Paul Mackerras b0d278b7d3 powerpc/perf_event: Reduce latency of calling perf_event_do_pending ... Commit 0fe1ac48 ("powerpc/perf_event: Fix oops due to perf_event_do_pending call") moved the call to perf_event_do_pending in timer_interrupt() down so that it was after the irq_enter() call. Unfortunately this moved it after the code that checks whether it is time for the next decrementer clock event. The result is that the call to perf_event_do_pending() won't happen until the next decrementer clock event is due. This was pointed out by Milton Miller. This fixes it by moving the check for whether it's time for the next decrementer clock event down to the point where we're about to call the event handler, after we've called perf_event_do_pending. This has the side effect that on old pre-Core99 Powermacs where we use the ppc_n_lost_interrupts mechanism to replay interrupts, a replayed interrupt will incur a little more latency since it will now do the code from the irq_enter down to the irq_exit, that it used to skip. However, these machines are now old and rare enough that this doesn't matter. To make it clear that ppc_n_lost_interrupts is only used on Powermacs, and to speed up the code slightly on non-Powermac ppc32 machines, the code that tests ppc_n_lost_interrupts is now conditional on CONFIG_PMAC as well as CONFIG_PPC32. Signed-off-by: Paul Mackerras <paulus@samba.org> Cc: stable@kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2010-08-31 11:35:13 +10:00
..
vdso32	powerpc: Rework VDSO gettimeofday to prevent time going backwards	2010-07-28 21:06:47 +02:00
vdso64	powerpc: Rework VDSO gettimeofday to prevent time going backwards	2010-07-28 21:06:47 +02:00
.gitignore
align.c	powerpc: Handle VSX alignment faults correctly in little-endian mode	2009-12-18 14:55:43 +11:00
asm-offsets.c	powerpc: Rework VDSO gettimeofday to prevent time going backwards	2010-07-28 21:06:47 +02:00
audit.c
btext.c	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
cacheinfo.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
cacheinfo.h	powerpc: Rewrite sysfs processor cache info code	2009-01-08 16:25:10 +11:00
clock.c
compat_audit.c
cpu_setup_6xx.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
cpu_setup_44x.S	AMCC PPC 460SX redwood SoC platform initial framework	2009-02-14 14:41:29 -05:00
cpu_setup_fsl_booke.S	powerpc/fsl-booke: Enable L1 cache on e500v1/e500v2/e500mc CPUs	2009-06-15 21:45:30 -05:00
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c	powerpc/47x: Remove redundant line from cputable.c	2010-08-23 07:37:01 -04:00
crash.c	powerpc/kdump: Stop all other CPUs before running crash handlers	2010-08-24 15:26:27 +10:00
crash_dump.c	Merge commit 'gcl/next' into next	2010-08-04 10:26:03 +10:00
dbell.c	powerpc/book3e: Resend doorbell exceptions to ourself	2010-07-09 16:11:19 +10:00
dma-iommu.c	powerpc: Change archdata dma_data to a union	2009-09-24 15:31:43 +10:00
dma-swiotlb.c	of: Merge of_platform_bus_type with platform_bus_type	2010-07-24 09:57:51 -06:00
dma.c	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
e500-pmu.c	powerpc/perf: e500 support	2010-03-05 03:04:08 -06:00
entry_32.S	powerpc/47x: Base ppc476 support	2010-05-05 09:11:10 -04:00
entry_64.S	powerpc/perf_event: Fix oops due to perf_event_do_pending call	2010-05-12 14:34:00 +10:00
exceptions-64e.S	powerpc/book3e: Fix single step when using HW page tables	2010-07-14 14:13:51 +10:00
exceptions-64s.S	powerpc, hw_breakpoints: Implement hw_breakpoints for 64-bit server processors	2010-06-22 19:40:50 +10:00
firmware.c	powerpc: Make powerpc_firmware_features __read_mostly	2010-02-09 13:56:07 +11:00
fpu.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
fsl_booke_entry_mapping.S	powerpc/fsl-booke: Fix address issue when using relocatable kernels	2010-07-11 11:04:08 -05:00
ftrace.c	Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2009-06-20 10:56:46 -07:00
head_8xx.S	powerpc/8xx: Use SPRG2 and DAR registers to stash r11 and cr.	2010-04-07 18:00:34 +10:00
head_32.S	KVM: PPC: Add KVM intercept handlers	2010-05-17 12:18:52 +03:00
head_40x.S	powerpc: Use names rather than numbers for SPRGs (v2)	2009-08-20 10:12:27 +10:00
head_44x.S	powerpc/47x: Make sure mcsr is cleared before enabling machine check interrupts	2010-08-23 07:36:58 -04:00
head_64.S	powerpc: Initialise paca->kstack before early_setup_secondary	2010-08-24 15:26:31 +10:00
head_booke.h	powerpc/booke: Add Stack Marking support to Booke Exception Prolog	2010-05-05 08:01:52 -04:00
head_fsl_booke.S	powerpc/kexec: Add support for FSL-BookE	2010-05-24 21:25:32 -05:00
hw_breakpoint.c	powerpc, hw_breakpoint: Tell generic code we have no instruction breakpoints	2010-06-30 13:54:58 +10:00
ibmebus.c	powerpc: remove references to of_device and to_of_device	2010-07-24 09:58:21 -06:00
idle.c	powerpc: Re-enable preemption before cpu_die()	2010-08-24 15:26:29 +10:00
idle_6xx.S
idle_book3e.S	powerpc/book3e: Add generic 64-bit idle powersave support	2010-07-14 14:13:18 +10:00
idle_e500.S
idle_power4.S
init_task.c	Use new __init_task_data macro in arch init_task.c files.	2009-09-21 06:27:08 +02:00
io.c	powerpc: tiny memcpy_(to|from)io optimisation	2009-11-04 16:43:12 -07:00
iomap.c
iommu.c	powerpc: Remove unused 'protect4gb' boot parameter	2010-05-21 17:31:13 +10:00
irq.c	powerpc/4xx: Index interrupt stacks by physical cpu	2010-08-23 07:37:53 -04:00
isa-bridge.c
kgdb.c	kgdb,powerpc: Replace hardcoded offset by BREAK_INSTR_SIZE	2010-08-05 09:22:22 -05:00
kprobes.c	powerpc/kprobes: Remove resume_execution() in kprobes	2010-06-02 17:50:37 +10:00
l2cr_6xx.S
legacy_serial.c	of/address: Clean up function declarations	2010-08-01 01:42:42 -06:00
lparcfg.c	powerpc/pseries: Export data from new hcall H_EM_GET_PARMS	2010-04-07 18:00:29 +10:00
machine_kexec.c	Merge commit 'gcl/next' into next	2010-08-04 10:26:03 +10:00
machine_kexec_32.c
machine_kexec_64.c	powerpc/kexec: Fix orphaned offline CPUs across kexec	2010-07-31 15:05:22 +10:00
Makefile	Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6	2010-08-05 15:57:35 -07:00
misc.S	perf: Drop the skip argument from perf_arch_fetch_regs_caller	2010-06-08 23:31:27 +02:00
misc_32.S	powerpc/kexec: Adds correct calling convention for kexec purgatory	2010-08-31 11:35:12 +10:00
misc_64.S	powerpc: Unconditionally enabled irq stacks	2010-06-15 15:02:37 +10:00
module.c	module: cleanup FIXME comments about trimming exception table entries.	2009-06-12 21:47:05 +09:30
module_32.c	powerpc/ppc32: ftrace, dynamic ftrace to handle modules	2008-11-20 10:52:53 -08:00
module_64.c	powerpc: Unify opcode definitions and support	2009-02-23 10:48:56 +11:00
mpc7450-pmu.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
msi.c	powerpc/PCI: include pci.h in powerpc MSI implementation	2009-03-25 08:54:29 -07:00
nvram_64.c	arch/powerpc: Fix continuation line formats	2010-02-09 13:55:05 +11:00
of_platform.c	of: remove of_default_bus_ids	2010-07-24 09:58:22 -06:00
paca.c	Merge commit 'gcl/next' into next	2010-08-04 10:26:03 +10:00
pci-common.c	of/address: Clean up function declarations	2010-08-01 01:42:42 -06:00
pci_32.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
pci_64.c	of: add 'of_' prefix to machine_is_compatible()	2010-02-09 08:33:00 -07:00
pci_dn.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
pci_of_scan.c	powerpc/pci: Fix checking for child bridges in PCI code.	2010-08-24 15:28:27 +10:00
perf_callchain.c	perf: Fix inconsistency between IP and callchain sampling	2010-01-28 14:31:20 +01:00
perf_event.c	Merge branch 'linus' into perf/core	2010-07-21 21:43:06 +02:00
perf_event_fsl_emb.c	perf, powerpc: fsl_emb: Restore setting perf_sample_data.period	2010-08-03 10:56:45 +10:00
pmc.c	powerpc: Convert pmc_owner_lock to raw_spinlock	2010-02-19 14:52:33 +11:00
power4-pmu.c	perf: Do the big rename: Performance Counters -> Performance Events	2009-09-21 14:28:04 +02:00
power5+-pmu.c	powerpc: perf_event: Enable SDAR in continous sample mode	2009-10-28 16:13:02 +11:00
power5-pmu.c	powerpc: perf_event: Enable SDAR in continous sample mode	2009-10-28 16:13:02 +11:00
power6-pmu.c	powerpc: perf_event: Enable SDAR in continous sample mode	2009-10-28 16:13:02 +11:00
power7-pmu.c	powerpc: perf_event: Enable SDAR in continous sample mode	2009-10-28 16:13:02 +11:00
ppc32.h
ppc970-pmu.c	powerpc: perf_event: Enable SDAR in continous sample mode	2009-10-28 16:13:02 +11:00
ppc_ksyms.c	KVM: PPC: elide struct thread_struct instances from stack	2010-08-01 10:39:24 +03:00
ppc_save_regs.S	powerpc: Prepare xmon_save_regs for use with kdump	2008-12-23 15:13:28 +11:00
proc_powerpc.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
process.c	powerpc: Inline ppc64_runlatch_off	2010-08-24 15:26:30 +10:00
prom.c	powerpc: Fix erroneous lmb->memblock conversions	2010-07-23 12:56:57 +10:00
prom_init.c	powerpc: Print decimal values in prom_init.c	2010-07-31 15:05:20 +10:00
prom_init_check.sh	powerpc: Fix compile errors in prom_init_check for gcc 4.5	2010-07-08 18:11:39 +10:00
prom_parse.c	of/address: Merge all of the bus translation code	2010-07-05 16:14:26 -06:00
ptrace.c	powerpc, hw_breakpoints: Implement hw_breakpoints for 64-bit server processors	2010-06-22 19:40:50 +10:00
ptrace32.c	headers: smp_lock.h redux	2009-07-12 12:22:34 -07:00
reloc_64.S
rtas-proc.c	powerpc: Move /proc/ppc64 to /proc/powerpc update	2010-01-15 13:26:17 +11:00
rtas-rtc.c
rtas.c	Merge commit 'gcl/next' into next	2010-08-04 10:26:03 +10:00
rtas_flash.c	powerpc: rtas_flash needs to use rtas_data_buf	2010-06-15 15:02:37 +10:00
rtas_pci.c	powerpc/pci: Clean up direct access to sysdata by RTAS	2009-05-21 15:44:23 +10:00
rtasd.c	powerpc/rtasd: Don't start event scan if scan rate is zero	2010-05-21 17:29:39 +10:00
setup-common.c	powerpc: fix i8042 module build error	2010-08-06 20:49:20 -06:00
setup.h
setup_32.c	powerpc/4xx: Index interrupt stacks by physical cpu	2010-08-23 07:37:53 -04:00
setup_64.c	powerpc: Correct smt_enabled=X boot option for > 2 threads per core	2010-08-24 15:26:30 +10:00
signal.c	powerpc, hw_breakpoint: Enable hw-breakpoints while handling intervening signals	2010-06-22 19:40:50 +10:00
signal.h	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
signal_32.c	powerpc/booke: Add support for advanced debug registers	2010-02-17 14:03:17 +11:00
signal_64.c	powerpc: Sanitize stack pointer in signal handling code	2009-03-27 16:58:24 +11:00
smp-tbsync.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
smp.c	powerpc: Silence __cpu_up() under normal operation	2010-08-24 15:26:29 +10:00
softemu8xx.c	include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h	2010-03-30 22:02:32 +09:00
stacktrace.c
suspend.c	update email address	2010-07-19 10:56:54 +02:00
swsusp.c	powerpc/mm: Split mmu_context handling	2008-12-21 14:21:15 +11:00
swsusp_32.S	powerpc/swsusp_32: Fix TLB invalidation	2010-01-15 13:20:07 +11:00
swsusp_64.c
swsusp_asm64.S
swsusp_booke.S	powerpc/fsl-booke: Add hibernation support for FSL BookE processors	2010-05-21 07:41:53 -05:00
sys_ppc32.c	powerpc: Wire up fanotify_init, fanotify_mark, prlimit64 syscalls	2010-08-24 15:28:28 +10:00
syscalls.c	Add generic sys_olduname()	2010-03-12 15:52:32 -08:00
sysfs.c	powerpc: Use smt_snooze_delay=-1 to always busy loop	2010-05-21 17:31:12 +10:00
systbl.S
systbl_chk.c
systbl_chk.sh
tau_6xx.c	tree-wide: fix assorted typos all over the place	2009-12-04 15:39:55 +01:00
time.c	powerpc/perf_event: Reduce latency of calling perf_event_do_pending	2010-08-31 11:35:13 +10:00
traps.c	powerpc/book3e: Move doorbell_exception from traps.c to dbell.c	2010-07-09 15:25:18 +10:00
udbg.c	powerpc: gamecube/wii: early debugging using usbgecko	2009-12-12 22:24:31 -07:00
udbg_16550.c	trivial: fix typo "for for" in multiple files	2009-09-21 15:14:54 +02:00
vdso.c	lmb: rename to memblock	2010-07-14 17:14:00 +10:00
vecemu.c
vector.S	powerpc: Fix usage of 64-bit instruction in 32-bit altivec code	2009-12-09 18:10:12 +11:00
vio.c	powerpc: Fix bogus it_blocksize in VIO iommu code	2010-08-24 15:26:31 +10:00
vmlinux.lds.S	Rename .data.read_mostly to .data..read_mostly.	2010-03-03 11:26:00 +01:00