diff options
| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-02-13 14:32:54 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-02-17 13:48:55 +0300 |
| commit | 78a16d9fc1206e1a484b6ac96348756f3846bfea (patch) | |
| tree | 2c242753a12bc3497a62892dd2e4fcde51a547eb /arch/powerpc/perf/power9-pmu.c | |
| parent | 8d911904f3ce412b20874a9c95f82009dcbb007c (diff) | |
| download | linux-78a16d9fc1206e1a484b6ac96348756f3846bfea.tar.xz | |
powerpc/perf: Avoid FAB_*_MATCH checks for power9
Since power9 does not support FAB_*_MATCH bits in MMCR1,
avoid these checks for power9. For this, patch factor out
code in isa207_get_constraint() to retain these checks
only for power8.
Patch also updates the comment in power9-pmu raw event
encode layout to remove FAB_*_MATCH.
Finally for power9, patch adds additional check for
threshold events when adding the thresh mask and value in
isa207_get_constraint().
fixes: 7ffd948fae4c ('powerpc/perf: factor out power8 pmu functions')
fixes: 18201b204286 ('powerpc/perf: power9 raw event format encoding')
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/perf/power9-pmu.c')
| -rw-r--r-- | arch/powerpc/perf/power9-pmu.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c index 5fe9cb1dc3b6..7f6582708e06 100644 --- a/arch/powerpc/perf/power9-pmu.c +++ b/arch/powerpc/perf/power9-pmu.c @@ -22,7 +22,7 @@ * | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | - - - - | * | | [ ] [ ] [ thresh_cmp ] [ thresh_ctl ] * | | | | | - * | | *- IFM (Linux) | thresh start/stop OR FAB match -* + * | | *- IFM (Linux) | thresh start/stop -* * | *- BHRB (Linux) *sm * *- EBB (Linux) * @@ -50,11 +50,9 @@ * MMCR1[31] = pmc4combine[1] * * if pmc == 3 and unit == 0 and pmcxsel[0:6] == 0b0101011 - * # PM_MRK_FAB_RSP_MATCH - * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) + * MMCR1[20:27] = thresh_ctl * else if pmc == 4 and unit == 0xf and pmcxsel[0:6] == 0b0101001 - * # PM_MRK_FAB_RSP_MATCH_CYC - * MMCR1[20:27] = thresh_ctl (FAB_CRESP_MATCH / FAB_TYPE_MATCH) + * MMCR1[20:27] = thresh_ctl * else * MMCRA[48:55] = thresh_ctl (THRESH START/END) * |