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| author | Kent Russell <kent.russell@amd.com> | 2019-07-15 08:53:06 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-07-16 13:08:51 -0500 |
| commit | 9417f703afe3bf4e9c87342fb191d113ee83a818 (patch) | |
| tree | 6c389043159c0ccbeecb8146530b0df543d65545 | |
| parent | ca9db7d1e07237db81c81518d52241d33d72298f (diff) | |
| download | linux-9417f703afe3bf4e9c87342fb191d113ee83a818.tar.gz linux-9417f703afe3bf4e9c87342fb191d113ee83a818.tar.bz2 linux-9417f703afe3bf4e9c87342fb191d113ee83a818.zip | |
drm/amdgpu: Fix Vega20 Perf counter for pcie_bw
The perf counter for Vega20 is 108, instead of 104 which it was on all
previous GPUs, so add a check to use the appropriate value.
Signed-off-by: Kent Russell <kent.russell@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/soc15.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index 87152d8ef0df..5b8f5d9fc3c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -717,9 +717,15 @@ static void soc15_get_pcie_usage(struct amdgpu_device *adev, uint64_t *count0, return; /* Set the 2 events that we wish to watch, defined above */ - /* Reg 40 is # received msgs, Reg 104 is # of posted requests sent */ + /* Reg 40 is # received msgs */ perfctr = REG_SET_FIELD(perfctr, PCIE_PERF_CNTL_TXCLK, EVENT0_SEL, 40); - perfctr = REG_SET_FIELD(perfctr, PCIE_PERF_CNTL_TXCLK, EVENT1_SEL, 104); + /* Pre-VG20, Reg 104 is # of posted requests sent. On VG20 it's 108 */ + if (adev->asic_type == CHIP_VEGA20) + perfctr = REG_SET_FIELD(perfctr, PCIE_PERF_CNTL_TXCLK, + EVENT1_SEL, 108); + else + perfctr = REG_SET_FIELD(perfctr, PCIE_PERF_CNTL_TXCLK, + EVENT1_SEL, 104); /* Write to enable desired perf counters */ WREG32_PCIE(smnPCIE_PERF_CNTL_TXCLK, perfctr); |