diff options
Diffstat (limited to 'arch/parisc/kernel/signal.c')
| -rw-r--r-- | arch/parisc/kernel/signal.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c index befdfe700616..82c24e62ab63 100644 --- a/arch/parisc/kernel/signal.c +++ b/arch/parisc/kernel/signal.c @@ -625,11 +625,14 @@ do_signal(sigset_t *oldset, struct pt_regs *regs, int in_syscall) put_user(0xe0008200, &usp[3]); put_user(0x34140000, &usp[4]); - /* Stack is 64-byte aligned, and we only - * need to flush 1 cache line */ - asm("fdc 0(%%sr3, %0)\n" + /* Stack is 64-byte aligned, and we only need + * to flush 1 cache line. + * Flushing one cacheline is cheap. + * "sync" on bigger (> 4 way) boxes is not. + */ + asm("fdc %%r0(%%sr3, %0)\n" "sync\n" - "fic 0(%%sr3, %0)\n" + "fic %%r0(%%sr3, %0)\n" "sync\n" : : "r"(regs->gr[30])); |