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2006-01-14Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2006-01-14[ARM] 3262/4: allow ptraced syscalls to be overridenNicolas Pitre
Patch from Nicolas Pitre This is needed by strace to properly handle the tracing of some system calls. It could be useful for other applications as well. Based on an earlier patch from Daniel Jacobowitz. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Daniel Jacobowitz <dan@debian.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/spi-2.6Linus Torvalds
2006-01-14[ARM] 3112/1: old ABI compat: config option to turn it onNicolas Pitre
Patch from Nicolas Pitre Enjoy ! Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3111/2: old ABI compat: adjust NWFPE to be operational within an EABI ↵Nicolas Pitre
kernel Patch from Nicolas Pitre We need NWFPE if we want to support execution of legacy binaries with an EABI kernel. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3110/5: old ABI compat: multi-ABI syscall entry supportNicolas Pitre
Patch from Nicolas Pitre This patch adds the required code to support both user space ABIs at the same time. A second syscall table is created to include legacy ABI syscalls that need an ABI compat wrapper. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3109/1: old ABI compat: syscall wrappers for ABI impedance matchingNicolas Pitre
Patch from Nicolas Pitre The difference between EABI and the legacy ABI may affect either structure member alignment and/or argument register selection. The patch has the details. Included are wrappers for the following syscalls: sys_stat64 sys_lstat64 sys_fstat64 sys_fcntl64 sys_epoll_ctl sys_epoll_wait sys_ipc sys_semop sys_semtimedop sys_pread64 sys_pwrite64 sys_truncate64 sys_ftruncate64 sys_readahead Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3108/2: old ABI compat: statfs64 and fstatfs64Nicolas Pitre
Patch from Nicolas Pitre struct statfs64 has extra padding with EABI growing its size from 84 to 88. This struct is now __attribute__((packed,aligned(4))) with a small assembly wrapper to force the sz argument to 84 if it is 88 to avoid copying the extra padding over user space memory unexpecting it. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3107/3: ARM EABI: last bits to configure itNicolas Pitre
Patch from Nicolas Pitre This adds the configuration option, and disables any FPA floating point emulators which are not EABI compatible. It also disables Acorn RISC OS/Arthur binary support when CONFIG_EABI=y since it is incompatible with an EABI kernel. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3105/4: ARM EABI: new syscall entry conventionNicolas Pitre
Patch from Nicolas Pitre For a while we wanted to change the way syscalls were called on ARM. Instead of encoding the syscall number in the swi instruction which requires reading back the instruction from memory to extract that number and polluting the data cache, it was decided that simply storing the syscall number into r7 would be more efficient. Since this represents an ABI change then making that change at the same time as EABI support is the right thing to do. It is now expected that EABI user space binaries put the syscall number into r7 and use "swi 0" to call the kernel. Syscall register argument are also expected to have "EABI arrangement" i.e. 64-bit arguments should be put in a pair of registers from an even register number. Example with long ftruncate64(unsigned int fd, loff_t length): legacy ABI: - put fd into r0 - put length into r1-r2 - use "swi #(0x900000 + 194)" to call the kernel new ARM EABI: - put fd into r0 - put length into r2-r3 (skipping over r1) - put 194 into r7 - use "swi 0" to call the kernel Note that it is important to use 0 for the swi argument as backward compatibility with legacy ABI user space relies on this. The syscall macros in asm-arm/unistd.h were also updated to support both ABIs and implement the right call method automatically. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3104/1: ARM EABI: new helper function namesNicolas Pitre
Patch from Nicolas Pitre The ARM EABI defines new names for GCC helper functions. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3103/1: ARM EABI: stack pointer must be 64-bit aligned (part 2)Nicolas Pitre
Patch from Nicolas Pitre We must make sure that assembly code that modifies the stack pointer before calling a C function does it so it remains 64-bit aligned. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-14[ARM] 3102/1: ARM EABI: stack pointer must be 64-bit aligned after a CPU ↵Nicolas Pitre
exception Patch from Nicolas Pitre The ARM EABI says that the stack pointer has to be 64-bit aligned for reasons already mentioned in patch #3101 when calling C functions. We therefore must verify and adjust sp accordingly when taking an exception from kernel mode since sp might not necessarily be 64-bit aligned if the exception occurs in the middle of a kernel function. If the exception occurs while in user mode then no sp fixup is needed as long as sizeof(struct pt_regs) as well as any additional syscall data stack space remain multiples of 8. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[PATCH] spi: simple SPI frameworkDavid Brownell
This is the core of a small SPI framework, implementing the model of a queue of messages which complete asynchronously (with thin synchronous wrappers on top). - It's still less than 2KB of ".text" (ARM). If there's got to be a mid-layer for something so simple, that's the right size budget. :) - The guts use board-specific SPI device tables to build the driver model tree. (Hardware probing is rarely an option.) - This version of Kconfig includes no drivers. At this writing there are two known master controller drivers (PXA/SSP, OMAP MicroWire) and three protocol drivers (CS8415a, ADS7846, DataFlash) with LKML mentions of other drivers in development. - No userspace API. There are several implementations to compare. Implement them like any other driver, and bind them with sysfs. The changes from last version posted to LKML (on 11-Nov-2005) are minor, and include: - One bugfix (removes a FIXME), with the visible effect of making device names be "spiB.C" where B is the bus number and C is the chipselect. - The "caller provides DMA mappings" mechanism now has kerneldoc, for DMA drivers that want to be fancy. - Hey, the framework init can be subsys_init. Even though board init logic fires earlier, at arch_init ... since the framework init is for driver support, and the board init support uses static init. - Various additional spec/doc clarifications based on discussions with other folk. It adds a brief "thank you" at the end, for folk who've helped nudge this framework into existence. As I've said before, I think that "protocol tweaking" is the main support that this driver framework will need to evolve. From: Mark Underwood <basicmark@yahoo.com> Update the SPI framework to remove a potential priority inversion case by reverting to kmalloc if the pre-allocated DMA-safe buffer isn't available. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13[ARM] Separate VIC (vectored interrupt controller) support from VersatileRussell King
Other machines may wish to make use of the VIC support code, so move it to arch/arm/common. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] Remove useless 'default n' from Kconfig filesRussell King
The default is already 'n' so there's no need to explicitly state it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] Support register switch in nommu modeHyok S. Choi
This patch adds register switch support in nommu mode. Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] 3260/1: remove phys_ram from struct machine_desc (part 2)Nicolas Pitre
Patch from Nicolas Pitre This field is redundent since it must be equal to PHYS_OFFSET anyway. Now that no code uses it anymore, mark it deprecated and remove all initializations from the tree. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] 3259/1: remove phys_ram from struct machine_desc (part 1)Nicolas Pitre
Patch from Nicolas Pitre This field is redundent since it must be equal to PHYS_OFFSET anyway. First, let's use PHYS_OFFSET directly instead. Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[ARM] 3257/1: ixp2000: map in scratch and sramLennert Buytenhek
Patch from Lennert Buytenhek For the ixp2000 netdev driver, we need to map in a chunk of SRAM (to store the transmit and receive descriptors) and the scratch get/put area (so that we can use the scratchpad rings in the cpu for managing the descriptors.) These are the final two mappings needed for the netdev driver and the last missing piece for the driver in mainline to work. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-13[PATCH] Add logic module bus_type probe/remove methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13[PATCH] Add locomo bus_type probe/remove methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13[PATCH] Add SA1111 bus_type probe/remove methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-13[PATCH] Add ecard_bus_type probe/remove/shutdown methodsRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-12Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
2006-01-12[ARM] Convert some arm semaphores to mutexesArjan van de Ven
The arm clock semaphores are strict mutexes, convert them to the new mutex implementation Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12[ARM] Allow r2 to be passed through the decompressor to the kernelRussell King
This is part of a patch from Marc Singer to allow r2 to be passed to the kernel. Marc's original comments follow: This revised R2 (atags pointer) patch incorporates comments from Nico Pitre and Ben Dooks. It modifies the head.S files such that the R2 value set by the bootloader is conveyed to the kernel startup code. The kernel head.S heuristically validates the pointer. It will set R2 to zero if it believes the pointer is invalid. Presently, it requires that the ATAGS list reside in the first 16KiB of physical RAM. Relaxing this contraint may be both desirable as well as tricky. Signed-off-by: Marc Singer <elf@buici.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12[PATCH] arm: task_stack_page()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] arm: end_of_stack()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] arm: task_pt_regs()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] arm: task_thread_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[ARM] 3256/1: Make the function-returning ldm's use sp as the base registerCatalin Marinas
Patch from Catalin Marinas If the low interrupt latency mode is enabled for the CPU (from ARMv6 onwards), the ldm/stm instructions are no longer atomic. An ldm instruction restoring the sp and pc registers can be interrupted immediately after sp was updated but before the pc. If this happens, the CPU restores the base register to the value before the ldm instruction but if the base register is not sp, the interrupt routine will corrupt the stack and the restarted ldm instruction will load garbage. Note that future ARM cores might always run in the low interrupt latency mode. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12[ARM] 3234/1: Update cpu_architecture() to deal with the new ID formatCatalin Marinas
Patch from Catalin Marinas Since ARM1176, the CPU ID format has changed and it will also be used for future ARM architectures. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-12[ARM] 3209/1: Configurable DMA-consistent memory regionKevin Hilman
Patch from Kevin Hilman This patch increase available DMA-consistent memory allocated by dma_coherent_alloc(). The default remains at 2M (defined in asm/memory.h) and each platform has the ability to override in asm/arch-foo/memory.h. Signed-off-by: Kevin Hilman <kevin@hilman.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-11[PATCH] capable/capability.h (arch/)Randy Dunlap
arch: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10[ARM] 3247/1: AT91RM9200 support for 2.6 (Cogent CSB337 & CSB637 boards) (PatchAndrew Victor
#3244) Patch from Andrew Victor This patch adds support to the 2.6 kernel series for the Atmel AT91RM9200 processor. This patch is the support for the Cogent CSB337 and CSB637 boards. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10[ARM] 3243/2: AT91RM9200 support for 2.6 (Atmel DK & EK boards)Andrew Victor
Patch from Andrew Victor This patch adds support to the 2.6 kernel series for the Atmel AT91RM9200 processor. This patch is the support for Atmel's DK and EK boards. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-10[PATCH] turn "const static" into "static const"Jesper Juhl
ICC likes to complain about storage class not being first, GCC doesn't care much (except for cases like "inline static"). have a hard time seeing how it could break anything. Thanks to Gabriel A. Devenyi for pointing out http://linuxicc.sourceforge.net/ which is what made me create this patch. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds
2006-01-10spelling: s/trough/through/Adrian Bunk
Additionally, one comment was reformulated by Joe Perches <joe@perches.com>. Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-09[ARM] 3246/1: S3C24XX - retab clock list in arch/arm/mach-s3c2410/clock.cBen Dooks
Patch from Ben Dooks Properly tabulate the clock table in arch/arm/mach-s3c2410/clock.c and put the requisite commas on the end of the structs. Fix the comment about clock enable and disable in the setup code Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09[ARM] 3070/2: Add __ioremap_pfn() APIDeepak Saxena
Patch from Deepak Saxena In working on adding 36-bit addressed supersection support to ioremap(), I came to the conclusion that it would be far simpler to do so by just splitting __ioremap() into a main external interface and adding an __ioremap_pfn() function that takes a pfn + offset into the page that __ioremap() can call. This way existing callers of __ioremap() won't have to change their code and 36-bit systems will just call __ioremap_pfn() and we will not have to deal with unsigned long long variables. Note that __ioremap_pfn() should _NOT_ be called directly by drivers but is reserved for use by arch_ioremap() implementations that map 32-bit resource regions into the real 36-bit address and then call this new function. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09[ARM] Only call set_type method in setup_irq if it's definedRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09Merge Linus' tree.Russell King
2006-01-09[ARM] 3240/2: AT91RM9200 support for 2.6 (Core)SAN People
Patch from SAN People Following changes were made to clock.c: 1) Replaced <asm/hardware/clock.h> with <linux/clk.h> 2) Removed old unused clk_enable & clk_disable. 3) Replaced clk_use/clk_unuse with clk_enable/clk_disable. Otherwise it's the same as the previous patch. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09[ARM] Remove CONFIG_ARCH_CAMELOT from defconfigsRussell King
EPXA10DB has gone, no need to keep the symbol in the defconfigs. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09[ARM] Update mach-typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-08[PATCH] tiny: Make *[ug]id16 support optionalMatt Mackall
Configurable 16-bit UID and friends support This allows turning off the legacy 16 bit UID interfaces on embedded platforms. text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3328268 529040 190556 4047864 3dc3f8 vmlinux From: Adrian Bunk <bunk@stusta.de> UID16 was accidentially disabled for !EMBEDDED. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08[PATCH] remove gcc-2 checksAndrew Morton
Remove various things which were checking for gcc-1.x and gcc-2.x compilers. From: Adrian Bunk <bunk@stusta.de> Some documentation updates and removes some code paths for gcc < 3.2. Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08[PATCH] move rtc_interrupt() prototype to rtc.hAdrian Bunk
This patch moves the rtc_interrupt() prototype to rtc.h and removes the prototypes from C files. It also renames static rtc_interrupt() functions in arch/arm/mach-integrator/time.c and arch/sh64/kernel/time.c to avoid compile problems. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Paul Gortmaker <p_gortmaker@yahoo.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>