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authorAnton Blanchard <anton@samba.org>2010-01-04 16:26:33 +0100
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2010-01-15 03:20:07 +0100
commit92cb3694dd8da8769f9415790e169b9cf3a16fcb (patch)
tree8098b4b455879b4aa61cd9d8c7961e723c37d031 /arch/powerpc
parentpowerpc/swsusp_32: Fix TLB invalidation (diff)
downloadlinux-92cb3694dd8da8769f9415790e169b9cf3a16fcb.tar.xz
linux-92cb3694dd8da8769f9415790e169b9cf3a16fcb.zip
powerpc/pseries: Fix xics interrupt affinity
Commit 57b150cce8e004ddd36330490a68bfb59b7271e9 (irq: only update affinity if ->set_affinity() is sucessfull) broke xics irq affinity. We need to use the cpumask passed in, instead of accessing ->affinity directly. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/platforms/pseries/xics.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index b9b9e11609ec..d80f193cd871 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -163,14 +163,13 @@ static inline void lpar_qirr_info(int n_cpu , u8 value)
/* Interface to generic irq subsystem */
#ifdef CONFIG_SMP
-static int get_irq_server(unsigned int virq, unsigned int strict_check)
+static int get_irq_server(unsigned int virq, cpumask_t cpumask,
+ unsigned int strict_check)
{
int server;
/* For the moment only implement delivery to all cpus or one cpu */
- cpumask_t cpumask;
cpumask_t tmp = CPU_MASK_NONE;
- cpumask_copy(&cpumask, irq_to_desc(virq)->affinity);
if (!distribute_irqs)
return default_server;
@@ -192,7 +191,8 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check)
return default_server;
}
#else
-static int get_irq_server(unsigned int virq, unsigned int strict_check)
+static int get_irq_server(unsigned int virq, cpumask_t cpumask,
+ unsigned int strict_check)
{
return default_server;
}
@@ -211,7 +211,7 @@ static void xics_unmask_irq(unsigned int virq)
if (irq == XICS_IPI || irq == XICS_IRQ_SPURIOUS)
return;
- server = get_irq_server(virq, 0);
+ server = get_irq_server(virq, *(irq_to_desc(virq)->affinity), 0);
call_status = rtas_call(ibm_set_xive, 3, 1, NULL, irq, server,
DEFAULT_PRIORITY);
@@ -405,7 +405,7 @@ static int xics_set_affinity(unsigned int virq, const struct cpumask *cpumask)
* For the moment only implement delivery to all cpus or one cpu.
* Get current irq_server for the given irq
*/
- irq_server = get_irq_server(virq, 1);
+ irq_server = get_irq_server(virq, *cpumask, 1);
if (irq_server == -1) {
char cpulist[128];
cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);