kernel_optimize_test/arch/powerpc/kernel
Benjamin Herrenschmidt 4f917ba3d5 powerpc/ppc64: Use preempt_schedule_irq instead of preempt_schedule
Based on an original patch by Valentine Barshak <vbarshak@ru.mvista.com>

Use preempt_schedule_irq to prevent infinite irq-entry and
eventual stack overflow problems with fast-paced IRQ sources.

This kind of problems has been observed on the PASemi Electra IDE
controller. We have to make sure we are soft-disabled before calling
preempt_schedule_irq and hard disable interrupts after that
to avoid unrecoverable exceptions.

This patch also moves the "clrrdi r9,r1,THREAD_SHIFT" out of
the #ifdef CONFIG_PPC_BOOK3E scope, since r9 is clobbered
and has to be restored in both cases.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-10-27 16:42:43 +11:00
..
vdso32 powerpc: Fix segment mapping in vdso32 2009-10-27 16:42:40 +11:00
vdso64 Use macros for .data.page_aligned section. 2009-09-21 06:27:08 +02:00
.gitignore
align.c
asm-offsets.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
audit.c
btext.c
cacheinfo.c
cacheinfo.h
clock.c
compat_audit.c
cpu_setup_6xx.S
cpu_setup_44x.S
cpu_setup_fsl_booke.S
cpu_setup_pa6t.S
cpu_setup_ppc970.S
cputable.c powerpc/oprofile: Add ppc750 CL as supported by oprofile 2009-10-14 16:58:39 +11:00
crash_dump.c
crash.c
dbell.c
dma-iommu.c powerpc: Change archdata dma_data to a union 2009-09-24 15:31:43 +10:00
dma-swiotlb.c
dma.c powerpc: Rename get_dma_direct_offset get_dma_offset 2009-09-24 15:31:43 +10:00
entry_32.S
entry_64.S powerpc/ppc64: Use preempt_schedule_irq instead of preempt_schedule 2009-10-27 16:42:43 +11:00
exceptions-64e.S powerpc/book3e-64: Remove duplicated #include 2009-09-24 15:31:41 +10:00
exceptions-64s.S
firmware.c
fpu.S
ftrace.c
head_8xx.S
head_32.S
head_40x.S
head_44x.S
head_64.S
head_booke.h
head_fsl_booke.S
ibmebus.c
idle_6xx.S
idle_e500.S
idle_power4.S
idle.c
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
iomap.c
iommu.c
irq.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
isa-bridge.c
kgdb.c powerpc/kgdb: Fix build failure caused by "kgdb.c: unused variable 'acc'" 2009-10-14 16:58:38 +11:00
kprobes.c
l2cr_6xx.S
legacy_serial.c
lparcfg.c
machine_kexec_32.c
machine_kexec_64.c Use new __init_task_data macro in arch init_task.c files. 2009-09-21 06:27:08 +02:00
machine_kexec.c
Makefile perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
misc_32.S
misc_64.S
misc.S
module_32.c
module_64.c
module.c
mpc7450-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
msi.c
nvram_64.c
of_device.c
of_platform.c
paca.c
pci_32.c
pci_64.c powerpc: Fix compile errors found by new ppc64e_defconfig 2009-10-27 16:42:41 +11:00
pci_dn.c
pci_of_scan.c
pci-common.c powerpc/pci: Fix MODPOST warning 2009-10-14 16:58:40 +11:00
perf_callchain.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
perf_event.c powerpc/perf_events: Fix priority of MSR HV vs PR bits 2009-10-27 16:42:38 +11:00
pmc.c
power4-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power5-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power5+-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power6-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
power7-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
ppc32.h
ppc970-pmu.c perf: Do the big rename: Performance Counters -> Performance Events 2009-09-21 14:28:04 +02:00
ppc_ksyms.c
ppc_save_regs.S
proc_ppc64.c
process.c powerpc: Fix compile errors found by new ppc64e_defconfig 2009-10-27 16:42:41 +11:00
prom_init_check.sh
prom_init.c powerpc: Fix ibm,client-architecture-support printout 2009-09-24 15:31:47 +10:00
prom_parse.c
prom.c
ptrace32.c
ptrace.c
reloc_64.S
rtas_flash.c
rtas_pci.c
rtas-proc.c
rtas-rtc.c
rtas.c
setup_32.c
setup_64.c powerpc: Fix compile errors found by new ppc64e_defconfig 2009-10-27 16:42:41 +11:00
setup-common.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus 2009-09-23 18:14:11 -07:00
setup.h
signal_32.c
signal_64.c
signal.c
signal.h
smp-tbsync.c
smp.c cpumask: Use accessors for cpu_*_mask: powerpc 2009-09-24 09:34:48 +09:30
softemu8xx.c
stacktrace.c
suspend.c
swsusp_32.S
swsusp_64.c
swsusp_asm64.S
swsusp.c
sys_ppc32.c headers: utsname.h redux 2009-09-23 18:13:10 -07:00
syscalls.c
sysfs.c
systbl_chk.c
systbl_chk.sh
systbl.S
tau_6xx.c
time.c Merge branch 'timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2009-09-23 09:46:15 -07:00
traps.c
udbg_16550.c trivial: fix typo "for for" in multiple files 2009-09-21 15:14:54 +02:00
udbg.c
vdso.c powerpc: Align vDSO base address 2009-10-27 16:42:40 +11:00
vecemu.c
vector.S
vio.c powerpc: Change archdata dma_data to a union 2009-09-24 15:31:43 +10:00
vmlinux.lds.S powerpc: warning: allocated section `.data_nosave' not in segment 2009-10-14 16:58:39 +11:00