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| author | Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> | 2014-02-26 05:37:29 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2014-03-05 15:53:24 +1100 |
| commit | 402d9a1e02f7215628f13b7c80ff3e98c3a0cadc (patch) | |
| tree | 5f140acef1455adec52d9f08ab8bdffb8882a67d /arch/powerpc/include/asm/smp.h | |
| parent | 849401b66d305f3feb75b6db7459b95ad190552a (diff) | |
| download | blackbird-op-linux-402d9a1e02f7215628f13b7c80ff3e98c3a0cadc.tar.gz blackbird-op-linux-402d9a1e02f7215628f13b7c80ff3e98c3a0cadc.zip | |
powerpc: Free up the slot of PPC_MSG_CALL_FUNC_SINGLE IPI message
The IPI handlers for both PPC_MSG_CALL_FUNC and PPC_MSG_CALL_FUNC_SINGLE map
to a common implementation - generic_smp_call_function_single_interrupt(). So,
we can consolidate them and save one of the IPI message slots, (which are
precious on powerpc, since only 4 of those slots are available).
So, implement the functionality of PPC_MSG_CALL_FUNC_SINGLE using
PPC_MSG_CALL_FUNC itself and release its IPI message slot, so that it can be
used for something else in the future, if desired.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Preeti U. Murthy <preeti@linux.vnet.ibm.com>
Acked-by: Geoff Levand <geoff@infradead.org> [For the PS3 part]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/smp.h')
| -rw-r--r-- | arch/powerpc/include/asm/smp.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 084e0807db98..9f7356bf6482 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -120,7 +120,7 @@ extern int cpu_to_core_id(int cpu); * in /proc/interrupts will be wrong!!! --Troy */ #define PPC_MSG_CALL_FUNCTION 0 #define PPC_MSG_RESCHEDULE 1 -#define PPC_MSG_CALL_FUNC_SINGLE 2 +#define PPC_MSG_UNUSED 2 #define PPC_MSG_DEBUGGER_BREAK 3 /* for irq controllers that have dedicated ipis per message (4) */ |
