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authorAnton Blanchard <anton@samba.org>2013-08-06 18:01:26 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-08-14 03:50:26 +0200
commitf13c13a005127b5dc5daaca190277a062d946e63 (patch)
tree0e1085a2eb655f8992590cbce39de0c0f87a5a64 /arch/powerpc/platforms
parentpowerpc/pci: Don't use bitfield for force_32bit_msi (diff)
downloadlinux-f13c13a005127b5dc5daaca190277a062d946e63.tar.xz
linux-f13c13a005127b5dc5daaca190277a062d946e63.zip
powerpc: Stop using non-architected shared_proc field in lppaca
Although the shared_proc field in the lppaca works today, it is not architected. A shared processor partition will always have a non zero yield_count so use that instead. Create a wrapper so users don't have to know about the details. In order for older kernels to continue to work on KVM we need to set the shared_proc bit. While here, remove the ugly bitfield. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/platforms')
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-cpu.c4
-rw-r--r--arch/powerpc/platforms/pseries/processor_idle.c2
2 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index 217ca5c75b20..1e490cf63a0d 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -123,7 +123,7 @@ static void pseries_mach_cpu_die(void)
cede_latency_hint = 2;
get_lppaca()->idle = 1;
- if (!get_lppaca()->shared_proc)
+ if (!lppaca_shared_proc(get_lppaca()))
get_lppaca()->donate_dedicated_cpu = 1;
while (get_preferred_offline_state(cpu) == CPU_STATE_INACTIVE) {
@@ -137,7 +137,7 @@ static void pseries_mach_cpu_die(void)
local_irq_disable();
- if (!get_lppaca()->shared_proc)
+ if (!lppaca_shared_proc(get_lppaca()))
get_lppaca()->donate_dedicated_cpu = 0;
get_lppaca()->idle = 0;
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c
index 4644efa06941..92db881be27e 100644
--- a/arch/powerpc/platforms/pseries/processor_idle.c
+++ b/arch/powerpc/platforms/pseries/processor_idle.c
@@ -308,7 +308,7 @@ static int pseries_idle_probe(void)
return -EPERM;
}
- if (get_lppaca()->shared_proc)
+ if (lppaca_shared_proc(get_lppaca()))
cpuidle_state_table = shared_states;
else
cpuidle_state_table = dedicated_states;