- 04 1月, 2006 1 次提交
-
-
由 Russell King 提交于
arch/arm/kernel/entry-armv.S has contained a comment suggesting that asm/hardware.h and asm/arch/irqs.h should be moved into the asm/arch/entry-macro.S include. So move the includes to these two files as required. Add missing includes (asm/hardware.h, asm/io.h) to asm/arch/system.h includes which use those facilities, and remove asm/io.h from kernel/process.c. Remove other unnecessary includes from arch/arm/kernel, arch/arm/mm and arch/arm/mach-footbridge. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 31 10月, 2005 1 次提交
-
-
由 Russell King 提交于
Provide __die() which can be called from various contexts to provide an oops report. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 30 10月, 2005 1 次提交
-
-
由 Hugh Dickins 提交于
Prepare arm for the split page_table_lock: three issues. Signal handling's preserve and restore of iwmmxt context currently involves reading and writing that context to and from user space, while holding page_table_lock to secure the user page(s) against kswapd. If we split the lock, then the structure might span two pages, secured by to read into and write from a kernel stack buffer, copying that out and in without locking (the structure is 160 bytes in size, and here we're near the top of the kernel stack). Or would the overhead be noticeable? arm_syscall's cmpxchg emulation use pte_offset_map_lock, instead of pte_offset_map and mm-wide page_table_lock; and strictly, it should now also take mmap_sem before descending to pmd, to guard against another thread munmapping, and the page table pulled out beneath this thread. Updated two comments in fault-armv.c. adjust_pte is interesting, since its modification of a pte in one part of the mm depends on the lock held when calling update_mmu_cache for a pte in some other part of that mm. This can't be done with a split page_table_lock (and we've already taken the lowest lock in the hierarchy here): so we'll have to disable split on arm, unless CONFIG_CPU_CACHE_VIPT to ensures adjust_pte never used. Signed-off-by: NHugh Dickins <hugh@veritas.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 28 10月, 2005 1 次提交
-
-
由 Nicolas Pitre 提交于
Patch from Nicolas Pitre From: Daniel Jacobowitz <dan@debian.org> > I also fixed a bug that confused me greatly while trying to debug: one > SIGILL has long been a SIGSEGV because of some broken RISCOS > compatibility code. Signed-off-by: NNicolas Pitre <nico@cam.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 05 10月, 2005 1 次提交
-
-
由 Nicolas Pitre 提交于
Patch from Nicolas Pitre The cmpxchg emulation syscall needs write access. Signed-off-by: NNicolas Pitre <nico@cam.org> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 22 9月, 2005 1 次提交
-
-
由 Catalin Marinas 提交于
Patch from Catalin Marinas This patch prevents the "noreturn function does return" warning in the __bug() function in arch/arm/kernel/traps.c Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 24 8月, 2005 1 次提交
-
-
由 Al Viro 提交于
a bunch of functions switched from volatile to __attribute__((noreturn)) and from const to __attribute_pure__ Signed-off-by: NAl Viro <viro@parcelfarce.linux.theplanet.co.uk> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
-
- 16 7月, 2005 1 次提交
-
-
由 Russell King 提交于
Preserve the interrupt status across a call to register_undef_hook. This allows it to be called while interrupts are disabled. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 30 6月, 2005 1 次提交
-
-
由 Russell King 提交于
If we receive an unrecognised abort during boot, don't try to send a signal to pid0, but instead report the current state. This leads to less confusing debug reports. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 23 6月, 2005 1 次提交
-
-
由 Russell King 提交于
Move the signal return code into the vector page instead of placing it on the user mode stack, which will allow us to avoid flushing the instruction cache on signals, as well as eventually allowing non-exec stack. Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 09 6月, 2005 1 次提交
-
-
由 Nicolas Pitre 提交于
Patch from Nicolas Pitre Not that there might be many of them on the planet, but at least RMK apparently has one. Signed-off-by: Nicolas Pitre Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 06 5月, 2005 1 次提交
-
-
由 Nicolas Pitre 提交于
Patch from Nicolas Pitre This better express things, and should cover RMK's weird SMP toys. Signed-off-by: Nicolas Pitre Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 05 5月, 2005 1 次提交
-
-
由 Russell King 提交于
Various places in the ARM kernel implicitly assumed that kernel stacks are always 8K due to hard coded constants. Replace these constants with definitions. Correct the allowable range of kernel stack pointer values within the allocation. Arrange for the entire kernel stack to be zeroed, not just the upper 4K if CONFIG_DEBUG_STACK_USAGE is set. Signed-off-by: NRussell King <rmk@arm.linux.org.uk>
-
- 30 4月, 2005 1 次提交
-
-
由 Nicolas Pitre 提交于
Patch from Nicolas Pitre This patch entirely reworks the kernel assistance for NPTL on ARM. In particular this provides an efficient way to retrieve the TLS value and perform atomic operations without any instruction emulation nor special system call. This even allows for pre ARMv6 binaries to be forward compatible with SMP systems without any penalty. The problematic and performance critical operations are performed through segment of kernel provided user code reachable from user space at a fixed address in kernel memory. Those fixed entry points are within the vector page so we basically get it for free as no extra memory page is required and nothing else may be mapped at that location anyway. This is different from (but doesn't preclude) a full blown VDSO implementation, however a VDSO would prevent some assembly tricks with constants that allows for efficient branching to those code segments. And since those code segments only use a few cycles before returning to user code, the overhead of a VDSO far call would add a significant overhead to such minimalistic operations. The ARM_NR_set_tls syscall also changed number. This is done for two reasons: 1) this patch changes the way the TLS value was previously meant to be retrieved, therefore we ensure whatever library using the old way gets fixed (they only exist in private tree at the moment since the NPTL work is still progressing). 2) the previous number was allocated in a range causing an undefined instruction trap on kernels not supporting that syscall and it was determined that allocating it in a range returning -ENOSYS would be much nicer for libraries trying to determine if the feature is present or not. Signed-off-by: Nicolas Pitre Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>
-
- 26 4月, 2005 1 次提交
-
-
由 Russell King 提交于
Convert the trivial vector entry initialisation code to C code. Signed-off-by: NRussell King <rmk@arm.linux.org.uk>
-
- 17 4月, 2005 2 次提交
-
-
由 Russell King 提交于
Fix show_regs() to provide a backtrace. Provide a new __show_regs() function which implements the common subset of show_regs() and die(). Add prototypes to asm-arm/system.h Signed-off-by: NRussell King <rmk@arm.linux.org.uk>
-
由 Linus Torvalds 提交于
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
-