kernel.git/arch/arm, branch linux-2.6.30.y

ARM: 5691/1: fix cache aliasing issues between kmap() and kmap_atomic() with highmem

2009-09-24T15:27:14Z

commit 7929eb9cf643ae416e5081b2a6fa558d37b9854c upstream. Let's suppose a highmem page is kmap'd with kmap(). A pkmap entry is used, the page mapped to it, and the virtual cache is dirtied. Then kunmap() is used which does virtually nothing except for decrementing a usage count. Then, let's suppose the _same_ page gets mapped using kmap_atomic(). It is therefore mapped onto a fixmap entry instead, which has a different virtual address unaware of the dirty cache data for that page sitting in the pkmap mapping. Fortunately it is easy to know if a pkmap mapping still exists for that page and use it directly with kmap_atomic(), thanks to kmap_high_get(). And actual testing with a printk in the added code path shows that this condition is actually met *extremely* frequently. Seems that we've been quite lucky that things have worked so well with highmem so far. Signed-off-by: Nicolas Pitre Signed-off-by: Russell King Signed-off-by: Greg Kroah-Hartman

ARM: 5545/2: add flush_kernel_dcache_page() for ARM

2009-07-02T23:50:03Z

commit 73be1591579084a8103a7005dd3172f3e9dd7362 upstream. Without this, the default implementation is a no op which is completely wrong with a VIVT cache, and usage of sg_copy_buffer() produces unpredictable results. Tested-by: Sebastian Andrzej Siewior Signed-off-by: Nicolas Pitre Signed-off-by: Russell King Signed-off-by: Greg Kroah-Hartman

Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6

2009-06-04T16:02:58Z

Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6

2009-06-04T11:27:18Z

[ARM] pxa: fix pxa27x_udc default pullup GPIO

2009-06-04T03:06:25Z

Currently, pxa27x_udc tries to use GPIO 0 as D+ pullup if not explicitly configured. Default to an invalid GPIO (-1) instead. Signed-off-by: Philipp Zabel Acked-by: Robert Jarzmik Signed-off-by: Eric Miao

[ARM] pxa/imote2: fix UCAM sensor board ADC model number

2009-06-04T03:06:25Z

Signed-off-by: Jonathan Cameron Signed-off-by: Eric Miao

mx[23]: don't put clock lookups in __initdata

2009-06-03T09:51:06Z

Remove the __initdata annotation for the clock lookups, since they will be needed when loading modules which use clk_get(). Tested-by: Agustín Ferrín Pozuelo Signed-off-by: Rabin Vincent Signed-off-by: Sascha Hauer

[ARM] ARMv7 errata: only apply fixes when running on applicable CPU

2009-06-02T21:36:20Z

Currently, whenever an erratum workaround is enabled, it will be applied whether or not the erratum is relevent for the CPU. This patch changes this - we check the variant and revision fields in the main ID register to determine which errata to apply. We also avoid re-applying erratum 460075 if it has already been applied. Applying this fix in non-secure mode results in the kernel failing to boot (or even do anything.) This fixes booting on some ARMv7 based platforms which otherwise silently fail. Acked-by: Catalin Marinas Signed-off-by: Russell King

[ARM] 5534/1: kmalloc must return a cache line aligned buffer

2009-06-02T21:36:15Z

Define ARCH_KMALLOC_MINALIGN in asm/cache.h At the request of Russell also move ARCH_SLAB_MINALIGN to this file. Signed-off-by: Martin Fuzzey Signed-off-by: Russell King

Merge master.kernel.org:/home/rmk/linux-2.6-arm

2009-05-29T23:07:39Z

* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] update mach-types [ARM] Add cmpxchg support for ARMv6+ systems (v5) [ARM] barriers: improve xchg, bitops and atomic SMP barriers Gemini: Fix SRAM/ROM location after memory swap MAINTAINER: Add F: entries for Gemini and FA526 [ARM] disable NX support for OABI-supporting kernels [ARM] add coherent DMA mask for mv643xx_eth [ARM] pxa/palm: fix PalmLD/T5/TX AC97 MFP [ARM] pxa: add parameter to clksrc_read() for pxa168/910 [ARM] pxa: fix the incorrectly defined drive strength macros for pxa{168,910} [ARM] Orion: Remove explicit name for platform device resources [ARM] Kirkwood: Correct MPP for SATA activity/presence LEDs of QNAP TS-119/TS-219. [ARM] pxa/ezx: fix pin configuration for low power mode [ARM] pxa/spitz: provide spitz_ohci_exit() that unregisters USB_HOST GPIO [ARM] pxa: enable GPIO receivers after configuring pins [ARM] pxa: allow gpio_reset drive high during normal work [ARM] pxa: save/restore PGSR on suspend/resume.