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71efb063f4
linux/arch/arm/kernel
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Will Deacon 71efb063f4 ARM: 6742/1: pmu: avoid setting IRQ affinity on UP systems 
Now that we can execute a CONFIG_SMP kernel on a uniprocessor system,
extra care has to be taken in the PMU IRQ affinity setting code to
ensure that we don't always fail to initialise.

This patch changes the CPU PMU initialisation code so that when we
only have a single IRQ, whose affinity can not be changed at the
controller, we report success (0) rather than -EINVAL.

Reported-by: Avik Sil <avik.sil@linaro.org>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-02-19 11:24:05 +00:00
..
.gitignore [ARM] 5194/1: update .gitignore 2008-08-12 19:54:09 +01:00
armksyms.c ARM: 6314/1: ftrace: allow build without frame pointers on ARM 2010-09-02 15:24:53 +01:00
arthur.c
asm-offsets.c arm: remove machine_desc.io_pg_offst and .phys_io 2010-10-20 00:27:46 -04:00
atags.c
atags.h
bios32.c ARM: 6058/1: Add support for PCI domains 2010-04-22 21:38:11 +01:00
calls.S ARM: 6343/1: wire up fanotify and prlimit64 syscalls on ARM 2010-09-01 10:06:08 +01:00
compat.c ARM: deprecate support for old way to pass kernel parameters 2010-07-07 16:38:36 +02:00
compat.h ARM: deprecate support for old way to pass kernel parameters 2010-07-07 16:38:36 +02:00
crash_dump.c ARM: 6120/1: kdump: implement copy_oldmem_page() 2010-07-09 15:00:53 +01:00
crunch-bits.S [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
crunch.c ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread() 2009-12-18 14:53:41 +00:00
debug.S arm: return both physical and virtual addresses from addruart 2010-10-20 00:27:33 -04:00
dma-isa.c ARM: dma-isa: request cascade channel after registering it 2009-12-24 18:34:08 +00:00
dma.c ARM: dma: add /proc/dma support to arch/arm/kernel/dma.c 2010-04-14 13:13:30 +01:00
early_printk.c ARM: Add an earlyprintk debug console 2009-12-09 10:02:18 +00:00
ecard.c ARM: ecard: irq_data conversion. 2011-01-13 12:26:17 +01:00
ecard.h
elf.c ARM: 5883/1: Revert "disable NX support for OABI-supporting kernels" 2010-01-18 14:12:11 +00:00
entry-armv.S Merge branch 'devel-stable' into devel 2011-01-06 22:33:32 +00:00
entry-common.S Merge branch 'clksrc' into devel 2011-01-05 18:09:03 +00:00
entry-header.S ARM: hw_breakpoint: disable preemption during debug exception handling 2010-12-06 11:55:56 +00:00
etm.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
fiq.c Merge branch 'smp' into misc 2011-01-06 22:32:03 +00:00
ftrace.c ARM: ftrace: graph tracer + dynamic ftrace 2010-11-19 21:43:27 +05:30
head-common.S ARM: fix missing branch in __error_a 2011-01-15 11:19:19 +00:00
head-nommu.S ARM: no need for nommu to jump through the hoops that mmu does 2010-10-08 10:07:27 +01:00
head.S ARM: fixup SMP alternatives in modules 2011-02-10 15:25:18 +00:00
hw_breakpoint.c ARM: 6657/1: hw_breakpoint: fix ptrace breakpoint advertising on unsupported arch 2011-02-11 22:54:48 +00:00
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 [ARM] Convert asm/io.h to linux/io.h 2008-09-06 12:10:45 +01:00
irq.c ARM: core irq_data conversion. 2011-01-13 12:26:17 +01:00
isa.c sysctl: Drop & in front of every proc_handler. 2009-11-18 08:37:40 -08:00
iwmmxt.S ARM: pxa: add iwmmx support for PJ4 2010-12-20 23:07:36 +08:00
kgdb.c kgdb,arm: fix register dump 2010-10-29 13:14:40 -05:00
kprobes-decode.c ARM: 6412/1: kprobes-decode: add support for MOVW instruction 2010-10-04 19:21:37 +01:00
kprobes.c Merge branch 'master' into export-slabh 2010-04-05 11:37:28 +09:00
leds.c ARM: move LED support code out of arch/arm/kernel/time.c 2010-02-15 21:39:12 +00:00
machine_kexec.c ARM: 6522/1: kexec: Add call to non-crashing cores through IPI 2010-12-04 11:02:04 +00:00
Makefile Merge branch 'devel-stable' into devel 2011-01-06 22:33:32 +00:00
module.c ARM: fixup SMP alternatives in modules 2011-02-10 15:25:18 +00:00
perf_event_v6.c ARM: 6521/1: perf: use raw_spinlock_t for pmu_lock 2010-12-04 11:18:08 +00:00
perf_event_v7.c ARM: 6521/1: perf: use raw_spinlock_t for pmu_lock 2010-12-04 11:18:08 +00:00
perf_event_xscale.c ARM: 6521/1: perf: use raw_spinlock_t for pmu_lock 2010-12-04 11:18:08 +00:00
perf_event.c ARM: 6654/1: perf/oprofile: fix off-by-one in stack check 2011-02-10 15:29:03 +00:00
pj4-cp0.c ARM: pxa: add iwmmx support for PJ4 2010-12-20 23:07:36 +08:00
pmu.c ARM: 6742/1: pmu: avoid setting IRQ affinity on UP systems 2011-02-19 11:24:05 +00:00
process.c ARM: 6619/1: nommu: avoid mapping vectors page when !CONFIG_MMU 2011-01-11 17:32:24 +00:00
ptrace.c ARM: ptrace: fix style issue with hw_breakpoint interface 2010-12-06 11:55:57 +00:00
ptrace.h arm: use generic ptrace_resume code 2010-03-12 15:52:38 -08:00
relocate_kernel.S ARM: 6497/1: kexec: Correct data alignment for CONFIG_THUMB2_KERNEL 2010-11-30 13:44:23 +00:00
return_address.c [ARM] 5613/1: implement CALLER_ADDRESSx 2009-07-21 17:21:28 +01:00
sched_clock.c ARM: sched_clock: make minsec argument to clocks_calc_mult_shift() zero 2011-01-11 16:44:02 +00:00
setup.c ARM: 6625/1: use memblock memory regions for "System RAM" I/O resources 2011-01-14 22:14:04 +00:00
signal.c ARM: 6051/1: VFP: preserve the HW context when calling signal handlers 2010-04-14 11:11:30 +01:00
signal.h ARM: Fix signal restart issues with NX and OABI compat 2009-10-25 15:39:37 +00:00
smp_scu.c Check whether the SCU was already initialised 2009-11-05 10:10:36 +00:00
smp_tlb.c ARM: SMP: split out software TLB maintainence broadcasting 2010-12-20 15:09:17 +00:00
smp_twd.c ARM: twd: ensure timer reload is reprogrammed on entry to periodic mode 2011-01-25 21:17:58 +00:00
smp.c Merge branch 'pgt' (early part) into devel 2011-01-06 22:33:19 +00:00
stacktrace.c ARM: fix /proc/$PID/stack on SMP 2011-01-15 09:27:04 +00:00
swp_emulate.c ARM: 6396/1: Add SWP/SWPB emulation for ARMv7 processors 2010-11-04 15:45:24 +00:00
sys_arm.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
sys_oabi-compat.c Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
tcm.c ARM: 6225/1: make TCM allocation static and common for all archs 2010-07-27 10:42:38 +01:00
tcm.h ARM: 5580/2: ARM TCM (Tightly-Coupled Memory) support v3 2009-09-15 22:11:05 +01:00
thumbee.c Fix the teehbr_read function prototype 2008-11-10 14:14:11 +00:00
time.c ARM: sched_clock: allow init_sched_clock() to be called early 2011-01-11 16:23:04 +00:00
traps.c Merge branch 'pgt' (early part) into devel 2011-01-06 22:33:19 +00:00
unwind.c ARM: 6468/1: backtrace: fix calculation of thread stack base 2010-11-07 16:12:37 +00:00
vmlinux.lds.S Merge branch 'misc' into devel 2011-01-06 22:32:52 +00:00
xscale-cp0.c ARM: Convert VFP/Crunch/XscaleCP thread_release() to exit_thread() 2009-12-18 14:53:41 +00:00