From 92cb3694dd8da8769f9415790e169b9cf3a16fcb Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 4 Jan 2010 15:26:33 +0000 Subject: 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 Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/xics.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'arch/powerpc') 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); -- cgit v1.2.3