diff options
| author | Anton Blanchard <anton@samba.org> | 2013-08-07 02:01:48 +1000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-08-14 15:33:37 +1000 |
| commit | 0654de1cd744a86e19e0a5afb75e3c23571093e6 (patch) | |
| tree | 4852372290b17c0ef00fede12076b6ce71b59be1 /arch/powerpc/kernel/smp.c | |
| parent | 4288e343fb63cd74b35bf68c5d83551f867dba56 (diff) | |
| download | linux-0654de1cd744a86e19e0a5afb75e3c23571093e6.tar.gz | |
powerpc: Little endian SMP IPI demux
Add little endian support for demuxing SMP IPIs
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/smp.c')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index d9d8bb0f44546a..442d8e23f8f408 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -232,6 +232,12 @@ void smp_muxed_ipi_message_pass(int cpu, int msg) smp_ops->cause_ipi(cpu, info->data); } +#ifdef __BIG_ENDIAN__ +#define IPI_MESSAGE(A) (1 << (24 - 8 * (A))) +#else +#define IPI_MESSAGE(A) (1 << (8 * (A))) +#endif + irqreturn_t smp_ipi_demux(void) { struct cpu_messages *info = &__get_cpu_var(ipi_message); @@ -241,19 +247,14 @@ irqreturn_t smp_ipi_demux(void) do { all = xchg(&info->messages, 0); - -#ifdef __BIG_ENDIAN - if (all & (1 << (24 - 8 * PPC_MSG_CALL_FUNCTION))) + if (all & IPI_MESSAGE(PPC_MSG_CALL_FUNCTION)) generic_smp_call_function_interrupt(); - if (all & (1 << (24 - 8 * PPC_MSG_RESCHEDULE))) + if (all & IPI_MESSAGE(PPC_MSG_RESCHEDULE)) scheduler_ipi(); - if (all & (1 << (24 - 8 * PPC_MSG_CALL_FUNC_SINGLE))) + if (all & IPI_MESSAGE(PPC_MSG_CALL_FUNC_SINGLE)) generic_smp_call_function_single_interrupt(); - if (all & (1 << (24 - 8 * PPC_MSG_DEBUGGER_BREAK))) + if (all & IPI_MESSAGE(PPC_MSG_DEBUGGER_BREAK)) debug_ipi_action(0, NULL); -#else -#error Unsupported ENDIAN -#endif } while (info->messages); return IRQ_HANDLED; |