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authorSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>2014-02-26 01:07:29 +0100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-03-05 05:53:24 +0100
commit402d9a1e02f7215628f13b7c80ff3e98c3a0cadc (patch)
tree5f140acef1455adec52d9f08ab8bdffb8882a67d /arch/powerpc/include/asm/smp.h
parenttick: Fixup more fallout from hrtimer broadcast mode (diff)
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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.h2
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) */