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* lguest: populate initial_page_tableRusty Russell2010-12-163-5/+107
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Two x86 patches broke lguest: 1) v2.6.35-492-g72d7c3b, which changed x86 to use the memblock allocator. In lguest, the host places linear page tables at the top of mem, which used to be enough to get us up to the swapper_pg_dir page tables. With the first patch, the direct mapping tables used that memory: Before: kernel direct mapping tables up to 4000000 @ 7000-1a000 After: kernel direct mapping tables up to 4000000 @ 3fed000-4000000 I initially fixed this by lying about the amount of memory we had, so the kernel wouldn't blatt the lguest boot pagetables (yuk!), but then... 2) v2.6.36-rc8-54-gb40827f, which made x86 boot use initial_page_table. This was initialized in a part of head_32.S which isn't executed by lguest; it is then copied into swapper_pg_dir. So we have to initialize it; and anyway we switch to it before we blatt the old tables, so that fixes the previous damage as well. For the moment, I cut & pasted the code into lguest's boot code, but next merge window I will merge them. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> To: x86@kernel.org
* lguest: restore boot speedRusty Russell2010-12-161-4/+7
| | | | | | | | | | | | | | | | lguest is dumb and drops *all* the pagetables for set_pte (which is only used for kernel mapping manipulation, so it's OK without highmem). But it's used a lot in boot, too. As a guest optimization, we suppressed this flushing until the first page switch. Now we have initial_page_table, that happens much earlier, so extend the heuristic to wait until we switch to something other than the swapper_pg_dir or initial_page_table. As measured on my laptop under kvm, this dropped the time-to-mount-root from 48 seconds to 4.3 seconds. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* lguest: fix crash lguest_time_initRusty Russell2010-12-161-1/+1
| | | | | | | | | fe25c7fc2e "x86: lguest: Convert to new irq chip functions" converted enable_lguest_irq() to take a struct irq_data *, but didn't fix the one internal caller. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> To: x86@kernel.org
* crypto: ghash-intel - ghash-clmulni-intel_glue needs err.hRandy Dunlap2010-12-151-0/+1
| | | | | | | | | | Add missing header file: arch/x86/crypto/ghash-clmulni-intel_glue.c:256: error: implicit declaration of function 'IS_ERR' arch/x86/crypto/ghash-clmulni-intel_glue.c:257: error: implicit declaration of function 'PTR_ERR' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds2010-12-143-2/+5
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: wire up accept4 syscall (non-multiplexed path) sh: Enable deprecated IRQ chip APIs for MFD and GPIOLIB drivers.
| * sh: wire up accept4 syscall (non-multiplexed path)Carmelo AMOROSO2010-12-142-1/+3
| | | | | | | | | | Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Enable deprecated IRQ chip APIs for MFD and GPIOLIB drivers.Paul Mundt2010-12-131-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | There are still quite a number of MFD and GPIO expander drivers that are using the old irq_chip APIs that haven't had a chance to update during the .37 cycle, resulting in allyes/modconfig errors on some configurations. Mark Brown has done most of the legwork to get these fixed up in .38, so this should just be a .37 stop-gap that we can drop at the end of the .38 merge window. Reported-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds2010-12-148-36/+79
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP2: PRCM: fix some SHIFT macros that were actually bitmasks OMAP2+: PM/serial: fix console semaphore acquire during suspend OMAP1: SRAM: fix size for OMAP1611 SoCs arm: omap2: io: fix clk_get() error check arm: plat-omap: counter_32k: use IS_ERR() instead of NULL check omap: nand: remove hardware ECC as default omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARD omap: PM debug: fix wake-on-timer debugfs dependency
| * | OMAP2: PRCM: fix some SHIFT macros that were actually bitmasksPaul Walmsley2010-12-101-5/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After Charu's GPIO hwmod patches, GPIO initialization on N800 emits the following messages for all GPIO banks: omap_hwmod: gpio1: cannot be enabled (3) This is due to OMAP24XX_ST_GPIOS_SHIFT being defined as a bitmask. Fix this and also fix two other macros that had the same problem. Thanks to Tony Lindgren <tony@atomide.com> for originally reporting this bug. Signed-off-by: Paul Walmsley <paul@pwsan.com Cc: Charulatha Varadarajan <charu@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | OMAP2+: PM/serial: fix console semaphore acquire during suspendKevin Hilman2010-12-092-10/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 0d8e2d0dad98a693bad88aea6876ac8b94ad95c6 (OMAP2+: PM/serial: hold console semaphore while OMAP UARTs are disabled) added use of the console semaphore to protect UARTs from being accessed after disabled during idle, but this causes problems in suspend. During suspend, the console semaphore is acquired by the console suspend method (console_suspend()) so the try_acquire_console_sem() will always fail and suspend will be aborted. To fix, introduce a check so the console semaphore is only attempted during idle, and not during suspend. Also use the same check so that the console semaphore is not prematurely released during resume. Thanks to Paul Walmsley for suggesting adding the same check during resume. Cc: Paul Walmsley <paul@pwsan.com> Tested-by: Jean Pihet <j-pihet@ti.com> Tested-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | OMAP1: SRAM: fix size for OMAP1611 SoCsKevin Hilman2010-12-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kernel was failing to boot on omap1611 based OSK boards due to mis-configured SRAM size. Existing code was using a hard-coded value for 250k, which was then rounded down by PAGE_SIZE. Increasing this to 256k allows kernel to boot on omap1611 SoCs. Problem reported by and initial fix suggested by Tim Bird. Thanks to Tony Lindgren for helping diagnose the problem to being specific to OMAP1611 and not affecting OMAP1610/OMAP1623. Reported-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | arm: omap2: io: fix clk_get() error checkAaro Koskinen2010-12-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | clk_get() return value should be checked with IS_ERR(). Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | arm: plat-omap: counter_32k: use IS_ERR() instead of NULL checkVasiliy Kulikov2010-12-061-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | clk_get() returns ERR_PTR() on error, not NULL. Signed-off-by: Vasiliy Kulikov <segoon@openwall.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> [tony@atomide.com: updated to include err.h to compile on omap1] Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | omap: zoom: wl1271 slot is MMC_CAP_POWER_OFF_CARDOhad Ben-Cohen2010-12-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch complements ed919b0 "mmc: sdio: fix runtime PM anomalies by introducing MMC_CAP_POWER_OFF_CARD" by declaring MMC_CAP_POWER_OFF_CARD on the ZOOM's wl1271 mmc slot. This is required in order not to break runtime PM support for the wl1271 sdio driver. Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com> Signed-off-by: Chris Ball <cjb@laptop.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
| * | omap: PM debug: fix wake-on-timer debugfs dependencyKevin Hilman2010-12-021-17/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wakeup-on-timer code does not have/need debugfs dependency. Move the function out of debugfs ifdef. Fixes compile error when CONFIG_DEBUG_FS is disabled but PM debug is enabled. Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* | | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-12-147-32/+236
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6535/1: V6 MPCore v6_dma_inv_range and v6_dma_flush_range RWFO fix ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNEL ARM: 6533/1: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6 Change bcmring Maintainer list. ARM: Update mach-types ARM: 6528/1: Use CTR for the I-cache line size on ARMv7 ARM: 6527/1: Use CTR instead of CCSIDR for the D-cache line size on ARMv7 ARM: pxa/palm: fix ifdef around gen_nand driver registration ARM: pxa: fix pxa2xx-flash section mismatch ARM: mmp2: remove not used clk_rtc
| * | | ARM: 6535/1: V6 MPCore v6_dma_inv_range and v6_dma_flush_range RWFO fixValentine Barshak2010-12-141-8/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cache ownership must be acquired by reading/writing data from the cache line to make cache operation have the desired effect on the SMP MPCore CPU. However, the ownership is never acquired in the v6_dma_inv_range function when cleaning the first line and flushing the last one, in case the address is not aligned to D_CACHE_LINE_SIZE boundary. Fix this by reading/writing data if needed, before performing cache operations. While at it, fix v6_dma_flush_range to prevent RWFO outside the buffer. Cc: stable@kernel.org Signed-off-by: Valentine Barshak <vbarshak@mvista.com> Signed-off-by: George G. Davis <gdavis@mvista.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | ARM: 6534/1: Make CONFIG_FPE_NWFPE depend on !CONFIG_THUMB2_KERNELDave Martin2010-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because the nwfpe support is unlikely to be used on new platforms and requires CONFIG_OABI_COMPAT, which is not generally used with ARMv7+, we shouldn't expect to build nwfpe support into a Thumb-2 kernel. At present, nwfpe contains assembly code which isn't Thumb-2 compatible, and for now it doesn't appear useful to port this code. All ARMv7-A/R platforms necessarily have VFPv3 hardware floating- point natively, making emulation unnecessary. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | ARM: 6533/1: Thumb-2: Make CONFIG_THUMB2_KERNEL depend on !CPU_V6Dave Martin2010-12-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This makes sense, because Thumb-2 code can't execute on plain ARMv6 processors. This will avoid accidentally configuring a broken kernel where the config otherwise would allow multiple architecture versions to coexist in the same kernel. Not adding !CPU_V5 etc., because the chance of anyone trying to put v5 and v7 in the same kernel is low, and I'm not aware of any mach which can do this. These could be added later if it matters. Note that the rules may need to be refined if support for the ARM1156J(F)-S processor is later added to the kernel, since this processor supports the rare ARMv6T2 extensions, which add support for Thumb-2 and a few other ARMv7 features. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | Merge branch 'fix' of ↵Russell King2010-12-122-2/+2
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
| | * | | ARM: pxa/palm: fix ifdef around gen_nand driver registrationMarek Vasut2010-11-301-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported-by: Rafael Gandolfi <kaillasse91@hotmail.fr> Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| | * | | ARM: mmp2: remove not used clk_rtcJason Chagas2010-11-301-1/+0
| | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | RTC clock will remain at 32KHz and powered on, there is no need for it at this moment. Signed-off-by: Jason Chagas <jason.chagas@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
| * | | ARM: Update mach-typesRussell King2010-12-121-4/+179
| | | | | | | | | | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | ARM: 6528/1: Use CTR for the I-cache line size on ARMv7Catalin Marinas2010-12-122-10/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation of the v7_coherent_*_range function assumes that the D and I cache lines have the same size, which is incorrect architecturally. This patch adds the icache_line_size macro which reads the CTR register. The main loop in v7_coherent_*_range is split in two independent loops or the D and I caches. This also has the performance advantage that the DSB is moved outside the main loop. Reported-by: Kevin Sapp <ksapp@quicinc.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | ARM: 6527/1: Use CTR instead of CCSIDR for the D-cache line size on ARMv7Catalin Marinas2010-12-121-6/+6
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | The current implementation of the dcache_line_size macro reads the L1 cache size from the CCSIDR register. This, however, is not guaranteed to be the smallest cache line in the cache hierarchy. The patch changes to the macro to use the more architecturally correct CTR register. Reported-by: Kevin Sapp <ksapp@quicinc.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds2010-12-1413-409/+64
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc: Write to prom console using indirect buffer. sparc: Delete prom_*getchar(). sparc: Pass buffer pointer all the way down to prom_{get,put}char(). sparc: Do not export prom_nb{get,put}char(). sparc64: Delete prom_setcallback(). sparc64: Unexport prom_service_exists(). sparc: Kill prom devops_{32,64}.c sparc: Remove prom_pathtoinode() sparc64: Delete prom_puts() unused. SPARC/LEON: removed constant timer initialization as if HZ=100, now it reflects the value of HZ
| * | sparc: Write to prom console using indirect buffer.David S. Miller2010-11-305-29/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sparc64 systems have a restriction in that passing in buffer addressses above 4GB to prom calls is not reliable. We end up violating this when we do prom console writes, because we use an on-stack buffer to translate '\n' into '\r\n'. So instead, do this translation into an intermediate buffer, which is in the kernel image and thus below 4GB, then pass that to the PROM console write calls. On the 32-bit side we don't have to deal with any of these issues, so the new prom_console_write_buf() uses the existing prom_nbputchar() implementation. However we can now mark those routines static. Since the 64-bit side completely uses new code we can delete the putchar bits as they are now completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Delete prom_*getchar().David S. Miller2010-11-304-83/+0
| | | | | | | | | | | | | | | | | | Completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Pass buffer pointer all the way down to prom_{get,put}char().David S. Miller2010-11-306-54/+55
| | | | | | | | | | | | | | | | | | | | | | | | This gets us closer to being able to eliminate the use of dynamic and stack based buffers, so that we can adhere to the "no buffer addresses above 4GB" rule for PROM calls. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Do not export prom_nb{get,put}char().David S. Miller2010-11-174-20/+4
| | | | | | | | | | | | | | | | | | Never used outside of console_{32,64}.c Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc64: Delete prom_setcallback().David S. Miller2010-11-162-22/+0
| | | | | | | | | | | | | | | | | | Unused. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc64: Unexport prom_service_exists().David S. Miller2010-11-162-2/+1
| | | | | | | | | | | | | | | | | | | | | Only used by functions in misc_64.c so make it private to that file. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Kill prom devops_{32,64}.cDavid S. Miller2010-11-165-195/+0
| | | | | | | | | | | | | | | | | | Completely unused. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc: Remove prom_pathtoinode()David S. Miller2010-11-164-36/+0
| | | | | | | | | | | | | | | | | | Unused. Signed-off-by: David S. Miller <davem@davemloft.net>
| * | sparc64: Delete prom_puts() unused.David S. Miller2010-11-161-16/+0
| | | | | | | | | | | | Signed-off-by: David S. Miller <davem@davemloft.net>
| * | SPARC/LEON: removed constant timer initialization as if HZ=100, now it ↵Daniel Hellstrom2010-10-291-2/+2
| | | | | | | | | | | | | | | | | | | | | reflects the value of HZ Signed-off-by: Daniel Hellstrom <daniel@gaisler.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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*---. \ \ Merge branches 'x86-fixes-for-linus', 'perf-fixes-for-linus' and ↵Linus Torvalds2010-12-083-0/+8
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/pvclock: Zero last_value on resume * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf record: Fix eternal wait for stillborn child perf header: Don't assume there's no attr info if no sample ids is provided perf symbols: Figure out start address of kernel map from kallsyms perf symbols: Fix kallsyms kernel/module map splitting * 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: nohz: Fix printk_needs_cpu() return value on offline cpus printk: Fix wake_up_klogd() vs cpu hotplug
| * | | | | x86/pvclock: Zero last_value on resumeJeremy Fitzhardinge2010-11-283-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If the guest domain has been suspend/resumed or migrated, then the system clock backing the pvclock clocksource may revert to a smaller value (ie, can be non-monotonic across the migration/save-restore). Make sure we zero last_value in that case so that the domain continues to see clock updates. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | | | | Merge branch 'fixes/2637-rc5/s3c24xx' of git://git.fluff.org/bjdooks/linuxLinus Torvalds2010-12-0711-21/+89
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'fixes/2637-rc5/s3c24xx' of git://git.fluff.org/bjdooks/linux: ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacks ARM: mini2440: Fix Kconfig to allow kernel to build ARM: S3C2412: Fix typo in CONFIG_CPU_S3C2412_ONLY definition ARM: S3C2443: Select properly ARM core type ARM: SMDK2416: Select MACH_SMDK, S3C_DEV_NAND, S3C_DEV_USB_HOST
| * | | | | | ARM: S3C24XX: Fix mess with gpio {set,get}_pull callbacksVasily Khoruzhick2010-12-088-20/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the {set,get}_pull callbacks of the s3c24xx_gpiocfg_default structure are initalized via s3c_gpio_{get,set}pull_1up. This results in a linker error when only CONFIG_CPU_S3C2442 is selected: arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f4): undefined reference to `s3c_gpio_getpull_1up' arch/arm/plat-s3c24xx/built-in.o:(.data+0x13f8): undefined reference to `s3c_gpio_setpull_1up' The s3c2442 has pulldowns instead of pullups compared to the s3c2440. The method of controlling them is the same though. So this patch modifies the existing s3c_gpio_{get,set}pull_1up helper functions to take an additional parameter deciding whether the pin has a pullup or pulldown. The s3c_gpio_{get,set}pull_1{down,up} functions then wrap that functions passing either S3C_GPIO_PULL_UP or S3C_GPIO_PULL_DOWN. Furthermore this patch sets up the s3c24xx_gpiocfg_default.{get,set}_pull fields in the s3c244{0,2}_map_io function to the new pulldown helper functions. Based on patch from "Lars-Peter Clausen" <lars@metafoo.de> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: mini2440: Fix Kconfig to allow kernel to buildBen Dooks2010-12-031-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MACH_MINI2440 entry requires the backlight LED driver, but this subsystem has not been enabled and the select of LEDS_TRIGGER_BACKLIGHT alone is insufficient to enable the necessary bits of the LED driver. Add NEW_LEDS, LEDS_CLASS and LEDS_TRIGGER to the select to allow the kernel to link. This fixes the following error: drivers/built-in.o: In function `led_trigger_set': /home/ben/linux.git/drivers/leds/led-triggers.c:116: undefined reference to `led_brightness_set' Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: S3C2412: Fix typo in CONFIG_CPU_S3C2412_ONLY definitionYauhen Kharuzhy2010-11-301-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Dependency on (CPU_S3C2416 is not selected) was defined as "!CPU_2416", instead of "!CPU_S3C2416". Fix it. Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: S3C2443: Select properly ARM core typeYauhen Kharuzhy2010-11-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Select ARM920T core when compiling kernel for s3c2443. Signed-off-by: Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| * | | | | | ARM: SMDK2416: Select MACH_SMDK, S3C_DEV_NAND, S3C_DEV_USB_HOSTYauhen Kharuzhy2010-11-301-0/+3
| | |_|_|_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable compilation of platform devices and initialization code used in SMDK2416 board file. Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* | | | | | MN10300: Fix interrupt mask alteration function call name in gdbstubDavid Howells2010-12-073-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the name of interrupt mask alteration function (ie the local_change_intr_mask_level() fn) called in gdbstub to have an arch_ prefix to match the definition in asm/irqflags.h. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds2010-12-071-0/+19
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] css: fix rsid evaluation for 2nd crw [S390] nohz/s390: fix arch_needs_cpu() return value on offline cpus
| * | | | | | [S390] nohz/s390: fix arch_needs_cpu() return value on offline cpusHeiko Carstens2010-12-011-0/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the same problem as described in the patch "nohz: fix printk_needs_cpu() return value on offline cpus" for the arch_needs_cpu() primitive: arch_needs_cpu() may return 1 if called on offline cpus. When a cpu gets offlined it schedules the idle process which, before killing its own cpu, will call tick_nohz_stop_sched_tick(). That function in turn will call arch_needs_cpu() in order to check if the local tick can be disabled. On offline cpus this function should naturally return 0 since regardless if the tick gets disabled or not the cpu will be dead short after. That is besides the fact that __cpu_disable() should already have made sure that no interrupts on the offlined cpu will be delivered anyway. In this case it prevents tick_nohz_stop_sched_tick() to call select_nohz_load_balancer(). No idea if that really is a problem. However what made me debug this is that on 2.6.32 the function get_nohz_load_balancer() is used within __mod_timer() to select a cpu on which a timer gets enqueued. If arch_needs_cpu() returns 1 then the nohz_load_balancer cpu doesn't get updated when a cpu gets offlined. It may contain the cpu number of an offline cpu. In turn timers get enqueued on an offline cpu and not very surprisingly they never expire and cause system hangs. This has been observed 2.6.32 kernels. On current kernels __mod_timer() uses get_nohz_timer_target() which doesn't have that problem. However there might be other problems because of the too early exit tick_nohz_stop_sched_tick() in case a cpu goes offline. This specific bug was indrocuded with 3c5d92a0 "nohz: Introduce arch_needs_cpu". In this case a cpu hotplug notifier is used to fix the issue in order to keep the normal/fast path small. All we need to do is to clear the condition that makes arch_needs_cpu() return 1 since it is just a performance improvement which is supposed to keep the local tick running for a short period if a cpu goes idle. Nothing special needs to be done except for clearing the condition. Cc: stable@kernel.org Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* | | | | | | ARM: tegra: fix regression from addruart rewriteOlof Johansson2010-12-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0ea129300982 ("arm: return both physical and virtual addresses from addruart") took out the test for MMU on/off but didn't switch the ldr instructions to no longer be conditionals based on said test. Fix that. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Colin Cross <ccross@android.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2010-12-0614-30/+55
|\ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/home/rmk/linux-2.6-arm: ARM: 6524/1: GIC irq desciptor bug fix ARM: 6523/1: iop: ensure sched_clock() is notrace ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module. ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpers ARM: 6505/1: kprobes: Don't HAVE_KPROBES when CONFIG_THUMB2_KERNEL is selected ARM: 6508/1: vexpress: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL ARM: 6507/1: RealView: Correct data alignment in headsmp.S for CONFIG_THUMB2_KERNEL ARM: 6504/1: Thumb-2: Fix long-distance conditional branches in head.S for Thumb-2. ARM: 6503/1: Thumb-2: Restore sensible zImage header layout for CONFIG_THUMB2_KERNEL ARM: 6502/1: Thumb-2: Fix CONFIG_THUMB2_KERNEL breakage in compressed/head.S ARM: 6501/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in mm/proc-v7.S ARM: 6500/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in kernel/head.S ARM: 6499/1: Thumb-2: Correct data alignment for CONFIG_THUMB2_KERNEL in bootp/init.S ARM: 6498/1: vfp: Correct data alignment for CONFIG_THUMB2_KERNEL ARM: 6497/1: kexec: Correct data alignment for CONFIG_THUMB2_KERNEL ARM: 6496/1: GIC: Do not try to register more then NR_IRQS interrupts ARM: cns3xxx: Fix build with CONFIG_PCI=y
| * \ \ \ \ \ \ Merge branch 'for-rmk-fixes' of git://git.infradead.org/users/cbou/linux-cns3xxxRussell King2010-12-061-1/+1
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