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2010-05-27asm-generic: add NEED_SG_DMA_LENGTH to define sg_dma_len()FUJITA Tomonori5-2/+12
There are only two ways to define sg_dma_len(); use sg->dma_length or sg->length. This patch introduces NEED_SG_DMA_LENGTH that enables architectures to choose sg->dma_length or sg->length. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Matt Turner <[email protected]> Cc: Russell King <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27asm-generic: remove ISA_DMA_THRESHOLD in scatterlist.hFUJITA Tomonori4-0/+8
This is the first half of the attempt to use asm-generic/scatterlist.h on every architecture. There are only two ways to define scatterlist structure. So it's easy to convert every architecture to use asm-generic/scatterlist.h. This patch: The trick for ISA_DMA_THRESHOLD in asm-generic/scatterlist.h doesn't work for powerpc. This lets architectures defin ISA_DMA_THRESHOLD. Hopefully, we can remove ISA_DMA_THRESHOLD in the future; we can do better to decide if the bouncing is necessary or not. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Richard Henderson <[email protected]> Cc: Ivan Kokshaysky <[email protected]> Cc: Matt Turner <[email protected]> Cc: Russell King <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27powerpc: remove unnecessary sync_single_range_* in swiotlb_dma_opsFUJITA Tomonori2-8/+8
sync_single_range_for_cpu and sync_single_range_for_device hooks in swiotlb_dma_ops are unnecessary because sync_single_for_cpu and sync_single_for_device are used there. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Becky Bruce <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27x86: remove unnecessary sync_single_range_* in swiotlb_dma_opsFUJITA Tomonori1-2/+0
sync_single_range_for_cpu and sync_single_range_for_device hooks in swiotlb_dma_ops are unnecessary because sync_single_for_cpu and sync_single_for_device are used there. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Thomas Gleixner <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27ia64: remove unnecessary sync_single_range_* in swiotlb_dma_opsFUJITA Tomonori1-2/+0
sync_single_range_for_cpu and sync_single_range_for_device hooks in swiotlb_dma_ops are unnecessary because sync_single_for_cpu and sync_single_for_device are used there. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: Tony Luck <[email protected]> Cc: Fenghua Yu <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27rapidio: fix maintenance access to higher memory areasThomas Moll1-7/+30
Fix the maintenance access functions to farend RapidIO devices. 1. Fixed shift of the given offset, to open the maintenance window 2. Mask offset to limit access to the opened maintenance window 3. Added extended destid part to rowtear register, required for 16bit mode This method is matching maintenance transactions generation described by Freescale in the appnote AN2932. With this modification full access to a 16MB maintenance window is possible, this patch is required for IDT cps switches. For easier handling of the access routines, the access was limited to aligned memory regions. This should be no problem because all registers are 32bit wide. Signed-off-by: Thomas Moll <[email protected]> Tested-by: Alexandre Bounine <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27rapidio, powerpc/85xx: Add MChk handler for SRIO portAlexandre Bounine1-4/+70
Add Machine Check exception handling into RapidIO port driver for Freescale SoCs (MPC85xx). Signed-off-by: Alexandre Bounine <[email protected]> Tested-by: Thomas Moll <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27rapidio, powerpc/85xx: add Port-Write message handler for SRIO portAlexandre Bounine1-3/+260
Add RapidIO Port-Write message handler for Freescale SoCs with RapidIO port. Signed-off-by: Alexandre Bounine <[email protected]> Tested-by: Thomas Moll <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27rapidio: add Port-Write handling for EMAlexandre Bounine1-1/+1
Add RapidIO Port-Write message handling in the context of Error Management Extensions Specification Rev.1.3. Signed-off-by: Alexandre Bounine <[email protected]> Tested-by: Thomas Moll <[email protected]> Cc: Matt Porter <[email protected]> Cc: Li Yang <[email protected]> Cc: Kumar Gala <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27s390: convert cpu notifier to return encapsulate errno valueAkinobu Mita1-3/+3
By the previous modification, the cpu notifier can return encapsulate errno value. This converts the cpu notifiers for s390. Signed-off-by: Akinobu Mita <[email protected]> Cc: Martin Schwidefsky <[email protected]> Cc: Heiko Carstens <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27x86: convert cpu notifier to return encapsulate errno valueAkinobu Mita3-3/+3
By the previous modification, the cpu notifier can return encapsulate errno value. This converts the cpu notifiers for msr, cpuid, and therm_throt. Signed-off-by: Akinobu Mita <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27ia64: ptrace_attach_sync_user_rbs: avoid "task->signal != NULL" checksOleg Nesterov1-2/+2
Preparation to make task->signal immutable, no functional changes. It doesn't matter which pointer we check under tasklist to ensure the task was not released, ->signal or ->sighand. But we are going to make ->signal refcountable, change the code to use ->sighand. Note: this code doesn't need this check and tasklist_lock at all, it should be converted to use lock_task_sighand(). And, the code under SIGNAL_STOP_STOPPED check looks wrong. Signed-off-by: Oleg Nesterov <[email protected]> Cc: Fenghua Yu <[email protected]> Cc: Roland McGrath <[email protected]> Cc: Stanislaw Gruszka <[email protected]> Cc: Tony Luck <[email protected]> Cc: Thomas Gleixner <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27ptrace: unify FDPIC implementationsMike Frysinger3-67/+9
The Blackfin/FRV/SuperH guys all have the same exact FDPIC ptrace code in their arch handlers (since they were probably copied & pasted). Since these ptrace interfaces are an arch independent aspect of the FDPIC code, unify them in the common ptrace code so new FDPIC ports don't need to copy and paste this fundamental stuff yet again. Signed-off-by: Mike Frysinger <[email protected]> Acked-by: Roland McGrath <[email protected]> Acked-by: David Howells <[email protected]> Acked-by: Paul Mundt <[email protected]> Cc: Oleg Nesterov <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27cpusets: randomize node rotor used in cpuset_mem_spread_node()Jack Steiner1-0/+17
Some workloads that create a large number of small files tend to assign too many pages to node 0 (multi-node systems). Part of the reason is that the rotor (in cpuset_mem_spread_node()) used to assign nodes starts at node 0 for newly created tasks. This patch changes the rotor to be initialized to a random node number of the cpuset. [[email protected]: fix layout] [[email protected]: Define stub numa_random() for !NUMA configuration] Signed-off-by: Jack Steiner <[email protected]> Signed-off-by: Lee Schermerhorn <[email protected]> Cc: Christoph Lameter <[email protected]> Cc: Pekka Enberg <[email protected]> Cc: Paul Menage <[email protected]> Cc: Jack Steiner <[email protected]> Cc: Robin Holt <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27arm: omap: remove the unused omap_gpio_set_debounce methodsFelipe Balbi1-74/+0
Nobody uses that anymore, so remove and expect drivers to use the gpiolib implementation. Signed-off-by: Felipe Balbi <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: David Brownell <[email protected]> Cc: Mark Brown <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27arm: omap: switch over to gpio_set_debounceFelipe Balbi5-12/+6
Stop using the omap-specific implementations for gpio debouncing now that gpiolib provides its own support. Signed-off-by: Felipe Balbi <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: David Brownell <[email protected]> Cc: Mark Brown <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27arm: omap: gpio: implement set_debounce methodFelipe Balbi1-0/+68
OMAP supports debouncing of gpio lines, implement the method using gpiolib. Signed-off-by: Felipe Balbi <[email protected]> Cc: Tony Lindgren <[email protected]> Cc: David Brownell <[email protected]> Cc: Mark Brown <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27davinci: mmc: pass number of SG segments as platform dataSudhakar Rajashekhara1-0/+3
On some platforms like DM355, the number of EDMA parameter slots available for EDMA_SLOT_ANY usage are few. In such cases, if MMC/SD uses 16 slots for each instance of MMC controller, then the number of slots available for other modules will be very few. By passing the number of EDMA slots to be used in MMC driver from platform data, EDMA slots available for other purposes can be controlled. Most of the platforms will not use this platform data variable. But on DM355, as the number of EDMA resources available is limited, the number of scatter- gather segments used inside the MMC driver can be 8 (passed as platform data) instead of 16. On DM355, when the number of scatter-gather segments was reduced to 8, I saw a performance difference of about 0.25-0.4 Mbytes/sec during write. Read performance variations were negligible. Signed-off-by: Sudhakar Rajashekhara <[email protected]> Acked-by: Kevin Hilman <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-27arch/x86/kernel: Add missing spin_unlockJulia Lawall1-3/+9
Add a spin_unlock missing on the error path. The locks and unlocks are balanced in other functions, so it seems that the same should be the case here. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression E1; @@ * spin_lock(E1,...); <+... when != E1 if (...) { ... when != E1 * return ...; } ...+> * spin_unlock(E1,...); // </smpl> Cc: [email protected] Signed-off-by: Julia Lawall <[email protected]> Signed-off-by: Joerg Roedel <[email protected]>
2010-05-27ARM: 6146/1: sa1111: Prevent deadlock in resume pathMarek Vašut1-2/+7
This patch reorganises the sa1111_resume() function in a manner the spinlock happens after calling the sa1111_wake(). This fixes two bugs: 1) This function called sa1111_wake() which tried to claim the same spinlock the sa1111_resume() already claimed. This would result in certain deadlock. Original idea for this part: Russell King <[email protected]> 2) The function didn't unlock the spinlock in case the chip didn't report correct ID. Original idea for this part: Julia Lawall <[email protected]> Signed-off-by: Marek Vasut <[email protected]> Cc: <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-05-27ARM: 6145/1: ux500 MTU clockrate correctionLinus Walleij7-12/+167
This adjusts the clockrate for the MTU timer. On the different UX500 variants this rate is different. The platform can also have been set up at hardware initialization, bootloader or early init for different clock speeds. To have the clock framework available early so the timers can use them, the clock initialization for Nomadik and ux500 is moved to IRQ init time. A custom per-clock callback is added to handle special cases like this. This solves a user-visible bug: without this patch the current UX500 platforms will not be synchronized to wall-clock time and the platform will drift in time. Acked-by: Rabin Vincent <[email protected]> Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-05-27ARM: 6144/1: TCM memory bug freeing bugLinus Walleij1-3/+3
This fixes a bug in mm/init.c when freeing the TCM compile memory, this was being referred to as a char * which is incorrect: this will dereference the pointer and feed in the value at the location instead of the address to it. Change it to a plain char and use &(char) to reference it. Signed-off-by: Linus Walleij <[email protected]> Cc: <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-05-27ARM: VFP: Fix vfp_put_double() for d16-d31Russell King1-1/+1
vfp_put_double() takes the double value in r0,r1 not r1,r2. Reported-by: Tarun Kanti DebBarma <[email protected]> Cc: <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-05-26sparc64: Update defconfig.David S. Miller1-14/+35
Move from SLUB to SLAB, as this is what the world plans to align to, every distribution enables, and thus is what everyone actually is testing. Signed-off-by: David S. Miller <[email protected]>
2010-05-26[S390] Add support for LZO-compressed kernels.Heiko Carstens3-1/+9
Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] cmm: get rid of CMM_PROC config optionHeiko Carstens2-16/+0
All distros have this option switched on, so lets get rid of at least one of the tons of config options that are available. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] cmm: remove superfluous EXPORT_SYMBOLs plus cleanupsHeiko Carstens1-53/+29
Remove superfluous EXPORT_SYMBOLS and do coding style cleanup while being at it. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] cio: unit check handling during internal I/OMichael Ernst1-0/+10
Send unit checks that occur during internal I/O to the device driver and react according to its return code. Signed-off-by: Michael Ernst <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] spp: remove KVM_AWARE_CMF config optionHeiko Carstens3-15/+2
This config option enables or disables three single instructions which aren't expensive. This is too fine grained. Besided that everybody who uses kvm would enable it anyway in order to debug performance problems. Just remove it. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] kprobes: forbid probing of stnsm/stosm/epswHeiko Carstens1-0/+3
The probed instructions will be executed in a single stepped and irq disabled context. Therefore the results of stnsm, stosm and epsw would be wrong if probed. So let's just disallow probing of these functions. If really needed a fixup could be written for each of them, but I doubt it's worth it. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] spp: fix compilation for CONFIG_32BITHeiko Carstens2-3/+3
Fix build breakage for CONFIG_32BIT caused by cd3b70f5 "[S390] virtualization aware cpu measurement" Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] atomic: implement atomic64_dec_if_positiveHeiko Carstens1-0/+19
Implement atomic64_dec_if_positive and add missing system.h header include. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26[S390] cmm: fix crash on module unloadHeiko Carstens1-9/+9
There might be a scheduled cmm_timer if the cmm module gets unloaded. That timer was not deleted during module unload and thus could lead to system crash later on. Besides that reorder function calls in module init and exit code to avoid a couple of other races which could lead to accesses to uninitialized data. Signed-off-by: Heiko Carstens <[email protected]> Signed-off-by: Martin Schwidefsky <[email protected]>
2010-05-26x86, pat: Fix memory leak in free_memtypeXiaotian Feng3-9/+14
Reserve_memtype will allocate memory for new memtype, but in free_memtype, after the memtype erased from rbtree, the memory is not freed. Changes since V1: make rbt_memtype_erase return erased memtype so that it can be freed in free_memtype. [ hpa: not for -stable: 2.6.34 and earlier not affected ] Signed-off-by: Xiaotian Feng <[email protected]> LKML-Reference: <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: "H. Peter Anvin" <[email protected]> Cc: Venkatesh Pallipadi <[email protected]> Cc: Jack Steiner <[email protected]> Acked-by: Suresh Siddha <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2010-05-26m68k: amiga - RTC platform device conversionGeert Uytterhoeven2-174/+17
The A2000 TOD is an Oki MSM6242B, while the A3000 TOD is a Ricoh RP5C01. Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - Parallel port platform device conversionGeert Uytterhoeven1-0/+3
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - Serial port platform device conversionGeert Uytterhoeven1-0/+3
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - Mouse platform device conversionGeert Uytterhoeven1-0/+3
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - Keyboard platform device conversionGeert Uytterhoeven1-0/+5
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - Amiga Gayle IDE platform device conversionGeert Uytterhoeven2-1/+68
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - A4000T SCSI platform device conversionGeert Uytterhoeven1-0/+11
Acked-by: James Bottomley <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: amiga - A3000 SCSI platform device conversionGeert Uytterhoeven1-0/+11
Acked-by: James Bottomley <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: set ARCH_KMALLOC_MINALIGNFUJITA Tomonori1-0/+2
Architectures that handle DMA-non-coherent memory need to set ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the buffer doesn't share a cache with the others. Signed-off-by: FUJITA Tomonori <[email protected]> Cc: Geert Uytterhoeven <[email protected]> Cc: Roman Zippel <[email protected]> Acked-by: Pekka Enberg <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26m68k: Enable atomic64_tGeert Uytterhoeven2-0/+3
Signed-off-by: Geert Uytterhoeven <[email protected]>
2010-05-26gta02: Use pcf50633 backlight driver instead of platform backlight driver.Lars-Peter Clausen1-67/+9
Use the pcf50633 backlight driver instead of the platform backlight driver. Signed-off-by: Lars-Peter Clausen <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26Revert "endian: #define __BYTE_ORDER"Linus Torvalds7-2/+31
This reverts commit b3b77c8caef1750ebeea1054e39e358550ea9f55, which was also totally broken (see commit 0d2daf5cc858 that reverted the crc32 version of it). As reported by Stephen Rothwell, it causes problems on big-endian machines: > In file included from fs/jfs/jfs_types.h:33, > from fs/jfs/jfs_incore.h:26, > from fs/jfs/file.c:22: > fs/jfs/endian24.h:36:101: warning: "__LITTLE_ENDIAN" is not defined The kernel has never had that crazy "__BYTE_ORDER == __LITTLE_ENDIAN" model. It's not how we do things, and it isn't how we _should_ do things. So don't go there. Requested-by: Stephen Rothwell <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-26leds: Add mx31moboard MC13783 led supportPhilippe Rétornaz1-1/+44
Add two RGB led on mx31moboard using MC13783 led subsystem Signed-off-by: Philippe Rétornaz <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26leds: leds-gpio: Change blink_set callback to be able to turn off blinkingBenjamin Herrenschmidt1-10/+12
The leds-gpio blink_set() callback follows the same prototype as the main leds subsystem blink_set() one. The problem is that to stop blink, normally, a leds driver does it in the brightness_set() callback when asked to set a new fixed value. However, with leds-gpio, the platform has no hook to do so, as this later callback results in a standard GPIO manipulation. This changes the leds-gpio specific callback to take a new argument that indicates whether the LED should be blinking or not and in what state it should be set if not. We also update the dns323 platform which seems to be the only user of this so far. Signed-off-by: Benjamin Herrenschmidt <[email protected]> Signed-off-by: Richard Purdie <[email protected]>
2010-05-26powerpc/44x: icon: select SM502 and frame buffer console supportAnatolij Gustschin1-7/+142
Enables SM502 frame buffer and framebuffer console in the default config file Signed-off-by: Anatolij Gustschin <[email protected]> Signed-off-by: Josh Boyer <[email protected]>
2010-05-26ARM: Merge next-samsungBen Dooks9-33/+42
Merge branch 'next-samsung' into for-linus/2634-git-updates
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