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Deng-Cheng Zhu 91f017372a MIPS, Perf-events: Work with irq_work 
This is the MIPS part of the following commit by Peter Zijlstra:

- e360adbe29
    irq_work: Add generic hardirq context callbacks

    Provide a mechanism that allows running code in IRQ context. It is
    most useful for NMI code that needs to interact with the rest of the
    system -- like wakeup a task to drain buffers.

    Perf currently has such a mechanism, so extract that and provide it as
    a generic feature, independent of perf so that others may also
    benefit.

    The IRQ context callback is generated through self-IPIs where
    possible, or on architectures like powerpc the decrementer (the
    built-in timer facility) is set to generate an interrupt immediately.

    Architectures that don't have anything like this get to do with a
    callback from the timer tick. These architectures can call
    irq_work_run() at the tail of any IRQ handlers that might enqueue such
    work (like the perf IRQ handler) to avoid undue latencies in
    processing the work.

For MIPSXX, we need to call irq_work_run() at the tail of the perf IRQ
handler as described above.

Reported-by: Wu Zhangjin <wuzhangjin@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@gmail.com>
To: fweisbec@gmail.com
To: will.deacon@arm.com
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: paulus@samba.org
Cc: mingo@elte.hu
Cc: acme@redhat.com
Cc: matt@console-pimps.org
Cc: sshtylyov@mvista.com,
Patchwork: http://patchwork.linux-mips.org/patch/2011/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-14 21:07:26 +01:00
..
dec MIPS: Make various locks static. 2010-02-27 12:53:30 +01:00
emma MIPS: EMMA2RH: Replace EMMA2RH_SW_IRQ_INTxx with EMMA2RH_SW_IRQ(n) 2010-08-05 13:26:04 +01:00
fw
ip32
lasat MIPS: Lasat: Fix compilation 2009-09-17 20:07:42 +02:00
mach-ar7 MIPS: AR7: Fix loops per jiffies on TNETD7200 devices 2010-12-16 18:10:56 +00:00
mach-ath79 MIPS: ath79: add common WMAC device for AR913X based boards 2011-01-18 19:30:28 +01:00
mach-au1x00 MIPS: au1000_eth: Get ethernet address from platform_data 2010-08-05 13:26:09 +01:00
mach-bcm47xx MIPS: BCM47xx: Use sscanf for parsing mac address 2010-12-16 18:10:59 +00:00
mach-bcm63xx mtd: add Broadcom BCM63xx image tag partition parser 2010-10-25 00:13:05 +01:00
mach-cavium-octeon MIPS: Octeon: Enable Read Inhibit / eXecute Inhibit on Octeon II. 2010-10-29 19:08:38 +01:00
mach-cobalt Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
mach-db1x00 MIPS: Alchemy: Extended DB1200 board support. 2010-02-27 12:53:00 +01:00
mach-dec
mach-emma2rh
mach-generic dma-mapping: rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-08-11 08:59:21 -07:00
mach-ip22 MIPS: IP22/28: Switch over to RTC class driver 2008-10-15 12:46:51 +01:00
mach-ip27 MIPS: Convert DMA to use dma-mapping-common.h 2010-10-29 19:08:31 +01:00
mach-ip28 MIPS: IP22/28: Switch over to RTC class driver 2008-10-15 12:46:51 +01:00
mach-ip32 MIPS: Convert DMA to use dma-mapping-common.h 2010-10-29 19:08:31 +01:00
mach-jazz MIPS: Convert DMA to use dma-mapping-common.h 2010-10-29 19:08:31 +01:00
mach-jz4740 MMC: Add support for the controller on JZ4740 SoCs. 2010-08-05 13:26:18 +01:00
mach-lasat
mach-loongson MIPS: Add missing #inclusions of <linux/irq.h> 2010-10-07 14:08:54 +01:00
mach-malta MIPS: Malta: Remove pointless use use of CONFIG_CPU_HAS_LLSC 2009-09-17 20:07:49 +02:00
mach-mipssim
mach-pb1x00 MIPS: Remove dead CONFIG_MTD_PB1550_BOOT, CONFIG_MTD_PB1550_USER 2010-08-05 13:26:00 +01:00
mach-pnx833x MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
mach-pnx8550
mach-powertv tree-wide: fix comment/printk typos 2010-11-01 15:38:34 -04:00
mach-rc32434 MIPS: RB532: Cleanup cpu-features-overrides 2009-06-17 11:06:26 +01:00
mach-rm
mach-sibyte MIPS: Sibyte: Apply M3 workaround only on affected chip types and versions. 2010-04-12 17:26:19 +01:00
mach-tx39xx
mach-tx49xx MIPS: TX49xx: Rename ARCH_KMALLOC_MINALIGN to ARCH_DMA_MINALIGN 2010-10-04 18:33:58 +01:00
mach-vr41xx
mach-wrppmc
mach-yosemite
mips-boards MIPS: GIC: Remove dependencies from Malta files. 2010-10-04 18:33:56 +01:00
octeon MIPS: Octeon: Add register definitions for EHCI / OHCI USB glue logic. 2010-10-29 19:08:43 +01:00
pci mips: remove dma64_addr_t usage 2010-10-27 18:03:17 -07:00
pmc-sierra/msp71xx MIPS: MSP71xx: Remove dead CONFIG_MTD_PMC_MSP_RAMROOT 2010-08-05 13:26:01 +01:00
sgi tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
sibyte MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
sn MIPS: IP27: Don't include <linux/topology.h> into <asm/sn/agent.h>. 2010-08-05 13:25:38 +01:00
txx9 MIPS: TXx9: Remove forced serial console setting 2010-02-27 12:53:22 +01:00
vr41xx Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
xtalk
abi.h MIPS: Move signal trampolines off of the stack. 2010-04-12 17:26:15 +01:00
addrspace.h
amon.h MIPS: CMP: activate CMP support 2009-07-03 15:45:26 +01:00
arch_hweight.h MIPS: Create and use asm/arch_hweight.h 2010-08-05 13:26:02 +01:00
asm-offsets.h kbuild: move asm-offsets.h to include/generated 2009-12-12 13:08:14 +01:00
asm.h
asmmacro-32.h
asmmacro-64.h
asmmacro.h MIPS: Use EI/DI for MIPS R2. 2008-12-12 18:12:23 +00:00
atomic.h MIPS: Get rid of branches to .subsections. 2010-10-29 19:08:24 +01:00
auxvec.h
barrier.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
bcache.h
bitops.h MIPS: Get rid of branches to .subsections. 2010-10-29 19:08:24 +01:00
bitsperlong.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
bootinfo.h MIPS: Add a platform hook for swiotlb setup. 2010-10-29 19:08:32 +01:00
branch.h
break.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
bug.h MIPS: Convert BUG() to use unreachable() 2009-12-05 09:10:12 -08:00
bugs.h MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users. 2009-06-24 18:34:39 +01:00
byteorder.h byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
cache.h MIPS: Implement __read_mostly 2011-01-18 19:30:28 +01:00
cachectl.h
cacheflush.h block: add helpers to run flush_dcache_page() against a bio and a request's pages 2009-11-26 09:16:19 +01:00
cacheops.h MIPS: RM7000: Add support for tertiary cache 2010-08-05 13:26:06 +01:00
cevt-r4k.h MIPS: Have a heart for a lonely, lost header file ... 2008-10-15 12:46:49 +01:00
checksum.h MIPS: uaccess: Switch lock annotations to might_fault(). 2009-05-14 13:50:28 +01:00
clock.h MIPS: Loongson 2F: Add CPU frequency scaling support 2009-12-17 01:57:20 +00:00
cmp.h
cmpxchg.h MIPS: Get rid of branches to .subsections. 2010-10-29 19:08:24 +01:00
compat-signal.h
compat.h compat: Make compat_alloc_user_space() incorporate the access_ok() 2010-09-14 16:08:45 -07:00
compiler.h
cop2.h MIPS: Don't place cu2 notifiers in __cpuinitdata 2010-10-04 18:34:00 +01:00
cpu-features.h MIPS: Update comment for cpu_has_clo_clz 2010-08-05 13:26:01 +01:00
cpu-info.h MIPS: Probe for presence of KScratch registers. 2011-01-18 19:30:22 +01:00
cpu.h MIPS: Fix regression on BCM4710 processor detection 2010-12-16 18:10:58 +00:00
cputime.h
current.h MIPS: Use generic current.h 2010-02-27 12:53:27 +01:00
debug.h
delay.h MIPS: Fix potencial build error in <asm/delay.h> 2009-09-17 20:07:41 +02:00
device.h MIPS: Convert DMA to use dma-mapping-common.h 2010-10-29 19:08:31 +01:00
div64.h MIPS: Rewrite <asm/div64.h> to work with gcc 4.4.0. 2009-05-14 13:50:29 +01:00
dma-mapping.h MIPS: Convert DMA to use dma-mapping-common.h 2010-10-29 19:08:31 +01:00
dma.h MIPS: Allow MAX_DMA32_PFN to be overridden. 2010-10-29 19:08:28 +01:00
ds1287.h Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
dsp.h
edac.h
elf.h MIPS: Don't clobber personality high bits. 2010-12-16 18:10:54 +00:00
emergency-restart.h
errno.h cfg80211: errno.h: define ERFKILL 2009-06-07 05:01:00 -07:00
fb.h
fcntl.h MIPS: 32-bit: Fix build failure in asm/fcntl.h 2010-10-18 16:59:04 +01:00
fixmap.h MIPS: Fix machine check exception in kmap_coherent() 2009-11-02 12:00:04 +01:00
floppy.h
fpregdef.h
fpu.h MIPS: Cleanup signal code initialization 2009-12-17 01:57:32 +00:00
fpu_emulator.h MIPS: Fix build breakage if CONFIG_DEBUG_FS is enabled. 2010-04-12 17:26:08 +01:00
ftrace.h MIPS: Loongson: Change the Email address of Wu Zhangjin 2010-02-27 12:53:12 +01:00
futex.h
gcmpregs.h MIPS: GIC: Random fixes and enhancements. 2009-11-02 12:00:06 +01:00
gic.h MIPS: GIC: Remove dependencies from Malta files. 2010-10-04 18:33:56 +01:00
gpio.h
gt64120.h
hardirq.h MIPS: Convert to asm-generic/hardirq.h 2009-09-17 20:07:48 +02:00
hazards.h MIPS: Alchemy: remove SOC_AU1X00 in favor of MIPS_ALCHEMY 2010-08-05 13:26:06 +01:00
highmem.h mm: stack based kmap_atomic() 2010-10-26 16:52:08 -07:00
hugetlb.h MIPS: Add support files for hugetlbfs. 2009-06-17 11:06:30 +01:00
hw_irq.h
i8253.h i8253: Convert i8253_lock to raw_spinlock 2010-03-02 10:28:38 +01:00
i8259.h MIPS: i8259: Convert IRQ controller lock to raw spinlock. 2010-02-27 12:53:38 +01:00
ide.h
inst.h MIPS: Add LDX and LWX instructions to uasm. 2011-01-18 19:30:23 +01:00
io.h MIPS: LD/SD o32 macro GAS fix update 2010-12-16 18:11:01 +00:00
ioctl.h MIPS: ioctl.h: Cleanup. 2009-06-17 11:06:28 +01:00
ioctls.h TTY: Add tty ioctl to figure device node of the system console. 2010-12-16 16:18:28 -08:00
ipcbuf.h
irq.h of/mips: Add device tree support to MIPS 2010-10-21 11:10:10 -06:00
irq_cpu.h
irq_gt641xx.h Update Yoichi Yuasa's e-mail address 2009-07-03 15:45:29 +01:00
irq_regs.h
irqflags.h Fix IRQ flag handling naming 2010-10-07 14:08:55 +01:00
isadep.h
jazz.h
jazzdma.h
jump_label.h MIPS: jump label: Add MIPS support. 2011-01-18 19:30:24 +01:00
Kbuild byteorder: make swab.h include asm/swab.h like a regular header 2009-01-14 19:56:50 -08:00
kdebug.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
kexec.h
kgdb.h kgdb,mips: Individual register get/set for mips 2010-08-05 09:22:21 -05:00
kmap_types.h kmap_types: make most arches use generic header file 2009-06-16 19:47:51 -07:00
kprobes.h MIPS: kprobe: Add support. 2010-08-05 13:26:29 +01:00
kspd.h
linkage.h
local.h MIPS: define local_xchg from xchg_local to atomic_long_xchg 2010-10-29 19:08:47 +01:00
local64.h arch: Implement local64_t 2010-06-09 11:12:36 +02:00
m48t37.h
mc146818-time.h set_rtc_mmss: show warning message only once 2011-01-13 08:03:07 -08:00
mc146818rtc.h
mips_machine.h MIPS: Add generic support for multiple machines within a single kernel 2011-01-18 19:30:21 +01:00
mips_mt.h
mipsmtregs.h
mipsprom.h
mipsregs.h MIPS: Add BMIPS CP0 register definitions 2010-10-29 19:08:52 +01:00
mman.h thp: mm: define MADV_NOHUGEPAGE 2011-01-13 17:32:47 -08:00
mmu.h MIPS: Preliminary VDSO 2010-04-12 17:26:14 +01:00
mmu_context.h MIPS: Use C0_KScratch (if present) to hold PGD pointer. 2011-01-18 19:30:22 +01:00
mmzone.h
module.h MIPS: Add Cavium OCTEON processor constants and CPU probe. 2009-01-11 09:57:22 +00:00
msc01_ic.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
msgbuf.h
mutex.h
nile4.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
paccess.h
page.h MIPS: Document why RELOC_HIDE is there. 2010-10-04 18:33:55 +01:00
param.h MIPS: Simplify param.h by using <asm-generic/param.h> 2010-02-27 12:53:04 +01:00
parport.h MIPS: Use generic parport.h 2010-02-27 12:53:27 +01:00
pci.h MIPS: Octeon: Disallow MSI-X interrupt and fall back to MSI interrupts. 2010-08-05 13:26:27 +01:00
percpu.h
perf_event.h MIPS, Perf-events: Work with irq_work 2011-03-14 21:07:26 +01:00
pgalloc.h MIPS: Two-level pagetables for 64-bit kernels with 64KB pages. 2010-02-27 12:53:03 +01:00
pgtable-32.h mm: remove pte_*map_nested() 2010-10-26 16:52:08 -07:00
pgtable-64.h MIPS: Make TASK_SIZE reflect proper size for both 32 and 64 bit processes. 2010-10-29 19:08:53 +01:00
pgtable-bits.h MIPS: Implement Read Inhibit/eXecute Inhibit 2010-02-27 12:53:26 +01:00
pgtable.h Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-03-01 09:15:15 -08:00
pmon.h
poll.h
posix_types.h
prefetch.h MIPS: NEC VR5500 processor support fixup 2009-03-11 21:11:07 +01:00
processor.h MIPS: Make TASK_SIZE reflect proper size for both 32 and 64 bit processes. 2010-10-29 19:08:53 +01:00
prom.h of/mips: Cleanup some include directives/files. 2010-10-21 11:10:11 -06:00
ptrace.h MIPS: kprobes: Define regs_return_value() 2010-08-05 13:26:28 +01:00
r4k-timer.h
r4kcache.h MIPS: Support 64-byte D-cache line size 2009-06-17 11:06:24 +01:00
reboot.h
reg.h MIPS: 64-bit: Fix o32 core dump 2009-07-03 15:45:27 +01:00
regdef.h
resource.h
rm9k-ocd.h
rtlx.h
scatterlist.h remove needless ISA_DMA_THRESHOLD 2010-08-07 18:15:50 +02:00
seccomp.h MIPS: Fix TIF_32BIT undefined problem when seccomp is disabled 2009-03-13 23:07:59 +01:00
sections.h
segment.h
sembuf.h
serial.h MIPS: Use generic serial.h 2010-02-27 12:53:27 +01:00
setup.h MIPS: Extend COMMAND_LINE_SIZE 2009-11-02 12:00:01 +01:00
sgialib.h MIPS: ARC: Cleanup unused definitions from sgialib.h 2010-02-27 12:53:45 +01:00
sgiarcs.h
sgidefs.h
shmbuf.h
shmparam.h
sigcontext.h headers_check fix: mips, sigcontext.h 2009-02-01 11:01:26 +05:30
siginfo.h Define _addr_lsb in siginfo_t for mips 2010-10-09 11:42:37 -07:00
signal.h asm-generic: rename termios.h, signal.h and mman.h 2009-06-11 21:01:52 +02:00
sim.h
smp-ops.h cpumask: arch_send_call_function_ipi_mask: mips 2009-09-24 09:34:45 +09:30
smp.h MIPS: SMP: Inline arch_send_call_function_{single_ipi,ipi_mask} 2009-09-30 21:47:00 +02:00
smtc.h
smtc_ipi.h MIPS: SMTC: Avoid queing multiple reschedule IPIs 2009-11-02 12:00:06 +01:00
smtc_proc.h
smvp.h
sni.h
socket.h net: Generalize socket rx gap / receive queue overflow cmsg 2009-10-12 13:26:31 -07:00
sockios.h
sparsemem.h MIPS: Nuke trailing blank lines 2010-02-27 12:53:14 +01:00
spinlock.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
spinlock_types.h MIPS: Optimize spinlocks. 2010-02-27 12:53:42 +01:00
spram.h MIPS: SPRAM: Clean up support code a little 2009-11-02 12:00:05 +01:00
stackframe.h MIPS: Loongson-2F: Use CONFIG_CPU_JUMP_WORKAROUNDS to control workarounds. 2010-04-30 20:52:58 +01:00
stacktrace.h
stat.h
statfs.h add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
string.h
suspend.h MIPS: Add hibernation support 2009-06-17 11:06:31 +01:00
swab.h MIPS: Define __arch_swab64 for all mips r2 cpus 2009-07-03 15:45:25 +01:00
sysmips.h
system.h MIPS: Get rid of branches to .subsections. 2010-10-29 19:08:24 +01:00
termbits.h tty: Add EXTPROC support for LINEMODE 2010-08-10 13:47:39 -07:00
termios.h MIPS: Add return value checks to user_termio_to_kernel_termios() 2009-01-30 21:32:57 +00:00
thread_info.h MIPS: IRQ: Add stackoverflow detection 2010-10-29 19:08:27 +01:00
time.h mips: Use generic mult/shift factor calculation for clocks 2009-11-13 20:46:24 +01:00
timex.h
titan_dep.h
tlb.h
tlbdebug.h
tlbflush.h
topology.h
traps.h
txx9irq.h
txx9pio.h
txx9tmr.h
types.h asm-generic: introduce asm/bitsperlong.h 2009-06-11 21:02:14 +02:00
uaccess.h MIPS: Make TASK_SIZE reflect proper size for both 32 and 64 bit processes. 2010-10-29 19:08:53 +01:00
uasm.h MIPS: Add LDX and LWX instructions to uasm. 2011-01-18 19:30:23 +01:00
ucontext.h MIPS: Use generic ucontext.h 2010-02-27 12:53:27 +01:00
unaligned.h MIPS: Avoid spurious make includecheck message 2009-09-30 21:47:02 +02:00
unistd.h MIPS: Hookup fanotify_init, fanotify_mark, and prlimit64 syscalls. 2010-10-04 18:33:59 +01:00
user.h
vdso.h MIPS: Preliminary VDSO 2010-04-12 17:26:14 +01:00
vga.h
vpe.h
war.h
watch.h
wbflush.h
xor.h