diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.c | 59 | ||||
| -rw-r--r-- | arch/powerpc/platforms/pseries/xics.h | 3 |
2 files changed, 29 insertions, 33 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c index 66e7d68ffeb1..8f8dd9c3ca6b 100644 --- a/arch/powerpc/platforms/pseries/xics.c +++ b/arch/powerpc/platforms/pseries/xics.c @@ -87,19 +87,25 @@ static int ibm_int_off; /* Direct HW low level accessors */ -static inline unsigned int direct_xirr_info_get(int n_cpu) +static inline unsigned int direct_xirr_info_get(void) { - return in_be32(&xics_per_cpu[n_cpu]->xirr.word); + int cpu = smp_processor_id(); + + return in_be32(&xics_per_cpu[cpu]->xirr.word); } -static inline void direct_xirr_info_set(int n_cpu, int value) +static inline void direct_xirr_info_set(int value) { - out_be32(&xics_per_cpu[n_cpu]->xirr.word, value); + int cpu = smp_processor_id(); + + out_be32(&xics_per_cpu[cpu]->xirr.word, value); } -static inline void direct_cppr_info(int n_cpu, u8 value) +static inline void direct_cppr_info(u8 value) { - out_8(&xics_per_cpu[n_cpu]->xirr.bytes[0], value); + int cpu = smp_processor_id(); + + out_8(&xics_per_cpu[cpu]->xirr.bytes[0], value); } static inline void direct_qirr_info(int n_cpu, u8 value) @@ -111,7 +117,7 @@ static inline void direct_qirr_info(int n_cpu, u8 value) /* LPAR low level accessors */ -static inline unsigned int lpar_xirr_info_get(int n_cpu) +static inline unsigned int lpar_xirr_info_get(void) { unsigned long lpar_rc; unsigned long return_value; @@ -122,7 +128,7 @@ static inline unsigned int lpar_xirr_info_get(int n_cpu) return (unsigned int)return_value; } -static inline void lpar_xirr_info_set(int n_cpu, int value) +static inline void lpar_xirr_info_set(int value) { unsigned long lpar_rc; unsigned long val64 = value & 0xffffffff; @@ -133,7 +139,7 @@ static inline void lpar_xirr_info_set(int n_cpu, int value) val64); } -static inline void lpar_cppr_info(int n_cpu, u8 value) +static inline void lpar_cppr_info(u8 value) { unsigned long lpar_rc; @@ -275,21 +281,19 @@ static unsigned int xics_startup(unsigned int virq) static void xics_eoi_direct(unsigned int virq) { - int cpu = smp_processor_id(); unsigned int irq = (unsigned int)irq_map[virq].hwirq; iosync(); - direct_xirr_info_set(cpu, (0xff << 24) | irq); + direct_xirr_info_set((0xff << 24) | irq); } static void xics_eoi_lpar(unsigned int virq) { - int cpu = smp_processor_id(); unsigned int irq = (unsigned int)irq_map[virq].hwirq; iosync(); - lpar_xirr_info_set(cpu, (0xff << 24) | irq); + lpar_xirr_info_set((0xff << 24) | irq); } static inline unsigned int xics_remap_irq(unsigned int vec) @@ -312,16 +316,12 @@ static inline unsigned int xics_remap_irq(unsigned int vec) static unsigned int xics_get_irq_direct(void) { - unsigned int cpu = smp_processor_id(); - - return xics_remap_irq(direct_xirr_info_get(cpu)); + return xics_remap_irq(direct_xirr_info_get()); } static unsigned int xics_get_irq_lpar(void) { - unsigned int cpu = smp_processor_id(); - - return xics_remap_irq(lpar_xirr_info_get(cpu)); + return xics_remap_irq(lpar_xirr_info_get()); } #ifdef CONFIG_SMP @@ -387,12 +387,12 @@ void xics_cause_IPI(int cpu) #endif /* CONFIG_SMP */ -static void xics_set_cpu_priority(int cpu, unsigned char cppr) +static void xics_set_cpu_priority(unsigned char cppr) { if (firmware_has_feature(FW_FEATURE_LPAR)) - lpar_cppr_info(cpu, cppr); + lpar_cppr_info(cppr); else - direct_cppr_info(cpu, cppr); + direct_cppr_info(cppr); iosync(); } @@ -440,9 +440,7 @@ static void xics_set_affinity(unsigned int virq, cpumask_t cpumask) void xics_setup_cpu(void) { - int cpu = smp_processor_id(); - - xics_set_cpu_priority(cpu, 0xff); + xics_set_cpu_priority(0xff); /* * Put the calling processor into the GIQ. This is really only @@ -783,7 +781,7 @@ void xics_teardown_cpu(int secondary) unsigned int ipi; struct irq_desc *desc; - xics_set_cpu_priority(cpu, 0); + xics_set_cpu_priority(0); /* * Clear IPI @@ -824,10 +822,11 @@ void xics_teardown_cpu(int secondary) void xics_migrate_irqs_away(void) { int status; - unsigned int irq, virq, cpu = smp_processor_id(); + int cpu = smp_processor_id(), hw_cpu = hard_smp_processor_id(); + unsigned int irq, virq; /* Reject any interrupt that was queued to us... */ - xics_set_cpu_priority(cpu, 0); + xics_set_cpu_priority(0); /* remove ourselves from the global interrupt queue */ status = rtas_set_indicator_fast(GLOBAL_INTERRUPT_QUEUE, @@ -835,7 +834,7 @@ void xics_migrate_irqs_away(void) WARN_ON(status < 0); /* Allow IPIs again... */ - xics_set_cpu_priority(cpu, DEFAULT_PRIORITY); + xics_set_cpu_priority(DEFAULT_PRIORITY); for_each_irq(virq) { struct irq_desc *desc; @@ -874,7 +873,7 @@ void xics_migrate_irqs_away(void) * The irq has to be migrated only in the single cpu * case. */ - if (xics_status[0] != get_hard_smp_processor_id(cpu)) + if (xics_status[0] != hw_cpu) goto unlock; printk(KERN_WARNING "IRQ %u affinity broken off cpu %u\n", diff --git a/arch/powerpc/platforms/pseries/xics.h b/arch/powerpc/platforms/pseries/xics.h index db0ec3ba3ae2..9ffd809d29e2 100644 --- a/arch/powerpc/platforms/pseries/xics.h +++ b/arch/powerpc/platforms/pseries/xics.h @@ -21,9 +21,6 @@ extern void xics_cause_IPI(int cpu); extern void xics_request_IPIs(void); extern void xics_migrate_irqs_away(void); -/* first argument is ignored for now*/ -void pSeriesLP_cppr_info(int n_cpu, u8 value); - struct xics_ipi_struct { volatile unsigned long value; } ____cacheline_aligned; |