diff options
| author | Milton Miller <miltonm@bga.com> | 2011-05-10 19:29:42 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-05-19 15:31:05 +1000 |
| commit | 1ece355b6825b7c61d1dc39a5c6cf49dc746e193 (patch) | |
| tree | 8302fa4a63addc8a621d4dcd49a487f6a77ca393 /arch/powerpc/platforms/powermac | |
| parent | 23d72bfd8f9f24aa9efafed3586a99f5669c23d7 (diff) | |
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/platforms/powermac')
| -rw-r--r-- | arch/powerpc/platforms/powermac/Kconfig | 11 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/pic.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/platforms/powermac/smp.c | 8 |
3 files changed, 16 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig index 1e1a0873e1dd..1afd10f67858 100644 --- a/arch/powerpc/platforms/powermac/Kconfig +++ b/arch/powerpc/platforms/powermac/Kconfig @@ -18,4 +18,13 @@ config PPC_PMAC64 select PPC_970_NAP default y - +config PPC_PMAC32_PSURGE + bool "Support for powersurge upgrade cards" if EXPERT + depends on SMP && PPC32 && PPC_PMAC + select PPC_SMP_MUXED_IPI + default y + help + The powersurge cpu boards can be used in the generation + of powermacs that have a socket for an upgradeable cpu card, + including the 7500, 8500, 9500, 9600. Support exists for + both dual and quad socket upgrade cards. diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c index 2f34ad04029f..b706cb3ad99c 100644 --- a/arch/powerpc/platforms/powermac/pic.c +++ b/arch/powerpc/platforms/powermac/pic.c @@ -239,7 +239,7 @@ static unsigned int pmac_pic_get_irq(void) unsigned long bits = 0; unsigned long flags; -#ifdef CONFIG_SMP +#ifdef CONFIG_PPC_PMAC32_PSURGE void psurge_smp_message_recv(void); /* IPI's are a hack on the powersurge -- Cort */ @@ -247,7 +247,7 @@ static unsigned int pmac_pic_get_irq(void) psurge_smp_message_recv(); return NO_IRQ_IGNORE; /* ignore, already handled */ } -#endif /* CONFIG_SMP */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ raw_spin_lock_irqsave(&pmac_pic_lock, flags); for (irq = max_real_irqs; (irq -= 32) >= 0; ) { int i = irq >> 5; diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c index a3401071abfb..67b6e1432be2 100644 --- a/arch/powerpc/platforms/powermac/smp.c +++ b/arch/powerpc/platforms/powermac/smp.c @@ -70,7 +70,7 @@ static void (*pmac_tb_freeze)(int freeze); static u64 timebase; static int tb_req; -#ifdef CONFIG_PPC32 +#ifdef CONFIG_PPC_PMAC32_PSURGE /* * Powersurge (old powermac SMP) support. @@ -420,7 +420,7 @@ struct smp_ops_t psurge_smp_ops = { .give_timebase = smp_psurge_give_timebase, .take_timebase = smp_psurge_take_timebase, }; -#endif /* CONFIG_PPC32 - actually powersurge support */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ /* * Core 99 and later support @@ -980,7 +980,7 @@ void __init pmac_setup_smp(void) of_node_put(np); smp_ops = &core99_smp_ops; } -#ifdef CONFIG_PPC32 +#ifdef CONFIG_PPC_PMAC32_PSURGE else { /* We have to set bits in cpu_possible_mask here since the * secondary CPU(s) aren't in the device tree. Various @@ -993,7 +993,7 @@ void __init pmac_setup_smp(void) set_cpu_possible(cpu, true); smp_ops = &psurge_smp_ops; } -#endif /* CONFIG_PPC32 */ +#endif /* CONFIG_PPC_PMAC32_PSURGE */ #ifdef CONFIG_HOTPLUG_CPU ppc_md.cpu_die = pmac_cpu_die; |