aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/kernel
Commit message (Collapse)AuthorAge
* [PATCH] sched: disable preempt in idle tasksNick Piggin2005-11-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [PATCH] remove ioctl32_handler_tChristoph Hellwig2005-11-09
| | | | | | | | | | | Some architectures define and use this type in their compat_ioctl code, but all of them can easily use the identical ioctl_trans_handler_t type that is defined in common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2005-11-07
|\
| * Fix return type of setup_frame variantsAtsushi Nemoto2005-11-07
| | | | | | | | | | | | | | | | Since 2.6.13-rc1 setup_frame and its variants return int. But some bits were missed in the conversion. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * IRIX: Use schedule_timeout_interruptible.Ralf Baechle2005-11-07
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * VPE loader janitoringRalf Baechle2005-11-07
| | | | | | | | | | | | | | | | | | | | o Switch to dynamic major o Remove duplicate SHN_MIPS_SCOMMON definition o Coding style: remove typedefs. o Coding style: reorder to avoid the need for forward declarations o Use kzalloc. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Turn rtlx upside down.Ralf Baechle2005-11-07
| | | | | | | | | | | | | | | | | | o Coding style o Race condition on open o Switch to dynamic major o Header file cleanup Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | [PATCH] consolidate sys_ptrace()Christoph Hellwig2005-11-07
|/ | | | | | | | | | | | | | | | | | | | | | The sys_ptrace boilerplate code (everything outside the big switch statement for the arch-specific requests) is shared by most architectures. This patch moves it to kernel/ptrace.c and leaves the arch-specific code as arch_ptrace. Some architectures have a too different ptrace so we have to exclude them. They continue to keep their implementations. For sh64 I had to add a sh64_ptrace wrapper because it does some initialization on the first call. For um I removed an ifdefed SUBARCH_PTRACE_SPECIAL block, but SUBARCH_PTRACE_SPECIAL isn't defined anywhere in the tree. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Acked-By: David Howells <dhowells@redhat.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] jiffies_64 cleanupThomas Gleixner2005-10-30
| | | | | | | | | Define jiffies_64 in kernel/timer.c rather than having 24 duplicated defines in each architecture. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] unify sys_ptrace prototypeChristoph Hellwig2005-10-30
| | | | | | | | | | Make sure we always return, as all syscalls should. Also move the common prototype to <linux/syscalls.h> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Don't uselessly export task_struct to userspace in core dumpsEric W. Biederman2005-10-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | task_struct is an internal structure to the kernel with a lot of good information, that is probably interesting in core dumps. However there is no way for user space to know what format that information is in making it useless. I grepped the GDB 6.3 source code and NT_TASKSTRUCT while defined is not used anywhere else. So I would be surprised if anyone notices it is missing. In addition exporting kernel pointers to all the interesting kernel data structures sounds like the very definition of an information leak. I haven't a clue what someone with evil intentions could do with that information, but in any attack against the kernel it looks like this is the perfect tool for aiming that attack. So since NT_TASKSTRUCT is useless as currently defined and is potentially dangerous, let's just not export it. (akpm: Daniel Jacobowitz <dan@debian.org> "would be amazed" if anything was using NT_TASKSTRUCT). Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mm: mm_init set_mm_countersHugh Dickins2005-10-30
| | | | | | | | | | | | How is anon_rss initialized? In dup_mmap, and by mm_alloc's memset; but that's not so good if an mm_counter_t is a special type. And how is rss initialized? By set_mm_counter, all over the place. Come on, we just need to initialize them both at once by set_mm_counter in mm_init (which follows the memcpy when forking). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove useless casts of kmalloc return values.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Add support for SB1A CPU.Andrew Isaacson2005-10-29
| | | | | Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Sibyte fixesAndrew Isaacson2005-10-29
| | | | | | | Fix typo in cpu_probe_sibyte. Signed-Off-By: Andy Isaacson <adi@broadcom.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Get 64-bit right in the kgdb stub.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Sys_lookup_dcookie arguments occupy 4 argument slots.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* FPU emulator garbage collection.Ralf Baechle2005-10-29
| | | | | | First argument of fpu_emulator_cop1Handler() was unused. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Don't print file name and line in die and die_if_kernel.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Date: Fri Jan 14 03:03:23 2005 +0000Ralf Baechle2005-10-29
| | | | | | Locking cleanups. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Fixup a few lose ends in explicit support for MIPS R1/R2.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Protect manipulation of c0_status against preemption and multithreading.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Detect 4KSD and treat it like 4KSc.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Define and initialize kdb_lock using DEFINE_SPINLOCK.Ralf Baechle2005-10-29
| | | | | | | | | Convert kgdb_cpulock into a raw_spinlock_t. SPIN_LOCK_UNLOCKED is deprecated and it's replacement DEFINE_SPINLOCK is not suitable for arrays of spinlocks. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Make kgdb_wait static.Ralf Baechle2005-10-29
| | | | | | | Nothing outside gdb-stub.c uses kgdb_wait, so change it's definition to static. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Cleanup the mess in cpu_cache_init.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Support for MIPSsim, the cycle accurate MIPS simulator.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Switch Sibyte profiling driver to ->compat_ioctlRalf Baechle2005-10-29
| | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Revise MIPS 64-bit ptrace interfaceDaniel Jacobowitz2005-10-29
| | | | | | | | Change the N32 debugging ABI to something more sane, and add support for o32 and n32 debuggers to trace n64 programs. Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Fix excessive signal latencies.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Move genrtc.c's functions into <asm/rtc.h>Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Virtual SMP support for the 34K.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MT bulletproofing.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Display presence of SmartMIPS, DSP and MT ASEs in /proc/cpuinfo.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Delete old junk.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Spelling fix.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Inlining will result in back-to-back mtc0 mfc0 instructions. Break theRalf Baechle2005-10-29
| | | | | | hazard by using back_to_back_c0_hazard(). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* sys is only used for native o32 ...Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* R4600 has 32 FPRs.Thiemo Seufer2005-10-29
| | | | | Signed-off-by: Thiemo Seufer <ths@networkno.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Make sure that the processor is actually online or die spectacularly.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Avoid SMP cacheflushes. This is a minor optimization of startup butRalf Baechle2005-10-29
| | | | | | | will also avoid smp_call_function from doing stupid things when called from a CPU that is not yet marked online. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Philips PNX8550 support: MIPS32-like core with 2 Trimedias on it.Pete Popov2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* More AP / SP bits for the 34K, the Malta bits and things. Still wantsRalf Baechle2005-10-29
| | | | | | a little polishing. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Move Origin crapola into a machine-specific header file.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Prevent gcc from optimizing a few functions away completly.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Detect the MIPS R2 vectored interrupt, external interrupt controllerRalf Baechle2005-10-29
| | | | | | options and the precense of the MT ASE. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* New kernel option nowait allows disabling the use of the wait instruction.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Use an irq_enable_hazard hazard barrier in unmask_mips_irq. ThisRalf Baechle2005-10-29
| | | | | | | | | hasn't been an actual bug, so it's more a change to be 100% compliant with the requirements of the architecture spec. Similar fix to mask_mips_irq where there was a slightly less theoretical chance of getting hit. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Add inotify syscalls for MIPS.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Mark a few variables __read_mostly.Ralf Baechle2005-10-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 20:16:53 -0500