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2009-05-14MIPS: Rewrite <asm/div64.h> to work with gcc 4.4.0.Ralf Baechle
The inline assembler used on 32-bit kernels was using the "h" constraint which was considered dangerous and removed for gcc 4.4.0. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Fix highmem.Ralf Baechle
Commit 351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 (kernel.org) rsp. b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (linux-mips.org): > From: Chris Dearman <chris@mips.com> > Date: Wed, 19 Sep 2007 00:58:24 +0100 > Subject: [PATCH] [MIPS] Allow setting of the cache attribute at run time. > > Slightly tacky, but there is a precedent in the sparc archirecture code. introduces the variable _page_cachable_default, which defaults to zero and. is used to create the prototype PTE for __kmap_atomic in arch/mips/mm/init.c:kmap_init before initialization in arch/mips/mm/c-r4k.c:coherency_setup, so the default value of 0 will be used as the CCA of kmap atomic pages which on many processors is not a defined CCA value and may result in writes to kmap_atomic pages getting corrupted. Debugged by Jon Fraser (jfraser@broadcom.com). Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Fix sign-extension bug in 32-bit kernel on 32-bit hardware.Ralf Baechle
Probably nobody does arithmetic on cp0 register values so this has never bitten. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP27: Get rid of #ident. Gcc 4.4.0 doesn't like it.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: uaccess: Switch lock annotations to might_fault().Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Make uaccess.h slightly more sparse friendly.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Make access_ok() sideeffect proof.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP27: Fix clash with NMI_OFFSET from hardirq.hThomas Bogendoerfer
There was already a define for NMI_OFFSET in asm/sn/addr.h, which now clashes with linux/hardirq.h. Rename the one in sn/addr.h to fix IP27 builds.. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Cavium: Add support for 8k and 32k page sizes.Ralf Baechle
Beyond the requirements of the architecture standard Cavium also supports 8k and 32k pages. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: David Daney <ddaney@caviumnetworks.com>
2009-05-14MIPS: Synchronize dma_map_page and dma_map_singleAtsushi Nemoto
Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single. This will reduce unnecessary writebacks and invalidates. [Ralf: make dma_unmap_page an inline function.] Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Enable CLO / CLZ instructions via separate CPU propertyRalf Baechle
This is useful for IDT RC32332, RC32334 and NEC VR5500 processors which do not implement the full MIPS32 / MIPS64 architecture. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Loongson 2 needs no hazard barriers.Zhang Le
Quoting from Loongson2FUserGuide.pdf: 5.22.1 Hazards The processor detects most of the pipeline hazards in hardware, including CP0 hazards and load hazards. No NOP instructions are required to correct instruction sequences. Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Do not include seccomp.h from compat.hAtsushi Nemoto
The compat.h does not need seccomp.h since TIF_32BIT was moved to thread_info.h This fixes a build error of 64-bit kernel without CONFIG_SECCOMP. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-by: : David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Fix build error if CONFIG_CEVT_R4K is undefined.Ralf Baechle
Introduced by 99aa5029937ee926e3b249369e208d7013cd381b. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Add Loongson cpu-feature-overrides.hZhang Le
I have taken Wu Zhangjin's and Philippe Vachon's version as references, did a little modification and tested on 16K page size kernel. It works well. Unfornately although it already has defined cpu_has_dc_aliases as 1, 4k page size still not working. More work needed here. Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: au1xxx-ide: Fix build with CONFIG_PMManuel Lauss
au1xxx_power_dev_t? is never defined; get rid of all PM stuff as well since it is not in the driver source anyway. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Alchemy: Add missing Au1200 GPIO203 interruptManuel Lauss
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Alchemy: Fix AU1100 interrupt numbers off-by-oneManuel Lauss
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: SMTC: Fix xxx_clockevent_init() naming conflict for SMTCKevin D. Kissell
Commit 779e7d41ad004946603da139da99ba775f74cb1c created a name collision in SMTC builds. The attached patch corrects this in a a not-too-terribly-ugly manner. Note that the SMTC case has to come first, because CEVT_R4K will also be true. Signed-off-by: Kevin D. Kissell <kevink@paralogos.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: SMTC: Bring set/clear/change_c0_## return value semantics uptodate.Kevin D. Kissell
Signed-off-by: Kevin D. Kissell <kevink@paralogos.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-04-08Merge branch 'next' into for-linusDmitry Torokhov
2009-04-06Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (53 commits) [MTD] struct device - replace bus_id with dev_name(), dev_set_name() [MTD] [NOR] Fixup for Numonyx M29W128 chips [MTD] mtdpart: Make ecc_stats more realistic. powerpc/85xx: TQM8548: Update DTS file for multi-chip support powerpc: NAND: FSL UPM: document new bindings [MTD] [NAND] FSL-UPM: Add wait flags to support board/chip specific delays [MTD] [NAND] FSL-UPM: add multi chip support [MTD] [NOR] Add device parent info to physmap_of [MTD] [NAND] Add support for NAND on the Socrates board [MTD] [NAND] Add support for 4KiB pages. [MTD] sysfs support should not depend on CONFIG_PROC_FS [MTD] [NAND] Add parent info for CAFÉ controller [MTD] support driver model updates [MTD] driver model updates (part 2) [MTD] driver model updates [MTD] [NAND] move gen_nand's probe function to .devinit.text [MTD] [MAPS] move sa1100 flash's probe function to .devinit.text [MTD] fix use after free in register_mtd_blktrans [MTD] [MAPS] Drop now unused sharpsl-flash map [MTD] ofpart: Check name property to determine partition nodes. ... Manually fix trivial conflict in drivers/mtd/maps/Makefile
2009-04-05Merge branch 'tracing-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits) tracing, net: fix net tree and tracing tree merge interaction tracing, powerpc: fix powerpc tree and tracing tree interaction ring-buffer: do not remove reader page from list on ring buffer free function-graph: allow unregistering twice trace: make argument 'mem' of trace_seq_putmem() const tracing: add missing 'extern' keywords to trace_output.h tracing: provide trace_seq_reserve() blktrace: print out BLK_TN_MESSAGE properly blktrace: extract duplidate code blktrace: fix memory leak when freeing struct blk_io_trace blktrace: fix blk_probes_ref chaos blktrace: make classic output more classic blktrace: fix off-by-one bug blktrace: fix the original blktrace blktrace: fix a race when creating blk_tree_root in debugfs blktrace: fix timestamp in binary output tracing, Text Edit Lock: cleanup tracing: filter fix for TRACE_EVENT_FORMAT events ftrace: Using FTRACE_WARN_ON() to check "freed record" in ftrace_release() x86: kretprobe-booster interrupt emulation code fix ... Fix up trivial conflicts in arch/parisc/include/asm/ftrace.h include/linux/memory.h kernel/extable.c kernel/module.c
2009-04-02Allow rwlocks to re-enable interruptsRobin Holt
Pass the original flags to rwlock arch-code, so that it can re-enable interrupts if implemented for that architecture. Initially, make __raw_read_lock_flags and __raw_write_lock_flags stubs which just do the same thing as non-flags variants. Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Signed-off-by: Robin Holt <holt@sgi.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: <linux-arch@vger.kernel.org> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02preadv/pwritev: MIPS: Add preadv(2) and pwritev(2) syscalls.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-api@vger.kernel.org> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-02Merge branch 'tracing/core-v2' into tracing-for-linusIngo Molnar
Conflicts: include/linux/slub_def.h lib/Kconfig.debug mm/slob.c mm/slub.c
2009-04-01bcm47xx: fix GPIO API return codesMichael Buesch
The GPIO API is supposed to return 0 or a negative error code, but the SSB GPIO functions return the bitmask of the GPIO register. Fix this by ignoring the bitmask and always returning 0. The SSB GPIO functions can't fail. Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumaskLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask: oprofile: Thou shalt not call __exit functions from __init functions cpumask: remove the now-obsoleted pcibus_to_cpumask(): generic cpumask: remove cpumask_t from core cpumask: convert rcutorture.c cpumask: use new cpumask_ functions in core code. cpumask: remove references to struct irqaction's mask field. cpumask: use mm_cpumask() wrapper: kernel/fork.c cpumask: use set_cpu_active in init/main.c cpumask: remove node_to_first_cpu cpumask: fix seq_bitmap_*() functions. cpumask: remove dangerous CPU_MASK_ALL_PTR, &CPU_MASK_ALL
2009-03-30MIPS: Alchemy: MIPS hazard workarounds are not required.Manuel Lauss
The Alchemy manuals state: "All pipeline hazards and dependencies are enforced by hardware interlocks so that any sequence of instructions is guaranteed to execute correctly. Therefore, it is not necessary to pad legacy MIPS hazards (such as load delay slots and coprocessor accesses) with NOPs." Run-tested on Au12x0, without any ill effects. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Alchemy: provide cpu feature overrides.Manuel Lauss
Add cpu feature override constants tailored for all Alchemy variants currently in existence. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
2009-03-30MIPS: Alchemy: unify CPU model constants.Manuel Lauss
This patch removes the various CPU_AU1??? model constants in favor of a single CPU_ALCHEMY one. All currently existing Alchemy models are identical in terms of cpu core and cache size/organization. The parts of the mips kernel which need to know the exact CPU revision extract it from the c0_prid register already; and finally nothing else in-tree depends on those any more. Should a new variant with slightly different "company options" and/or "processor revision" bits in c0_prid appear, it will be supported immediately (minus an exact model string in cpuinfo). Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Malta: make a needlessly global integer variable staticDmitri Vorobiev
The variable `mips_revision_corid' is needlessly defined global in arch/mips/mti-malta/malta-init.c, and this patch makes it static. Build-tested with malta_defconfig. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Au1000: convert to using gpiolibFlorian Fainelli
This patch converts the GPIO board code to use gpiolib. Signed-off-by: Florian Fainelli <florian@openwrt.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Stop using <asm-generic/int-l64.h>.Ralf Baechle
This fixes a few warnings - and triggers a few new ones which the rest of this patch fixes. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: __raw_spin_lock() may spin forever on ticket wrap.David Daney
If the lock is not acquired and has to spin *and* the second attempt to acquire the lock fails, the delay time is not masked by the ticket range mask. If the ticket number wraps around to zero, the result is that the lock sampling delay is essentially infinite (due to casting -1 to an unsigned int). The fix: Always mask the difference between my_ticket and the current ticket value before calculating the delay. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-30MIPS: Forward declare struct task_struct to avoid potencial warning.Ralf Baechle
2009-03-30cpumask: remove node_to_first_cpuRusty Russell
Everyone defines it, and only one person uses it (arch/mips/sgi-ip27/ip27-nmi.c). So just open code it there. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: linux-mips@linux-mips.org
2009-03-27Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2Ingo Molnar
Conflicts: arch/parisc/kernel/irq.c arch/x86/include/asm/fixmap_64.h arch/x86/include/asm/setup.h kernel/irq/handle.c Semantic merge: arch/x86/include/asm/fixmap.h Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-03-26Merge branch 'header-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'header-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (50 commits) x86: headers cleanup - setup.h emu101k1.h: fix duplicate include of <linux/types.h> compiler-gcc4: conditionalize #error on __KERNEL__ remove __KERNEL_STRICT_NAMES make netfilter use strict integer types make drm headers use strict integer types make MTD headers use strict integer types make most exported headers use strict integer types make exported headers use strict posix types unconditionally include asm/types.h from linux/types.h make linux/types.h as assembly safe Neither asm/types.h nor linux/types.h is required for arch/ia64/include/asm/fpu.h headers_check fix cleanup: linux/reiserfs_fs.h headers_check fix cleanup: linux/nubus.h headers_check fix cleanup: linux/coda_psdev.h headers_check fix: x86, setup.h headers_check fix: x86, prctl.h headers_check fix: linux/reinserfs_fs.h headers_check fix: linux/socket.h headers_check fix: linux/nubus.h ... Manually fix trivial conflicts in: include/linux/netfilter/xt_limit.h include/linux/netfilter/xt_statistic.h
2009-03-26Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller
Conflicts: drivers/net/wimax/i2400m/usb-notif.c
2009-03-26Merge commit 'v2.6.29' into core/header-fixesIngo Molnar
2009-03-23MIPS: Change {set,clear,change}_c0_<foo> to return old value.Ralf Baechle
This is more standard and useful and need for the following fix to work correctly. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-20[MTD] RBTX4939: add MTD supportAtsushi Nemoto
Add platform support for NOR flash chips on RBTX4939 board. This board has complex flash mappings, controlled by its DIPSW setting. [akpm@linux-foundation.org: Use min_t] Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Ralf Bächle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-20[MTD] [NAND] TXx9: add NDFMC supportAtsushi Nemoto
Add platform support for NAND Flash Memory Controller of TXx9 SoCs. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Acked-By: Ralf Bächle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-03-16Merge branches 'tracing/ftrace', 'tracing/syscalls' and 'linus' into ↵Ingo Molnar
tracing/core Conflicts: arch/parisc/kernel/irq.c
2009-03-13MIPS: Fix TIF_32BIT undefined problem when seccomp is disabledZhang Le
Signed-off-by: Zhang Le <r0bertz@gentoo.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-13Merge branch 'core/locking' into tracing/ftraceIngo Molnar
2009-03-11MIPS: NEC VR5500 processor support fixupShinya Kuribayashi
Current VR5500 processor support lacks of some functions which are expected to be configured/synthesized on arch initialization. Here're some VR5500A spec notes: * All execution hazards are handled in hardware. * Once VR5500A stops the operation of the pipeline by WAIT instruction, it could return from the standby mode only when either a reset, NMI request, or all enabled interrupts is/are detected. In other words, if interrupts are disabled by Status.IE=0, it keeps in standby mode even when interrupts are internally asserted. Notes on WAIT: The operation of the processor is undefined if WAIT insn is in the branch delay slot. The operation is also undefined if WAIT insn is executed when Status.EXL and Status.ERL are set to 1. * VR5500A core only implements the Load prefetch. With these changes, it boots fine. Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-03-10Merge branches 'tracing/doc', 'tracing/ftrace', 'tracing/printk' and 'linus' ↵Ingo Molnar
into tracing/core
2009-03-09Input: add driver for S1 button of rb532Phil Sutter
Mikrotik's Routerboard 532 has two builtin buttons, from which one triggers a hardware reset. The other one is accessible through GPIO pin 1. Sadly, this pin is being multiplexed with UART0 input, so enabling it as interrupt source (as implied by the gpio-keys driver) is not possible unless UART0 has been turned off. The later one though is a rather bad idea as the Routerboard is an embedded device with only a single serial port, so it's almost always used as serial console device. This patch adds a driver based on INPUT_POLLDEV, which disables the UART and reconfigures GPIO pin 1 temporarily while reading the button state. This procedure works fine and has been tested as part of another, unpublished driver for this device. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>