diff options
| author | Kajol Jain <kjain@linux.ibm.com> | 2023-01-31 21:48:04 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-02-10 14:17:35 +0300 |
| commit | 60bd7936f99fd8cdbeca67180f80ea13d8b97a76 (patch) | |
| tree | 106ec6150dd3a0506d7310359e309b6757b1ef8d /arch/powerpc/perf | |
| parent | 19daf0aef84f33bde9c742ed41b4ded567b8dfbf (diff) | |
| download | linux-60bd7936f99fd8cdbeca67180f80ea13d8b97a76.tar.xz | |
powerpc/hv-24x7: Fix pvr check when setting interface version
Commit ec3eb9d941a9 ("powerpc/perf: Use PVR rather than
oprofile field to determine CPU version") added usage
of pvr value instead of oprofile field to determine the
platform. In hv-24x7 pmu driver code, pvr check uses PVR_POWER8
when assigning the interface version for power8 platform.
But power8 can also have other pvr values like PVR_POWER8E and
PVR_POWER8NVL. Hence the interface version won't be set
properly incase of PVR_POWER8E and PVR_POWER8NVL.
Fix this issue by adding the checks for PVR_POWER8E and
PVR_POWER8NVL as well.
Fixes: ec3eb9d941a9 ("powerpc/perf: Use PVR rather than oprofile field to determine CPU version")
Reported-by: Sachin Sant <sachinp@linux.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230131184804.220756-1-kjain@linux.ibm.com
Diffstat (limited to 'arch/powerpc/perf')
| -rw-r--r-- | arch/powerpc/perf/hv-24x7.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index 33c23225fd54..8ce56837961e 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -1727,7 +1727,8 @@ static int hv_24x7_init(void) } /* POWER8 only supports v1, while POWER9 only supports v2. */ - if (PVR_VER(pvr) == PVR_POWER8) + if (PVR_VER(pvr) == PVR_POWER8 || PVR_VER(pvr) == PVR_POWER8E || + PVR_VER(pvr) == PVR_POWER8NVL) interface_version = 1; else { interface_version = 2; |