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authorLinus Torvalds <torvalds@g5.osdl.org>2006-01-09 10:03:44 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-09 10:03:44 -0800
commit6150c32589d1976ca8a5c987df951088c05a7542 (patch)
tree94073696576323ff966e365d8c47b8ecd8372f97 /arch/powerpc/kernel/pmc.c
parent44637a12f80b80157d9c1bc5b7d6ef09c9e05713 (diff)
parentbe42d5fa3772241b8ecebd443f1fb36247959c54 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge
Diffstat (limited to 'arch/powerpc/kernel/pmc.c')
-rw-r--r--arch/powerpc/kernel/pmc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index 2d333cc8408..e6fb194fe53 100644
--- a/arch/powerpc/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -43,8 +43,13 @@ static void dummy_perf(struct pt_regs *regs)
mtspr(SPRN_MMCR0, mmcr0);
}
#else
+/* Ensure exceptions are disabled */
static void dummy_perf(struct pt_regs *regs)
{
+ unsigned int mmcr0 = mfspr(SPRN_MMCR0);
+
+ mmcr0 &= ~(MMCR0_PMXE);
+ mtspr(SPRN_MMCR0, mmcr0);
}
#endif