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| author | Milton Miller <miltonm@bga.com> | 2011-05-10 21:29:42 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-19 07:31:05 +0200 |
| commit | 1ece355b6825b7c61d1dc39a5c6cf49dc746e193 (patch) | |
| tree | 8302fa4a63addc8a621d4dcd49a487f6a77ca393 /arch/powerpc/kernel/smp.c | |
| parent | powerpc: Consolidate ipi message mux and demux (diff) | |
| download | linux-1ece355b6825b7c61d1dc39a5c6cf49dc746e193.tar.xz linux-1ece355b6825b7c61d1dc39a5c6cf49dc746e193.zip | |
powerpc: Add kconfig for muxed smp ipi support
Compile the new smp ipi mux and demux code only if a platform
will make use of it. The new config is selected as required.
The new cause_ipi smp op is only available conditionally to point out
configs where the select is required; this makes setting the op an
immediate fail instead of a deferred unresolved symbol at link.
This also creates a new config for power surge powermac upgrade support
that can be disabled in expert mode but is default on.
I also removed the depends / default y on CONFIG_XICS since it is selected
by PSERIES.
Signed-off-by: Milton Miller <miltonm@bga.com>
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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index fa8e8700064b..d76f7d7929be 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -178,6 +178,7 @@ int smp_request_message_ipi(int virq, int msg) return err; } +#ifdef CONFIG_PPC_SMP_MUXED_IPI struct cpu_messages { unsigned long messages; /* current messages bits */ unsigned long data; /* data for cause ipi */ @@ -230,6 +231,7 @@ irqreturn_t smp_ipi_demux(void) } return IRQ_HANDLED; } +#endif /* CONFIG_PPC_SMP_MUXED_IPI */ void smp_send_reschedule(int cpu) { |