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2009-07-08powerpc/pseries: Use pr_devel() in pseries LPAR HPTE routinesMichael Ellerman
pr_debug() can now result in code being generated even when DEBUG is not defined. That's not really desirable in some places. In particular, pSeries_lpar_hpte_insert() goes from 185 instructions to 77 instructions as a result of this patch. Luckily that code isn't called very often ... With CONFIG_DYNAMIC_DEBUG=y: size before: text data bss dec hex filename 7284 1552 296 9132 23ac platforms/pseries/lpar.o size after: text data bss dec hex filename 5806 1096 296 7198 1c1e platforms/pseries/lpar.o Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-07-08Merge commit 'jwb/merge' into mergeBenjamin Herrenschmidt
2009-07-07[S390] define KTIME_SCALAR for 32-bit s390Martin Schwidefsky
32-bit s390 has efficient support for 64/32-bit conversions, define KTIME_SCALAR to enable the use of the plain scalar nanosecond based representation of ktime. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] add generic atomic64 support for 31 bitHeiko Carstens
Performance counters need 64 bit atomic operations. To keep the patch small we use the simple generic atomic64_t implementation. The native implementation follows with the next kernel. Fixes this build bug: In file included from kernel/sched.c:42: include/linux/perf_counter.h:427: error: expected specifier-qualifier-list before 'atomic64_t' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] set SCHED_OMIT_FRAME_POINTER for s390Martin Schwidefsky
The frame pointer is useless for s390 in the sched.c code. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] add __ucmpdi2() helper functionHeiko Carstens
Provide __ucmpdi2() helper function on 31 bit so we don't run again and again in compile errors like this one: kernel/built-in.o: In function `T.689': perf_counter.c:(.text+0x56c86): undefined reference to `__ucmpdi2' Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] perf_counter build fixHeiko Carstens
Add PERF_COUNTER_INDEX_OFFSET define to fix this build bug: kernel/perf_counter.c: In function 'perf_counter_index': kernel/perf_counter.c:1889: error: 'PERF_COUNTER_INDEX_OFFSET' undeclared Same fix as for FRV since s390 doesn't support hw counters. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] shutdown actions: save/return rc from init functionFrank Munzert
We always returned -EINVAL when setting of a shutdown action failed. This was misleading, if for example the hardware did not support the shutdown action. Now we save each shutdown action's init return code and return it when the action is being set. Signed-off-by: Frank Munzert <munzert@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07[S390] udelay: disable lockdep to avoid false positivesHeiko Carstens
Our udelay implementation enables interrupts to receive a special timer interrupt regardless of the context it is called from. This might lead to false positive lockdep reports. Since lockdep isn't aware of the fact that only a single interrupt source is enabled it warns about possible deadlocks that in reality won't happen, like the one below. To fix this disable lockdep before enabling interrupts. [ 254.040888] ================================= [ 254.040904] [ INFO: inconsistent lock state ] [ 254.040910] 2.6.30 #9 [ 254.040914] --------------------------------- [ 254.040920] inconsistent {IN-HARDIRQ-W} -> {HARDIRQ-ON-W} usage. [ 254.040927] swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 254.040934] (sch->lock){?.-...}, at: [<00000000002e4778>] ccw_device_timeout+0x48/0x2f0 [ 254.040961] {IN-HARDIRQ-W} state was registered at: [ 254.040969] [<0000000000096f74>] __lock_acquire+0x9d4/0x188c [ 254.040985] [<0000000000097f68>] lock_acquire+0x13c/0x16c [ 254.040998] [<00000000004527e0>] _spin_lock+0x74/0xb8 [ 254.041016] [<0000000000457eb2>] do_IRQ+0xde/0x208 [ 254.041031] [<000000000002d190>] io_return+0x0/0x8 [ 254.041049] [<0000000000029faa>] vtime_stop_cpu+0xbe/0x114 [ 254.041066] irq event stamp: 259629 [ 254.041076] hardirqs last enabled at (259628): [<000000000045238e>] _spin_unlock_irq+0x5e/0x9c [ 254.041095] hardirqs last disabled at (259629): [<000000000045292e>] _spin_lock_irq+0x4a/0xc4 [ 254.041126] softirqs last enabled at (259614): [<000000000006500e>] __do_softirq+0x296/0x2b0 [ 254.041137] softirqs last disabled at (259619): [<0000000000024cf6>] do_softirq+0x102/0x108 [ 254.041147] [ 254.041148] other info that might help us debug this: [ 254.041153] 2 locks held by swapper/0: [ 254.041157] #0: (&priv->timer){+.-...}, at: [<000000000006bf9a>] run_timer_softirq+0x19a/0x340 [ 254.041170] #1: (sch->lock){?.-...}, at: [<00000000002e4778>] ccw_device_timeout+0x48/0x2f0 [ 254.041182] [ 254.041310] Call Trace: [ 254.041313] ([<00000000000174fc>] show_trace+0x16c/0x170) [ 254.041321] [<0000000000017578>] show_stack+0x78/0x104 [ 254.041327] [<000000000044d0ca>] dump_stack+0xc6/0xd4 [ 254.041342] [<00000000000949b4>] print_usage_bug+0x1c8/0x1fc [ 254.041353] [<0000000000094e8a>] mark_lock+0x4a2/0x670 [ 254.041364] [<00000000000950e2>] mark_held_locks+0x8a/0xb4 [ 254.041375] [<0000000000095398>] trace_hardirqs_on_caller+0x74/0x1ac [ 254.041388] [<00000000000954fa>] trace_hardirqs_on+0x2a/0x38 [ 254.041402] [<000000000025f1ec>] __udelay_disabled+0xac/0xfc [ 254.041419] [<000000000025f432>] __udelay+0x12a/0x148 [ 254.041433] [<00000000002d64d8>] cio_commit_config+0x170/0x290 [ 254.041451] [<00000000002d6978>] cio_disable_subchannel+0x120/0x1cc [ 254.041468] [<00000000002e32a4>] ccw_device_recog_done+0x54/0x2f4 [ 254.041485] [<00000000002e3638>] ccw_device_sense_id_done+0x50/0x90 [ 254.041508] [<00000000002e615a>] snsid_callback+0xfa/0x3a8 [ 254.041515] [<00000000002dd96c>] ccwreq_stop+0x80/0x90 [ 254.041523] [<00000000002dda8e>] ccw_request_timeout+0xc2/0xd0 [ 254.041530] [<00000000002e2f70>] ccw_device_request_event+0x58/0x90 [ 254.041537] [<00000000002e47ae>] ccw_device_timeout+0x7e/0x2f0 [ 254.041555] [<000000000006c02a>] run_timer_softirq+0x22a/0x340 [ 254.041566] [<0000000000064eb0>] __do_softirq+0x138/0x2b0 [ 254.041578] [<0000000000024cf6>] do_softirq+0x102/0x108 [ 254.041590] [<00000000000647ce>] irq_exit+0xee/0x114 [ 254.041603] [<0000000000457d88>] do_extint+0x130/0x17c [ 254.041617] [<000000000002d41e>] ext_no_vtime+0x1e/0x22 [ 254.041631] [<0000000000029faa>] vtime_stop_cpu+0xbe/0x114 [ 254.041646] ([<0000000000029f58>] vtime_stop_cpu+0x6c/0x114) [ 254.041662] [<000000000001d842>] cpu_idle+0x122/0x1c0 [ 254.041679] [<00000000004482c6>] start_secondary+0xce/0xe0 [ 254.041696] [<0000000000000000>] 0x0 [ 254.041715] [<0000000000000000>] 0x0 [ 254.041745] INFO: lockdep is turned off. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2009-07-07Merge branch 'master' of ↵Paul Mundt
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.31
2009-07-06[CPUFREQ] Powernow-k8: support family 0xf with 2 low p-statesMark Langsdorf
Provide support for family 0xf processors with 2 P-states below the elevator voltage. Remove the checks that prevent this configuration from being supported and increase the transition voltage to prevent errors during the transition. Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: Dave Jones <davej@redhat.com>
2009-07-06Merge 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: fix usage of bios intcall() x86: Remove unused function lapic_watchdog_ok() x86: Remove unused variable disable_x2apic x86, kvm: Fix section mismatches in kvm.c x86: Add missing annotation to arch/x86/lib/copy_user_64.S::copy_to_user x86: Fix fixmap page order for FIX_TEXT_POKE0,1 amd-iommu: set evt_buf_size correctly amd-iommu: handle alias entries correctly in init code x86: Fix printk call in print_local_apic() x86: Declare check_efer() before it gets used x86: Mark device_nb as static and fix NULL noise x86: Remove double declaration of MSR_P6_EVNTSEL0 and MSR_P6_EVNTSEL1 xen: Use kcalloc() in xen_init_IRQ() x86: Fix fixmap ordering x86: Fix symbol annotation for arch/x86/lib/clear_page_64.S::clear_page_c
2009-07-06Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] amba: fix amba device resources [ARM] pgtable: file pte layout documentation [ARM] pgtable: swp pte layout documentation, definitions, and check [ARM] export __cpu_flush_dcache_page [ARM] 5576/1: Update kb9202_defconfig [ARM] 5581/1: U300 clock updates [ARM] 5579/1: Updated U300 defconfig
2009-07-06Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: Fix IRQ swizzling for ARI-enabled devices ia64/PCI: adjust section annotation for pcibios_setup() x86/PCI: get root CRS before scanning children x86/PCI: fix boundary checking when using root CRS PCI MSI: Fix restoration of MSI/MSI-X mask states in suspend/resume PCI MSI: Unmask MSI if setup failed PCI MSI: shorten PCI_MSIX_ENTRY_* symbol names PCI: make pci_name() take const argument PCI: More PATA quirks for not entering D3 PCI: fix kernel-doc warnings PCI: check if bus has a proper bridge device before triggering SBR PCI: remove pci_dac_dma_... APIs on mn10300 PCI ECRC: Remove unnecessary semicolons PCI MSI: Return if alloc_msi_entry for MSI-X failed
2009-07-06Merge 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 cast warning for init.c microblaze: Wire up new syscalls microblaze: use generic syscalls.h microblaze: clean up signal handling microblaze: convert all simple headers to use asm-generic microblaze: use the generic lib/checksum.c microblaze: fall back on generic header files for the ABI
2009-07-06Merge git://git.infradead.org/iommu-2.6Linus Torvalds
* git://git.infradead.org/iommu-2.6: intel-iommu: Don't use identity mapping for PCI devices behind bridges intel-iommu: Use iommu_should_identity_map() at startup time too. intel-iommu: No mapping for non-PCI devices intel-iommu: Restore DMAR_BROKEN_GFX_WA option for broken graphics drivers intel-iommu: Add iommu_should_identity_map() function intel-iommu: Fix reattaching of devices to identity mapping domain intel-iommu: Don't set identity mapping for bypassed graphics devices intel-iommu: Fix dma vs. mm page confusion with aligned_nrpages()
2009-07-06gcov: exclude code operating in userspace from profilingPeter Oberparleiter
Fix for this issue on x86_64: rostedt@goodmis.org wrote: > On bootup of the latest kernel my init segfaults. Debugging it, > I found that vread_tsc (a vsyscall) increments some strange > kernel memory: > > 0000000000000000 <vread_tsc>: > 0: 55 push %rbp > 1: 48 ff 05 00 00 00 00 incq 0(%rip) > # 8 <vread_tsc+0x8> > 4: R_X86_64_PC32 .bss+0x3c > 8: 48 89 e5 mov %rsp,%rbp > b: 66 66 90 xchg %ax,%ax > e: 48 ff 05 00 00 00 00 incq 0(%rip) > # 15 <vread_tsc+0x15> > 11: R_X86_64_PC32 .bss+0x44 > 15: 66 66 90 xchg %ax,%ax > 18: 48 ff 05 00 00 00 00 incq 0(%rip) > # 1f <vread_tsc+0x1f> > 1b: R_X86_64_PC32 .bss+0x4c > 1f: 0f 31 rdtsc > > > Those "incq" is very bad to happen in vsyscall memory, since > userspace can not modify it. You need to make something prevent > profiling of vsyscall memory (like I do with ftrace). Signed-off-by: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Reported-by: Steven Rostedt <rostedt@goodmis.org> Tested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-06microblaze: Fix cast warning for init.cMichal Simek
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: Wire up new syscallsMichal Simek
Wire up new syscalls rt_tgsigqueueinfo and perf_counter_open. Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: use generic syscalls.hArnd Bergmann
The prototypes in syscalls.h all make sense for microblaze, but for some of them, the actual implementation in sys_microblaze.c needs to be adapted. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: clean up signal handlingArnd Bergmann
When legacy signal handling is disabled, the arch/microblaze/kernel/signal.c implementation can be much simpler, as most of it is handled generically from kernel/signal.c. This is also a prerequisite for using the generic asm/unistd.h, which does not provide __NR_sigreturn, because this macro is referenced by the current signal.c implementation. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: convert all simple headers to use asm-genericRemis Lima Baima
All the simple microblaze header files were adapted to use their asm-generic implementations. These files are more simple and were quite straightforward to change. fb.h, vga.h and parport.h previously did not exist, using the generic version makes it possible to build more drivers successfully in allyesonfig. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: use the generic lib/checksum.cRemis Lima Baima
The microblaze checksum code is mostly identical to the asm-generic+lib version, so use that instead. Signed-off-by: Remis Lima Baima <remis.developer@googlemail.com> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-06microblaze: fall back on generic header files for the ABIArnd Bergmann
Almost all of the ABI relevant header files now have generic versions, so use those now in order to reduce the amount of architecture specific code. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-07-05[ARM] pgtable: file pte layout documentationRussell King
Document the layout of our file PTE entries. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-05[ARM] pgtable: swp pte layout documentation, definitions, and checkRussell King
Document the layout of our swp PTE entries, adding definitions for the bit masks/shifts/sizes, and implement MAX_SWAPFILES_CHECK() such that we fail to build if we are unable to properly encode the swp type field. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-05[ARM] export __cpu_flush_dcache_pageRussell King
Now required for libsas: Kernel: arch/arm/boot/Image is ready Kernel: arch/arm/boot/zImage is ready Building modules, stage 2. MODPOST 1096 modules ERROR: "xscale_flush_kern_dcache_page" [drivers/scsi/libsas/libsas.ko] undefined! Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-05powerpc/44x: Fix build error with -Werror for Warp platformJosh Boyer
With -Werror enabled during the build, the warp.c file fails to build due to the temp_isr function not containing a return statement. This fixes the build error and documents that the function never returns. Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-06powerpc/4xx: Have Warp take advantage of GPIO LEDs default-state = keepSean MacLennan
The GPIO LEDS driver now has a default state of "keep". Update the Warp DTS and platform file to take advantage of this new state. This removes the hardcoding of the two LEDs on the Warp. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-06powerpc/44x: Update Warp defconfigSean MacLennan
* Enable GPIO LEDS and LED triggers * Move to SLUB * Enable HOTPLUG * Enable timestamps on printks * Enable UBIFS * Enable in-kernel config Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2009-07-04x86: fix usage of bios intcall()Akinobu Mita
Some intcall() misuses the input biosregs as output in cf06de7b9cdd3efee7a59dced1977b3c21d43732 This fixes the problem vga=ask boot option doesn't show enough modes. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> LKML-Reference: <20090701021307.GA3127@localhost.localdomain> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-07-04Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6: (27 commits) parisc: use generic atomic64 on 32-bit parisc: superio: fix build breakage parisc: Fix PCI resource allocation on non-PAT SBA machines parisc: perf: wire up sys_perf_counter_open parisc: add task_pt_regs macro parisc: wire sys_perf_counter_open to sys_ni_syscall parisc: inventory.c, fix bloated stack frame parisc: processor.c, fix bloated stack frame parisc: fix compile warning in mm/init.c parisc: remove dead code from sys_parisc32.c parisc: wire up rt_tgsigqueueinfo parisc: ensure broadcast tlb purge runs single threaded parisc: fix "delay!" timer handling parisc: fix mismatched parenthesis in memcpy.c parisc: Fix gcc 4.4 warning in lba_pci.c parisc: add parameter to read_cr16() parisc: decode_exc.c should include kernel.h parisc: remove obsolete hw_interrupt_type parisc: fix irq compile bugs in arch/parisc/kernel/irq.c parisc: advertise PCI devs after "assign_resources" ... Manually fixed up trivial conflicts in tools/perf/perf.h due to addition of SH vs HPPA perf-counter support.
2009-07-04Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Fix CONFIG_FLATMEM version of pfn_valid() MIPS: Reorganize Cavium OCTEON PCI support. Update Yoichi Yuasa's e-mail address MIPS: Allow suspend and hibernation again on uniprocessor kernels. MIPS: 64-bit: Fix o32 core dump MIPS: BC47xx: Fix SSB irq setup MIPS: CMP: Update sync-r4k for current kernel MIPS: CMP: Move gcmp_probe to before the SMP ops MIPS: CMP: activate CMP support MIPS: CMP: Extend IPI handling to CPU number MIPS: CMP: Extend the GIC IPI interrupts beyond 32 MIPS: Define __arch_swab64 for all mips r2 cpus MIPS: Update VR41xx GPIO driver to use gpiolib MIPS: Hookup new syscalls sys_rt_tgsigqueueinfo and sys_perf_counter_open. MIPS: Malta: Remove unnecessary function prototypes MIPS: MT: Remove unnecessary semicolons MIPS: Add support for Texas Instruments AR7 System-on-a-Chip
2009-07-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes: kbuild: finally remove the obsolete variable $TOPDIR gitignore: ignore scripts/ihex2fw Kbuild: Disable the -Wformat-security gcc flag gitignore: ignore gcov output files kbuild: deb-pkg ship changelog Add new __init_task_data macro to be used in arch init_task.c files. asm-generic/vmlinux.lds.h: shuffle INIT_TASK* macro names in vmlinux.lds.h Add new macros for page-aligned data and bss sections. asm-generic/vmlinux.lds.h: Fix up RW_DATA_SECTION definition.
2009-07-05sh: add r8a66597 usb0 host to the se7724 boardMagnus Damm
Add USB host support for port CN27 on the Solution Engine 7724 board. The r8a66597-hcd driver is hooked up as a platform device and some registers are configured to enable the USB host function. The hardware driving the USB port is the on-chip USB0 block in the sh7724 processor configured as USB host controller. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-07-04intel-iommu: Restore DMAR_BROKEN_GFX_WA option for broken graphics driversDavid Woodhouse
We need to give people a little more time to fix the broken drivers. Re-introduce this, but tied in properly with the 'iommu=pt' support this time. Change the config option name and make it default to 'no' too. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2009-07-04x86: atomic64: Inline atomic64_read() againEric Dumazet
Now atomic64_read() is light weight (no register pressure and small icache), we can inline it again. Also use "=&A" constraint instead of "+A" to avoid warning about unitialized 'res' variable. (gcc had to force 0 in eax/edx) $ size vmlinux.prev vmlinux.after text data bss dec hex filename 4908667 451676 1684868 7045211 6b805b vmlinux.prev 4908651 451676 1684868 7045195 6b804b vmlinux.after Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> LKML-Reference: <4A4E1AA2.30002@gmail.com> [ Also fix typo in atomic64_set() export ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-03x86: atomic64: Clean up atomic64_sub_and_test() and atomic64_add_negative()Ingo Molnar
Linus noticed that the variable name 'old_val' is confusingly named in these functions - the correct naming is 'new_val'. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> LKML-Reference: <alpine.LFD.2.01.0907030942260.3210@localhost.localdomain> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-03x86: atomic64: Improve atomic64_xchg()Ingo Molnar
Remove the read-first logic from atomic64_xchg() and simplify the loop. This function was the last user of __atomic64_read() - remove it. Also, change the 'real_val' assumption from the somewhat quirky 1ULL << 32 value to the (just as arbitrary, but simpler) value of 0. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> LKML-Reference: <tip-05118ab8859492ac9ddda0154cf90e37b0a4a0b0@git.kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-03x86: atomic64: Export APIs to modulesIngo Molnar
atomic64_t primitives are used by a handful of drivers, so export the APIs consistently. These were inlined before. Also mark atomic64_32.o a core object, so that the symbols are available even if not linked to core kernel pieces. Cc: Eric Dumazet <eric.dumazet@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> LKML-Reference: <tip-05118ab8859492ac9ddda0154cf90e37b0a4a0b0@git.kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-07-03MIPS: Fix CONFIG_FLATMEM version of pfn_valid()Ralf Baechle
For systems which do not define PHYS_OFFSET as 0 pfn_valid() may falsely have returned 0 on most configurations. Bug introduced by commit 752fbeb2e3555c0d236e992f1195fd7ce30e728d (linux-mips.org) rsp. 6f284a2ce7b8bc49cb8455b1763357897a899abb (kernel.org) titled "[MIPS] FLATMEM: introduce PHYS_OFFSET." Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: Reorganize Cavium OCTEON PCI support.David Daney
Move the cavium PCI files to the arch/mips/pci directory. Also cleanup comment formatting and code layout. Code from pci-common.c, was moved into other files. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03Update Yoichi Yuasa's e-mail addressYoichi Yuasa
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: Allow suspend and hibernation again on uniprocessor kernels.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Pavel Machek <pavel@ucw.cz>
2009-07-03MIPS: 64-bit: Fix o32 core dumpYong Zhang
If an o32 process generates a core dump on a 64 bit kernel, the core file will not be correctly recognized. This is because ELF_CORE_COPY_REGS and ELF_CORE_COPY_TASK_REGS are not correctly defined for o32 and will use the default register set which would be CONFIG_64BIT in asm/elf.h. So we'll switch to use the right register defines in this situation by checking for WANT_COMPAT_REG_H and use the right defines of ELF_CORE_COPY_REGS and ELF_CORE_COPY_TASK_REGS. [Ralf: made ELF_CORE_COPY_TASK_REGS() bullet-proof against funny arguments.] Signed-off-by: Yong Zhang <yong.zhang@windriver.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: CMP: Update sync-r4k for current kernelTim Anderson
This revises the sync-4k so it will boot and operate since the removal of expirelo from the timer code. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: CMP: Move gcmp_probe to before the SMP opsTim Anderson
This is to move the gcmp_probe call to before the use of and selection of the smp_ops functions. This allows malta with 1004K to work. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: CMP: activate CMP supportTim Anderson
Most of the CMP support was added before, this mostly correct compile problems but adds a platform specific translation for the interrupt number based on cpu number. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: CMP: Extend IPI handling to CPU numberTim Anderson
This takes the current IPI interrupt assignment from the fix number of 4 to the number of CPUs defined in the system. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-07-03MIPS: CMP: Extend the GIC IPI interrupts beyond 32Tim Anderson
This patch extends the GIC interrupt handling beyond the current 32 bit range as well as extending the number of interrupts based on the number of CPUs. Signed-off-by: Tim Anderson <tanderson@mvista.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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