diff options
255 files changed, 4289 insertions, 4631 deletions
diff --git a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml index 3fd3ce5df270..5274c24d11e0 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml @@ -1,6 +1,6 @@ <refentry id="V4L2-PIX-FMT-NV12M"> <refmeta> - <refentrytitle>V4L2_PIX_FMT_NV12M ('NV12M')</refentrytitle> + <refentrytitle>V4L2_PIX_FMT_NV12M ('NM12')</refentrytitle> &manvol; </refmeta> <refnamediv> diff --git a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index 9957863daf18..60308f1eefdf 100644 --- a/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml @@ -1,6 +1,6 @@ <refentry id="V4L2-PIX-FMT-YUV420M"> <refmeta> - <refentrytitle>V4L2_PIX_FMT_YUV420M ('YU12M')</refentrytitle> + <refentrytitle>V4L2_PIX_FMT_YUV420M ('YM12')</refentrytitle> &manvol; </refmeta> <refnamediv> diff --git a/MAINTAINERS b/MAINTAINERS index cf900fcd074b..27085a75162f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1882,6 +1882,16 @@ F: Documentation/filesystems/coda.txt F: fs/coda/ F: include/linux/coda*.h +COMMON CLK FRAMEWORK +M: Mike Turquette <mturquette@ti.com> +M: Mike Turquette <mturquette@linaro.org> +L: linux-arm-kernel@lists.infradead.org (same as CLK API & CLKDEV) +T: git git://git.linaro.org/people/mturquette/linux.git +S: Maintained +F: drivers/clk/clk.c +F: drivers/clk/clk-* +F: include/linux/clk-pr* + COMMON INTERNET FILE SYSTEM (CIFS) M: Steve French <sfrench@samba.org> L: linux-cifs@vger.kernel.org @@ -2321,9 +2331,9 @@ S: Supported F: drivers/acpi/dock.c DOCUMENTATION -M: Randy Dunlap <rdunlap@xenotime.net> +M: Rob Landley <rob@landley.net> L: linux-doc@vger.kernel.org -T: quilt http://xenotime.net/kernel-doc-patches/current/ +T: TBD S: Maintained F: Documentation/ @@ -6334,9 +6344,7 @@ L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.st.com/spear S: Maintained -F: arch/arm/mach-spear*/clock.c -F: arch/arm/plat-spear/clock.c -F: arch/arm/plat-spear/include/plat/clock.h +F: drivers/clk/spear/ SPI SUBSYSTEM M: Grant Likely <grant.likely@secretlab.ca> @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 4 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Saber-toothed Squirrel # *DOCUMENTATION* diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cf006d40342c..ce030c242644 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -980,6 +980,7 @@ config PLAT_SPEAR select ARM_AMBA select ARCH_REQUIRE_GPIOLIB select CLKDEV_LOOKUP + select COMMON_CLK select CLKSRC_MMIO select GENERIC_CLOCKEVENTS select HAVE_CLK diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig index b5ac644e12af..6b31cb60daab 100644 --- a/arch/arm/configs/imx_v4_v5_defconfig +++ b/arch/arm/configs/imx_v4_v5_defconfig @@ -112,6 +112,7 @@ CONFIG_WATCHDOG=y CONFIG_IMX2_WDT=y CONFIG_MFD_MC13XXX=y CONFIG_REGULATOR=y +CONFIG_REGULATOR_FIXED_VOLTAGE=y CONFIG_REGULATOR_MC13783=y CONFIG_REGULATOR_MC13892=y CONFIG_FB=y diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig index 889d73ac1ae1..7e84f453e8a6 100644 --- a/arch/arm/configs/u8500_defconfig +++ b/arch/arm/configs/u8500_defconfig @@ -8,8 +8,6 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_LBDAF is not set # CONFIG_BLK_DEV_BSG is not set CONFIG_ARCH_U8500=y -CONFIG_UX500_SOC_DB5500=y -CONFIG_UX500_SOC_DB8500=y CONFIG_MACH_HREFV60=y CONFIG_MACH_SNOWBALL=y CONFIG_MACH_U5500=y @@ -39,7 +37,6 @@ CONFIG_CAIF=y CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_BLK_DEV_RAM=y CONFIG_BLK_DEV_RAM_SIZE=65536 -CONFIG_MISC_DEVICES=y CONFIG_AB8500_PWM=y CONFIG_SENSORS_BH1780=y CONFIG_NETDEVICES=y @@ -65,16 +62,18 @@ CONFIG_SERIAL_AMBA_PL011=y CONFIG_SERIAL_AMBA_PL011_CONSOLE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_NOMADIK=y -CONFIG_I2C=y -CONFIG_I2C_NOMADIK=y CONFIG_SPI=y CONFIG_SPI_PL022=y CONFIG_GPIO_STMPE=y CONFIG_GPIO_TC3589X=y +CONFIG_POWER_SUPPLY=y +CONFIG_AB8500_BM=y +CONFIG_AB8500_BATTERY_THERM_ON_BATCTRL=y CONFIG_MFD_STMPE=y CONFIG_MFD_TC3589X=y CONFIG_AB5500_CORE=y CONFIG_AB8500_CORE=y +CONFIG_REGULATOR=y CONFIG_REGULATOR_AB8500=y # CONFIG_HID_SUPPORT is not set CONFIG_USB_GADGET=y diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 99ce5c955e39..05774e5b1cba 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -1173,7 +1173,6 @@ void __init at91_add_device_serial(void) printk(KERN_INFO "AT91: No default serial console defined.\n"); } #else -void __init __deprecated at91_init_serial(struct at91_uart_config *config) {} void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} void __init at91_set_serial_console(unsigned portnr) {} void __init at91_add_device_serial(void) {} diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c index dd7f782b0b91..104ca40d8d18 100644 --- a/arch/arm/mach-at91/at91rm9200_time.c +++ b/arch/arm/mach-at91/at91rm9200_time.c @@ -23,6 +23,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/clockchips.h> +#include <linux/export.h> #include <asm/mach/time.h> @@ -176,6 +177,7 @@ static struct clock_event_device clkevt = { }; void __iomem *at91_st_base; +EXPORT_SYMBOL_GPL(at91_st_base); void __init at91rm9200_ioremap_st(u32 addr) { diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c index 11cbaa8946fe..b2e4fe21f346 100644 --- a/arch/arm/mach-at91/board-rm9200ek.c +++ b/arch/arm/mach-at91/board-rm9200ek.c @@ -117,7 +117,7 @@ static struct i2c_board_info __initdata ek_i2c_devices[] = { }; #define EK_FLASH_BASE AT91_CHIPSELECT_0 -#define EK_FLASH_SIZE SZ_2M +#define EK_FLASH_SIZE SZ_8M static struct physmap_flash_data ek_flash_data = { .width = 2, diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c index c3f994462864..065fed342424 100644 --- a/arch/arm/mach-at91/board-sam9261ek.c +++ b/arch/arm/mach-at91/board-sam9261ek.c @@ -85,8 +85,6 @@ static struct resource dm9000_resource[] = { .flags = IORESOURCE_MEM }, [2] = { - .start = AT91_PIN_PC11, - .end = AT91_PIN_PC11, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE, } @@ -130,6 +128,8 @@ static struct sam9_smc_config __initdata dm9000_smc_config = { static void __init ek_add_device_dm9000(void) { + struct resource *r = &dm9000_resource[2]; + /* Configure chip-select 2 (DM9000) */ sam9_smc_configure(0, 2, &dm9000_smc_config); @@ -139,6 +139,7 @@ static void __init ek_add_device_dm9000(void) /* Configure Interrupt pin as input, no pull-up */ at91_set_gpio_input(AT91_PIN_PC11, 0); + r->start = r->end = gpio_to_irq(AT91_PIN_PC11); platform_device_register(&dm9000_device); } #else diff --git a/arch/arm/mach-at91/clock.c b/arch/arm/mach-at91/clock.c index a0f4d7424cdc..6b692824c988 100644 --- a/arch/arm/mach-at91/clock.c +++ b/arch/arm/mach-at91/clock.c @@ -35,6 +35,7 @@ #include "generic.h" void __iomem *at91_pmc_base; +EXPORT_SYMBOL_GPL(at91_pmc_base); /* * There's a lot more which can be done with clocks, including cpufreq diff --git a/arch/arm/mach-at91/include/mach/at91_pmc.h b/arch/arm/mach-at91/include/mach/at91_pmc.h index 36604782a78f..ea2c57a86ca6 100644 --- a/arch/arm/mach-at91/include/mach/at91_pmc.h +++ b/arch/arm/mach-at91/include/mach/at91_pmc.h @@ -25,7 +25,7 @@ extern void __iomem *at91_pmc_base; #define at91_pmc_write(field, value) \ __raw_writel(value, at91_pmc_base + field) #else -.extern at91_aic_base +.extern at91_pmc_base #endif #define AT91_PMC_SCER 0x00 /* System Clock Enable Register */ diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c index 97cc04dc8073..f44a2e7272e3 100644 --- a/arch/arm/mach-at91/setup.c +++ b/arch/arm/mach-at91/setup.c @@ -54,6 +54,7 @@ void __init at91_init_interrupts(unsigned int *priority) } void __iomem *at91_ramc_base[2]; +EXPORT_SYMBOL_GPL(at91_ramc_base); void __init at91_ioremap_ramc(int id, u32 addr, u32 size) { @@ -292,6 +293,7 @@ void __init at91_ioremap_rstc(u32 base_addr) } void __iomem *at91_matrix_base; +EXPORT_SYMBOL_GPL(at91_matrix_base); void __init at91_ioremap_matrix(u32 base_addr) { diff --git a/arch/arm/mach-bcmring/core.c b/arch/arm/mach-bcmring/core.c index 22e4e0a28ad1..adbfb1994582 100644 --- a/arch/arm/mach-bcmring/core.c +++ b/arch/arm/mach-bcmring/core.c @@ -52,8 +52,8 @@ #include <mach/csp/chipcHw_inline.h> #include <mach/csp/tmrHw_reg.h> -static AMBA_APB_DEVICE(uartA, "uarta", MM_ADDR_IO_UARTA, { IRQ_UARTA }, NULL); -static AMBA_APB_DEVICE(uartB, "uartb", MM_ADDR_IO_UARTB, { IRQ_UARTB }, NULL); +static AMBA_APB_DEVICE(uartA, "uartA", 0, MM_ADDR_IO_UARTA, {IRQ_UARTA}, NULL); +static AMBA_APB_DEVICE(uartB, "uartB", 0, MM_ADDR_IO_UARTB, {IRQ_UARTB}, NULL); static struct clk pll1_clk = { .name = "PLL1", diff --git a/arch/arm/mach-imx/imx27-dt.c b/arch/arm/mach-imx/imx27-dt.c index 861ceb8232d6..ed38d03c61f2 100644 --- a/arch/arm/mach-imx/imx27-dt.c +++ b/arch/arm/mach-imx/imx27-dt.c @@ -35,7 +35,7 @@ static const struct of_dev_auxdata imx27_auxdata_lookup[] __initconst = { static int __init imx27_avic_add_irq_domain(struct device_node *np, struct device_node *interrupt_parent) { - irq_domain_add_simple(np, 0); + irq_domain_add_legacy(np, 64, 0, 0, &irq_domain_simple_ops, NULL); return 0; } @@ -44,7 +44,9 @@ static int __init imx27_gpio_add_irq_domain(struct device_node *np, { static int gpio_irq_base = MXC_GPIO_IRQ_START + ARCH_NR_GPIOS; - irq_domain_add_simple(np, gpio_irq_base); + gpio_irq_base -= 32; + irq_domain_add_legacy(np, 32, gpio_irq_base, 0, &irq_domain_simple_ops, + NULL); return 0; } diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index 05250aed61fb..e10f3914fcfe 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -35,7 +35,7 @@ static void imx5_idle(void) } clk_enable(gpc_dvfs_clk); mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF); - if (tzic_enable_wake() != 0) + if (!tzic_enable_wake()) cpu_do_idle(); clk_disable(gpc_dvfs_clk); } diff --git a/arch/arm/mach-omap1/mux.c b/arch/arm/mach-omap1/mux.c index 087dba0df47e..e9cc52d4cb28 100644 --- a/arch/arm/mach-omap1/mux.c +++ b/arch/arm/mach-omap1/mux.c @@ -27,6 +27,7 @@ #include <linux/io.h> #include <linux/spinlock.h> +#include <mach/hardware.h> #include <plat/mux.h> diff --git a/arch/arm/mach-omap1/timer.c b/arch/arm/mach-omap1/timer.c index 6e90665a7c47..fb202af01d0d 100644 --- a/arch/arm/mach-omap1/timer.c +++ b/arch/arm/mach-omap1/timer.c @@ -47,9 +47,9 @@ static int omap1_dm_timer_set_src(struct platform_device *pdev, int n = (pdev->id - 1) << 1; u32 l; - l = __raw_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); + l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n); l |= source << n; - __raw_writel(l, MOD_CONF_CTRL_1); + omap_writel(l, MOD_CONF_CTRL_1); return 0; } diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index a39fc4bbd2b8..130ab00c09a2 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -20,6 +20,7 @@ #include <linux/usb/otg.h> #include <linux/spi/spi.h> #include <linux/i2c/twl.h> +#include <linux/mfd/twl6040.h> #include <linux/gpio_keys.h> #include <linux/regulator/machine.h> #include <linux/regulator/fixed.h> @@ -560,7 +561,7 @@ static struct regulator_init_data sdp4430_vusim = { }, }; -static struct twl4030_codec_data twl6040_codec = { +static struct twl6040_codec_data twl6040_codec = { /* single-step ramp for headset and handsfree */ .hs_left_step = 0x0f, .hs_right_step = 0x0f, @@ -568,7 +569,7 @@ static struct twl4030_codec_data twl6040_codec = { .hf_right_step = 0x1d, }; -static struct twl4030_vibra_data twl6040_vibra = { +static struct twl6040_vibra_data twl6040_vibra = { .vibldrv_res = 8, .vibrdrv_res = 3, .viblmotor_res = 10, @@ -577,16 +578,14 @@ static struct twl4030_vibra_data twl6040_vibra = { .vddvibr_uV = 0, /* fixed volt supply - VBAT */ }; -static struct twl4030_audio_data twl6040_audio = { +static struct twl6040_platform_data twl6040_data = { .codec = &twl6040_codec, .vibra = &twl6040_vibra, .audpwron_gpio = 127, - .naudint_irq = OMAP44XX_IRQ_SYS_2N, .irq_base = TWL6040_CODEC_IRQ_BASE, }; static struct twl4030_platform_data sdp4430_twldata = { - .audio = &twl6040_audio, /* Regulators */ .vusim = &sdp4430_vusim, .vaux1 = &sdp4430_vaux1, @@ -617,7 +616,8 @@ static int __init omap4_i2c_init(void) TWL_COMMON_REGULATOR_VCXIO | TWL_COMMON_REGULATOR_VUSB | TWL_COMMON_REGULATOR_CLK32KG); - omap4_pmic_init("twl6030", &sdp4430_twldata); + omap4_pmic_init("twl6030", &sdp4430_twldata, + &twl6040_data, OMAP44XX_IRQ_SYS_2N); omap_register_i2c_bus(2, 400, NULL, 0); omap_register_i2c_bus(3, 400, sdp4430_i2c_3_boardinfo, ARRAY_SIZE(sdp4430_i2c_3_boardinfo)); diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c index 74e1687b5170..098d183a0086 100644 --- a/arch/arm/mach-omap2/board-generic.c +++ b/arch/arm/mach-omap2/board-generic.c @@ -137,7 +137,7 @@ static struct twl4030_platform_data sdp4430_twldata = { static void __init omap4_i2c_init(void) { - omap4_pmic_init("twl6030", &sdp4430_twldata); + omap4_pmic_init("twl6030", &sdp4430_twldata, NULL, 0); } static void __init omap4_init(void) diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c index d8c0e89f0126..1b782ba53433 100644 --- a/arch/arm/mach-omap2/board-omap4panda.c +++ b/arch/arm/mach-omap2/board-omap4panda.c @@ -25,6 +25,7 @@ #include <linux/gpio.h> #include <linux/usb/otg.h> #include <linux/i2c/twl.h> +#include <linux/mfd/twl6040.h> #include <linux/regulator/machine.h> #include <linux/regulator/fixed.h> #include <linux/wl12xx.h> @@ -284,7 +285,7 @@ static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers) return 0; } -static struct twl4030_codec_data twl6040_codec = { +static struct twl6040_codec_data twl6040_codec = { /* single-step ramp for headset and handsfree */ .hs_left_step = 0x0f, .hs_right_step = 0x0f, @@ -292,17 +293,14 @@ static struct twl4030_codec_data twl6040_codec = { .hf_right_step = 0x1d, }; -static struct twl4030_audio_data twl6040_audio = { +static struct twl6040_platform_data twl6040_data = { .codec = &twl6040_codec, .audpwron_gpio = 127, - .naudint_irq = OMAP44XX_IRQ_SYS_2N, .irq_base = TWL6040_CODEC_IRQ_BASE, }; /* Panda board uses the common PMIC configuration */ -static struct twl4030_platform_data omap4_panda_twldata = { - .audio = &twl6040_audio, -}; +static struct twl4030_platform_data omap4_panda_twldata; /* * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM @@ -326,7 +324,8 @@ static int __init omap4_panda_i2c_init(void) TWL_COMMON_REGULATOR_VCXIO | TWL_COMMON_REGULATOR_VUSB | TWL_COMMON_REGULATOR_CLK32KG); - omap4_pmic_init("twl6030", &omap4_panda_twldata); + omap4_pmic_init("twl6030", &omap4_panda_twldata, + &twl6040_data, OMAP44XX_IRQ_SYS_2N); omap_register_i2c_bus(2, 400, NULL, 0); /* * Bus 3 is attached to the DVI port where devices like the pico DLP diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 2c27fdb61e66..7144ae651d3d 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1422,6 +1422,9 @@ static int _ocp_softreset(struct omap_hwmod *oh) goto dis_opt_clks; _write_sysconfig(v, oh); + if (oh->class->sysc->srst_udelay) + udelay(oh->class->sysc->srst_udelay); + if (oh->class->sysc->sysc_flags & SYSS_HAS_RESET_STATUS) omap_test_timeout((omap_hwmod_read(oh, oh->class->sysc->syss_offs) @@ -1903,10 +1906,20 @@ void omap_hwmod_write(u32 v, struct omap_hwmod *oh, u16 reg_offs) */ int omap_hwmod_softreset(struct omap_hwmod *oh) { - if (!oh) + u32 v; + int ret; + + if (!oh || !(oh->_sysc_cache)) return -EINVAL; - return _ocp_softreset(oh); + v = oh->_sysc_cache; + ret = _set_softreset(oh, &v); + if (ret) + goto error; + _write_sysconfig(v, oh); + +error: + return ret; } /** diff --git a/arch/arm/mach-omap2/omap_hwmod_2420_data.c b/arch/arm/mach-omap2/omap_hwmod_2420_data.c index a5409ce3f323..a6bde34e443a 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2420_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2420_data.c @@ -1000,7 +1000,6 @@ static struct omap_hwmod_ocp_if omap2420_l4_core__dss_venc = { .flags = OMAP_FIREWALL_L4, } }, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_2430_data.c b/arch/arm/mach-omap2/omap_hwmod_2430_data.c index c4f56cb60d7d..04a3885f4475 100644 --- a/arch/arm/mach-omap2/omap_hwmod_2430_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_2430_data.c @@ -1049,7 +1049,6 @@ static struct omap_hwmod_ocp_if omap2430_l4_core__dss_venc = { .slave = &omap2430_dss_venc_hwmod, .clk = "dss_ick", .addr = omap2_dss_venc_addrs, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index 34b9766d1d23..db86ce90c69f 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1676,7 +1676,6 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__dss_venc = { .flags = OMAP_FIREWALL_L4, } }, - .flags = OCPIF_SWSUP_IDLE, .user = OCP_USER_MPU | OCP_USER_SDMA, }; diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index cc9bd106a854..6abc75753e42 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -2594,6 +2594,15 @@ static struct omap_hwmod omap44xx_ipu_hwmod = { static struct omap_hwmod_class_sysconfig omap44xx_iss_sysc = { .rev_offs = 0x0000, .sysc_offs = 0x0010, + /* + * ISS needs 100 OCP clk cycles delay after a softreset before + * accessing sysconfig again. + * The lowest frequency at the moment for L3 bus is 100 MHz, so + * 1usec delay is needed. Add an x2 margin to be safe (2 usecs). + * + * TODO: Indicate errata when available. + */ + .srst_udelay = 2, .sysc_flags = (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS | SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET), .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 0cdd359a128e..9fc2f44188cb 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -108,8 +108,14 @@ static void omap_uart_set_noidle(struct platform_device *pdev) static void omap_uart_set_smartidle(struct platform_device *pdev) { struct omap_device *od = to_omap_device(pdev); + u8 idlemode; - omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_SMART); + if (od->hwmods[0]->class->sysc->idlemodes & SIDLE_SMART_WKUP) + idlemode = HWMOD_IDLEMODE_SMART_WKUP; + else + idlemode = HWMOD_IDLEMODE_SMART; + + omap_hwmod_set_slave_idlemode(od->hwmods[0], idlemode); } #else @@ -120,124 +126,8 @@ static void omap_uart_set_smartidle(struct platform_device *pdev) {} #endif /* CONFIG_PM */ #ifdef CONFIG_OMAP_MUX -static struct omap_device_pad default_uart1_pads[] __initdata = { - { - .name = "uart1_cts.uart1_cts", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart1_rts.uart1_rts", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart1_tx.uart1_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart1_rx.uart1_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_uart2_pads[] __initdata = { - { - .name = "uart2_cts.uart2_cts", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart2_rts.uart2_rts", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart2_tx.uart2_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart2_rx.uart2_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_uart3_pads[] __initdata = { - { - .name = "uart3_cts_rctx.uart3_cts_rctx", - .enable = OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0, - }, - { - .name = "uart3_rts_sd.uart3_rts_sd", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart3_tx_irtx.uart3_tx_irtx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart3_rx_irrx.uart3_rx_irrx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - }, -}; - -static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = { - { - .name = "gpmc_wait2.uart4_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "gpmc_wait3.uart4_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE2, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE2, - }, -}; - -static struct omap_device_pad default_omap4_uart4_pads[] __initdata = { - { - .name = "uart4_tx.uart4_tx", - .enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0, - }, - { - .name = "uart4_rx.uart4_rx", - .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP, - .enable = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - .idle = OMAP_PIN_INPUT | OMAP_MUX_MODE0, - }, -}; - static void omap_serial_fill_default_pads(struct omap_board_data *bdata) { - switch (bdata->id) { - case 0: - bdata->pads = default_uart1_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart1_pads); - break; - case 1: - bdata->pads = default_uart2_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart2_pads); - break; - case 2: - bdata->pads = default_uart3_pads; - bdata->pads_cnt = ARRAY_SIZE(default_uart3_pads); - break; - case 3: - if (cpu_is_omap44xx()) { - bdata->pads = default_omap4_uart4_pads; - bdata->pads_cnt = - ARRAY_SIZE(default_omap4_uart4_pads); - } else if (cpu_is_omap3630()) { - bdata->pads = default_omap36xx_uart4_pads; - bdata->pads_cnt = - ARRAY_SIZE(default_omap36xx_uart4_pads); - } - break; - default: - break; - } } #else static void omap_serial_fill_default_pads(struct omap_board_data *bdata) {} diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 4b57757bf9d1..7a7b89304c48 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -37,6 +37,16 @@ static struct i2c_board_info __initdata pmic_i2c_board_info = { .flags = I2C_CLIENT_WAKE, }; +static struct i2c_board_info __initdata omap4_i2c1_board_info[] = { + { + .addr = 0x48, + .flags = I2C_CLIENT_WAKE, + }, + { + I2C_BOARD_INFO("twl6040", 0x4b), + }, +}; + void __init omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq, struct twl4030_platform_data *pmic_data) @@ -49,14 +59,31 @@ void __init omap_pmic_init(int bus, u32 clkrate, omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1); } +void __init omap4_pmic_init(const char *pmic_type, + struct twl4030_platform_data *pmic_data, + struct twl6040_platform_data *twl6040_data, int twl6040_irq) +{ + /* PMIC part*/ + strncpy(omap4_i2c1_board_info[0].type, pmic_type, + sizeof(omap4_i2c1_board_info[0].type)); + omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N; + omap4_i2c1_board_info[0].platform_data = pmic_data; + + /* TWL6040 audio IC part */ + omap4_i2c1_board_info[1].irq = twl6040_irq; + omap4_i2c1_board_info[1].platform_data = twl6040_data; + + omap_register_i2c_bus(1, 400, omap4_i2c1_board_info, 2); + +} + void __init omap_pmic_late_init(void) { /* Init the OMAP TWL parameters (if PMIC has been registerd) */ - if (!pmic_i2c_board_info.irq) - return; - - omap3_twl_init(); - omap4_twl_init(); + if (pmic_i2c_board_info.irq) + omap3_twl_init(); + if (omap4_i2c1_board_info[0].irq) + omap4_twl_init(); } #if defined(CONFIG_ARCH_OMAP3) diff --git a/arch/arm/mach-omap2/twl-common.h b/arch/arm/mach-omap2/twl-common.h index 275dde8cb27a..09627483a57f 100644 --- a/arch/arm/mach-omap2/twl-common.h +++ b/arch/arm/mach-omap2/twl-common.h @@ -29,6 +29,7 @@ struct twl4030_platform_data; +struct twl6040_platform_data; void omap_pmic_init(int bus, u32 clkrate, const char *pmic_type, int pmic_irq, struct twl4030_platform_data *pmic_data); @@ -46,12 +47,9 @@ static inline void omap3_pmic_init(const char *pmic_type, omap_pmic_init(1, 2600, pmic_type, INT_34XX_SYS_NIRQ, pmic_data); } -static inline void omap4_pmic_init(const char *pmic_type, - struct twl4030_platform_data *pmic_data) -{ - /* Phoenix Audio IC needs I2C1 to start with 400 KHz or less */ - omap_pmic_init(1, 400, pmic_type, OMAP44XX_IRQ_SYS_1N, pmic_data); -} +void omap4_pmic_init(const char *pmic_type, + struct twl4030_platform_data *pmic_data, + struct twl6040_platform_data *audio_data, int twl6040_irq); void omap3_pmic_get_config(struct twl4030_platform_data *pmic_data, u32 pdata_flags, u32 regulators_flags); diff --git a/arch/arm/mach-spear3xx/Makefile b/arch/arm/mach-spear3xx/Makefile index 17b5d83cf2d5..8d12faa178fd 100644 --- a/arch/arm/mach-spear3xx/Makefile +++ b/arch/arm/mach-spear3xx/Makefile @@ -3,7 +3,7 @@ # # common files -obj-$(CONFIG_ARCH_SPEAR3XX) += spear3xx.o clock.o +obj-$(CONFIG_ARCH_SPEAR3XX) += spear3xx.o # spear300 specific files obj-$(CONFIG_MACH_SPEAR300) += spear300.o diff --git a/arch/arm/mach-spear3xx/clock.c b/arch/arm/mach-spear3xx/clock.c deleted file mode 100644 index eeafe38eab25..000000000000 --- a/arch/arm/mach-spear3xx/clock.c +++ /dev/null @@ -1,794 +0,0 @@ -/* - * arch/arm/mach-spear3xx/clock.c - * - * SPEAr3xx machines clock framework source file - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/clkdev.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <linux/of_platform.h> -#include <asm/mach-types.h> -#include <plat/clock.h> -#include <mach/misc_regs.h> - -/* root clks */ -/* 32 KHz oscillator clock */ -static struct clk osc_32k_clk = { - .flags = ALWAYS_ENABLED, - .rate = 32000, -}; - -/* 24 MHz oscillator clock */ -static struct clk osc_24m_clk = { - .flags = ALWAYS_ENABLED, - .rate = 24000000, -}; - -/* clock derived from 32 KHz osc clk */ -/* rtc clock */ -static struct clk rtc_clk = { - .pclk = &osc_32k_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = RTC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from 24 MHz osc clk */ -/* pll masks structure */ -static struct pll_clk_masks pll1_masks = { - .mode_mask = PLL_MODE_MASK, - .mode_shift = PLL_MODE_SHIFT, - .norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK, - .norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT, - .dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK, - .dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT, - .div_p_mask = PLL_DIV_P_MASK, - .div_p_shift = PLL_DIV_P_SHIFT, - .div_n_mask = PLL_DIV_N_MASK, - .div_n_shift = PLL_DIV_N_SHIFT, -}; - -/* pll1 configuration structure */ -static struct pll_clk_config pll1_config = { - .mode_reg = PLL1_CTR, - .cfg_reg = PLL1_FRQ, - .masks = &pll1_masks, -}; - -/* pll rate configuration table, in ascending order of rates */ -struct pll_rate_tbl pll_rtbl[] = { - {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* 266 MHz */ - {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* 332 MHz */ -}; - -/* PLL1 clock */ -static struct clk pll1_clk = { - .flags = ENABLED_ON_INIT, - .pclk = &osc_24m_clk, - .en_reg = PLL1_CTR, - .en_reg_bit = PLL_ENABLE, - .calc_rate = &pll_calc_rate, - .recalc = &pll_clk_recalc, - .set_rate = &pll_clk_set_rate, - .rate_config = {pll_rtbl, ARRAY_SIZE(pll_rtbl), 1}, - .private_data = &pll1_config, -}; - -/* PLL3 48 MHz clock */ -static struct clk pll3_48m_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_24m_clk, - .rate = 48000000, -}; - -/* watch dog timer clock */ -static struct clk wdt_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_24m_clk, - .recalc = &follow_parent, -}; - -/* clock derived from pll1 clk */ -/* cpu clock */ -static struct clk cpu_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .recalc = &follow_parent, -}; - -/* ahb masks structure */ -static struct bus_clk_masks ahb_masks = { - .mask = PLL_HCLK_RATIO_MASK, - .shift = PLL_HCLK_RATIO_SHIFT, -}; - -/* ahb configuration structure */ -static struct bus_clk_config ahb_config = { - .reg = CORE_CLK_CFG, - .masks = &ahb_masks, -}; - -/* ahb rate configuration table, in ascending order of rates */ -struct bus_rate_tbl bus_rtbl[] = { - {.div = 3}, /* == parent divided by 4 */ - {.div = 2}, /* == parent divided by 3 */ - {.div = 1}, /* == parent divided by 2 */ - {.div = 0}, /* == parent divided by 1 */ -}; - -/* ahb clock */ -static struct clk ahb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &ahb_config, -}; - -/* auxiliary synthesizers masks */ -static struct aux_clk_masks aux_masks = { - .eq_sel_mask = AUX_EQ_SEL_MASK, - .eq_sel_shift = AUX_EQ_SEL_SHIFT, - .eq1_mask = AUX_EQ1_SEL, - .eq2_mask = AUX_EQ2_SEL, - .xscale_sel_mask = AUX_XSCALE_MASK, - .xscale_sel_shift = AUX_XSCALE_SHIFT, - .yscale_sel_mask = AUX_YSCALE_MASK, - .yscale_sel_shift = AUX_YSCALE_SHIFT, -}; - -/* uart synth configurations */ -static struct aux_clk_config uart_synth_config = { - .synth_reg = UART_CLK_SYNT, - .masks = &aux_masks, -}; - -/* aux rate configuration table, in ascending order of rates */ -struct aux_rate_tbl aux_rtbl[] = { - /* For PLL1 = 332 MHz */ - {.xscale = 1, .yscale = 8, .eq = 1}, /* 41.5 MHz */ - {.xscale = 1, .yscale = 4, .eq = 1}, /* 83 MHz */ - {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ -}; - -/* uart synth clock */ -static struct clk uart_synth_clk = { - .en_reg = UART_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 1}, - .private_data = &uart_synth_config, -}; - -/* uart parents */ -static struct pclk_info uart_pclk_info[] = { - { - .pclk = &uart_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* uart parent select structure */ -static struct pclk_sel uart_pclk_sel = { - .pclk_info = uart_pclk_info, - .pclk_count = ARRAY_SIZE(uart_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = UART_CLK_MASK, -}; - -/* uart clock */ -static struct clk uart_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* firda configurations */ -static struct aux_clk_config firda_synth_config = { - .synth_reg = FIRDA_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk firda_synth_clk = { - .en_reg = FIRDA_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 1}, - .private_data = &firda_synth_config, -}; - -/* firda parents */ -static struct pclk_info firda_pclk_info[] = { - { - .pclk = &firda_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* firda parent select structure */ -static struct pclk_sel firda_pclk_sel = { - .pclk_info = firda_pclk_info, - .pclk_count = ARRAY_SIZE(firda_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = FIRDA_CLK_MASK, -}; - -/* firda clock */ -static struct clk firda_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FIRDA_CLK_ENB, - .pclk_sel = &firda_pclk_sel, - .pclk_sel_shift = FIRDA_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt synthesizer masks */ -static struct gpt_clk_masks gpt_masks = { - .mscale_sel_mask = GPT_MSCALE_MASK, - .mscale_sel_shift = GPT_MSCALE_SHIFT, - .nscale_sel_mask = GPT_NSCALE_MASK, - .nscale_sel_shift = GPT_NSCALE_SHIFT, -}; - -/* gpt rate configuration table, in ascending order of rates */ -struct gpt_rate_tbl gpt_rtbl[] = { - /* For pll1 = 332 MHz */ - {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ - {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ - {.mscale = 1, .nscale = 0}, /* 83 MHz */ -}; - -/* gpt0 synth clk config*/ -static struct gpt_clk_config gpt0_synth_config = { - .synth_reg = PRSC1_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt0_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt0_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt0_pclk_info[] = { - { - .pclk = &gpt0_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt0_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt0 timer clock */ -static struct clk gpt0_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt0_pclk_sel, - .pclk_sel_shift = GPT0_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt1 synth clk configurations */ -static struct gpt_clk_config gpt1_synth_config = { - .synth_reg = PRSC2_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt1 synth clock */ -static struct clk gpt1_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt1_synth_config, -}; - -static struct pclk_info gpt1_pclk_info[] = { - { - .pclk = &gpt1_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt1_pclk_sel = { - .pclk_info = gpt1_pclk_info, - .pclk_count = ARRAY_SIZE(gpt1_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt1 timer clock */ -static struct clk gpt1_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPT1_CLK_ENB, - .pclk_sel = &gpt1_pclk_sel, - .pclk_sel_shift = GPT1_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt2 synth clk configurations */ -static struct gpt_clk_config gpt2_synth_config = { - .synth_reg = PRSC3_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt1 synth clock */ -static struct clk gpt2_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt2_synth_config, -}; - -static struct pclk_info gpt2_pclk_info[] = { - { - .pclk = &gpt2_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt2_pclk_sel = { - .pclk_info = gpt2_pclk_info, - .pclk_count = ARRAY_SIZE(gpt2_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt2 timer clock */ -static struct clk gpt2_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPT2_CLK_ENB, - .pclk_sel = &gpt2_pclk_sel, - .pclk_sel_shift = GPT2_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clock derived from pll3 clk */ -/* usbh clock */ -static struct clk usbh_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbd clock */ -static struct clk usbd_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBD_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from usbh clk */ -/* usbh0 clock */ -static struct clk usbh0_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &usbh_clk, - .recalc = &follow_parent, -}; - -/* usbh1 clock */ -static struct clk usbh1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &usbh_clk, - .recalc = &follow_parent, -}; - -/* clock derived from ahb clk */ -/* apb masks structure */ -static struct bus_clk_masks apb_masks = { - .mask = HCLK_PCLK_RATIO_MASK, - .shift = HCLK_PCLK_RATIO_SHIFT, -}; - -/* apb configuration structure */ -static struct bus_clk_config apb_config = { - .reg = CORE_CLK_CFG, - .masks = &apb_masks, -}; - -/* apb clock */ -static struct clk apb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &apb_config, -}; - -/* i2c clock */ -static struct clk i2c_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = I2C_CLK_ENB, - .recalc = &follow_parent, -}; - -/* dma clock */ -static struct clk dma_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = DMA_CLK_ENB, - .recalc = &follow_parent, -}; - -/* jpeg clock */ -static struct clk jpeg_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = JPEG_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gmac clock */ -static struct clk gmac_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GMAC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* smi clock */ -static struct clk smi_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SMI_CLK_ENB, - .recalc = &follow_parent, -}; - -/* c3 clock */ -static struct clk c3_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = C3_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from apb clk */ -/* adc clock */ -static struct clk adc_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = ADC_CLK_ENB, - .recalc = &follow_parent, -}; - -#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320) -/* emi clock */ -static struct clk emi_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif - -/* ssp clock */ -static struct clk ssp0_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio clock */ -static struct clk gpio_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO_CLK_ENB, - .recalc = &follow_parent, -}; - -static struct clk dummy_apb_pclk; - -#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR310) || \ - defined(CONFIG_MACH_SPEAR320) -/* fsmc clock */ -static struct clk fsmc_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif - -/* common clocks to spear310 and spear320 */ -#if defined(CONFIG_MACH_SPEAR310) || defined(CONFIG_MACH_SPEAR320) -/* uart1 clock */ -static struct clk uart1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart2 clock */ -static struct clk uart2_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif /* CONFIG_MACH_SPEAR310 || CONFIG_MACH_SPEAR320 */ - -/* common clocks to spear300 and spear320 */ -#if defined(CONFIG_MACH_SPEAR300) || defined(CONFIG_MACH_SPEAR320) -/* clcd clock */ -static struct clk clcd_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll3_48m_clk, - .recalc = &follow_parent, -}; - -/* sdhci clock */ -static struct clk sdhci_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; -#endif /* CONFIG_MACH_SPEAR300 || CONFIG_MACH_SPEAR320 */ - -/* spear300 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR300 -/* gpio1 clock */ -static struct clk gpio1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* keyboard clock */ -static struct clk kbd_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -#endif - -/* spear310 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR310 -/* uart3 clock */ -static struct clk uart3_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart4 clock */ -static struct clk uart4_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* uart5 clock */ -static struct clk uart5_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif - -/* spear320 machine specific clock structures */ -#ifdef CONFIG_MACH_SPEAR320 -/* can0 clock */ -static struct clk can0_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* can1 clock */ -static struct clk can1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* i2c1 clock */ -static struct clk i2c1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .recalc = &follow_parent, -}; - -/* ssp1 clock */ -static struct clk ssp1_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* ssp2 clock */ -static struct clk ssp2_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* pwm clock */ -static struct clk pwm_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; -#endif - -/* array of all spear 3xx clock lookups */ -static struct clk_lookup spear_clk_lookups[] = { - CLKDEV_INIT(NULL, "apb_pclk", &dummy_apb_pclk), - /* root clks */ - CLKDEV_INIT(NULL, "osc_32k_clk", &osc_32k_clk), - CLKDEV_INIT(NULL, "osc_24m_clk", &osc_24m_clk), - /* clock derived from 32 KHz osc clk */ - CLKDEV_INIT("fc900000.rtc", NULL, &rtc_clk), - /* clock derived from 24 MHz osc clk */ - CLKDEV_INIT(NULL, "pll1_clk", &pll1_clk), - CLKDEV_INIT(NULL, "pll3_48m_clk", &pll3_48m_clk), - CLKDEV_INIT("fc880000.wdt", NULL, &wdt_clk), - /* clock derived from pll1 clk */ - CLKDEV_INIT(NULL, "cpu_clk", &cpu_clk), - CLKDEV_INIT(NULL, "ahb_clk", &ahb_clk), - CLKDEV_INIT(NULL, "uart_synth_clk", &uart_synth_clk), - CLKDEV_INIT(NULL, "firda_synth_clk", &firda_synth_clk), - CLKDEV_INIT(NULL, "gpt0_synth_clk", &gpt0_synth_clk), - CLKDEV_INIT(NULL, "gpt1_synth_clk", &gpt1_synth_clk), - CLKDEV_INIT(NULL, "gpt2_synth_clk", &gpt2_synth_clk), - CLKDEV_INIT("d0000000.serial", NULL, &uart_clk), - CLKDEV_INIT("firda", NULL, &firda_clk), - CLKDEV_INIT("gpt0", NULL, &gpt0_clk), - CLKDEV_INIT("gpt1", NULL, &gpt1_clk), - CLKDEV_INIT("gpt2", NULL, &gpt2_clk), - /* clock derived from pll3 clk */ - CLKDEV_INIT("designware_udc", NULL, &usbd_clk), - CLKDEV_INIT(NULL, "usbh_clk", &usbh_clk), - /* clock derived from usbh clk */ - CLKDEV_INIT(NULL, "usbh.0_clk", &usbh0_clk), - CLKDEV_INIT(NULL, "usbh.1_clk", &usbh1_clk), - /* clock derived from ahb clk */ - CLKDEV_INIT(NULL, "apb_clk", &apb_clk), - CLKDEV_INIT("d0180000.i2c", NULL, &i2c_clk), - CLKDEV_INIT("fc400000.dma", NULL, &dma_clk), - CLKDEV_INIT("jpeg", NULL, &jpeg_clk), - CLKDEV_INIT("e0800000.eth", NULL, &gmac_clk), - CLKDEV_INIT("fc000000.flash", NULL, &smi_clk), - CLKDEV_INIT("c3", NULL, &c3_clk), - /* clock derived from apb clk */ - CLKDEV_INIT("adc", NULL, &adc_clk), - CLKDEV_INIT("d0100000.spi", NULL, &ssp0_clk), - CLKDEV_INIT("fc980000.gpio", NULL, &gpio_clk), -}; - -/* array of all spear 300 clock lookups */ -#ifdef CONFIG_MACH_SPEAR300 -static struct clk_lookup spear300_clk_lookups[] = { - CLKDEV_INIT("60000000.clcd", NULL, &clcd_clk), - CLKDEV_INIT("94000000.flash", NULL, &fsmc_clk), - CLKDEV_INIT("a9000000.gpio", NULL, &gpio1_clk), - CLKDEV_INIT("a0000000.kbd", NULL, &kbd_clk), - CLKDEV_INIT("70000000.sdhci", NULL, &sdhci_clk), -}; - -void __init spear300_clk_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - for (i = 0; i < ARRAY_SIZE(spear300_clk_lookups); i++) - clk_register(&spear300_clk_lookups[i]); - - clk_init(); -} -#endif - -/* array of all spear 310 clock lookups */ -#ifdef CONFIG_MACH_SPEAR310 -static struct clk_lookup spear310_clk_lookups[] = { - CLKDEV_INIT("44000000.flash", NULL, &fsmc_clk), - CLKDEV_INIT(NULL, "emi", &emi_clk), - CLKDEV_INIT("b2000000.serial", NULL, &uart1_clk), - CLKDEV_INIT("b2080000.serial", NULL, &uart2_clk), - CLKDEV_INIT("b2100000.serial", NULL, &uart3_clk), - CLKDEV_INIT("b2180000.serial", NULL, &uart4_clk), - CLKDEV_INIT("b2200000.serial", NULL, &uart5_clk), -}; - -void __init spear310_clk_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - for (i = 0; i < ARRAY_SIZE(spear310_clk_lookups); i++) - clk_register(&spear310_clk_lookups[i]); - - clk_init(); -} -#endif - -/* array of all spear 320 clock lookups */ -#ifdef CONFIG_MACH_SPEAR320 -static struct clk_lookup spear320_clk_lookups[] = { - CLKDEV_INIT("90000000.clcd", NULL, &clcd_clk), - CLKDEV_INIT("4c000000.flash", NULL, &fsmc_clk), - CLKDEV_INIT("a7000000.i2c", NULL, &i2c1_clk), - CLKDEV_INIT(NULL, "emi", &emi_clk), - CLKDEV_INIT("pwm", NULL, &pwm_clk), - CLKDEV_INIT("70000000.sdhci", NULL, &sdhci_clk), - CLKDEV_INIT("c_can_platform.0", NULL, &can0_clk), - CLKDEV_INIT("c_can_platform.1", NULL, &can1_clk), - CLKDEV_INIT("a5000000.spi", NULL, &ssp1_clk), - CLKDEV_INIT("a6000000.spi", NULL, &ssp2_clk), - CLKDEV_INIT("a3000000.serial", NULL, &uart1_clk), - CLKDEV_INIT("a4000000.serial", NULL, &uart2_clk), -}; - -void __init spear320_clk_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - for (i = 0; i < ARRAY_SIZE(spear320_clk_lookups); i++) - clk_register(&spear320_clk_lookups[i]); - - clk_init(); -} -#endif diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h index 9603bf4d5119..c10eac6c10cb 100644 --- a/arch/arm/mach-spear3xx/include/mach/generic.h +++ b/arch/arm/mach-spear3xx/include/mach/generic.h @@ -37,27 +37,10 @@ extern struct pl08x_platform_data pl080_plat_data; /* Add spear3xx family function declarations here */ void __init spear_setup_timer(void); +void __init spear3xx_clk_init(void); void __init spear3xx_map_io(void); void __init spear3xx_dt_init_irq(void); void spear_restart(char, const char *); -/* spear300 declarations */ -#ifdef CONFIG_MACH_SPEAR300 -void __init spear300_clk_init(void); - -#endif /* CONFIG_MACH_SPEAR300 */ - -/* spear310 declarations */ -#ifdef CONFIG_MACH_SPEAR310 -void __init spear310_clk_init(void); - -#endif /* CONFIG_MACH_SPEAR310 */ - -/* spear320 declarations */ -#ifdef CONFIG_MACH_SPEAR320 -void __init spear320_clk_init(void); - -#endif /* CONFIG_MACH_SPEAR320 */ - #endif /* __MACH_GENERIC_H */ diff --git a/arch/arm/mach-spear3xx/include/mach/misc_regs.h b/arch/arm/mach-spear3xx/include/mach/misc_regs.h index 5bd8cd8d4852..50cfe0d1a7c4 100644 --- a/arch/arm/mach-spear3xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear3xx/include/mach/misc_regs.h @@ -15,150 +15,8 @@ #define __MACH_MISC_REGS_H #include <mach/hardware.h> +#include <mach/spear.h> #define MISC_BASE IOMEM(VA_SPEAR3XX_ICM3_MISC_REG_BASE) -#define SOC_CFG_CTR (MISC_BASE + 0x000) -#define DIAG_CFG_CTR (MISC_BASE + 0x004) -#define PLL1_CTR (MISC_BASE + 0x008) -#define PLL1_FRQ (MISC_BASE + 0x00C) -#define PLL1_MOD (MISC_BASE + 0x010) -#define PLL2_CTR (MISC_BASE + 0x014) -/* PLL_CTR register masks */ -#define PLL_ENABLE 2 -#define PLL_MODE_SHIFT 4 -#define PLL_MODE_MASK 0x3 -#define PLL_MODE_NORMAL 0 -#define PLL_MODE_FRACTION 1 -#define PLL_MODE_DITH_DSB 2 -#define PLL_MODE_DITH_SSB 3 - -#define PLL2_FRQ (MISC_BASE + 0x018) -/* PLL FRQ register masks */ -#define PLL_DIV_N_SHIFT 0 -#define PLL_DIV_N_MASK 0xFF -#define PLL_DIV_P_SHIFT 8 -#define PLL_DIV_P_MASK 0x7 -#define PLL_NORM_FDBK_M_SHIFT 24 -#define PLL_NORM_FDBK_M_MASK 0xFF -#define PLL_DITH_FDBK_M_SHIFT 16 -#define PLL_DITH_FDBK_M_MASK 0xFFFF - -#define PLL2_MOD (MISC_BASE + 0x01C) -#define PLL_CLK_CFG (MISC_BASE + 0x020) -#define CORE_CLK_CFG (MISC_BASE + 0x024) -/* CORE CLK CFG register masks */ -#define PLL_HCLK_RATIO_SHIFT 10 -#define PLL_HCLK_RATIO_MASK 0x3 -#define HCLK_PCLK_RATIO_SHIFT 8 -#define HCLK_PCLK_RATIO_MASK 0x3 - -#define PERIP_CLK_CFG (MISC_BASE + 0x028) -/* PERIP_CLK_CFG register masks */ -#define UART_CLK_SHIFT 4 -#define UART_CLK_MASK 0x1 -#define FIRDA_CLK_SHIFT 5 -#define FIRDA_CLK_MASK 0x3 -#define GPT0_CLK_SHIFT 8 -#define GPT1_CLK_SHIFT 11 -#define GPT2_CLK_SHIFT 12 -#define GPT_CLK_MASK 0x1 -#define AUX_CLK_PLL3_VAL 0 -#define AUX_CLK_PLL1_VAL 1 - -#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) -/* PERIP1_CLK_ENB register masks */ -#define UART_CLK_ENB 3 -#define SSP_CLK_ENB 5 -#define I2C_CLK_ENB 7 -#define JPEG_CLK_ENB 8 -#define FIRDA_CLK_ENB 10 -#define GPT1_CLK_ENB 11 -#define GPT2_CLK_ENB 12 -#define ADC_CLK_ENB 15 -#define RTC_CLK_ENB 17 -#define GPIO_CLK_ENB 18 -#define DMA_CLK_ENB 19 -#define SMI_CLK_ENB 21 -#define GMAC_CLK_ENB 23 -#define USBD_CLK_ENB 24 -#define USBH_CLK_ENB 25 -#define C3_CLK_ENB 31 - -#define SOC_CORE_ID (MISC_BASE + 0x030) -#define RAS_CLK_ENB (MISC_BASE + 0x034) -#define PERIP1_SOF_RST (MISC_BASE + 0x038) -/* PERIP1_SOF_RST register masks */ -#define JPEG_SOF_RST 8 - -#define SOC_USER_ID (MISC_BASE + 0x03C) -#define RAS_SOF_RST (MISC_BASE + 0x040) -#define PRSC1_CLK_CFG (MISC_BASE + 0x044) -#define PRSC2_CLK_CFG (MISC_BASE + 0x048) -#define PRSC3_CLK_CFG (MISC_BASE + 0x04C) -/* gpt synthesizer register masks */ -#define GPT_MSCALE_SHIFT 0 -#define GPT_MSCALE_MASK 0xFFF -#define GPT_NSCALE_SHIFT 12 -#define GPT_NSCALE_MASK 0xF - -#define AMEM_CLK_CFG (MISC_BASE + 0x050) -#define EXPI_CLK_CFG (MISC_BASE + 0x054) -#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) -#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) -#define UART_CLK_SYNT (MISC_BASE + 0x064) -#define GMAC_CLK_SYNT (MISC_BASE + 0x068) -#define RAS1_CLK_SYNT (MISC_BASE + 0x06C) -#define RAS2_CLK_SYNT (MISC_BASE + 0x070) -#define RAS3_CLK_SYNT (MISC_BASE + 0x074) -#define RAS4_CLK_SYNT (MISC_BASE + 0x078) -/* aux clk synthesiser register masks for irda to ras4 */ -#define AUX_SYNT_ENB 31 -#define AUX_EQ_SEL_SHIFT 30 -#define AUX_EQ_SEL_MASK 1 -#define AUX_EQ1_SEL 0 -#define AUX_EQ2_SEL 1 -#define AUX_XSCALE_SHIFT 16 -#define AUX_XSCALE_MASK 0xFFF -#define AUX_YSCALE_SHIFT 0 -#define AUX_YSCALE_MASK 0xFFF - -#define ICM1_ARB_CFG (MISC_BASE + 0x07C) -#define ICM2_ARB_CFG (MISC_BASE + 0x080) -#define ICM3_ARB_CFG (MISC_BASE + 0x084) -#define ICM4_ARB_CFG (MISC_BASE + 0x088) -#define ICM5_ARB_CFG (MISC_BASE + 0x08C) -#define ICM6_ARB_CFG (MISC_BASE + 0x090) -#define ICM7_ARB_CFG (MISC_BASE + 0x094) -#define ICM8_ARB_CFG (MISC_BASE + 0x098) -#define ICM9_ARB_CFG (MISC_BASE + 0x09C) -#define DMA_CHN_CFG (MISC_BASE + 0x0A0) -#define USB2_PHY_CFG (MISC_BASE + 0x0A4) -#define GMAC_CFG_CTR (MISC_BASE + 0x0A8) -#define EXPI_CFG_CTR (MISC_BASE + 0x0AC) -#define PRC1_LOCK_CTR (MISC_BASE + 0x0C0) -#define PRC2_LOCK_CTR (MISC_BASE + 0x0C4) -#define PRC3_LOCK_CTR (MISC_BASE + 0x0C8) -#define PRC4_LOCK_CTR (MISC_BASE + 0x0CC) -#define PRC1_IRQ_CTR (MISC_BASE + 0x0D0) -#define PRC2_IRQ_CTR (MISC_BASE + 0x0D4) -#define PRC3_IRQ_CTR (MISC_BASE + 0x0D8) -#define PRC4_IRQ_CTR (MISC_BASE + 0x0DC) -#define PWRDOWN_CFG_CTR (MISC_BASE + 0x0E0) -#define COMPSSTL_1V8_CFG (MISC_BASE + 0x0E4) -#define COMPSSTL_2V5_CFG (MISC_BASE + 0x0E8) -#define COMPCOR_3V3_CFG (MISC_BASE + 0x0EC) -#define SSTLPAD_CFG_CTR (MISC_BASE + 0x0F0) -#define BIST1_CFG_CTR (MISC_BASE + 0x0F4) -#define BIST2_CFG_CTR (MISC_BASE + 0x0F8) -#define BIST3_CFG_CTR (MISC_BASE + 0x0FC) -#define BIST4_CFG_CTR (MISC_BASE + 0x100) -#define BIST5_CFG_CTR (MISC_BASE + 0x104) -#define BIST1_STS_RES (MISC_BASE + 0x108) -#define BIST2_STS_RES (MISC_BASE + 0x10C) -#define BIST3_STS_RES (MISC_BASE + 0x110) -#define BIST4_STS_RES (MISC_BASE + 0x114) -#define BIST5_STS_RES (MISC_BASE + 0x118) -#define SYSERR_CFG_CTR (MISC_BASE + 0x11C) - #endif /* __MACH_MISC_REGS_H */ diff --git a/arch/arm/mach-spear3xx/include/mach/spear.h b/arch/arm/mach-spear3xx/include/mach/spear.h index 8e3900aa0d45..e7bc8bab83fe 100644 --- a/arch/arm/mach-spear3xx/include/mach/spear.h +++ b/arch/arm/mach-spear3xx/include/mach/spear.h @@ -79,4 +79,17 @@ #define SPEAR_SYS_CTRL_BASE SPEAR3XX_ICM3_SYS_CTRL_BASE #define VA_SPEAR_SYS_CTRL_BASE VA_SPEAR3XX_ICM3_SYS_CTRL_BASE +/* SPEAr320 Macros */ +#define SPEAR320_SOC_CONFIG_BASE UL(0xB3000000) +#define VA_SPEAR320_SOC_CONFIG_BASE UL(0xFE000000) +#define SPEAR320_CONTROL_REG IOMEM(VA_SPEAR320_SOC_CONFIG_BASE) +#define SPEAR320_EXT_CTRL_REG IOMEM(VA_SPEAR320_SOC_CONFIG_BASE + 0x0018) + #define SPEAR320_UARTX_PCLK_MASK 0x1 + #define SPEAR320_UART2_PCLK_SHIFT 8 + #define SPEAR320_UART3_PCLK_SHIFT 9 + #define SPEAR320_UART4_PCLK_SHIFT 10 + #define SPEAR320_UART5_PCLK_SHIFT 11 + #define SPEAR320_UART6_PCLK_SHIFT 12 + #define SPEAR320_RS485_PCLK_SHIFT 13 + #endif /* __MACH_SPEAR3XX_H */ diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c index 4812c692ca35..fb28c189688e 100644 --- a/arch/arm/mach-spear3xx/spear320.c +++ b/arch/arm/mach-spear3xx/spear320.c @@ -22,6 +22,7 @@ #include <plat/shirq.h> #include <mach/generic.h> #include <mach/hardware.h> +#include <mach/spear.h> /* spear3xx shared irq */ static struct shirq_dev_config shirq_ras1_config[] = { diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index 12bf879a9ef1..71927c717807 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -90,6 +90,8 @@ static void __init spear3xx_timer_init(void) char pclk_name[] = "pll3_48m_clk"; struct clk *gpt_clk, *pclk; + spear3xx_clk_init(); + /* get the system timer clock */ gpt_clk = clk_get_sys("gpt0", NULL); if (IS_ERR(gpt_clk)) { diff --git a/arch/arm/mach-spear6xx/Makefile b/arch/arm/mach-spear6xx/Makefile index 76e5750552fc..898831d93f37 100644 --- a/arch/arm/mach-spear6xx/Makefile +++ b/arch/arm/mach-spear6xx/Makefile @@ -3,4 +3,4 @@ # # common files -obj-y += clock.o spear6xx.o +obj-y += spear6xx.o diff --git a/arch/arm/mach-spear6xx/clock.c b/arch/arm/mach-spear6xx/clock.c deleted file mode 100644 index adadef2b27b4..000000000000 --- a/arch/arm/mach-spear6xx/clock.c +++ /dev/null @@ -1,683 +0,0 @@ -/* - * arch/arm/mach-spear6xx/clock.c - * - * SPEAr6xx machines clock framework source file - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/init.h> -#include <linux/io.h> -#include <linux/kernel.h> -#include <plat/clock.h> -#include <mach/misc_regs.h> - -/* root clks */ -/* 32 KHz oscillator clock */ -static struct clk osc_32k_clk = { - .flags = ALWAYS_ENABLED, - .rate = 32000, -}; - -/* 30 MHz oscillator clock */ -static struct clk osc_30m_clk = { - .flags = ALWAYS_ENABLED, - .rate = 30000000, -}; - -/* clock derived from 32 KHz osc clk */ -/* rtc clock */ -static struct clk rtc_clk = { - .pclk = &osc_32k_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = RTC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from 30 MHz osc clk */ -/* pll masks structure */ -static struct pll_clk_masks pll1_masks = { - .mode_mask = PLL_MODE_MASK, - .mode_shift = PLL_MODE_SHIFT, - .norm_fdbk_m_mask = PLL_NORM_FDBK_M_MASK, - .norm_fdbk_m_shift = PLL_NORM_FDBK_M_SHIFT, - .dith_fdbk_m_mask = PLL_DITH_FDBK_M_MASK, - .dith_fdbk_m_shift = PLL_DITH_FDBK_M_SHIFT, - .div_p_mask = PLL_DIV_P_MASK, - .div_p_shift = PLL_DIV_P_SHIFT, - .div_n_mask = PLL_DIV_N_MASK, - .div_n_shift = PLL_DIV_N_SHIFT, -}; - -/* pll1 configuration structure */ -static struct pll_clk_config pll1_config = { - .mode_reg = PLL1_CTR, - .cfg_reg = PLL1_FRQ, - .masks = &pll1_masks, -}; - -/* pll rate configuration table, in ascending order of rates */ -struct pll_rate_tbl pll_rtbl[] = { - {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* 266 MHz */ - {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* 332 MHz */ -}; - -/* PLL1 clock */ -static struct clk pll1_clk = { - .flags = ENABLED_ON_INIT, - .pclk = &osc_30m_clk, - .en_reg = PLL1_CTR, - .en_reg_bit = PLL_ENABLE, - .calc_rate = &pll_calc_rate, - .recalc = &pll_clk_recalc, - .set_rate = &pll_clk_set_rate, - .rate_config = {pll_rtbl, ARRAY_SIZE(pll_rtbl), 1}, - .private_data = &pll1_config, -}; - -/* PLL3 48 MHz clock */ -static struct clk pll3_48m_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_30m_clk, - .rate = 48000000, -}; - -/* watch dog timer clock */ -static struct clk wdt_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &osc_30m_clk, - .recalc = &follow_parent, -}; - -/* clock derived from pll1 clk */ -/* cpu clock */ -static struct clk cpu_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .recalc = &follow_parent, -}; - -/* ahb masks structure */ -static struct bus_clk_masks ahb_masks = { - .mask = PLL_HCLK_RATIO_MASK, - .shift = PLL_HCLK_RATIO_SHIFT, -}; - -/* ahb configuration structure */ -static struct bus_clk_config ahb_config = { - .reg = CORE_CLK_CFG, - .masks = &ahb_masks, -}; - -/* ahb rate configuration table, in ascending order of rates */ -struct bus_rate_tbl bus_rtbl[] = { - {.div = 3}, /* == parent divided by 4 */ - {.div = 2}, /* == parent divided by 3 */ - {.div = 1}, /* == parent divided by 2 */ - {.div = 0}, /* == parent divided by 1 */ -}; - -/* ahb clock */ -static struct clk ahb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &ahb_config, -}; - -/* auxiliary synthesizers masks */ -static struct aux_clk_masks aux_masks = { - .eq_sel_mask = AUX_EQ_SEL_MASK, - .eq_sel_shift = AUX_EQ_SEL_SHIFT, - .eq1_mask = AUX_EQ1_SEL, - .eq2_mask = AUX_EQ2_SEL, - .xscale_sel_mask = AUX_XSCALE_MASK, - .xscale_sel_shift = AUX_XSCALE_SHIFT, - .yscale_sel_mask = AUX_YSCALE_MASK, - .yscale_sel_shift = AUX_YSCALE_SHIFT, -}; - -/* uart configurations */ -static struct aux_clk_config uart_synth_config = { - .synth_reg = UART_CLK_SYNT, - .masks = &aux_masks, -}; - -/* aux rate configuration table, in ascending order of rates */ -struct aux_rate_tbl aux_rtbl[] = { - /* For PLL1 = 332 MHz */ - {.xscale = 1, .yscale = 8, .eq = 1}, /* 41.5 MHz */ - {.xscale = 1, .yscale = 4, .eq = 1}, /* 83 MHz */ - {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ -}; - -/* uart synth clock */ -static struct clk uart_synth_clk = { - .en_reg = UART_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &uart_synth_config, -}; - -/* uart parents */ -static struct pclk_info uart_pclk_info[] = { - { - .pclk = &uart_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* uart parent select structure */ -static struct pclk_sel uart_pclk_sel = { - .pclk_info = uart_pclk_info, - .pclk_count = ARRAY_SIZE(uart_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = UART_CLK_MASK, -}; - -/* uart0 clock */ -static struct clk uart0_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART0_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* uart1 clock */ -static struct clk uart1_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = UART1_CLK_ENB, - .pclk_sel = &uart_pclk_sel, - .pclk_sel_shift = UART_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* firda configurations */ -static struct aux_clk_config firda_synth_config = { - .synth_reg = FIRDA_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk firda_synth_clk = { - .en_reg = FIRDA_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &firda_synth_config, -}; - -/* firda parents */ -static struct pclk_info firda_pclk_info[] = { - { - .pclk = &firda_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* firda parent select structure */ -static struct pclk_sel firda_pclk_sel = { - .pclk_info = firda_pclk_info, - .pclk_count = ARRAY_SIZE(firda_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = FIRDA_CLK_MASK, -}; - -/* firda clock */ -static struct clk firda_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FIRDA_CLK_ENB, - .pclk_sel = &firda_pclk_sel, - .pclk_sel_shift = FIRDA_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clcd configurations */ -static struct aux_clk_config clcd_synth_config = { - .synth_reg = CLCD_CLK_SYNT, - .masks = &aux_masks, -}; - -/* firda synth clock */ -static struct clk clcd_synth_clk = { - .en_reg = CLCD_CLK_SYNT, - .en_reg_bit = AUX_SYNT_ENB, - .pclk = &pll1_clk, - .calc_rate = &aux_calc_rate, - .recalc = &aux_clk_recalc, - .set_rate = &aux_clk_set_rate, - .rate_config = {aux_rtbl, ARRAY_SIZE(aux_rtbl), 2}, - .private_data = &clcd_synth_config, -}; - -/* clcd parents */ -static struct pclk_info clcd_pclk_info[] = { - { - .pclk = &clcd_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* clcd parent select structure */ -static struct pclk_sel clcd_pclk_sel = { - .pclk_info = clcd_pclk_info, - .pclk_count = ARRAY_SIZE(clcd_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = CLCD_CLK_MASK, -}; - -/* clcd clock */ -static struct clk clcd_clk = { - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = CLCD_CLK_ENB, - .pclk_sel = &clcd_pclk_sel, - .pclk_sel_shift = CLCD_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt synthesizer masks */ -static struct gpt_clk_masks gpt_masks = { - .mscale_sel_mask = GPT_MSCALE_MASK, - .mscale_sel_shift = GPT_MSCALE_SHIFT, - .nscale_sel_mask = GPT_NSCALE_MASK, - .nscale_sel_shift = GPT_NSCALE_SHIFT, -}; - -/* gpt rate configuration table, in ascending order of rates */ -struct gpt_rate_tbl gpt_rtbl[] = { - /* For pll1 = 332 MHz */ - {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ - {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ - {.mscale = 1, .nscale = 0}, /* 83 MHz */ -}; - -/* gpt0 synth clk config*/ -static struct gpt_clk_config gpt0_synth_config = { - .synth_reg = PRSC1_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt0_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt0_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt0_pclk_info[] = { - { - .pclk = &gpt0_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt0_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt0 ARM1 subsystem timer clock */ -static struct clk gpt0_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt0_pclk_sel, - .pclk_sel_shift = GPT0_CLK_SHIFT, - .recalc = &follow_parent, -}; - - -/* Note: gpt0 and gpt1 share same parent clocks */ -/* gpt parent select structure */ -static struct pclk_sel gpt1_pclk_sel = { - .pclk_info = gpt0_pclk_info, - .pclk_count = ARRAY_SIZE(gpt0_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt1 timer clock */ -static struct clk gpt1_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt1_pclk_sel, - .pclk_sel_shift = GPT1_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt2 synth clk config*/ -static struct gpt_clk_config gpt2_synth_config = { - .synth_reg = PRSC2_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt2_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt2_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt2_pclk_info[] = { - { - .pclk = &gpt2_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt2_pclk_sel = { - .pclk_info = gpt2_pclk_info, - .pclk_count = ARRAY_SIZE(gpt2_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt2 timer clock */ -static struct clk gpt2_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt2_pclk_sel, - .pclk_sel_shift = GPT2_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* gpt3 synth clk config*/ -static struct gpt_clk_config gpt3_synth_config = { - .synth_reg = PRSC3_CLK_CFG, - .masks = &gpt_masks, -}; - -/* gpt synth clock */ -static struct clk gpt3_synth_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &pll1_clk, - .calc_rate = &gpt_calc_rate, - .recalc = &gpt_clk_recalc, - .set_rate = &gpt_clk_set_rate, - .rate_config = {gpt_rtbl, ARRAY_SIZE(gpt_rtbl), 2}, - .private_data = &gpt3_synth_config, -}; - -/* gpt parents */ -static struct pclk_info gpt3_pclk_info[] = { - { - .pclk = &gpt3_synth_clk, - .pclk_val = AUX_CLK_PLL1_VAL, - }, { - .pclk = &pll3_48m_clk, - .pclk_val = AUX_CLK_PLL3_VAL, - }, -}; - -/* gpt parent select structure */ -static struct pclk_sel gpt3_pclk_sel = { - .pclk_info = gpt3_pclk_info, - .pclk_count = ARRAY_SIZE(gpt3_pclk_info), - .pclk_sel_reg = PERIP_CLK_CFG, - .pclk_sel_mask = GPT_CLK_MASK, -}; - -/* gpt3 timer clock */ -static struct clk gpt3_clk = { - .flags = ALWAYS_ENABLED, - .pclk_sel = &gpt3_pclk_sel, - .pclk_sel_shift = GPT3_CLK_SHIFT, - .recalc = &follow_parent, -}; - -/* clock derived from pll3 clk */ -/* usbh0 clock */ -static struct clk usbh0_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH0_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbh1 clock */ -static struct clk usbh1_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBH1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* usbd clock */ -static struct clk usbd_clk = { - .pclk = &pll3_48m_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = USBD_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from ahb clk */ -/* apb masks structure */ -static struct bus_clk_masks apb_masks = { - .mask = HCLK_PCLK_RATIO_MASK, - .shift = HCLK_PCLK_RATIO_SHIFT, -}; - -/* apb configuration structure */ -static struct bus_clk_config apb_config = { - .reg = CORE_CLK_CFG, - .masks = &apb_masks, -}; - -/* apb clock */ -static struct clk apb_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &ahb_clk, - .calc_rate = &bus_calc_rate, - .recalc = &bus_clk_recalc, - .set_rate = &bus_clk_set_rate, - .rate_config = {bus_rtbl, ARRAY_SIZE(bus_rtbl), 2}, - .private_data = &apb_config, -}; - -/* i2c clock */ -static struct clk i2c_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = I2C_CLK_ENB, - .recalc = &follow_parent, -}; - -/* dma clock */ -static struct clk dma_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = DMA_CLK_ENB, - .recalc = &follow_parent, -}; - -/* jpeg clock */ -static struct clk jpeg_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = JPEG_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gmac clock */ -static struct clk gmac_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GMAC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* smi clock */ -static struct clk smi_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SMI_CLK_ENB, - .recalc = &follow_parent, -}; - -/* fsmc clock */ -static struct clk fsmc_clk = { - .pclk = &ahb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = FSMC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* clock derived from apb clk */ -/* adc clock */ -static struct clk adc_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = ADC_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp0 clock */ -static struct clk ssp0_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP0_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp1 clock */ -static struct clk ssp1_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* ssp2 clock */ -static struct clk ssp2_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = SSP2_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio0 ARM subsystem clock */ -static struct clk gpio0_clk = { - .flags = ALWAYS_ENABLED, - .pclk = &apb_clk, - .recalc = &follow_parent, -}; - -/* gpio1 clock */ -static struct clk gpio1_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO1_CLK_ENB, - .recalc = &follow_parent, -}; - -/* gpio2 clock */ -static struct clk gpio2_clk = { - .pclk = &apb_clk, - .en_reg = PERIP1_CLK_ENB, - .en_reg_bit = GPIO2_CLK_ENB, - .recalc = &follow_parent, -}; - -static struct clk dummy_apb_pclk; - -/* array of all spear 6xx clock lookups */ -static struct clk_lookup spear_clk_lookups[] = { - CLKDEV_INIT(NULL, "apb_pclk", &dummy_apb_pclk), - /* root clks */ - CLKDEV_INIT(NULL, "osc_32k_clk", &osc_32k_clk), - CLKDEV_INIT(NULL, "osc_30m_clk", &osc_30m_clk), - /* clock derived from 32 KHz os clk */ - CLKDEV_INIT("rtc-spear", NULL, &rtc_clk), - /* clock derived from 30 MHz os clk */ - CLKDEV_INIT(NULL, "pll1_clk", &pll1_clk), - CLKDEV_INIT(NULL, "pll3_48m_clk", &pll3_48m_clk), - CLKDEV_INIT("wdt", NULL, &wdt_clk), - /* clock derived from pll1 clk */ - CLKDEV_INIT(NULL, "cpu_clk", &cpu_clk), - CLKDEV_INIT(NULL, "ahb_clk", &ahb_clk), - CLKDEV_INIT(NULL, "uart_synth_clk", &uart_synth_clk), - CLKDEV_INIT(NULL, "firda_synth_clk", &firda_synth_clk), - CLKDEV_INIT(NULL, "clcd_synth_clk", &clcd_synth_clk), - CLKDEV_INIT(NULL, "gpt0_synth_clk", &gpt0_synth_clk), - CLKDEV_INIT(NULL, "gpt2_synth_clk", &gpt2_synth_clk), - CLKDEV_INIT(NULL, "gpt3_synth_clk", &gpt3_synth_clk), - CLKDEV_INIT("d0000000.serial", NULL, &uart0_clk), - CLKDEV_INIT("d0080000.serial", NULL, &uart1_clk), - CLKDEV_INIT("firda", NULL, &firda_clk), - CLKDEV_INIT("clcd", NULL, &clcd_clk), - CLKDEV_INIT("gpt0", NULL, &gpt0_clk), - CLKDEV_INIT("gpt1", NULL, &gpt1_clk), - CLKDEV_INIT("gpt2", NULL, &gpt2_clk), - CLKDEV_INIT("gpt3", NULL, &gpt3_clk), - /* clock derived from pll3 clk */ - CLKDEV_INIT("designware_udc", NULL, &usbd_clk), - CLKDEV_INIT(NULL, "usbh.0_clk", &usbh0_clk), - CLKDEV_INIT(NULL, "usbh.1_clk", &usbh1_clk), - /* clock derived from ahb clk */ - CLKDEV_INIT(NULL, "apb_clk", &apb_clk), - CLKDEV_INIT("d0200000.i2c", NULL, &i2c_clk), - CLKDEV_INIT("fc400000.dma", NULL, &dma_clk), - CLKDEV_INIT("jpeg", NULL, &jpeg_clk), - CLKDEV_INIT("gmac", NULL, &gmac_clk), - CLKDEV_INIT("fc000000.flash", NULL, &smi_clk), - CLKDEV_INIT("d1800000.flash", NULL, &fsmc_clk), - /* clock derived from apb clk */ - CLKDEV_INIT("adc", NULL, &adc_clk), - CLKDEV_INIT("ssp-pl022.0", NULL, &ssp0_clk), - CLKDEV_INIT("ssp-pl022.1", NULL, &ssp1_clk), - CLKDEV_INIT("ssp-pl022.2", NULL, &ssp2_clk), - CLKDEV_INIT("f0100000.gpio", NULL, &gpio0_clk), - CLKDEV_INIT("fc980000.gpio", NULL, &gpio1_clk), - CLKDEV_INIT("d8100000.gpio", NULL, &gpio2_clk), -}; - -void __init spear6xx_clk_init(void) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(spear_clk_lookups); i++) - clk_register(&spear_clk_lookups[i]); - - clk_init(); -} diff --git a/arch/arm/mach-spear6xx/include/mach/misc_regs.h b/arch/arm/mach-spear6xx/include/mach/misc_regs.h index 68c20a007b0d..633074fddf9a 100644 --- a/arch/arm/mach-spear6xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear6xx/include/mach/misc_regs.h @@ -15,160 +15,8 @@ #define __MACH_MISC_REGS_H #include <mach/hardware.h> +#include <mach/spear.h> #define MISC_BASE IOMEM(VA_SPEAR6XX_ICM3_MISC_REG_BASE) -#define SOC_CFG_CTR (MISC_BASE + 0x000) -#define DIAG_CFG_CTR (MISC_BASE + 0x004) -#define PLL1_CTR (MISC_BASE + 0x008) -#define PLL1_FRQ (MISC_BASE + 0x00C) -#define PLL1_MOD (MISC_BASE + 0x010) -#define PLL2_CTR (MISC_BASE + 0x014) -/* PLL_CTR register masks */ -#define PLL_ENABLE 2 -#define PLL_MODE_SHIFT 4 -#define PLL_MODE_MASK 0x3 -#define PLL_MODE_NORMAL 0 -#define PLL_MODE_FRACTION 1 -#define PLL_MODE_DITH_DSB 2 -#define PLL_MODE_DITH_SSB 3 - -#define PLL2_FRQ (MISC_BASE + 0x018) -/* PLL FRQ register masks */ -#define PLL_DIV_N_SHIFT 0 -#define PLL_DIV_N_MASK 0xFF -#define PLL_DIV_P_SHIFT 8 -#define PLL_DIV_P_MASK 0x7 -#define PLL_NORM_FDBK_M_SHIFT 24 -#define PLL_NORM_FDBK_M_MASK 0xFF -#define PLL_DITH_FDBK_M_SHIFT 16 -#define PLL_DITH_FDBK_M_MASK 0xFFFF - -#define PLL2_MOD (MISC_BASE + 0x01C) -#define PLL_CLK_CFG (MISC_BASE + 0x020) -#define CORE_CLK_CFG (MISC_BASE + 0x024) -/* CORE CLK CFG register masks */ -#define PLL_HCLK_RATIO_SHIFT 10 -#define PLL_HCLK_RATIO_MASK 0x3 -#define HCLK_PCLK_RATIO_SHIFT 8 -#define HCLK_PCLK_RATIO_MASK 0x3 - -#define PERIP_CLK_CFG (MISC_BASE + 0x028) -/* PERIP_CLK_CFG register masks */ -#define CLCD_CLK_SHIFT 2 -#define CLCD_CLK_MASK 0x3 -#define UART_CLK_SHIFT 4 -#define UART_CLK_MASK 0x1 -#define FIRDA_CLK_SHIFT 5 -#define FIRDA_CLK_MASK 0x3 -#define GPT0_CLK_SHIFT 8 -#define GPT1_CLK_SHIFT 10 -#define GPT2_CLK_SHIFT 11 -#define GPT3_CLK_SHIFT 12 -#define GPT_CLK_MASK 0x1 -#define AUX_CLK_PLL3_VAL 0 -#define AUX_CLK_PLL1_VAL 1 - -#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) -/* PERIP1_CLK_ENB register masks */ -#define UART0_CLK_ENB 3 -#define UART1_CLK_ENB 4 -#define SSP0_CLK_ENB 5 -#define SSP1_CLK_ENB 6 -#define I2C_CLK_ENB 7 -#define JPEG_CLK_ENB 8 -#define FSMC_CLK_ENB 9 -#define FIRDA_CLK_ENB 10 -#define GPT2_CLK_ENB 11 -#define GPT3_CLK_ENB 12 -#define GPIO2_CLK_ENB 13 -#define SSP2_CLK_ENB 14 -#define ADC_CLK_ENB 15 -#define GPT1_CLK_ENB 11 -#define RTC_CLK_ENB 17 -#define GPIO1_CLK_ENB 18 -#define DMA_CLK_ENB 19 -#define SMI_CLK_ENB 21 -#define CLCD_CLK_ENB 22 -#define GMAC_CLK_ENB 23 -#define USBD_CLK_ENB 24 -#define USBH0_CLK_ENB 25 -#define USBH1_CLK_ENB 26 - -#define SOC_CORE_ID (MISC_BASE + 0x030) -#define RAS_CLK_ENB (MISC_BASE + 0x034) -#define PERIP1_SOF_RST (MISC_BASE + 0x038) -/* PERIP1_SOF_RST register masks */ -#define JPEG_SOF_RST 8 - -#define SOC_USER_ID (MISC_BASE + 0x03C) -#define RAS_SOF_RST (MISC_BASE + 0x040) -#define PRSC1_CLK_CFG (MISC_BASE + 0x044) -#define PRSC2_CLK_CFG (MISC_BASE + 0x048) -#define PRSC3_CLK_CFG (MISC_BASE + 0x04C) -/* gpt synthesizer register masks */ -#define GPT_MSCALE_SHIFT 0 -#define GPT_MSCALE_MASK 0xFFF -#define GPT_NSCALE_SHIFT 12 -#define GPT_NSCALE_MASK 0xF - -#define AMEM_CLK_CFG (MISC_BASE + 0x050) -#define EXPI_CLK_CFG (MISC_BASE + 0x054) -#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) -#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) -#define UART_CLK_SYNT (MISC_BASE + 0x064) -#define GMAC_CLK_SYNT (MISC_BASE + 0x068) -#define RAS1_CLK_SYNT (MISC_BASE + 0x06C) -#define RAS2_CLK_SYNT (MISC_BASE + 0x070) -#define RAS3_CLK_SYNT (MISC_BASE + 0x074) -#define RAS4_CLK_SYNT (MISC_BASE + 0x078) -/* aux clk synthesiser register masks for irda to ras4 */ -#define AUX_SYNT_ENB 31 -#define AUX_EQ_SEL_SHIFT 30 -#define AUX_EQ_SEL_MASK 1 -#define AUX_EQ1_SEL 0 -#define AUX_EQ2_SEL 1 -#define AUX_XSCALE_SHIFT 16 -#define AUX_XSCALE_MASK 0xFFF -#define AUX_YSCALE_SHIFT 0 -#define AUX_YSCALE_MASK 0xFFF - -#define ICM1_ARB_CFG (MISC_BASE + 0x07C) -#define ICM2_ARB_CFG (MISC_BASE + 0x080) -#define ICM3_ARB_CFG (MISC_BASE + 0x084) -#define ICM4_ARB_CFG (MISC_BASE + 0x088) -#define ICM5_ARB_CFG (MISC_BASE + 0x08C) -#define ICM6_ARB_CFG (MISC_BASE + 0x090) -#define ICM7_ARB_CFG (MISC_BASE + 0x094) -#define ICM8_ARB_CFG (MISC_BASE + 0x098) -#define ICM9_ARB_CFG (MISC_BASE + 0x09C) -#define DMA_CHN_CFG (MISC_BASE + 0x0A0) -#define USB2_PHY_CFG (MISC_BASE + 0x0A4) -#define GMAC_CFG_CTR (MISC_BASE + 0x0A8) -#define EXPI_CFG_CTR (MISC_BASE + 0x0AC) -#define PRC1_LOCK_CTR (MISC_BASE + 0x0C0) -#define PRC2_LOCK_CTR (MISC_BASE + 0x0C4) -#define PRC3_LOCK_CTR (MISC_BASE + 0x0C8) -#define PRC4_LOCK_CTR (MISC_BASE + 0x0CC) -#define PRC1_IRQ_CTR (MISC_BASE + 0x0D0) -#define PRC2_IRQ_CTR (MISC_BASE + 0x0D4) -#define PRC3_IRQ_CTR (MISC_BASE + 0x0D8) -#define PRC4_IRQ_CTR (MISC_BASE + 0x0DC) -#define PWRDOWN_CFG_CTR (MISC_BASE + 0x0E0) -#define COMPSSTL_1V8_CFG (MISC_BASE + 0x0E4) -#define COMPSSTL_2V5_CFG (MISC_BASE + 0x0E8) -#define COMPCOR_3V3_CFG (MISC_BASE + 0x0EC) -#define SSTLPAD_CFG_CTR (MISC_BASE + 0x0F0) -#define BIST1_CFG_CTR (MISC_BASE + 0x0F4) -#define BIST2_CFG_CTR (MISC_BASE + 0x0F8) -#define BIST3_CFG_CTR (MISC_BASE + 0x0FC) -#define BIST4_CFG_CTR (MISC_BASE + 0x100) -#define BIST5_CFG_CTR (MISC_BASE + 0x104) -#define BIST1_STS_RES (MISC_BASE + 0x108) -#define BIST2_STS_RES (MISC_BASE + 0x10C) -#define BIST3_STS_RES (MISC_BASE + 0x110) -#define BIST4_STS_RES (MISC_BASE + 0x114) -#define BIST5_STS_RES (MISC_BASE + 0x118) -#define SYSERR_CFG_CTR (MISC_BASE + 0x11C) - #endif /* __MACH_MISC_REGS_H */ diff --git a/arch/arm/mach-spear6xx/spear6xx.c b/arch/arm/mach-spear6xx/spear6xx.c index 5b9e30f54cdb..e9031ec6d6e0 100644 --- a/arch/arm/mach-spear6xx/spear6xx.c +++ b/arch/arm/mach-spear6xx/spear6xx.c @@ -418,9 +418,6 @@ static struct map_desc spear6xx_io_desc[] __initdata = { void __init spear6xx_map_io(void) { iotable_init(spear6xx_io_desc, ARRAY_SIZE(spear6xx_io_desc)); - - /* This will initialize clock framework */ - spear6xx_clk_init(); } static void __init spear6xx_timer_init(void) @@ -428,6 +425,8 @@ static void __init spear6xx_timer_init(void) char pclk_name[] = "pll3_48m_clk"; struct clk *gpt_clk, *pclk; + spear6xx_clk_init(); + /* get the system timer clock */ gpt_clk = clk_get_sys("gpt0", NULL); if (IS_ERR(gpt_clk)) { diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig index 880d02ec89d4..ef7099eea0f2 100644 --- a/arch/arm/mach-ux500/Kconfig +++ b/arch/arm/mach-ux500/Kconfig @@ -17,6 +17,7 @@ config UX500_SOC_DB5500 config UX500_SOC_DB8500 bool select MFD_DB8500_PRCMU + select REGULATOR select REGULATOR_DB8500_PRCMU select CPU_FREQ_TABLE if CPU_FREQ diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c index d2058ef8345f..eff5842f6232 100644 --- a/arch/arm/mach-ux500/platsmp.c +++ b/arch/arm/mach-ux500/platsmp.c @@ -99,7 +99,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) */ write_pen_release(cpu_logical_map(cpu)); - gic_raise_softirq(cpumask_of(cpu), 1); + smp_send_reschedule(cpu); timeout = jiffies + (1 * HZ); while (time_before(jiffies, timeout)) { diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h index 8070145ccb98..3f26db4ee8e6 100644 --- a/arch/arm/plat-omap/include/plat/omap_hwmod.h +++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h @@ -305,6 +305,7 @@ struct omap_hwmod_sysc_fields { * @rev_offs: IP block revision register offset (from module base addr) * @sysc_offs: OCP_SYSCONFIG register offset (from module base addr) * @syss_offs: OCP_SYSSTATUS register offset (from module base addr) + * @srst_udelay: Delay needed after doing a softreset in usecs * @idlemodes: One or more of {SIDLE,MSTANDBY}_{OFF,FORCE,SMART} * @sysc_flags: SYS{C,S}_HAS* flags indicating SYSCONFIG bits supported * @clockact: the default value of the module CLOCKACTIVITY bits @@ -330,9 +331,10 @@ struct omap_hwmod_class_sysconfig { u16 sysc_offs; u16 syss_offs; u16 sysc_flags; + struct omap_hwmod_sysc_fields *sysc_fields; + u8 srst_udelay; u8 idlemodes; u8 clockact; - struct omap_hwmod_sysc_fields *sysc_fields; }; /** diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c index eec98afa0f83..f9a8c5341ee9 100644 --- a/arch/arm/plat-omap/sram.c +++ b/arch/arm/plat-omap/sram.c @@ -348,7 +348,6 @@ u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, sdrc_actim_ctrl_b_1, sdrc_mr_1); } -#ifdef CONFIG_PM void omap3_sram_restore_context(void) { omap_sram_ceil = omap_sram_base + omap_sram_size; @@ -358,17 +357,18 @@ void omap3_sram_restore_context(void) omap3_sram_configure_core_dpll_sz); omap_push_sram_idle(); } -#endif /* CONFIG_PM */ - -#endif /* CONFIG_ARCH_OMAP3 */ static inline int omap34xx_sram_init(void) { -#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) omap3_sram_restore_context(); -#endif return 0; } +#else +static inline int omap34xx_sram_init(void) +{ + return 0; +} +#endif /* CONFIG_ARCH_OMAP3 */ static inline int am33xx_sram_init(void) { diff --git a/arch/arm/plat-spear/Makefile b/arch/arm/plat-spear/Makefile index 7744802c83e7..38f1235f4632 100644 --- a/arch/arm/plat-spear/Makefile +++ b/arch/arm/plat-spear/Makefile @@ -3,6 +3,6 @@ # # Common support -obj-y := clock.o restart.o time.o pl080.o +obj-y := restart.o time.o pl080.o obj-$(CONFIG_ARCH_SPEAR3XX) += shirq.o diff --git a/arch/arm/plat-spear/clock.c b/arch/arm/plat-spear/clock.c deleted file mode 100644 index 67dd00381ea6..000000000000 --- a/arch/arm/plat-spear/clock.c +++ /dev/null @@ -1,1005 +0,0 @@ -/* - * arch/arm/plat-spear/clock.c - * - * Clock framework for SPEAr platform - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/bug.h> -#include <linux/clk.h> -#include <linux/debugfs.h> -#include <linux/err.h> -#include <linux/io.h> -#include <linux/list.h> -#include <linux/module.h> -#include <linux/spinlock.h> -#include <plat/clock.h> - -static DEFINE_SPINLOCK(clocks_lock); -static LIST_HEAD(root_clks); -#ifdef CONFIG_DEBUG_FS -static LIST_HEAD(clocks); -#endif - -static void propagate_rate(struct clk *, int on_init); -#ifdef CONFIG_DEBUG_FS -static int clk_debugfs_reparent(struct clk *); -#endif - -static int generic_clk_enable(struct clk *clk) -{ - unsigned int val; - - if (!clk->en_reg) - return -EFAULT; - - val = readl(clk->en_reg); - if (unlikely(clk->flags & RESET_TO_ENABLE)) - val &= ~(1 << clk->en_reg_bit); - else - val |= 1 << clk->en_reg_bit; - - writel(val, clk->en_reg); - - return 0; -} - -static void generic_clk_disable(struct clk *clk) -{ - unsigned int val; - - if (!clk->en_reg) - return; - - val = readl(clk->en_reg); - if (unlikely(clk->flags & RESET_TO_ENABLE)) - val |= 1 << clk->en_reg_bit; - else - val &= ~(1 << clk->en_reg_bit); - - writel(val, clk->en_reg); -} - -/* generic clk ops */ -static struct clkops generic_clkops = { - .enable = generic_clk_enable, - .disable = generic_clk_disable, -}; - -/* returns current programmed clocks clock info structure */ -static struct pclk_info *pclk_info_get(struct clk *clk) -{ - unsigned int val, i; - struct pclk_info *info = NULL; - - val = (readl(clk->pclk_sel->pclk_sel_reg) >> clk->pclk_sel_shift) - & clk->pclk_sel->pclk_sel_mask; - - for (i = 0; i < clk->pclk_sel->pclk_count; i++) { - if (clk->pclk_sel->pclk_info[i].pclk_val == val) - info = &clk->pclk_sel->pclk_info[i]; - } - - return info; -} - -/* - * Set Update pclk, and pclk_info of clk and add clock sibling node to current - * parents children list - */ -static void clk_reparent(struct clk *clk, struct pclk_info *pclk_info) -{ - unsigned long flags; - - spin_lock_irqsave(&clocks_lock, flags); - list_del(&clk->sibling); - list_add(&clk->sibling, &pclk_info->pclk->children); - - clk->pclk = pclk_info->pclk; - spin_unlock_irqrestore(&clocks_lock, flags); - -#ifdef CONFIG_DEBUG_FS - clk_debugfs_reparent(clk); -#endif -} - -static void do_clk_disable(struct clk *clk) -{ - if (!clk) - return; - - if (!clk->usage_count) { - WARN_ON(1); - return; - } - - clk->usage_count--; - - if (clk->usage_count == 0) { - /* - * Surely, there are no active childrens or direct users - * of this clock - */ - if (clk->pclk) - do_clk_disable(clk->pclk); - - if (clk->ops && clk->ops->disable) - clk->ops->disable(clk); - } -} - -static int do_clk_enable(struct clk *clk) -{ - int ret = 0; - - if (!clk) - return -EFAULT; - - if (clk->usage_count == 0) { - if (clk->pclk) { - ret = do_clk_enable(clk->pclk); - if (ret) - goto err; - } - if (clk->ops && clk->ops->enable) { - ret = clk->ops->enable(clk); - if (ret) { - if (clk->pclk) - do_clk_disable(clk->pclk); - goto err; - } - } - /* - * Since the clock is going to be used for the first - * time please reclac - */ - if (clk->recalc) { - ret = clk->recalc(clk); - if (ret) - goto err; - } - } - clk->usage_count++; -err: - return ret; -} - -/* - * clk_enable - inform the system when the clock source should be running. - * @clk: clock source - * - * If the clock can not be enabled/disabled, this should return success. - * - * Returns success (0) or negative errno. - */ -int clk_enable(struct clk *clk) -{ - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&clocks_lock, flags); - ret = do_clk_enable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); - return ret; -} -EXPORT_SYMBOL(clk_enable); - -/* - * clk_disable - inform the system when the clock source is no longer required. - * @clk: clock source - * - * Inform the system that a clock source is no longer required by - * a driver and may be shut down. - * - * Implementation detail: if the clock source is shared between - * multiple drivers, clk_enable() calls must be balanced by the - * same number of clk_disable() calls for the clock source to be - * disabled. - */ -void clk_disable(struct clk *clk) -{ - unsigned long flags; - - spin_lock_irqsave(&clocks_lock, flags); - do_clk_disable(clk); - spin_unlock_irqrestore(&clocks_lock, flags); -} -EXPORT_SYMBOL(clk_disable); - -/** - * clk_get_rate - obtain the current clock rate (in Hz) for a clock source. - * This is only valid once the clock source has been enabled. - * @clk: clock source - */ -unsigned long clk_get_rate(struct clk *clk) -{ - unsigned long flags, rate; - - spin_lock_irqsave(&clocks_lock, flags); - rate = clk->rate; - spin_unlock_irqrestore(&clocks_lock, flags); - - return rate; -} -EXPORT_SYMBOL(clk_get_rate); - -/** - * clk_set_parent - set the parent clock source for this clock - * @clk: clock source - * @parent: parent clock source - * - * Returns success (0) or negative errno. - */ -int clk_set_parent(struct clk *clk, struct clk *parent) -{ - int i, found = 0, val = 0; - unsigned long flags; - - if (!clk || !parent) - return -EFAULT; - if (clk->pclk == parent) - return 0; - if (!clk->pclk_sel) - return -EPERM; - - /* check if requested parent is in clk parent list */ - for (i = 0; i < clk->pclk_sel->pclk_count; i++) { - if (clk->pclk_sel->pclk_info[i].pclk == parent) { - found = 1; - break; - } - } - - if (!found) - return -EINVAL; - - spin_lock_irqsave(&clocks_lock, flags); - /* reflect parent change in hardware */ - val = readl(clk->pclk_sel->pclk_sel_reg); - val &= ~(clk->pclk_sel->pclk_sel_mask << clk->pclk_sel_shift); - val |= clk->pclk_sel->pclk_info[i].pclk_val << clk->pclk_sel_shift; - writel(val, clk->pclk_sel->pclk_sel_reg); - spin_unlock_irqrestore(&clocks_lock, flags); - - /* reflect parent change in software */ - clk_reparent(clk, &clk->pclk_sel->pclk_info[i]); - - propagate_rate(clk, 0); - return 0; -} -EXPORT_SYMBOL(clk_set_parent); - -/** - * clk_set_rate - set the clock rate for a clock source - * @clk: clock source - * @rate: desired clock rate in Hz - * - * Returns success (0) or negative errno. - */ -int clk_set_rate(struct clk *clk, unsigned long rate) -{ - unsigned long flags; - int ret = -EINVAL; - - if (!clk || !rate) - return -EFAULT; - - if (clk->set_rate) { - spin_lock_irqsave(&clocks_lock, flags); - ret = clk->set_rate(clk, rate); - if (!ret) - /* if successful -> propagate */ - propagate_rate(clk, 0); - spin_unlock_irqrestore(&clocks_lock, flags); - } else if (clk->pclk) { - u32 mult = clk->div_factor ? clk->div_factor : 1; - ret = clk_set_rate(clk->pclk, mult * rate); - } - - return ret; -} -EXPORT_SYMBOL(clk_set_rate); - -/* registers clock in platform clock framework */ -void clk_register(struct clk_lookup *cl) -{ - struct clk *clk; - unsigned long flags; - - if (!cl || !cl->clk) - return; - clk = cl->clk; - - spin_lock_irqsave(&clocks_lock, flags); - - INIT_LIST_HEAD(&clk->children); - if (clk->flags & ALWAYS_ENABLED) - clk->ops = NULL; - else if (!clk->ops) - clk->ops = &generic_clkops; - - /* root clock don't have any parents */ - if (!clk->pclk && !clk->pclk_sel) { - list_add(&clk->sibling, &root_clks); - } else if (clk->pclk && !clk->pclk_sel) { - /* add clocks with only one parent to parent's children list */ - list_add(&clk->sibling, &clk->pclk->children); - } else { - /* clocks with more than one parent */ - struct pclk_info *pclk_info; - - pclk_info = pclk_info_get(clk); - if (!pclk_info) { - pr_err("CLKDEV: invalid pclk info of clk with" - " %s dev_id and %s con_id\n", - cl->dev_id, cl->con_id); - } else { - clk->pclk = pclk_info->pclk; - list_add(&clk->sibling, &pclk_info->pclk->children); - } - } - - spin_unlock_irqrestore(&clocks_lock, flags); - - /* debugfs specific */ -#ifdef CONFIG_DEBUG_FS - list_add(&clk->node, &clocks); - clk->cl = cl; -#endif - - /* add clock to arm clockdev framework */ - clkdev_add(cl); -} - -/** - * propagate_rate - recalculate and propagate all clocks to children - * @pclk: parent clock required to be propogated - * @on_init: flag for enabling clocks which are ENABLED_ON_INIT. - * - * Recalculates all children clocks - */ -void propagate_rate(struct clk *pclk, int on_init) -{ - struct clk *clk, *_temp; - int ret = 0; - - list_for_each_entry_safe(clk, _temp, &pclk->children, sibling) { - if (clk->recalc) { - ret = clk->recalc(clk); - /* - * recalc will return error if clk out is not programmed - * In this case configure default rate. - */ - if (ret && clk->set_rate) - clk->set_rate(clk, 0); - } - propagate_rate(clk, on_init); - - if (!on_init) - continue; - - /* Enable clks enabled on init, in software view */ - if (clk->flags & ENABLED_ON_INIT) - do_clk_enable(clk); - } -} - -/** - * round_rate_index - return closest programmable rate index in rate_config tbl - * @clk: ptr to clock structure - * @drate: desired rate - * @rate: final rate will be returned in this variable only. - * - * Finds index in rate_config for highest clk rate which is less than - * requested rate. If there is no clk rate lesser than requested rate then - * -EINVAL is returned. This routine assumes that rate_config is written - * in incrementing order of clk rates. - * If drate passed is zero then default rate is programmed. - */ -static int -round_rate_index(struct clk *clk, unsigned long drate, unsigned long *rate) -{ - unsigned long tmp = 0, prev_rate = 0; - int index; - - if (!clk->calc_rate) - return -EFAULT; - - if (!drate) - return -EINVAL; - - /* - * This loops ends on two conditions: - * - as soon as clk is found with rate greater than requested rate. - * - if all clks in rate_config are smaller than requested rate. - */ - for (index = 0; index < clk->rate_config.count; index++) { - prev_rate = tmp; - tmp = clk->calc_rate(clk, index); - if (drate < tmp) { - index--; - break; - } - } - /* return if can't find suitable clock */ - if (index < 0) { - index = -EINVAL; - *rate = 0; - } else if (index == clk->rate_config.count) { - /* program with highest clk rate possible */ - index = clk->rate_config.count - 1; - *rate = tmp; - } else - *rate = prev_rate; - - return index; -} - -/** - * clk_round_rate - adjust a rate to the exact rate a clock can provide - * @clk: clock source - * @rate: desired clock rate in Hz - * - * Returns rounded clock rate in Hz, or negative errno. - */ -long clk_round_rate(struct clk *clk, unsigned long drate) -{ - long rate = 0; - int index; - - /* - * propagate call to parent who supports calc_rate. Similar approach is - * used in clk_set_rate. - */ - if (!clk->calc_rate) { - u32 mult; - if (!clk->pclk) - return clk->rate; - - mult = clk->div_factor ? clk->div_factor : 1; - return clk_round_rate(clk->pclk, mult * drate) / mult; - } - - index = round_rate_index(clk, drate, &rate); - if (index >= 0) - return rate; - else - return index; -} -EXPORT_SYMBOL(clk_round_rate); - -/*All below functions are called with lock held */ - -/* - * Calculates pll clk rate for specific value of mode, m, n and p - * - * In normal mode - * rate = (2 * M[15:8] * Fin)/(N * 2^P) - * - * In Dithered mode - * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P) - */ -unsigned long pll_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct pll_rate_tbl *tbls = clk->rate_config.tbls; - unsigned int mode; - - mode = tbls[index].mode ? 256 : 1; - return (((2 * rate / 10000) * tbls[index].m) / - (mode * tbls[index].n * (1 << tbls[index].p))) * 10000; -} - -/* - * calculates current programmed rate of pll1 - * - * In normal mode - * rate = (2 * M[15:8] * Fin)/(N * 2^P) - * - * In Dithered mode - * rate = (2 * M[15:0] * Fin)/(256 * N * 2^P) - */ -int pll_clk_recalc(struct clk *clk) -{ - struct pll_clk_config *config = clk->private_data; - unsigned int num = 2, den = 0, val, mode = 0; - - mode = (readl(config->mode_reg) >> config->masks->mode_shift) & - config->masks->mode_mask; - - val = readl(config->cfg_reg); - /* calculate denominator */ - den = (val >> config->masks->div_p_shift) & config->masks->div_p_mask; - den = 1 << den; - den *= (val >> config->masks->div_n_shift) & config->masks->div_n_mask; - - /* calculate numerator & denominator */ - if (!mode) { - /* Normal mode */ - num *= (val >> config->masks->norm_fdbk_m_shift) & - config->masks->norm_fdbk_m_mask; - } else { - /* Dithered mode */ - num *= (val >> config->masks->dith_fdbk_m_shift) & - config->masks->dith_fdbk_m_mask; - den *= 256; - } - - if (!den) - return -EINVAL; - - clk->rate = (((clk->pclk->rate/10000) * num) / den) * 10000; - return 0; -} - -/* - * Configures new clock rate of pll - */ -int pll_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct pll_rate_tbl *tbls = clk->rate_config.tbls; - struct pll_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->mode_reg) & - ~(config->masks->mode_mask << config->masks->mode_shift); - val |= (tbls[i].mode & config->masks->mode_mask) << - config->masks->mode_shift; - writel(val, config->mode_reg); - - val = readl(config->cfg_reg) & - ~(config->masks->div_p_mask << config->masks->div_p_shift); - val |= (tbls[i].p & config->masks->div_p_mask) << - config->masks->div_p_shift; - val &= ~(config->masks->div_n_mask << config->masks->div_n_shift); - val |= (tbls[i].n & config->masks->div_n_mask) << - config->masks->div_n_shift; - val &= ~(config->masks->dith_fdbk_m_mask << - config->masks->dith_fdbk_m_shift); - if (tbls[i].mode) - val |= (tbls[i].m & config->masks->dith_fdbk_m_mask) << - config->masks->dith_fdbk_m_shift; - else - val |= (tbls[i].m & config->masks->norm_fdbk_m_mask) << - config->masks->norm_fdbk_m_shift; - - writel(val, config->cfg_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates ahb, apb clk rate for specific value of div - */ -unsigned long bus_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct bus_rate_tbl *tbls = clk->rate_config.tbls; - - return rate / (tbls[index].div + 1); -} - -/* calculates current programmed rate of ahb or apb bus */ -int bus_clk_recalc(struct clk *clk) -{ - struct bus_clk_config *config = clk->private_data; - unsigned int div; - - div = ((readl(config->reg) >> config->masks->shift) & - config->masks->mask) + 1; - - if (!div) - return -EINVAL; - - clk->rate = (unsigned long)clk->pclk->rate / div; - return 0; -} - -/* Configures new clock rate of AHB OR APB bus */ -int bus_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct bus_rate_tbl *tbls = clk->rate_config.tbls; - struct bus_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->reg) & - ~(config->masks->mask << config->masks->shift); - val |= (tbls[i].div & config->masks->mask) << config->masks->shift; - writel(val, config->reg); - - clk->rate = rate; - - return 0; -} - -/* - * gives rate for different values of eq, x and y - * - * Fout from synthesizer can be given from two equations: - * Fout1 = (Fin * X/Y)/2 EQ1 - * Fout2 = Fin * X/Y EQ2 - */ -unsigned long aux_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct aux_rate_tbl *tbls = clk->rate_config.tbls; - u8 eq = tbls[index].eq ? 1 : 2; - - return (((rate/10000) * tbls[index].xscale) / - (tbls[index].yscale * eq)) * 10000; -} - -/* - * calculates current programmed rate of auxiliary synthesizers - * used by: UART, FIRDA - * - * Fout from synthesizer can be given from two equations: - * Fout1 = (Fin * X/Y)/2 - * Fout2 = Fin * X/Y - * - * Selection of eqn 1 or 2 is programmed in register - */ -int aux_clk_recalc(struct clk *clk) -{ - struct aux_clk_config *config = clk->private_data; - unsigned int num = 1, den = 1, val, eqn; - - val = readl(config->synth_reg); - - eqn = (val >> config->masks->eq_sel_shift) & - config->masks->eq_sel_mask; - if (eqn == config->masks->eq1_mask) - den *= 2; - - /* calculate numerator */ - num = (val >> config->masks->xscale_sel_shift) & - config->masks->xscale_sel_mask; - - /* calculate denominator */ - den *= (val >> config->masks->yscale_sel_shift) & - config->masks->yscale_sel_mask; - - if (!den) - return -EINVAL; - - clk->rate = (((clk->pclk->rate/10000) * num) / den) * 10000; - return 0; -} - -/* Configures new clock rate of auxiliary synthesizers used by: UART, FIRDA*/ -int aux_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct aux_rate_tbl *tbls = clk->rate_config.tbls; - struct aux_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & - ~(config->masks->eq_sel_mask << config->masks->eq_sel_shift); - val |= (tbls[i].eq & config->masks->eq_sel_mask) << - config->masks->eq_sel_shift; - val &= ~(config->masks->xscale_sel_mask << - config->masks->xscale_sel_shift); - val |= (tbls[i].xscale & config->masks->xscale_sel_mask) << - config->masks->xscale_sel_shift; - val &= ~(config->masks->yscale_sel_mask << - config->masks->yscale_sel_shift); - val |= (tbls[i].yscale & config->masks->yscale_sel_mask) << - config->masks->yscale_sel_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates gpt clk rate for different values of mscale and nscale - * - * Fout= Fin/((2 ^ (N+1)) * (M+1)) - */ -unsigned long gpt_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct gpt_rate_tbl *tbls = clk->rate_config.tbls; - - return rate / ((1 << (tbls[index].nscale + 1)) * - (tbls[index].mscale + 1)); -} - -/* - * calculates current programmed rate of gpt synthesizers - * Fout from synthesizer can be given from below equations: - * Fout= Fin/((2 ^ (N+1)) * (M+1)) - */ -int gpt_clk_recalc(struct clk *clk) -{ - struct gpt_clk_config *config = clk->private_data; - unsigned int div = 1, val; - - val = readl(config->synth_reg); - div += (val >> config->masks->mscale_sel_shift) & - config->masks->mscale_sel_mask; - div *= 1 << (((val >> config->masks->nscale_sel_shift) & - config->masks->nscale_sel_mask) + 1); - - if (!div) - return -EINVAL; - - clk->rate = (unsigned long)clk->pclk->rate / div; - return 0; -} - -/* Configures new clock rate of gptiliary synthesizers used by: UART, FIRDA*/ -int gpt_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct gpt_rate_tbl *tbls = clk->rate_config.tbls; - struct gpt_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & ~(config->masks->mscale_sel_mask << - config->masks->mscale_sel_shift); - val |= (tbls[i].mscale & config->masks->mscale_sel_mask) << - config->masks->mscale_sel_shift; - val &= ~(config->masks->nscale_sel_mask << - config->masks->nscale_sel_shift); - val |= (tbls[i].nscale & config->masks->nscale_sel_mask) << - config->masks->nscale_sel_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Calculates clcd clk rate for different values of div - * - * Fout from synthesizer can be given from below equation: - * Fout= Fin/2*div (division factor) - * div is 17 bits:- - * 0-13 (fractional part) - * 14-16 (integer part) - * To calculate Fout we left shift val by 14 bits and divide Fin by - * complete div (including fractional part) and then right shift the - * result by 14 places. - */ -unsigned long clcd_calc_rate(struct clk *clk, int index) -{ - unsigned long rate = clk->pclk->rate; - struct clcd_rate_tbl *tbls = clk->rate_config.tbls; - - rate /= 1000; - rate <<= 12; - rate /= (2 * tbls[index].div); - rate >>= 12; - rate *= 1000; - - return rate; -} - -/* - * calculates current programmed rate of clcd synthesizer - * Fout from synthesizer can be given from below equation: - * Fout= Fin/2*div (division factor) - * div is 17 bits:- - * 0-13 (fractional part) - * 14-16 (integer part) - * To calculate Fout we left shift val by 14 bits and divide Fin by - * complete div (including fractional part) and then right shift the - * result by 14 places. - */ -int clcd_clk_recalc(struct clk *clk) -{ - struct clcd_clk_config *config = clk->private_data; - unsigned int div = 1; - unsigned long prate; - unsigned int val; - - val = readl(config->synth_reg); - div = (val >> config->masks->div_factor_shift) & - config->masks->div_factor_mask; - - if (!div) - return -EINVAL; - - prate = clk->pclk->rate / 1000; /* first level division, make it KHz */ - - clk->rate = (((unsigned long)prate << 12) / (2 * div)) >> 12; - clk->rate *= 1000; - return 0; -} - -/* Configures new clock rate of auxiliary synthesizers used by: UART, FIRDA*/ -int clcd_clk_set_rate(struct clk *clk, unsigned long desired_rate) -{ - struct clcd_rate_tbl *tbls = clk->rate_config.tbls; - struct clcd_clk_config *config = clk->private_data; - unsigned long val, rate; - int i; - - i = round_rate_index(clk, desired_rate, &rate); - if (i < 0) - return i; - - val = readl(config->synth_reg) & ~(config->masks->div_factor_mask << - config->masks->div_factor_shift); - val |= (tbls[i].div & config->masks->div_factor_mask) << - config->masks->div_factor_shift; - writel(val, config->synth_reg); - - clk->rate = rate; - - return 0; -} - -/* - * Used for clocks that always have value as the parent clock divided by a - * fixed divisor - */ -int follow_parent(struct clk *clk) -{ - unsigned int div_factor = (clk->div_factor < 1) ? 1 : clk->div_factor; - - clk->rate = clk->pclk->rate/div_factor; - return 0; -} - -/** - * recalc_root_clocks - recalculate and propagate all root clocks - * - * Recalculates all root clocks (clocks with no parent), which if the - * clock's .recalc is set correctly, should also propagate their rates. - */ -void recalc_root_clocks(void) -{ - struct clk *pclk; - unsigned long flags; - int ret = 0; - - spin_lock_irqsave(&clocks_lock, flags); - list_for_each_entry(pclk, &root_clks, sibling) { - if (pclk->recalc) { - ret = pclk->recalc(pclk); - /* - * recalc will return error if clk out is not programmed - * In this case configure default clock. - */ - if (ret && pclk->set_rate) - pclk->set_rate(pclk, 0); - } - propagate_rate(pclk, 1); - /* Enable clks enabled on init, in software view */ - if (pclk->flags & ENABLED_ON_INIT) - do_clk_enable(pclk); - } - spin_unlock_irqrestore(&clocks_lock, flags); -} - -void __init clk_init(void) -{ - recalc_root_clocks(); -} - -#ifdef CONFIG_DEBUG_FS -/* - * debugfs support to trace clock tree hierarchy and attributes - */ -static struct dentry *clk_debugfs_root; -static int clk_debugfs_register_one(struct clk *c) -{ - int err; - struct dentry *d; - struct clk *pa = c->pclk; - char s[255]; - char *p = s; - - if (c) { - if (c->cl->con_id) - p += sprintf(p, "%s", c->cl->con_id); - if (c->cl->dev_id) - p += sprintf(p, "%s", c->cl->dev_id); - } - d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root); - if (!d) - return -ENOMEM; - c->dent = d; - - d = debugfs_create_u32("usage_count", S_IRUGO, c->dent, - (u32 *)&c->usage_count); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); - if (!d) { - err = -ENOMEM; - goto err_out; - } - d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); - if (!d) { - err = -ENOMEM; - goto err_out; - } - return 0; - -err_out: - debugfs_remove_recursive(c->dent); - return err; -} - -static int clk_debugfs_register(struct clk *c) -{ - int err; - struct clk *pa = c->pclk; - - if (pa && !pa->dent) { - err = clk_debugfs_register(pa); - if (err) - return err; - } - - if (!c->dent) { - err = clk_debugfs_register_one(c); - if (err) - return err; - } - return 0; -} - -static int __init clk_debugfs_init(void) -{ - struct clk *c; - struct dentry *d; - int err; - - d = debugfs_create_dir("clock", NULL); - if (!d) - return -ENOMEM; - clk_debugfs_root = d; - - list_for_each_entry(c, &clocks, node) { - err = clk_debugfs_register(c); - if (err) - goto err_out; - } - return 0; -err_out: - debugfs_remove_recursive(clk_debugfs_root); - return err; -} -late_initcall(clk_debugfs_init); - -static int clk_debugfs_reparent(struct clk *c) -{ - debugfs_remove(c->dent); - return clk_debugfs_register_one(c); -} -#endif /* CONFIG_DEBUG_FS */ diff --git a/arch/arm/plat-spear/include/plat/clock.h b/arch/arm/plat-spear/include/plat/clock.h deleted file mode 100644 index 0062bafef12d..000000000000 --- a/arch/arm/plat-spear/include/plat/clock.h +++ /dev/null @@ -1,249 +0,0 @@ -/* - * arch/arm/plat-spear/include/plat/clock.h - * - * Clock framework definitions for SPEAr platform - * - * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar<viresh.kumar@st.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __PLAT_CLOCK_H -#define __PLAT_CLOCK_H - -#include <linux/list.h> -#include <linux/clkdev.h> -#include <linux/types.h> - -/* clk structure flags */ -#define ALWAYS_ENABLED (1 << 0) /* clock always enabled */ -#define RESET_TO_ENABLE (1 << 1) /* reset register bit to enable clk */ -#define ENABLED_ON_INIT (1 << 2) /* clocks enabled at init */ - -/** - * struct clkops - clock operations - * @enable: pointer to clock enable function - * @disable: pointer to clock disable function - */ -struct clkops { - int (*enable) (struct clk *); - void (*disable) (struct clk *); -}; - -/** - * struct pclk_info - parents info - * @pclk: pointer to parent clk - * @pclk_val: value to be written for selecting this parent - */ -struct pclk_info { - struct clk *pclk; - u8 pclk_val; -}; - -/** - * struct pclk_sel - parents selection configuration - * @pclk_info: pointer to array of parent clock info - * @pclk_count: number of parents - * @pclk_sel_reg: register for selecting a parent - * @pclk_sel_mask: mask for selecting parent (can be used to clear bits also) - */ -struct pclk_sel { - struct pclk_info *pclk_info; - u8 pclk_count; - void __iomem *pclk_sel_reg; - unsigned int pclk_sel_mask; -}; - -/** - * struct rate_config - clk rate configurations - * @tbls: array of device specific clk rate tables, in ascending order of rates - * @count: size of tbls array - * @default_index: default setting when originally disabled - */ -struct rate_config { - void *tbls; - u8 count; - u8 default_index; -}; - -/** - * struct clk - clock structure - * @usage_count: num of users who enabled this clock - * @flags: flags for clock properties - * @rate: programmed clock rate in Hz - * @en_reg: clk enable/disable reg - * @en_reg_bit: clk enable/disable bit - * @ops: clk enable/disable ops - generic_clkops selected if NULL - * @recalc: pointer to clock rate recalculate function - * @set_rate: pointer to clock set rate function - * @calc_rate: pointer to clock get rate function for index - * @rate_config: rate configuration information, used by set_rate - * @div_factor: division factor to parent clock. - * @pclk: current parent clk - * @pclk_sel: pointer to parent selection structure - * @pclk_sel_shift: register shift for selecting parent of this clock - * @children: list for childrens or this clock - * @sibling: node for list of clocks having same parents - * @private_data: clock specific private data - * @node: list to maintain clocks linearly - * @cl: clocklook up associated with this clock - * @dent: object for debugfs - */ -struct clk { - unsigned int usage_count; - unsigned int flags; - unsigned long rate; - void __iomem *en_reg; - u8 en_reg_bit; - const struct clkops *ops; - int (*recalc) (struct clk *); - int (*set_rate) (struct clk *, unsigned long rate); - unsigned long (*calc_rate)(struct clk *, int index); - struct rate_config rate_config; - unsigned int div_factor; - - struct clk *pclk; - struct pclk_sel *pclk_sel; - unsigned int pclk_sel_shift; - - struct list_head children; - struct list_head sibling; - void *private_data; -#ifdef CONFIG_DEBUG_FS - struct list_head node; - struct clk_lookup *cl; - struct dentry *dent; -#endif -}; - -/* pll configuration structure */ -struct pll_clk_masks { - u32 mode_mask; - u32 mode_shift; - - u32 norm_fdbk_m_mask; - u32 norm_fdbk_m_shift; - u32 dith_fdbk_m_mask; - u32 dith_fdbk_m_shift; - u32 div_p_mask; - u32 div_p_shift; - u32 div_n_mask; - u32 div_n_shift; -}; - -struct pll_clk_config { - void __iomem *mode_reg; - void __iomem *cfg_reg; - struct pll_clk_masks *masks; -}; - -/* pll clk rate config structure */ -struct pll_rate_tbl { - u8 mode; - u16 m; - u8 n; - u8 p; -}; - -/* ahb and apb bus configuration structure */ -struct bus_clk_masks { - u32 mask; - u32 shift; -}; - -struct bus_clk_config { - void __iomem *reg; - struct bus_clk_masks *masks; -}; - -/* ahb and apb clk bus rate config structure */ -struct bus_rate_tbl { - u8 div; -}; - -/* Aux clk configuration structure: applicable to UART and FIRDA */ -struct aux_clk_masks { - u32 eq_sel_mask; - u32 eq_sel_shift; - u32 eq1_mask; - u32 eq2_mask; - u32 xscale_sel_mask; - u32 xscale_sel_shift; - u32 yscale_sel_mask; - u32 yscale_sel_shift; -}; - -struct aux_clk_config { - void __iomem *synth_reg; - struct aux_clk_masks *masks; -}; - -/* aux clk rate config structure */ -struct aux_rate_tbl { - u16 xscale; - u16 yscale; - u8 eq; -}; - -/* GPT clk configuration structure */ -struct gpt_clk_masks { - u32 mscale_sel_mask; - u32 mscale_sel_shift; - u32 nscale_sel_mask; - u32 nscale_sel_shift; -}; - -struct gpt_clk_config { - void __iomem *synth_reg; - struct gpt_clk_masks *masks; -}; - -/* gpt clk rate config structure */ -struct gpt_rate_tbl { - u16 mscale; - u16 nscale; -}; - -/* clcd clk configuration structure */ -struct clcd_synth_masks { - u32 div_factor_mask; - u32 div_factor_shift; -}; - -struct clcd_clk_config { - void __iomem *synth_reg; - struct clcd_synth_masks *masks; -}; - -/* clcd clk rate config structure */ -struct clcd_rate_tbl { - u16 div; -}; - -/* platform specific clock functions */ -void __init clk_init(void); -void clk_register(struct clk_lookup *cl); -void recalc_root_clocks(void); - -/* clock recalc & set rate functions */ -int follow_parent(struct clk *clk); -unsigned long pll_calc_rate(struct clk *clk, int index); -int pll_clk_recalc(struct clk *clk); -int pll_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long bus_calc_rate(struct clk *clk, int index); -int bus_clk_recalc(struct clk *clk); -int bus_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long gpt_calc_rate(struct clk *clk, int index); -int gpt_clk_recalc(struct clk *clk); -int gpt_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long aux_calc_rate(struct clk *clk, int index); -int aux_clk_recalc(struct clk *clk); -int aux_clk_set_rate(struct clk *clk, unsigned long desired_rate); -unsigned long clcd_calc_rate(struct clk *clk, int index); -int clcd_clk_recalc(struct clk *clk); -int clcd_clk_set_rate(struct clk *clk, unsigned long desired_rate); - -#endif /* __PLAT_CLOCK_H */ diff --git a/arch/arm/plat-spear/time.c b/arch/arm/plat-spear/time.c index abb5bdecd509..1c94989d725f 100644 --- a/arch/arm/plat-spear/time.c +++ b/arch/arm/plat-spear/time.c @@ -219,10 +219,10 @@ void __init spear_setup_timer(void) goto err_iomap; } - ret = clk_enable(gpt_clk); + ret = clk_prepare_enable(gpt_clk); if (ret < 0) { - pr_err("%s:couldn't enable gpt clock\n", __func__); - goto err_clk; + pr_err("%s:couldn't prepare-enable gpt clock\n", __func__); + goto err_prepare_enable_clk; } spear_clockevent_init(); @@ -230,7 +230,7 @@ void __init spear_setup_timer(void) return; -err_clk: +err_prepare_enable_clk: clk_put(gpt_clk); err_iomap: iounmap(gpt_base); diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index 0ab82cc2dc8f..d2bf1fd5e44f 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -106,15 +106,16 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, return -EFAULT; { - register unsigned long r8 __asm ("r8") = 0; + register unsigned long r8 __asm ("r8"); unsigned long prev; __asm__ __volatile__( " mf;; \n" - " mov ar.ccv=%3;; \n" - "[1:] cmpxchg4.acq %0=[%1],%2,ar.ccv \n" + " mov %0=r0 \n" + " mov ar.ccv=%4;; \n" + "[1:] cmpxchg4.acq %1=[%2],%3,ar.ccv \n" " .xdata4 \"__ex_table\", 1b-., 2f-. \n" "[2:]" - : "=r" (prev) + : "=r" (r8), "=r" (prev) : "r" (uaddr), "r" (newval), "rO" ((long) (unsigned) oldval) : "memory"); diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 9d0fd7d5bb82..f00ba025375d 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -604,12 +604,6 @@ pfm_unprotect_ctx_ctxsw(pfm_context_t *x, unsigned long f) spin_unlock(&(x)->ctx_lock); } -static inline unsigned int -pfm_do_munmap(struct mm_struct *mm, unsigned long addr, size_t len, int acct) -{ - return do_munmap(mm, addr, len); -} - static inline unsigned long pfm_get_unmapped_area(struct file *file, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags, unsigned long exec) { @@ -1458,8 +1452,9 @@ pfm_unreserve_session(pfm_context_t *ctx, int is_syswide, unsigned int cpu) * a PROTECT_CTX() section. */ static int -pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long size) +pfm_remove_smpl_mapping(void *vaddr, unsigned long size) { + struct task_struct *task = current; int r; /* sanity checks */ @@ -1473,13 +1468,8 @@ pfm_remove_smpl_mapping(struct task_struct *task, void *vaddr, unsigned long siz /* * does the actual unmapping */ - down_write(&task->mm->mmap_sem); + r = vm_munmap((unsigned long)vaddr, size); - DPRINT(("down_write done smpl_vaddr=%p size=%lu\n", vaddr, size)); - - r = pfm_do_munmap(task->mm, (unsigned long)vaddr, size, 0); - - up_write(&task->mm->mmap_sem); if (r !=0) { printk(KERN_ERR "perfmon: [%d] unable to unmap sampling buffer @%p size=%lu\n", task_pid_nr(task), vaddr, size); } @@ -1945,7 +1935,7 @@ pfm_flush(struct file *filp, fl_owner_t id) * because some VM function reenables interrupts. * */ - if (smpl_buf_vaddr) pfm_remove_smpl_mapping(current, smpl_buf_vaddr, smpl_buf_size); + if (smpl_buf_vaddr) pfm_remove_smpl_mapping(smpl_buf_vaddr, smpl_buf_size); return 0; } diff --git a/arch/m68k/configs/m5275evb_defconfig b/arch/m68k/configs/m5275evb_defconfig index 33c32aeca12b..a1230e82bb1e 100644 --- a/arch/m68k/configs/m5275evb_defconfig +++ b/arch/m68k/configs/m5275evb_defconfig @@ -49,7 +49,6 @@ CONFIG_BLK_DEV_RAM=y CONFIG_NETDEVICES=y CONFIG_NET_ETHERNET=y CONFIG_FEC=y -CONFIG_FEC2=y # CONFIG_NETDEV_1000 is not set # CONFIG_NETDEV_10000 is not set CONFIG_PPP=y diff --git a/arch/m68k/platform/527x/config.c b/arch/m68k/platform/527x/config.c index 7ed848c3b848..f91a53294c35 100644 --- a/arch/m68k/platform/527x/config.c +++ b/arch/m68k/platform/527x/config.c @@ -74,9 +74,7 @@ static void __init m527x_fec_init(void) writew(par | 0xf00, MCF_IPSBAR + 0x100082); v = readb(MCF_IPSBAR + 0x100078); writeb(v | 0xc0, MCF_IPSBAR + 0x100078); -#endif -#ifdef CONFIG_FEC2 /* Set multi-function pins to ethernet mode for fec1 */ par = readw(MCF_IPSBAR + 0x100082); writew(par | 0xa0, MCF_IPSBAR + 0x100082); diff --git a/arch/m68k/platform/68EZ328/Makefile b/arch/m68k/platform/68EZ328/Makefile index ee97735a242c..b44d799b1115 100644 --- a/arch/m68k/platform/68EZ328/Makefile +++ b/arch/m68k/platform/68EZ328/Makefile @@ -3,9 +3,3 @@ # obj-y := config.o - -extra-y := bootlogo.rh - -$(obj)/bootlogo.rh: $(src)/bootlogo.h - perl $(src)/../68328/bootlogo.pl < $(src)/bootlogo.h \ - > $(obj)/bootlogo.rh diff --git a/arch/m68k/platform/68VZ328/Makefile b/arch/m68k/platform/68VZ328/Makefile index 447ffa0fd7c7..a49d75e65489 100644 --- a/arch/m68k/platform/68VZ328/Makefile +++ b/arch/m68k/platform/68VZ328/Makefile @@ -3,14 +3,9 @@ # obj-y := config.o -logo-$(UCDIMM) := bootlogo.rh -logo-$(DRAGEN2) := screen.h -extra-y := $(logo-y) - -$(obj)/bootlogo.rh: $(src)/../68EZ328/bootlogo.h - perl $(src)/bootlogo.pl < $(src)/../68328/bootlogo.h > $(obj)/bootlogo.rh +extra-$(DRAGEN2):= screen.h $(obj)/screen.h: $(src)/screen.xbm $(src)/xbm2lcd.pl perl $(src)/xbm2lcd.pl < $(src)/screen.xbm > $(obj)/screen.h -clean-files := $(obj)/screen.h $(obj)/bootlogo.rh +clean-files := $(obj)/screen.h diff --git a/arch/m68k/platform/68EZ328/bootlogo.h b/arch/m68k/platform/68VZ328/bootlogo.h index e842bdae5839..b38e2b255142 100644 --- a/arch/m68k/platform/68EZ328/bootlogo.h +++ b/arch/m68k/platform/68VZ328/bootlogo.h @@ -1,6 +1,6 @@ #define splash_width 640 #define splash_height 480 -static unsigned char splash_bits[] = { +unsigned char __attribute__ ((aligned(16))) bootlogo_bits[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, diff --git a/arch/m68k/platform/coldfire/device.c b/arch/m68k/platform/coldfire/device.c index fa50c48292ff..7af97362b95c 100644 --- a/arch/m68k/platform/coldfire/device.c +++ b/arch/m68k/platform/coldfire/device.c @@ -114,7 +114,7 @@ static struct resource mcf_fec1_resources[] = { static struct platform_device mcf_fec1 = { .name = "fec", - .id = 0, + .id = 1, .num_resources = ARRAY_SIZE(mcf_fec1_resources), .resource = mcf_fec1_resources, }; diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2b7c0fbe578e..9015060919a0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -90,7 +90,6 @@ config S390 select HAVE_KERNEL_XZ select HAVE_ARCH_MUTEX_CPU_RELAX select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 - select HAVE_RCU_TABLE_FREE if SMP select ARCH_SAVE_PAGE_KEYS if HIBERNATION select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP diff --git a/arch/s390/defconfig b/arch/s390/defconfig index 6cf8e26b3137..1957a9dd256d 100644 --- a/arch/s390/defconfig +++ b/arch/s390/defconfig @@ -1,8 +1,12 @@ CONFIG_EXPERIMENTAL=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y +CONFIG_FHANDLE=y +CONFIG_TASKSTATS=y +CONFIG_TASK_DELAY_ACCT=y +CONFIG_TASK_XACCT=y +CONFIG_TASK_IO_ACCOUNTING=y CONFIG_AUDIT=y -CONFIG_RCU_TRACE=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_CGROUPS=y @@ -14,16 +18,22 @@ CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y CONFIG_CGROUP_SCHED=y CONFIG_RT_GROUP_SCHED=y CONFIG_BLK_CGROUP=y +CONFIG_NAMESPACES=y CONFIG_BLK_DEV_INITRD=y -# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_RD_BZIP2=y +CONFIG_RD_LZMA=y +CONFIG_RD_XZ=y +CONFIG_RD_LZO=y +CONFIG_EXPERT=y # CONFIG_COMPAT_BRK is not set -CONFIG_SLAB=y CONFIG_PROFILING=y CONFIG_OPROFILE=y CONFIG_KPROBES=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y +CONFIG_PARTITION_ADVANCED=y +CONFIG_IBM_PARTITION=y CONFIG_DEFAULT_DEADLINE=y CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y @@ -34,18 +44,15 @@ CONFIG_KSM=y CONFIG_BINFMT_MISC=m CONFIG_CMM=m CONFIG_HZ_100=y -CONFIG_KEXEC=y -CONFIG_PM=y +CONFIG_CRASH_DUMP=y CONFIG_HIBERNATION=y CONFIG_PACKET=y CONFIG_UNIX=y CONFIG_NET_KEY=y -CONFIG_AFIUCV=m CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_INET_LRO is not set CONFIG_IPV6=y -CONFIG_NET_SCTPPROBE=m CONFIG_L2TP=m CONFIG_L2TP_DEBUGFS=m CONFIG_VLAN_8021Q=y @@ -84,15 +91,14 @@ CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y CONFIG_SCSI_SCAN_ASYNC=y CONFIG_ZFCP=y -CONFIG_ZFCP_DIF=y CONFIG_NETDEVICES=y -CONFIG_DUMMY=m CONFIG_BONDING=m +CONFIG_DUMMY=m CONFIG_EQUALIZER=m CONFIG_TUN=m -CONFIG_NET_ETHERNET=y CONFIG_VIRTIO_NET=y CONFIG_RAW_DRIVER=m +CONFIG_VIRTIO_BALLOON=y CONFIG_EXT2_FS=y CONFIG_EXT3_FS=y # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set @@ -103,27 +109,21 @@ CONFIG_PROC_KCORE=y CONFIG_TMPFS=y CONFIG_TMPFS_POSIX_ACL=y # CONFIG_NETWORK_FILESYSTEMS is not set -CONFIG_PARTITION_ADVANCED=y -CONFIG_IBM_PARTITION=y -CONFIG_DLM=m CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_KERNEL=y CONFIG_TIMER_STATS=y CONFIG_PROVE_LOCKING=y CONFIG_PROVE_RCU=y CONFIG_LOCK_STAT=y CONFIG_DEBUG_LOCKDEP=y -CONFIG_DEBUG_SPINLOCK_SLEEP=y CONFIG_DEBUG_LIST=y CONFIG_DEBUG_NOTIFIERS=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set +CONFIG_RCU_TRACE=y CONFIG_KPROBES_SANITY_TEST=y CONFIG_DEBUG_FORCE_WEAK_PER_CPU=y CONFIG_CPU_NOTIFIER_ERROR_INJECT=m CONFIG_LATENCYTOP=y -CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_DEBUG_PAGEALLOC=y -# CONFIG_FTRACE is not set +CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_STRICT_DEVMEM is not set CONFIG_CRYPTO_NULL=m CONFIG_CRYPTO_CRYPTD=m @@ -173,4 +173,3 @@ CONFIG_CRYPTO_SHA512_S390=m CONFIG_CRYPTO_DES_S390=m CONFIG_CRYPTO_AES_S390=m CONFIG_CRC7=m -CONFIG_VIRTIO_BALLOON=y diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h index 1e5b27edc0c9..2ee66a65f2d4 100644 --- a/arch/s390/include/asm/facility.h +++ b/arch/s390/include/asm/facility.h @@ -38,12 +38,11 @@ static inline void stfle(u64 *stfle_fac_list, int size) unsigned long nr; preempt_disable(); - S390_lowcore.stfl_fac_list = 0; asm volatile( " .insn s,0xb2b10000,0(0)\n" /* stfl */ "0:\n" EX_TABLE(0b, 0b) - : "=m" (S390_lowcore.stfl_fac_list)); + : "+m" (S390_lowcore.stfl_fac_list)); nr = 4; /* bytes stored by stfl */ memcpy(stfle_fac_list, &S390_lowcore.stfl_fac_list, 4); if (S390_lowcore.stfl_fac_list & 0x01000000) { diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h index 8eef9b5b3cf4..78e3041919de 100644 --- a/arch/s390/include/asm/pgalloc.h +++ b/arch/s390/include/asm/pgalloc.h @@ -22,10 +22,7 @@ void crst_table_free(struct mm_struct *, unsigned long *); unsigned long *page_table_alloc(struct mm_struct *, unsigned long); void page_table_free(struct mm_struct *, unsigned long *); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE void page_table_free_rcu(struct mmu_gather *, unsigned long *); -void __tlb_remove_table(void *_table); -#endif static inline void clear_table(unsigned long *s, unsigned long val, size_t n) { diff --git a/arch/s390/include/asm/swab.h b/arch/s390/include/asm/swab.h index 6bdee21c077e..a3e4ebb32090 100644 --- a/arch/s390/include/asm/swab.h +++ b/arch/s390/include/asm/swab.h @@ -77,7 +77,7 @@ static inline __u16 __arch_swab16p(const __u16 *x) asm volatile( #ifndef __s390x__ - " icm %0,2,%O+1(%R1)\n" + " icm %0,2,%O1+1(%R1)\n" " ic %0,%1\n" : "=&d" (result) : "Q" (*x) : "cc"); #else /* __s390x__ */ diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h index c687a2c83462..775a5eea8f9e 100644 --- a/arch/s390/include/asm/tlb.h +++ b/arch/s390/include/asm/tlb.h @@ -30,14 +30,10 @@ struct mmu_gather { struct mm_struct *mm; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch *batch; -#endif unsigned int fullmm; - unsigned int need_flush; }; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE struct mmu_table_batch { struct rcu_head rcu; unsigned int nr; @@ -49,7 +45,6 @@ struct mmu_table_batch { extern void tlb_table_flush(struct mmu_gather *tlb); extern void tlb_remove_table(struct mmu_gather *tlb, void *table); -#endif static inline void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, @@ -57,29 +52,20 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb, { tlb->mm = mm; tlb->fullmm = full_mm_flush; - tlb->need_flush = 0; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb->batch = NULL; -#endif if (tlb->fullmm) __tlb_flush_mm(mm); } static inline void tlb_flush_mmu(struct mmu_gather *tlb) { - if (!tlb->need_flush) - return; - tlb->need_flush = 0; - __tlb_flush_mm(tlb->mm); -#ifdef CONFIG_HAVE_RCU_TABLE_FREE tlb_table_flush(tlb); -#endif } static inline void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start, unsigned long end) { - tlb_flush_mmu(tlb); + tlb_table_flush(tlb); } /* @@ -105,10 +91,8 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page) static inline void pte_free_tlb(struct mmu_gather *tlb, pgtable_t pte, unsigned long address) { -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return page_table_free_rcu(tlb, (unsigned long *) pte); -#endif page_table_free(tlb->mm, (unsigned long *) pte); } @@ -125,10 +109,8 @@ static inline void pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, #ifdef __s390x__ if (tlb->mm->context.asce_limit <= (1UL << 31)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return tlb_remove_table(tlb, pmd); -#endif crst_table_free(tlb->mm, (unsigned long *) pmd); #endif } @@ -146,10 +128,8 @@ static inline void pud_free_tlb(struct mmu_gather *tlb, pud_t *pud, #ifdef __s390x__ if (tlb->mm->context.asce_limit <= (1UL << 42)) return; -#ifdef CONFIG_HAVE_RCU_TABLE_FREE if (!tlb->fullmm) return tlb_remove_table(tlb, pud); -#endif crst_table_free(tlb->mm, (unsigned long *) pud); #endif } diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index c27a0727f930..adccd908ebc7 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -474,9 +474,9 @@ ENTRY(startup_kdump) stck __LC_LAST_UPDATE_CLOCK spt 5f-.LPG0(%r13) mvc __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13) + xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST #ifndef CONFIG_MARCH_G5 # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10} - xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST .insn s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list tm __LC_STFL_FAC_LIST,0x01 # stfle available ? jz 0f diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 1c2cdd59ccd0..8a22c27219dd 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -118,9 +118,10 @@ asmlinkage void do_softirq(void) "a" (__do_softirq) : "0", "1", "2", "3", "4", "5", "14", "cc", "memory" ); - } else + } else { /* We are already on the async stack. */ __do_softirq(); + } } local_irq_restore(flags); @@ -192,11 +193,12 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler) int index = ext_hash(code); spin_lock_irqsave(&ext_int_hash_lock, flags); - list_for_each_entry_rcu(p, &ext_int_hash[index], entry) + list_for_each_entry_rcu(p, &ext_int_hash[index], entry) { if (p->code == code && p->handler == handler) { list_del_rcu(&p->entry); kfree_rcu(p, rcu); } + } spin_unlock_irqrestore(&ext_int_hash_lock, flags); return 0; } @@ -211,9 +213,10 @@ void __irq_entry do_extint(struct pt_regs *regs, struct ext_code ext_code, old_regs = set_irq_regs(regs); irq_enter(); - if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) + if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) { /* Serve timer interrupts first. */ clock_comparator_work(); + } kstat_cpu(smp_processor_id()).irqs[EXTERNAL_INTERRUPT]++; if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index 46405086479c..cb019f429e88 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -178,7 +178,7 @@ static void cpumf_pmu_enable(struct pmu *pmu) err = lcctl(cpuhw->state); if (err) { pr_err("Enabling the performance measuring unit " - "failed with rc=%lx\n", err); + "failed with rc=%x\n", err); return; } @@ -203,7 +203,7 @@ static void cpumf_pmu_disable(struct pmu *pmu) err = lcctl(inactive); if (err) { pr_err("Disabling the performance measuring unit " - "failed with rc=%lx\n", err); + "failed with rc=%x\n", err); return; } diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c index 7bb15fcca75e..e1335dc2b1b7 100644 --- a/arch/s390/mm/maccess.c +++ b/arch/s390/mm/maccess.c @@ -61,21 +61,14 @@ long probe_kernel_write(void *dst, const void *src, size_t size) return copied < 0 ? -EFAULT : 0; } -/* - * Copy memory in real mode (kernel to kernel) - */ -int memcpy_real(void *dest, void *src, size_t count) +static int __memcpy_real(void *dest, void *src, size_t count) { register unsigned long _dest asm("2") = (unsigned long) dest; register unsigned long _len1 asm("3") = (unsigned long) count; register unsigned long _src asm("4") = (unsigned long) src; register unsigned long _len2 asm("5") = (unsigned long) count; - unsigned long flags; int rc = -EFAULT; - if (!count) - return 0; - flags = __arch_local_irq_stnsm(0xf8UL); asm volatile ( "0: mvcle %1,%2,0x0\n" "1: jo 0b\n" @@ -86,7 +79,23 @@ int memcpy_real(void *dest, void *src, size_t count) "+d" (_len2), "=m" (*((long *) dest)) : "m" (*((long *) src)) : "cc", "memory"); - arch_local_irq_restore(flags); + return rc; +} + +/* + * Copy memory in real mode (kernel to kernel) + */ +int memcpy_real(void *dest, void *src, size_t count) +{ + unsigned long flags; + int rc; + + if (!count) + return 0; + local_irq_save(flags); + __arch_local_irq_stnsm(0xfbUL); + rc = __memcpy_real(dest, src, count); + local_irq_restore(flags); return rc; } diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index 373adf69b01c..6e765bf00670 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -678,8 +678,6 @@ void page_table_free(struct mm_struct *mm, unsigned long *table) } } -#ifdef CONFIG_HAVE_RCU_TABLE_FREE - static void __page_table_free_rcu(void *table, unsigned bit) { struct page *page; @@ -733,7 +731,66 @@ void __tlb_remove_table(void *_table) free_pages((unsigned long) table, ALLOC_ORDER); } -#endif +static void tlb_remove_table_smp_sync(void *arg) +{ + /* Simply deliver the interrupt */ +} + +static void tlb_remove_table_one(void *table) +{ + /* + * This isn't an RCU grace period and hence the page-tables cannot be + * assumed to be actually RCU-freed. + * + * It is however sufficient for software page-table walkers that rely + * on IRQ disabling. See the comment near struct mmu_table_batch. + */ + smp_call_function(tlb_remove_table_smp_sync, NULL, 1); + __tlb_remove_table(table); +} + +static void tlb_remove_table_rcu(struct rcu_head *head) +{ + struct mmu_table_batch *batch; + int i; + + batch = container_of(head, struct mmu_table_batch, rcu); + + for (i = 0; i < batch->nr; i++) + __tlb_remove_table(batch->tables[i]); + + free_page((unsigned long)batch); +} + +void tlb_table_flush(struct mmu_gather *tlb) +{ + struct mmu_table_batch **batch = &tlb->batch; + + if (*batch) { + __tlb_flush_mm(tlb->mm); + call_rcu_sched(&(*batch)->rcu, tlb_remove_table_rcu); + *batch = NULL; + } +} + +void tlb_remove_table(struct mmu_gather *tlb, void *table) +{ + struct mmu_table_batch **batch = &tlb->batch; + + if (*batch == NULL) { + *batch = (struct mmu_table_batch *) + __get_free_page(GFP_NOWAIT | __GFP_NOWARN); + if (*batch == NULL) { + __tlb_flush_mm(tlb->mm); + tlb_remove_table_one(table); + return; + } + (*batch)->nr = 0; + } + (*batch)->tables[(*batch)->nr++] = table; + if ((*batch)->nr == MAX_TABLE_BATCH) + tlb_table_flush(tlb); +} /* * switch on pgstes for its userspace process (for kvm) diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 1210fde18740..160cac9c4036 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -23,6 +23,7 @@ #include <linux/pm.h> #include <linux/delay.h> #include <linux/gfp.h> +#include <linux/cpu.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> @@ -78,6 +79,8 @@ void __cpuinit leon_callin(void) local_flush_tlb_all(); leon_configure_cache_smp(); + notify_cpu_starting(cpuid); + /* Get our local ticker going. */ smp_setup_percpu_timer(); diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 232df9949530..3ee51f189a55 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -566,15 +566,10 @@ out: SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len) { - long ret; - if (invalid_64bit_range(addr, len)) return -EINVAL; - down_write(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, addr, len); - up_write(¤t->mm->mmap_sem); - return ret; + return vm_munmap(addr, len); } extern unsigned long do_mremap(unsigned long addr, diff --git a/arch/tile/kernel/single_step.c b/arch/tile/kernel/single_step.c index 9efbc1391b3c..89529c9f0605 100644 --- a/arch/tile/kernel/single_step.c +++ b/arch/tile/kernel/single_step.c @@ -346,12 +346,10 @@ void single_step_once(struct pt_regs *regs) } /* allocate a cache line of writable, executable memory */ - down_write(¤t->mm->mmap_sem); - buffer = (void __user *) do_mmap(NULL, 0, 64, + buffer = (void __user *) vm_mmap(NULL, 0, 64, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0); - up_write(¤t->mm->mmap_sem); if (IS_ERR((void __force *)buffer)) { kfree(state); diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c index d511d951a052..4824fb45560f 100644 --- a/arch/x86/ia32/ia32_aout.c +++ b/arch/x86/ia32/ia32_aout.c @@ -119,9 +119,7 @@ static void set_brk(unsigned long start, unsigned long end) end = PAGE_ALIGN(end); if (end <= start) return; - down_write(¤t->mm->mmap_sem); - do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + vm_brk(start, end - start); } #ifdef CORE_DUMP @@ -332,9 +330,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) pos = 32; map_size = ex.a_text+ex.a_data; - down_write(¤t->mm->mmap_sem); - error = do_brk(text_addr & PAGE_MASK, map_size); - up_write(¤t->mm->mmap_sem); + error = vm_brk(text_addr & PAGE_MASK, map_size); if (error != (text_addr & PAGE_MASK)) { send_sig(SIGKILL, current, 0); @@ -373,9 +369,7 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) { loff_t pos = fd_offset; - down_write(¤t->mm->mmap_sem); - do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - up_write(¤t->mm->mmap_sem); + vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex), ex.a_text+ex.a_data, &pos); @@ -385,26 +379,22 @@ static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs) goto beyond_if; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, + error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT, fd_offset); - up_write(¤t->mm->mmap_sem); if (error != N_TXTADDR(ex)) { send_sig(SIGKILL, current, 0); return error; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data, + error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE | MAP_32BIT, fd_offset + ex.a_text); - up_write(¤t->mm->mmap_sem); if (error != N_DATADDR(ex)) { send_sig(SIGKILL, current, 0); return error; @@ -476,9 +466,7 @@ static int load_aout_library(struct file *file) error_time = jiffies; } #endif - down_write(¤t->mm->mmap_sem); - do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - up_write(¤t->mm->mmap_sem); + vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); file->f_op->read(file, (char __user *)start_addr, ex.a_text + ex.a_data, &pos); @@ -490,12 +478,10 @@ static int load_aout_library(struct file *file) goto out; } /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, start_addr, ex.a_text + ex.a_data, + error = vm_mmap(file, start_addr, ex.a_text + ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT, N_TXTOFF(ex)); - up_write(¤t->mm->mmap_sem); retval = error; if (error != start_addr) goto out; @@ -503,9 +489,7 @@ static int load_aout_library(struct file *file) len = PAGE_ALIGN(ex.a_text + ex.a_data); bss = ex.a_text + ex.a_data + ex.a_bss; if (bss > len) { - down_write(¤t->mm->mmap_sem); - error = do_brk(start_addr + len, bss - len); - up_write(¤t->mm->mmap_sem); + error = vm_brk(start_addr + len, bss - len); retval = error; if (error != start_addr + len) goto out; diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c index 173df38dbda5..2e88438ffd83 100644 --- a/arch/x86/kvm/pmu.c +++ b/arch/x86/kvm/pmu.c @@ -459,17 +459,17 @@ void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu) pmu->available_event_types = ~entry->ebx & ((1ull << bitmap_len) - 1); if (pmu->version == 1) { - pmu->global_ctrl = (1 << pmu->nr_arch_gp_counters) - 1; - return; + pmu->nr_arch_fixed_counters = 0; + } else { + pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f), + X86_PMC_MAX_FIXED); + pmu->counter_bitmask[KVM_PMC_FIXED] = + ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1; } - pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f), - X86_PMC_MAX_FIXED); - pmu->counter_bitmask[KVM_PMC_FIXED] = - ((u64)1 << ((entry->edx >> 5) & 0xff)) - 1; - pmu->global_ctrl_mask = ~(((1 << pmu->nr_arch_gp_counters) - 1) - | (((1ull << pmu->nr_arch_fixed_counters) - 1) - << X86_PMC_IDX_FIXED)); + pmu->global_ctrl = ((1 << pmu->nr_arch_gp_counters) - 1) | + (((1ull << pmu->nr_arch_fixed_counters) - 1) << X86_PMC_IDX_FIXED); + pmu->global_ctrl_mask = ~pmu->global_ctrl; } void kvm_pmu_init(struct kvm_vcpu *vcpu) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index ad85adfef843..4ff0ab9bc3c8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -2210,9 +2210,12 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data) msr = find_msr_entry(vmx, msr_index); if (msr) { msr->data = data; - if (msr - vmx->guest_msrs < vmx->save_nmsrs) + if (msr - vmx->guest_msrs < vmx->save_nmsrs) { + preempt_disable(); kvm_set_shared_msr(msr->index, msr->data, msr->mask); + preempt_enable(); + } break; } ret = kvm_set_msr_common(vcpu, msr_index, data); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 4044ce0bf7c1..91a5e989abcf 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6336,13 +6336,11 @@ int kvm_arch_prepare_memory_region(struct kvm *kvm, if (npages && !old.rmap) { unsigned long userspace_addr; - down_write(¤t->mm->mmap_sem); - userspace_addr = do_mmap(NULL, 0, + userspace_addr = vm_mmap(NULL, 0, npages * PAGE_SIZE, PROT_READ | PROT_WRITE, map_flags, 0); - up_write(¤t->mm->mmap_sem); if (IS_ERR((void *)userspace_addr)) return PTR_ERR((void *)userspace_addr); @@ -6366,10 +6364,8 @@ void kvm_arch_commit_memory_region(struct kvm *kvm, if (!user_alloc && !old.user_alloc && old.rmap && !npages) { int ret; - down_write(¤t->mm->mmap_sem); - ret = do_munmap(current->mm, old.userspace_addr, + ret = vm_munmap(old.userspace_addr, old.npages * PAGE_SIZE); - up_write(¤t->mm->mmap_sem); if (ret < 0) printk(KERN_WARNING "kvm_vm_ioctl_set_memory_region: " diff --git a/arch/x86/lib/insn.c b/arch/x86/lib/insn.c index 25feb1ae71c5..b1e6c4b2e8eb 100644 --- a/arch/x86/lib/insn.c +++ b/arch/x86/lib/insn.c @@ -379,8 +379,8 @@ err_out: return; } -/* Decode moffset16/32/64 */ -static void __get_moffset(struct insn *insn) +/* Decode moffset16/32/64. Return 0 if failed */ +static int __get_moffset(struct insn *insn) { switch (insn->addr_bytes) { case 2: @@ -397,15 +397,19 @@ static void __get_moffset(struct insn *insn) insn->moffset2.value = get_next(int, insn); insn->moffset2.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->moffset1.got = insn->moffset2.got = 1; + return 1; + err_out: - return; + return 0; } -/* Decode imm v32(Iz) */ -static void __get_immv32(struct insn *insn) +/* Decode imm v32(Iz). Return 0 if failed */ +static int __get_immv32(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -417,14 +421,18 @@ static void __get_immv32(struct insn *insn) insn->immediate.value = get_next(int, insn); insn->immediate.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } + return 1; + err_out: - return; + return 0; } -/* Decode imm v64(Iv/Ov) */ -static void __get_immv(struct insn *insn) +/* Decode imm v64(Iv/Ov), Return 0 if failed */ +static int __get_immv(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -441,15 +449,18 @@ static void __get_immv(struct insn *insn) insn->immediate2.value = get_next(int, insn); insn->immediate2.nbytes = 4; break; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->immediate1.got = insn->immediate2.got = 1; + return 1; err_out: - return; + return 0; } /* Decode ptr16:16/32(Ap) */ -static void __get_immptr(struct insn *insn) +static int __get_immptr(struct insn *insn) { switch (insn->opnd_bytes) { case 2: @@ -462,14 +473,17 @@ static void __get_immptr(struct insn *insn) break; case 8: /* ptr16:64 is not exist (no segment) */ - return; + return 0; + default: /* opnd_bytes must be modified manually */ + goto err_out; } insn->immediate2.value = get_next(unsigned short, insn); insn->immediate2.nbytes = 2; insn->immediate1.got = insn->immediate2.got = 1; + return 1; err_out: - return; + return 0; } /** @@ -489,7 +503,8 @@ void insn_get_immediate(struct insn *insn) insn_get_displacement(insn); if (inat_has_moffset(insn->attr)) { - __get_moffset(insn); + if (!__get_moffset(insn)) + goto err_out; goto done; } @@ -517,16 +532,20 @@ void insn_get_immediate(struct insn *insn) insn->immediate2.nbytes = 4; break; case INAT_IMM_PTR: - __get_immptr(insn); + if (!__get_immptr(insn)) + goto err_out; break; case INAT_IMM_VWORD32: - __get_immv32(insn); + if (!__get_immv32(insn)) + goto err_out; break; case INAT_IMM_VWORD: - __get_immv(insn); + if (!__get_immv(insn)) + goto err_out; break; default: - break; + /* Here, insn must have an immediate, but failed */ + goto err_out; } if (inat_has_second_immediate(insn->attr)) { insn->immediate2.value = get_next(char, insn); diff --git a/crypto/sha512_generic.c b/crypto/sha512_generic.c index 107f6f7be5e1..dd30f40af9f5 100644 --- a/crypto/sha512_generic.c +++ b/crypto/sha512_generic.c @@ -174,7 +174,7 @@ sha512_update(struct shash_desc *desc, const u8 *data, unsigned int len) index = sctx->count[0] & 0x7f; /* Update number of bytes */ - if (!(sctx->count[0] += len)) + if ((sctx->count[0] += len) < len) sctx->count[1]++; part_len = 128 - index; diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index ab513a972c95..a716fede4f25 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -74,7 +74,8 @@ acpi_status acpi_reset(void) /* Check if the reset register is supported */ - if (!reset_reg->address) { + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) || + !reset_reg->address) { return_ACPI_STATUS(AE_NOT_EXIST); } diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index ba14fb93c929..c3881b2eb8b2 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -607,8 +607,7 @@ acpi_os_install_interrupt_handler(u32 gsi, acpi_osd_handler handler, acpi_irq_handler = handler; acpi_irq_context = context; - if (request_threaded_irq(irq, NULL, acpi_irq, IRQF_SHARED, "acpi", - acpi_irq)) { + if (request_irq(irq, acpi_irq, IRQF_SHARED, "acpi", acpi_irq)) { printk(KERN_ERR PREFIX "SCI (IRQ%d) allocation failed\n", irq); acpi_irq_handler = NULL; return AE_NOT_ACQUIRED; diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c index c1d612435939..a6c77e8b37bd 100644 --- a/drivers/acpi/reboot.c +++ b/drivers/acpi/reboot.c @@ -23,7 +23,8 @@ void acpi_reboot(void) /* Is the reset register supported? The spec says we should be * checking the bit width and bit offset, but Windows ignores * these fields */ - /* Ignore also acpi_gbl_FADT.flags.ACPI_FADT_RESET_REGISTER */ + if (!(acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER)) + return; reset_value = acpi_gbl_FADT.reset_value; diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 68013f96729f..7857e8fd0a3e 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -329,6 +329,8 @@ static const struct pci_device_id piix_pci_tbl[] = { { 0x8086, 0x8c08, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, /* SATA Controller IDE (Lynx Point) */ { 0x8086, 0x8c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, + /* SATA Controller IDE (DH89xxCC) */ + { 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata }, { } /* terminate list */ }; diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index e0bda9ff89cd..28db50b57b91 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -95,7 +95,7 @@ static unsigned int ata_dev_set_xfermode(struct ata_device *dev); static void ata_dev_xfermask(struct ata_device *dev); static unsigned long ata_dev_blacklisted(const struct ata_device *dev); -unsigned int ata_print_id = 1; +atomic_t ata_print_id = ATOMIC_INIT(1); struct ata_force_param { const char *name; @@ -6029,7 +6029,7 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht) /* give ports names and add SCSI hosts */ for (i = 0; i < host->n_ports; i++) - host->ports[i]->print_id = ata_print_id++; + host->ports[i]->print_id = atomic_inc_return(&ata_print_id); /* Create associated sysfs transport objects */ diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c index 1ee00c8b5b04..93dabdcd2cbe 100644 --- a/drivers/ata/libata-scsi.c +++ b/drivers/ata/libata-scsi.c @@ -3843,7 +3843,7 @@ int ata_sas_async_port_init(struct ata_port *ap) int rc = ap->ops->port_start(ap); if (!rc) { - ap->print_id = ata_print_id++; + ap->print_id = atomic_inc_return(&ata_print_id); __ata_port_probe(ap); } @@ -3867,7 +3867,7 @@ int ata_sas_port_init(struct ata_port *ap) int rc = ap->ops->port_start(ap); if (!rc) { - ap->print_id = ata_print_id++; + ap->print_id = atomic_inc_return(&ata_print_id); rc = ata_port_probe(ap); } diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index 74aaee30e264..c34190485377 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -294,6 +294,7 @@ int ata_tport_add(struct device *parent, device_enable_async_suspend(dev); pm_runtime_set_active(dev); pm_runtime_enable(dev); + pm_runtime_forbid(dev); transport_add_device(dev); transport_configure_device(dev); diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index 2e26fcaf635b..9d0fd0b71852 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -53,7 +53,7 @@ enum { ATA_DNXFER_QUIET = (1 << 31), }; -extern unsigned int ata_print_id; +extern atomic_t ata_print_id; extern int atapi_passthru16; extern int libata_fua; extern int libata_noacpi; diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c index 38950ea8398a..7336d4a7ab31 100644 --- a/drivers/ata/sata_mv.c +++ b/drivers/ata/sata_mv.c @@ -4025,7 +4025,8 @@ static int mv_platform_probe(struct platform_device *pdev) struct ata_host *host; struct mv_host_priv *hpriv; struct resource *res; - int n_ports, rc; + int n_ports = 0; + int rc; ata_print_version_once(&pdev->dev, DRV_VERSION); diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 0e4ef3de9d5d..0d39f2f4294a 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -375,6 +375,34 @@ static int init_vq(struct virtio_blk *vblk) return err; } +/* + * Legacy naming scheme used for virtio devices. We are stuck with it for + * virtio blk but don't ever use it for any new driver. + */ +static int virtblk_name_format(char *prefix, int index, char *buf, int buflen) +{ + const int base = 'z' - 'a' + 1; + char *begin = buf + strlen(prefix); + char *end = buf + buflen; + char *p; + int unit; + + p = end - 1; + *p = '\0'; + unit = base; + do { + if (p == begin) + return -EINVAL; + *--p = 'a' + (index % unit); + index = (index / unit) - 1; + } while (index >= 0); + + memmove(begin, p, end - p); + memcpy(buf, prefix, strlen(prefix)); + + return 0; +} + static int __devinit virtblk_probe(struct virtio_device *vdev) { struct virtio_blk *vblk; @@ -443,18 +471,7 @@ static int __devinit virtblk_probe(struct virtio_device *vdev) q->queuedata = vblk; - if (index < 26) { - sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26); - } else if (index < (26 + 1) * 26) { - sprintf(vblk->disk->disk_name, "vd%c%c", - 'a' + index / 26 - 1, 'a' + index % 26); - } else { - const unsigned int m1 = (index / 26 - 1) / 26 - 1; - const unsigned int m2 = (index / 26 - 1) % 26; - const unsigned int m3 = index % 26; - sprintf(vblk->disk->disk_name, "vd%c%c%c", - 'a' + m1, 'a' + m2, 'a' + m3); - } + virtblk_name_format("vd", index, vblk->disk->disk_name, DISK_NAME_LEN); vblk->disk->major = major; vblk->disk->first_minor = index_to_minor(index); diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c index 89860f34a7ec..4f66171c6683 100644 --- a/drivers/block/xen-blkback/xenbus.c +++ b/drivers/block/xen-blkback/xenbus.c @@ -416,7 +416,7 @@ static void xen_blkbk_discard(struct xenbus_transaction xbt, struct backend_info "discard-secure", "%d", blkif->vbd.discard_secure); if (err) { - dev_warn(dev-dev, "writing discard-secure (%d)", err); + dev_warn(&dev->dev, "writing discard-secure (%d)", err); return; } } diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 165e1febae53..4864407e3fc4 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -12,6 +12,7 @@ config HAVE_MACH_CLKDEV config COMMON_CLK bool select HAVE_CLK_PREPARE + select CLKDEV_LOOKUP ---help--- The common clock framework is a single definition of struct clk, useful across many platforms, as well as an @@ -22,17 +23,6 @@ config COMMON_CLK menu "Common Clock Framework" depends on COMMON_CLK -config COMMON_CLK_DISABLE_UNUSED - bool "Disabled unused clocks at boot" - depends on COMMON_CLK - ---help--- - Traverses the entire clock tree and disables any clocks that are - enabled in hardware but have not been enabled by any device drivers. - This saves power and keeps the software model of the clock in line - with reality. - - If in doubt, say "N". - config COMMON_CLK_DEBUG bool "DebugFS representation of clock tree" depends on COMMON_CLK diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index 1f736bc11c4b..0f5e03d1ef5c 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -1,4 +1,7 @@ obj-$(CONFIG_CLKDEV_LOOKUP) += clkdev.o obj-$(CONFIG_COMMON_CLK) += clk.o clk-fixed-rate.o clk-gate.o \ - clk-mux.o clk-divider.o + clk-mux.o clk-divider.o clk-fixed-factor.o + +# SoCs specific +obj-$(CONFIG_PLAT_SPEAR) += spear/ diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index d5ac6a75ea57..8ea11b444528 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -45,7 +45,6 @@ static unsigned long clk_divider_recalc_rate(struct clk_hw *hw, return parent_rate / div; } -EXPORT_SYMBOL_GPL(clk_divider_recalc_rate); /* * The reverse of DIV_ROUND_UP: The maximum number which @@ -68,8 +67,8 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, if (divider->flags & CLK_DIVIDER_ONE_BASED) maxdiv--; - if (!best_parent_rate) { - parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); + if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) { + parent_rate = *best_parent_rate; bestdiv = DIV_ROUND_UP(parent_rate, rate); bestdiv = bestdiv == 0 ? 1 : bestdiv; bestdiv = bestdiv > maxdiv ? maxdiv : bestdiv; @@ -109,24 +108,18 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, int div; div = clk_divider_bestdiv(hw, rate, prate); - if (prate) - return *prate / div; - else { - unsigned long r; - r = __clk_get_rate(__clk_get_parent(hw->clk)); - return r / div; - } + return *prate / div; } -EXPORT_SYMBOL_GPL(clk_divider_round_rate); -static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate) +static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { struct clk_divider *divider = to_clk_divider(hw); unsigned int div; unsigned long flags = 0; u32 val; - div = __clk_get_rate(__clk_get_parent(hw->clk)) / rate; + div = parent_rate / rate; if (!(divider->flags & CLK_DIVIDER_ONE_BASED)) div--; @@ -147,15 +140,26 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate) return 0; } -EXPORT_SYMBOL_GPL(clk_divider_set_rate); -struct clk_ops clk_divider_ops = { +const struct clk_ops clk_divider_ops = { .recalc_rate = clk_divider_recalc_rate, .round_rate = clk_divider_round_rate, .set_rate = clk_divider_set_rate, }; EXPORT_SYMBOL_GPL(clk_divider_ops); +/** + * clk_register_divider - register a divider clock with the clock framework + * @dev: device registering this clock + * @name: name of this clock + * @parent_name: name of clock's parent + * @flags: framework-specific flags + * @reg: register address to adjust divider + * @shift: number of bits to shift the bitfield + * @width: width of the bitfield + * @clk_divider_flags: divider-specific flags for this clock + * @lock: shared register lock for this clock + */ struct clk *clk_register_divider(struct device *dev, const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 shift, u8 width, @@ -163,38 +167,34 @@ struct clk *clk_register_divider(struct device *dev, const char *name, { struct clk_divider *div; struct clk *clk; + struct clk_init_data init; + /* allocate the divider */ div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL); - if (!div) { pr_err("%s: could not allocate divider clk\n", __func__); - return NULL; + return ERR_PTR(-ENOMEM); } + init.name = name; + init.ops = &clk_divider_ops; + init.flags = flags; + init.parent_names = (parent_name ? &parent_name: NULL); + init.num_parents = (parent_name ? 1 : 0); + /* struct clk_divider assignments */ div->reg = reg; div->shift = shift; div->width = width; div->flags = clk_divider_flags; div->lock = lock; + div->hw.init = &init; - if (parent_name) { - div->parent[0] = kstrdup(parent_name, GFP_KERNEL); - if (!div->parent[0]) - goto out; - } - - clk = clk_register(dev, name, - &clk_divider_ops, &div->hw, - div->parent, - (parent_name ? 1 : 0), - flags); - if (clk) - return clk; + /* register the clock */ + clk = clk_register(dev, &div->hw); -out: - kfree(div->parent[0]); - kfree(div); + if (IS_ERR(clk)) + kfree(div); - return NULL; + return clk; } diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c new file mode 100644 index 000000000000..c8c003e217ad --- /dev/null +++ b/drivers/clk/clk-fixed-factor.c @@ -0,0 +1,95 @@ +/* + * Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Standard functionality for the common clock API. + */ +#include <linux/module.h> +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/err.h> + +/* + * DOC: basic fixed multiplier and divider clock that cannot gate + * + * Traits of this clock: + * prepare - clk_prepare only ensures that parents are prepared + * enable - clk_enable only ensures that parents are enabled + * rate - rate is fixed. clk->rate = parent->rate / div * mult + * parent - fixed parent. No clk_set_parent support + */ + +#define to_clk_fixed_factor(_hw) container_of(_hw, struct clk_fixed_factor, hw) + +static unsigned long clk_factor_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_fixed_factor *fix = to_clk_fixed_factor(hw); + + return parent_rate * fix->mult / fix->div; +} + +static long clk_factor_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_fixed_factor *fix = to_clk_fixed_factor(hw); + + if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + unsigned long best_parent; + + best_parent = (rate / fix->mult) * fix->div; + *prate = __clk_round_rate(__clk_get_parent(hw->clk), + best_parent); + } + + return (*prate / fix->div) * fix->mult; +} + +static int clk_factor_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + return 0; +} + +struct clk_ops clk_fixed_factor_ops = { + .round_rate = clk_factor_round_rate, + .set_rate = clk_factor_set_rate, + .recalc_rate = clk_factor_recalc_rate, +}; +EXPORT_SYMBOL_GPL(clk_fixed_factor_ops); + +struct clk *clk_register_fixed_factor(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + unsigned int mult, unsigned int div) +{ + struct clk_fixed_factor *fix; + struct clk_init_data init; + struct clk *clk; + + fix = kmalloc(sizeof(*fix), GFP_KERNEL); + if (!fix) { + pr_err("%s: could not allocate fixed factor clk\n", __func__); + return ERR_PTR(-ENOMEM); + } + + /* struct clk_fixed_factor assignments */ + fix->mult = mult; + fix->div = div; + fix->hw.init = &init; + + init.name = name; + init.ops = &clk_fixed_factor_ops; + init.flags = flags; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(dev, &fix->hw); + + if (IS_ERR(clk)) + kfree(fix); + + return clk; +} diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c index 90c79fb5d1bd..cbd246229786 100644 --- a/drivers/clk/clk-fixed-rate.c +++ b/drivers/clk/clk-fixed-rate.c @@ -32,51 +32,50 @@ static unsigned long clk_fixed_rate_recalc_rate(struct clk_hw *hw, { return to_clk_fixed_rate(hw)->fixed_rate; } -EXPORT_SYMBOL_GPL(clk_fixed_rate_recalc_rate); -struct clk_ops clk_fixed_rate_ops = { +const struct clk_ops clk_fixed_rate_ops = { .recalc_rate = clk_fixed_rate_recalc_rate, }; EXPORT_SYMBOL_GPL(clk_fixed_rate_ops); +/** + * clk_register_fixed_rate - register fixed-rate clock with the clock framework + * @dev: device that is registering this clock + * @name: name of this clock + * @parent_name: name of clock's parent + * @flags: framework-specific flags + * @fixed_rate: non-adjustable clock rate + */ struct clk *clk_register_fixed_rate(struct device *dev, const char *name, const char *parent_name, unsigned long flags, unsigned long fixed_rate) { struct clk_fixed_rate *fixed; - char **parent_names = NULL; - u8 len; + struct clk *clk; + struct clk_init_data init; + /* allocate fixed-rate clock */ fixed = kzalloc(sizeof(struct clk_fixed_rate), GFP_KERNEL); - if (!fixed) { pr_err("%s: could not allocate fixed clk\n", __func__); return ERR_PTR(-ENOMEM); } + init.name = name; + init.ops = &clk_fixed_rate_ops; + init.flags = flags; + init.parent_names = (parent_name ? &parent_name: NULL); + init.num_parents = (parent_name ? 1 : 0); + /* struct clk_fixed_rate assignments */ fixed->fixed_rate = fixed_rate; + fixed->hw.init = &init; - if (parent_name) { - parent_names = kmalloc(sizeof(char *), GFP_KERNEL); - - if (! parent_names) - goto out; + /* register the clock */ + clk = clk_register(dev, &fixed->hw); - len = sizeof(char) * strlen(parent_name); - - parent_names[0] = kmalloc(len, GFP_KERNEL); - - if (!parent_names[0]) - goto out; - - strncpy(parent_names[0], parent_name, len); - } + if (IS_ERR(clk)) + kfree(fixed); -out: - return clk_register(dev, name, - &clk_fixed_rate_ops, &fixed->hw, - parent_names, - (parent_name ? 1 : 0), - flags); + return clk; } diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c index b5902e2ef2fd..578465e04be6 100644 --- a/drivers/clk/clk-gate.c +++ b/drivers/clk/clk-gate.c @@ -28,32 +28,38 @@ #define to_clk_gate(_hw) container_of(_hw, struct clk_gate, hw) -static void clk_gate_set_bit(struct clk_gate *gate) +/* + * It works on following logic: + * + * For enabling clock, enable = 1 + * set2dis = 1 -> clear bit -> set = 0 + * set2dis = 0 -> set bit -> set = 1 + * + * For disabling clock, enable = 0 + * set2dis = 1 -> set bit -> set = 1 + * set2dis = 0 -> clear bit -> set = 0 + * + * So, result is always: enable xor set2dis. + */ +static void clk_gate_endisable(struct clk_hw *hw, int enable) { - u32 reg; + struct clk_gate *gate = to_clk_gate(hw); + int set = gate->flags & CLK_GATE_SET_TO_DISABLE ? 1 : 0; unsigned long flags = 0; + u32 reg; + + set ^= enable; if (gate->lock) spin_lock_irqsave(gate->lock, flags); reg = readl(gate->reg); - reg |= BIT(gate->bit_idx); - writel(reg, gate->reg); - - if (gate->lock) - spin_unlock_irqrestore(gate->lock, flags); -} - -static void clk_gate_clear_bit(struct clk_gate *gate) -{ - u32 reg; - unsigned long flags = 0; - if (gate->lock) - spin_lock_irqsave(gate->lock, flags); + if (set) + reg |= BIT(gate->bit_idx); + else + reg &= ~BIT(gate->bit_idx); - reg = readl(gate->reg); - reg &= ~BIT(gate->bit_idx); writel(reg, gate->reg); if (gate->lock) @@ -62,27 +68,15 @@ static void clk_gate_clear_bit(struct clk_gate *gate) static int clk_gate_enable(struct clk_hw *hw) { - struct clk_gate *gate = to_clk_gate(hw); - - if (gate->flags & CLK_GATE_SET_TO_DISABLE) - clk_gate_clear_bit(gate); - else - clk_gate_set_bit(gate); + clk_gate_endisable(hw, 1); return 0; } -EXPORT_SYMBOL_GPL(clk_gate_enable); static void clk_gate_disable(struct clk_hw *hw) { - struct clk_gate *gate = to_clk_gate(hw); - - if (gate->flags & CLK_GATE_SET_TO_DISABLE) - clk_gate_set_bit(gate); - else - clk_gate_clear_bit(gate); + clk_gate_endisable(hw, 0); } -EXPORT_SYMBOL_GPL(clk_gate_disable); static int clk_gate_is_enabled(struct clk_hw *hw) { @@ -99,15 +93,25 @@ static int clk_gate_is_enabled(struct clk_hw *hw) return reg ? 1 : 0; } -EXPORT_SYMBOL_GPL(clk_gate_is_enabled); -struct clk_ops clk_gate_ops = { +const struct clk_ops clk_gate_ops = { .enable = clk_gate_enable, .disable = clk_gate_disable, .is_enabled = clk_gate_is_enabled, }; EXPORT_SYMBOL_GPL(clk_gate_ops); +/** + * clk_register_gate - register a gate clock with the clock framework + * @dev: device that is registering this clock + * @name: name of this clock + * @parent_name: name of this clock's parent + * @flags: framework-specific flags for this clock + * @reg: register address to control gating of this clock + * @bit_idx: which bit in the register controls gating of this clock + * @clk_gate_flags: gate-specific flags for this clock + * @lock: shared register lock for this clock + */ struct clk *clk_register_gate(struct device *dev, const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 bit_idx, @@ -115,36 +119,32 @@ struct clk *clk_register_gate(struct device *dev, const char *name, { struct clk_gate *gate; struct clk *clk; + struct clk_init_data init; + /* allocate the gate */ gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL); - if (!gate) { pr_err("%s: could not allocate gated clk\n", __func__); - return NULL; + return ERR_PTR(-ENOMEM); } + init.name = name; + init.ops = &clk_gate_ops; + init.flags = flags; + init.parent_names = (parent_name ? &parent_name: NULL); + init.num_parents = (parent_name ? 1 : 0); + /* struct clk_gate assignments */ gate->reg = reg; gate->bit_idx = bit_idx; gate->flags = clk_gate_flags; gate->lock = lock; + gate->hw.init = &init; - if (parent_name) { - gate->parent[0] = kstrdup(parent_name, GFP_KERNEL); - if (!gate->parent[0]) - goto out; - } + clk = clk_register(dev, &gate->hw); + + if (IS_ERR(clk)) + kfree(gate); - clk = clk_register(dev, name, - &clk_gate_ops, &gate->hw, - gate->parent, - (parent_name ? 1 : 0), - flags); - if (clk) - return clk; -out: - kfree(gate->parent[0]); - kfree(gate); - - return NULL; + return clk; } diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c index c71ad1f41a97..fd36a8ea73d9 100644 --- a/drivers/clk/clk-mux.c +++ b/drivers/clk/clk-mux.c @@ -55,7 +55,6 @@ static u8 clk_mux_get_parent(struct clk_hw *hw) return val; } -EXPORT_SYMBOL_GPL(clk_mux_get_parent); static int clk_mux_set_parent(struct clk_hw *hw, u8 index) { @@ -82,35 +81,47 @@ static int clk_mux_set_parent(struct clk_hw *hw, u8 index) return 0; } -EXPORT_SYMBOL_GPL(clk_mux_set_parent); -struct clk_ops clk_mux_ops = { +const struct clk_ops clk_mux_ops = { .get_parent = clk_mux_get_parent, .set_parent = clk_mux_set_parent, }; EXPORT_SYMBOL_GPL(clk_mux_ops); struct clk *clk_register_mux(struct device *dev, const char *name, - char **parent_names, u8 num_parents, unsigned long flags, + const char **parent_names, u8 num_parents, unsigned long flags, void __iomem *reg, u8 shift, u8 width, u8 clk_mux_flags, spinlock_t *lock) { struct clk_mux *mux; + struct clk *clk; + struct clk_init_data init; - mux = kmalloc(sizeof(struct clk_mux), GFP_KERNEL); - + /* allocate the mux */ + mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL); if (!mux) { pr_err("%s: could not allocate mux clk\n", __func__); return ERR_PTR(-ENOMEM); } + init.name = name; + init.ops = &clk_mux_ops; + init.flags = flags; + init.parent_names = parent_names; + init.num_parents = num_parents; + /* struct clk_mux assignments */ mux->reg = reg; mux->shift = shift; mux->width = width; mux->flags = clk_mux_flags; mux->lock = lock; + mux->hw.init = &init; + + clk = clk_register(dev, &mux->hw); + + if (IS_ERR(clk)) + kfree(mux); - return clk_register(dev, name, &clk_mux_ops, &mux->hw, - parent_names, num_parents, flags); + return clk; } diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 9cf6f59e3e19..e5d5dc13bcfd 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -194,9 +194,8 @@ static int __init clk_debug_init(void) late_initcall(clk_debug_init); #else static inline int clk_debug_register(struct clk *clk) { return 0; } -#endif /* CONFIG_COMMON_CLK_DEBUG */ +#endif -#ifdef CONFIG_COMMON_CLK_DISABLE_UNUSED /* caller must hold prepare_lock */ static void clk_disable_unused_subtree(struct clk *clk) { @@ -246,9 +245,6 @@ static int clk_disable_unused(void) return 0; } late_initcall(clk_disable_unused); -#else -static inline int clk_disable_unused(struct clk *clk) { return 0; } -#endif /* CONFIG_COMMON_CLK_DISABLE_UNUSED */ /*** helper functions ***/ @@ -287,7 +283,7 @@ unsigned long __clk_get_rate(struct clk *clk) unsigned long ret; if (!clk) { - ret = -EINVAL; + ret = 0; goto out; } @@ -297,7 +293,7 @@ unsigned long __clk_get_rate(struct clk *clk) goto out; if (!clk->parent) - ret = -ENODEV; + ret = 0; out: return ret; @@ -562,7 +558,7 @@ EXPORT_SYMBOL_GPL(clk_enable); * @clk: the clk whose rate is being returned * * Simply returns the cached rate of the clk. Does not query the hardware. If - * clk is NULL then returns -EINVAL. + * clk is NULL then returns 0. */ unsigned long clk_get_rate(struct clk *clk) { @@ -584,18 +580,22 @@ EXPORT_SYMBOL_GPL(clk_get_rate); */ unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) { - unsigned long unused; + unsigned long parent_rate = 0; if (!clk) return -EINVAL; - if (!clk->ops->round_rate) - return clk->rate; + if (!clk->ops->round_rate) { + if (clk->flags & CLK_SET_RATE_PARENT) + return __clk_round_rate(clk->parent, rate); + else + return clk->rate; + } - if (clk->flags & CLK_SET_RATE_PARENT) - return clk->ops->round_rate(clk->hw, rate, &unused); - else - return clk->ops->round_rate(clk->hw, rate, NULL); + if (clk->parent) + parent_rate = clk->parent->rate; + + return clk->ops->round_rate(clk->hw, rate, &parent_rate); } /** @@ -765,25 +765,41 @@ static void clk_calc_subtree(struct clk *clk, unsigned long new_rate) static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate) { struct clk *top = clk; - unsigned long best_parent_rate = clk->parent->rate; + unsigned long best_parent_rate = 0; unsigned long new_rate; - if (!clk->ops->round_rate && !(clk->flags & CLK_SET_RATE_PARENT)) { - clk->new_rate = clk->rate; + /* sanity */ + if (IS_ERR_OR_NULL(clk)) return NULL; + + /* save parent rate, if it exists */ + if (clk->parent) + best_parent_rate = clk->parent->rate; + + /* never propagate up to the parent */ + if (!(clk->flags & CLK_SET_RATE_PARENT)) { + if (!clk->ops->round_rate) { + clk->new_rate = clk->rate; + return NULL; + } + new_rate = clk->ops->round_rate(clk->hw, rate, &best_parent_rate); + goto out; } - if (!clk->ops->round_rate && (clk->flags & CLK_SET_RATE_PARENT)) { + /* need clk->parent from here on out */ + if (!clk->parent) { + pr_debug("%s: %s has NULL parent\n", __func__, clk->name); + return NULL; + } + + if (!clk->ops->round_rate) { top = clk_calc_new_rates(clk->parent, rate); - new_rate = clk->new_rate = clk->parent->new_rate; + new_rate = clk->parent->new_rate; goto out; } - if (clk->flags & CLK_SET_RATE_PARENT) - new_rate = clk->ops->round_rate(clk->hw, rate, &best_parent_rate); - else - new_rate = clk->ops->round_rate(clk->hw, rate, NULL); + new_rate = clk->ops->round_rate(clk->hw, rate, &best_parent_rate); if (best_parent_rate != clk->parent->rate) { top = clk_calc_new_rates(clk->parent, best_parent_rate); @@ -839,7 +855,7 @@ static void clk_change_rate(struct clk *clk) old_rate = clk->rate; if (clk->ops->set_rate) - clk->ops->set_rate(clk->hw, clk->new_rate); + clk->ops->set_rate(clk->hw, clk->new_rate, clk->parent->rate); if (clk->ops->recalc_rate) clk->rate = clk->ops->recalc_rate(clk->hw, @@ -859,38 +875,19 @@ static void clk_change_rate(struct clk *clk) * @clk: the clk whose rate is being changed * @rate: the new rate for clk * - * In the simplest case clk_set_rate will only change the rate of clk. + * In the simplest case clk_set_rate will only adjust the rate of clk. * - * If clk has the CLK_SET_RATE_GATE flag set and it is enabled this call - * will fail; only when the clk is disabled will it be able to change - * its rate. + * Setting the CLK_SET_RATE_PARENT flag allows the rate change operation to + * propagate up to clk's parent; whether or not this happens depends on the + * outcome of clk's .round_rate implementation. If *parent_rate is unchanged + * after calling .round_rate then upstream parent propagation is ignored. If + * *parent_rate comes back with a new rate for clk's parent then we propagate + * up to clk's parent and set it's rate. Upward propagation will continue + * until either a clk does not support the CLK_SET_RATE_PARENT flag or + * .round_rate stops requesting changes to clk's parent_rate. * - * Setting the CLK_SET_RATE_PARENT flag allows clk_set_rate to - * recursively propagate up to clk's parent; whether or not this happens - * depends on the outcome of clk's .round_rate implementation. If - * *parent_rate is 0 after calling .round_rate then upstream parent - * propagation is ignored. If *parent_rate comes back with a new rate - * for clk's parent then we propagate up to clk's parent and set it's - * rate. Upward propagation will continue until either a clk does not - * support the CLK_SET_RATE_PARENT flag or .round_rate stops requesting - * changes to clk's parent_rate. If there is a failure during upstream - * propagation then clk_set_rate will unwind and restore each clk's rate - * that had been successfully changed. Afterwards a rate change abort - * notification will be propagated downstream, starting from the clk - * that failed. - * - * At the end of all of the rate setting, clk_set_rate internally calls - * __clk_recalc_rates and propagates the rate changes downstream, - * starting from the highest clk whose rate was changed. This has the - * added benefit of propagating post-rate change notifiers. - * - * Note that while post-rate change and rate change abort notifications - * are guaranteed to be sent to a clk only once per call to - * clk_set_rate, pre-change notifications will be sent for every clk - * whose rate is changed. Stacking pre-change notifications is noisy - * for the drivers subscribed to them, but this allows drivers to react - * to intermediate clk rate changes up until the point where the final - * rate is achieved at the end of upstream propagation. + * Rate changes are accomplished via tree traversal that also recalculates the + * rates for the clocks and fires off POST_RATE_CHANGE notifiers. * * Returns 0 on success, -EERROR otherwise. */ @@ -906,6 +903,11 @@ int clk_set_rate(struct clk *clk, unsigned long rate) if (rate == clk->rate) goto out; + if ((clk->flags & CLK_SET_RATE_GATE) && __clk_is_enabled(clk)) { + ret = -EBUSY; + goto out; + } + /* calculate new rates and get the topmost changed clock */ top = clk_calc_new_rates(clk, rate); if (!top) { @@ -1175,40 +1177,41 @@ EXPORT_SYMBOL_GPL(clk_set_parent); * * Initializes the lists in struct clk, queries the hardware for the * parent and rate and sets them both. - * - * Any struct clk passed into __clk_init must have the following members - * populated: - * .name - * .ops - * .hw - * .parent_names - * .num_parents - * .flags - * - * Essentially, everything that would normally be passed into clk_register is - * assumed to be initialized already in __clk_init. The other members may be - * populated, but are optional. - * - * __clk_init is only exposed via clk-private.h and is intended for use with - * very large numbers of clocks that need to be statically initialized. It is - * a layering violation to include clk-private.h from any code which implements - * a clock's .ops; as such any statically initialized clock data MUST be in a - * separate C file from the logic that implements it's operations. */ -void __clk_init(struct device *dev, struct clk *clk) +int __clk_init(struct device *dev, struct clk *clk) { - int i; + int i, ret = 0; struct clk *orphan; struct hlist_node *tmp, *tmp2; if (!clk) - return; + return -EINVAL; mutex_lock(&prepare_lock); /* check to see if a clock with this name is already registered */ - if (__clk_lookup(clk->name)) + if (__clk_lookup(clk->name)) { + pr_debug("%s: clk %s already initialized\n", + __func__, clk->name); + ret = -EEXIST; + goto out; + } + + /* check that clk_ops are sane. See Documentation/clk.txt */ + if (clk->ops->set_rate && + !(clk->ops->round_rate && clk->ops->recalc_rate)) { + pr_warning("%s: %s must implement .round_rate & .recalc_rate\n", + __func__, clk->name); + ret = -EINVAL; goto out; + } + + if (clk->ops->set_parent && !clk->ops->get_parent) { + pr_warning("%s: %s must implement .get_parent & .set_parent\n", + __func__, clk->name); + ret = -EINVAL; + goto out; + } /* throw a WARN if any entries in parent_names are NULL */ for (i = 0; i < clk->num_parents; i++) @@ -1302,45 +1305,118 @@ void __clk_init(struct device *dev, struct clk *clk) out: mutex_unlock(&prepare_lock); - return; + return ret; } /** + * __clk_register - register a clock and return a cookie. + * + * Same as clk_register, except that the .clk field inside hw shall point to a + * preallocated (generally statically allocated) struct clk. None of the fields + * of the struct clk need to be initialized. + * + * The data pointed to by .init and .clk field shall NOT be marked as init + * data. + * + * __clk_register is only exposed via clk-private.h and is intended for use with + * very large numbers of clocks that need to be statically initialized. It is + * a layering violation to include clk-private.h from any code which implements + * a clock's .ops; as such any statically initialized clock data MUST be in a + * separate C file from the logic that implements it's operations. Returns 0 + * on success, otherwise an error code. + */ +struct clk *__clk_register(struct device *dev, struct clk_hw *hw) +{ + int ret; + struct clk *clk; + + clk = hw->clk; + clk->name = hw->init->name; + clk->ops = hw->init->ops; + clk->hw = hw; + clk->flags = hw->init->flags; + clk->parent_names = hw->init->parent_names; + clk->num_parents = hw->init->num_parents; + + ret = __clk_init(dev, clk); + if (ret) + return ERR_PTR(ret); + + return clk; +} +EXPORT_SYMBOL_GPL(__clk_register); + +/** * clk_register - allocate a new clock, register it and return an opaque cookie * @dev: device that is registering this clock - * @name: clock name - * @ops: operations this clock supports * @hw: link to hardware-specific clock data - * @parent_names: array of string names for all possible parents - * @num_parents: number of possible parents - * @flags: framework-level hints and quirks * * clk_register is the primary interface for populating the clock tree with new * clock nodes. It returns a pointer to the newly allocated struct clk which * cannot be dereferenced by driver code but may be used in conjuction with the - * rest of the clock API. + * rest of the clock API. In the event of an error clk_register will return an + * error code; drivers must test for an error code after calling clk_register. */ -struct clk *clk_register(struct device *dev, const char *name, - const struct clk_ops *ops, struct clk_hw *hw, - char **parent_names, u8 num_parents, unsigned long flags) +struct clk *clk_register(struct device *dev, struct clk_hw *hw) { + int i, ret; struct clk *clk; clk = kzalloc(sizeof(*clk), GFP_KERNEL); - if (!clk) - return NULL; + if (!clk) { + pr_err("%s: could not allocate clk\n", __func__); + ret = -ENOMEM; + goto fail_out; + } - clk->name = name; - clk->ops = ops; + clk->name = kstrdup(hw->init->name, GFP_KERNEL); + if (!clk->name) { + pr_err("%s: could not allocate clk->name\n", __func__); + ret = -ENOMEM; + goto fail_name; + } + clk->ops = hw->init->ops; clk->hw = hw; - clk->flags = flags; - clk->parent_names = parent_names; - clk->num_parents = num_parents; + clk->flags = hw->init->flags; + clk->num_parents = hw->init->num_parents; hw->clk = clk; - __clk_init(dev, clk); + /* allocate local copy in case parent_names is __initdata */ + clk->parent_names = kzalloc((sizeof(char*) * clk->num_parents), + GFP_KERNEL); - return clk; + if (!clk->parent_names) { + pr_err("%s: could not allocate clk->parent_names\n", __func__); + ret = -ENOMEM; + goto fail_parent_names; + } + + + /* copy each string name in case parent_names is __initdata */ + for (i = 0; i < clk->num_parents; i++) { + clk->parent_names[i] = kstrdup(hw->init->parent_names[i], + GFP_KERNEL); + if (!clk->parent_names[i]) { + pr_err("%s: could not copy parent_names\n", __func__); + ret = -ENOMEM; + goto fail_parent_names_copy; + } + } + + ret = __clk_init(dev, clk); + if (!ret) + return clk; + +fail_parent_names_copy: + while (--i >= 0) + kfree(clk->parent_names[i]); + kfree(clk->parent_names); +fail_parent_names: + kfree(clk->name); +fail_name: + kfree(clk); +fail_out: + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(clk_register); diff --git a/drivers/clk/spear/Makefile b/drivers/clk/spear/Makefile new file mode 100644 index 000000000000..335886049c83 --- /dev/null +++ b/drivers/clk/spear/Makefile @@ -0,0 +1,8 @@ +# +# SPEAr Clock specific Makefile +# + +obj-y += clk.o clk-aux-synth.o clk-frac-synth.o clk-gpt-synth.o clk-vco-pll.o + +obj-$(CONFIG_ARCH_SPEAR3XX) += spear3xx_clock.o +obj-$(CONFIG_ARCH_SPEAR6XX) += spear6xx_clock.o diff --git a/drivers/clk/spear/clk-aux-synth.c b/drivers/clk/spear/clk-aux-synth.c new file mode 100644 index 000000000000..af34074e702b --- /dev/null +++ b/drivers/clk/spear/clk-aux-synth.c @@ -0,0 +1,198 @@ +/* + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * Auxiliary Synthesizer clock implementation + */ + +#define pr_fmt(fmt) "clk-aux-synth: " fmt + +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include "clk.h" + +/* + * DOC: Auxiliary Synthesizer clock + * + * Aux synth gives rate for different values of eq, x and y + * + * Fout from synthesizer can be given from two equations: + * Fout1 = (Fin * X/Y)/2 EQ1 + * Fout2 = Fin * X/Y EQ2 + */ + +#define to_clk_aux(_hw) container_of(_hw, struct clk_aux, hw) + +static struct aux_clk_masks default_aux_masks = { + .eq_sel_mask = AUX_EQ_SEL_MASK, + .eq_sel_shift = AUX_EQ_SEL_SHIFT, + .eq1_mask = AUX_EQ1_SEL, + .eq2_mask = AUX_EQ2_SEL, + .xscale_sel_mask = AUX_XSCALE_MASK, + .xscale_sel_shift = AUX_XSCALE_SHIFT, + .yscale_sel_mask = AUX_YSCALE_MASK, + .yscale_sel_shift = AUX_YSCALE_SHIFT, + .enable_bit = AUX_SYNT_ENB, +}; + +static unsigned long aux_calc_rate(struct clk_hw *hw, unsigned long prate, + int index) +{ + struct clk_aux *aux = to_clk_aux(hw); + struct aux_rate_tbl *rtbl = aux->rtbl; + u8 eq = rtbl[index].eq ? 1 : 2; + + return (((prate / 10000) * rtbl[index].xscale) / + (rtbl[index].yscale * eq)) * 10000; +} + +static long clk_aux_round_rate(struct clk_hw *hw, unsigned long drate, + unsigned long *prate) +{ + struct clk_aux *aux = to_clk_aux(hw); + int unused; + + return clk_round_rate_index(hw, drate, *prate, aux_calc_rate, + aux->rtbl_cnt, &unused); +} + +static unsigned long clk_aux_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_aux *aux = to_clk_aux(hw); + unsigned int num = 1, den = 1, val, eqn; + unsigned long flags = 0; + + if (aux->lock) + spin_lock_irqsave(aux->lock, flags); + + val = readl_relaxed(aux->reg); + + if (aux->lock) + spin_unlock_irqrestore(aux->lock, flags); + + eqn = (val >> aux->masks->eq_sel_shift) & aux->masks->eq_sel_mask; + if (eqn == aux->masks->eq1_mask) + den = 2; + + /* calculate numerator */ + num = (val >> aux->masks->xscale_sel_shift) & + aux->masks->xscale_sel_mask; + + /* calculate denominator */ + den *= (val >> aux->masks->yscale_sel_shift) & + aux->masks->yscale_sel_mask; + + if (!den) + return 0; + + return (((parent_rate / 10000) * num) / den) * 10000; +} + +/* Configures new clock rate of aux */ +static int clk_aux_set_rate(struct clk_hw *hw, unsigned long drate, + unsigned long prate) +{ + struct clk_aux *aux = to_clk_aux(hw); + struct aux_rate_tbl *rtbl = aux->rtbl; + unsigned long val, flags = 0; + int i; + + clk_round_rate_index(hw, drate, prate, aux_calc_rate, aux->rtbl_cnt, + &i); + + if (aux->lock) + spin_lock_irqsave(aux->lock, flags); + + val = readl_relaxed(aux->reg) & + ~(aux->masks->eq_sel_mask << aux->masks->eq_sel_shift); + val |= (rtbl[i].eq & aux->masks->eq_sel_mask) << + aux->masks->eq_sel_shift; + val &= ~(aux->masks->xscale_sel_mask << aux->masks->xscale_sel_shift); + val |= (rtbl[i].xscale & aux->masks->xscale_sel_mask) << + aux->masks->xscale_sel_shift; + val &= ~(aux->masks->yscale_sel_mask << aux->masks->yscale_sel_shift); + val |= (rtbl[i].yscale & aux->masks->yscale_sel_mask) << + aux->masks->yscale_sel_shift; + writel_relaxed(val, aux->reg); + + if (aux->lock) + spin_unlock_irqrestore(aux->lock, flags); + + return 0; +} + +static struct clk_ops clk_aux_ops = { + .recalc_rate = clk_aux_recalc_rate, + .round_rate = clk_aux_round_rate, + .set_rate = clk_aux_set_rate, +}; + +struct clk *clk_register_aux(const char *aux_name, const char *gate_name, + const char *parent_name, unsigned long flags, void __iomem *reg, + struct aux_clk_masks *masks, struct aux_rate_tbl *rtbl, + u8 rtbl_cnt, spinlock_t *lock, struct clk **gate_clk) +{ + struct clk_aux *aux; + struct clk_init_data init; + struct clk *clk; + + if (!aux_name || !parent_name || !reg || !rtbl || !rtbl_cnt) { + pr_err("Invalid arguments passed"); + return ERR_PTR(-EINVAL); + } + + aux = kzalloc(sizeof(*aux), GFP_KERNEL); + if (!aux) { + pr_err("could not allocate aux clk\n"); + return ERR_PTR(-ENOMEM); + } + + /* struct clk_aux assignments */ + if (!masks) + aux->masks = &default_aux_masks; + else + aux->masks = masks; + + aux->reg = reg; + aux->rtbl = rtbl; + aux->rtbl_cnt = rtbl_cnt; + aux->lock = lock; + aux->hw.init = &init; + + init.name = aux_name; + init.ops = &clk_aux_ops; + init.flags = flags; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(NULL, &aux->hw); + if (IS_ERR_OR_NULL(clk)) + goto free_aux; + + if (gate_name) { + struct clk *tgate_clk; + + tgate_clk = clk_register_gate(NULL, gate_name, aux_name, 0, reg, + aux->masks->enable_bit, 0, lock); + if (IS_ERR_OR_NULL(tgate_clk)) + goto free_aux; + + if (gate_clk) + *gate_clk = tgate_clk; + } + + return clk; + +free_aux: + kfree(aux); + pr_err("clk register failed\n"); + + return NULL; +} diff --git a/drivers/clk/spear/clk-frac-synth.c b/drivers/clk/spear/clk-frac-synth.c new file mode 100644 index 000000000000..4dbdb3fe18e0 --- /dev/null +++ b/drivers/clk/spear/clk-frac-synth.c @@ -0,0 +1,165 @@ +/* + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * Fractional Synthesizer clock implementation + */ + +#define pr_fmt(fmt) "clk-frac-synth: " fmt + +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include "clk.h" + +#define DIV_FACTOR_MASK 0x1FFFF + +/* + * DOC: Fractional Synthesizer clock + * + * Fout from synthesizer can be given from below equation: + * + * Fout= Fin/2*div (division factor) + * div is 17 bits:- + * 0-13 (fractional part) + * 14-16 (integer part) + * div is (16-14 bits).(13-0 bits) (in binary) + * + * Fout = Fin/(2 * div) + * Fout = ((Fin / 10000)/(2 * div)) * 10000 + * Fout = (2^14 * (Fin / 10000)/(2^14 * (2 * div))) * 10000 + * Fout = (((Fin / 10000) << 14)/(2 * (div << 14))) * 10000 + * + * div << 14 simply 17 bit value written at register. + * Max error due to scaling down by 10000 is 10 KHz + */ + +#define to_clk_frac(_hw) container_of(_hw, struct clk_frac, hw) + +static unsigned long frac_calc_rate(struct clk_hw *hw, unsigned long prate, + int index) +{ + struct clk_frac *frac = to_clk_frac(hw); + struct frac_rate_tbl *rtbl = frac->rtbl; + + prate /= 10000; + prate <<= 14; + prate /= (2 * rtbl[index].div); + prate *= 10000; + + return prate; +} + +static long clk_frac_round_rate(struct clk_hw *hw, unsigned long drate, + unsigned long *prate) +{ + struct clk_frac *frac = to_clk_frac(hw); + int unused; + + return clk_round_rate_index(hw, drate, *prate, frac_calc_rate, + frac->rtbl_cnt, &unused); +} + +static unsigned long clk_frac_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_frac *frac = to_clk_frac(hw); + unsigned long flags = 0; + unsigned int div = 1, val; + + if (frac->lock) + spin_lock_irqsave(frac->lock, flags); + + val = readl_relaxed(frac->reg); + + if (frac->lock) + spin_unlock_irqrestore(frac->lock, flags); + + div = val & DIV_FACTOR_MASK; + + if (!div) + return 0; + + parent_rate = parent_rate / 10000; + + parent_rate = (parent_rate << 14) / (2 * div); + return parent_rate * 10000; +} + +/* Configures new clock rate of frac */ +static int clk_frac_set_rate(struct clk_hw *hw, unsigned long drate, + unsigned long prate) +{ + struct clk_frac *frac = to_clk_frac(hw); + struct frac_rate_tbl *rtbl = frac->rtbl; + unsigned long flags = 0, val; + int i; + + clk_round_rate_index(hw, drate, prate, frac_calc_rate, frac->rtbl_cnt, + &i); + + if (frac->lock) + spin_lock_irqsave(frac->lock, flags); + + val = readl_relaxed(frac->reg) & ~DIV_FACTOR_MASK; + val |= rtbl[i].div & DIV_FACTOR_MASK; + writel_relaxed(val, frac->reg); + + if (frac->lock) + spin_unlock_irqrestore(frac->lock, flags); + + return 0; +} + +struct clk_ops clk_frac_ops = { + .recalc_rate = clk_frac_recalc_rate, + .round_rate = clk_frac_round_rate, + .set_rate = clk_frac_set_rate, +}; + +struct clk *clk_register_frac(const char *name, const char *parent_name, + unsigned long flags, void __iomem *reg, + struct frac_rate_tbl *rtbl, u8 rtbl_cnt, spinlock_t *lock) +{ + struct clk_init_data init; + struct clk_frac *frac; + struct clk *clk; + + if (!name || !parent_name || !reg || !rtbl || !rtbl_cnt) { + pr_err("Invalid arguments passed"); + return ERR_PTR(-EINVAL); + } + + frac = kzalloc(sizeof(*frac), GFP_KERNEL); + if (!frac) { + pr_err("could not allocate frac clk\n"); + return ERR_PTR(-ENOMEM); + } + + /* struct clk_frac assignments */ + frac->reg = reg; + frac->rtbl = rtbl; + frac->rtbl_cnt = rtbl_cnt; + frac->lock = lock; + frac->hw.init = &init; + + init.name = name; + init.ops = &clk_frac_ops; + init.flags = flags; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(NULL, &frac->hw); + if (!IS_ERR_OR_NULL(clk)) + return clk; + + pr_err("clk register failed\n"); + kfree(frac); + + return NULL; +} diff --git a/drivers/clk/spear/clk-gpt-synth.c b/drivers/clk/spear/clk-gpt-synth.c new file mode 100644 index 000000000000..b471c9762a97 --- /dev/null +++ b/drivers/clk/spear/clk-gpt-synth.c @@ -0,0 +1,154 @@ +/* + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * General Purpose Timer Synthesizer clock implementation + */ + +#define pr_fmt(fmt) "clk-gpt-synth: " fmt + +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include "clk.h" + +#define GPT_MSCALE_MASK 0xFFF +#define GPT_NSCALE_SHIFT 12 +#define GPT_NSCALE_MASK 0xF + +/* + * DOC: General Purpose Timer Synthesizer clock + * + * Calculates gpt synth clk rate for different values of mscale and nscale + * + * Fout= Fin/((2 ^ (N+1)) * (M+1)) + */ + +#define to_clk_gpt(_hw) container_of(_hw, struct clk_gpt, hw) + +static unsigned long gpt_calc_rate(struct clk_hw *hw, unsigned long prate, + int index) +{ + struct clk_gpt *gpt = to_clk_gpt(hw); + struct gpt_rate_tbl *rtbl = gpt->rtbl; + + prate /= ((1 << (rtbl[index].nscale + 1)) * (rtbl[index].mscale + 1)); + + return prate; +} + +static long clk_gpt_round_rate(struct clk_hw *hw, unsigned long drate, + unsigned long *prate) +{ + struct clk_gpt *gpt = to_clk_gpt(hw); + int unused; + + return clk_round_rate_index(hw, drate, *prate, gpt_calc_rate, + gpt->rtbl_cnt, &unused); +} + +static unsigned long clk_gpt_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_gpt *gpt = to_clk_gpt(hw); + unsigned long flags = 0; + unsigned int div = 1, val; + + if (gpt->lock) + spin_lock_irqsave(gpt->lock, flags); + + val = readl_relaxed(gpt->reg); + + if (gpt->lock) + spin_unlock_irqrestore(gpt->lock, flags); + + div += val & GPT_MSCALE_MASK; + div *= 1 << (((val >> GPT_NSCALE_SHIFT) & GPT_NSCALE_MASK) + 1); + + if (!div) + return 0; + + return parent_rate / div; +} + +/* Configures new clock rate of gpt */ +static int clk_gpt_set_rate(struct clk_hw *hw, unsigned long drate, + unsigned long prate) +{ + struct clk_gpt *gpt = to_clk_gpt(hw); + struct gpt_rate_tbl *rtbl = gpt->rtbl; + unsigned long flags = 0, val; + int i; + + clk_round_rate_index(hw, drate, prate, gpt_calc_rate, gpt->rtbl_cnt, + &i); + + if (gpt->lock) + spin_lock_irqsave(gpt->lock, flags); + + val = readl(gpt->reg) & ~GPT_MSCALE_MASK; + val &= ~(GPT_NSCALE_MASK << GPT_NSCALE_SHIFT); + + val |= rtbl[i].mscale & GPT_MSCALE_MASK; + val |= (rtbl[i].nscale & GPT_NSCALE_MASK) << GPT_NSCALE_SHIFT; + + writel_relaxed(val, gpt->reg); + + if (gpt->lock) + spin_unlock_irqrestore(gpt->lock, flags); + + return 0; +} + +static struct clk_ops clk_gpt_ops = { + .recalc_rate = clk_gpt_recalc_rate, + .round_rate = clk_gpt_round_rate, + .set_rate = clk_gpt_set_rate, +}; + +struct clk *clk_register_gpt(const char *name, const char *parent_name, unsigned + long flags, void __iomem *reg, struct gpt_rate_tbl *rtbl, u8 + rtbl_cnt, spinlock_t *lock) +{ + struct clk_init_data init; + struct clk_gpt *gpt; + struct clk *clk; + + if (!name || !parent_name || !reg || !rtbl || !rtbl_cnt) { + pr_err("Invalid arguments passed"); + return ERR_PTR(-EINVAL); + } + + gpt = kzalloc(sizeof(*gpt), GFP_KERNEL); + if (!gpt) { + pr_err("could not allocate gpt clk\n"); + return ERR_PTR(-ENOMEM); + } + + /* struct clk_gpt assignments */ + gpt->reg = reg; + gpt->rtbl = rtbl; + gpt->rtbl_cnt = rtbl_cnt; + gpt->lock = lock; + gpt->hw.init = &init; + + init.name = name; + init.ops = &clk_gpt_ops; + init.flags = flags; + init.parent_names = &parent_name; + init.num_parents = 1; + + clk = clk_register(NULL, &gpt->hw); + if (!IS_ERR_OR_NULL(clk)) + return clk; + + pr_err("clk register failed\n"); + kfree(gpt); + + return NULL; +} diff --git a/drivers/clk/spear/clk-vco-pll.c b/drivers/clk/spear/clk-vco-pll.c new file mode 100644 index 000000000000..dcd4bdf4b0d9 --- /dev/null +++ b/drivers/clk/spear/clk-vco-pll.c @@ -0,0 +1,363 @@ +/* + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * VCO-PLL clock implementation + */ + +#define pr_fmt(fmt) "clk-vco-pll: " fmt + +#include <linux/clk-provider.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/err.h> +#include "clk.h" + +/* + * DOC: VCO-PLL clock + * + * VCO and PLL rate are derived from following equations: + * + * In normal mode + * vco = (2 * M[15:8] * Fin)/N + * + * In Dithered mode + * vco = (2 * M[15:0] * Fin)/(256 * N) + * + * pll_rate = pll/2^p + * + * vco and pll are very closely bound to each other, "vco needs to program: + * mode, m & n" and "pll needs to program p", both share common enable/disable + * logic. + * + * clk_register_vco_pll() registers instances of both vco & pll. + * CLK_SET_RATE_PARENT flag is forced for pll, as it will always pass its + * set_rate to vco. A single rate table exists for both the clocks, which + * configures m, n and p. + */ + +/* PLL_CTR register masks */ +#define PLL_MODE_NORMAL 0 +#define PLL_MODE_FRACTION 1 +#define PLL_MODE_DITH_DSM 2 +#define PLL_MODE_DITH_SSM 3 +#define PLL_MODE_MASK 3 +#define PLL_MODE_SHIFT 3 +#define PLL_ENABLE 2 + +#define PLL_LOCK_SHIFT 0 +#define PLL_LOCK_MASK 1 + +/* PLL FRQ register masks */ +#define PLL_NORM_FDBK_M_MASK 0xFF +#define PLL_NORM_FDBK_M_SHIFT 24 +#define PLL_DITH_FDBK_M_MASK 0xFFFF +#define PLL_DITH_FDBK_M_SHIFT 16 +#define PLL_DIV_P_MASK 0x7 +#define PLL_DIV_P_SHIFT 8 +#define PLL_DIV_N_MASK 0xFF +#define PLL_DIV_N_SHIFT 0 + +#define to_clk_vco(_hw) container_of(_hw, struct clk_vco, hw) +#define to_clk_pll(_hw) container_of(_hw, struct clk_pll, hw) + +/* Calculates pll clk rate for specific value of mode, m, n and p */ +static unsigned long pll_calc_rate(struct pll_rate_tbl *rtbl, + unsigned long prate, int index, unsigned long *pll_rate) +{ + unsigned long rate = prate; + unsigned int mode; + + mode = rtbl[index].mode ? 256 : 1; + rate = (((2 * rate / 10000) * rtbl[index].m) / (mode * rtbl[index].n)); + + if (pll_rate) + *pll_rate = (rate / (1 << rtbl[index].p)) * 10000; + + return rate * 10000; +} + +static long clk_pll_round_rate_index(struct clk_hw *hw, unsigned long drate, + unsigned long *prate, int *index) +{ + struct clk_pll *pll = to_clk_pll(hw); + unsigned long prev_rate, vco_prev_rate, rate = 0; + unsigned long vco_parent_rate = + __clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk))); + + if (!prate) { + pr_err("%s: prate is must for pll clk\n", __func__); + return -EINVAL; + } + + for (*index = 0; *index < pll->vco->rtbl_cnt; (*index)++) { + prev_rate = rate; + vco_prev_rate = *prate; + *prate = pll_calc_rate(pll->vco->rtbl, vco_parent_rate, *index, + &rate); + if (drate < rate) { + /* previous clock was best */ + if (*index) { + rate = prev_rate; + *prate = vco_prev_rate; + (*index)--; + } + break; + } + } + + return rate; +} + +static long clk_pll_round_rate(struct clk_hw *hw, unsigned long drate, + unsigned long *prate) +{ + int unused; + + return clk_pll_round_rate_index(hw, drate, prate, &unused); +} + +static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, unsigned long + parent_rate) +{ + struct clk_pll *pll = to_clk_pll(hw); + unsigned long flags = 0; + unsigned int p; + + if (pll->vco->lock) + spin_lock_irqsave(pll->vco->lock, flags); + + p = readl_relaxed(pll->vco->cfg_reg); + + if (pll->vco->lock) + spin_unlock_irqrestore(pll->vco->lock, flags); + + p = (p >> PLL_DIV_P_SHIFT) & PLL_DIV_P_MASK; + + return parent_rate / (1 << p); +} + +static int clk_pll_set_rate(struct clk_hw *hw, unsigned long drate, + unsigned long prate) +{ + struct clk_pll *pll = to_clk_pll(hw); + struct pll_rate_tbl *rtbl = pll->vco->rtbl; + unsigned long flags = 0, val; + int i; + + clk_pll_round_rate_index(hw, drate, NULL, &i); + + if (pll->vco->lock) + spin_lock_irqsave(pll->vco->lock, flags); + + val = readl_relaxed(pll->vco->cfg_reg); + val &= ~(PLL_DIV_P_MASK << PLL_DIV_P_SHIFT); + val |= (rtbl[i].p & PLL_DIV_P_MASK) << PLL_DIV_P_SHIFT; + writel_relaxed(val, pll->vco->cfg_reg); + + if (pll->vco->lock) + spin_unlock_irqrestore(pll->vco->lock, flags); + + return 0; +} + +static struct clk_ops clk_pll_ops = { + .recalc_rate = clk_pll_recalc_rate, + .round_rate = clk_pll_round_rate, + .set_rate = clk_pll_set_rate, +}; + +static inline unsigned long vco_calc_rate(struct clk_hw *hw, + unsigned long prate, int index) +{ + struct clk_vco *vco = to_clk_vco(hw); + + return pll_calc_rate(vco->rtbl, prate, index, NULL); +} + +static long clk_vco_round_rate(struct clk_hw *hw, unsigned long drate, + unsigned long *prate) +{ + struct clk_vco *vco = to_clk_vco(hw); + int unused; + + return clk_round_rate_index(hw, drate, *prate, vco_calc_rate, + vco->rtbl_cnt, &unused); +} + +static unsigned long clk_vco_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_vco *vco = to_clk_vco(hw); + unsigned long flags = 0; + unsigned int num = 2, den = 0, val, mode = 0; + + if (vco->lock) + spin_lock_irqsave(vco->lock, flags); + + mode = (readl_relaxed(vco->mode_reg) >> PLL_MODE_SHIFT) & PLL_MODE_MASK; + + val = readl_relaxed(vco->cfg_reg); + + if (vco->lock) + spin_unlock_irqrestore(vco->lock, flags); + + den = (val >> PLL_DIV_N_SHIFT) & PLL_DIV_N_MASK; + + /* calculate numerator & denominator */ + if (!mode) { + /* Normal mode */ + num *= (val >> PLL_NORM_FDBK_M_SHIFT) & PLL_NORM_FDBK_M_MASK; + } else { + /* Dithered mode */ + num *= (val >> PLL_DITH_FDBK_M_SHIFT) & PLL_DITH_FDBK_M_MASK; + den *= 256; + } + + if (!den) { + WARN(1, "%s: denominator can't be zero\n", __func__); + return 0; + } + + return (((parent_rate / 10000) * num) / den) * 10000; +} + +/* Configures new clock rate of vco */ +static int clk_vco_set_rate(struct clk_hw *hw, unsigned long drate, + unsigned long prate) +{ + struct clk_vco *vco = to_clk_vco(hw); + struct pll_rate_tbl *rtbl = vco->rtbl; + unsigned long flags = 0, val; + int i; + + clk_round_rate_index(hw, drate, prate, vco_calc_rate, vco->rtbl_cnt, + &i); + + if (vco->lock) + spin_lock_irqsave(vco->lock, flags); + + val = readl_relaxed(vco->mode_reg); + val &= ~(PLL_MODE_MASK << PLL_MODE_SHIFT); + val |= (rtbl[i].mode & PLL_MODE_MASK) << PLL_MODE_SHIFT; + writel_relaxed(val, vco->mode_reg); + + val = readl_relaxed(vco->cfg_reg); + val &= ~(PLL_DIV_N_MASK << PLL_DIV_N_SHIFT); + val |= (rtbl[i].n & PLL_DIV_N_MASK) << PLL_DIV_N_SHIFT; + + val &= ~(PLL_DITH_FDBK_M_MASK << PLL_DITH_FDBK_M_SHIFT); + if (rtbl[i].mode) + val |= (rtbl[i].m & PLL_DITH_FDBK_M_MASK) << + PLL_DITH_FDBK_M_SHIFT; + else + val |= (rtbl[i].m & PLL_NORM_FDBK_M_MASK) << + PLL_NORM_FDBK_M_SHIFT; + + writel_relaxed(val, vco->cfg_reg); + + if (vco->lock) + spin_unlock_irqrestore(vco->lock, flags); + + return 0; +} + +static struct clk_ops clk_vco_ops = { + .recalc_rate = clk_vco_recalc_rate, + .round_rate = clk_vco_round_rate, + .set_rate = clk_vco_set_rate, +}; + +struct clk *clk_register_vco_pll(const char *vco_name, const char *pll_name, + const char *vco_gate_name, const char *parent_name, + unsigned long flags, void __iomem *mode_reg, void __iomem + *cfg_reg, struct pll_rate_tbl *rtbl, u8 rtbl_cnt, + spinlock_t *lock, struct clk **pll_clk, + struct clk **vco_gate_clk) +{ + struct clk_vco *vco; + struct clk_pll *pll; + struct clk *vco_clk, *tpll_clk, *tvco_gate_clk; + struct clk_init_data vco_init, pll_init; + const char **vco_parent_name; + + if (!vco_name || !pll_name || !parent_name || !mode_reg || !cfg_reg || + !rtbl || !rtbl_cnt) { + pr_err("Invalid arguments passed"); + return ERR_PTR(-EINVAL); + } + + vco = kzalloc(sizeof(*vco), GFP_KERNEL); + if (!vco) { + pr_err("could not allocate vco clk\n"); + return ERR_PTR(-ENOMEM); + } + + pll = kzalloc(sizeof(*pll), GFP_KERNEL); + if (!pll) { + pr_err("could not allocate pll clk\n"); + goto free_vco; + } + + /* struct clk_vco assignments */ + vco->mode_reg = mode_reg; + vco->cfg_reg = cfg_reg; + vco->rtbl = rtbl; + vco->rtbl_cnt = rtbl_cnt; + vco->lock = lock; + vco->hw.init = &vco_init; + + pll->vco = vco; + pll->hw.init = &pll_init; + + if (vco_gate_name) { + tvco_gate_clk = clk_register_gate(NULL, vco_gate_name, + parent_name, 0, mode_reg, PLL_ENABLE, 0, lock); + if (IS_ERR_OR_NULL(tvco_gate_clk)) + goto free_pll; + + if (vco_gate_clk) + *vco_gate_clk = tvco_gate_clk; + vco_parent_name = &vco_gate_name; + } else { + vco_parent_name = &parent_name; + } + + vco_init.name = vco_name; + vco_init.ops = &clk_vco_ops; + vco_init.flags = flags; + vco_init.parent_names = vco_parent_name; + vco_init.num_parents = 1; + + pll_init.name = pll_name; + pll_init.ops = &clk_pll_ops; + pll_init.flags = CLK_SET_RATE_PARENT; + pll_init.parent_names = &vco_name; + pll_init.num_parents = 1; + + vco_clk = clk_register(NULL, &vco->hw); + if (IS_ERR_OR_NULL(vco_clk)) + goto free_pll; + + tpll_clk = clk_register(NULL, &pll->hw); + if (IS_ERR_OR_NULL(tpll_clk)) + goto free_pll; + + if (pll_clk) + *pll_clk = tpll_clk; + + return vco_clk; + +free_pll: + kfree(pll); +free_vco: + kfree(vco); + + pr_err("Failed to register vco pll clock\n"); + + return ERR_PTR(-ENOMEM); +} diff --git a/drivers/clk/spear/clk.c b/drivers/clk/spear/clk.c new file mode 100644 index 000000000000..376d4e5ff326 --- /dev/null +++ b/drivers/clk/spear/clk.c @@ -0,0 +1,36 @@ +/* + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + * + * SPEAr clk - Common routines + */ + +#include <linux/clk-provider.h> +#include <linux/types.h> +#include "clk.h" + +long clk_round_rate_index(struct clk_hw *hw, unsigned long drate, + unsigned long parent_rate, clk_calc_rate calc_rate, u8 rtbl_cnt, + int *index) +{ + unsigned long prev_rate, rate = 0; + + for (*index = 0; *index < rtbl_cnt; (*index)++) { + prev_rate = rate; + rate = calc_rate(hw, parent_rate, *index); + if (drate < rate) { + /* previous clock was best */ + if (*index) { + rate = prev_rate; + (*index)--; + } + break; + } + } + + return rate; +} diff --git a/drivers/clk/spear/clk.h b/drivers/clk/spear/clk.h new file mode 100644 index 000000000000..3321c46a071c --- /dev/null +++ b/drivers/clk/spear/clk.h @@ -0,0 +1,134 @@ +/* + * Clock framework definitions for SPEAr platform + * + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __SPEAR_CLK_H +#define __SPEAR_CLK_H + +#include <linux/clk-provider.h> +#include <linux/spinlock_types.h> +#include <linux/types.h> + +/* Auxiliary Synth clk */ +/* Default masks */ +#define AUX_EQ_SEL_SHIFT 30 +#define AUX_EQ_SEL_MASK 1 +#define AUX_EQ1_SEL 0 +#define AUX_EQ2_SEL 1 +#define AUX_XSCALE_SHIFT 16 +#define AUX_XSCALE_MASK 0xFFF +#define AUX_YSCALE_SHIFT 0 +#define AUX_YSCALE_MASK 0xFFF +#define AUX_SYNT_ENB 31 + +struct aux_clk_masks { + u32 eq_sel_mask; + u32 eq_sel_shift; + u32 eq1_mask; + u32 eq2_mask; + u32 xscale_sel_mask; + u32 xscale_sel_shift; + u32 yscale_sel_mask; + u32 yscale_sel_shift; + u32 enable_bit; +}; + +struct aux_rate_tbl { + u16 xscale; + u16 yscale; + u8 eq; +}; + +struct clk_aux { + struct clk_hw hw; + void __iomem *reg; + struct aux_clk_masks *masks; + struct aux_rate_tbl *rtbl; + u8 rtbl_cnt; + spinlock_t *lock; +}; + +/* Fractional Synth clk */ +struct frac_rate_tbl { + u32 div; +}; + +struct clk_frac { + struct clk_hw hw; + void __iomem *reg; + struct frac_rate_tbl *rtbl; + u8 rtbl_cnt; + spinlock_t *lock; +}; + +/* GPT clk */ +struct gpt_rate_tbl { + u16 mscale; + u16 nscale; +}; + +struct clk_gpt { + struct clk_hw hw; + void __iomem *reg; + struct gpt_rate_tbl *rtbl; + u8 rtbl_cnt; + spinlock_t *lock; +}; + +/* VCO-PLL clk */ +struct pll_rate_tbl { + u8 mode; + u16 m; + u8 n; + u8 p; +}; + +struct clk_vco { + struct clk_hw hw; + void __iomem *mode_reg; + void __iomem *cfg_reg; + struct pll_rate_tbl *rtbl; + u8 rtbl_cnt; + spinlock_t *lock; +}; + +struct clk_pll { + struct clk_hw hw; + struct clk_vco *vco; + const char *parent[1]; + spinlock_t *lock; +}; + +typedef unsigned long (*clk_calc_rate)(struct clk_hw *hw, unsigned long prate, + int index); + +/* clk register routines */ +struct clk *clk_register_aux(const char *aux_name, const char *gate_name, + const char *parent_name, unsigned long flags, void __iomem *reg, + struct aux_clk_masks *masks, struct aux_rate_tbl *rtbl, + u8 rtbl_cnt, spinlock_t *lock, struct clk **gate_clk); +struct clk *clk_register_frac(const char *name, const char *parent_name, + unsigned long flags, void __iomem *reg, + struct frac_rate_tbl *rtbl, u8 rtbl_cnt, spinlock_t *lock); +struct clk *clk_register_gpt(const char *name, const char *parent_name, unsigned + long flags, void __iomem *reg, struct gpt_rate_tbl *rtbl, u8 + rtbl_cnt, spinlock_t *lock); +struct clk *clk_register_vco_pll(const char *vco_name, const char *pll_name, + const char *vco_gate_name, const char *parent_name, + unsigned long flags, void __iomem *mode_reg, void __iomem + *cfg_reg, struct pll_rate_tbl *rtbl, u8 rtbl_cnt, + spinlock_t *lock, struct clk **pll_clk, + struct clk **vco_gate_clk); + +long clk_round_rate_index(struct clk_hw *hw, unsigned long drate, + unsigned long parent_rate, clk_calc_rate calc_rate, u8 rtbl_cnt, + int *index); + +#endif /* __SPEAR_CLK_H */ diff --git a/drivers/clk/spear/spear3xx_clock.c b/drivers/clk/spear/spear3xx_clock.c new file mode 100644 index 000000000000..440bb3e4c971 --- /dev/null +++ b/drivers/clk/spear/spear3xx_clock.c @@ -0,0 +1,612 @@ +/* + * SPEAr3xx machines clock framework source file + * + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of_platform.h> +#include <linux/spinlock_types.h> +#include <mach/misc_regs.h> +#include "clk.h" + +static DEFINE_SPINLOCK(_lock); + +#define PLL1_CTR (MISC_BASE + 0x008) +#define PLL1_FRQ (MISC_BASE + 0x00C) +#define PLL2_CTR (MISC_BASE + 0x014) +#define PLL2_FRQ (MISC_BASE + 0x018) +#define PLL_CLK_CFG (MISC_BASE + 0x020) + /* PLL_CLK_CFG register masks */ + #define MCTR_CLK_SHIFT 28 + #define MCTR_CLK_MASK 3 + +#define CORE_CLK_CFG (MISC_BASE + 0x024) + /* CORE CLK CFG register masks */ + #define GEN_SYNTH2_3_CLK_SHIFT 18 + #define GEN_SYNTH2_3_CLK_MASK 1 + + #define HCLK_RATIO_SHIFT 10 + #define HCLK_RATIO_MASK 2 + #define PCLK_RATIO_SHIFT 8 + #define PCLK_RATIO_MASK 2 + +#define PERIP_CLK_CFG (MISC_BASE + 0x028) + /* PERIP_CLK_CFG register masks */ + #define UART_CLK_SHIFT 4 + #define UART_CLK_MASK 1 + #define FIRDA_CLK_SHIFT 5 + #define FIRDA_CLK_MASK 2 + #define GPT0_CLK_SHIFT 8 + #define GPT1_CLK_SHIFT 11 + #define GPT2_CLK_SHIFT 12 + #define GPT_CLK_MASK 1 + +#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) + /* PERIP1_CLK_ENB register masks */ + #define UART_CLK_ENB 3 + #define SSP_CLK_ENB 5 + #define I2C_CLK_ENB 7 + #define JPEG_CLK_ENB 8 + #define FIRDA_CLK_ENB 10 + #define GPT1_CLK_ENB 11 + #define GPT2_CLK_ENB 12 + #define ADC_CLK_ENB 15 + #define RTC_CLK_ENB 17 + #define GPIO_CLK_ENB 18 + #define DMA_CLK_ENB 19 + #define SMI_CLK_ENB 21 + #define GMAC_CLK_ENB 23 + #define USBD_CLK_ENB 24 + #define USBH_CLK_ENB 25 + #define C3_CLK_ENB 31 + +#define RAS_CLK_ENB (MISC_BASE + 0x034) + #define RAS_AHB_CLK_ENB 0 + #define RAS_PLL1_CLK_ENB 1 + #define RAS_APB_CLK_ENB 2 + #define RAS_32K_CLK_ENB 3 + #define RAS_24M_CLK_ENB 4 + #define RAS_48M_CLK_ENB 5 + #define RAS_PLL2_CLK_ENB 7 + #define RAS_SYNT0_CLK_ENB 8 + #define RAS_SYNT1_CLK_ENB 9 + #define RAS_SYNT2_CLK_ENB 10 + #define RAS_SYNT3_CLK_ENB 11 + +#define PRSC0_CLK_CFG (MISC_BASE + 0x044) +#define PRSC1_CLK_CFG (MISC_BASE + 0x048) +#define PRSC2_CLK_CFG (MISC_BASE + 0x04C) +#define AMEM_CLK_CFG (MISC_BASE + 0x050) + #define AMEM_CLK_ENB 0 + +#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) +#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) +#define UART_CLK_SYNT (MISC_BASE + 0x064) +#define GMAC_CLK_SYNT (MISC_BASE + 0x068) +#define GEN0_CLK_SYNT (MISC_BASE + 0x06C) +#define GEN1_CLK_SYNT (MISC_BASE + 0x070) +#define GEN2_CLK_SYNT (MISC_BASE + 0x074) +#define GEN3_CLK_SYNT (MISC_BASE + 0x078) + +/* pll rate configuration table, in ascending order of rates */ +static struct pll_rate_tbl pll_rtbl[] = { + {.mode = 0, .m = 0x53, .n = 0x0C, .p = 0x1}, /* vco 332 & pll 166 MHz */ + {.mode = 0, .m = 0x85, .n = 0x0C, .p = 0x1}, /* vco 532 & pll 266 MHz */ + {.mode = 0, .m = 0xA6, .n = 0x0C, .p = 0x1}, /* vco 664 & pll 332 MHz */ +}; + +/* aux rate configuration table, in ascending order of rates */ +static struct aux_rate_tbl aux_rtbl[] = { + /* For PLL1 = 332 MHz */ + {.xscale = 2, .yscale = 27, .eq = 0}, /* 12.296 MHz */ + {.xscale = 2, .yscale = 8, .eq = 0}, /* 41.5 MHz */ + {.xscale = 2, .yscale = 4, .eq = 0}, /* 83 MHz */ + {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ +}; + +/* gpt rate configuration table, in ascending order of rates */ +static struct gpt_rate_tbl gpt_rtbl[] = { + /* For pll1 = 332 MHz */ + {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ + {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ + {.mscale = 1, .nscale = 0}, /* 83 MHz */ +}; + +/* clock parents */ +static const char *uart0_parents[] = { "pll3_48m_clk", "uart_synth_gate_clk", }; +static const char *firda_parents[] = { "pll3_48m_clk", "firda_synth_gate_clk", +}; +static const char *gpt0_parents[] = { "pll3_48m_clk", "gpt0_synth_clk", }; +static const char *gpt1_parents[] = { "pll3_48m_clk", "gpt1_synth_clk", }; +static const char *gpt2_parents[] = { "pll3_48m_clk", "gpt2_synth_clk", }; +static const char *gen2_3_parents[] = { "pll1_clk", "pll2_clk", }; +static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none", + "pll2_clk", }; + +#ifdef CONFIG_MACH_SPEAR300 +static void __init spear300_clk_init(void) +{ + struct clk *clk; + + clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_48m_clk", 0, + 1, 1); + clk_register_clkdev(clk, NULL, "60000000.clcd"); + + clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "94000000.flash"); + + clk = clk_register_fixed_factor(NULL, "sdhci_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "70000000.sdhci"); + + clk = clk_register_fixed_factor(NULL, "gpio1_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "a9000000.gpio"); + + clk = clk_register_fixed_factor(NULL, "kbd_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "a0000000.kbd"); +} +#endif + +/* array of all spear 310 clock lookups */ +#ifdef CONFIG_MACH_SPEAR310 +static void __init spear310_clk_init(void) +{ + struct clk *clk; + + clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, "emi", NULL); + + clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "44000000.flash"); + + clk = clk_register_fixed_factor(NULL, "tdm_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "tdm"); + + clk = clk_register_fixed_factor(NULL, "uart1_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "b2000000.serial"); + + clk = clk_register_fixed_factor(NULL, "uart2_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "b2080000.serial"); + + clk = clk_register_fixed_factor(NULL, "uart3_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "b2100000.serial"); + + clk = clk_register_fixed_factor(NULL, "uart4_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "b2180000.serial"); + + clk = clk_register_fixed_factor(NULL, "uart5_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "b2200000.serial"); +} +#endif + +/* array of all spear 320 clock lookups */ +#ifdef CONFIG_MACH_SPEAR320 + #define SMII_PCLK_SHIFT 18 + #define SMII_PCLK_MASK 2 + #define SMII_PCLK_VAL_PAD 0x0 + #define SMII_PCLK_VAL_PLL2 0x1 + #define SMII_PCLK_VAL_SYNTH0 0x2 + #define SDHCI_PCLK_SHIFT 15 + #define SDHCI_PCLK_MASK 1 + #define SDHCI_PCLK_VAL_48M 0x0 + #define SDHCI_PCLK_VAL_SYNTH3 0x1 + #define I2S_REF_PCLK_SHIFT 8 + #define I2S_REF_PCLK_MASK 1 + #define I2S_REF_PCLK_SYNTH_VAL 0x1 + #define I2S_REF_PCLK_PLL2_VAL 0x0 + #define UART1_PCLK_SHIFT 6 + #define UART1_PCLK_MASK 1 + #define SPEAR320_UARTX_PCLK_VAL_SYNTH1 0x0 + #define SPEAR320_UARTX_PCLK_VAL_APB 0x1 + +static const char *i2s_ref_parents[] = { "ras_pll2_clk", + "ras_gen2_synth_gate_clk", }; +static const char *sdhci_parents[] = { "ras_pll3_48m_clk", + "ras_gen3_synth_gate_clk", +}; +static const char *smii0_parents[] = { "smii_125m_pad", "ras_pll2_clk", + "ras_gen0_synth_gate_clk", }; +static const char *uartx_parents[] = { "ras_gen1_synth_gate_clk", "ras_apb_clk", +}; + +static void __init spear320_clk_init(void) +{ + struct clk *clk; + + clk = clk_register_fixed_rate(NULL, "smii_125m_pad_clk", NULL, + CLK_IS_ROOT, 125000000); + clk_register_clkdev(clk, "smii_125m_pad", NULL); + + clk = clk_register_fixed_factor(NULL, "clcd_clk", "ras_pll3_48m_clk", 0, + 1, 1); + clk_register_clkdev(clk, NULL, "90000000.clcd"); + + clk = clk_register_fixed_factor(NULL, "emi_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, "emi", NULL); + + clk = clk_register_fixed_factor(NULL, "fsmc_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "4c000000.flash"); + + clk = clk_register_fixed_factor(NULL, "i2c1_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "a7000000.i2c"); + + clk = clk_register_fixed_factor(NULL, "pwm_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, "pwm", NULL); + + clk = clk_register_fixed_factor(NULL, "ssp1_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "a5000000.spi"); + + clk = clk_register_fixed_factor(NULL, "ssp2_clk", "ras_ahb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "a6000000.spi"); + + clk = clk_register_fixed_factor(NULL, "can0_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "c_can_platform.0"); + + clk = clk_register_fixed_factor(NULL, "can1_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "c_can_platform.1"); + + clk = clk_register_fixed_factor(NULL, "i2s_clk", "ras_apb_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "i2s"); + + clk = clk_register_mux(NULL, "i2s_ref_clk", i2s_ref_parents, + ARRAY_SIZE(i2s_ref_parents), 0, SPEAR320_CONTROL_REG, + I2S_REF_PCLK_SHIFT, I2S_REF_PCLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "i2s_ref_clk", NULL); + + clk = clk_register_fixed_factor(NULL, "i2s_sclk", "i2s_ref_clk", 0, 1, + 4); + clk_register_clkdev(clk, "i2s_sclk", NULL); + + clk = clk_register_mux(NULL, "rs485_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_RS485_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "a9300000.serial"); + + clk = clk_register_mux(NULL, "sdhci_clk", sdhci_parents, + ARRAY_SIZE(sdhci_parents), 0, SPEAR320_CONTROL_REG, + SDHCI_PCLK_SHIFT, SDHCI_PCLK_MASK, 0, &_lock); + clk_register_clkdev(clk, NULL, "70000000.sdhci"); + + clk = clk_register_mux(NULL, "smii_pclk", smii0_parents, + ARRAY_SIZE(smii0_parents), 0, SPEAR320_CONTROL_REG, + SMII_PCLK_SHIFT, SMII_PCLK_MASK, 0, &_lock); + clk_register_clkdev(clk, NULL, "smii_pclk"); + + clk = clk_register_fixed_factor(NULL, "smii_clk", "smii_pclk", 0, 1, 1); + clk_register_clkdev(clk, NULL, "smii"); + + clk = clk_register_mux(NULL, "uart1_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_CONTROL_REG, + UART1_PCLK_SHIFT, UART1_PCLK_MASK, 0, &_lock); + clk_register_clkdev(clk, NULL, "a3000000.serial"); + + clk = clk_register_mux(NULL, "uart2_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_UART2_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "a4000000.serial"); + + clk = clk_register_mux(NULL, "uart3_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_UART3_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "a9100000.serial"); + + clk = clk_register_mux(NULL, "uart4_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_UART4_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "a9200000.serial"); + + clk = clk_register_mux(NULL, "uart5_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_UART5_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "60000000.serial"); + + clk = clk_register_mux(NULL, "uart6_clk", uartx_parents, + ARRAY_SIZE(uartx_parents), 0, SPEAR320_EXT_CTRL_REG, + SPEAR320_UART6_PCLK_SHIFT, SPEAR320_UARTX_PCLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, NULL, "60100000.serial"); +} +#endif + +void __init spear3xx_clk_init(void) +{ + struct clk *clk, *clk1; + + clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 0); + clk_register_clkdev(clk, "apb_pclk", NULL); + + clk = clk_register_fixed_rate(NULL, "osc_32k_clk", NULL, CLK_IS_ROOT, + 32000); + clk_register_clkdev(clk, "osc_32k_clk", NULL); + + clk = clk_register_fixed_rate(NULL, "osc_24m_clk", NULL, CLK_IS_ROOT, + 24000000); + clk_register_clkdev(clk, "osc_24m_clk", NULL); + + /* clock derived from 32 KHz osc clk */ + clk = clk_register_gate(NULL, "rtc-spear", "osc_32k_clk", 0, + PERIP1_CLK_ENB, RTC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc900000.rtc"); + + /* clock derived from 24 MHz osc clk */ + clk = clk_register_fixed_rate(NULL, "pll3_48m_clk", "osc_24m_clk", 0, + 48000000); + clk_register_clkdev(clk, "pll3_48m_clk", NULL); + + clk = clk_register_fixed_factor(NULL, "wdt_clk", "osc_24m_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "fc880000.wdt"); + + clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, + "osc_24m_clk", 0, PLL1_CTR, PLL1_FRQ, pll_rtbl, + ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); + clk_register_clkdev(clk, "vco1_clk", NULL); + clk_register_clkdev(clk1, "pll1_clk", NULL); + + clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, + "osc_24m_clk", 0, PLL2_CTR, PLL2_FRQ, pll_rtbl, + ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); + clk_register_clkdev(clk, "vco2_clk", NULL); + clk_register_clkdev(clk1, "pll2_clk", NULL); + + /* clock derived from pll1 clk */ + clk = clk_register_fixed_factor(NULL, "cpu_clk", "pll1_clk", 0, 1, 1); + clk_register_clkdev(clk, "cpu_clk", NULL); + + clk = clk_register_divider(NULL, "ahb_clk", "pll1_clk", + CLK_SET_RATE_PARENT, CORE_CLK_CFG, HCLK_RATIO_SHIFT, + HCLK_RATIO_MASK, 0, &_lock); + clk_register_clkdev(clk, "ahb_clk", NULL); + + clk = clk_register_aux("uart_synth_clk", "uart_synth_gate_clk", + "pll1_clk", 0, UART_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "uart_synth_clk", NULL); + clk_register_clkdev(clk1, "uart_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "uart0_mux_clk", uart0_parents, + ARRAY_SIZE(uart0_parents), 0, PERIP_CLK_CFG, + UART_CLK_SHIFT, UART_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "uart0_mux_clk", NULL); + + clk = clk_register_gate(NULL, "uart0", "uart0_mux_clk", 0, + PERIP1_CLK_ENB, UART_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0000000.serial"); + + clk = clk_register_aux("firda_synth_clk", "firda_synth_gate_clk", + "pll1_clk", 0, FIRDA_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "firda_synth_clk", NULL); + clk_register_clkdev(clk1, "firda_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "firda_mux_clk", firda_parents, + ARRAY_SIZE(firda_parents), 0, PERIP_CLK_CFG, + FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "firda_mux_clk", NULL); + + clk = clk_register_gate(NULL, "firda_clk", "firda_mux_clk", 0, + PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "firda"); + + /* gpt clocks */ + clk_register_gpt("gpt0_synth_clk", "pll1_clk", 0, PRSC0_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk = clk_register_mux(NULL, "gpt0_clk", gpt0_parents, + ARRAY_SIZE(gpt0_parents), 0, PERIP_CLK_CFG, + GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt0"); + + clk_register_gpt("gpt1_synth_clk", "pll1_clk", 0, PRSC1_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt1_parents, + ARRAY_SIZE(gpt1_parents), 0, PERIP_CLK_CFG, + GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "gpt1_mux_clk", NULL); + clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0, + PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt1"); + + clk_register_gpt("gpt2_synth_clk", "pll1_clk", 0, PRSC2_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt2_parents, + ARRAY_SIZE(gpt2_parents), 0, PERIP_CLK_CFG, + GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "gpt2_mux_clk", NULL); + clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0, + PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt2"); + + /* general synths clocks */ + clk = clk_register_aux("gen0_synth_clk", "gen0_synth_gate_clk", + "pll1_clk", 0, GEN0_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "gen0_synth_clk", NULL); + clk_register_clkdev(clk1, "gen0_synth_gate_clk", NULL); + + clk = clk_register_aux("gen1_synth_clk", "gen1_synth_gate_clk", + "pll1_clk", 0, GEN1_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "gen1_synth_clk", NULL); + clk_register_clkdev(clk1, "gen1_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "gen2_3_parent_clk", gen2_3_parents, + ARRAY_SIZE(gen2_3_parents), 0, CORE_CLK_CFG, + GEN_SYNTH2_3_CLK_SHIFT, GEN_SYNTH2_3_CLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, "gen2_3_parent_clk", NULL); + + clk = clk_register_aux("gen2_synth_clk", "gen2_synth_gate_clk", + "gen2_3_parent_clk", 0, GEN2_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "gen2_synth_clk", NULL); + clk_register_clkdev(clk1, "gen2_synth_gate_clk", NULL); + + clk = clk_register_aux("gen3_synth_clk", "gen3_synth_gate_clk", + "gen2_3_parent_clk", 0, GEN3_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "gen3_synth_clk", NULL); + clk_register_clkdev(clk1, "gen3_synth_gate_clk", NULL); + + /* clock derived from pll3 clk */ + clk = clk_register_gate(NULL, "usbh_clk", "pll3_48m_clk", 0, + PERIP1_CLK_ENB, USBH_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "usbh_clk", NULL); + + clk = clk_register_fixed_factor(NULL, "usbh.0_clk", "usbh_clk", 0, 1, + 1); + clk_register_clkdev(clk, "usbh.0_clk", NULL); + + clk = clk_register_fixed_factor(NULL, "usbh.1_clk", "usbh_clk", 0, 1, + 1); + clk_register_clkdev(clk, "usbh.1_clk", NULL); + + clk = clk_register_gate(NULL, "usbd_clk", "pll3_48m_clk", 0, + PERIP1_CLK_ENB, USBD_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "designware_udc"); + + /* clock derived from ahb clk */ + clk = clk_register_fixed_factor(NULL, "ahbmult2_clk", "ahb_clk", 0, 2, + 1); + clk_register_clkdev(clk, "ahbmult2_clk", NULL); + + clk = clk_register_mux(NULL, "ddr_clk", ddr_parents, + ARRAY_SIZE(ddr_parents), 0, PLL_CLK_CFG, MCTR_CLK_SHIFT, + MCTR_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "ddr_clk", NULL); + + clk = clk_register_divider(NULL, "apb_clk", "ahb_clk", + CLK_SET_RATE_PARENT, CORE_CLK_CFG, PCLK_RATIO_SHIFT, + PCLK_RATIO_MASK, 0, &_lock); + clk_register_clkdev(clk, "apb_clk", NULL); + + clk = clk_register_gate(NULL, "amem_clk", "ahb_clk", 0, AMEM_CLK_CFG, + AMEM_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "amem_clk", NULL); + + clk = clk_register_gate(NULL, "c3_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + C3_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "c3_clk"); + + clk = clk_register_gate(NULL, "dma_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + DMA_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc400000.dma"); + + clk = clk_register_gate(NULL, "gmac_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + GMAC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "e0800000.eth"); + + clk = clk_register_gate(NULL, "i2c0_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + I2C_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0180000.i2c"); + + clk = clk_register_gate(NULL, "jpeg_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + JPEG_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "jpeg"); + + clk = clk_register_gate(NULL, "smi_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + SMI_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc000000.flash"); + + /* clock derived from apb clk */ + clk = clk_register_gate(NULL, "adc_clk", "apb_clk", 0, PERIP1_CLK_ENB, + ADC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "adc"); + + clk = clk_register_gate(NULL, "gpio0_clk", "apb_clk", 0, PERIP1_CLK_ENB, + GPIO_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc980000.gpio"); + + clk = clk_register_gate(NULL, "ssp0_clk", "apb_clk", 0, PERIP1_CLK_ENB, + SSP_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0100000.spi"); + + /* RAS clk enable */ + clk = clk_register_gate(NULL, "ras_ahb_clk", "ahb_clk", 0, RAS_CLK_ENB, + RAS_AHB_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_ahb_clk", NULL); + + clk = clk_register_gate(NULL, "ras_apb_clk", "apb_clk", 0, RAS_CLK_ENB, + RAS_APB_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_apb_clk", NULL); + + clk = clk_register_gate(NULL, "ras_32k_clk", "osc_32k_clk", 0, + RAS_CLK_ENB, RAS_32K_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_32k_clk", NULL); + + clk = clk_register_gate(NULL, "ras_24m_clk", "osc_24m_clk", 0, + RAS_CLK_ENB, RAS_24M_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_24m_clk", NULL); + + clk = clk_register_gate(NULL, "ras_pll1_clk", "pll1_clk", 0, + RAS_CLK_ENB, RAS_PLL1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_pll1_clk", NULL); + + clk = clk_register_gate(NULL, "ras_pll2_clk", "pll2_clk", 0, + RAS_CLK_ENB, RAS_PLL2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_pll2_clk", NULL); + + clk = clk_register_gate(NULL, "ras_pll3_48m_clk", "pll3_48m_clk", 0, + RAS_CLK_ENB, RAS_48M_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_pll3_48m_clk", NULL); + + clk = clk_register_gate(NULL, "ras_gen0_synth_gate_clk", + "gen0_synth_gate_clk", 0, RAS_CLK_ENB, + RAS_SYNT0_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_gen0_synth_gate_clk", NULL); + + clk = clk_register_gate(NULL, "ras_gen1_synth_gate_clk", + "gen1_synth_gate_clk", 0, RAS_CLK_ENB, + RAS_SYNT1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_gen1_synth_gate_clk", NULL); + + clk = clk_register_gate(NULL, "ras_gen2_synth_gate_clk", + "gen2_synth_gate_clk", 0, RAS_CLK_ENB, + RAS_SYNT2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_gen2_synth_gate_clk", NULL); + + clk = clk_register_gate(NULL, "ras_gen3_synth_gate_clk", + "gen3_synth_gate_clk", 0, RAS_CLK_ENB, + RAS_SYNT3_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, "ras_gen3_synth_gate_clk", NULL); + + if (of_machine_is_compatible("st,spear300")) + spear300_clk_init(); + else if (of_machine_is_compatible("st,spear310")) + spear310_clk_init(); + else if (of_machine_is_compatible("st,spear320")) + spear320_clk_init(); +} diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c new file mode 100644 index 000000000000..f9a20b382304 --- /dev/null +++ b/drivers/clk/spear/spear6xx_clock.c @@ -0,0 +1,342 @@ +/* + * SPEAr6xx machines clock framework source file + * + * Copyright (C) 2012 ST Microelectronics + * Viresh Kumar <viresh.kumar@st.com> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/io.h> +#include <linux/spinlock_types.h> +#include <mach/misc_regs.h> +#include "clk.h" + +static DEFINE_SPINLOCK(_lock); + +#define PLL1_CTR (MISC_BASE + 0x008) +#define PLL1_FRQ (MISC_BASE + 0x00C) +#define PLL2_CTR (MISC_BASE + 0x014) +#define PLL2_FRQ (MISC_BASE + 0x018) +#define PLL_CLK_CFG (MISC_BASE + 0x020) + /* PLL_CLK_CFG register masks */ + #define MCTR_CLK_SHIFT 28 + #define MCTR_CLK_MASK 3 + +#define CORE_CLK_CFG (MISC_BASE + 0x024) + /* CORE CLK CFG register masks */ + #define HCLK_RATIO_SHIFT 10 + #define HCLK_RATIO_MASK 2 + #define PCLK_RATIO_SHIFT 8 + #define PCLK_RATIO_MASK 2 + +#define PERIP_CLK_CFG (MISC_BASE + 0x028) + /* PERIP_CLK_CFG register masks */ + #define CLCD_CLK_SHIFT 2 + #define CLCD_CLK_MASK 2 + #define UART_CLK_SHIFT 4 + #define UART_CLK_MASK 1 + #define FIRDA_CLK_SHIFT 5 + #define FIRDA_CLK_MASK 2 + #define GPT0_CLK_SHIFT 8 + #define GPT1_CLK_SHIFT 10 + #define GPT2_CLK_SHIFT 11 + #define GPT3_CLK_SHIFT 12 + #define GPT_CLK_MASK 1 + +#define PERIP1_CLK_ENB (MISC_BASE + 0x02C) + /* PERIP1_CLK_ENB register masks */ + #define UART0_CLK_ENB 3 + #define UART1_CLK_ENB 4 + #define SSP0_CLK_ENB 5 + #define SSP1_CLK_ENB 6 + #define I2C_CLK_ENB 7 + #define JPEG_CLK_ENB 8 + #define FSMC_CLK_ENB 9 + #define FIRDA_CLK_ENB 10 + #define GPT2_CLK_ENB 11 + #define GPT3_CLK_ENB 12 + #define GPIO2_CLK_ENB 13 + #define SSP2_CLK_ENB 14 + #define ADC_CLK_ENB 15 + #define GPT1_CLK_ENB 11 + #define RTC_CLK_ENB 17 + #define GPIO1_CLK_ENB 18 + #define DMA_CLK_ENB 19 + #define SMI_CLK_ENB 21 + #define CLCD_CLK_ENB 22 + #define GMAC_CLK_ENB 23 + #define USBD_CLK_ENB 24 + #define USBH0_CLK_ENB 25 + #define USBH1_CLK_ENB 26 + +#define PRSC0_CLK_CFG (MISC_BASE + 0x044) +#define PRSC1_CLK_CFG (MISC_BASE + 0x048) +#define PRSC2_CLK_CFG (MISC_BASE + 0x04C) + +#define CLCD_CLK_SYNT (MISC_BASE + 0x05C) +#define FIRDA_CLK_SYNT (MISC_BASE + 0x060) +#define UART_CLK_SYNT (MISC_BASE + 0x064) + +/* vco rate configuration table, in ascending order of rates */ +static struct pll_rate_tbl pll_rtbl[] = { + {.mode = 0, .m = 0x53, .n = 0x0F, .p = 0x1}, /* vco 332 & pll 166 MHz */ + {.mode = 0, .m = 0x85, .n = 0x0F, .p = 0x1}, /* vco 532 & pll 266 MHz */ + {.mode = 0, .m = 0xA6, .n = 0x0F, .p = 0x1}, /* vco 664 & pll 332 MHz */ +}; + +/* aux rate configuration table, in ascending order of rates */ +static struct aux_rate_tbl aux_rtbl[] = { + /* For PLL1 = 332 MHz */ + {.xscale = 2, .yscale = 8, .eq = 0}, /* 41.5 MHz */ + {.xscale = 2, .yscale = 4, .eq = 0}, /* 83 MHz */ + {.xscale = 1, .yscale = 2, .eq = 1}, /* 166 MHz */ +}; + +static const char *clcd_parents[] = { "pll3_48m_clk", "clcd_synth_gate_clk", }; +static const char *firda_parents[] = { "pll3_48m_clk", "firda_synth_gate_clk", +}; +static const char *uart_parents[] = { "pll3_48m_clk", "uart_synth_gate_clk", }; +static const char *gpt0_1_parents[] = { "pll3_48m_clk", "gpt0_1_synth_clk", }; +static const char *gpt2_parents[] = { "pll3_48m_clk", "gpt2_synth_clk", }; +static const char *gpt3_parents[] = { "pll3_48m_clk", "gpt3_synth_clk", }; +static const char *ddr_parents[] = { "ahb_clk", "ahbmult2_clk", "none", + "pll2_clk", }; + +/* gpt rate configuration table, in ascending order of rates */ +static struct gpt_rate_tbl gpt_rtbl[] = { + /* For pll1 = 332 MHz */ + {.mscale = 4, .nscale = 0}, /* 41.5 MHz */ + {.mscale = 2, .nscale = 0}, /* 55.3 MHz */ + {.mscale = 1, .nscale = 0}, /* 83 MHz */ +}; + +void __init spear6xx_clk_init(void) +{ + struct clk *clk, *clk1; + + clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 0); + clk_register_clkdev(clk, "apb_pclk", NULL); + + clk = clk_register_fixed_rate(NULL, "osc_32k_clk", NULL, CLK_IS_ROOT, + 32000); + clk_register_clkdev(clk, "osc_32k_clk", NULL); + + clk = clk_register_fixed_rate(NULL, "osc_30m_clk", NULL, CLK_IS_ROOT, + 30000000); + clk_register_clkdev(clk, "osc_30m_clk", NULL); + + /* clock derived from 32 KHz osc clk */ + clk = clk_register_gate(NULL, "rtc_spear", "osc_32k_clk", 0, + PERIP1_CLK_ENB, RTC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "rtc-spear"); + + /* clock derived from 30 MHz osc clk */ + clk = clk_register_fixed_rate(NULL, "pll3_48m_clk", "osc_24m_clk", 0, + 48000000); + clk_register_clkdev(clk, "pll3_48m_clk", NULL); + + clk = clk_register_vco_pll("vco1_clk", "pll1_clk", NULL, "osc_30m_clk", + 0, PLL1_CTR, PLL1_FRQ, pll_rtbl, ARRAY_SIZE(pll_rtbl), + &_lock, &clk1, NULL); + clk_register_clkdev(clk, "vco1_clk", NULL); + clk_register_clkdev(clk1, "pll1_clk", NULL); + + clk = clk_register_vco_pll("vco2_clk", "pll2_clk", NULL, + "osc_30m_clk", 0, PLL2_CTR, PLL2_FRQ, pll_rtbl, + ARRAY_SIZE(pll_rtbl), &_lock, &clk1, NULL); + clk_register_clkdev(clk, "vco2_clk", NULL); + clk_register_clkdev(clk1, "pll2_clk", NULL); + + clk = clk_register_fixed_factor(NULL, "wdt_clk", "osc_30m_clk", 0, 1, + 1); + clk_register_clkdev(clk, NULL, "wdt"); + + /* clock derived from pll1 clk */ + clk = clk_register_fixed_factor(NULL, "cpu_clk", "pll1_clk", 0, 1, 1); + clk_register_clkdev(clk, "cpu_clk", NULL); + + clk = clk_register_divider(NULL, "ahb_clk", "pll1_clk", + CLK_SET_RATE_PARENT, CORE_CLK_CFG, HCLK_RATIO_SHIFT, + HCLK_RATIO_MASK, 0, &_lock); + clk_register_clkdev(clk, "ahb_clk", NULL); + + clk = clk_register_aux("uart_synth_clk", "uart_synth_gate_clk", + "pll1_clk", 0, UART_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "uart_synth_clk", NULL); + clk_register_clkdev(clk1, "uart_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "uart_mux_clk", uart_parents, + ARRAY_SIZE(uart_parents), 0, PERIP_CLK_CFG, + UART_CLK_SHIFT, UART_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "uart_mux_clk", NULL); + + clk = clk_register_gate(NULL, "uart0", "uart_mux_clk", 0, + PERIP1_CLK_ENB, UART0_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0000000.serial"); + + clk = clk_register_gate(NULL, "uart1", "uart_mux_clk", 0, + PERIP1_CLK_ENB, UART1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0080000.serial"); + + clk = clk_register_aux("firda_synth_clk", "firda_synth_gate_clk", + "pll1_clk", 0, FIRDA_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "firda_synth_clk", NULL); + clk_register_clkdev(clk1, "firda_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "firda_mux_clk", firda_parents, + ARRAY_SIZE(firda_parents), 0, PERIP_CLK_CFG, + FIRDA_CLK_SHIFT, FIRDA_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "firda_mux_clk", NULL); + + clk = clk_register_gate(NULL, "firda_clk", "firda_mux_clk", 0, + PERIP1_CLK_ENB, FIRDA_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "firda"); + + clk = clk_register_aux("clcd_synth_clk", "clcd_synth_gate_clk", + "pll1_clk", 0, CLCD_CLK_SYNT, NULL, aux_rtbl, + ARRAY_SIZE(aux_rtbl), &_lock, &clk1); + clk_register_clkdev(clk, "clcd_synth_clk", NULL); + clk_register_clkdev(clk1, "clcd_synth_gate_clk", NULL); + + clk = clk_register_mux(NULL, "clcd_mux_clk", clcd_parents, + ARRAY_SIZE(clcd_parents), 0, PERIP_CLK_CFG, + CLCD_CLK_SHIFT, CLCD_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "clcd_mux_clk", NULL); + + clk = clk_register_gate(NULL, "clcd_clk", "clcd_mux_clk", 0, + PERIP1_CLK_ENB, CLCD_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "clcd"); + + /* gpt clocks */ + clk = clk_register_gpt("gpt0_1_synth_clk", "pll1_clk", 0, PRSC0_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk_register_clkdev(clk, "gpt0_1_synth_clk", NULL); + + clk = clk_register_mux(NULL, "gpt0_mux_clk", gpt0_1_parents, + ARRAY_SIZE(gpt0_1_parents), 0, PERIP_CLK_CFG, + GPT0_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt0"); + + clk = clk_register_mux(NULL, "gpt1_mux_clk", gpt0_1_parents, + ARRAY_SIZE(gpt0_1_parents), 0, PERIP_CLK_CFG, + GPT1_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "gpt1_mux_clk", NULL); + + clk = clk_register_gate(NULL, "gpt1_clk", "gpt1_mux_clk", 0, + PERIP1_CLK_ENB, GPT1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt1"); + + clk = clk_register_gpt("gpt2_synth_clk", "pll1_clk", 0, PRSC1_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk_register_clkdev(clk, "gpt2_synth_clk", NULL); + + clk = clk_register_mux(NULL, "gpt2_mux_clk", gpt2_parents, + ARRAY_SIZE(gpt2_parents), 0, PERIP_CLK_CFG, + GPT2_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "gpt2_mux_clk", NULL); + + clk = clk_register_gate(NULL, "gpt2_clk", "gpt2_mux_clk", 0, + PERIP1_CLK_ENB, GPT2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt2"); + + clk = clk_register_gpt("gpt3_synth_clk", "pll1_clk", 0, PRSC2_CLK_CFG, + gpt_rtbl, ARRAY_SIZE(gpt_rtbl), &_lock); + clk_register_clkdev(clk, "gpt3_synth_clk", NULL); + + clk = clk_register_mux(NULL, "gpt3_mux_clk", gpt3_parents, + ARRAY_SIZE(gpt3_parents), 0, PERIP_CLK_CFG, + GPT3_CLK_SHIFT, GPT_CLK_MASK, 0, &_lock); + clk_register_clkdev(clk, "gpt3_mux_clk", NULL); + + clk = clk_register_gate(NULL, "gpt3_clk", "gpt3_mux_clk", 0, + PERIP1_CLK_ENB, GPT3_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gpt3"); + + /* clock derived from pll3 clk */ + clk = clk_register_gate(NULL, "usbh0_clk", "pll3_48m_clk", 0, + PERIP1_CLK_ENB, USBH0_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "usbh.0_clk"); + + clk = clk_register_gate(NULL, "usbh1_clk", "pll3_48m_clk", 0, + PERIP1_CLK_ENB, USBH1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "usbh.1_clk"); + + clk = clk_register_gate(NULL, "usbd_clk", "pll3_48m_clk", 0, + PERIP1_CLK_ENB, USBD_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "designware_udc"); + + /* clock derived from ahb clk */ + clk = clk_register_fixed_factor(NULL, "ahbmult2_clk", "ahb_clk", 0, 2, + 1); + clk_register_clkdev(clk, "ahbmult2_clk", NULL); + + clk = clk_register_mux(NULL, "ddr_clk", ddr_parents, + ARRAY_SIZE(ddr_parents), + 0, PLL_CLK_CFG, MCTR_CLK_SHIFT, MCTR_CLK_MASK, 0, + &_lock); + clk_register_clkdev(clk, "ddr_clk", NULL); + + clk = clk_register_divider(NULL, "apb_clk", "ahb_clk", + CLK_SET_RATE_PARENT, CORE_CLK_CFG, PCLK_RATIO_SHIFT, + PCLK_RATIO_MASK, 0, &_lock); + clk_register_clkdev(clk, "apb_clk", NULL); + + clk = clk_register_gate(NULL, "dma_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + DMA_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc400000.dma"); + + clk = clk_register_gate(NULL, "fsmc_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + FSMC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d1800000.flash"); + + clk = clk_register_gate(NULL, "gmac_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + GMAC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "gmac"); + + clk = clk_register_gate(NULL, "i2c_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + I2C_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d0200000.i2c"); + + clk = clk_register_gate(NULL, "jpeg_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + JPEG_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "jpeg"); + + clk = clk_register_gate(NULL, "smi_clk", "ahb_clk", 0, PERIP1_CLK_ENB, + SMI_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc000000.flash"); + + /* clock derived from apb clk */ + clk = clk_register_gate(NULL, "adc_clk", "apb_clk", 0, PERIP1_CLK_ENB, + ADC_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "adc"); + + clk = clk_register_fixed_factor(NULL, "gpio0_clk", "apb_clk", 0, 1, 1); + clk_register_clkdev(clk, NULL, "f0100000.gpio"); + + clk = clk_register_gate(NULL, "gpio1_clk", "apb_clk", 0, PERIP1_CLK_ENB, + GPIO1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "fc980000.gpio"); + + clk = clk_register_gate(NULL, "gpio2_clk", "apb_clk", 0, PERIP1_CLK_ENB, + GPIO2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "d8100000.gpio"); + + clk = clk_register_gate(NULL, "ssp0_clk", "apb_clk", 0, PERIP1_CLK_ENB, + SSP0_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "ssp-pl022.0"); + + clk = clk_register_gate(NULL, "ssp1_clk", "apb_clk", 0, PERIP1_CLK_ENB, + SSP1_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "ssp-pl022.1"); + + clk = clk_register_gate(NULL, "ssp2_clk", "apb_clk", 0, PERIP1_CLK_ENB, + SSP2_CLK_ENB, 0, &_lock); + clk_register_clkdev(clk, NULL, "ssp-pl022.2"); +} diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c index 0053d7ebb5ca..8f3f74ce8c7f 100644 --- a/drivers/crypto/ixp4xx_crypto.c +++ b/drivers/crypto/ixp4xx_crypto.c @@ -18,6 +18,7 @@ #include <linux/interrupt.h> #include <linux/spinlock.h> #include <linux/gfp.h> +#include <linux/module.h> #include <crypto/ctr.h> #include <crypto/des.h> diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c index dc641c796526..921039e56f87 100644 --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -124,6 +124,9 @@ struct talitos_private { void __iomem *reg; int irq[2]; + /* SEC global registers lock */ + spinlock_t reg_lock ____cacheline_aligned; + /* SEC version geometry (from device tree node) */ unsigned int num_channels; unsigned int chfifo_len; @@ -412,6 +415,7 @@ static void talitos_done_##name(unsigned long data) \ { \ struct device *dev = (struct device *)data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ + unsigned long flags; \ \ if (ch_done_mask & 1) \ flush_channel(dev, 0, 0, 0); \ @@ -427,8 +431,10 @@ static void talitos_done_##name(unsigned long data) \ out: \ /* At this point, all completed channels have been processed */ \ /* Unmask done interrupts for channels completed later on. */ \ + spin_lock_irqsave(&priv->reg_lock, flags); \ setbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ setbits32(priv->reg + TALITOS_IMR_LO, TALITOS_IMR_LO_INIT); \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ } DEF_TALITOS_DONE(4ch, TALITOS_ISR_4CHDONE) DEF_TALITOS_DONE(ch0_2, TALITOS_ISR_CH_0_2_DONE) @@ -619,22 +625,28 @@ static irqreturn_t talitos_interrupt_##name(int irq, void *data) \ struct device *dev = data; \ struct talitos_private *priv = dev_get_drvdata(dev); \ u32 isr, isr_lo; \ + unsigned long flags; \ \ + spin_lock_irqsave(&priv->reg_lock, flags); \ isr = in_be32(priv->reg + TALITOS_ISR); \ isr_lo = in_be32(priv->reg + TALITOS_ISR_LO); \ /* Acknowledge interrupt */ \ out_be32(priv->reg + TALITOS_ICR, isr & (ch_done_mask | ch_err_mask)); \ out_be32(priv->reg + TALITOS_ICR_LO, isr_lo); \ \ - if (unlikely((isr & ~TALITOS_ISR_4CHDONE) & ch_err_mask || isr_lo)) \ - talitos_error(dev, isr, isr_lo); \ - else \ + if (unlikely(isr & ch_err_mask || isr_lo)) { \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + talitos_error(dev, isr & ch_err_mask, isr_lo); \ + } \ + else { \ if (likely(isr & ch_done_mask)) { \ /* mask further done interrupts. */ \ clrbits32(priv->reg + TALITOS_IMR, ch_done_mask); \ /* done_task will unmask done interrupts at exit */ \ tasklet_schedule(&priv->done_task[tlet]); \ } \ + spin_unlock_irqrestore(&priv->reg_lock, flags); \ + } \ \ return (isr & (ch_done_mask | ch_err_mask) || isr_lo) ? IRQ_HANDLED : \ IRQ_NONE; \ @@ -2719,6 +2731,8 @@ static int talitos_probe(struct platform_device *ofdev) priv->ofdev = ofdev; + spin_lock_init(&priv->reg_lock); + err = talitos_probe_irq(ofdev); if (err) goto err_out; diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig index cf9da362d64f..ef378b5b17e4 100644 --- a/drivers/dma/Kconfig +++ b/drivers/dma/Kconfig @@ -91,11 +91,10 @@ config DW_DMAC config AT_HDMAC tristate "Atmel AHB DMA support" - depends on ARCH_AT91SAM9RL || ARCH_AT91SAM9G45 + depends on ARCH_AT91 select DMA_ENGINE help - Support the Atmel AHB DMA controller. This can be integrated in - chips such as the Atmel AT91SAM9RL. + Support the Atmel AHB DMA controller. config FSL_DMA tristate "Freescale Elo and Elo Plus DMA support" diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 30372f7b2d45..348b367debeb 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -1510,8 +1510,8 @@ int drm_freebufs(struct drm_device *dev, void *data, * \param arg pointer to a drm_buf_map structure. * \return zero on success or a negative number on failure. * - * Maps the AGP, SG or PCI buffer region with do_mmap(), and copies information - * about each buffer into user space. For PCI buffers, it calls do_mmap() with + * Maps the AGP, SG or PCI buffer region with vm_mmap(), and copies information + * about each buffer into user space. For PCI buffers, it calls vm_mmap() with * offset equal to 0, which drm_mmap() interpretes as PCI buffers and calls * drm_mmap_dma(). */ @@ -1553,18 +1553,14 @@ int drm_mapbufs(struct drm_device *dev, void *data, retcode = -EINVAL; goto done; } - down_write(¤t->mm->mmap_sem); - virtual = do_mmap(file_priv->filp, 0, map->size, + virtual = vm_mmap(file_priv->filp, 0, map->size, PROT_READ | PROT_WRITE, MAP_SHARED, token); - up_write(¤t->mm->mmap_sem); } else { - down_write(¤t->mm->mmap_sem); - virtual = do_mmap(file_priv->filp, 0, dma->byte_count, + virtual = vm_mmap(file_priv->filp, 0, dma->byte_count, PROT_READ | PROT_WRITE, MAP_SHARED, 0); - up_write(¤t->mm->mmap_sem); } if (virtual > -1024UL) { /* Real error */ diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index d3aaeb6ae236..c79870a75c2f 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -3335,10 +3335,12 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev, ret = crtc->funcs->page_flip(crtc, fb, e); if (ret) { - spin_lock_irqsave(&dev->event_lock, flags); - file_priv->event_space += sizeof e->event; - spin_unlock_irqrestore(&dev->event_lock, flags); - kfree(e); + if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { + spin_lock_irqsave(&dev->event_lock, flags); + file_priv->event_space += sizeof e->event; + spin_unlock_irqrestore(&dev->event_lock, flags); + kfree(e); + } } out: diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c index cdfbf27b2b3c..123de28f94ef 100644 --- a/drivers/gpu/drm/drm_fops.c +++ b/drivers/gpu/drm/drm_fops.c @@ -507,12 +507,12 @@ int drm_release(struct inode *inode, struct file *filp) drm_events_release(file_priv); - if (dev->driver->driver_features & DRIVER_GEM) - drm_gem_release(dev, file_priv); - if (dev->driver->driver_features & DRIVER_MODESET) drm_fb_release(file_priv); + if (dev->driver->driver_features & DRIVER_GEM) + drm_gem_release(dev, file_priv); + mutex_lock(&dev->ctxlist_mutex); if (!list_empty(&dev->ctxlist)) { struct drm_ctx_list *pos, *n; diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c index c8c83dad2ce1..37c9a523dd1c 100644 --- a/drivers/gpu/drm/drm_usb.c +++ b/drivers/gpu/drm/drm_usb.c @@ -1,6 +1,6 @@ #include "drmP.h" #include <linux/usb.h> -#include <linux/export.h> +#include <linux/module.h> int drm_get_usb_dev(struct usb_interface *interface, const struct usb_device_id *id, @@ -114,3 +114,7 @@ void drm_usb_exit(struct drm_driver *driver, usb_deregister(udriver); } EXPORT_SYMBOL(drm_usb_exit); + +MODULE_AUTHOR("David Airlie"); +MODULE_DESCRIPTION("USB DRM support"); +MODULE_LICENSE("GPL and additional rights"); diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 26d51979116b..392ce71ed6a1 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -581,10 +581,8 @@ int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, obj->filp->f_op = &exynos_drm_gem_fops; obj->filp->private_data = obj; - down_write(¤t->mm->mmap_sem); - addr = do_mmap(obj->filp, 0, args->size, + addr = vm_mmap(obj->filp, 0, args->size, PROT_READ | PROT_WRITE, MAP_SHARED, 0); - up_write(¤t->mm->mmap_sem); drm_gem_object_unreference_unlocked(obj); diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h index 21071cef92a4..36eb0744841c 100644 --- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h +++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h @@ -29,7 +29,6 @@ #define __MDFLD_DSI_OUTPUT_H__ #include <linux/backlight.h> -#include <linux/version.h> #include <drm/drmP.h> #include <drm/drm.h> #include <drm/drm_crtc.h> diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c index 2c8a60c3b98e..f920fb5e42b6 100644 --- a/drivers/gpu/drm/i810/i810_dma.c +++ b/drivers/gpu/drm/i810/i810_dma.c @@ -129,6 +129,7 @@ static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv) if (buf_priv->currently_mapped == I810_BUF_MAPPED) return -EINVAL; + /* This is all entirely broken */ down_write(¤t->mm->mmap_sem); old_fops = file_priv->filp->f_op; file_priv->filp->f_op = &i810_buffer_fops; @@ -157,11 +158,8 @@ static int i810_unmap_buffer(struct drm_buf *buf) if (buf_priv->currently_mapped != I810_BUF_MAPPED) return -EINVAL; - down_write(¤t->mm->mmap_sem); - retcode = do_munmap(current->mm, - (unsigned long)buf_priv->virtual, + retcode = vm_munmap((unsigned long)buf_priv->virtual, (size_t) buf->total); - up_write(¤t->mm->mmap_sem); buf_priv->currently_mapped = I810_BUF_UNMAPPED; buf_priv->virtual = NULL; diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 0e3c6acde955..0d1e4b7b4b99 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1087,11 +1087,9 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data, if (obj == NULL) return -ENOENT; - down_write(¤t->mm->mmap_sem); - addr = do_mmap(obj->filp, 0, args->size, + addr = vm_mmap(obj->filp, 0, args->size, PROT_READ | PROT_WRITE, MAP_SHARED, args->offset); - up_write(¤t->mm->mmap_sem); drm_gem_object_unreference_unlocked(obj); if (IS_ERR((void *)addr)) return addr; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index bae38acf44dc..5908cd563400 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3478,8 +3478,11 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc, return false; } - /* All interlaced capable intel hw wants timings in frames. */ - drm_mode_set_crtcinfo(adjusted_mode, 0); + /* All interlaced capable intel hw wants timings in frames. Note though + * that intel_lvds_mode_fixup does some funny tricks with the crtc + * timings, so we need to be careful not to clobber these.*/ + if (!(adjusted_mode->private_flags & INTEL_MODE_CRTC_TIMINGS_SET)) + drm_mode_set_crtcinfo(adjusted_mode, 0); return true; } @@ -7465,7 +7468,13 @@ static int intel_gen6_queue_flip(struct drm_device *dev, OUT_RING(fb->pitches[0] | obj->tiling_mode); OUT_RING(obj->gtt_offset); - pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; + /* Contrary to the suggestions in the documentation, + * "Enable Panel Fitter" does not seem to be required when page + * flipping with a non-native mode, and worse causes a normal + * modeset to fail. + * pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE; + */ + pf = 0; pipesrc = I915_READ(PIPESRC(intel_crtc->pipe)) & 0x0fff0fff; OUT_RING(pf | pipesrc); ADVANCE_LP_RING(); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 5a14149b3794..715afa153025 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -105,6 +105,10 @@ #define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0) #define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT) #define INTEL_MODE_DP_FORCE_6BPC (0x10) +/* This flag must be set by the encoder's mode_fixup if it changes the crtc + * timings in the mode to prevent the crtc fixup from overwriting them. + * Currently only lvds needs that. */ +#define INTEL_MODE_CRTC_TIMINGS_SET (0x20) static inline void intel_mode_set_pixel_multiplier(struct drm_display_mode *mode, diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c index 19ecd78b8a2c..6e9ee33fd412 100644 --- a/drivers/gpu/drm/i915/intel_fb.c +++ b/drivers/gpu/drm/i915/intel_fb.c @@ -279,6 +279,8 @@ void intel_fb_restore_mode(struct drm_device *dev) struct drm_mode_config *config = &dev->mode_config; struct drm_plane *plane; + mutex_lock(&dev->mode_config.mutex); + ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper); if (ret) DRM_DEBUG("failed to restore crtc mode\n"); @@ -286,4 +288,6 @@ void intel_fb_restore_mode(struct drm_device *dev) /* Be sure to shut off any planes that may be active */ list_for_each_entry(plane, &config->plane_list, head) plane->funcs->disable_plane(plane); + + mutex_unlock(&dev->mode_config.mutex); } diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c index 95db2e988227..30e2c82101de 100644 --- a/drivers/gpu/drm/i915/intel_lvds.c +++ b/drivers/gpu/drm/i915/intel_lvds.c @@ -187,6 +187,8 @@ centre_horizontally(struct drm_display_mode *mode, mode->crtc_hsync_start = mode->crtc_hblank_start + sync_pos; mode->crtc_hsync_end = mode->crtc_hsync_start + sync_width; + + mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET; } static void @@ -208,6 +210,8 @@ centre_vertically(struct drm_display_mode *mode, mode->crtc_vsync_start = mode->crtc_vblank_start + sync_pos; mode->crtc_vsync_end = mode->crtc_vsync_start + sync_width; + + mode->private_flags |= INTEL_MODE_CRTC_TIMINGS_SET; } static inline u32 panel_fitter_scaling(u32 source, u32 target) @@ -283,6 +287,8 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder, for_each_pipe(pipe) I915_WRITE(BCLRPAT(pipe), 0); + drm_mode_set_crtcinfo(adjusted_mode, 0); + switch (intel_lvds->fitting_mode) { case DRM_MODE_SCALE_CENTER: /* diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index 230a141dbea3..48177ec4720e 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -47,8 +47,6 @@ intel_fixed_panel_mode(struct drm_display_mode *fixed_mode, adjusted_mode->vtotal = fixed_mode->vtotal; adjusted_mode->clock = fixed_mode->clock; - - drm_mode_set_crtcinfo(adjusted_mode, 0); } /* adjusted_mode has been preset to be the panel's fixed mode */ diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c index 34d591b7d4ef..da3e7c3abab7 100644 --- a/drivers/gpu/drm/nouveau/nouveau_pm.c +++ b/drivers/gpu/drm/nouveau/nouveau_pm.c @@ -235,6 +235,7 @@ nouveau_pm_profile_set(struct drm_device *dev, const char *profile) return -EPERM; strncpy(string, profile, sizeof(string)); + string[sizeof(string) - 1] = 0; if ((ptr = strchr(string, '\n'))) *ptr = '\0'; diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c index a7844ab6a50c..274640212475 100644 --- a/drivers/gpu/drm/nouveau/nv50_sor.c +++ b/drivers/gpu/drm/nouveau/nv50_sor.c @@ -42,7 +42,7 @@ nv50_sor_dp_lane_map(struct drm_device *dev, struct dcb_entry *dcb, u8 lane) struct drm_nouveau_private *dev_priv = dev->dev_private; static const u8 nvaf[] = { 24, 16, 8, 0 }; /* thanks, apple.. */ static const u8 nv50[] = { 16, 8, 0, 24 }; - if (dev_priv->card_type == 0xaf) + if (dev_priv->chipset == 0xaf) return nvaf[lane]; return nv50[lane]; } diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index de71243b591f..c8187c4b6ae8 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1135,7 +1135,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc } if (rdev->flags & RADEON_IS_AGP) { size_bf = mc->gtt_start; - size_af = 0xFFFFFFFF - mc->gtt_end + 1; + size_af = 0xFFFFFFFF - mc->gtt_end; if (size_bf > size_af) { if (mc->mc_vram_size > size_bf) { dev_warn(rdev->dev, "limiting VRAM\n"); @@ -1149,7 +1149,7 @@ static void r600_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc mc->real_vram_size = size_af; mc->mc_vram_size = size_af; } - mc->vram_start = mc->gtt_end; + mc->vram_start = mc->gtt_end + 1; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n", diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c index bd05156edbdb..3c2e7a000a2a 100644 --- a/drivers/gpu/drm/radeon/radeon_connectors.c +++ b/drivers/gpu/drm/radeon/radeon_connectors.c @@ -970,7 +970,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) encoder = obj_to_encoder(obj); - if (encoder->encoder_type != DRM_MODE_ENCODER_DAC || + if (encoder->encoder_type != DRM_MODE_ENCODER_DAC && encoder->encoder_type != DRM_MODE_ENCODER_TVDAC) continue; @@ -1000,6 +1000,7 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) * cases the DVI port is actually a virtual KVM port connected to the service * processor. */ +out: if ((!rdev->is_atom_bios) && (ret == connector_status_disconnected) && rdev->mode_info.bios_hardcoded_edid_size) { @@ -1007,7 +1008,6 @@ radeon_dvi_detect(struct drm_connector *connector, bool force) ret = connector_status_connected; } -out: /* updated in get modes as well since we need to know if it's analog or digital */ radeon_connector_update_scratch_regs(connector, ret); return ret; diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c index 66d5fe1c8174..65060b77c805 100644 --- a/drivers/gpu/drm/radeon/radeon_irq_kms.c +++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c @@ -147,6 +147,12 @@ static bool radeon_msi_ok(struct radeon_device *rdev) (rdev->pdev->subsystem_device == 0x01fd)) return true; + /* RV515 seems to have MSI issues where it loses + * MSI rearms occasionally. This leads to lockups and freezes. + * disable it by default. + */ + if (rdev->family == CHIP_RV515) + return false; if (rdev->flags & RADEON_IS_IGP) { /* APUs work fine with MSIs */ if (rdev->family >= CHIP_PALM) diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index c62ae4be3845..cdab1aeaed6e 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -969,7 +969,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) } if (rdev->flags & RADEON_IS_AGP) { size_bf = mc->gtt_start; - size_af = 0xFFFFFFFF - mc->gtt_end + 1; + size_af = 0xFFFFFFFF - mc->gtt_end; if (size_bf > size_af) { if (mc->mc_vram_size > size_bf) { dev_warn(rdev->dev, "limiting VRAM\n"); @@ -983,7 +983,7 @@ void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) mc->real_vram_size = size_af; mc->mc_vram_size = size_af; } - mc->vram_start = mc->gtt_end; + mc->vram_start = mc->gtt_end + 1; } mc->vram_end = mc->vram_start + mc->mc_vram_size - 1; dev_info(rdev->dev, "VRAM: %lluM 0x%08llX - 0x%08llX (%lluM used)\n", diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index ac7a199ffece..27bda986fc2b 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2999,8 +2999,8 @@ int si_rlc_init(struct radeon_device *rdev) } r = radeon_bo_pin(rdev->rlc.save_restore_obj, RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.save_restore_gpu_addr); + radeon_bo_unreserve(rdev->rlc.save_restore_obj); if (r) { - radeon_bo_unreserve(rdev->rlc.save_restore_obj); dev_warn(rdev->dev, "(%d) pin RLC sr bo failed\n", r); si_rlc_fini(rdev); return r; @@ -3023,9 +3023,8 @@ int si_rlc_init(struct radeon_device *rdev) } r = radeon_bo_pin(rdev->rlc.clear_state_obj, RADEON_GEM_DOMAIN_VRAM, &rdev->rlc.clear_state_gpu_addr); + radeon_bo_unreserve(rdev->rlc.clear_state_obj); if (r) { - - radeon_bo_unreserve(rdev->rlc.clear_state_obj); dev_warn(rdev->dev, "(%d) pin RLC c bo failed\n", r); si_rlc_fini(rdev); return r; diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index a3d033252995..ffddcba32af6 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -34,7 +34,7 @@ config HID config HID_BATTERY_STRENGTH bool depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY - default y + default n config HIDRAW bool "/dev/hidraw raw HID device support" diff --git a/drivers/hid/hid-tivo.c b/drivers/hid/hid-tivo.c index de47039c708c..9f85f827607f 100644 --- a/drivers/hid/hid-tivo.c +++ b/drivers/hid/hid-tivo.c @@ -62,7 +62,7 @@ static int tivo_input_mapping(struct hid_device *hdev, struct hid_input *hi, static const struct hid_device_id tivo_devices[] = { /* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */ - { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, { } }; diff --git a/drivers/hwmon/ads1015.c b/drivers/hwmon/ads1015.c index 7765e4f74ec5..1958f03efd7a 100644 --- a/drivers/hwmon/ads1015.c +++ b/drivers/hwmon/ads1015.c @@ -59,14 +59,11 @@ struct ads1015_data { struct ads1015_channel_data channel_data[ADS1015_CHANNELS]; }; -static int ads1015_read_value(struct i2c_client *client, unsigned int channel, - int *value) +static int ads1015_read_adc(struct i2c_client *client, unsigned int channel) { u16 config; - s16 conversion; struct ads1015_data *data = i2c_get_clientdata(client); unsigned int pga = data->channel_data[channel].pga; - int fullscale; unsigned int data_rate = data->channel_data[channel].data_rate; unsigned int conversion_time_ms; int res; @@ -78,7 +75,6 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel, if (res < 0) goto err_unlock; config = res; - fullscale = fullscale_table[pga]; conversion_time_ms = DIV_ROUND_UP(1000, data_rate_table[data_rate]); /* setup and start single conversion */ @@ -105,33 +101,36 @@ static int ads1015_read_value(struct i2c_client *client, unsigned int channel, } res = i2c_smbus_read_word_swapped(client, ADS1015_CONVERSION); - if (res < 0) - goto err_unlock; - conversion = res; - - mutex_unlock(&data->update_lock); - - *value = DIV_ROUND_CLOSEST(conversion * fullscale, 0x7ff0); - - return 0; err_unlock: mutex_unlock(&data->update_lock); return res; } +static int ads1015_reg_to_mv(struct i2c_client *client, unsigned int channel, + s16 reg) +{ + struct ads1015_data *data = i2c_get_clientdata(client); + unsigned int pga = data->channel_data[channel].pga; + int fullscale = fullscale_table[pga]; + + return DIV_ROUND_CLOSEST(reg * fullscale, 0x7ff0); +} + /* sysfs callback function */ static ssize_t show_in(struct device *dev, struct device_attribute *da, char *buf) { struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct i2c_client *client = to_i2c_client(dev); - int in; int res; + int index = attr->index; - res = ads1015_read_value(client, attr->index, &in); + res = ads1015_read_adc(client, index); + if (res < 0) + return res; - return (res < 0) ? res : sprintf(buf, "%d\n", in); + return sprintf(buf, "%d\n", ads1015_reg_to_mv(client, index, res)); } static const struct sensor_device_attribute ads1015_in[] = { diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index b7494af1e4a9..37a8fc92b44a 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -122,6 +122,38 @@ static bool __devinit fam15h_power_is_internal_node0(struct pci_dev *f4) return true; } +/* + * Newer BKDG versions have an updated recommendation on how to properly + * initialize the running average range (was: 0xE, now: 0x9). This avoids + * counter saturations resulting in bogus power readings. + * We correct this value ourselves to cope with older BIOSes. + */ +static void __devinit tweak_runavg_range(struct pci_dev *pdev) +{ + u32 val; + const struct pci_device_id affected_device = { + PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }; + + /* + * let this quirk apply only to the current version of the + * northbridge, since future versions may change the behavior + */ + if (!pci_match_id(&affected_device, pdev)) + return; + + pci_bus_read_config_dword(pdev->bus, + PCI_DEVFN(PCI_SLOT(pdev->devfn), 5), + REG_TDP_RUNNING_AVERAGE, &val); + if ((val & 0xf) != 0xe) + return; + + val &= ~0xf; + val |= 0x9; + pci_bus_write_config_dword(pdev->bus, + PCI_DEVFN(PCI_SLOT(pdev->devfn), 5), + REG_TDP_RUNNING_AVERAGE, val); +} + static void __devinit fam15h_power_init_data(struct pci_dev *f4, struct fam15h_power_data *data) { @@ -155,6 +187,13 @@ static int __devinit fam15h_power_probe(struct pci_dev *pdev, struct device *dev; int err; + /* + * though we ignore every other northbridge, we still have to + * do the tweaking on _each_ node in MCM processors as the counters + * are working hand-in-hand + */ + tweak_runavg_range(pdev); + if (!fam15h_power_is_internal_node0(pdev)) { err = -ENODEV; goto exit; diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig index 2d787796bf50..7faf4a7fcaa9 100644 --- a/drivers/input/misc/Kconfig +++ b/drivers/input/misc/Kconfig @@ -380,8 +380,7 @@ config INPUT_TWL4030_VIBRA config INPUT_TWL6040_VIBRA tristate "Support for TWL6040 Vibrator" - depends on TWL4030_CORE - select TWL6040_CORE + depends on TWL6040_CORE select INPUT_FF_MEMLESS help This option enables support for TWL6040 Vibrator Driver. diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c index 45874fed523a..14e94f56cb7d 100644 --- a/drivers/input/misc/twl6040-vibra.c +++ b/drivers/input/misc/twl6040-vibra.c @@ -28,7 +28,7 @@ #include <linux/module.h> #include <linux/platform_device.h> #include <linux/workqueue.h> -#include <linux/i2c/twl.h> +#include <linux/input.h> #include <linux/mfd/twl6040.h> #include <linux/slab.h> #include <linux/delay.h> @@ -257,7 +257,7 @@ static SIMPLE_DEV_PM_OPS(twl6040_vibra_pm_ops, twl6040_vibra_suspend, NULL); static int __devinit twl6040_vibra_probe(struct platform_device *pdev) { - struct twl4030_vibra_data *pdata = pdev->dev.platform_data; + struct twl6040_vibra_data *pdata = pdev->dev.platform_data; struct vibra_info *info; int ret; diff --git a/drivers/leds/leds-atmel-pwm.c b/drivers/leds/leds-atmel-pwm.c index 800243b6037e..64ad702a2ecc 100644 --- a/drivers/leds/leds-atmel-pwm.c +++ b/drivers/leds/leds-atmel-pwm.c @@ -35,7 +35,7 @@ static void pwmled_brightness(struct led_classdev *cdev, enum led_brightness b) * NOTE: we reuse the platform_data structure of GPIO leds, * but repurpose its "gpio" number as a PWM channel number. */ -static int __init pwmled_probe(struct platform_device *pdev) +static int __devinit pwmled_probe(struct platform_device *pdev) { const struct gpio_led_platform_data *pdata; struct pwmled *leds; diff --git a/drivers/media/common/tuners/xc5000.c b/drivers/media/common/tuners/xc5000.c index 7f98984e4fad..eab2ea424200 100644 --- a/drivers/media/common/tuners/xc5000.c +++ b/drivers/media/common/tuners/xc5000.c @@ -54,6 +54,7 @@ struct xc5000_priv { struct list_head hybrid_tuner_instance_list; u32 if_khz; + u32 xtal_khz; u32 freq_hz; u32 bandwidth; u8 video_standard; @@ -214,9 +215,9 @@ static const struct xc5000_fw_cfg xc5000a_1_6_114 = { .size = 12401, }; -static const struct xc5000_fw_cfg xc5000c_41_024_5_31875 = { - .name = "dvb-fe-xc5000c-41.024.5-31875.fw", - .size = 16503, +static const struct xc5000_fw_cfg xc5000c_41_024_5 = { + .name = "dvb-fe-xc5000c-41.024.5.fw", + .size = 16497, }; static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id) @@ -226,7 +227,7 @@ static inline const struct xc5000_fw_cfg *xc5000_assign_firmware(int chip_id) case XC5000A: return &xc5000a_1_6_114; case XC5000C: - return &xc5000c_41_024_5_31875; + return &xc5000c_41_024_5; } } @@ -572,6 +573,31 @@ static int xc_tune_channel(struct xc5000_priv *priv, u32 freq_hz, int mode) return found; } +static int xc_set_xtal(struct dvb_frontend *fe) +{ + struct xc5000_priv *priv = fe->tuner_priv; + int ret = XC_RESULT_SUCCESS; + + switch (priv->chip_id) { + default: + case XC5000A: + /* 32.000 MHz xtal is default */ + break; + case XC5000C: + switch (priv->xtal_khz) { + default: + case 32000: + /* 32.000 MHz xtal is default */ + break; + case 31875: + /* 31.875 MHz xtal configuration */ + ret = xc_write_reg(priv, 0x000f, 0x8081); + break; + } + break; + } + return ret; +} static int xc5000_fwupload(struct dvb_frontend *fe) { @@ -603,6 +629,8 @@ static int xc5000_fwupload(struct dvb_frontend *fe) } else { printk(KERN_INFO "xc5000: firmware uploading...\n"); ret = xc_load_i2c_sequence(fe, fw->data); + if (XC_RESULT_SUCCESS == ret) + ret = xc_set_xtal(fe); printk(KERN_INFO "xc5000: firmware upload complete...\n"); } @@ -1164,6 +1192,9 @@ struct dvb_frontend *xc5000_attach(struct dvb_frontend *fe, priv->if_khz = cfg->if_khz; } + if (priv->xtal_khz == 0) + priv->xtal_khz = cfg->xtal_khz; + if (priv->radio_input == 0) priv->radio_input = cfg->radio_input; diff --git a/drivers/media/common/tuners/xc5000.h b/drivers/media/common/tuners/xc5000.h index 3396f8e02b40..39a73bf01406 100644 --- a/drivers/media/common/tuners/xc5000.h +++ b/drivers/media/common/tuners/xc5000.h @@ -34,6 +34,7 @@ struct xc5000_config { u8 i2c_address; u32 if_khz; u8 radio_input; + u32 xtal_khz; int chip_id; }; diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 39696c6a4ed7..0f64d7182657 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -1446,6 +1446,28 @@ static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) __func__); return -EINVAL; } + /* + * Get a delivery system that is compatible with DVBv3 + * NOTE: in order for this to work with softwares like Kaffeine that + * uses a DVBv5 call for DVB-S2 and a DVBv3 call to go back to + * DVB-S, drivers that support both should put the SYS_DVBS entry + * before the SYS_DVBS2, otherwise it won't switch back to DVB-S. + * The real fix is that userspace applications should not use DVBv3 + * and not trust on calling FE_SET_FRONTEND to switch the delivery + * system. + */ + ncaps = 0; + while (fe->ops.delsys[ncaps] && ncaps < MAX_DELSYS) { + if (fe->ops.delsys[ncaps] == desired_system) { + delsys = desired_system; + break; + } + ncaps++; + } + if (delsys == SYS_UNDEFINED) { + dprintk("%s() Couldn't find a delivery system that matches %d\n", + __func__, desired_system); + } } else { /* * This is a DVBv5 call. So, it likely knows the supported @@ -1494,9 +1516,10 @@ static int set_delivery_system(struct dvb_frontend *fe, u32 desired_system) __func__); return -EINVAL; } - c->delivery_system = delsys; } + c->delivery_system = delsys; + /* * The DVBv3 or DVBv5 call is requesting a different system. So, * emulation is needed. diff --git a/drivers/media/dvb/frontends/drxk_hard.c b/drivers/media/dvb/frontends/drxk_hard.c index 36d11756492f..a414b1f2b6a5 100644 --- a/drivers/media/dvb/frontends/drxk_hard.c +++ b/drivers/media/dvb/frontends/drxk_hard.c @@ -1520,8 +1520,10 @@ static int scu_command(struct drxk_state *state, dprintk(1, "\n"); if ((cmd == 0) || ((parameterLen > 0) && (parameter == NULL)) || - ((resultLen > 0) && (result == NULL))) - goto error; + ((resultLen > 0) && (result == NULL))) { + printk(KERN_ERR "drxk: Error %d on %s\n", status, __func__); + return status; + } mutex_lock(&state->mutex); diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index b09c5fae489b..af526586fa26 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -1046,6 +1046,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) goto exit_unregister_led; } + data->dev->driver_type = RC_DRIVER_IR_RAW; data->dev->driver_name = WBCIR_NAME; data->dev->input_name = WBCIR_NAME; data->dev->input_phys = "wbcir/cir0"; diff --git a/drivers/media/video/Kconfig b/drivers/media/video/Kconfig index f2479c5c0eb2..ce1e7ba940f6 100644 --- a/drivers/media/video/Kconfig +++ b/drivers/media/video/Kconfig @@ -492,7 +492,7 @@ config VIDEO_VS6624 config VIDEO_MT9M032 tristate "MT9M032 camera sensor support" - depends on I2C && VIDEO_V4L2 + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API select VIDEO_APTINA_PLL ---help--- This driver supports MT9M032 camera sensors from Aptina, monochrome diff --git a/drivers/media/video/mt9m032.c b/drivers/media/video/mt9m032.c index 7636672c3548..645973c5feb0 100644 --- a/drivers/media/video/mt9m032.c +++ b/drivers/media/video/mt9m032.c @@ -392,10 +392,11 @@ static int mt9m032_set_pad_format(struct v4l2_subdev *subdev, } /* Scaling is not supported, the format is thus fixed. */ - ret = mt9m032_get_pad_format(subdev, fh, fmt); + fmt->format = *__mt9m032_get_pad_format(sensor, fh, fmt->which); + ret = 0; done: - mutex_lock(&sensor->lock); + mutex_unlock(&sensor->lock); return ret; } diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 29f463cc09cb..11e44386fa9b 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -268,10 +268,17 @@ config TWL6030_PWM This is used to control charging LED brightness. config TWL6040_CORE - bool - depends on TWL4030_CORE && GENERIC_HARDIRQS + bool "Support for TWL6040 audio codec" + depends on I2C=y && GENERIC_HARDIRQS select MFD_CORE + select REGMAP_I2C default n + help + Say yes here if you want support for Texas Instruments TWL6040 audio + codec. + This driver provides common support for accessing the device, + additional drivers must be enabled in order to use the + functionality of the device (audio, vibra). config MFD_STMPE bool "Support STMicroelectronics STMPE" diff --git a/drivers/mfd/asic3.c b/drivers/mfd/asic3.c index 1895cf9fab8c..1582c3d95257 100644 --- a/drivers/mfd/asic3.c +++ b/drivers/mfd/asic3.c @@ -527,7 +527,9 @@ static void asic3_gpio_set(struct gpio_chip *chip, static int asic3_gpio_to_irq(struct gpio_chip *chip, unsigned offset) { - return (offset < ASIC3_NUM_GPIOS) ? IRQ_BOARD_START + offset : -ENXIO; + struct asic3 *asic = container_of(chip, struct asic3, gpio); + + return (offset < ASIC3_NUM_GPIOS) ? asic->irq_base + offset : -ENXIO; } static __init int asic3_gpio_probe(struct platform_device *pdev, diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c index 95a2e546a489..c8aae6640e64 100644 --- a/drivers/mfd/omap-usb-host.c +++ b/drivers/mfd/omap-usb-host.c @@ -25,7 +25,6 @@ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/spinlock.h> -#include <linux/gpio.h> #include <plat/usb.h> #include <linux/pm_runtime.h> @@ -502,19 +501,6 @@ static void omap_usbhs_init(struct device *dev) pm_runtime_get_sync(dev); spin_lock_irqsave(&omap->lock, flags); - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[0], - GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_request_one(pdata->ehci_data->reset_gpio_port[1], - GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); - - /* Hold the PHY in RESET for enough time till DIR is high */ - udelay(10); - } - omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION); dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev); @@ -593,39 +579,10 @@ static void omap_usbhs_init(struct device *dev) usbhs_omap_tll_init(dev, OMAP_TLL_CHANNEL_COUNT); } - if (pdata->ehci_data->phy_reset) { - /* Hold the PHY in RESET for enough time till - * PHY is settled and ready - */ - udelay(10); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_set_value - (pdata->ehci_data->reset_gpio_port[0], 1); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_set_value - (pdata->ehci_data->reset_gpio_port[1], 1); - } - spin_unlock_irqrestore(&omap->lock, flags); pm_runtime_put_sync(dev); } -static void omap_usbhs_deinit(struct device *dev) -{ - struct usbhs_hcd_omap *omap = dev_get_drvdata(dev); - struct usbhs_omap_platform_data *pdata = &omap->platdata; - - if (pdata->ehci_data->phy_reset) { - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) - gpio_free(pdata->ehci_data->reset_gpio_port[0]); - - if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1])) - gpio_free(pdata->ehci_data->reset_gpio_port[1]); - } -} - /** * usbhs_omap_probe - initialize TI-based HCDs @@ -860,7 +817,6 @@ static int __devexit usbhs_omap_remove(struct platform_device *pdev) { struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev); - omap_usbhs_deinit(&pdev->dev); iounmap(omap->tll_base); iounmap(omap->uhh_base); clk_put(omap->init_60m_fclk); diff --git a/drivers/mfd/rc5t583.c b/drivers/mfd/rc5t583.c index 99ef944c621d..44afae0a69ce 100644 --- a/drivers/mfd/rc5t583.c +++ b/drivers/mfd/rc5t583.c @@ -80,44 +80,6 @@ static struct mfd_cell rc5t583_subdevs[] = { {.name = "rc5t583-key", } }; -int rc5t583_write(struct device *dev, uint8_t reg, uint8_t val) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_write(rc5t583->regmap, reg, val); -} - -int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - unsigned int ival; - int ret; - ret = regmap_read(rc5t583->regmap, reg, &ival); - if (!ret) - *val = (uint8_t)ival; - return ret; -} - -int rc5t583_set_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, bit_mask, bit_mask); -} - -int rc5t583_clear_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, bit_mask, 0); -} - -int rc5t583_update(struct device *dev, unsigned int reg, - unsigned int val, unsigned int mask) -{ - struct rc5t583 *rc5t583 = dev_get_drvdata(dev); - return regmap_update_bits(rc5t583->regmap, reg, mask, val); -} - static int __rc5t583_set_ext_pwrreq1_control(struct device *dev, int id, int ext_pwr, int slots) { @@ -197,6 +159,7 @@ int rc5t583_ext_power_req_config(struct device *dev, int ds_id, ds_id, ext_pwr_req); return 0; } +EXPORT_SYMBOL(rc5t583_ext_power_req_config); static int rc5t583_clear_ext_power_req(struct rc5t583 *rc5t583, struct rc5t583_platform_data *pdata) diff --git a/drivers/mfd/twl6040-core.c b/drivers/mfd/twl6040-core.c index b2d8e512d3cb..2d6bedadca09 100644 --- a/drivers/mfd/twl6040-core.c +++ b/drivers/mfd/twl6040-core.c @@ -30,7 +30,9 @@ #include <linux/platform_device.h> #include <linux/gpio.h> #include <linux/delay.h> -#include <linux/i2c/twl.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/err.h> #include <linux/mfd/core.h> #include <linux/mfd/twl6040.h> @@ -39,7 +41,7 @@ int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) { int ret; - u8 val = 0; + unsigned int val; mutex_lock(&twl6040->io_mutex); /* Vibra control registers from cache */ @@ -47,7 +49,7 @@ int twl6040_reg_read(struct twl6040 *twl6040, unsigned int reg) reg == TWL6040_REG_VIBCTLR)) { val = twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)]; } else { - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); + ret = regmap_read(twl6040->regmap, reg, &val); if (ret < 0) { mutex_unlock(&twl6040->io_mutex); return ret; @@ -64,7 +66,7 @@ int twl6040_reg_write(struct twl6040 *twl6040, unsigned int reg, u8 val) int ret; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); + ret = regmap_write(twl6040->regmap, reg, val); /* Cache the vibra control registers */ if (reg == TWL6040_REG_VIBCTLL || reg == TWL6040_REG_VIBCTLR) twl6040->vibra_ctrl_cache[VIBRACTRL_MEMBER(reg)] = val; @@ -77,16 +79,9 @@ EXPORT_SYMBOL(twl6040_reg_write); int twl6040_set_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) { int ret; - u8 val; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); - if (ret) - goto out; - - val |= mask; - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); -out: + ret = regmap_update_bits(twl6040->regmap, reg, mask, mask); mutex_unlock(&twl6040->io_mutex); return ret; } @@ -95,16 +90,9 @@ EXPORT_SYMBOL(twl6040_set_bits); int twl6040_clear_bits(struct twl6040 *twl6040, unsigned int reg, u8 mask) { int ret; - u8 val; mutex_lock(&twl6040->io_mutex); - ret = twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &val, reg); - if (ret) - goto out; - - val &= ~mask; - ret = twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, val, reg); -out: + ret = regmap_update_bits(twl6040->regmap, reg, mask, 0); mutex_unlock(&twl6040->io_mutex); return ret; } @@ -494,32 +482,58 @@ static struct resource twl6040_codec_rsrc[] = { }, }; -static int __devinit twl6040_probe(struct platform_device *pdev) +static bool twl6040_readable_reg(struct device *dev, unsigned int reg) { - struct twl4030_audio_data *pdata = pdev->dev.platform_data; + /* Register 0 is not readable */ + if (!reg) + return false; + return true; +} + +static struct regmap_config twl6040_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = TWL6040_REG_STATUS, /* 0x2e */ + + .readable_reg = twl6040_readable_reg, +}; + +static int __devinit twl6040_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct twl6040_platform_data *pdata = client->dev.platform_data; struct twl6040 *twl6040; struct mfd_cell *cell = NULL; int ret, children = 0; if (!pdata) { - dev_err(&pdev->dev, "Platform data is missing\n"); + dev_err(&client->dev, "Platform data is missing\n"); return -EINVAL; } /* In order to operate correctly we need valid interrupt config */ - if (!pdata->naudint_irq || !pdata->irq_base) { - dev_err(&pdev->dev, "Invalid IRQ configuration\n"); + if (!client->irq || !pdata->irq_base) { + dev_err(&client->dev, "Invalid IRQ configuration\n"); return -EINVAL; } - twl6040 = kzalloc(sizeof(struct twl6040), GFP_KERNEL); - if (!twl6040) - return -ENOMEM; + twl6040 = devm_kzalloc(&client->dev, sizeof(struct twl6040), + GFP_KERNEL); + if (!twl6040) { + ret = -ENOMEM; + goto err; + } + + twl6040->regmap = regmap_init_i2c(client, &twl6040_regmap_config); + if (IS_ERR(twl6040->regmap)) { + ret = PTR_ERR(twl6040->regmap); + goto err; + } - platform_set_drvdata(pdev, twl6040); + i2c_set_clientdata(client, twl6040); - twl6040->dev = &pdev->dev; - twl6040->irq = pdata->naudint_irq; + twl6040->dev = &client->dev; + twl6040->irq = client->irq; twl6040->irq_base = pdata->irq_base; mutex_init(&twl6040->mutex); @@ -588,12 +602,12 @@ static int __devinit twl6040_probe(struct platform_device *pdev) } if (children) { - ret = mfd_add_devices(&pdev->dev, pdev->id, twl6040->cells, + ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children, NULL, 0); if (ret) goto mfd_err; } else { - dev_err(&pdev->dev, "No platform data found for children\n"); + dev_err(&client->dev, "No platform data found for children\n"); ret = -ENODEV; goto mfd_err; } @@ -608,14 +622,15 @@ gpio2_err: if (gpio_is_valid(twl6040->audpwron)) gpio_free(twl6040->audpwron); gpio1_err: - platform_set_drvdata(pdev, NULL); - kfree(twl6040); + i2c_set_clientdata(client, NULL); + regmap_exit(twl6040->regmap); +err: return ret; } -static int __devexit twl6040_remove(struct platform_device *pdev) +static int __devexit twl6040_remove(struct i2c_client *client) { - struct twl6040 *twl6040 = platform_get_drvdata(pdev); + struct twl6040 *twl6040 = i2c_get_clientdata(client); if (twl6040->power_count) twl6040_power(twl6040, 0); @@ -626,23 +641,30 @@ static int __devexit twl6040_remove(struct platform_device *pdev) free_irq(twl6040->irq_base + TWL6040_IRQ_READY, twl6040); twl6040_irq_exit(twl6040); - mfd_remove_devices(&pdev->dev); - platform_set_drvdata(pdev, NULL); - kfree(twl6040); + mfd_remove_devices(&client->dev); + i2c_set_clientdata(client, NULL); + regmap_exit(twl6040->regmap); return 0; } -static struct platform_driver twl6040_driver = { +static const struct i2c_device_id twl6040_i2c_id[] = { + { "twl6040", 0, }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, twl6040_i2c_id); + +static struct i2c_driver twl6040_driver = { + .driver = { + .name = "twl6040", + .owner = THIS_MODULE, + }, .probe = twl6040_probe, .remove = __devexit_p(twl6040_remove), - .driver = { - .owner = THIS_MODULE, - .name = "twl6040", - }, + .id_table = twl6040_i2c_id, }; -module_platform_driver(twl6040_driver); +module_i2c_driver(twl6040_driver); MODULE_DESCRIPTION("TWL6040 MFD"); MODULE_AUTHOR("Misael Lopez Cruz <misael.lopez@ti.com>"); diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index b1809650b7aa..dabec556ebb8 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -873,7 +873,7 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, { struct mmc_blk_data *md = mq->data; struct mmc_card *card = md->queue.card; - unsigned int from, nr, arg; + unsigned int from, nr, arg, trim_arg, erase_arg; int err = 0, type = MMC_BLK_SECDISCARD; if (!(mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card))) { @@ -881,20 +881,26 @@ static int mmc_blk_issue_secdiscard_rq(struct mmc_queue *mq, goto out; } + from = blk_rq_pos(req); + nr = blk_rq_sectors(req); + /* The sanitize operation is supported at v4.5 only */ if (mmc_can_sanitize(card)) { - err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_SANITIZE_START, 1, 0); - goto out; + erase_arg = MMC_ERASE_ARG; + trim_arg = MMC_TRIM_ARG; + } else { + erase_arg = MMC_SECURE_ERASE_ARG; + trim_arg = MMC_SECURE_TRIM1_ARG; } - from = blk_rq_pos(req); - nr = blk_rq_sectors(req); - - if (mmc_can_trim(card) && !mmc_erase_group_aligned(card, from, nr)) - arg = MMC_SECURE_TRIM1_ARG; - else - arg = MMC_SECURE_ERASE_ARG; + if (mmc_erase_group_aligned(card, from, nr)) + arg = erase_arg; + else if (mmc_can_trim(card)) + arg = trim_arg; + else { + err = -EINVAL; + goto out; + } retry: if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, @@ -904,25 +910,41 @@ retry: INAND_CMD38_ARG_SECERASE, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, arg); - if (!err && arg == MMC_SECURE_TRIM1_ARG) { + if (err == -EIO) + goto out_retry; + if (err) + goto out; + + if (arg == MMC_SECURE_TRIM1_ARG) { if (card->quirks & MMC_QUIRK_INAND_CMD38) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, INAND_CMD38_ARG_EXT_CSD, INAND_CMD38_ARG_SECTRIM2, 0); if (err) - goto out; + goto out_retry; } + err = mmc_erase(card, from, nr, MMC_SECURE_TRIM2_ARG); + if (err == -EIO) + goto out_retry; + if (err) + goto out; } -out: - if (err == -EIO && !mmc_blk_reset(md, card->host, type)) + + if (mmc_can_sanitize(card)) + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, + EXT_CSD_SANITIZE_START, 1, 0); +out_retry: + if (err && !mmc_blk_reset(md, card->host, type)) goto retry; if (!err) mmc_blk_reset_success(md, type); +out: spin_lock_irq(&md->lock); __blk_end_request(req, err, blk_rq_bytes(req)); spin_unlock_irq(&md->lock); @@ -1802,7 +1824,7 @@ static void mmc_blk_remove(struct mmc_card *card) } #ifdef CONFIG_PM -static int mmc_blk_suspend(struct mmc_card *card, pm_message_t state) +static int mmc_blk_suspend(struct mmc_card *card) { struct mmc_blk_data *part_md; struct mmc_blk_data *md = mmc_get_drvdata(card); diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 2517547b4366..996f8e36e23d 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -139,7 +139,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q); q->limits.max_discard_sectors = max_discard; - if (card->erased_byte == 0) + if (card->erased_byte == 0 && !mmc_can_discard(card)) q->limits.discard_zeroes_data = 1; q->limits.discard_granularity = card->pref_erase << 9; /* granularity must not be greater than max. discard */ diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 3f606068d552..c60cee92a2b2 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -122,14 +122,14 @@ static int mmc_bus_remove(struct device *dev) return 0; } -static int mmc_bus_suspend(struct device *dev, pm_message_t state) +static int mmc_bus_suspend(struct device *dev) { struct mmc_driver *drv = to_mmc_driver(dev->driver); struct mmc_card *card = mmc_dev_to_card(dev); int ret = 0; if (dev->driver && drv->suspend) - ret = drv->suspend(card, state); + ret = drv->suspend(card); return ret; } @@ -165,20 +165,14 @@ static int mmc_runtime_idle(struct device *dev) return pm_runtime_suspend(dev); } +#endif /* !CONFIG_PM_RUNTIME */ + static const struct dev_pm_ops mmc_bus_pm_ops = { - .runtime_suspend = mmc_runtime_suspend, - .runtime_resume = mmc_runtime_resume, - .runtime_idle = mmc_runtime_idle, + SET_RUNTIME_PM_OPS(mmc_runtime_suspend, mmc_runtime_resume, + mmc_runtime_idle) + SET_SYSTEM_SLEEP_PM_OPS(mmc_bus_suspend, mmc_bus_resume) }; -#define MMC_PM_OPS_PTR (&mmc_bus_pm_ops) - -#else /* !CONFIG_PM_RUNTIME */ - -#define MMC_PM_OPS_PTR NULL - -#endif /* !CONFIG_PM_RUNTIME */ - static struct bus_type mmc_bus_type = { .name = "mmc", .dev_attrs = mmc_dev_attrs, @@ -186,9 +180,7 @@ static struct bus_type mmc_bus_type = { .uevent = mmc_bus_uevent, .probe = mmc_bus_probe, .remove = mmc_bus_remove, - .suspend = mmc_bus_suspend, - .resume = mmc_bus_resume, - .pm = MMC_PM_OPS_PTR, + .pm = &mmc_bus_pm_ops, }; int mmc_register_bus(void) diff --git a/drivers/mmc/core/cd-gpio.c b/drivers/mmc/core/cd-gpio.c index 29de31e260dd..2c14be73254c 100644 --- a/drivers/mmc/core/cd-gpio.c +++ b/drivers/mmc/core/cd-gpio.c @@ -12,6 +12,7 @@ #include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/jiffies.h> +#include <linux/mmc/cd-gpio.h> #include <linux/mmc/host.h> #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 7474c47b9c08..ba821fe70bca 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1409,7 +1409,10 @@ static unsigned int mmc_mmc_erase_timeout(struct mmc_card *card, { unsigned int erase_timeout; - if (card->ext_csd.erase_group_def & 1) { + if (arg == MMC_DISCARD_ARG || + (arg == MMC_TRIM_ARG && card->ext_csd.rev >= 6)) { + erase_timeout = card->ext_csd.trim_timeout; + } else if (card->ext_csd.erase_group_def & 1) { /* High Capacity Erase Group Size uses HC timeouts */ if (arg == MMC_TRIM_ARG) erase_timeout = card->ext_csd.trim_timeout; @@ -1681,8 +1684,6 @@ int mmc_can_trim(struct mmc_card *card) { if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_GB_CL_EN) return 1; - if (mmc_can_discard(card)) - return 1; return 0; } EXPORT_SYMBOL(mmc_can_trim); @@ -1701,6 +1702,8 @@ EXPORT_SYMBOL(mmc_can_discard); int mmc_can_sanitize(struct mmc_card *card) { + if (!mmc_can_trim(card) && !mmc_can_erase(card)) + return 0; if (card->ext_csd.sec_feature_support & EXT_CSD_SEC_SANITIZE) return 1; return 0; @@ -2235,6 +2238,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) mmc_card_is_removable(host)) return err; + mmc_claim_host(host); if (card && mmc_card_mmc(card) && (card->ext_csd.cache_size > 0)) { enable = !!enable; @@ -2252,6 +2256,7 @@ int mmc_cache_ctrl(struct mmc_host *host, u8 enable) card->ext_csd.cache_ctrl = enable; } } + mmc_release_host(host); return err; } @@ -2269,49 +2274,32 @@ int mmc_suspend_host(struct mmc_host *host) cancel_delayed_work(&host->detect); mmc_flush_scheduled_work(); - if (mmc_try_claim_host(host)) { - err = mmc_cache_ctrl(host, 0); - mmc_release_host(host); - } else { - err = -EBUSY; - } + err = mmc_cache_ctrl(host, 0); if (err) goto out; mmc_bus_get(host); if (host->bus_ops && !host->bus_dead) { - /* - * A long response time is not acceptable for device drivers - * when doing suspend. Prevent mmc_claim_host in the suspend - * sequence, to potentially wait "forever" by trying to - * pre-claim the host. - */ - if (mmc_try_claim_host(host)) { - if (host->bus_ops->suspend) { - err = host->bus_ops->suspend(host); - } - mmc_release_host(host); + if (host->bus_ops->suspend) + err = host->bus_ops->suspend(host); - if (err == -ENOSYS || !host->bus_ops->resume) { - /* - * We simply "remove" the card in this case. - * It will be redetected on resume. (Calling - * bus_ops->remove() with a claimed host can - * deadlock.) - */ - if (host->bus_ops->remove) - host->bus_ops->remove(host); - mmc_claim_host(host); - mmc_detach_bus(host); - mmc_power_off(host); - mmc_release_host(host); - host->pm_flags = 0; - err = 0; - } - } else { - err = -EBUSY; + if (err == -ENOSYS || !host->bus_ops->resume) { + /* + * We simply "remove" the card in this case. + * It will be redetected on resume. (Calling + * bus_ops->remove() with a claimed host can + * deadlock.) + */ + if (host->bus_ops->remove) + host->bus_ops->remove(host); + mmc_claim_host(host); + mmc_detach_bus(host); + mmc_power_off(host); + mmc_release_host(host); + host->pm_flags = 0; + err = 0; } } mmc_bus_put(host); diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index bf3c9b456aaf..ab3fc4617107 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -526,8 +526,10 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data) return -ENODEV; sg_len = dw_mci_pre_dma_transfer(host, data, 0); - if (sg_len < 0) + if (sg_len < 0) { + host->dma_ops->stop(host); return sg_len; + } host->using_dma = 1; @@ -1879,7 +1881,8 @@ static void dw_mci_init_dma(struct dw_mci *host) if (!host->dma_ops) goto no_dma; - if (host->dma_ops->init) { + if (host->dma_ops->init && host->dma_ops->start && + host->dma_ops->stop && host->dma_ops->cleanup) { if (host->dma_ops->init(host)) { dev_err(&host->dev, "%s: Unable to initialize " "DMA Controller.\n", __func__); diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 5c2b1c10af9c..56d4499d4388 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -249,7 +249,7 @@ static int omap_hsmmc_set_power(struct device *dev, int slot, int power_on, * the pbias cell programming support is still missing when * booting with Device tree */ - if (of_have_populated_dt() && !vdd) + if (dev->of_node && !vdd) return 0; if (mmc_slot(host).before_set_reg) @@ -1549,7 +1549,7 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) * can't be allowed when booting with device * tree. */ - (!of_have_populated_dt())) { + !host->dev->of_node) { /* * The mmc_select_voltage fn of the core does * not seem to set the power_mode to @@ -1741,7 +1741,7 @@ static const struct of_device_id omap_mmc_of_match[] = { .data = &omap4_reg_offset, }, {}, -} +}; MODULE_DEVICE_TABLE(of, omap_mmc_of_match); static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev) diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c index 6193a0d7bde5..8abdaf6697a8 100644 --- a/drivers/mmc/host/sdhci-esdhc-imx.c +++ b/drivers/mmc/host/sdhci-esdhc-imx.c @@ -467,8 +467,7 @@ static int __devinit sdhci_esdhc_imx_probe(struct platform_device *pdev) clk_prepare_enable(clk); pltfm_host->clk = clk; - if (!is_imx25_esdhc(imx_data)) - host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; + host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL; if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data)) /* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */ diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9aa77f3f04a8..ccefdebeff14 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -147,7 +147,7 @@ static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) u32 present, irqs; if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) || - !mmc_card_is_removable(host->mmc)) + (host->mmc->caps & MMC_CAP_NONREMOVABLE)) return; present = sdhci_readl(host, SDHCI_PRESENT_STATE) & diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index d20f1334792b..111569ccab43 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -991,8 +991,8 @@ static void pci_restore_config_dword(struct pci_dev *pdev, int offset, } } -static void pci_restore_config_space(struct pci_dev *pdev, int start, int end, - int retry) +static void pci_restore_config_space_range(struct pci_dev *pdev, + int start, int end, int retry) { int index; @@ -1002,6 +1002,18 @@ static void pci_restore_config_space(struct pci_dev *pdev, int start, int end, retry); } +static void pci_restore_config_space(struct pci_dev *pdev) +{ + if (pdev->hdr_type == PCI_HEADER_TYPE_NORMAL) { + pci_restore_config_space_range(pdev, 10, 15, 0); + /* Restore BARs before the command register. */ + pci_restore_config_space_range(pdev, 4, 9, 10); + pci_restore_config_space_range(pdev, 0, 3, 0); + } else { + pci_restore_config_space_range(pdev, 0, 15, 0); + } +} + /** * pci_restore_state - Restore the saved state of a PCI device * @dev: - PCI device that we're dealing with @@ -1015,13 +1027,7 @@ void pci_restore_state(struct pci_dev *dev) pci_restore_pcie_state(dev); pci_restore_ats_state(dev); - pci_restore_config_space(dev, 10, 15, 0); - /* - * The Base Address register should be programmed before the command - * register(s) - */ - pci_restore_config_space(dev, 4, 9, 10); - pci_restore_config_space(dev, 0, 3, 0); + pci_restore_config_space(dev); pci_restore_pcix_state(dev); pci_restore_msi_state(dev); diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index c21871a4e73d..bc2e8a7c265b 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -2844,6 +2844,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( sector_t recid, trkid; unsigned int offs; unsigned int count, count_to_trk_end; + int ret; basedev = block->base; if (rq_data_dir(req) == READ) { @@ -2884,8 +2885,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( itcw = itcw_init(cqr->data, itcw_size, itcw_op, 0, ctidaw, 0); if (IS_ERR(itcw)) { - dasd_sfree_request(cqr, startdev); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto out_error; } cqr->cpaddr = itcw_get_tcw(itcw); if (prepare_itcw(itcw, first_trk, last_trk, @@ -2897,8 +2898,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( /* Clock not in sync and XRC is enabled. * Try again later. */ - dasd_sfree_request(cqr, startdev); - return ERR_PTR(-EAGAIN); + ret = -EAGAIN; + goto out_error; } len_to_track_end = 0; /* @@ -2937,8 +2938,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( tidaw_flags = 0; last_tidaw = itcw_add_tidaw(itcw, tidaw_flags, dst, part_len); - if (IS_ERR(last_tidaw)) - return ERR_PTR(-EINVAL); + if (IS_ERR(last_tidaw)) { + ret = -EINVAL; + goto out_error; + } dst += part_len; } } @@ -2947,8 +2950,10 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( dst = page_address(bv->bv_page) + bv->bv_offset; last_tidaw = itcw_add_tidaw(itcw, 0x00, dst, bv->bv_len); - if (IS_ERR(last_tidaw)) - return ERR_PTR(-EINVAL); + if (IS_ERR(last_tidaw)) { + ret = -EINVAL; + goto out_error; + } } } last_tidaw->flags |= TIDAW_FLAGS_LAST; @@ -2968,6 +2973,9 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_tpm_track( cqr->buildclk = get_clock(); cqr->status = DASD_CQR_FILLED; return cqr; +out_error: + dasd_sfree_request(cqr, startdev); + return ERR_PTR(ret); } static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev, diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index 85f4a9a5d12e..73bef0bd394c 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -903,7 +903,7 @@ static int ur_set_online(struct ccw_device *cdev) goto fail_urdev_put; } - cdev_init(urd->char_device, &ur_fops); + urd->char_device->ops = &ur_fops; urd->char_device->dev = MKDEV(major, minor); urd->char_device->owner = ur_fops.owner; diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c index 24145c30c9b0..6cc4358f68c1 100644 --- a/drivers/tty/amiserial.c +++ b/drivers/tty/amiserial.c @@ -1073,8 +1073,10 @@ static int set_serial_info(struct tty_struct *tty, struct serial_state *state, (new_serial.close_delay != port->close_delay) || (new_serial.xmit_fifo_size != state->xmit_fifo_size) || ((new_serial.flags & ~ASYNC_USR_MASK) != - (port->flags & ~ASYNC_USR_MASK))) + (port->flags & ~ASYNC_USR_MASK))) { + tty_unlock(); return -EPERM; + } port->flags = ((port->flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK)); state->custom_divisor = new_serial.custom_divisor; diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c index e6c3dbd781d6..836fe2731234 100644 --- a/drivers/tty/serial/clps711x.c +++ b/drivers/tty/serial/clps711x.c @@ -154,10 +154,9 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id) port->x_char = 0; return IRQ_HANDLED; } - if (uart_circ_empty(xmit) || uart_tx_stopped(port)) { - clps711xuart_stop_tx(port); - return IRQ_HANDLED; - } + + if (uart_circ_empty(xmit) || uart_tx_stopped(port)) + goto disable_tx_irq; count = port->fifosize >> 1; do { @@ -171,8 +170,11 @@ static irqreturn_t clps711xuart_int_tx(int irq, void *dev_id) if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_empty(xmit)) - clps711xuart_stop_tx(port); + if (uart_circ_empty(xmit)) { + disable_tx_irq: + disable_irq_nosync(TX_IRQ(port)); + tx_enabled(port) = 0; + } return IRQ_HANDLED; } diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c index bbbec4a74cfb..c2816f494807 100644 --- a/drivers/tty/serial/pch_uart.c +++ b/drivers/tty/serial/pch_uart.c @@ -1447,9 +1447,11 @@ static int pch_uart_verify_port(struct uart_port *port, __func__); return -EOPNOTSUPP; #endif - priv->use_dma = 1; priv->use_dma_flag = 1; dev_info(priv->port.dev, "PCH UART : Use DMA Mode\n"); + if (!priv->use_dma) + pch_request_dma(port); + priv->use_dma = 1; } return 0; diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index a2aa9d652c67..ec6c97dadbe4 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1667,7 +1667,6 @@ void usb_disconnect(struct usb_device **pdev) { struct usb_device *udev = *pdev; int i; - struct usb_hcd *hcd = bus_to_hcd(udev->bus); /* mark the device as inactive, so any further urb submissions for * this device (and any of its children) will fail immediately. @@ -1690,9 +1689,7 @@ void usb_disconnect(struct usb_device **pdev) * so that the hardware is now fully quiesced. */ dev_dbg (&udev->dev, "unregistering device\n"); - mutex_lock(hcd->bandwidth_mutex); usb_disable_device(udev, 0); - mutex_unlock(hcd->bandwidth_mutex); usb_hcd_synchronize_unlinks(udev); usb_remove_ep_devs(&udev->ep0); diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c index aed3e07942d4..ca717da3be95 100644 --- a/drivers/usb/core/message.c +++ b/drivers/usb/core/message.c @@ -1136,8 +1136,6 @@ void usb_disable_interface(struct usb_device *dev, struct usb_interface *intf, * Deallocates hcd/hardware state for the endpoints (nuking all or most * pending urbs) and usbcore state for the interfaces, so that usbcore * must usb_set_configuration() before any interfaces could be used. - * - * Must be called with hcd->bandwidth_mutex held. */ void usb_disable_device(struct usb_device *dev, int skip_ep0) { @@ -1190,7 +1188,9 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0) usb_disable_endpoint(dev, i + USB_DIR_IN, false); } /* Remove endpoints from the host controller internal state */ + mutex_lock(hcd->bandwidth_mutex); usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL); + mutex_unlock(hcd->bandwidth_mutex); /* Second pass: remove endpoint pointers */ } for (i = skip_ep0; i < 16; ++i) { @@ -1750,7 +1750,6 @@ free_interfaces: /* if it's already configured, clear out old state first. * getting rid of old interfaces means unbinding their drivers. */ - mutex_lock(hcd->bandwidth_mutex); if (dev->state != USB_STATE_ADDRESS) usb_disable_device(dev, 1); /* Skip ep0 */ @@ -1763,6 +1762,7 @@ free_interfaces: * host controller will not allow submissions to dropped endpoints. If * this call fails, the device state is unchanged. */ + mutex_lock(hcd->bandwidth_mutex); ret = usb_hcd_alloc_bandwidth(dev, cp, NULL, NULL); if (ret < 0) { mutex_unlock(hcd->bandwidth_mutex); diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7bd815a507e8..99b58d84553a 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -206,11 +206,11 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc) for (i = 0; i < dwc->num_event_buffers; i++) { evt = dwc->ev_buffs[i]; - if (evt) { + if (evt) dwc3_free_one_event_buffer(dwc, evt); - dwc->ev_buffs[i] = NULL; - } } + + kfree(dwc->ev_buffs); } /** diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c index 25910e251c04..3584a169886f 100644 --- a/drivers/usb/dwc3/ep0.c +++ b/drivers/usb/dwc3/ep0.c @@ -353,6 +353,9 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc, dwc->test_mode_nr = wIndex >> 8; dwc->test_mode = true; + break; + default: + return -EINVAL; } break; @@ -559,15 +562,20 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc, length = trb->size & DWC3_TRB_SIZE_MASK; if (dwc->ep0_bounced) { + unsigned transfer_size = ur->length; + unsigned maxp = ep0->endpoint.maxpacket; + + transfer_size += (maxp - (transfer_size % maxp)); transferred = min_t(u32, ur->length, - ep0->endpoint.maxpacket - length); + transfer_size - length); memcpy(ur->buf, dwc->ep0_bounce, transferred); dwc->ep0_bounced = false; } else { transferred = ur->length - length; - ur->actual += transferred; } + ur->actual += transferred; + if ((epnum & 1) && ur->actual < ur->length) { /* for some reason we did not get everything out */ diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index 0c935d7c65bd..9d7bcd910074 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -1863,8 +1863,8 @@ static int __devinit at91udc_probe(struct platform_device *pdev) mod_timer(&udc->vbus_timer, jiffies + VBUS_POLL_TIMEOUT); } else { - if (request_irq(udc->board.vbus_pin, at91_vbus_irq, - 0, driver_name, udc)) { + if (request_irq(gpio_to_irq(udc->board.vbus_pin), + at91_vbus_irq, 0, driver_name, udc)) { DBG("request vbus irq %d failed\n", udc->board.vbus_pin); retval = -EBUSY; @@ -1886,7 +1886,7 @@ static int __devinit at91udc_probe(struct platform_device *pdev) return 0; fail4: if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled) - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); fail3: if (gpio_is_valid(udc->board.vbus_pin)) gpio_free(udc->board.vbus_pin); @@ -1924,7 +1924,7 @@ static int __exit at91udc_remove(struct platform_device *pdev) device_init_wakeup(&pdev->dev, 0); remove_debug_file(udc); if (gpio_is_valid(udc->board.vbus_pin)) { - free_irq(udc->board.vbus_pin, udc); + free_irq(gpio_to_irq(udc->board.vbus_pin), udc); gpio_free(udc->board.vbus_pin); } free_irq(udc->udp_irq, udc); diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index 1cbba70836bc..f52cb1ae45d9 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -712,7 +712,7 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value) if (code == FUNCTIONFS_INTERFACE_REVMAP) { struct ffs_function *func = ffs->func; ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV; - } else if (gadget->ops->ioctl) { + } else if (gadget && gadget->ops->ioctl) { ret = gadget->ops->ioctl(gadget, code, value); } else { ret = -ENOTTY; @@ -1382,6 +1382,7 @@ static void functionfs_unbind(struct ffs_data *ffs) ffs->ep0req = NULL; ffs->gadget = NULL; ffs_data_put(ffs); + clear_bit(FFS_FL_BOUND, &ffs->flags); } } diff --git a/drivers/usb/gadget/f_rndis.c b/drivers/usb/gadget/f_rndis.c index 7b1cf18df5e3..52343654f5df 100644 --- a/drivers/usb/gadget/f_rndis.c +++ b/drivers/usb/gadget/f_rndis.c @@ -500,6 +500,7 @@ rndis_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) if (buf) { memcpy(req->buf, buf, n); req->complete = rndis_response_complete; + req->context = rndis; rndis_free_response(rndis->config, buf); value = n; } diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c index 5f94e79cd6b9..55abfb6bd612 100644 --- a/drivers/usb/gadget/fsl_udc_core.c +++ b/drivers/usb/gadget/fsl_udc_core.c @@ -730,7 +730,7 @@ static void fsl_queue_td(struct fsl_ep *ep, struct fsl_req *req) : (1 << (ep_index(ep))); /* check if the pipe is empty */ - if (!(list_empty(&ep->queue))) { + if (!(list_empty(&ep->queue)) && !(ep_index(ep) == 0)) { /* Add td to the end */ struct fsl_req *lastreq; lastreq = list_entry(ep->queue.prev, struct fsl_req, queue); @@ -918,10 +918,6 @@ fsl_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags) return -ENOMEM; } - /* Update ep0 state */ - if ((ep_index(ep) == 0)) - udc->ep0_state = DATA_STATE_XMIT; - /* irq handler advances the queue */ if (req != NULL) list_add_tail(&req->queue, &ep->queue); @@ -1279,7 +1275,8 @@ static int ep0_prime_status(struct fsl_udc *udc, int direction) udc->ep0_dir = USB_DIR_OUT; ep = &udc->eps[0]; - udc->ep0_state = WAIT_FOR_OUT_STATUS; + if (udc->ep0_state != DATA_STATE_XMIT) + udc->ep0_state = WAIT_FOR_OUT_STATUS; req->ep = ep; req->req.length = 0; @@ -1384,6 +1381,9 @@ static void ch9getstatus(struct fsl_udc *udc, u8 request_type, u16 value, list_add_tail(&req->queue, &ep->queue); udc->ep0_state = DATA_STATE_XMIT; + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + return; stall: ep0stall(udc); @@ -1492,6 +1492,14 @@ static void setup_received_irq(struct fsl_udc *udc, spin_lock(&udc->lock); udc->ep0_state = (setup->bRequestType & USB_DIR_IN) ? DATA_STATE_XMIT : DATA_STATE_RECV; + /* + * If the data stage is IN, send status prime immediately. + * See 2.0 Spec chapter 8.5.3.3 for detail. + */ + if (udc->ep0_state == DATA_STATE_XMIT) + if (ep0_prime_status(udc, EP_DIR_OUT)) + ep0stall(udc); + } else { /* No data phase, IN status from gadget */ udc->ep0_dir = USB_DIR_IN; @@ -1520,9 +1528,8 @@ static void ep0_req_complete(struct fsl_udc *udc, struct fsl_ep *ep0, switch (udc->ep0_state) { case DATA_STATE_XMIT: - /* receive status phase */ - if (ep0_prime_status(udc, EP_DIR_OUT)) - ep0stall(udc); + /* already primed at setup_received_irq */ + udc->ep0_state = WAIT_FOR_OUT_STATUS; break; case DATA_STATE_RECV: /* send status phase */ diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c index 331cd6729d3c..a85eaf40b948 100644 --- a/drivers/usb/gadget/g_ffs.c +++ b/drivers/usb/gadget/g_ffs.c @@ -161,7 +161,7 @@ static struct usb_composite_driver gfs_driver = { static struct ffs_data *gfs_ffs_data; static unsigned long gfs_registered; -static int gfs_init(void) +static int __init gfs_init(void) { ENTER(); @@ -169,7 +169,7 @@ static int gfs_init(void) } module_init(gfs_init); -static void gfs_exit(void) +static void __exit gfs_exit(void) { ENTER(); diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c index 69295ba9d99a..105b206cd844 100644 --- a/drivers/usb/gadget/s3c-hsotg.c +++ b/drivers/usb/gadget/s3c-hsotg.c @@ -340,7 +340,7 @@ static void s3c_hsotg_init_fifo(struct s3c_hsotg *hsotg) /* currently we allocate TX FIFOs for all possible endpoints, * and assume that they are all the same size. */ - for (ep = 0; ep <= 15; ep++) { + for (ep = 1; ep <= 15; ep++) { val = addr; val |= size << S3C_DPTXFSIZn_DPTxFSize_SHIFT; addr += size; @@ -741,7 +741,7 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg, /* write size / packets */ writel(epsize, hsotg->regs + epsize_reg); - if (using_dma(hsotg)) { + if (using_dma(hsotg) && !continuing) { unsigned int dma_reg; /* write DMA address to control register, buffer already @@ -1696,10 +1696,12 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg, reg |= mpsval; writel(reg, regs + S3C_DIEPCTL(ep)); - reg = readl(regs + S3C_DOEPCTL(ep)); - reg &= ~S3C_DxEPCTL_MPS_MASK; - reg |= mpsval; - writel(reg, regs + S3C_DOEPCTL(ep)); + if (ep) { + reg = readl(regs + S3C_DOEPCTL(ep)); + reg &= ~S3C_DxEPCTL_MPS_MASK; + reg |= mpsval; + writel(reg, regs + S3C_DOEPCTL(ep)); + } return; @@ -1919,7 +1921,8 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx, ints & S3C_DIEPMSK_TxFIFOEmpty) { dev_dbg(hsotg->dev, "%s: ep%d: TxFIFOEmpty\n", __func__, idx); - s3c_hsotg_trytx(hsotg, hs_ep); + if (!using_dma(hsotg)) + s3c_hsotg_trytx(hsotg, hs_ep); } } } diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c index 56da49f31d6c..2fa9865babed 100644 --- a/drivers/usb/gadget/udc-core.c +++ b/drivers/usb/gadget/udc-core.c @@ -264,8 +264,8 @@ static void usb_gadget_remove_driver(struct usb_udc *udc) if (udc_is_newstyle(udc)) { udc->driver->disconnect(udc->gadget); udc->driver->unbind(udc->gadget); - usb_gadget_udc_stop(udc->gadget, udc->driver); usb_gadget_disconnect(udc->gadget); + usb_gadget_udc_stop(udc->gadget, udc->driver); } else { usb_gadget_stop(udc->gadget, udc->driver); } @@ -411,8 +411,12 @@ static ssize_t usb_udc_softconn_store(struct device *dev, struct usb_udc *udc = container_of(dev, struct usb_udc, dev); if (sysfs_streq(buf, "connect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_start(udc->gadget, udc->driver); usb_gadget_connect(udc->gadget); } else if (sysfs_streq(buf, "disconnect")) { + if (udc_is_newstyle(udc)) + usb_gadget_udc_stop(udc->gadget, udc->driver); usb_gadget_disconnect(udc->gadget); } else { dev_err(dev, "unsupported command '%s'\n", buf); diff --git a/drivers/usb/gadget/uvc_queue.c b/drivers/usb/gadget/uvc_queue.c index d776adb2da67..0cdf89d32a15 100644 --- a/drivers/usb/gadget/uvc_queue.c +++ b/drivers/usb/gadget/uvc_queue.c @@ -543,11 +543,11 @@ done: return ret; } +/* called with queue->irqlock held.. */ static struct uvc_buffer * uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) { struct uvc_buffer *nextbuf; - unsigned long flags; if ((queue->flags & UVC_QUEUE_DROP_INCOMPLETE) && buf->buf.length != buf->buf.bytesused) { @@ -556,14 +556,12 @@ uvc_queue_next_buffer(struct uvc_video_queue *queue, struct uvc_buffer *buf) return buf; } - spin_lock_irqsave(&queue->irqlock, flags); list_del(&buf->queue); if (!list_empty(&queue->irqqueue)) nextbuf = list_first_entry(&queue->irqqueue, struct uvc_buffer, queue); else nextbuf = NULL; - spin_unlock_irqrestore(&queue->irqlock, flags); buf->buf.sequence = queue->sequence++; do_gettimeofday(&buf->buf.timestamp); diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c index 3e7345172e03..d0a84bd3f3eb 100644 --- a/drivers/usb/host/ehci-fsl.c +++ b/drivers/usb/host/ehci-fsl.c @@ -218,6 +218,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, u32 portsc; struct usb_hcd *hcd = ehci_to_hcd(ehci); void __iomem *non_ehci = hcd->regs; + struct fsl_usb2_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; portsc = ehci_readl(ehci, &ehci->regs->port_status[port_offset]); portsc &= ~(PORT_PTS_MSK | PORT_PTS_PTW); @@ -234,7 +237,9 @@ static void ehci_fsl_setup_phy(struct ehci_hcd *ehci, /* fall through */ case FSL_USB2_PHY_UTMI: /* enable UTMI PHY */ - setbits32(non_ehci + FSL_SOC_USB_CTRL, CTRL_UTMI_PHY_EN); + if (pdata->have_sysif_regs) + setbits32(non_ehci + FSL_SOC_USB_CTRL, + CTRL_UTMI_PHY_EN); portsc |= PORT_PTS_UTMI; break; case FSL_USB2_PHY_NONE: diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 806cc95317aa..4a3bc5b7a06f 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -858,8 +858,13 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) goto dead; } + /* + * We don't use STS_FLR, but some controllers don't like it to + * remain on, so mask it out along with the other status bits. + */ + masked_status = status & (INTR_MASK | STS_FLR); + /* Shared IRQ? */ - masked_status = status & INTR_MASK; if (!masked_status || unlikely(ehci->rh_state == EHCI_RH_HALTED)) { spin_unlock(&ehci->lock); return IRQ_NONE; @@ -910,7 +915,7 @@ static irqreturn_t ehci_irq (struct usb_hcd *hcd) pcd_status = status; /* resume root hub? */ - if (!(cmd & CMD_RUN)) + if (ehci->rh_state == EHCI_RH_SUSPENDED) usb_hcd_resume_root_hub(hcd); /* get per-port change detect bits */ diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index bba9850f32f0..5c78f9e71466 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -42,6 +42,7 @@ #include <plat/usb.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> +#include <linux/gpio.h> /* EHCI Register Set */ #define EHCI_INSNREG04 (0xA0) @@ -191,6 +192,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -237,6 +251,19 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) /* root ports should always stay powered */ ehci_port_power(omap_ehci, 1); + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value(pdata->reset_gpio_port[1], 1); + } + return 0; err_add_hcd: @@ -259,8 +286,9 @@ err_io: */ static int ehci_hcd_omap_remove(struct platform_device *pdev) { - struct device *dev = &pdev->dev; - struct usb_hcd *hcd = dev_get_drvdata(dev); + struct device *dev = &pdev->dev; + struct usb_hcd *hcd = dev_get_drvdata(dev); + struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -269,6 +297,13 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_free(pdata->reset_gpio_port[0]); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_free(pdata->reset_gpio_port[1]); + } return 0; } diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c index 73544bd440bd..86183366647f 100644 --- a/drivers/usb/host/ehci-tegra.c +++ b/drivers/usb/host/ehci-tegra.c @@ -731,7 +731,6 @@ static int tegra_ehci_probe(struct platform_device *pdev) err = -ENODEV; goto fail; } - set_irq_flags(irq, IRQF_VALID); #ifdef CONFIG_USB_OTG_UTILS if (pdata->operating_mode == TEGRA_USB_OTG) { diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 09f597ad6e00..13ebeca8e73e 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -94,7 +94,7 @@ static void at91_stop_hc(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); +static void __devexit usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); /* configure so an HC device and id are always provided */ /* always called with process context; sleeping is OK */ @@ -108,7 +108,7 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *); * then invokes the start() method for the HCD associated with it * through the hotplug entry's driver_data. */ -static int usb_hcd_at91_probe(const struct hc_driver *driver, +static int __devinit usb_hcd_at91_probe(const struct hc_driver *driver, struct platform_device *pdev) { int retval; @@ -203,7 +203,7 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver, * context, "rmmod" or something similar. * */ -static void usb_hcd_at91_remove(struct usb_hcd *hcd, +static void __devexit usb_hcd_at91_remove(struct usb_hcd *hcd, struct platform_device *pdev) { usb_remove_hcd(hcd); @@ -545,7 +545,7 @@ static int __devinit ohci_at91_of_init(struct platform_device *pdev) /*-------------------------------------------------------------------------*/ -static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) +static int __devinit ohci_hcd_at91_drv_probe(struct platform_device *pdev) { struct at91_usbh_data *pdata; int i; @@ -620,7 +620,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev) return usb_hcd_at91_probe(&ohci_at91_hc_driver, pdev); } -static int ohci_hcd_at91_drv_remove(struct platform_device *pdev) +static int __devexit ohci_hcd_at91_drv_remove(struct platform_device *pdev) { struct at91_usbh_data *pdata = pdev->dev.platform_data; int i; @@ -696,7 +696,7 @@ MODULE_ALIAS("platform:at91_ohci"); static struct platform_driver ohci_hcd_at91_driver = { .probe = ohci_hcd_at91_drv_probe, - .remove = ohci_hcd_at91_drv_remove, + .remove = __devexit_p(ohci_hcd_at91_drv_remove), .shutdown = usb_hcd_platform_shutdown, .suspend = ohci_hcd_at91_drv_suspend, .resume = ohci_hcd_at91_drv_resume, diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c index 959145baf3cf..9dcb68f04f03 100644 --- a/drivers/usb/misc/usbtest.c +++ b/drivers/usb/misc/usbtest.c @@ -423,7 +423,7 @@ alloc_sglist(int nents, int max, int vary) unsigned i; unsigned size = max; - sg = kmalloc(nents * sizeof *sg, GFP_KERNEL); + sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL); if (!sg) return NULL; sg_init_table(sg, nents); @@ -904,6 +904,9 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param) struct ctrl_ctx context; int i; + if (param->sglen == 0 || param->iterations > UINT_MAX / param->sglen) + return -EOPNOTSUPP; + spin_lock_init(&context.lock); context.dev = dev; init_completion(&context.complete); @@ -1981,8 +1984,6 @@ usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf) /* queued control messaging */ case 10: - if (param->sglen == 0) - break; retval = 0; dev_info(&intf->dev, "TEST 10: queue %d control calls, %d times\n", @@ -2276,6 +2277,8 @@ usbtest_probe(struct usb_interface *intf, const struct usb_device_id *id) if (status < 0) { WARNING(dev, "couldn't get endpoints, %d\n", status); + kfree(dev->buf); + kfree(dev); return status; } /* may find bulk or ISO pipes */ diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c index 897edda42270..70201462e19c 100644 --- a/drivers/usb/misc/yurex.c +++ b/drivers/usb/misc/yurex.c @@ -99,9 +99,7 @@ static void yurex_delete(struct kref *kref) usb_put_dev(dev->udev); if (dev->cntl_urb) { usb_kill_urb(dev->cntl_urb); - if (dev->cntl_req) - usb_free_coherent(dev->udev, YUREX_BUF_SIZE, - dev->cntl_req, dev->cntl_urb->setup_dma); + kfree(dev->cntl_req); if (dev->cntl_buffer) usb_free_coherent(dev->udev, YUREX_BUF_SIZE, dev->cntl_buffer, dev->cntl_urb->transfer_dma); @@ -234,9 +232,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ } /* allocate buffer for control req */ - dev->cntl_req = usb_alloc_coherent(dev->udev, YUREX_BUF_SIZE, - GFP_KERNEL, - &dev->cntl_urb->setup_dma); + dev->cntl_req = kmalloc(YUREX_BUF_SIZE, GFP_KERNEL); if (!dev->cntl_req) { err("Could not allocate cntl_req"); goto error; @@ -286,7 +282,7 @@ static int yurex_probe(struct usb_interface *interface, const struct usb_device_ usb_rcvintpipe(dev->udev, dev->int_in_endpointAddr), dev->int_buffer, YUREX_BUF_SIZE, yurex_interrupt, dev, 1); - dev->cntl_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; + dev->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; if (usb_submit_urb(dev->urb, GFP_KERNEL)) { retval = -EIO; err("Could not submitting URB"); diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index 0f8b82918a40..66aaccf04490 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -137,6 +137,9 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) int i = 0; u8 r; u8 power; + int ret; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -154,15 +157,22 @@ static int musb_ulpi_read(struct usb_phy *phy, u32 offset) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return musb_readb(addr, MUSB_ULPI_REG_DATA); + ret = musb_readb(addr, MUSB_ULPI_REG_DATA); + +out: + pm_runtime_put(phy->io_dev); + + return ret; } static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) @@ -171,6 +181,9 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) int i = 0; u8 r = 0; u8 power; + int ret = 0; + + pm_runtime_get_sync(phy->io_dev); /* Make sure the transceiver is not in low power mode */ power = musb_readb(addr, MUSB_POWER); @@ -184,15 +197,20 @@ static int musb_ulpi_write(struct usb_phy *phy, u32 offset, u32 data) while (!(musb_readb(addr, MUSB_ULPI_REG_CONTROL) & MUSB_ULPI_REG_CMPLT)) { i++; - if (i == 10000) - return -ETIMEDOUT; + if (i == 10000) { + ret = -ETIMEDOUT; + goto out; + } } r = musb_readb(addr, MUSB_ULPI_REG_CONTROL); r &= ~MUSB_ULPI_REG_CMPLT; musb_writeb(addr, MUSB_ULPI_REG_CONTROL, r); - return 0; +out: + pm_runtime_put(phy->io_dev); + + return ret; } #else #define musb_ulpi_read NULL @@ -1904,14 +1922,17 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) if (!musb->isr) { status = -ENODEV; - goto fail3; + goto fail2; } if (!musb->xceiv->io_ops) { + musb->xceiv->io_dev = musb->controller; musb->xceiv->io_priv = musb->mregs; musb->xceiv->io_ops = &musb_ulpi_access; } + pm_runtime_get_sync(musb->controller); + #ifndef CONFIG_MUSB_PIO_ONLY if (use_dma && dev->dma_mask) { struct dma_controller *c; @@ -2023,6 +2044,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl) goto fail5; #endif + pm_runtime_put(musb->controller); + dev_info(dev, "USB %s mode controller at %p using %s, IRQ %d\n", ({char *s; switch (musb->board_mode) { @@ -2047,6 +2070,9 @@ fail4: musb_gadget_cleanup(musb); fail3: + pm_runtime_put_sync(musb->controller); + +fail2: if (musb->irq_wake) device_init_wakeup(dev, 0); musb_platform_exit(musb); diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 79cb0af779fa..ef8d744800ac 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -2098,7 +2098,7 @@ static int musb_cleanup_urb(struct urb *urb, struct musb_qh *qh) } /* turn off DMA requests, discard state, stop polling ... */ - if (is_in) { + if (ep->epnum && is_in) { /* giveback saves bulk toggle */ csr = musb_h_flush_rxfifo(ep, 0); diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index 2ae0bb309994..c7785e81254c 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -282,7 +282,8 @@ static void musb_otg_notifier_work(struct work_struct *data_notifier_work) static int omap2430_musb_init(struct musb *musb) { - u32 l, status = 0; + u32 l; + int status = 0; struct device *dev = musb->controller; struct musb_hdrc_platform_data *plat = dev->platform_data; struct omap_musb_board_data *data = plat->board_data; @@ -301,7 +302,7 @@ static int omap2430_musb_init(struct musb *musb) status = pm_runtime_get_sync(dev); if (status < 0) { - dev_err(dev, "pm_runtime_get_sync FAILED"); + dev_err(dev, "pm_runtime_get_sync FAILED %d\n", status); goto err1; } @@ -333,6 +334,7 @@ static int omap2430_musb_init(struct musb *musb) setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb); + pm_runtime_put_noidle(musb->controller); return 0; err1: @@ -452,14 +454,14 @@ static int __devinit omap2430_probe(struct platform_device *pdev) goto err2; } + pm_runtime_enable(&pdev->dev); + ret = platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); goto err2; } - pm_runtime_enable(&pdev->dev); - return 0; err2: @@ -478,7 +480,6 @@ static int __devexit omap2430_remove(struct platform_device *pdev) platform_device_del(glue->musb); platform_device_put(glue->musb); - pm_runtime_put(&pdev->dev); kfree(glue); return 0; @@ -491,11 +492,13 @@ static int omap2430_runtime_suspend(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - musb->context.otg_interfsel = musb_readl(musb->mregs, - OTG_INTERFSEL); + if (musb) { + musb->context.otg_interfsel = musb_readl(musb->mregs, + OTG_INTERFSEL); - omap2430_low_level_exit(musb); - usb_phy_set_suspend(musb->xceiv, 1); + omap2430_low_level_exit(musb); + usb_phy_set_suspend(musb->xceiv, 1); + } return 0; } @@ -505,11 +508,13 @@ static int omap2430_runtime_resume(struct device *dev) struct omap2430_glue *glue = dev_get_drvdata(dev); struct musb *musb = glue_to_musb(glue); - omap2430_low_level_init(musb); - musb_writel(musb->mregs, OTG_INTERFSEL, - musb->context.otg_interfsel); + if (musb) { + omap2430_low_level_init(musb); + musb_writel(musb->mregs, OTG_INTERFSEL, + musb->context.otg_interfsel); - usb_phy_set_suspend(musb->xceiv, 0); + usb_phy_set_suspend(musb->xceiv, 0); + } return 0; } diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 0310e2df59f5..ec30f95ef399 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -287,7 +287,8 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request, /* Issue the request, attempting to read 'size' bytes */ result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), request, REQTYPE_DEVICE_TO_HOST, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_GET_TIMEOUT); /* Convert data into an array of integers */ for (i = 0; i < length; i++) @@ -340,12 +341,14 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request, result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, 0x0000, - port_priv->bInterfaceNumber, buf, size, 300); + port_priv->bInterfaceNumber, buf, size, + USB_CTRL_SET_TIMEOUT); } else { result = usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0), request, REQTYPE_HOST_TO_DEVICE, data[0], - port_priv->bInterfaceNumber, NULL, 0, 300); + port_priv->bInterfaceNumber, NULL, 0, + USB_CTRL_SET_TIMEOUT); } kfree(buf); diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c index fdd5aa2c8d82..8c8bf806f6fa 100644 --- a/drivers/usb/serial/sierra.c +++ b/drivers/usb/serial/sierra.c @@ -221,7 +221,7 @@ static const struct sierra_iface_info typeB_interface_list = { }; /* 'blacklist' of interfaces not served by this driver */ -static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11 }; +static const u8 direct_ip_non_serial_ifaces[] = { 7, 8, 9, 10, 11, 19, 20 }; static const struct sierra_iface_info direct_ip_interface_blacklist = { .infolen = ARRAY_SIZE(direct_ip_non_serial_ifaces), .ifaceinfo = direct_ip_non_serial_ifaces, @@ -289,7 +289,6 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1199, 0x6856) }, /* Sierra Wireless AirCard 881 U */ { USB_DEVICE(0x1199, 0x6859) }, /* Sierra Wireless AirCard 885 E */ { USB_DEVICE(0x1199, 0x685A) }, /* Sierra Wireless AirCard 885 E */ - { USB_DEVICE(0x1199, 0x68A2) }, /* Sierra Wireless MC7710 */ /* Sierra Wireless C885 */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6880, 0xFF, 0xFF, 0xFF)}, /* Sierra Wireless C888, Air Card 501, USB 303, USB 304 */ @@ -299,6 +298,9 @@ static const struct usb_device_id id_table[] = { /* Sierra Wireless HSPA Non-Composite Device */ { USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x6892, 0xFF, 0xFF, 0xFF)}, { USB_DEVICE(0x1199, 0x6893) }, /* Sierra Wireless Device */ + { USB_DEVICE(0x1199, 0x68A2), /* Sierra Wireless MC77xx in QMI mode */ + .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist + }, { USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */ .driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist }, diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c index 66797e9c5010..810c90ae2c55 100644 --- a/drivers/uwb/hwa-rc.c +++ b/drivers/uwb/hwa-rc.c @@ -645,7 +645,8 @@ void hwarc_neep_cb(struct urb *urb) dev_err(dev, "NEEP: URB error %d\n", urb->status); } result = usb_submit_urb(urb, GFP_ATOMIC); - if (result < 0) { + if (result < 0 && result != -ENODEV && result != -EPERM) { + /* ignoring unrecoverable errors */ dev_err(dev, "NEEP: Can't resubmit URB (%d) resetting device\n", result); goto error; diff --git a/drivers/uwb/neh.c b/drivers/uwb/neh.c index a269937be1b8..8cb71bb333c2 100644 --- a/drivers/uwb/neh.c +++ b/drivers/uwb/neh.c @@ -107,6 +107,7 @@ struct uwb_rc_neh { u8 evt_type; __le16 evt; u8 context; + u8 completed; uwb_rc_cmd_cb_f cb; void *arg; @@ -409,6 +410,7 @@ static void uwb_rc_neh_grok_event(struct uwb_rc *rc, struct uwb_rceb *rceb, size struct device *dev = &rc->uwb_dev.dev; struct uwb_rc_neh *neh; struct uwb_rceb *notif; + unsigned long flags; if (rceb->bEventContext == 0) { notif = kmalloc(size, GFP_ATOMIC); @@ -422,7 +424,11 @@ static void uwb_rc_neh_grok_event(struct uwb_rc *rc, struct uwb_rceb *rceb, size } else { neh = uwb_rc_neh_lookup(rc, rceb); if (neh) { - del_timer_sync(&neh->timer); + spin_lock_irqsave(&rc->neh_lock, flags); + /* to guard against a timeout */ + neh->completed = 1; + del_timer(&neh->timer); + spin_unlock_irqrestore(&rc->neh_lock, flags); uwb_rc_neh_cb(neh, rceb, size); } else dev_warn(dev, "event 0x%02x/%04x/%02x (%zu bytes): nobody cared\n", @@ -568,6 +574,10 @@ static void uwb_rc_neh_timer(unsigned long arg) unsigned long flags; spin_lock_irqsave(&rc->neh_lock, flags); + if (neh->completed) { + spin_unlock_irqrestore(&rc->neh_lock, flags); + return; + } if (neh->context) __uwb_rc_neh_rm(rc, neh); else diff --git a/drivers/vhost/test.c b/drivers/vhost/test.c index fc9a1d75281f..3de00d9fae2e 100644 --- a/drivers/vhost/test.c +++ b/drivers/vhost/test.c @@ -155,7 +155,7 @@ static int vhost_test_release(struct inode *inode, struct file *f) vhost_test_stop(n, &private); vhost_test_flush(n); - vhost_dev_cleanup(&n->dev); + vhost_dev_cleanup(&n->dev, false); /* We do an extra flush before freeing memory, * since jobs can re-queue themselves. */ vhost_test_flush(n); diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 05f0a80818a2..c2d05a8279fd 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -28,6 +28,13 @@ #include <linux/slab.h> #include <linux/module.h> +/* + * Balloon device works in 4K page units. So each page is pointed to by + * multiple balloon pages. All memory counters in this driver are in balloon + * page units. + */ +#define VIRTIO_BALLOON_PAGES_PER_PAGE (PAGE_SIZE >> VIRTIO_BALLOON_PFN_SHIFT) + struct virtio_balloon { struct virtio_device *vdev; @@ -42,8 +49,13 @@ struct virtio_balloon /* Waiting for host to ack the pages we released. */ struct completion acked; - /* The pages we've told the Host we're not using. */ + /* Number of balloon pages we've told the Host we're not using. */ unsigned int num_pages; + /* + * The pages we've told the Host we're not using. + * Each page on this list adds VIRTIO_BALLOON_PAGES_PER_PAGE + * to num_pages above. + */ struct list_head pages; /* The array of pfns we tell the Host about. */ @@ -66,7 +78,13 @@ static u32 page_to_balloon_pfn(struct page *page) BUILD_BUG_ON(PAGE_SHIFT < VIRTIO_BALLOON_PFN_SHIFT); /* Convert pfn from Linux page size to balloon page size. */ - return pfn >> (PAGE_SHIFT - VIRTIO_BALLOON_PFN_SHIFT); + return pfn * VIRTIO_BALLOON_PAGES_PER_PAGE; +} + +static struct page *balloon_pfn_to_page(u32 pfn) +{ + BUG_ON(pfn % VIRTIO_BALLOON_PAGES_PER_PAGE); + return pfn_to_page(pfn / VIRTIO_BALLOON_PAGES_PER_PAGE); } static void balloon_ack(struct virtqueue *vq) @@ -96,12 +114,23 @@ static void tell_host(struct virtio_balloon *vb, struct virtqueue *vq) wait_for_completion(&vb->acked); } +static void set_page_pfns(u32 pfns[], struct page *page) +{ + unsigned int i; + + /* Set balloon pfns pointing at this page. + * Note that the first pfn points at start of the page. */ + for (i = 0; i < VIRTIO_BALLOON_PAGES_PER_PAGE; i++) + pfns[i] = page_to_balloon_pfn(page) + i; +} + static void fill_balloon(struct virtio_balloon *vb, size_t num) { /* We can only do one array worth at a time. */ num = min(num, ARRAY_SIZE(vb->pfns)); - for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) { + for (vb->num_pfns = 0; vb->num_pfns < num; + vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { struct page *page = alloc_page(GFP_HIGHUSER | __GFP_NORETRY | __GFP_NOMEMALLOC | __GFP_NOWARN); if (!page) { @@ -113,9 +142,9 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) msleep(200); break; } - vb->pfns[vb->num_pfns] = page_to_balloon_pfn(page); + set_page_pfns(vb->pfns + vb->num_pfns, page); + vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE; totalram_pages--; - vb->num_pages++; list_add(&page->lru, &vb->pages); } @@ -130,8 +159,9 @@ static void release_pages_by_pfn(const u32 pfns[], unsigned int num) { unsigned int i; - for (i = 0; i < num; i++) { - __free_page(pfn_to_page(pfns[i])); + /* Find pfns pointing at start of each page, get pages and free them. */ + for (i = 0; i < num; i += VIRTIO_BALLOON_PAGES_PER_PAGE) { + __free_page(balloon_pfn_to_page(pfns[i])); totalram_pages++; } } @@ -143,11 +173,12 @@ static void leak_balloon(struct virtio_balloon *vb, size_t num) /* We can only do one array worth at a time. */ num = min(num, ARRAY_SIZE(vb->pfns)); - for (vb->num_pfns = 0; vb->num_pfns < num; vb->num_pfns++) { + for (vb->num_pfns = 0; vb->num_pfns < num; + vb->num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) { page = list_first_entry(&vb->pages, struct page, lru); list_del(&page->lru); - vb->pfns[vb->num_pfns] = page_to_balloon_pfn(page); - vb->num_pages--; + set_page_pfns(vb->pfns + vb->num_pfns, page); + vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE; } /* @@ -234,11 +265,14 @@ static void virtballoon_changed(struct virtio_device *vdev) static inline s64 towards_target(struct virtio_balloon *vb) { - u32 v; + __le32 v; + s64 target; + vb->vdev->config->get(vb->vdev, offsetof(struct virtio_balloon_config, num_pages), &v, sizeof(v)); - return (s64)v - vb->num_pages; + target = le32_to_cpu(v); + return target - vb->num_pages; } static void update_balloon_size(struct virtio_balloon *vb) diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index 99d8151c824a..1ffd03bf8e10 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -722,7 +722,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) vma->vm_flags |= VM_RESERVED|VM_DONTEXPAND; if (use_ptemod) - vma->vm_flags |= VM_DONTCOPY|VM_PFNMAP; + vma->vm_flags |= VM_DONTCOPY; vma->vm_private_data = map; diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index b4d4eac761db..f100ce20b16b 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -1029,6 +1029,7 @@ int gnttab_init(void) int i; unsigned int max_nr_glist_frames, nr_glist_frames; unsigned int nr_init_grefs; + int ret; nr_grant_frames = 1; boot_max_nr_grant_frames = __max_nr_grant_frames(); @@ -1047,12 +1048,16 @@ int gnttab_init(void) nr_glist_frames = (nr_grant_frames * GREFS_PER_GRANT_FRAME + RPP - 1) / RPP; for (i = 0; i < nr_glist_frames; i++) { gnttab_list[i] = (grant_ref_t *)__get_free_page(GFP_KERNEL); - if (gnttab_list[i] == NULL) + if (gnttab_list[i] == NULL) { + ret = -ENOMEM; goto ini_nomem; + } } - if (gnttab_resume() < 0) - return -ENODEV; + if (gnttab_resume() < 0) { + ret = -ENODEV; + goto ini_nomem; + } nr_init_grefs = nr_grant_frames * GREFS_PER_GRANT_FRAME; @@ -1070,7 +1075,7 @@ int gnttab_init(void) for (i--; i >= 0; i--) free_page((unsigned long)gnttab_list[i]); kfree(gnttab_list); - return -ENOMEM; + return ret; } EXPORT_SYMBOL_GPL(gnttab_init); diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 9e14ae6cd49c..412b96cc5305 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -132,6 +132,7 @@ static void do_suspend(void) err = dpm_suspend_end(PMSG_FREEZE); if (err) { printk(KERN_ERR "dpm_suspend_end failed: %d\n", err); + si.cancelled = 0; goto out_resume; } diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c index f20c5f178b40..a31b54d48839 100644 --- a/drivers/xen/xenbus/xenbus_probe_frontend.c +++ b/drivers/xen/xenbus/xenbus_probe_frontend.c @@ -135,7 +135,7 @@ static int read_backend_details(struct xenbus_device *xendev) return xenbus_read_otherend_details(xendev, "backend-id", "backend"); } -static int is_device_connecting(struct device *dev, void *data) +static int is_device_connecting(struct device *dev, void *data, bool ignore_nonessential) { struct xenbus_device *xendev = to_xenbus_device(dev); struct device_driver *drv = data; @@ -152,16 +152,41 @@ static int is_device_connecting(struct device *dev, void *data) if (drv && (dev->driver != drv)) return 0; + if (ignore_nonessential) { + /* With older QEMU, for PVonHVM guests the guest config files + * could contain: vfb = [ 'vnc=1, vnclisten=0.0.0.0'] + * which is nonsensical as there is no PV FB (there can be + * a PVKB) running as HVM guest. */ + + if ((strncmp(xendev->nodename, "device/vkbd", 11) == 0)) + return 0; + + if ((strncmp(xendev->nodename, "device/vfb", 10) == 0)) + return 0; + } xendrv = to_xenbus_driver(dev->driver); return (xendev->state < XenbusStateConnected || (xendev->state == XenbusStateConnected && xendrv->is_ready && !xendrv->is_ready(xendev))); } +static int essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, true /* ignore PV[KBB+FB] */); +} +static int non_essential_device_connecting(struct device *dev, void *data) +{ + return is_device_connecting(dev, data, false); +} -static int exists_connecting_device(struct device_driver *drv) +static int exists_essential_connecting_device(struct device_driver *drv) { return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, - is_device_connecting); + essential_device_connecting); +} +static int exists_non_essential_connecting_device(struct device_driver *drv) +{ + return bus_for_each_dev(&xenbus_frontend.bus, NULL, drv, + non_essential_device_connecting); } static int print_device_status(struct device *dev, void *data) @@ -192,6 +217,23 @@ static int print_device_status(struct device *dev, void *data) /* We only wait for device setup after most initcalls have run. */ static int ready_to_wait_for_devices; +static bool wait_loop(unsigned long start, unsigned int max_delay, + unsigned int *seconds_waited) +{ + if (time_after(jiffies, start + (*seconds_waited+5)*HZ)) { + if (!*seconds_waited) + printk(KERN_WARNING "XENBUS: Waiting for " + "devices to initialise: "); + *seconds_waited += 5; + printk("%us...", max_delay - *seconds_waited); + if (*seconds_waited == max_delay) + return true; + } + + schedule_timeout_interruptible(HZ/10); + + return false; +} /* * On a 5-minute timeout, wait for all devices currently configured. We need * to do this to guarantee that the filesystems and / or network devices @@ -215,19 +257,14 @@ static void wait_for_devices(struct xenbus_driver *xendrv) if (!ready_to_wait_for_devices || !xen_domain()) return; - while (exists_connecting_device(drv)) { - if (time_after(jiffies, start + (seconds_waited+5)*HZ)) { - if (!seconds_waited) - printk(KERN_WARNING "XENBUS: Waiting for " - "devices to initialise: "); - seconds_waited += 5; - printk("%us...", 300 - seconds_waited); - if (seconds_waited == 300) - break; - } - - schedule_timeout_interruptible(HZ/10); - } + while (exists_non_essential_connecting_device(drv)) + if (wait_loop(start, 30, &seconds_waited)) + break; + + /* Skips PVKB and PVFB check.*/ + while (exists_essential_connecting_device(drv)) + if (wait_loop(start, 270, &seconds_waited)) + break; if (seconds_waited) printk("\n"); @@ -93,9 +93,8 @@ static void aio_free_ring(struct kioctx *ctx) put_page(info->ring_pages[i]); if (info->mmap_size) { - down_write(&ctx->mm->mmap_sem); - do_munmap(ctx->mm, info->mmap_base, info->mmap_size); - up_write(&ctx->mm->mmap_sem); + BUG_ON(ctx->mm != current->mm); + vm_munmap(info->mmap_base, info->mmap_size); } if (info->ring_pages && info->ring_pages != info->internal_pages) @@ -389,6 +388,17 @@ void exit_aio(struct mm_struct *mm) "exit_aio:ioctx still alive: %d %d %d\n", atomic_read(&ctx->users), ctx->dead, ctx->reqs_active); + /* + * We don't need to bother with munmap() here - + * exit_mmap(mm) is coming and it'll unmap everything. + * Since aio_free_ring() uses non-zero ->mmap_size + * as indicator that it needs to unmap the area, + * just set it to 0; aio_free_ring() is the only + * place that uses ->mmap_size, so it's safe. + * That way we get all munmap done to current->mm - + * all other callers have ctx->mm == current->mm. + */ + ctx->ring_info.mmap_size = 0; put_ioctx(ctx); } } diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index 2eb12f13593d..d146e181d10d 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -50,9 +50,7 @@ static int set_brk(unsigned long start, unsigned long end) end = PAGE_ALIGN(end); if (end > start) { unsigned long addr; - down_write(¤t->mm->mmap_sem); - addr = do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + addr = vm_brk(start, end - start); if (BAD_ADDR(addr)) return addr; } @@ -280,9 +278,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) pos = 32; map_size = ex.a_text+ex.a_data; #endif - down_write(¤t->mm->mmap_sem); - error = do_brk(text_addr & PAGE_MASK, map_size); - up_write(¤t->mm->mmap_sem); + error = vm_brk(text_addr & PAGE_MASK, map_size); if (error != (text_addr & PAGE_MASK)) { send_sig(SIGKILL, current, 0); return error; @@ -313,9 +309,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) if (!bprm->file->f_op->mmap||((fd_offset & ~PAGE_MASK) != 0)) { loff_t pos = fd_offset; - down_write(¤t->mm->mmap_sem); - do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); - up_write(¤t->mm->mmap_sem); + vm_brk(N_TXTADDR(ex), ex.a_text+ex.a_data); bprm->file->f_op->read(bprm->file, (char __user *)N_TXTADDR(ex), ex.a_text+ex.a_data, &pos); @@ -325,24 +319,20 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) goto beyond_if; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, + error = vm_mmap(bprm->file, N_TXTADDR(ex), ex.a_text, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, fd_offset); - up_write(¤t->mm->mmap_sem); if (error != N_TXTADDR(ex)) { send_sig(SIGKILL, current, 0); return error; } - down_write(¤t->mm->mmap_sem); - error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data, + error = vm_mmap(bprm->file, N_DATADDR(ex), ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_EXECUTABLE, fd_offset + ex.a_text); - up_write(¤t->mm->mmap_sem); if (error != N_DATADDR(ex)) { send_sig(SIGKILL, current, 0); return error; @@ -412,9 +402,7 @@ static int load_aout_library(struct file *file) "N_TXTOFF is not page aligned. Please convert library: %s\n", file->f_path.dentry->d_name.name); } - down_write(¤t->mm->mmap_sem); - do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); - up_write(¤t->mm->mmap_sem); + vm_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss); file->f_op->read(file, (char __user *)start_addr, ex.a_text + ex.a_data, &pos); @@ -425,12 +413,10 @@ static int load_aout_library(struct file *file) goto out; } /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, start_addr, ex.a_text + ex.a_data, + error = vm_mmap(file, start_addr, ex.a_text + ex.a_data, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE, N_TXTOFF(ex)); - up_write(¤t->mm->mmap_sem); retval = error; if (error != start_addr) goto out; @@ -438,9 +424,7 @@ static int load_aout_library(struct file *file) len = PAGE_ALIGN(ex.a_text + ex.a_data); bss = ex.a_text + ex.a_data + ex.a_bss; if (bss > len) { - down_write(¤t->mm->mmap_sem); - error = do_brk(start_addr + len, bss - len); - up_write(¤t->mm->mmap_sem); + error = vm_brk(start_addr + len, bss - len); retval = error; if (error != start_addr + len) goto out; diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index 48ffb3dc610a..16f735417072 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -82,9 +82,7 @@ static int set_brk(unsigned long start, unsigned long end) end = ELF_PAGEALIGN(end); if (end > start) { unsigned long addr; - down_write(¤t->mm->mmap_sem); - addr = do_brk(start, end - start); - up_write(¤t->mm->mmap_sem); + addr = vm_brk(start, end - start); if (BAD_ADDR(addr)) return addr; } @@ -514,9 +512,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex, elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1); /* Map the last of the bss segment */ - down_write(¤t->mm->mmap_sem); - error = do_brk(elf_bss, last_bss - elf_bss); - up_write(¤t->mm->mmap_sem); + error = vm_brk(elf_bss, last_bss - elf_bss); if (BAD_ADDR(error)) goto out_close; } @@ -962,10 +958,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) and some applications "depend" upon this behavior. Since we do not have the power to recompile these, we emulate the SVr4 behavior. Sigh. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC, + error = vm_mmap(NULL, 0, PAGE_SIZE, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); } #ifdef ELF_PLAT_INIT @@ -1050,8 +1044,7 @@ static int load_elf_library(struct file *file) eppnt++; /* Now use mmap to map the library into memory. */ - down_write(¤t->mm->mmap_sem); - error = do_mmap(file, + error = vm_mmap(file, ELF_PAGESTART(eppnt->p_vaddr), (eppnt->p_filesz + ELF_PAGEOFFSET(eppnt->p_vaddr)), @@ -1059,7 +1052,6 @@ static int load_elf_library(struct file *file) MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE, (eppnt->p_offset - ELF_PAGEOFFSET(eppnt->p_vaddr))); - up_write(¤t->mm->mmap_sem); if (error != ELF_PAGESTART(eppnt->p_vaddr)) goto out_free_ph; @@ -1072,11 +1064,8 @@ static int load_elf_library(struct file *file) len = ELF_PAGESTART(eppnt->p_filesz + eppnt->p_vaddr + ELF_MIN_ALIGN - 1); bss = eppnt->p_memsz + eppnt->p_vaddr; - if (bss > len) { - down_write(¤t->mm->mmap_sem); - do_brk(len, bss - len); - up_write(¤t->mm->mmap_sem); - } + if (bss > len) + vm_brk(len, bss - len); error = 0; out_free_ph: diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 9bd5612a8224..d390a0fffc65 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -390,21 +390,17 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, (executable_stack == EXSTACK_DEFAULT && VM_STACK_FLAGS & VM_EXEC)) stack_prot |= PROT_EXEC; - down_write(¤t->mm->mmap_sem); - current->mm->start_brk = do_mmap(NULL, 0, stack_size, stack_prot, + current->mm->start_brk = vm_mmap(NULL, 0, stack_size, stack_prot, MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZED | MAP_GROWSDOWN, 0); if (IS_ERR_VALUE(current->mm->start_brk)) { - up_write(¤t->mm->mmap_sem); retval = current->mm->start_brk; current->mm->start_brk = 0; goto error_kill; } - up_write(¤t->mm->mmap_sem); - current->mm->brk = current->mm->start_brk; current->mm->context.end_brk = current->mm->start_brk; current->mm->context.end_brk += @@ -955,10 +951,8 @@ static int elf_fdpic_map_file_constdisp_on_uclinux( if (params->flags & ELF_FDPIC_FLAG_EXECUTABLE) mflags |= MAP_EXECUTABLE; - down_write(&mm->mmap_sem); - maddr = do_mmap(NULL, load_addr, top - base, + maddr = vm_mmap(NULL, load_addr, top - base, PROT_READ | PROT_WRITE | PROT_EXEC, mflags, 0); - up_write(&mm->mmap_sem); if (IS_ERR_VALUE(maddr)) return (int) maddr; @@ -1096,10 +1090,8 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, /* create the mapping */ disp = phdr->p_vaddr & ~PAGE_MASK; - down_write(&mm->mmap_sem); - maddr = do_mmap(file, maddr, phdr->p_memsz + disp, prot, flags, + maddr = vm_mmap(file, maddr, phdr->p_memsz + disp, prot, flags, phdr->p_offset - disp); - up_write(&mm->mmap_sem); kdebug("mmap[%d] <file> sz=%lx pr=%x fl=%x of=%lx --> %08lx", loop, phdr->p_memsz + disp, prot, flags, @@ -1143,10 +1135,8 @@ static int elf_fdpic_map_file_by_direct_mmap(struct elf_fdpic_params *params, unsigned long xmaddr; flags |= MAP_FIXED | MAP_ANONYMOUS; - down_write(&mm->mmap_sem); - xmaddr = do_mmap(NULL, xaddr, excess - excess1, + xmaddr = vm_mmap(NULL, xaddr, excess - excess1, prot, flags, 0); - up_write(&mm->mmap_sem); kdebug("mmap[%d] <anon>" " ad=%lx sz=%lx pr=%x fl=%x of=0 --> %08lx", diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index 024d20ee3ca3..6b2daf99fab8 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -542,10 +542,8 @@ static int load_flat_file(struct linux_binprm * bprm, */ DBG_FLT("BINFMT_FLAT: ROM mapping of file (we hope)\n"); - down_write(¤t->mm->mmap_sem); - textpos = do_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, + textpos = vm_mmap(bprm->file, 0, text_len, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_EXECUTABLE, 0); - up_write(¤t->mm->mmap_sem); if (!textpos || IS_ERR_VALUE(textpos)) { if (!textpos) textpos = (unsigned long) -ENOMEM; @@ -556,10 +554,8 @@ static int load_flat_file(struct linux_binprm * bprm, len = data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - down_write(¤t->mm->mmap_sem); - realdatastart = do_mmap(0, 0, len, + realdatastart = vm_mmap(0, 0, len, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (realdatastart == 0 || IS_ERR_VALUE(realdatastart)) { if (!realdatastart) @@ -603,10 +599,8 @@ static int load_flat_file(struct linux_binprm * bprm, len = text_len + data_len + extra + MAX_SHARED_LIBS * sizeof(unsigned long); len = PAGE_ALIGN(len); - down_write(¤t->mm->mmap_sem); - textpos = do_mmap(0, 0, len, + textpos = vm_mmap(0, 0, len, PROT_READ | PROT_EXEC | PROT_WRITE, MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (!textpos || IS_ERR_VALUE(textpos)) { if (!textpos) diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c index e4fc746629a7..4517aaff61b4 100644 --- a/fs/binfmt_som.c +++ b/fs/binfmt_som.c @@ -147,10 +147,8 @@ static int map_som_binary(struct file *file, code_size = SOM_PAGEALIGN(hpuxhdr->exec_tsize); current->mm->start_code = code_start; current->mm->end_code = code_start + code_size; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, code_start, code_size, prot, + retval = vm_mmap(file, code_start, code_size, prot, flags, SOM_PAGESTART(hpuxhdr->exec_tfile)); - up_write(¤t->mm->mmap_sem); if (retval < 0 && retval > -1024) goto out; @@ -158,20 +156,16 @@ static int map_som_binary(struct file *file, data_size = SOM_PAGEALIGN(hpuxhdr->exec_dsize); current->mm->start_data = data_start; current->mm->end_data = bss_start = data_start + data_size; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(file, data_start, data_size, + retval = vm_mmap(file, data_start, data_size, prot | PROT_WRITE, flags, SOM_PAGESTART(hpuxhdr->exec_dfile)); - up_write(¤t->mm->mmap_sem); if (retval < 0 && retval > -1024) goto out; som_brk = bss_start + SOM_PAGEALIGN(hpuxhdr->exec_bsize); current->mm->start_brk = current->mm->brk = som_brk; - down_write(¤t->mm->mmap_sem); - retval = do_mmap(NULL, bss_start, som_brk - bss_start, + retval = vm_mmap(NULL, bss_start, som_brk - bss_start, prot | PROT_WRITE, MAP_FIXED | MAP_PRIVATE, 0); - up_write(¤t->mm->mmap_sem); if (retval > 0 || retval < -1024) retval = 0; out: diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 5b8ef8eb3521..3f65a812e282 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2166,7 +2166,7 @@ BTRFS_SETGET_STACK_FUNCS(root_last_snapshot, struct btrfs_root_item, static inline bool btrfs_root_readonly(struct btrfs_root *root) { - return root->root_item.flags & BTRFS_ROOT_SUBVOL_RDONLY; + return (root->root_item.flags & cpu_to_le64(BTRFS_ROOT_SUBVOL_RDONLY)) != 0; } /* struct btrfs_root_backup */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d81e933a796b..f31dc9ac37b7 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -109,6 +109,8 @@ enum { /* Options which could be blank */ Opt_blank_pass, + Opt_blank_user, + Opt_blank_ip, Opt_err }; @@ -183,11 +185,15 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_wsize, "wsize=%s" }, { Opt_actimeo, "actimeo=%s" }, + { Opt_blank_user, "user=" }, + { Opt_blank_user, "username=" }, { Opt_user, "user=%s" }, { Opt_user, "username=%s" }, { Opt_blank_pass, "pass=" }, { Opt_pass, "pass=%s" }, { Opt_pass, "password=%s" }, + { Opt_blank_ip, "ip=" }, + { Opt_blank_ip, "addr=" }, { Opt_ip, "ip=%s" }, { Opt_ip, "addr=%s" }, { Opt_unc, "unc=%s" }, @@ -1117,7 +1123,7 @@ static int get_option_ul(substring_t args[], unsigned long *option) string = match_strdup(args); if (string == NULL) return -ENOMEM; - rc = kstrtoul(string, 10, option); + rc = kstrtoul(string, 0, option); kfree(string); return rc; @@ -1534,15 +1540,17 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, /* String Arguments */ + case Opt_blank_user: + /* null user, ie. anonymous authentication */ + vol->nullauth = 1; + vol->username = NULL; + break; case Opt_user: string = match_strdup(args); if (string == NULL) goto out_nomem; - if (!*string) { - /* null user, ie. anonymous authentication */ - vol->nullauth = 1; - } else if (strnlen(string, MAX_USERNAME_SIZE) > + if (strnlen(string, MAX_USERNAME_SIZE) > MAX_USERNAME_SIZE) { printk(KERN_WARNING "CIFS: username too long\n"); goto cifs_parse_mount_err; @@ -1611,14 +1619,15 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, } vol->password[j] = '\0'; break; + case Opt_blank_ip: + vol->UNCip = NULL; + break; case Opt_ip: string = match_strdup(args); if (string == NULL) goto out_nomem; - if (!*string) { - vol->UNCip = NULL; - } else if (strnlen(string, INET6_ADDRSTRLEN) > + if (strnlen(string, INET6_ADDRSTRLEN) > INET6_ADDRSTRLEN) { printk(KERN_WARNING "CIFS: ip address " "too long\n"); @@ -1636,12 +1645,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: invalid path to " - "network resource\n"); - goto cifs_parse_mount_err; - } - temp_len = strnlen(string, 300); if (temp_len == 300) { printk(KERN_WARNING "CIFS: UNC name too long\n"); @@ -1670,11 +1673,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: invalid domain" - " name\n"); - goto cifs_parse_mount_err; - } else if (strnlen(string, 256) == 256) { + if (strnlen(string, 256) == 256) { printk(KERN_WARNING "CIFS: domain name too" " long\n"); goto cifs_parse_mount_err; @@ -1693,11 +1692,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: srcaddr value not" - " specified\n"); - goto cifs_parse_mount_err; - } else if (!cifs_convert_address( + if (!cifs_convert_address( (struct sockaddr *)&vol->srcaddr, string, strlen(string))) { printk(KERN_WARNING "CIFS: Could not parse" @@ -1710,11 +1705,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid path" - " prefix\n"); - goto cifs_parse_mount_err; - } temp_len = strnlen(string, 1024); if (string[0] != '/') temp_len++; /* missing leading slash */ @@ -1742,11 +1732,7 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid iocharset" - " specified\n"); - goto cifs_parse_mount_err; - } else if (strnlen(string, 1024) >= 65) { + if (strnlen(string, 1024) >= 65) { printk(KERN_WARNING "CIFS: iocharset name " "too long.\n"); goto cifs_parse_mount_err; @@ -1771,11 +1757,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: No socket option" - " specified\n"); - goto cifs_parse_mount_err; - } if (strnicmp(string, "TCP_NODELAY", 11) == 0) vol->sockopt_tcp_nodelay = 1; break; @@ -1784,12 +1765,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Invalid (empty)" - " netbiosname\n"); - break; - } - memset(vol->source_rfc1001_name, 0x20, RFC1001_NAME_LEN); /* @@ -1817,11 +1792,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: Empty server" - " netbiosname specified\n"); - break; - } /* last byte, type, is 0x20 for servr type */ memset(vol->target_rfc1001_name, 0x20, RFC1001_NAME_LEN_WITH_NULL); @@ -1848,12 +1818,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - cERROR(1, "no protocol version specified" - " after vers= mount option"); - goto cifs_parse_mount_err; - } - if (strnicmp(string, "cifs", 4) == 0 || strnicmp(string, "1", 1) == 0) { /* This is the default */ @@ -1868,12 +1832,6 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; - if (!*string) { - printk(KERN_WARNING "CIFS: no security flavor" - " specified\n"); - break; - } - if (cifs_parse_security_flavors(string, vol) != 0) goto cifs_parse_mount_err; break; diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index ab2594a30f86..0e01e90add8b 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1203,9 +1203,6 @@ struct ext4_sb_info { unsigned long s_ext_blocks; unsigned long s_ext_extents; #endif - /* ext4 extent cache stats */ - unsigned long extent_cache_hits; - unsigned long extent_cache_misses; /* for buddy allocator */ struct ext4_group_info ***s_group_info; diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 1421938e6792..abcdeab67f52 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -2066,10 +2066,6 @@ static int ext4_ext_check_cache(struct inode *inode, ext4_lblk_t block, ret = 1; } errout: - if (!ret) - sbi->extent_cache_misses++; - else - sbi->extent_cache_hits++; trace_ext4_ext_in_cache(inode, block, ret); spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); return ret; @@ -2882,7 +2878,7 @@ static int ext4_split_extent_at(handle_t *handle, if (err) goto fix_extent_len; /* update the extent length and mark as initialized */ - ex->ee_len = cpu_to_le32(ee_len); + ex->ee_len = cpu_to_le16(ee_len); ext4_ext_try_to_merge(inode, path, ex); err = ext4_ext_dirty(handle, inode, path + depth); goto out; diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ceebaf853beb..6da193564e43 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1305,20 +1305,20 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) ext4_msg(sb, KERN_ERR, "Cannot change journaled " "quota options when quota turned on"); - return 0; + return -1; } qname = match_strdup(args); if (!qname) { ext4_msg(sb, KERN_ERR, "Not enough memory for storing quotafile name"); - return 0; + return -1; } if (sbi->s_qf_names[qtype] && strcmp(sbi->s_qf_names[qtype], qname)) { ext4_msg(sb, KERN_ERR, "%s quota file already specified", QTYPE2NAME(qtype)); kfree(qname); - return 0; + return -1; } sbi->s_qf_names[qtype] = qname; if (strchr(sbi->s_qf_names[qtype], '/')) { @@ -1326,7 +1326,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) "quotafile must be on filesystem root"); kfree(sbi->s_qf_names[qtype]); sbi->s_qf_names[qtype] = NULL; - return 0; + return -1; } set_opt(sb, QUOTA); return 1; @@ -1341,7 +1341,7 @@ static int clear_qf_name(struct super_block *sb, int qtype) sbi->s_qf_names[qtype]) { ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options" " when quota turned on"); - return 0; + return -1; } /* * The space will be released later when all options are confirmed @@ -1450,6 +1450,16 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, const struct mount_opts *m; int arg = 0; +#ifdef CONFIG_QUOTA + if (token == Opt_usrjquota) + return set_qf_name(sb, USRQUOTA, &args[0]); + else if (token == Opt_grpjquota) + return set_qf_name(sb, GRPQUOTA, &args[0]); + else if (token == Opt_offusrjquota) + return clear_qf_name(sb, USRQUOTA); + else if (token == Opt_offgrpjquota) + return clear_qf_name(sb, GRPQUOTA); +#endif if (args->from && match_int(args, &arg)) return -1; switch (token) { @@ -1549,18 +1559,6 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, sbi->s_mount_opt |= m->mount_opt; } #ifdef CONFIG_QUOTA - } else if (token == Opt_usrjquota) { - if (!set_qf_name(sb, USRQUOTA, &args[0])) - return -1; - } else if (token == Opt_grpjquota) { - if (!set_qf_name(sb, GRPQUOTA, &args[0])) - return -1; - } else if (token == Opt_offusrjquota) { - if (!clear_qf_name(sb, USRQUOTA)) - return -1; - } else if (token == Opt_offgrpjquota) { - if (!clear_qf_name(sb, GRPQUOTA)) - return -1; } else if (m->flags & MOPT_QFMT) { if (sb_any_quota_loaded(sb) && sbi->s_jquota_fmt != m->mount_opt) { @@ -2366,18 +2364,6 @@ static ssize_t lifetime_write_kbytes_show(struct ext4_attr *a, EXT4_SB(sb)->s_sectors_written_start) >> 1))); } -static ssize_t extent_cache_hits_show(struct ext4_attr *a, - struct ext4_sb_info *sbi, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_hits); -} - -static ssize_t extent_cache_misses_show(struct ext4_attr *a, - struct ext4_sb_info *sbi, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%lu\n", sbi->extent_cache_misses); -} - static ssize_t inode_readahead_blks_store(struct ext4_attr *a, struct ext4_sb_info *sbi, const char *buf, size_t count) @@ -2435,8 +2421,6 @@ static struct ext4_attr ext4_attr_##name = __ATTR(name, mode, show, store) EXT4_RO_ATTR(delayed_allocation_blocks); EXT4_RO_ATTR(session_write_kbytes); EXT4_RO_ATTR(lifetime_write_kbytes); -EXT4_RO_ATTR(extent_cache_hits); -EXT4_RO_ATTR(extent_cache_misses); EXT4_ATTR_OFFSET(inode_readahead_blks, 0644, sbi_ui_show, inode_readahead_blks_store, s_inode_readahead_blks); EXT4_RW_ATTR_SBI_UI(inode_goal, s_inode_goal); @@ -2452,8 +2436,6 @@ static struct attribute *ext4_attrs[] = { ATTR_LIST(delayed_allocation_blocks), ATTR_LIST(session_write_kbytes), ATTR_LIST(lifetime_write_kbytes), - ATTR_LIST(extent_cache_hits), - ATTR_LIST(extent_cache_misses), ATTR_LIST(inode_readahead_blks), ATTR_LIST(inode_goal), ATTR_LIST(mb_stats), diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 206632887bb4..df5ac048dc74 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -387,9 +387,6 @@ static int fuse_create_open(struct inode *dir, struct dentry *entry, if (fc->no_create) return -ENOSYS; - if (flags & O_DIRECT) - return -EINVAL; - forget = fuse_alloc_forget(); if (!forget) return -ENOMEM; @@ -644,13 +641,12 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry) fuse_put_request(fc, req); if (!err) { struct inode *inode = entry->d_inode; + struct fuse_inode *fi = get_fuse_inode(inode); - /* - * Set nlink to zero so the inode can be cleared, if the inode - * does have more links this will be discovered at the next - * lookup/getattr. - */ - clear_nlink(inode); + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + drop_nlink(inode); + spin_unlock(&fc->lock); fuse_invalidate_attr(inode); fuse_invalidate_attr(dir); fuse_invalidate_entry_cache(entry); @@ -762,8 +758,17 @@ static int fuse_link(struct dentry *entry, struct inode *newdir, will reflect changes in the backing inode (link count, etc.) */ - if (!err || err == -EINTR) + if (!err) { + struct fuse_inode *fi = get_fuse_inode(inode); + + spin_lock(&fc->lock); + fi->attr_version = ++fc->attr_version; + inc_nlink(inode); + spin_unlock(&fc->lock); + fuse_invalidate_attr(inode); + } else if (err == -EINTR) { fuse_invalidate_attr(inode); + } return err; } diff --git a/fs/fuse/file.c b/fs/fuse/file.c index a841868bf9ce..504e61b7fd75 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -194,10 +194,6 @@ int fuse_open_common(struct inode *inode, struct file *file, bool isdir) struct fuse_conn *fc = get_fuse_conn(inode); int err; - /* VFS checks this, but only _after_ ->open() */ - if (file->f_flags & O_DIRECT) - return -EINVAL; - err = generic_file_open(inode, file); if (err) return err; @@ -932,17 +928,23 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, struct file *file = iocb->ki_filp; struct address_space *mapping = file->f_mapping; size_t count = 0; + size_t ocount = 0; ssize_t written = 0; + ssize_t written_buffered = 0; struct inode *inode = mapping->host; ssize_t err; struct iov_iter i; + loff_t endbyte = 0; WARN_ON(iocb->ki_pos != pos); - err = generic_segment_checks(iov, &nr_segs, &count, VERIFY_READ); + ocount = 0; + err = generic_segment_checks(iov, &nr_segs, &ocount, VERIFY_READ); if (err) return err; + count = ocount; + mutex_lock(&inode->i_mutex); vfs_check_frozen(inode->i_sb, SB_FREEZE_WRITE); @@ -962,11 +964,41 @@ static ssize_t fuse_file_aio_write(struct kiocb *iocb, const struct iovec *iov, file_update_time(file); - iov_iter_init(&i, iov, nr_segs, count, 0); - written = fuse_perform_write(file, mapping, &i, pos); - if (written >= 0) - iocb->ki_pos = pos + written; + if (file->f_flags & O_DIRECT) { + written = generic_file_direct_write(iocb, iov, &nr_segs, + pos, &iocb->ki_pos, + count, ocount); + if (written < 0 || written == count) + goto out; + + pos += written; + count -= written; + iov_iter_init(&i, iov, nr_segs, count, written); + written_buffered = fuse_perform_write(file, mapping, &i, pos); + if (written_buffered < 0) { + err = written_buffered; + goto out; + } + endbyte = pos + written_buffered - 1; + + err = filemap_write_and_wait_range(file->f_mapping, pos, + endbyte); + if (err) + goto out; + + invalidate_mapping_pages(file->f_mapping, + pos >> PAGE_CACHE_SHIFT, + endbyte >> PAGE_CACHE_SHIFT); + + written += written_buffered; + iocb->ki_pos = pos + written_buffered; + } else { + iov_iter_init(&i, iov, nr_segs, count, 0); + written = fuse_perform_write(file, mapping, &i, pos); + if (written >= 0) + iocb->ki_pos = pos + written; + } out: current->backing_dev_info = NULL; mutex_unlock(&inode->i_mutex); @@ -1101,30 +1133,41 @@ static ssize_t fuse_direct_read(struct file *file, char __user *buf, return res; } -static ssize_t fuse_direct_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) +static ssize_t __fuse_direct_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) { struct inode *inode = file->f_path.dentry->d_inode; ssize_t res; - if (is_bad_inode(inode)) - return -EIO; - - /* Don't allow parallel writes to the same file */ - mutex_lock(&inode->i_mutex); res = generic_write_checks(file, ppos, &count, 0); if (!res) { res = fuse_direct_io(file, buf, count, ppos, 1); if (res > 0) fuse_write_update_size(inode, *ppos); } - mutex_unlock(&inode->i_mutex); fuse_invalidate_attr(inode); return res; } +static ssize_t fuse_direct_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct inode *inode = file->f_path.dentry->d_inode; + ssize_t res; + + if (is_bad_inode(inode)) + return -EIO; + + /* Don't allow parallel writes to the same file */ + mutex_lock(&inode->i_mutex); + res = __fuse_direct_write(file, buf, count, ppos); + mutex_unlock(&inode->i_mutex); + + return res; +} + static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req) { __free_page(req->pages[0]); @@ -2077,6 +2120,57 @@ int fuse_notify_poll_wakeup(struct fuse_conn *fc, return 0; } +static ssize_t fuse_loop_dio(struct file *filp, const struct iovec *iov, + unsigned long nr_segs, loff_t *ppos, int rw) +{ + const struct iovec *vector = iov; + ssize_t ret = 0; + + while (nr_segs > 0) { + void __user *base; + size_t len; + ssize_t nr; + + base = vector->iov_base; + len = vector->iov_len; + vector++; + nr_segs--; + + if (rw == WRITE) + nr = __fuse_direct_write(filp, base, len, ppos); + else + nr = fuse_direct_read(filp, base, len, ppos); + + if (nr < 0) { + if (!ret) + ret = nr; + break; + } + ret += nr; + if (nr != len) + break; + } + + return ret; +} + + +static ssize_t +fuse_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, + loff_t offset, unsigned long nr_segs) +{ + ssize_t ret = 0; + struct file *file = NULL; + loff_t pos = 0; + + file = iocb->ki_filp; + pos = offset; + + ret = fuse_loop_dio(file, iov, nr_segs, &pos, rw); + + return ret; +} + static const struct file_operations fuse_file_operations = { .llseek = fuse_file_llseek, .read = do_sync_read, @@ -2120,6 +2214,7 @@ static const struct address_space_operations fuse_file_aops = { .readpages = fuse_readpages, .set_page_dirty = __set_page_dirty_nobuffers, .bmap = fuse_bmap, + .direct_IO = fuse_direct_IO, }; void fuse_init_file_inode(struct inode *inode) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 4aec5995867e..26783eb2b1fc 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -947,6 +947,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent) sb->s_magic = FUSE_SUPER_MAGIC; sb->s_op = &fuse_super_operations; sb->s_maxbytes = MAX_LFS_FILESIZE; + sb->s_time_gran = 1; sb->s_export_op = &fuse_export_operations; file = fget(d.fd); diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c index 3ddcbb1c0a43..13ad1539fbf2 100644 --- a/fs/lockd/clnt4xdr.c +++ b/fs/lockd/clnt4xdr.c @@ -241,7 +241,7 @@ static int decode_nlm4_stat(struct xdr_stream *xdr, __be32 *stat) p = xdr_inline_decode(xdr, 4); if (unlikely(p == NULL)) goto out_overflow; - if (unlikely(*p > nlm4_failed)) + if (unlikely(ntohl(*p) > ntohl(nlm4_failed))) goto out_bad_xdr; *stat = *p; return 0; diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c index 3d35e3e80c1c..d269ada7670e 100644 --- a/fs/lockd/clntxdr.c +++ b/fs/lockd/clntxdr.c @@ -236,7 +236,7 @@ static int decode_nlm_stat(struct xdr_stream *xdr, p = xdr_inline_decode(xdr, 4); if (unlikely(p == NULL)) goto out_overflow; - if (unlikely(*p > nlm_lck_denied_grace_period)) + if (unlikely(ntohl(*p) > ntohl(nlm_lck_denied_grace_period))) goto out_enum; *stat = *p; return 0; diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c index 08c6e36ab2eb..43f46cd9edea 100644 --- a/fs/nfsd/nfs3xdr.c +++ b/fs/nfsd/nfs3xdr.c @@ -803,13 +803,13 @@ encode_entry_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, return p; } -static int +static __be32 compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, const char *name, int namlen) { struct svc_export *exp; struct dentry *dparent, *dchild; - int rv = 0; + __be32 rv = nfserr_noent; dparent = cd->fh.fh_dentry; exp = cd->fh.fh_export; @@ -817,26 +817,20 @@ compose_entry_fh(struct nfsd3_readdirres *cd, struct svc_fh *fhp, if (isdotent(name, namlen)) { if (namlen == 2) { dchild = dget_parent(dparent); - if (dchild == dparent) { - /* filesystem root - cannot return filehandle for ".." */ - dput(dchild); - return -ENOENT; - } + /* filesystem root - cannot return filehandle for ".." */ + if (dchild == dparent) + goto out; } else dchild = dget(dparent); } else dchild = lookup_one_len(name, dparent, namlen); if (IS_ERR(dchild)) - return -ENOENT; - rv = -ENOENT; + return rv; if (d_mountpoint(dchild)) goto out; - rv = fh_compose(fhp, exp, dchild, &cd->fh); - if (rv) - goto out; if (!dchild->d_inode) goto out; - rv = 0; + rv = fh_compose(fhp, exp, dchild, &cd->fh); out: dput(dchild); return rv; @@ -845,7 +839,7 @@ out: static __be32 *encode_entryplus_baggage(struct nfsd3_readdirres *cd, __be32 *p, const char *name, int namlen) { struct svc_fh fh; - int err; + __be32 err; fh_init(&fh, NFS3_FHSIZE); err = compose_entry_fh(cd, &fh, name, namlen); diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 2ed14dfd00a2..987e719fbae8 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -235,17 +235,17 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o */ if (open->op_createmode == NFS4_CREATE_EXCLUSIVE && status == 0) open->op_bmval[1] = (FATTR4_WORD1_TIME_ACCESS | - FATTR4_WORD1_TIME_MODIFY); + FATTR4_WORD1_TIME_MODIFY); } else { status = nfsd_lookup(rqstp, current_fh, open->op_fname.data, open->op_fname.len, resfh); fh_unlock(current_fh); - if (status) - goto out; - status = nfsd_check_obj_isreg(resfh); } if (status) goto out; + status = nfsd_check_obj_isreg(resfh); + if (status) + goto out; if (is_create_with_attrs(open) && open->op_acl != NULL) do_set_nfs4_acl(rqstp, resfh, open->op_acl, open->op_bmval); @@ -841,6 +841,7 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_setattr *setattr) { __be32 status = nfs_ok; + int err; if (setattr->sa_iattr.ia_valid & ATTR_SIZE) { nfs4_lock_state(); @@ -852,9 +853,9 @@ nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, return status; } } - status = fh_want_write(&cstate->current_fh); - if (status) - return status; + err = fh_want_write(&cstate->current_fh); + if (err) + return nfserrno(err); status = nfs_ok; status = check_attr_support(rqstp, cstate, setattr->sa_bmval, diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 1841f8bf845e..7f71c69cdcdf 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4211,16 +4211,14 @@ out: * vfs_test_lock. (Arguably perhaps test_lock should be done with an * inode operation.) */ -static int nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file_lock *lock) +static __be32 nfsd_test_lock(struct svc_rqst *rqstp, struct svc_fh *fhp, struct file_lock *lock) { struct file *file; - int err; - - err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); - if (err) - return err; - err = vfs_test_lock(file, lock); - nfsd_close(file); + __be32 err = nfsd_open(rqstp, fhp, S_IFREG, NFSD_MAY_READ, &file); + if (!err) { + err = nfserrno(vfs_test_lock(file, lock)); + nfsd_close(file); + } return err; } @@ -4234,7 +4232,6 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct inode *inode; struct file_lock file_lock; struct nfs4_lockowner *lo; - int error; __be32 status; if (locks_in_grace()) @@ -4280,12 +4277,10 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_transform_lock_offset(&file_lock); - status = nfs_ok; - error = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock); - if (error) { - status = nfserrno(error); + status = nfsd_test_lock(rqstp, &cstate->current_fh, &file_lock); + if (status) goto out; - } + if (file_lock.fl_type != F_UNLCK) { status = nfserr_denied; nfs4_set_lock_denied(&file_lock, &lockt->lt_denied); diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index bcd8904ab1e3..74c00bc92b9a 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1392,7 +1392,7 @@ nfsd4_decode_test_stateid(struct nfsd4_compoundargs *argp, struct nfsd4_test_sta for (i = 0; i < test_stateid->ts_num_ids; i++) { stateid = kmalloc(sizeof(struct nfsd4_test_stateid_id), GFP_KERNEL); if (!stateid) { - status = PTR_ERR(stateid); + status = nfserrno(-ENOMEM); goto out; } @@ -3410,7 +3410,7 @@ nfsd4_encode_test_stateid(struct nfsd4_compoundres *resp, int nfserr, *p++ = htonl(test_stateid->ts_num_ids); list_for_each_entry_safe(stateid, next, &test_stateid->ts_stateid_list, ts_id_list) { - *p++ = htonl(stateid->ts_id_status); + *p++ = stateid->ts_id_status; } ADJUST_ARGS(); diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 296d671654d6..568666156ea4 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -1458,7 +1458,7 @@ do_nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp, switch (createmode) { case NFS3_CREATE_UNCHECKED: if (! S_ISREG(dchild->d_inode->i_mode)) - err = nfserr_exist; + goto out; else if (truncp) { /* in nfsv4, we need to treat this case a little * differently. we don't want to truncate the diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c index 3165aebb43c8..31b9463fba1f 100644 --- a/fs/ocfs2/alloc.c +++ b/fs/ocfs2/alloc.c @@ -1134,7 +1134,7 @@ static int ocfs2_adjust_rightmost_branch(handle_t *handle, } el = path_leaf_el(path); - rec = &el->l_recs[le32_to_cpu(el->l_next_free_rec) - 1]; + rec = &el->l_recs[le16_to_cpu(el->l_next_free_rec) - 1]; ocfs2_adjust_rightmost_records(handle, et, path, rec); diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c index cf7823382664..9f32d7cbb7a3 100644 --- a/fs/ocfs2/refcounttree.c +++ b/fs/ocfs2/refcounttree.c @@ -1036,14 +1036,14 @@ static int ocfs2_get_refcount_cpos_end(struct ocfs2_caching_info *ci, tmp_el = left_path->p_node[subtree_root].el; blkno = left_path->p_node[subtree_root+1].bh->b_blocknr; - for (i = 0; i < le32_to_cpu(tmp_el->l_next_free_rec); i++) { + for (i = 0; i < le16_to_cpu(tmp_el->l_next_free_rec); i++) { if (le64_to_cpu(tmp_el->l_recs[i].e_blkno) == blkno) { *cpos_end = le32_to_cpu(tmp_el->l_recs[i+1].e_cpos); break; } } - BUG_ON(i == le32_to_cpu(tmp_el->l_next_free_rec)); + BUG_ON(i == le16_to_cpu(tmp_el->l_next_free_rec)); out: ocfs2_free_path(left_path); @@ -1468,7 +1468,7 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh, trace_ocfs2_divide_leaf_refcount_block( (unsigned long long)ref_leaf_bh->b_blocknr, - le32_to_cpu(rl->rl_count), le32_to_cpu(rl->rl_used)); + le16_to_cpu(rl->rl_count), le16_to_cpu(rl->rl_used)); /* * XXX: Improvement later. @@ -2411,7 +2411,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb, rb = (struct ocfs2_refcount_block *) prev_bh->b_data; - if (le64_to_cpu(rb->rf_records.rl_used) + + if (le16_to_cpu(rb->rf_records.rl_used) + recs_add > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; @@ -2476,7 +2476,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb, if (prev_bh) { rb = (struct ocfs2_refcount_block *)prev_bh->b_data; - if (le64_to_cpu(rb->rf_records.rl_used) + recs_add > + if (le16_to_cpu(rb->rf_records.rl_used) + recs_add > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; @@ -3629,7 +3629,7 @@ int ocfs2_refcounted_xattr_delete_need(struct inode *inode, * one will split a refcount rec, so totally we need * clusters * 2 new refcount rec. */ - if (le64_to_cpu(rb->rf_records.rl_used) + clusters * 2 > + if (le16_to_cpu(rb->rf_records.rl_used) + clusters * 2 > le16_to_cpu(rb->rf_records.rl_count)) ref_blocks++; diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c index ba5d97e4a73e..f169da4624fd 100644 --- a/fs/ocfs2/suballoc.c +++ b/fs/ocfs2/suballoc.c @@ -600,7 +600,7 @@ static void ocfs2_bg_alloc_cleanup(handle_t *handle, ret = ocfs2_free_clusters(handle, cluster_ac->ac_inode, cluster_ac->ac_bh, le64_to_cpu(rec->e_blkno), - le32_to_cpu(rec->e_leaf_clusters)); + le16_to_cpu(rec->e_leaf_clusters)); if (ret) mlog_errno(ret); /* Try all the clusters to free */ @@ -1628,7 +1628,7 @@ static int ocfs2_bg_discontig_fix_by_rec(struct ocfs2_suballoc_result *res, { unsigned int bpc = le16_to_cpu(cl->cl_bpc); unsigned int bitoff = le32_to_cpu(rec->e_cpos) * bpc; - unsigned int bitcount = le32_to_cpu(rec->e_leaf_clusters) * bpc; + unsigned int bitcount = le16_to_cpu(rec->e_leaf_clusters) * bpc; if (res->sr_bit_offset < bitoff) return 0; diff --git a/include/linux/clk-private.h b/include/linux/clk-private.h index 5e4312b6f5cc..eb3f84bc5325 100644 --- a/include/linux/clk-private.h +++ b/include/linux/clk-private.h @@ -30,7 +30,7 @@ struct clk { const struct clk_ops *ops; struct clk_hw *hw; struct clk *parent; - char **parent_names; + const char **parent_names; struct clk **parents; u8 num_parents; unsigned long rate; @@ -55,12 +55,22 @@ struct clk { * alternative macro for static initialization */ -extern struct clk_ops clk_fixed_rate_ops; +#define DEFINE_CLK(_name, _ops, _flags, _parent_names, \ + _parents) \ + static struct clk _name = { \ + .name = #_name, \ + .ops = &_ops, \ + .hw = &_name##_hw.hw, \ + .parent_names = _parent_names, \ + .num_parents = ARRAY_SIZE(_parent_names), \ + .parents = _parents, \ + .flags = _flags, \ + } #define DEFINE_CLK_FIXED_RATE(_name, _flags, _rate, \ _fixed_rate_flags) \ static struct clk _name; \ - static char *_name##_parent_names[] = {}; \ + static const char *_name##_parent_names[] = {}; \ static struct clk_fixed_rate _name##_hw = { \ .hw = { \ .clk = &_name, \ @@ -68,23 +78,14 @@ extern struct clk_ops clk_fixed_rate_ops; .fixed_rate = _rate, \ .flags = _fixed_rate_flags, \ }; \ - static struct clk _name = { \ - .name = #_name, \ - .ops = &clk_fixed_rate_ops, \ - .hw = &_name##_hw.hw, \ - .parent_names = _name##_parent_names, \ - .num_parents = \ - ARRAY_SIZE(_name##_parent_names), \ - .flags = _flags, \ - }; - -extern struct clk_ops clk_gate_ops; + DEFINE_CLK(_name, clk_fixed_rate_ops, _flags, \ + _name##_parent_names, NULL); #define DEFINE_CLK_GATE(_name, _parent_name, _parent_ptr, \ _flags, _reg, _bit_idx, \ _gate_flags, _lock) \ static struct clk _name; \ - static char *_name##_parent_names[] = { \ + static const char *_name##_parent_names[] = { \ _parent_name, \ }; \ static struct clk *_name##_parents[] = { \ @@ -99,24 +100,14 @@ extern struct clk_ops clk_gate_ops; .flags = _gate_flags, \ .lock = _lock, \ }; \ - static struct clk _name = { \ - .name = #_name, \ - .ops = &clk_gate_ops, \ - .hw = &_name##_hw.hw, \ - .parent_names = _name##_parent_names, \ - .num_parents = \ - ARRAY_SIZE(_name##_parent_names), \ - .parents = _name##_parents, \ - .flags = _flags, \ - }; - -extern struct clk_ops clk_divider_ops; + DEFINE_CLK(_name, clk_gate_ops, _flags, \ + _name##_parent_names, _name##_parents); #define DEFINE_CLK_DIVIDER(_name, _parent_name, _parent_ptr, \ _flags, _reg, _shift, _width, \ _divider_flags, _lock) \ static struct clk _name; \ - static char *_name##_parent_names[] = { \ + static const char *_name##_parent_names[] = { \ _parent_name, \ }; \ static struct clk *_name##_parents[] = { \ @@ -132,18 +123,8 @@ extern struct clk_ops clk_divider_ops; .flags = _divider_flags, \ .lock = _lock, \ }; \ - static struct clk _name = { \ - .name = #_name, \ - .ops = &clk_divider_ops, \ - .hw = &_name##_hw.hw, \ - .parent_names = _name##_parent_names, \ - .num_parents = \ - ARRAY_SIZE(_name##_parent_names), \ - .parents = _name##_parents, \ - .flags = _flags, \ - }; - -extern struct clk_ops clk_mux_ops; + DEFINE_CLK(_name, clk_divider_ops, _flags, \ + _name##_parent_names, _name##_parents); #define DEFINE_CLK_MUX(_name, _parent_names, _parents, _flags, \ _reg, _shift, _width, \ @@ -159,16 +140,28 @@ extern struct clk_ops clk_mux_ops; .flags = _mux_flags, \ .lock = _lock, \ }; \ - static struct clk _name = { \ - .name = #_name, \ - .ops = &clk_mux_ops, \ - .hw = &_name##_hw.hw, \ - .parent_names = _parent_names, \ - .num_parents = \ - ARRAY_SIZE(_parent_names), \ - .parents = _parents, \ - .flags = _flags, \ - }; + DEFINE_CLK(_name, clk_mux_ops, _flags, _parent_names, \ + _parents); + +#define DEFINE_CLK_FIXED_FACTOR(_name, _parent_name, \ + _parent_ptr, _flags, \ + _mult, _div) \ + static struct clk _name; \ + static const char *_name##_parent_names[] = { \ + _parent_name, \ + }; \ + static struct clk *_name##_parents[] = { \ + _parent_ptr, \ + }; \ + static struct clk_fixed_factor _name##_hw = { \ + .hw = { \ + .clk = &_name, \ + }, \ + .mult = _mult, \ + .div = _div, \ + }; \ + DEFINE_CLK(_name, clk_fixed_factor_ops, _flags, \ + _name##_parent_names, _name##_parents); /** * __clk_init - initialize the data structures in a struct clk @@ -189,8 +182,12 @@ extern struct clk_ops clk_mux_ops; * * It is not necessary to call clk_register if __clk_init is used directly with * statically initialized clock data. + * + * Returns 0 on success, otherwise an error code. */ -void __clk_init(struct device *dev, struct clk *clk); +int __clk_init(struct device *dev, struct clk *clk); + +struct clk *__clk_register(struct device *dev, struct clk_hw *hw); #endif /* CONFIG_COMMON_CLK */ #endif /* CLK_PRIVATE_H */ diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 5508897ad376..c1c23b9ec368 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -15,19 +15,6 @@ #ifdef CONFIG_COMMON_CLK -/** - * struct clk_hw - handle for traversing from a struct clk to its corresponding - * hardware-specific structure. struct clk_hw should be declared within struct - * clk_foo and then referenced by the struct clk instance that uses struct - * clk_foo's clk_ops - * - * clk: pointer to the struct clk instance that points back to this struct - * clk_hw instance - */ -struct clk_hw { - struct clk *clk; -}; - /* * flags used across common struct clk. these flags should only affect the * top-level framework. custom flags for dealing with hardware specifics @@ -39,6 +26,8 @@ struct clk_hw { #define CLK_IGNORE_UNUSED BIT(3) /* do not gate even if unused */ #define CLK_IS_ROOT BIT(4) /* root clk, has no parent */ +struct clk_hw; + /** * struct clk_ops - Callback operations for hardware clocks; these are to * be provided by the clock implementation, and will be called by drivers @@ -88,19 +77,11 @@ struct clk_hw { * array index into the value programmed into the hardware. * Returns 0 on success, -EERROR otherwise. * - * @set_rate: Change the rate of this clock. If this callback returns - * CLK_SET_RATE_PARENT, the rate change will be propagated to the - * parent clock (which may propagate again if the parent clock - * also sets this flag). The requested rate of the parent is - * passed back from the callback in the second 'unsigned long *' - * argument. Note that it is up to the hardware clock's set_rate - * implementation to insure that clocks do not run out of spec - * when propgating the call to set_rate up to the parent. One way - * to do this is to gate the clock (via clk_disable and/or - * clk_unprepare) before calling clk_set_rate, then ungating it - * afterward. If your clock also has the CLK_GATE_SET_RATE flag - * set then this will insure safety. Returns 0 on success, - * -EERROR otherwise. + * @set_rate: Change the rate of this clock. The requested rate is specified + * by the second argument, which should typically be the return + * of .round_rate call. The third argument gives the parent rate + * which is likely helpful for most .set_rate implementation. + * Returns 0 on success, -EERROR otherwise. * * The clk_enable/clk_disable and clk_prepare/clk_unprepare pairs allow * implementations to split any work between atomic (enable) and sleepable @@ -125,10 +106,46 @@ struct clk_ops { unsigned long *); int (*set_parent)(struct clk_hw *hw, u8 index); u8 (*get_parent)(struct clk_hw *hw); - int (*set_rate)(struct clk_hw *hw, unsigned long); + int (*set_rate)(struct clk_hw *hw, unsigned long, + unsigned long); void (*init)(struct clk_hw *hw); }; +/** + * struct clk_init_data - holds init data that's common to all clocks and is + * shared between the clock provider and the common clock framework. + * + * @name: clock name + * @ops: operations this clock supports + * @parent_names: array of string names for all possible parents + * @num_parents: number of possible parents + * @flags: framework-level hints and quirks + */ +struct clk_init_data { + const char *name; + const struct clk_ops *ops; + const char **parent_names; + u8 num_parents; + unsigned long flags; +}; + +/** + * struct clk_hw - handle for traversing from a struct clk to its corresponding + * hardware-specific structure. struct clk_hw should be declared within struct + * clk_foo and then referenced by the struct clk instance that uses struct + * clk_foo's clk_ops + * + * @clk: pointer to the struct clk instance that points back to this struct + * clk_hw instance + * + * @init: pointer to struct clk_init_data that contains the init data shared + * with the common clock framework. + */ +struct clk_hw { + struct clk *clk; + struct clk_init_data *init; +}; + /* * DOC: Basic clock implementations common to many platforms * @@ -149,6 +166,7 @@ struct clk_fixed_rate { u8 flags; }; +extern const struct clk_ops clk_fixed_rate_ops; struct clk *clk_register_fixed_rate(struct device *dev, const char *name, const char *parent_name, unsigned long flags, unsigned long fixed_rate); @@ -165,7 +183,7 @@ struct clk *clk_register_fixed_rate(struct device *dev, const char *name, * Clock which can gate its output. Implements .enable & .disable * * Flags: - * CLK_GATE_SET_DISABLE - by default this clock sets the bit at bit_idx to + * CLK_GATE_SET_TO_DISABLE - by default this clock sets the bit at bit_idx to * enable the clock. Setting this flag does the opposite: setting the bit * disable the clock and clearing it enables the clock */ @@ -175,11 +193,11 @@ struct clk_gate { u8 bit_idx; u8 flags; spinlock_t *lock; - char *parent[1]; }; #define CLK_GATE_SET_TO_DISABLE BIT(0) +extern const struct clk_ops clk_gate_ops; struct clk *clk_register_gate(struct device *dev, const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 bit_idx, @@ -212,12 +230,12 @@ struct clk_divider { u8 width; u8 flags; spinlock_t *lock; - char *parent[1]; }; #define CLK_DIVIDER_ONE_BASED BIT(0) #define CLK_DIVIDER_POWER_OF_TWO BIT(1) +extern const struct clk_ops clk_divider_ops; struct clk *clk_register_divider(struct device *dev, const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 shift, u8 width, @@ -238,7 +256,7 @@ struct clk *clk_register_divider(struct device *dev, const char *name, * * Flags: * CLK_MUX_INDEX_ONE - register index starts at 1, not 0 - * CLK_MUX_INDEX_BITWISE - register index is a single bit (power of two) + * CLK_MUX_INDEX_BIT - register index is a single bit (power of two) */ struct clk_mux { struct clk_hw hw; @@ -252,29 +270,47 @@ struct clk_mux { #define CLK_MUX_INDEX_ONE BIT(0) #define CLK_MUX_INDEX_BIT BIT(1) +extern const struct clk_ops clk_mux_ops; struct clk *clk_register_mux(struct device *dev, const char *name, - char **parent_names, u8 num_parents, unsigned long flags, + const char **parent_names, u8 num_parents, unsigned long flags, void __iomem *reg, u8 shift, u8 width, u8 clk_mux_flags, spinlock_t *lock); /** + * struct clk_fixed_factor - fixed multiplier and divider clock + * + * @hw: handle between common and hardware-specific interfaces + * @mult: multiplier + * @div: divider + * + * Clock with a fixed multiplier and divider. The output frequency is the + * parent clock rate divided by div and multiplied by mult. + * Implements .recalc_rate, .set_rate and .round_rate + */ + +struct clk_fixed_factor { + struct clk_hw hw; + unsigned int mult; + unsigned int div; +}; + +extern struct clk_ops clk_fixed_factor_ops; +struct clk *clk_register_fixed_factor(struct device *dev, const char *name, + const char *parent_name, unsigned long flags, + unsigned int mult, unsigned int div); + +/** * clk_register - allocate a new clock, register it and return an opaque cookie * @dev: device that is registering this clock - * @name: clock name - * @ops: operations this clock supports * @hw: link to hardware-specific clock data - * @parent_names: array of string names for all possible parents - * @num_parents: number of possible parents - * @flags: framework-level hints and quirks * * clk_register is the primary interface for populating the clock tree with new * clock nodes. It returns a pointer to the newly allocated struct clk which * cannot be dereferenced by driver code but may be used in conjuction with the - * rest of the clock API. + * rest of the clock API. In the event of an error clk_register will return an + * error code; drivers must test for an error code after calling clk_register. */ -struct clk *clk_register(struct device *dev, const char *name, - const struct clk_ops *ops, struct clk_hw *hw, - char **parent_names, u8 num_parents, unsigned long flags); +struct clk *clk_register(struct device *dev, struct clk_hw *hw); /* helper functions */ const char *__clk_get_name(struct clk *clk); diff --git a/include/linux/clk.h b/include/linux/clk.h index 70cf722ac3af..ad5c43e8ae8a 100644 --- a/include/linux/clk.h +++ b/include/linux/clk.h @@ -81,7 +81,7 @@ int clk_notifier_register(struct clk *clk, struct notifier_block *nb); int clk_notifier_unregister(struct clk *clk, struct notifier_block *nb); -#endif /* !CONFIG_COMMON_CLK */ +#endif /** * clk_get - lookup and obtain a reference to a clock producer. @@ -252,7 +252,7 @@ void devm_clk_put(struct device *dev, struct clk *clk); * Returns rounded clock rate in Hz, or negative errno. */ long clk_round_rate(struct clk *clk, unsigned long rate); - + /** * clk_set_rate - set the clock rate for a clock source * @clk: clock source @@ -261,7 +261,7 @@ long clk_round_rate(struct clk *clk, unsigned long rate); * Returns success (0) or negative errno. */ int clk_set_rate(struct clk *clk, unsigned long rate); - + /** * clk_set_parent - set the parent clock source for this clock * @clk: clock source diff --git a/include/linux/fuse.h b/include/linux/fuse.h index 8ba2c9460b28..8f2ab8fef929 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -593,7 +593,7 @@ struct fuse_dirent { __u64 off; __u32 namelen; __u32 type; - char name[0]; + char name[]; }; #define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name) diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h index 2463b6100333..1f90de0cfdbe 100644 --- a/include/linux/i2c/twl.h +++ b/include/linux/i2c/twl.h @@ -666,23 +666,11 @@ struct twl4030_codec_data { unsigned int check_defaults:1; unsigned int reset_registers:1; unsigned int hs_extmute:1; - u16 hs_left_step; - u16 hs_right_step; - u16 hf_left_step; - u16 hf_right_step; void (*set_hs_extmute)(int mute); }; struct twl4030_vibra_data { unsigned int coexist; - - /* twl6040 */ - unsigned int vibldrv_res; /* left driver resistance */ - unsigned int vibrdrv_res; /* right driver resistance */ - unsigned int viblmotor_res; /* left motor resistance */ - unsigned int vibrmotor_res; /* right motor resistance */ - int vddvibl_uV; /* VDDVIBL volt, set 0 for fixed reg */ - int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ }; struct twl4030_audio_data { diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 665a260c7e09..72cbf08d45fb 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -596,6 +596,7 @@ void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id); #ifdef CONFIG_IOMMU_API int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot); +void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot); int kvm_iommu_map_guest(struct kvm *kvm); int kvm_iommu_unmap_guest(struct kvm *kvm); int kvm_assign_device(struct kvm *kvm, @@ -609,6 +610,11 @@ static inline int kvm_iommu_map_pages(struct kvm *kvm, return 0; } +static inline void kvm_iommu_unmap_pages(struct kvm *kvm, + struct kvm_memory_slot *slot) +{ +} + static inline int kvm_iommu_map_guest(struct kvm *kvm) { return -ENODEV; diff --git a/include/linux/mfd/db5500-prcmu.h b/include/linux/mfd/db5500-prcmu.h index 9890687f582d..5a049dfaf153 100644 --- a/include/linux/mfd/db5500-prcmu.h +++ b/include/linux/mfd/db5500-prcmu.h @@ -8,41 +8,14 @@ #ifndef __MFD_DB5500_PRCMU_H #define __MFD_DB5500_PRCMU_H -#ifdef CONFIG_MFD_DB5500_PRCMU - -void db5500_prcmu_early_init(void); -int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state); -int db5500_prcmu_set_display_clocks(void); -int db5500_prcmu_disable_dsipll(void); -int db5500_prcmu_enable_dsipll(void); -int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); -int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size); -void db5500_prcmu_enable_wakeups(u32 wakeups); -int db5500_prcmu_request_clock(u8 clock, bool enable); -void db5500_prcmu_config_abb_event_readout(u32 abb_events); -void db5500_prcmu_get_abb_event_buffer(void __iomem **buf); -int prcmu_resetout(u8 resoutn, u8 state); -int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, - bool keep_ap_pll); -int db5500_prcmu_config_esram0_deep_sleep(u8 state); -void db5500_prcmu_system_reset(u16 reset_code); -u16 db5500_prcmu_get_reset_code(void); -bool db5500_prcmu_is_ac_wake_requested(void); -int db5500_prcmu_set_arm_opp(u8 opp); -int db5500_prcmu_get_arm_opp(void); - -#else /* !CONFIG_UX500_SOC_DB5500 */ - -static inline void db5500_prcmu_early_init(void) {} - -static inline int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) +static inline int prcmu_resetout(u8 resoutn, u8 state) { - return -ENOSYS; + return 0; } -static inline int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size) +static inline int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state) { - return -ENOSYS; + return 0; } static inline int db5500_prcmu_request_clock(u8 clock, bool enable) @@ -50,69 +23,82 @@ static inline int db5500_prcmu_request_clock(u8 clock, bool enable) return 0; } -static inline int db5500_prcmu_set_display_clocks(void) +static inline int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, + bool keep_ap_pll) { return 0; } -static inline int db5500_prcmu_disable_dsipll(void) +static inline int db5500_prcmu_config_esram0_deep_sleep(u8 state) { return 0; } -static inline int db5500_prcmu_enable_dsipll(void) +static inline u16 db5500_prcmu_get_reset_code(void) { return 0; } -static inline int db5500_prcmu_config_esram0_deep_sleep(u8 state) +static inline bool db5500_prcmu_is_ac_wake_requested(void) { return 0; } -static inline void db5500_prcmu_enable_wakeups(u32 wakeups) {} - -static inline int prcmu_resetout(u8 resoutn, u8 state) +static inline int db5500_prcmu_set_arm_opp(u8 opp) { return 0; } -static inline int db5500_prcmu_set_epod(u16 epod_id, u8 epod_state) +static inline int db5500_prcmu_get_arm_opp(void) { return 0; } -static inline void db5500_prcmu_get_abb_event_buffer(void __iomem **buf) {} static inline void db5500_prcmu_config_abb_event_readout(u32 abb_events) {} -static inline int db5500_prcmu_set_power_state(u8 state, bool keep_ulp_clk, - bool keep_ap_pll) -{ - return 0; -} +static inline void db5500_prcmu_get_abb_event_buffer(void __iomem **buf) {} static inline void db5500_prcmu_system_reset(u16 reset_code) {} -static inline u16 db5500_prcmu_get_reset_code(void) +static inline void db5500_prcmu_enable_wakeups(u32 wakeups) {} + +#ifdef CONFIG_MFD_DB5500_PRCMU + +void db5500_prcmu_early_init(void); +int db5500_prcmu_set_display_clocks(void); +int db5500_prcmu_disable_dsipll(void); +int db5500_prcmu_enable_dsipll(void); +int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size); +int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size); + +#else /* !CONFIG_UX500_SOC_DB5500 */ + +static inline void db5500_prcmu_early_init(void) {} + +static inline int db5500_prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size) { - return 0; + return -ENOSYS; } -static inline bool db5500_prcmu_is_ac_wake_requested(void) +static inline int db5500_prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size) { - return 0; + return -ENOSYS; } -static inline int db5500_prcmu_set_arm_opp(u8 opp) +static inline int db5500_prcmu_set_display_clocks(void) { return 0; } -static inline int db5500_prcmu_get_arm_opp(void) +static inline int db5500_prcmu_disable_dsipll(void) { return 0; } +static inline int db5500_prcmu_enable_dsipll(void) +{ + return 0; +} #endif /* CONFIG_MFD_DB5500_PRCMU */ diff --git a/include/linux/mfd/rc5t583.h b/include/linux/mfd/rc5t583.h index a2c61609d21d..0b64b19d81ab 100644 --- a/include/linux/mfd/rc5t583.h +++ b/include/linux/mfd/rc5t583.h @@ -26,6 +26,7 @@ #include <linux/mutex.h> #include <linux/types.h> +#include <linux/regmap.h> #define RC5T583_MAX_REGS 0xF8 @@ -279,14 +280,44 @@ struct rc5t583_platform_data { bool enable_shutdown; }; -int rc5t583_write(struct device *dev, u8 reg, uint8_t val); -int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val); -int rc5t583_set_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask); -int rc5t583_clear_bits(struct device *dev, unsigned int reg, - unsigned int bit_mask); -int rc5t583_update(struct device *dev, unsigned int reg, - unsigned int val, unsigned int mask); +static inline int rc5t583_write(struct device *dev, uint8_t reg, uint8_t val) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_write(rc5t583->regmap, reg, val); +} + +static inline int rc5t583_read(struct device *dev, uint8_t reg, uint8_t *val) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + unsigned int ival; + int ret; + ret = regmap_read(rc5t583->regmap, reg, &ival); + if (!ret) + *val = (uint8_t)ival; + return ret; +} + +static inline int rc5t583_set_bits(struct device *dev, unsigned int reg, + unsigned int bit_mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, bit_mask, bit_mask); +} + +static inline int rc5t583_clear_bits(struct device *dev, unsigned int reg, + unsigned int bit_mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, bit_mask, 0); +} + +static inline int rc5t583_update(struct device *dev, unsigned int reg, + unsigned int val, unsigned int mask) +{ + struct rc5t583 *rc5t583 = dev_get_drvdata(dev); + return regmap_update_bits(rc5t583->regmap, reg, mask, val); +} + int rc5t583_ext_power_req_config(struct device *dev, int deepsleep_id, int ext_pwr_req, int deepsleep_slot_nr); int rc5t583_irq_init(struct rc5t583 *rc5t583, int irq, int irq_base); diff --git a/include/linux/mfd/twl6040.h b/include/linux/mfd/twl6040.h index 9bc9ac651dad..b15b5f03f5c4 100644 --- a/include/linux/mfd/twl6040.h +++ b/include/linux/mfd/twl6040.h @@ -174,8 +174,35 @@ #define TWL6040_SYSCLK_SEL_LPPLL 0 #define TWL6040_SYSCLK_SEL_HPPLL 1 +struct twl6040_codec_data { + u16 hs_left_step; + u16 hs_right_step; + u16 hf_left_step; + u16 hf_right_step; +}; + +struct twl6040_vibra_data { + unsigned int vibldrv_res; /* left driver resistance */ + unsigned int vibrdrv_res; /* right driver resistance */ + unsigned int viblmotor_res; /* left motor resistance */ + unsigned int vibrmotor_res; /* right motor resistance */ + int vddvibl_uV; /* VDDVIBL volt, set 0 for fixed reg */ + int vddvibr_uV; /* VDDVIBR volt, set 0 for fixed reg */ +}; + +struct twl6040_platform_data { + int audpwron_gpio; /* audio power-on gpio */ + unsigned int irq_base; + + struct twl6040_codec_data *codec; + struct twl6040_vibra_data *vibra; +}; + +struct regmap; + struct twl6040 { struct device *dev; + struct regmap *regmap; struct mutex mutex; struct mutex io_mutex; struct mutex irq_mutex; diff --git a/include/linux/mm.h b/include/linux/mm.h index d8738a464b94..74aa71bea1e4 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1393,29 +1393,20 @@ extern int install_special_mapping(struct mm_struct *mm, extern unsigned long get_unmapped_area(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); -extern unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, - unsigned long len, unsigned long prot, - unsigned long flag, unsigned long pgoff); extern unsigned long mmap_region(struct file *file, unsigned long addr, unsigned long len, unsigned long flags, vm_flags_t vm_flags, unsigned long pgoff); - -static inline unsigned long do_mmap(struct file *file, unsigned long addr, - unsigned long len, unsigned long prot, - unsigned long flag, unsigned long offset) -{ - unsigned long ret = -EINVAL; - if ((offset + PAGE_ALIGN(len)) < offset) - goto out; - if (!(offset & ~PAGE_MASK)) - ret = do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); -out: - return ret; -} - +extern unsigned long do_mmap(struct file *, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); extern int do_munmap(struct mm_struct *, unsigned long, size_t); -extern unsigned long do_brk(unsigned long, unsigned long); +/* These take the mm semaphore themselves */ +extern unsigned long vm_brk(unsigned long, unsigned long); +extern int vm_munmap(unsigned long, size_t); +extern unsigned long vm_mmap(struct file *, unsigned long, + unsigned long, unsigned long, + unsigned long, unsigned long); /* truncate.c */ extern void truncate_inode_pages(struct address_space *, loff_t); diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 01beae78f079..629b823f8836 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -481,7 +481,7 @@ struct mmc_driver { struct device_driver drv; int (*probe)(struct mmc_card *); void (*remove)(struct mmc_card *); - int (*suspend)(struct mmc_card *, pm_message_t); + int (*suspend)(struct mmc_card *); int (*resume)(struct mmc_card *); }; diff --git a/include/linux/nfsd/Kbuild b/include/linux/nfsd/Kbuild index b8d4001212b3..5b7d84ac954a 100644 --- a/include/linux/nfsd/Kbuild +++ b/include/linux/nfsd/Kbuild @@ -1,3 +1,4 @@ +header-y += cld.h header-y += debug.h header-y += export.h header-y += nfsfh.h diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index f67810f8f21b..38ab3f46346f 100644 --- a/include/linux/usb/otg.h +++ b/include/linux/usb/otg.h @@ -94,6 +94,7 @@ struct usb_phy { struct usb_otg *otg; + struct device *io_dev; struct usb_phy_io_ops *io_ops; void __iomem *io_priv; diff --git a/lib/mpi/mpi-bit.c b/lib/mpi/mpi-bit.c index 2f526627e4f5..0c505361da19 100644 --- a/lib/mpi/mpi-bit.c +++ b/lib/mpi/mpi-bit.c @@ -177,8 +177,8 @@ int mpi_rshift(MPI x, MPI a, unsigned n) */ int mpi_lshift_limbs(MPI a, unsigned int count) { - mpi_ptr_t ap = a->d; - int n = a->nlimbs; + const int n = a->nlimbs; + mpi_ptr_t ap; int i; if (!count || !n) @@ -187,6 +187,7 @@ int mpi_lshift_limbs(MPI a, unsigned int count) if (RESIZE_IF_NEEDED(a, n + count) < 0) return -ENOMEM; + ap = a->d; for (i = n - 1; i >= 0; i--) ap[i + count] = ap[i]; for (i = 0; i < count; i++) diff --git a/mm/memblock.c b/mm/memblock.c index 99f285599501..a44eab3157f8 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -330,6 +330,9 @@ static int __init_memblock memblock_add_region(struct memblock_type *type, phys_addr_t end = base + memblock_cap_size(base, &size); int i, nr_new; + if (!size) + return 0; + /* special case for empty array */ if (type->regions[0].size == 0) { WARN_ON(type->cnt != 1 || type->total_size); @@ -430,6 +433,9 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type, *start_rgn = *end_rgn = 0; + if (!size) + return 0; + /* we'll create at most two more regions */ while (type->cnt + 2 > type->max) if (memblock_double_array(type) < 0) @@ -514,7 +520,6 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size) (unsigned long long)base, (unsigned long long)base + size, (void *)_RET_IP_); - BUG_ON(0 == size); return memblock_add_region(_rgn, base, size, MAX_NUMNODES); } diff --git a/mm/memcontrol.c b/mm/memcontrol.c index a7165a60d0a7..b868def9bcc1 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3392,6 +3392,7 @@ void mem_cgroup_replace_page_cache(struct page *oldpage, * the newpage may be on LRU(or pagevec for LRU) already. We lock * LRU while we overwrite pc->mem_cgroup. */ + pc = lookup_page_cgroup(newpage); __mem_cgroup_commit_charge(memcg, newpage, 1, pc, type, true); } diff --git a/mm/mmap.c b/mm/mmap.c index a7bf6a31c9f6..848ef52d9603 100644 --- a/mm/mmap.c +++ b/mm/mmap.c @@ -240,6 +240,8 @@ static struct vm_area_struct *remove_vma(struct vm_area_struct *vma) return next; } +static unsigned long do_brk(unsigned long addr, unsigned long len); + SYSCALL_DEFINE1(brk, unsigned long, brk) { unsigned long rlim, retval; @@ -951,7 +953,7 @@ static inline unsigned long round_hint_to_min(unsigned long hint) * The caller must hold down_write(¤t->mm->mmap_sem). */ -unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, +static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long pgoff) { @@ -1087,7 +1089,32 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, return mmap_region(file, addr, len, flags, vm_flags, pgoff); } -EXPORT_SYMBOL(do_mmap_pgoff); + +unsigned long do_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + if (unlikely(offset + PAGE_ALIGN(len) < offset)) + return -EINVAL; + if (unlikely(offset & ~PAGE_MASK)) + return -EINVAL; + return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); +} +EXPORT_SYMBOL(do_mmap); + +unsigned long vm_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + unsigned long ret; + struct mm_struct *mm = current->mm; + + down_write(&mm->mmap_sem); + ret = do_mmap(file, addr, len, prot, flag, offset); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_mmap); SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, @@ -2105,21 +2132,25 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len) return 0; } - EXPORT_SYMBOL(do_munmap); -SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +int vm_munmap(unsigned long start, size_t len) { int ret; struct mm_struct *mm = current->mm; - profile_munmap(addr); - down_write(&mm->mmap_sem); - ret = do_munmap(mm, addr, len); + ret = do_munmap(mm, start, len); up_write(&mm->mmap_sem); return ret; } +EXPORT_SYMBOL(vm_munmap); + +SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +{ + profile_munmap(addr); + return vm_munmap(addr, len); +} static inline void verify_mm_writelocked(struct mm_struct *mm) { @@ -2136,7 +2167,7 @@ static inline void verify_mm_writelocked(struct mm_struct *mm) * anonymous maps. eventually we may be able to do some * brk-specific accounting here. */ -unsigned long do_brk(unsigned long addr, unsigned long len) +static unsigned long do_brk(unsigned long addr, unsigned long len) { struct mm_struct * mm = current->mm; struct vm_area_struct * vma, * prev; @@ -2232,7 +2263,17 @@ out: return addr; } -EXPORT_SYMBOL(do_brk); +unsigned long vm_brk(unsigned long addr, unsigned long len) +{ + struct mm_struct *mm = current->mm; + unsigned long ret; + + down_write(&mm->mmap_sem); + ret = do_brk(addr, len); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_brk); /* Release all mmaps. */ void exit_mmap(struct mm_struct *mm) diff --git a/mm/nommu.c b/mm/nommu.c index f59e170fceb4..bb8f4f004a82 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1233,7 +1233,7 @@ enomem: /* * handle mapping creation for uClinux */ -unsigned long do_mmap_pgoff(struct file *file, +static unsigned long do_mmap_pgoff(struct file *file, unsigned long addr, unsigned long len, unsigned long prot, @@ -1470,7 +1470,32 @@ error_getting_region: show_free_areas(0); return -ENOMEM; } -EXPORT_SYMBOL(do_mmap_pgoff); + +unsigned long do_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + if (unlikely(offset + PAGE_ALIGN(len) < offset)) + return -EINVAL; + if (unlikely(offset & ~PAGE_MASK)) + return -EINVAL; + return do_mmap_pgoff(file, addr, len, prot, flag, offset >> PAGE_SHIFT); +} +EXPORT_SYMBOL(do_mmap); + +unsigned long vm_mmap(struct file *file, unsigned long addr, + unsigned long len, unsigned long prot, + unsigned long flag, unsigned long offset) +{ + unsigned long ret; + struct mm_struct *mm = current->mm; + + down_write(&mm->mmap_sem); + ret = do_mmap(file, addr, len, prot, flag, offset); + up_write(&mm->mmap_sem); + return ret; +} +EXPORT_SYMBOL(vm_mmap); SYSCALL_DEFINE6(mmap_pgoff, unsigned long, addr, unsigned long, len, unsigned long, prot, unsigned long, flags, @@ -1709,16 +1734,22 @@ erase_whole_vma: } EXPORT_SYMBOL(do_munmap); -SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +int vm_munmap(unsigned long addr, size_t len) { - int ret; struct mm_struct *mm = current->mm; + int ret; down_write(&mm->mmap_sem); ret = do_munmap(mm, addr, len); up_write(&mm->mmap_sem); return ret; } +EXPORT_SYMBOL(vm_munmap); + +SYSCALL_DEFINE2(munmap, unsigned long, addr, size_t, len) +{ + return vm_munmap(addr, len); +} /* * release all the mappings made in a process's VM space @@ -1744,7 +1775,7 @@ void exit_mmap(struct mm_struct *mm) kleave(""); } -unsigned long do_brk(unsigned long addr, unsigned long len) +unsigned long vm_brk(unsigned long addr, unsigned long len) { return -ENOMEM; } diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index de639eeeed50..faea0ec612bf 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -1869,12 +1869,6 @@ sub process { "No space is necessary after a cast\n" . $hereprev); } - if ($rawline =~ /^\+[ \t]*\/\*[ \t]*$/ && - $prevrawline =~ /^\+[ \t]*$/) { - CHK("BLOCK_COMMENT_STYLE", - "Don't begin block comments with only a /* line, use /* comment...\n" . $hereprev); - } - # check for spaces at the beginning of a line. # Exceptions: # 1) within comments diff --git a/scripts/xz_wrap.sh b/scripts/xz_wrap.sh index 17a5798c29da..7a2d372f4885 100644 --- a/scripts/xz_wrap.sh +++ b/scripts/xz_wrap.sh @@ -12,8 +12,8 @@ BCJ= LZMA2OPTS= -case $ARCH in - x86|x86_64) BCJ=--x86 ;; +case $SRCARCH in + x86) BCJ=--x86 ;; powerpc) BCJ=--powerpc ;; ia64) BCJ=--ia64; LZMA2OPTS=pb=4 ;; arm) BCJ=--arm ;; diff --git a/security/commoncap.c b/security/commoncap.c index 0cf4b53480a7..71a166a05975 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -29,6 +29,7 @@ #include <linux/securebits.h> #include <linux/user_namespace.h> #include <linux/binfmts.h> +#include <linux/personality.h> /* * If a non-root user executes a setuid-root binary in @@ -505,6 +506,11 @@ int cap_bprm_set_creds(struct linux_binprm *bprm) } skip: + /* if we have fs caps, clear dangerous personality flags */ + if (!cap_issubset(new->cap_permitted, old->cap_permitted)) + bprm->per_clear |= PER_CLEAR_ON_SETID; + + /* Don't let someone trace a set[ug]id/setpcap binary with the revised * credentials unless they have the appropriate permit */ diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 10056f2f6df3..45c32f074166 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -3640,8 +3640,38 @@ struct security_operations smack_ops = { }; -static __init void init_smack_know_list(void) +static __init void init_smack_known_list(void) { + /* + * Initialize CIPSO locks + */ + spin_lock_init(&smack_known_huh.smk_cipsolock); + spin_lock_init(&smack_known_hat.smk_cipsolock); + spin_lock_init(&smack_known_star.smk_cipsolock); + spin_lock_init(&smack_known_floor.smk_cipsolock); + spin_lock_init(&smack_known_invalid.smk_cipsolock); + spin_lock_init(&smack_known_web.smk_cipsolock); + /* + * Initialize rule list locks + */ + mutex_init(&smack_known_huh.smk_rules_lock); + mutex_init(&smack_known_hat.smk_rules_lock); + mutex_init(&smack_known_floor.smk_rules_lock); + mutex_init(&smack_known_star.smk_rules_lock); + mutex_init(&smack_known_invalid.smk_rules_lock); + mutex_init(&smack_known_web.smk_rules_lock); + /* + * Initialize rule lists + */ + INIT_LIST_HEAD(&smack_known_huh.smk_rules); + INIT_LIST_HEAD(&smack_known_hat.smk_rules); + INIT_LIST_HEAD(&smack_known_star.smk_rules); + INIT_LIST_HEAD(&smack_known_floor.smk_rules); + INIT_LIST_HEAD(&smack_known_invalid.smk_rules); + INIT_LIST_HEAD(&smack_known_web.smk_rules); + /* + * Create the known labels list + */ list_add(&smack_known_huh.list, &smack_known_list); list_add(&smack_known_hat.list, &smack_known_list); list_add(&smack_known_star.list, &smack_known_list); @@ -3676,16 +3706,8 @@ static __init int smack_init(void) cred = (struct cred *) current->cred; cred->security = tsp; - /* initialize the smack_know_list */ - init_smack_know_list(); - /* - * Initialize locks - */ - spin_lock_init(&smack_known_huh.smk_cipsolock); - spin_lock_init(&smack_known_hat.smk_cipsolock); - spin_lock_init(&smack_known_star.smk_cipsolock); - spin_lock_init(&smack_known_floor.smk_cipsolock); - spin_lock_init(&smack_known_invalid.smk_cipsolock); + /* initialize the smack_known_list */ + init_smack_known_list(); /* * Register with LSM diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c index 5c32f36ff706..038811cb7e62 100644 --- a/security/smack/smackfs.c +++ b/security/smack/smackfs.c @@ -1614,20 +1614,6 @@ static int __init init_smk_fs(void) smk_cipso_doi(); smk_unlbl_ambient(NULL); - mutex_init(&smack_known_floor.smk_rules_lock); - mutex_init(&smack_known_hat.smk_rules_lock); - mutex_init(&smack_known_huh.smk_rules_lock); - mutex_init(&smack_known_invalid.smk_rules_lock); - mutex_init(&smack_known_star.smk_rules_lock); - mutex_init(&smack_known_web.smk_rules_lock); - - INIT_LIST_HEAD(&smack_known_floor.smk_rules); - INIT_LIST_HEAD(&smack_known_hat.smk_rules); - INIT_LIST_HEAD(&smack_known_huh.smk_rules); - INIT_LIST_HEAD(&smack_known_invalid.smk_rules); - INIT_LIST_HEAD(&smack_known_star.smk_rules); - INIT_LIST_HEAD(&smack_known_web.smk_rules); - return err; } diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c index 14a286a7bf2b..857586135d18 100644 --- a/sound/core/vmaster.c +++ b/sound/core/vmaster.c @@ -419,6 +419,7 @@ EXPORT_SYMBOL(snd_ctl_make_virtual_master); * snd_ctl_add_vmaster_hook - Add a hook to a vmaster control * @kcontrol: vmaster kctl element * @hook: the hook function + * @private_data: the private_data pointer to be saved * * Adds the given hook to the vmaster control element so that it's called * at each time when the value is changed. diff --git a/sound/last.c b/sound/last.c index bdd0857b8871..7ffc182e0844 100644 --- a/sound/last.c +++ b/sound/last.c @@ -38,4 +38,4 @@ static int __init alsa_sound_last_init(void) return 0; } -__initcall(alsa_sound_last_init); +late_initcall_sync(alsa_sound_last_init); diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index a36488d94aaa..d906c5b74cf0 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -3971,9 +3971,14 @@ static void cx_auto_init_output(struct hda_codec *codec) int i; mute_outputs(codec, spec->multiout.num_dacs, spec->multiout.dac_nids); - for (i = 0; i < cfg->hp_outs; i++) + for (i = 0; i < cfg->hp_outs; i++) { + unsigned int val = PIN_OUT; + if (snd_hda_query_pin_caps(codec, cfg->hp_pins[i]) & + AC_PINCAP_HP_DRV) + val |= AC_PINCTL_HP_EN; snd_hda_codec_write(codec, cfg->hp_pins[i], 0, - AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_HP); + AC_VERB_SET_PIN_WIDGET_CONTROL, val); + } mute_outputs(codec, cfg->hp_outs, cfg->hp_pins); mute_outputs(codec, cfg->line_outs, cfg->line_out_pins); mute_outputs(codec, cfg->speaker_outs, cfg->speaker_pins); @@ -4391,8 +4396,10 @@ static void apply_pin_fixup(struct hda_codec *codec, enum { CXT_PINCFG_LENOVO_X200, + CXT_PINCFG_LENOVO_TP410, }; +/* ThinkPad X200 & co with cxt5051 */ static const struct cxt_pincfg cxt_pincfg_lenovo_x200[] = { { 0x16, 0x042140ff }, /* HP (seq# overridden) */ { 0x17, 0x21a11000 }, /* dock-mic */ @@ -4401,15 +4408,33 @@ static const struct cxt_pincfg cxt_pincfg_lenovo_x200[] = { {} }; +/* ThinkPad 410/420/510/520, X201 & co with cxt5066 */ +static const struct cxt_pincfg cxt_pincfg_lenovo_tp410[] = { + { 0x19, 0x042110ff }, /* HP (seq# overridden) */ + { 0x1a, 0x21a190f0 }, /* dock-mic */ + { 0x1c, 0x212140ff }, /* dock-HP */ + {} +}; + static const struct cxt_pincfg *cxt_pincfg_tbl[] = { [CXT_PINCFG_LENOVO_X200] = cxt_pincfg_lenovo_x200, + [CXT_PINCFG_LENOVO_TP410] = cxt_pincfg_lenovo_tp410, }; -static const struct snd_pci_quirk cxt_fixups[] = { +static const struct snd_pci_quirk cxt5051_fixups[] = { SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo X200", CXT_PINCFG_LENOVO_X200), {} }; +static const struct snd_pci_quirk cxt5066_fixups[] = { + SND_PCI_QUIRK(0x17aa, 0x20f2, "Lenovo T400", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo T410", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x215f, "Lenovo T510", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x21ce, "Lenovo T420", CXT_PINCFG_LENOVO_TP410), + SND_PCI_QUIRK(0x17aa, 0x21cf, "Lenovo T520", CXT_PINCFG_LENOVO_TP410), + {} +}; + /* add "fake" mute amp-caps to DACs on cx5051 so that mixer mute switches * can be created (bko#42825) */ @@ -4446,13 +4471,13 @@ static int patch_conexant_auto(struct hda_codec *codec) case 0x14f15051: add_cx5051_fake_mutes(codec); codec->pin_amp_workaround = 1; + apply_pin_fixup(codec, cxt5051_fixups, cxt_pincfg_tbl); break; default: codec->pin_amp_workaround = 1; + apply_pin_fixup(codec, cxt5066_fixups, cxt_pincfg_tbl); } - apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl); - /* Show mute-led control only on HP laptops * This is a sort of white-list: on HP laptops, EAPD corresponds * only to the mute-LED without actualy amp function. Meanwhile, diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 2508f8109f11..e65e35433055 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -1445,6 +1445,13 @@ enum { ALC_FIXUP_ACT_BUILD, }; +static void alc_apply_pincfgs(struct hda_codec *codec, + const struct alc_pincfg *cfg) +{ + for (; cfg->nid; cfg++) + snd_hda_codec_set_pincfg(codec, cfg->nid, cfg->val); +} + static void alc_apply_fixup(struct hda_codec *codec, int action) { struct alc_spec *spec = codec->spec; @@ -1478,9 +1485,7 @@ static void alc_apply_fixup(struct hda_codec *codec, int action) snd_printdd(KERN_INFO "hda_codec: %s: " "Apply pincfg for %s\n", codec->chip_name, modelname); - for (; cfg->nid; cfg++) - snd_hda_codec_set_pincfg(codec, cfg->nid, - cfg->val); + alc_apply_pincfgs(codec, cfg); break; case ALC_FIXUP_VERBS: if (action != ALC_FIXUP_ACT_PROBE || !fix->v.verbs) @@ -4861,6 +4866,7 @@ enum { ALC260_FIXUP_GPIO1_TOGGLE, ALC260_FIXUP_REPLACER, ALC260_FIXUP_HP_B1900, + ALC260_FIXUP_KN1, }; static void alc260_gpio1_automute(struct hda_codec *codec) @@ -4888,6 +4894,36 @@ static void alc260_fixup_gpio1_toggle(struct hda_codec *codec, } } +static void alc260_fixup_kn1(struct hda_codec *codec, + const struct alc_fixup *fix, int action) +{ + struct alc_spec *spec = codec->spec; + static const struct alc_pincfg pincfgs[] = { + { 0x0f, 0x02214000 }, /* HP/speaker */ + { 0x12, 0x90a60160 }, /* int mic */ + { 0x13, 0x02a19000 }, /* ext mic */ + { 0x18, 0x01446000 }, /* SPDIF out */ + /* disable bogus I/O pins */ + { 0x10, 0x411111f0 }, + { 0x11, 0x411111f0 }, + { 0x14, 0x411111f0 }, + { 0x15, 0x411111f0 }, + { 0x16, 0x411111f0 }, + { 0x17, 0x411111f0 }, + { 0x19, 0x411111f0 }, + { } + }; + + switch (action) { + case ALC_FIXUP_ACT_PRE_PROBE: + alc_apply_pincfgs(codec, pincfgs); + break; + case ALC_FIXUP_ACT_PROBE: + spec->init_amp = ALC_INIT_NONE; + break; + } +} + static const struct alc_fixup alc260_fixups[] = { [ALC260_FIXUP_HP_DC5750] = { .type = ALC_FIXUP_PINS, @@ -4938,7 +4974,11 @@ static const struct alc_fixup alc260_fixups[] = { .v.func = alc260_fixup_gpio1_toggle, .chained = true, .chain_id = ALC260_FIXUP_COEF, - } + }, + [ALC260_FIXUP_KN1] = { + .type = ALC_FIXUP_FUNC, + .v.func = alc260_fixup_kn1, + }, }; static const struct snd_pci_quirk alc260_fixup_tbl[] = { @@ -4948,6 +4988,7 @@ static const struct snd_pci_quirk alc260_fixup_tbl[] = { SND_PCI_QUIRK(0x103c, 0x280a, "HP dc5750", ALC260_FIXUP_HP_DC5750), SND_PCI_QUIRK(0x103c, 0x30ba, "HP Presario B1900", ALC260_FIXUP_HP_B1900), SND_PCI_QUIRK(0x1509, 0x4540, "Favorit 100XS", ALC260_FIXUP_GPIO1), + SND_PCI_QUIRK(0x152d, 0x0729, "Quanta KN1", ALC260_FIXUP_KN1), SND_PCI_QUIRK(0x161f, 0x2057, "Replacer 672V", ALC260_FIXUP_REPLACER), SND_PCI_QUIRK(0x1631, 0xc017, "PB V7900", ALC260_FIXUP_COEF), {} diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 33a9946b492c..4742cac26aa9 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -5063,12 +5063,11 @@ static void stac92xx_update_led_status(struct hda_codec *codec, int enabled) if (spec->gpio_led_polarity) muted = !muted; - /*polarity defines *not* muted state level*/ if (!spec->vref_mute_led_nid) { if (muted) - spec->gpio_data &= ~spec->gpio_led; /* orange */ + spec->gpio_data |= spec->gpio_led; else - spec->gpio_data |= spec->gpio_led; /* white */ + spec->gpio_data &= ~spec->gpio_led; stac_gpio_set(codec, spec->gpio_mask, spec->gpio_dir, spec->gpio_data); } else { diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 6508e8b790bb..59d8efaa17e9 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -57,7 +57,7 @@ config SND_SOC_ALL_CODECS select SND_SOC_TPA6130A2 if I2C select SND_SOC_TLV320DAC33 if I2C select SND_SOC_TWL4030 if TWL4030_CORE - select SND_SOC_TWL6040 if TWL4030_CORE + select SND_SOC_TWL6040 if TWL6040_CORE select SND_SOC_UDA134X select SND_SOC_UDA1380 if I2C select SND_SOC_WL1273 if MFD_WL1273_CORE @@ -276,7 +276,6 @@ config SND_SOC_TWL4030 tristate config SND_SOC_TWL6040 - select TWL6040_CORE tristate config SND_SOC_UDA134X diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c index 2d8c6b825e57..dc7509b9d53a 100644 --- a/sound/soc/codecs/twl6040.c +++ b/sound/soc/codecs/twl6040.c @@ -26,7 +26,6 @@ #include <linux/pm.h> #include <linux/platform_device.h> #include <linux/slab.h> -#include <linux/i2c/twl.h> #include <linux/mfd/twl6040.h> #include <sound/core.h> @@ -1528,7 +1527,7 @@ static int twl6040_resume(struct snd_soc_codec *codec) static int twl6040_probe(struct snd_soc_codec *codec) { struct twl6040_data *priv; - struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev); + struct twl6040_codec_data *pdata = dev_get_platdata(codec->dev); struct platform_device *pdev = container_of(codec->dev, struct platform_device, dev); int ret = 0; diff --git a/sound/soc/omap/Kconfig b/sound/soc/omap/Kconfig index e00dd0b1139c..deafbfaacdbf 100644 --- a/sound/soc/omap/Kconfig +++ b/sound/soc/omap/Kconfig @@ -97,7 +97,7 @@ config SND_OMAP_SOC_SDP3430 config SND_OMAP_SOC_OMAP_ABE_TWL6040 tristate "SoC Audio support for OMAP boards using ABE and twl6040 codec" - depends on TWL4030_CORE && SND_OMAP_SOC && ARCH_OMAP4 + depends on TWL6040_CORE && SND_OMAP_SOC && ARCH_OMAP4 select SND_OMAP_SOC_DMIC select SND_OMAP_SOC_MCPDM select SND_SOC_TWL6040 diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore index 416684be0ad3..26b823b61aa1 100644 --- a/tools/perf/.gitignore +++ b/tools/perf/.gitignore @@ -19,3 +19,5 @@ TAGS cscope* config.mak config.mak.autogen +*-bison.* +*-flex.* diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 820371f10d1b..03059e75665a 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -237,21 +237,20 @@ export PERL_PATH FLEX = $(CROSS_COMPILE)flex BISON= $(CROSS_COMPILE)bison -event-parser: - $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c +$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c -$(OUTPUT)util/parse-events-flex.c: event-parser -$(OUTPUT)util/parse-events-bison.c: event-parser +$(OUTPUT)util/parse-events-bison.c: util/parse-events.y + $(QUIET_BISON)$(BISON) -v util/parse-events.y -d -o $(OUTPUT)util/parse-events-bison.c -pmu-parser: - $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c +$(OUTPUT)util/pmu-flex.c: util/pmu.l $(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c -$(OUTPUT)util/pmu-flex.c: pmu-parser -$(OUTPUT)util/pmu-bison.c: pmu-parser +$(OUTPUT)util/pmu-bison.c: util/pmu.y + $(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -$(OUTPUT)util/parse-events.o: event-parser pmu-parser +$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c +$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c LIB_FILE=$(OUTPUT)libperf.a @@ -527,7 +526,7 @@ else endif ifdef NO_GTK2 - BASIC_CFLAGS += -DNO_GTK2 + BASIC_CFLAGS += -DNO_GTK2_SUPPORT else FLAGS_GTK2=$(ALL_CFLAGS) $(ALL_LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0) ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2)),y) @@ -852,8 +851,6 @@ help: @echo ' html - make html documentation' @echo ' info - make GNU info documentation (access with info <foo>)' @echo ' pdf - make pdf documentation' - @echo ' event-parser - make event parser code' - @echo ' pmu-parser - make pmu format parser code' @echo ' TAGS - use etags to make tag information for source browsing' @echo ' tags - use ctags to make tag information for source browsing' @echo ' cscope - use cscope to make interactive browsing database' diff --git a/tools/perf/perf-archive.sh b/tools/perf/perf-archive.sh index 677e59d62a8d..95b6f8b6177a 100644 --- a/tools/perf/perf-archive.sh +++ b/tools/perf/perf-archive.sh @@ -29,13 +29,14 @@ if [ ! -s $BUILDIDS ] ; then fi MANIFEST=$(mktemp /tmp/perf-archive-manifest.XXXXXX) +PERF_BUILDID_LINKDIR=$(readlink -f $PERF_BUILDID_DIR)/ cut -d ' ' -f 1 $BUILDIDS | \ while read build_id ; do linkname=$PERF_BUILDID_DIR.build-id/${build_id:0:2}/${build_id:2} filename=$(readlink -f $linkname) echo ${linkname#$PERF_BUILDID_DIR} >> $MANIFEST - echo ${filename#$PERF_BUILDID_DIR} >> $MANIFEST + echo ${filename#$PERF_BUILDID_LINKDIR} >> $MANIFEST done tar cfj $PERF_DATA.tar.bz2 -C $PERF_BUILDID_DIR -T $MANIFEST diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 00923cda4d9c..1efd3bee6336 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -876,11 +876,11 @@ static int perf_session_deliver_event(struct perf_session *session, dump_sample(session, event, sample); if (evsel == NULL) { ++session->hists.stats.nr_unknown_id; - return -1; + return 0; } if (machine == NULL) { ++session->hists.stats.nr_unprocessable_samples; - return -1; + return 0; } return tool->sample(tool, event, sample, evsel, machine); case PERF_RECORD_MMAP: diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index a457d2138f49..e9fff9830bf0 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -240,9 +240,13 @@ int kvm_iommu_map_guest(struct kvm *kvm) return -ENODEV; } + mutex_lock(&kvm->slots_lock); + kvm->arch.iommu_domain = iommu_domain_alloc(&pci_bus_type); - if (!kvm->arch.iommu_domain) - return -ENOMEM; + if (!kvm->arch.iommu_domain) { + r = -ENOMEM; + goto out_unlock; + } if (!allow_unsafe_assigned_interrupts && !iommu_domain_has_cap(kvm->arch.iommu_domain, @@ -253,17 +257,16 @@ int kvm_iommu_map_guest(struct kvm *kvm) " module option.\n", __func__); iommu_domain_free(kvm->arch.iommu_domain); kvm->arch.iommu_domain = NULL; - return -EPERM; + r = -EPERM; + goto out_unlock; } r = kvm_iommu_map_memslots(kvm); if (r) - goto out_unmap; - - return 0; + kvm_iommu_unmap_memslots(kvm); -out_unmap: - kvm_iommu_unmap_memslots(kvm); +out_unlock: + mutex_unlock(&kvm->slots_lock); return r; } @@ -310,6 +313,11 @@ static void kvm_iommu_put_pages(struct kvm *kvm, } } +void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot) +{ + kvm_iommu_put_pages(kvm, slot->base_gfn, slot->npages); +} + static int kvm_iommu_unmap_memslots(struct kvm *kvm) { int idx; @@ -320,7 +328,7 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm) slots = kvm_memslots(kvm); kvm_for_each_memslot(memslot, slots) - kvm_iommu_put_pages(kvm, memslot->base_gfn, memslot->npages); + kvm_iommu_unmap_pages(kvm, memslot); srcu_read_unlock(&kvm->srcu, idx); @@ -335,7 +343,11 @@ int kvm_iommu_unmap_guest(struct kvm *kvm) if (!domain) return 0; + mutex_lock(&kvm->slots_lock); kvm_iommu_unmap_memslots(kvm); + kvm->arch.iommu_domain = NULL; + mutex_unlock(&kvm->slots_lock); + iommu_domain_free(domain); return 0; } diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 42b73930a6de..9739b533ca2e 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -808,12 +808,13 @@ int __kvm_set_memory_region(struct kvm *kvm, if (r) goto out_free; - /* map the pages in iommu page table */ + /* map/unmap the pages in iommu page table */ if (npages) { r = kvm_iommu_map_pages(kvm, &new); if (r) goto out_free; - } + } else + kvm_iommu_unmap_pages(kvm, &old); r = -ENOMEM; slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots), |