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* MIPS: R2: Try to bulletproof instruction_hazard against miss-compilation.Ralf Baechle2006-01-10
| | | | | | | | | | | Gcc has a tradition of misscompiling the previous construct using the address of a label as argument to inline assembler. Gas otoh has the annoying difference between la and dla which are only usable for 32-bit rsp. 64-bit code, so can't be used without conditional compilation. The alterantive is switching the assembler to 64-bit code which happens to work right even for 32-bit code ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: R2: Fix local_irq_save()Maxime Bizon2006-01-10
| | | | | | | | | local_irq_restore uses di which saves the whole status content, not just the IE bit resulting in local_irq_restore() to fail. This only happens if both CONFIG_CPU_MIPSR2 and CONFIG_IRQ_CPU are enabled. Signed-off-by: Maxime Bizon <mbizon@freebox.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Namespace pollution: dump_regs() -> elf_dump_regs()Al Viro2006-01-10
| | | | | | | | | 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>
* MIPS: Au1550: Fix OHCI memory map sizeSergei Shtylyov2006-01-10
| | | | | | | | | | USB OpenHCI host controller on Au1550 only decodes memory addresses from 0x14020000 to 0x1407FFFF according to the databook, which gives 0x60000 (on the prior Au1x00 chips the map size was 1MB). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Update Yoichi Yuasa's email address.Ralf Baechle2006-01-10
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Reorganize ISA constants strictly as bitmasks.Ralf Baechle2006-01-10
| | | | Signed-off-by: Ralf Baechle <ralf@ongar.mips.com>
* MIPS: Introduce machinery for testing for MIPSxxR1/2.Ralf Baechle2006-01-10
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Rename MIPS_CPU_ISA_M{32,64} -> MIPS_CPU_ISA_M{32,64}R1.Ralf Baechle2006-01-10
| | | | 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>
* MIPS: DSP: Put mask field into the right place.Ralf Baechle2006-01-10
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: DSP: Set all register masks to 0x3ff.Ralf Baechle2006-01-10
| | | | | | | 0x2ff was a typo and the value 0x1f of DSP_MASK was refering to an old version of the documentation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Fix mdelay(1) for 64bit kernel with HZ == 1000Atsushi Nemoto2006-01-10
| | | | | | | | | | | | mdelay(1) (i.e. udelay(1000)) does not work correctly due to overflow. 1000 * 0x004189374BC6A7f0 = 0x10000000000000180 (>= 2**64) 0x004189374BC6A7ef (0x004189374BC6A7f0 - 1) is OK and it is exactly same as catchall case (0x8000000000000000UL / (500000 / HZ)). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: DSP: eleminate used_dsp.Ralf Baechle2006-01-10
| | | | | | | | | used_dsp was meant to be used like used_math - but since the FPU context is small and lazy context switching is a stupid idea on multiprocessors this idea only got halfway implemented and those bits are were now breaking ptrace. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: DSP: Context switch the DSPcontrol register also.Ralf Baechle2006-01-10
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [PATCH] mutex subsystem, add default include/asm-*/mutex.h filesArjan van de Ven2006-01-09
| | | | | | | | | | | | | add the per-arch mutex.h files for the remaining architectures. We default to asm-generic/mutex-dec.h, because that performs quite well on most arches. Arches that do not have atomic decrement/increment instructions should switch to mutex-xchg.h instead. Arches can also provide their own implementation for the mutex fastpath primitives. Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* [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] Kill L1_CACHE_SHIFT_MAXRavikiran G Thirumalai2006-01-08
| | | | | | | | | | | Kill L1_CACHE_SHIFT from all arches. Since L1_CACHE_SHIFT_MAX is not used anymore with the introduction of INTERNODE_CACHE, kill L1_CACHE_SHIFT_MAX. Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org> Signed-off-by: Shai Fultheim <shai@scalex86.org> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mips: remove include/asm-mips/riscos-syscall.hDomen Puncer2006-01-06
| | | | | | | | | | Remove nowhere referenced file ("grep riscos -r ." didn't find anything). Signed-off-by: Domen Puncer <domen@coderock.org> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.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>
* [PATCH] madvise(MADV_REMOVE): remove pages from tmpfs shm backing storeBadari Pulavarty2006-01-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is the patch to implement madvise(MADV_REMOVE) - which frees up a given range of pages & its associated backing store. Current implementation supports only shmfs/tmpfs and other filesystems return -ENOSYS. "Some app allocates large tmpfs files, then when some task quits and some client disconnect, some memory can be released. However the only way to release tmpfs-swap is to MADV_REMOVE". - Andrea Arcangeli Databases want to use this feature to drop a section of their bufferpool (shared memory segments) - without writing back to disk/swap space. This feature is also useful for supporting hot-plug memory on UML. Concerns raised by Andrew Morton: - "We have no plan for holepunching! If we _do_ have such a plan (or might in the future) then what would the API look like? I think sys_holepunch(fd, start, len), so we should start out with that." - Using madvise is very weird, because people will ask "why do I need to mmap my file before I can stick a hole in it?" - None of the other madvise operations call into the filesystem in this manner. A broad question is: is this capability an MM operation or a filesytem operation? truncate, for example, is a filesystem operation which sometimes has MM side-effects. madvise is an mm operation and with this patch, it gains FS side-effects, only they're really, really significant ones." Comments: - Andrea suggested the fs operation too but then it's more efficient to have it as a mm operation with fs side effects, because they don't immediatly know fd and physical offset of the range. It's possible to fixup in userland and to use the fs operation but it's more expensive, the vmas are already in the kernel and we can use them. Short term plan & Future Direction: - We seem to need this interface only for shmfs/tmpfs files in the short term. We have to add hooks into the filesystem for correctness and completeness. This is what this patch does. - In the future, plan is to support both fs and mmap apis also. This also involves (other) filesystem specific functions to be implemented. - Current patch doesn't support VM_NONLINEAR - which can be addressed in the future. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Andrea Arcangeli <andrea@suse.de> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Ulrich Drepper <drepper@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds2006-01-04
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| * gitignore: asm-offsets.hBrian Gerst2006-01-01
| | | | | | | | | | | | | | Ignore asm-offsets.h for all arches. Signed-off-by: Brian Gerst <bgerst@didntduck.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
* | [FLS64]: generic versionStephen Hemminger2006-01-03
| | | | | | | | | | Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] ide: AU1200 IDE updateJordan Crouse2005-12-14
| | | | | | | | | | | | | | | | | | Changes here include removing all of CONFIG_PM while it is being repeatedly smacked with a lead pipe, moving the BURSTMODE param to a #define (it should be defined almost always anyway), fixing the rqsize stuff, pulling ide_ioreg_t, and general cleanups and whatnot. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | [PATCH] ide: core modifications for AU1200Jordan Crouse2005-12-14
| | | | | | | | | | | | bart: slightly modified by me Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* | [MIPS] Qemu: Qemu is emulating a 1193.182kHz i8254 PIC.Ralf Baechle2005-12-01
|/ | | | | | From Daniel Jacobowitz <dan@debian.org>. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SEAD: More build fixes.Ralf Baechle2005-11-17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] SEAD: Delete seadint_init() prototype.Ralf Baechle2005-11-17
| | | | | | | There is no definition for seadint_init() and the unprotected prototype breaks compilation of assembler files. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] JMR3927: Fix include wrapper symbol.Ralf Baechle2005-11-17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.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>
* [MIPS] Add const qualifier to writes##bwlq.Arnaud Giersch2005-11-17
| | | | | | | Add const qualifier to parameter addr of writes##bwlq. Signed-off-by: Arnaud Giersch <arnaud.giersch@free.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] IP32: Fix sparse warnings.Arnaud Giersch2005-11-17
| | | | | | | Add __iomem qualifier to crime and mace pointers. Signed-off-by: Arnaud Giersch <arnaud.giersch@free.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] IP32 Fix and complete IP32 parport definitionsArnaud Giersch2005-11-17
| | | | | | | | | Fix, complete, and indent IP32 parport definitions. Definition were wrong for CTXINUSE and DMACTIVE (1-bit shift). Add macros DATA_BOUND, DATALEN_SHIFT, and CTRSHIFT. Signed-off-by: Arnaud Giersch <arnaud.giersch@free.fr> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] JMR3927: Undo accidental rename.Ralf Baechle2005-11-17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] IP32: No need to include <asm/io.h>.Ralf Baechle2005-11-17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Add missing arch defines for the Alchemy MTD driver.Ralf Baechle2005-11-17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] Delete duplicate definitions of break codes.Ralf Baechle2005-11-17
| | | | 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>
* Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2005-11-07
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| * Redefine outs[wl] for ide_outs[wl].Atsushi Nemoto2005-11-07
| | | | | | | | | | | | | | Add missing bits to fix D-cache aliasing problem in the PIO IDE driver. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Delete duplicate definitions.Ralf Baechle2005-11-07
| | | | | | | | | | | | This reverts 8f91ed6c2fec8cb746e4dc86a79247162b4c5a7a. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Define MAX_UDELAY_MSAtsushi Nemoto2005-11-07
| | | | | | | | | | | | | | | | If HZ was 1000, mdelay(2) cause overflow on multiplication in __udelay. We should define MAX_UDELAY_MS properly to prevent this. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Use rtc_lock to protect RTC operationsAtsushi Nemoto2005-11-07
| | | | | | | | | | | | | | | | | | Many RTC routines were not protected against each other, so there are potential races, for example, ntp-update against /dev/rtc. This patch fixes them using rtc_lock. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Remove mips_rtc_lockAtsushi Nemoto2005-11-07
| | | | | | | | | | | | | | | | | | | | | | The mips_rtc_lock is no longer needed because RTC operations should be protected already by other mechanism. (rtc_lock, local_irq_save, etc.) Also, locking whole rtc_get_time/rtc_set_time should be avoided while some RTC routines might take very long time (a few seconds). Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Add .gitignore files for MIPS.Ralf Baechle2005-11-07
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| * O2 parport definitionsIlya A. Volynets-Evenbakh2005-11-07
| | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * Add spaces to MODULE_PROC_FAMILY values.Ralf Baechle2005-11-07
| | | | | | | | | | | | Only a cosmetic fix to make the output of modinfo look readable. 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] fix remaining missing includesTim Schmielau2005-11-07
|/ | | | | | | | | | Fix more include file problems that surfaced since I submitted the previous fix-missing-includes.patch. This should now allow not to include sched.h from module.h, which is done by a followup patch. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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