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* MIPS: Move headfiles to new location below arch/mips/includeRalf Baechle2008-10-11
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix bug in atomic_sub_if_positive.Ralf Baechle2008-07-04
| | | | | | | | | | | The branch optimization fixes in 2.6.21 introduced a bug in atomic_sub_if_positive that causes it to return even when the sc instruction fails. The result is that e.g. down_trylock becomes unreliable as the semaphore counter is not always decremented. Original MUA-shredded patch from Morten Larsen <mlarsen@broadcom.com>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] checkfiles: Fix "need space after that ','" errors.Ralf Baechle2007-10-11
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Make support for weakly ordered LL/SC a config option.Ralf Baechle2007-07-20
| | | | | | | None of weakly ordered processor supported in tree need this but it seems like this could change ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix build error in atomic64_cmpxchgAtsushi Nemoto2007-05-11
| | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular ↵Mathieu Desnoyers2007-05-08
| | | | | | | | | | | | | | | | | | | | | | | dependency atomic_add_unless as inline. Remove system.h atomic.h circular dependency. I agree (with Andi Kleen) this typeof is not needed and more error prone. All the original atomic.h code that uses cmpxchg (which includes the atomic_add_unless) uses defines instead of inline functions, probably to circumvent a circular dependency between system.h and atomic.h on powerpc (which my patch addresses). Therefore, it makes sense to use inline functions that will provide type checking. atomic_add_unless as inline. Remove system.h atomic.h circular dependency. Digging into the FRV architecture shows me that it is also affected by such a circular dependency. Here is the diff applying this against the rest of my atomic.h patches. It applies over the atomic.h standardization patches. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* atomic.h: add atomic64 cmpxchg, xchg and add_unless to mipsMathieu Desnoyers2007-05-08
| | | | | | | Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [MIPS] Lockdep: Fix recursion bug.Ralf Baechle2007-03-16
| | | | | | trace_hardirqs_off -> atomic_inc -> local_irq_restore -> trace_hardirqs_off Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Improve branch prediction in ll/sc atomic operations.Ralf Baechle2007-02-13
| | | | | | | | | | | | Now that finally all supported versions of binutils have functioning support for .subsection use .subsection to tweak the branch prediction I did not modify the R10000 errata variants because it seems unclear if this will invalidate the workaround which actually relies on the cheesy prediction of branch likely to cause a misspredict if the sc was successful. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Cleanup memory barriers for weakly ordered systems.Ralf Baechle2006-12-04
| | | | | | | Also the R4000 / R4600 LL/SC instructions imply a sync so no explicit sync needed. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Fix atomic.h build errors.Ralf Baechle2006-12-04
| | | | | | | | | For the definition of atomic64_t atomic.h was relying on <asm/types.h> having been included previously. Before changeset d89d8e0637a5e4e0a12e90c4bc934d0d4c335239 this was happening as a side effect of including <linux/spinlock.h>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Remove old junk left from old atomic_lock.Ralf Baechle2006-11-29
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] TRACE_IRQFLAGS_SUPPORT support.Ralf Baechle2006-07-13
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Don't include linux/config.h from anywhere else in include/David Woodhouse2006-04-26
| | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [MIPS] Fix atomic*_sub_if_positive return value.Ralf Baechle2006-02-27
| | | | | | | Reported and initial fix by Thomas Koeller <thomas.koeller@baslerweb.com>, rewritten by me. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Get rid of atomic_lock.Ralf Baechle2006-01-10
| | | | | | It was resulting in build errors for some configurations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] mutex subsystem, add atomic_xchg() to all archesIngo Molnar2006-01-09
| | | | | | | add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
* [PATCH] atomic_long_t & include/asm-generic/atomic.h V2Christoph Lameter2006-01-06
| | | | | | | | | | | | | | | | | | | Several counters already have the need to use 64 atomic variables on 64 bit platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall back to 32 bit atomic on 32 bit platforms. The VM statistics patch that I am working on will also make more extensive use of atomic64. This patch introduces a new type atomic_long_t by providing definitions in asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits on 32 bit platforms and 64 bits on 64 bit platforms. Also cleans up the determination of the mm_counter_t in sched.h. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [MIPS] Fix documentation typos.Arnaud Giersch2005-11-17
| | | | | Signed-off-by: Arnaud Giersch <arnaud.giersch@free.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] atomic: inc_not_zeroNick Piggin2005-11-13
| | | | | | | | | | | Introduce an atomic_inc_not_zero operation. Make this a special case of atomic_add_unless because lockless pagecache actually wants atomic_inc_not_negativeone due to its offset refcount. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] atomic: cmpxchgNick Piggin2005-11-13
| | | | | | | | | Introduce an atomic_cmpxchg operation. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Always use ".set mips3" rather than select between "mips2" or "mips3"Maciej W. Rozycki2005-10-29
| | | | | | | for assembling ll/sc sequences to avoid problems with 64-bit configurations. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Enable a suitable ISA for the assembler around ll/sc so that codeMaciej W. Rozycki2005-10-29
| | | | | | | builds even for processors that don't support the instructions. Plus minor formatting fixes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] mips: clean up 32/64-bit configurationRalf Baechle2005-09-05
| | | | | | | | 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>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-16
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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