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path: root/arch/mips/kernel/process.c
AgeCommit message (Collapse)Author
2007-10-11[MIPS] Implement clockevents for R4000-style cp0 count/compare interruptRalf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-10-11[MIPS] R3000 setup for kernel_thread()Maciej W. Rozycki
Match the R4000 semantics for the initial state of interrupt/kernel status register flags for the R3000 in kernel_thread(). Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31[MIPS] Fixup secure computing stuff.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20[MIPS] User stack pointer randomisationFranck Bui-Huu
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-10[MIPS] Transform old-style macros to newer "__noreturn"Robert P. J. Day
Convert old/obsolete NORET_TYPE and ATTRIB_NORET macros to use the newer standard of "__noreturn" as defined in compiler-gcc.h. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-26[MIPS] Make SMTC_IDLE_HOOK_DEBUG a proper option in Kconfig.debug.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-18[MIPS] Make kernel_thread_helper() staticAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-18[MIPS] signals: Share even more code.Ralf Baechle
native and compat do_signal and handle_signal are identical and can easily be unified. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-02-06[MIPS] SMTC: Cleanup idle hook invocation.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-19[MIPS] Use kallsyms_lookup_size_offset() instead of kallsyms_lookup()Franck Bui-Huu
This new routine doesn't lookup for symbol names. So we needn't to pass any char buffers or pointer since we don't care about names. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-09[MIPS] Make sure cpu_has_fpu is used only in atomic contextAtsushi Nemoto
Make sure cpu_has_fpu (which uses smp_processor_id()) is used only in atomic context. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] Make unwind_stack() can dig into interrupted contextAtsushi Nemoto
If the PC was ret_from_irq or ret_from_exception, there will be no more normal stackframe. Instead of stopping the unwinding, use PC and RA saved by an exception handler to continue unwinding into the interrupted context. This also simplifies the CONFIG_STACKTRACE code. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-10-01[MIPS] lockdep: Add STACKTRACE_SUPPORT and enable LOCKDEP_SUPPORTAtsushi Nemoto
Implement stacktrace interface by using unwind_stack() and enable lockdep support in Kconfig. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] get_wchan(): remove uses of mfinfo[64]Franck Bui-Huu
This array was used to 'cache' some frame info about scheduler functions to speed up get_wchan(). This array was 1Ko size and was only used when CONFIG_KALLSYMS was set but declared for all configs. Rather than make the array statement conditional, this patches removes this array and its uses. Indeed the common case doesn't seem to use this array and get_wchan() is not a critical path anyways. It results in a smaller bss and a smaller/cleaner code: text data bss dec hex filename 2543808 254148 139296 2937252 2cd1a4 vmlinux-new-get-wchan 2544080 254148 143392 2941620 2ce2b4 vmlinux~old Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] get_frame_info(): null function size means size is unknownFranck Bui-Huu
This patch adds 2 sanity checks. The first one test that the start address of the function to analyze has been set by the caller. If not return an error since nothing usefull can be done without. The second one checks that the function's size has been set. A null size can happen if CONFIG_KALLSYMS is not set and it means that we don't know the size of the function to analyze. In this case, we make it equal to 128 instructions by default. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] unwind_stack(): return ra if an exception occured at the first ↵Franck Bui-Huu
instruction Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] Improve unwind_stack()Franck Bui-Huu
This patch allows unwind_stack() to return ra for leaf function. But it tries to detects cases where get_frame_info() wrongly consider nested function as a leaf one. It also pass 'unsinged long *sp' instead of 'unsigned long **sp' as second parameter. The code looks cleaner. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] Make get_frame_info() more robustFranck Bui-Huu
Now get_frame_info() wants to detect move sp instruction first. It assumes that the save ra in the stack instruction can't happen before allocating frame size space into the stack. Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] Make frame_info_init() more readable.Franck Bui-Huu
Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] Make get_frame_info() more readable.Franck Bui-Huu
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Franck Bui-Huu <vagabon.xyz@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27[MIPS] dump_stack() based on prologue code analysisAtsushi Nemoto
Instead of dump all possible address in the stack, unwind the stack frame based on prologue code analysis, as like as get_wchan() does. While the code analysis might fail for some reason, there is a new kernel option "raw_show_trace" to disable this feature. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-19[MIPS] FPU affinity for MT ASE.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19[MIPS] MT: Improved multithreading support.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-03-31[PATCH] unexport get_wchanAdrian Bunk
The only user of get_wchan is the proc fs - and proc can't be built modular. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-21[MIPS] Signal cleanupAtsushi Nemoto
Move function prototypes to asm/signal.h to detect trivial errors and add some __user tags to get rid of sparse warnings. Generated code should not be changed. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-14[MIPS] Rewrite get_wchan and its helper functions using kallsyms_lookup.Atsushi Nemoto
Implement get_wchan() and frame_info_init() using kallsyms_lookup(). This fixes problem with static sched/lock functions and mfinfo[] maintenance issue. If CONFIG_KALLSYMS was disabled, get_wchan() just returns thread_saved_pc() value. Also unwind stackframe based on "addiu sp,-imm" analysis instead of frame pointer. This fixes problem with functions compiled without -fomit-frame-pointer. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-02-08[MIPS] Make do_signal return void.Ralf Baechle
It's return value is ignored everywhere. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-02-08[MIPS] Add support for TIF_RESTORE_SIGMASK.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> ---
2006-01-12[PATCH] mips: 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] mips: 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>
2006-01-10MIPS: Namespace pollution: dump_regs() -> elf_dump_regs()Al Viro
dump_regs() is used by a bunch of drivers for their internal stuff; renamed mips instance (one that is seen in system-wide headers) to elf_dump_regs() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-11-09[PATCH] sched: disable preempt in idle tasksNick Piggin
Run idle threads with preempt disabled. Also corrected a bugs in arm26's cpu_idle (make it actually call schedule()). How did it ever work before? Might fix the CPU hotplugging hang which Nigel Cunningham noted. We think the bug hits if the idle thread is preempted after checking need_resched() and before going to sleep, then the CPU offlined. After calling stop_machine_run, the CPU eventually returns from preemption and into the idle thread and goes to sleep. The CPU will continue executing previous idle and have no chance to call play_dead. By disabling preemption until we are ready to explicitly schedule, this bug is fixed and the idle threads generally become more robust. From: alexs <ashepard@u.washington.edu> PPC build fix From: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> MIPS build fix Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Yoichi Yuasa <yuasa@hh.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29Setup_frame is now returning a success value.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Support the MIPS32 / MIPS64 DSP ASE.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29NPTL, round one.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Multithreaded core dumps.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Sparseify MIPS.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-10-29Fix wchan implementation, based on earlier by from Atsushi Nemoto.Thiemo Seufer
Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2005-09-05[PATCH] mips: clean up 32/64-bit configurationRalf Baechle
Start cleaning 32-bit vs. 64-bit configuration. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16Linux-2.6.12-rc2Linus Torvalds
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!
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