diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-11-15 09:42:08 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-03 08:26:30 +0000 |
| commit | ad3b6993b9c5482e8a2ec5aed181538c921fdcbd (patch) | |
| tree | ec14d13777bc9b7d495929d74a83c36687ec4eab /arch/arm/kernel | |
| parent | d92e04713c6323e09a0d0fdfa0d7cbcedb175e49 (diff) | |
ARM: SMP: pass an ipi number to smp_cross_call()
This allows us to use smp_cross_call() to trigger a number of different
software generated interrupts, rather than combining them all on one
SGI. Recover the SGI number via do_IPI.
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/kernel')
| -rw-r--r-- | arch/arm/kernel/entry-armv.S | 2 | ||||
| -rw-r--r-- | arch/arm/kernel/smp.c | 10 |
2 files changed, 3 insertions, 9 deletions
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index c09e3573c5d..955cf5f539e 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -48,7 +48,7 @@ */ ALT_SMP(test_for_ipi r0, r6, r5, lr) ALT_UP_B(9997f) - movne r0, sp + movne r1, sp adrne lr, BSYM(1b) bne do_IPI diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c index 8c195959025..7a236db03fb 100644 --- a/arch/arm/kernel/smp.c +++ b/arch/arm/kernel/smp.c @@ -404,7 +404,7 @@ static void send_ipi_message(const struct cpumask *mask, enum ipi_msg_type msg) /* * Call the platform specific cross-CPU call function. */ - smp_cross_call(mask); + smp_cross_call(mask, 1); local_irq_restore(flags); } @@ -537,14 +537,8 @@ static void ipi_cpu_stop(unsigned int cpu) /* * Main handler for inter-processor interrupts - * - * For ARM, the ipimask now only identifies a single - * category of IPI (Bit 1 IPIs have been replaced by a - * different mechanism): - * - * Bit 0 - Inter-processor function call */ -asmlinkage void __exception do_IPI(struct pt_regs *regs) +asmlinkage void __exception do_IPI(int ipinr, struct pt_regs *regs) { unsigned int cpu = smp_processor_id(); struct ipi_data *ipi = &per_cpu(ipi_data, cpu); |