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* pinctrl: sh-pfc: Rename .gpio_data[] to .pinmux_data[]Geert Uytterhoeven2015-10-2024-53/+53
| | | | | | | | | | | The sh_pfc_soc_info.gpio_data[] array contains not only GPIO data, but also various other pinmux-related data (functions and marks). Every single driver already calls its local array pinmux_data[]. Hence rename the sh_pfc_soc_info member to "pinmux_data". Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* pinctrl: sh-pfc: r8a7778: Add bias (pull-up) pinconf supportUlrich Hecht2015-10-201-21/+242
| | | | | | | | | | | On this SoC there is no simple mapping of GP pins to pull-up register bits, so we need a table. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: Add macros defining GP ports with config flagsUlrich Hecht2015-10-201-22/+25
| | | | | | | | | | PORT_GP_CFG_1 and PORT_GP_CFG_32 work like their non-CFG counterparts but accept an extra argument with config flags. Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7794: Add VIN pin groupsKoji Matsuoka2015-10-201-0/+184
| | | | | | | | | | | | | Add VIN0/1 pin groups to R8A7794 PFC driver. Sergei: rebased, renamed, added changelog, gathered 12 VIN1 data pins into a single pin group, added "vin1_data10" pin group, used 'union vin_data' and VIN_DATA_PIN_GROUP() macro to describe VIN1 pins, reversed the order of the VIN1 pin groups, removed unneeded empty lines, fixed VIN1 separator comment. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a779[01]: Move 'union vin_data' to shared header fileSergei Shtylyov2015-10-203-37/+23
| | | | | | | | | | | R8A7790/1 PFC drivers use almost identical 'union vin_data' and completely identical VIN_DATA_PIN_GROUP() macro; we thus can move them into the shared header file... Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7795: add EtherAVB supportTakeshi Kihara2015-10-021-0/+87
| | | | | | | | | | | | | | | This patch adds EthernetAVB Based on a much lager patch by Takeshi Kihara which was originally posted by Kuninori Morimoto. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> [horms: extracted from a larger patch; corrected swapped {MATCH,CAPTURE_A} pins] Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7795: add Audio SSI pin supportKuninori Morimoto2015-10-021-0/+231
| | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7795: add Audio clock pin supportKuninori Morimoto2015-10-021-0/+160
| | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7795: add I2C pin supportKuninori Morimoto2015-10-021-0/+77
| | | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7795: add SCIFx supportGeert Uytterhoeven2015-10-021-0/+257
| | | | | | | | | | This patch adds SCIF0/1/2/3/4/5 Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> [Morimoto-san: Updated] Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl: sh-pfc: Initial R8A7795 PFC supportTakeshi Kihara2015-10-026-0/+2019
| | | | | | | | | | Add PFC base support for the R8A7795 SoC. Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com> [Morimoto-san: updated] Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: remove unused PINMUX_IPSR_MODSEL_DATA()Kuninori Morimoto2015-10-021-2/+0
| | | | | | | | | | Now, all PINMUX_IPSR_MODSEL_DATA() are replased to PINMUX_IPSR_MSEL() Let's remove unused PINMUX_IPSR_MODSEL_DATA() Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7779: use PINMUX_IPSR_MSEL()Kuninori Morimoto2015-10-021-210/+210
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are same. Current PFC driver is very difficult to read, because macro names are using different length. PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can use PINMUX_IPSR_MSEL() instead of PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7790: use PINMUX_IPSR_MSEL()Kuninori Morimoto2015-10-021-519/+519
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are same. Current PFC driver is very difficult to read, because macro names are using different length. PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can use PINMUX_IPSR_MSEL() instead of PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7791: use PINMUX_IPSR_MSEL()Kuninori Morimoto2015-10-021-538/+538
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are same. Current PFC driver is very difficult to read, because macro names are using different length. PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can use PINMUX_IPSR_MSEL() instead of PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: r8a7794: use PINMUX_IPSR_MSEL()Kuninori Morimoto2015-10-021-414/+414
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are same. Current PFC driver is very difficult to read, because macro names are using different length. PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can use PINMUX_IPSR_MSEL() instead of PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: sh7734: use PINMUX_IPSR_MSEL()Kuninori Morimoto2015-10-021-389/+389
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Now, PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are same. Current PFC driver is very difficult to read, because macro names are using different length. PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can use PINMUX_IPSR_MSEL() instead of PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: modify PINMUX_IPSR_MSEL() macro orderKuninori Morimoto2015-10-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The difference between PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() are FN_xxx order, and PINMUX_IPSR_MSEL() is used only from r8a7778. Now it r8a7778 works correctly with PINMUX_IPSR_MODSEL_DATA() order. This means we can merge PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA(). Current PFC driver is very difficult to read, because macro names are using different length. Especially PINMUX_IPSR_MODSEL_DATA() is well used macro PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) PINMUX_IPSR_MODSEL_DATA(ipsr, ...) It can be readable if we can merge PINMUX_IPSR_MSEL() and PINMUX_IPSR_MODSEL_DATA() PINMUX_IPSR_NOGP(ispr, ...) PINMUX_IPSR_DATA(ipsr, ...) PINMUX_IPSR_NOGM(ispr, ...) PINMUX_IPSR_NOFN(ipsr, ...) PINMUX_IPSR_MSEL(ipsr, ...) Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: Remove hardcoded IRQ numbersLaurent Pinchart2015-10-025-134/+125
| | | | | | | | | Now that all ARM-based Renesas SoCs use multiplatform kernels only the hardcoded IRQ numbers can be dropped as they're dynamically allocated. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
* pinctrl: sh-pfc: Get rid of CONFIG_ARCH_SHMOBILE_LEGACYGeert Uytterhoeven2015-10-021-22/+19
| | | | | | | | | | | | Shmobile is all multiplatform these days, so get rid of the reference to CONFIG_ARCH_SHMOBILE_LEGACY. Move the legacy code to do the non-DT mapping between GPIOs and pins inside the existing #ifdef CONFIG_SUPERH section. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl: sh-pfc: r8a7791/r8a7793: Correct SCIFB1_B SCK MOD_SEL valueGeert Uytterhoeven2015-10-021-1/+1
| | | | | | | | | | | | | | | When using serial port SCIFB1_B, transmit works, but nothing is received. Receive fails because the SCIFB1_SCK_B settings configure the wrong value for the sel_scifb1 field in the Module Select Register (MOD_SEL), due to an ambiguity in the R-Car M2-W and M2-N datasheets. Tested on r8a7791/koelsch using pins 53 (TXD) and 72 (RXD) on EXIO Connector A. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl: sh-pfc: r8a7794: Remove bogus SCIF0 SCK pin dataGeert Uytterhoeven2015-10-021-18/+0
| | | | | | | | | | SCIF0 on R-Car E2 does not have an SCK pin. "SCIF_CLK" is the (H)SCIF baud rate generation clock pin, which is not yet supported. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl: sh-pfc: Confine legacy function GPIOs to SHGeert Uytterhoeven2015-10-023-1/+10
| | | | | | | | | | | Legacy function GPIOs are no longer used on ARM since commit a27c5cd1a08cc95c ("sh-pfc: sh73a0: Remove function GPIOs"). Extract its setup code into a separate function, and make all function GPIO related code and data depend on CONFIG_SUPERH. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* pinctrl: sh-pfc: Remove empty gpio_function_free()Geert Uytterhoeven2015-10-021-5/+0
| | | | | | | | gpio_chip.free() is optional, and can just be left unimplemented. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* pinctrl: sh-pfc: Stop calling gpiochip_add_pin_range() on DT platformsGeert Uytterhoeven2015-10-021-15/+22
| | | | | | | | | | | | | On platforms where the PFC/GPIO controller is instantiated from DT, the mapping between GPIOs and pins is set up using the "gpio-ranges" property in DT. Hence stop setting up the mapping from C code on DT platforms. This code is still used for SH or ARM-legacy platforms. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* Linux 4.3-rc1v4.3-rc1Linus Torvalds2015-09-121-2/+2
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* Merge tag 'cris-for-4.3' of ↵Linus Torvalds2015-09-1250-421/+220
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris Pull CRIS updates from Jesper Nilsson: "Mostly removal of old cruft of which we can use a generic version, or fixes for code not commonly run in the cris port, but also additions to enable some good debug" * tag 'cris-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jesper/cris: (25 commits) CRISv10: delete unused lib/dmacopy.c CRISv10: delete unused lib/old_checksum.c CRIS: fix switch_mm() lockdep splat CRISv32: enable LOCKDEP_SUPPORT CRIS: add STACKTRACE_SUPPORT CRISv32: annotate irq enable in idle loop CRISv32: add support for irqflags tracing CRIS: UAPI: use generic types.h CRIS: UAPI: use generic shmbuf.h CRIS: UAPI: use generic msgbuf.h CRIS: UAPI: use generic socket.h CRIS: UAPI: use generic sembuf.h CRIS: UAPI: use generic sockios.h CRIS: UAPI: use generic auxvec.h CRIS: UAPI: use generic headers via Kbuild CRIS: UAPI: fix elf.h export CRIS: don't make asm/elf.h depend on asm/user.h CRIS: UAPI: fix ptrace.h CRISv32: Squash compile warnings for axisflashmap CRISv32: Add GPIO driver to the default configs ...
| * CRISv10: delete unused lib/dmacopy.cRabin Vincent2015-09-051-42/+0
| | | | | | | | | | | | | | This file is never built. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv10: delete unused lib/old_checksum.cRabin Vincent2015-09-051-86/+0
| | | | | | | | | | | | | | This file is never built. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: fix switch_mm() lockdep splatRabin Vincent2015-09-051-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With lockdep support implemented on CRISv32, we get the following splat. switch_mm() can be called both from the scheduler() (with interrupts disabled) and from flush_old_exec (via activate_mm()), with interrupts enabled. Fix it by disabling interrupts in activate_mm(), similar to powerpc and hexagon. t====================================================== [ INFO: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected ] 3.19.0-08802-g20bc9f1-dirty #323 Not tainted ------------------------------------------------------ init/1 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: (mmu_context_lock){+.+...}, at: [<c0009290>] switch_mm+0x22/0xc6 and this task is already holding: (&rq->lock){-.-.-.}, at: [<c01a0756>] __schedule+0x5e/0x648 which would create a new lock dependency: (&rq->lock){-.-.-.} -> (mmu_context_lock){+.+...} but this new dependency connects a HARDIRQ-irq-safe lock: (&rq->lock){-.-.-.} ... which became HARDIRQ-irq-safe at: [<c002b03c>] scheduler_tick+0x28/0x5e [<c0007c6c>] timer_interrupt+0x4e/0x6a [<c0043ac4>] handle_irq_event_percpu+0x54/0x13c [<c004343c>] generic_handle_irq+0x2a/0x36 to a HARDIRQ-irq-unsafe lock: (mmu_context_lock){+.+...} ... which became HARDIRQ-irq-unsafe at: ... [<c0039e60>] __lock_acquire+0x8f8/0x1d9c [<c0009290>] switch_mm+0x22/0xc6 [<c009c260>] flush_old_exec+0x500/0x5d4 [<c00da4c6>] load_elf_phdrs+0x7a/0x84 [<c00dbdb0>] load_elf_binary+0x21c/0x13b4 [<c009cdb6>] do_execve+0x22/0x2c [<c001dcf2>] ____call_usermodehelper+0x0/0x154 [<c000581e>] ret_from_kernel_thread+0xe/0x14 other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(mmu_context_lock); local_irq_disable(); lock(&rq->lock); lock(mmu_context_lock); <Interrupt> lock(&rq->lock); *** DEADLOCK *** 1 lock held by init/1: #0: (&rq->lock){-.-.-.}, at: [<c01a0756>] __schedule+0x5e/0x648 Call Trace: [<c019fe9e>] printk+0x0/0x4e [<c00368f8>] print_shortest_lock_dependencies+0x0/0x15c [<c0048628>] print_stack_trace+0x0/0x88 [<c0038912>] __lock_is_held+0x3e/0x5e [<c003b894>] lock_acquire+0x8a/0xcc [<c01a50c4>] _raw_spin_lock+0x44/0x7a [<c0009290>] switch_mm+0x22/0xc6 [<c01a06f8>] __schedule+0x0/0x648 [<c01a0d76>] schedule+0x36/0x7c [<c0037d04>] trace_hardirqs_on+0x0/0x1e [<c0004e18>] do_work_pending+0x30/0xd4 [<c000591a>] _work_pending+0xe/0x12 Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: enable LOCKDEP_SUPPORTRabin Vincent2015-09-051-0/+4
| | | | | | | | | | | | | | | | Now that we have stack tracing and irq flags tracing support, we can also enable lockdep support Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: add STACKTRACE_SUPPORTRabin Vincent2015-09-054-0/+88
| | | | | | | | | | | | | | | | | | | | Add stacktrace support, which is required for lockdep and tracing. The stack tracing simply looks at all kernel text symbols found on the stack, similar to the trap stack dumping code, which can also be converted to use this. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: annotate irq enable in idle loopRabin Vincent2015-09-051-2/+2
| | | | | | | | | | | | | | | | Use a call to local_irq_enable() instead of incline asm so that the irqsoff latency tracer knows that interrupts are enabled here. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: add support for irqflags tracingRabin Vincent2015-09-053-1/+20
| | | | | | | | | | | | | | | | Add support irqflags tracing, which is required for things like lockdep and ftrace. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic types.hRabin Vincent2015-09-053-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS' types.h is functionally identical to the asm-generic version. Effective diff: +#ifndef _ASM_GENERIC_TYPES_H +#define _ASM_GENERIC_TYPES_H + #include <asm-generic/int-ll64.h> + +#endif Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic shmbuf.hRabin Vincent2015-09-052-42/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS' shmbuf.h is equivalent to the asm-generic verison. Effective diff: -#ifndef _CRIS_SHMBUF_H -#define _CRIS_SHMBUF_H +#ifndef __ASM_GENERIC_SHMBUF_H +#define __ASM_GENERIC_SHMBUF_H + +#include <asm/bitsperlong.h> struct ipc64_perm shm_perm; size_t shm_segsz; __kernel_time_t shm_atime; +#if __BITS_PER_LONG != 64 unsigned long __unused1; +#endif __kernel_time_t shm_dtime; +#if __BITS_PER_LONG != 64 unsigned long __unused2; +#endif __kernel_time_t shm_ctime; +#if __BITS_PER_LONG != 64 unsigned long __unused3; +#endif __kernel_pid_t shm_cpid; __kernel_pid_t shm_lpid; - unsigned long shm_nattch; - unsigned long __unused4; - unsigned long __unused5; + __kernel_ulong_t shm_nattch; + __kernel_ulong_t __unused4; + __kernel_ulong_t __unused5; }; struct shminfo64 { - unsigned long shmmax; - unsigned long shmmin; - unsigned long shmmni; - unsigned long shmseg; - unsigned long shmall; - unsigned long __unused1; - unsigned long __unused2; - unsigned long __unused3; - unsigned long __unused4; + __kernel_ulong_t shmmax; + __kernel_ulong_t shmmin; + __kernel_ulong_t shmmni; + __kernel_ulong_t shmseg; + __kernel_ulong_t shmall; + __kernel_ulong_t __unused1; + __kernel_ulong_t __unused2; + __kernel_ulong_t __unused3; + __kernel_ulong_t __unused4; }; #endif Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic msgbuf.hRabin Vincent2015-09-052-33/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS' msgbuf.h is equivalent to the asm-generic version. Effective diff: -#ifndef _CRIS_MSGBUF_H -#define _CRIS_MSGBUF_H - - +#ifndef __ASM_GENERIC_MSGBUF_H +#define __ASM_GENERIC_MSGBUF_H +#include <asm/bitsperlong.h> struct msqid64_ds { struct ipc64_perm msg_perm; __kernel_time_t msg_stime; +#if __BITS_PER_LONG != 64 unsigned long __unused1; +#endif __kernel_time_t msg_rtime; +#if __BITS_PER_LONG != 64 unsigned long __unused2; +#endif __kernel_time_t msg_ctime; +#if __BITS_PER_LONG != 64 unsigned long __unused3; - unsigned long msg_cbytes; - unsigned long msg_qnum; - unsigned long msg_qbytes; +#endif + __kernel_ulong_t msg_cbytes; + __kernel_ulong_t msg_qnum; + __kernel_ulong_t msg_qbytes; __kernel_pid_t msg_lspid; __kernel_pid_t msg_lrpid; - unsigned long __unused4; - unsigned long __unused5; + __kernel_ulong_t __unused4; + __kernel_ulong_t __unused5; }; #endif Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic socket.hRabin Vincent2015-09-052-92/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS' socket.h is equivalent to the asm-generic version. Effective diff: -#ifndef _ASM_SOCKET_H -#define _ASM_SOCKET_H - - +#ifndef __ASM_GENERIC_SOCKET_H +#define __ASM_GENERIC_SOCKET_H #include <asm/sockios.h> #define SO_LINGER 13 #define SO_BSDCOMPAT 14 #define SO_REUSEPORT 15 +#ifndef SO_PASSCRED #define SO_PASSCRED 16 #define SO_PEERCRED 17 #define SO_RCVLOWAT 18 #define SO_SNDLOWAT 19 #define SO_RCVTIMEO 20 #define SO_SNDTIMEO 21 +#endif #define SO_SECURITY_AUTHENTICATION 22 Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic sembuf.hRabin Vincent2015-09-052-25/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS's sembuf.h is equivalent to the asm-generic version. Effective diff: -#ifndef _CRIS_SEMBUF_H -#define _CRIS_SEMBUF_H +#ifndef __ASM_GENERIC_SEMBUF_H +#define __ASM_GENERIC_SEMBUF_H +#include <asm/bitsperlong.h> struct semid64_ds { struct ipc64_perm sem_perm; __kernel_time_t sem_otime; +#if __BITS_PER_LONG != 64 unsigned long __unused1; +#endif __kernel_time_t sem_ctime; +#if __BITS_PER_LONG != 64 unsigned long __unused2; +#endif unsigned long sem_nsems; unsigned long __unused3; unsigned long __unused4; Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic sockios.hRabin Vincent2015-09-052-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS' sockios.h is equivalent to the asm-generic version. Effective diff: -#ifndef __ARCH_CRIS_SOCKIOS__ -#define __ARCH_CRIS_SOCKIOS__ +#ifndef __ASM_GENERIC_SOCKIOS_H +#define __ASM_GENERIC_SOCKIOS_H Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic auxvec.hRabin Vincent2015-09-052-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CRIS's auxvec.h is empty just like the asm-generic version. Effective diff: -#ifndef __ASMCRIS_AUXVEC_H -#define __ASMCRIS_AUXVEC_H +#ifndef __ASM_GENERIC_AUXVEC_H +#define __ASM_GENERIC_AUXVEC_H + Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: use generic headers via KbuildRabin Vincent2015-09-0512-31/+10
| | | | | | | | | | | | | | Use Kbuild magic to include the generic headers. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: fix elf.h exportRabin Vincent2015-09-054-1/+8
| | | | | | | | | | | | | | | | | | CRIS userspace (uClibc for one) expects asm/elf.h to be exported but this header appears to have gone missing at some point. Move it to uapi/ and export it. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: don't make asm/elf.h depend on asm/user.hRabin Vincent2015-09-053-8/+7
| | | | | | | | | | | | | | | | We're going to export asm/elf.h; remove its dependencies on the non-exported asm/user.h and the unused asm/system.h include. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: UAPI: fix ptrace.hRabin Vincent2015-09-056-3/+8
| | | | | | | | | | | | | | | | | | | | The exported ptrace.h header on CRIS references an "arch" directory which does not exist. Fix this by having the variants in the same directory and including them conditionally, similar to other architectures. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: Squash compile warnings for axisflashmapJesper Nilsson2015-09-051-4/+5
| | | | | | | | Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: Add GPIO driver to the default configsJesper Nilsson2015-09-054-14/+12
| | | | | | | | | | | | | | | | | | | | | | Fix a number of small issues visible when GPIO is enabled: - Correct missing default for !ETRAXFS in Kconfig - Remove information on number of bits for some Kconfigs related to the GPIO, they are different in ETRAX FS and ARTPEC-3 - Fix compile warning in ARTPEC-3 GPIO driver Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRISv32: ETRAX FS: Squash warnings in pinmux driverJesper Nilsson2015-09-051-2/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | Squash the followng warnings arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_alloc_fixed': arch/cris/arch-v32/mach-fs/pinmux.c:104:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] arch/cris/arch-v32/mach-fs/pinmux.c: In function 'crisv32_pinmux_dealloc_fixed': arch/cris/arch-v32/mach-fs/pinmux.c:238:2: warning: ISO C90 forbids mixed declarations and code [-Wdeclaration-after-statement] arch/cris/arch-v32/mach-fs/pinmux.c: In function '__crisv32_pinmux_alloc': arch/cris/arch-v32/mach-fs/pinmux.c:49:1: warning: control reaches end of non-void function [-Wreturn-type] Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
| * CRIS: Wire up missing syscallsChen Gang2015-09-054-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The related warnings: CALL scripts/checksyscalls.sh <stdin>:1229:2: warning: #warning syscall sched_setattr not implemented [-Wcpp] <stdin>:1232:2: warning: #warning syscall sched_getattr not implemented [-Wcpp] <stdin>:1235:2: warning: #warning syscall renameat2 not implemented [-Wcpp] <stdin>:1238:2: warning: #warning syscall seccomp not implemented [-Wcpp] <stdin>:1241:2: warning: #warning syscall getrandom not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1247:2: warning: #warning syscall bpf not implemented [-Wcpp] <stdin>:1250:2: warning: #warning syscall execveat not implemented [-Wcpp] Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by: Jesper Nilsson <jespern@axis.com>
| * CRISv32: allow CONFIG_DEBUG_BUGVERBOSERabin Vincent2015-09-051-0/+1
| | | | | | | | | | | | | | | | Support for verbose BUG reporting already exists, but the HAVE flag that allows the option to be enabled is missing. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Jesper Nilsson <jespern@axis.com>
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