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authorNishanth Aravamudan <nacc@linux.vnet.ibm.com>2013-05-28 10:39:50 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-06-01 08:29:25 +1000
commit2ac6f427ad837a69561160b282eff80d9f0c2466 (patch)
tree62200ceeffc27b770e9cd9bf384d9c3d95ca3cb5
parente242114afff0a41550e174cd787cdbafd34625de (diff)
downloadlinux-2ac6f427ad837a69561160b282eff80d9f0c2466.tar.gz
powerpc/cputable: Fix oprofile_cpu_type on power8
Maynard informed me that neither the oprofile kernel module nor oprofile userspace has been updated to support that "legacy" oprofile module interface for power8, which is indicated by "ppc64/power8." This results in no samples. The solution is to default to the "timer" type, instead. The raw entry also should be updated, as "ppc64/ibm-compat-v1" indicates to oprofile userspace to use "compatibility events" which are obsolete in ISA 2.07. Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/kernel/cputable.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index c60bbec25c1..b8808bcb9e4 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -453,7 +453,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.icache_bsize = 128,
.dcache_bsize = 128,
.oprofile_type = PPC_OPROFILE_POWER4,
- .oprofile_cpu_type = "ppc64/ibm-compat-v1",
+ .oprofile_cpu_type = 0,
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,
.platform = "power8",
@@ -506,7 +506,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
.dcache_bsize = 128,
.num_pmcs = 6,
.pmc_type = PPC_PMC_IBM,
- .oprofile_cpu_type = "ppc64/power8",
+ .oprofile_cpu_type = 0,
.oprofile_type = PPC_OPROFILE_POWER4,
.cpu_setup = __setup_cpu_power8,
.cpu_restore = __restore_cpu_power8,