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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: RBTX4939: Fix typo in system nameAtsushi Nemoto
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: Compat: Use generic 32-bit wrapers for sys_timerfd_{g,s}ettimeDavid Daney
The LTP timerfd01 test is failing (blocking forever) on the 32-bit ABIs. We need to use the compat_* wrappers for these system calls. Signed-off-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: Print the actual detected I-cache associativity on bootup.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP32: Fix needlessly global symbols in arch/mips/sgi-ip32/ip32-irq.cDmitri Vorobiev
The following symbols are needlessly defined global: cpuerr_irq and memerr_irq. This patch makes the symbols static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP32: ip32_be_handler symbol is needlessly defined globalDmitri Vorobiev
The file arch/mips/sgi-ip32/ip32-berr.c needlessly defines the function ip32_be_handler() as global, and this patch makes it static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP32: Two symbols can become staticDmitri Vorobiev
The file arch/mips/mm/sc-rm7k.c needlessly defines two global symbols: rm7k_sc_ops rm7k_tcache_enabled This patch makes these symbols static. Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.com> 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>
2009-05-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6: xtensa: Fix linker script to include .literal sections xtensa: update s6105_defconfig for ccount calibration xtensa: implement ccount calibration for s6000 xtensa: fix wrong extern declaration renamed in code using it xtensa: register gpio chip before use xtensa: always use correct stack pointer for stack traces xtensa: Fix checksum header file xtensa: Fix architecture specific Kconfig
2009-05-13Merge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: SVM: Remove port 80 passthrough KVM: Make EFER reads safe when EFER does not exist KVM: Fix NX support reporting KVM: SVM: Fix cross vendor migration issue with unusable bit
2009-05-13powerpc/8xx: Update defconfigsKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-13powerpc/embedded6xx: Update defconfigsKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-13powerpc/86xx: Update defconfigsKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-13powerpc/85xx: Update defconfigsKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-13powerpc/83xx: Update defconfigsKumar Gala
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-05-13x86/function-graph: fix constraint for recording old return valueSteven Rostedt
After upgrading from gcc 4.2.2 to 4.4.0, the function graph tracer broke. Investigating, I found that in the asm that replaces the return value, gcc was using the same register for the old value as it was for the new value. mov (addr), old mov new, (addr) But if old and new are the same register, we clobber new with old! I first thought this was a bug in gcc 4.4.0 and reported it: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40132 Andrew Pinski responded (quickly), saying that it was correct gcc behavior and the code needed to denote old as an "early clobber". Instead of "=r"(old), we need "=&r"(old). [Impact: keep function graph tracer from breaking with gcc 4.4.0 ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-05-13xen: use header for EXPORT_SYMBOL_GPLRandy Dunlap
mmu.c needs to #include module.h to prevent these warnings: arch/x86/xen/mmu.c:239: warning: data definition has no type or storage class arch/x86/xen/mmu.c:239: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL' arch/x86/xen/mmu.c:239: warning: parameter names (without types) in function declaration [ Impact: cleanup ] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-12alpha: unbreak percpu againTejun Heo
Commit 9b8de7479d0dbab1ed98b5b015d44232c9d3d08e ("FRV: Fix the section attribute on UP DECLARE_PER_CPU()") cleaned up DECLARE/DEFINE_PER_CPU() macros and in the process made alpha percpu.h include include/asm-generic/percpu.h which breaks compilation due to duplicate definitions. Remove inclusion of generic asm helper file and define whatever necessary in alpha header proper. In the longer term, percpu definitions will be unified and all these little subtlties will be removed. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: David Howells <dhowells@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-05-12viocd: needs to depend on BLOCKAlexander Beregalov
Fix this build error when CONFIG_BLOCK is not set: drivers/cdrom/viocd.c: In function 'viocd_blk_open': drivers/cdrom/viocd.c:156: error: dereferencing pointer to incomplete type drivers/cdrom/viocd.c: In function 'viocd_blk_release': drivers/cdrom/viocd.c:162: error: dereferencing pointer to incomplete type drivers/cdrom/viocd.c: In function 'viocd_blk_ioctl': drivers/cdrom/viocd.c:170: error: dereferencing pointer to incomplete type drivers/cdrom/viocd.c: In function 'viocd_blk_media_changed': drivers/cdrom/viocd.c:176: error: dereferencing pointer to incomplete type ... Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-05-11xtensa: Fix linker script to include .literal sectionsChris Zankel
Fix resembles implementation from Marc Gauthier and Piet Denaly: In the Xtensa architecture, assembly generates literals which must always precede the code (the L32R instruction that loads them only uses negative PC-relative offsets). For any *.text section, literals are placed in a corresponding *.literal section. The linker script (vmlinux.lds) must place these in the correct order. It must also combine them, when the *.text section can be larger than L32R's 256 kB range. For example, this doesn't work: *(.literal) *(.text) because L32R instructions at the end of .text can't reach the literals. The linker can solve this if they are combined in parentheses, like this: *(.literal .text) because it is now allowed mix literals in .text to bring them in range. None of this is done by standard vmlinux.lds.h macros such as TEXT_TEXT and INIT_TEXT. To avoid replicating the logic of that header file, we instead post-process the generated linker script to convert *(xxx.text) to *(xxx.literal xxx.text) for the following text sections: .text .ref.text .*init.text .*exit.text .text.* using a sed script. To do this we must override the default rule for vmlinux.lds (see scripts/Makefile.build and the top-level Makefile) to insert this extra step. Signed-off-by: Marc Gauthier <marc@tensilica.com> Signed-off-by: Pete Delaney <piet@tensilica.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: update s6105_defconfig for ccount calibrationOskar Schirmer
The previous patch enabled ccount calibration for the s6000 variant. This patch updates the defconfig for the s6105 platform to reflect this change. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: implement ccount calibration for s6000Oskar Schirmer
Calculate core frequency from timers at boot time instead of assuming a fixed frequency. This is useful as the true frequency is set up by the boot loader, thus variable. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: fix wrong extern declaration renamed in code using itOskar Schirmer
The variable ccount_nsec has been renamed to nsec_per_ccount in arch/xtensa/kernel/time.c in 2b8aea74 (2007-08-05), but the fix failed to rename the variable in arch/xtensa/include/asm/timex.h as well. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: register gpio chip before useJohannes Weiner
Platform initialization sets up the LED heartbeat that is controlled via GPIO. Requesting the GPIO pins fails, however, as the chip is only initialized later by a device_initcall(). Fix this up by exporting the initialization function. Let the platform set up the chip before it starts using it. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: always use correct stack pointer for stack tracesJohannes Weiner
Commit '28a0ce7 xtensa: use correct stack pointer for stack traces' changed the stack tracer from always reading the stack pointer register to always using the saved value in the task descriptor. The author was too dense to consider the fact that the saved stack value is stale for a running process und thus unusable for 'current'. What we do now is to use the stack pointer register (a1) for when the task is unknown - we can't help it then - or when the task is 'current'. For everything else use the saved stack pointer value contained in the task descriptor. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: Fix checksum header fileChris Zankel
We need to add a "memory" dependency (barrier) in assembly macros that access (read or write) memory. Otherwise, the compiler might ill-optimize the order of memory accesses. Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-11xtensa: Fix architecture specific KconfigChris Zankel
Move a misplace endmenu marker to enable platform options and disable PCI and automatic calibrating for the XT2K board. The on-board PCI bridge is somewhat broken, anyway, and the calibrating relies on some whacky usage of the serial port. Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-12x86, 32-bit: fix kernel_trap_sp()Masami Hiramatsu
Use &regs->sp instead of regs for getting the top of stack in kernel mode. (on x86-64, regs->sp always points the top of stack) [ Impact: Oprofile decodes only stack for backtracing on i386 ] Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> [ v2: rename the API to kernel_stack_pointer(), move variable inside ] Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: systemtap@sources.redhat.com Cc: Harvey Harrison <harvey.harrison@gmail.com> Cc: Jan Blunck <jblunck@suse.de> Cc: Christoph Hellwig <hch@infradead.org> LKML-Reference: <20090511210300.17332.67549.stgit@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-11Merge branch 'for-linus' of git://repo.or.cz/cris-mirrorLinus Torvalds
* 'for-linus' of git://repo.or.cz/cris-mirror: CRISv32: Fix typo compile error in ARTPEC-3 gpio driver. CRIS: Wire up syscalls signalfd4 to writev. CRISv32: Remove obsolete vcs_hook.o from Makefile CRIS: Merge machine dependent boot/compressed and boot/rescue
2009-05-11x86: fix percpu_{to,from}_op()Jan Beulich
- the byte operand constraints were wrong for 32-bit - the to-op's input operands weren't properly parenthesized [ Impact: fix possible miscompilation or build failure ] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-05-11KVM: SVM: Remove port 80 passthroughAvi Kivity
KVM optimizes guest port 80 accesses by passthing them through to the host. Some AMD machines die on port 80 writes, allowing the guest to hard-lock the host. Remove the port passthrough to avoid the problem. Cc: stable@kernel.org Reported-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Tested-by: Piotr Jaroszyński <p.jaroszynski@gmail.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-05-11x86: mtrr: Fix high_width computation when phys-addr is >= 44bitYinghai Lu
found one system where cpu address line is 44bits, mtrr printout is not right: [ 0.000000] MTRR variable ranges enabled: [ 0.000000] 0 base 0 00000000 mask FF0 00000000 write-back [ 0.000000] 1 base 10 00000000 mask FFF 80000000 write-back [ 0.000000] 2 base 0 80000000 mask FFF 80000000 uncachable [ 0.000000] 3 base 0 7F800000 mask FFF FF800000 uncachable Li Zefan and Frederic pointed out the high_width could be -4 some how. It turns out when phys_addr is 44bit, size_or_mask will be ffffffff,00000000 so ffs(size_or_mask) will be 0. Try to check low 32 bit, to get correct high_width. Signed-off-by: Yinghai Lu <yinghai@kerne.org> Also-analyzed-by: Frederic Weisbecker <fweisbec@gmail.com> Also-analyzed-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Zhaolei <zhaolei@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Vegard Nossum <vegard.nossum@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> LKML-Reference: <4A026540.8060504@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-11KVM: Make EFER reads safe when EFER does not existAvi Kivity
Some processors don't have EFER; don't oops if userspace wants us to read EFER when we check NX. Cc: stable@kernel.org Signed-off-by: Avi Kivity <avi@redhat.com>
2009-05-11KVM: Fix NX support reportingAvi Kivity
NX support is bit 20, not bit 1. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-05-11KVM: SVM: Fix cross vendor migration issue with unusable bitAndre Przywara
AMDs VMCB does not have an explicit unusable segment descriptor field, so we emulate it by using "not present". This has to be setup before the fixups, because this field is used there. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-05-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits) bonding: fix panic if initialization fails IXP4xx: complete Ethernet netdev setup before calling register_netdev(). IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization. ipvs: Fix IPv4 FWMARK virtual services ipv4: Make INET_LRO a bool instead of tristate. net: remove stale reference to fastroute from Kconfig help text net: update skb_recycle_check() for hardware timestamping changes bnx2: Fix panic in bnx2_poll_work(). net-sched: fix bfifo default limit igb: resolve panic on shutdown when SR-IOV is enabled wimax: oops: wimax_dev_add() is the only one that can initialize the state wimax: fix oops if netlink fails to add attribute Bluetooth: Move dev_set_name() to a context that can sleep netfilter: ctnetlink: fix wrong message type in user updates netfilter: xt_cluster: fix use of cluster match with 32 nodes netfilter: ip6t_ipv6header: fix match on packets ending with NEXTHDR_NONE netfilter: add missing linux/types.h include to xt_LED.h mac80211: pid, fix memory corruption mac80211: minstrel, fix memory corruption cfg80211: fix comment on regulatory hint processing ...
2009-05-10x86: Fix false positive section mismatch warnings in the apic codeSam Ravnborg
[ Impact: reduce kernel image size a bit, annotate away warnings ] Signed-off-by: Sam Ravnborg <sam@ravnborg.org> [ modified and tested it ] Signed-off-by: Rakib Mullick <rakib.mullick@gmail.com> Cc: Marcin Slusarz <marcin.slusarz@gmail.com> LKML-Reference: <b9df5fa10905090235s4bfd26a8o979f93809c9727ad@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-05-09IXP4xx: use "ENODEV" instead of "ENOSYS" in module initialization.Krzysztof Hałasa
ENOSYS makes modutils complain about missing kernel module support. Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
2009-05-08Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: MCE: make cmci_discover_lock irq-safe x86: xen, i386: reserve Xen pagetables x86, kexec: fix crashdump panic with CONFIG_KEXEC_JUMP x86-64: finish cleanup_highmaps()'s job wrt. _brk_end x86: fix boot hang in early_reserve_e820() x86: Fix a typo in a printk message x86, srat: do not register nodes beyond e820 map
2009-05-08Merge branch 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblazeLinus Torvalds
* 'fixes-for-linus' of git://git.monstr.eu/linux-2.6-microblaze: microblaze: Fix return value for sys_ipc microblaze: Storage class should be before const qualifier
2009-05-08powerpc/fsl_soc: Remove mpc83xx_wdt_init, againAnton Vorontsov
commit b31a1d8b41513b96e9c7ec2f68c5734cef0b26a4 ("gianfar: Convert gianfar to an of_platform_driver"), possibly due merge issues, reintroduced completely unneded mpc83xx_wdt_init call, which I removed some time ago in commit 20d38e01d48019c578ab0ec1464454c0 ("powerpc/fsl_soc: remove mpc83xx_wdt code"). Remove it once again. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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