diff options
| author | Tony Lu <zlu@tilera.com> | 2013-08-09 19:08:57 (GMT) |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2013-08-30 15:55:53 (GMT) |
| commit | 3fa17c395bb0c358745fbe0c8aa039d6cdac1735 (patch) | |
| tree | c12f999476581bf31929c4d6a7697efe7062d904 /arch/tile/kernel/smp.c | |
| parent | a61fd5e3662d576998d72f80376f23b6ef083d6e (diff) | |
| download | linux-fsl-qoriq-3fa17c395bb0c358745fbe0c8aa039d6cdac1735.tar.xz | |
tile: support kprobes on tilegx
This change includes support for Kprobes, Jprobes and Return Probes.
Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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 6cc520d..0ae1c59 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(); + } } |