diff options
Diffstat (limited to 'arch/tile/kernel/smp.c')
| -rw-r--r-- | arch/tile/kernel/smp.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/tile/kernel/smp.c b/arch/tile/kernel/smp.c index 6cc520d71d2b..0ae1c594d883 100644 --- a/arch/tile/kernel/smp.c +++ b/arch/tile/kernel/smp.c @@ -20,6 +20,7 @@ #include <linux/irq.h> #include <linux/module.h> #include <asm/cacheflush.h> +#include <asm/homecache.h> HV_Topology smp_topology __write_once; EXPORT_SYMBOL(smp_topology); @@ -167,9 +168,16 @@ static void ipi_flush_icache_range(void *info) void flush_icache_range(unsigned long start, unsigned long end) { struct ipi_flush flush = { start, end }; - preempt_disable(); - on_each_cpu(ipi_flush_icache_range, &flush, 1); - preempt_enable(); + + /* If invoked with irqs disabled, we can not issue IPIs. */ + if (irqs_disabled()) + flush_remote(0, HV_FLUSH_EVICT_L1I, NULL, 0, 0, 0, + NULL, NULL, 0); + else { + preempt_disable(); + on_each_cpu(ipi_flush_icache_range, &flush, 1); + preempt_enable(); + } } |