diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2023-06-15 03:13:12 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2023-06-15 03:13:12 +0000 |
| commit | fa01de8282ff1c6ed144c8563ecaca2dc0e39488 (patch) | |
| tree | 44a591ea332ef9a68e3cc30b05c85f05c02dd523 /sys | |
| parent | 1b1f5762cfc3714e90bb36ffc1854e8d3109f647 (diff) | |
drm/amdgpu: refine get gpu clock counter method
From Tong Liu01
055852074c968e3649cdcac5d112af17fd39bac8 in linux-6.1.y/6.1.30
5591a051b86be170a84943698ab140342602ff7b in mainline linux
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c b/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c index 4581d3ad160..f9cd0c7b1d0 100644 --- a/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c +++ b/sys/dev/pci/drm/amd/amdgpu/gfx_v11_0.c @@ -4641,11 +4641,24 @@ static int gfx_v11_0_post_soft_reset(void *handle) static uint64_t gfx_v11_0_get_gpu_clock_counter(struct amdgpu_device *adev) { uint64_t clock; + uint64_t clock_counter_lo, clock_counter_hi_pre, clock_counter_hi_after; amdgpu_gfx_off_ctrl(adev, false); mutex_lock(&adev->gfx.gpu_clock_mutex); - clock = (uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_LOWER) | - ((uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_UPPER) << 32ULL); + if (amdgpu_sriov_vf(adev)) { + clock_counter_hi_pre = (uint64_t)RREG32_SOC15(GC, 0, regCP_MES_MTIME_HI); + clock_counter_lo = (uint64_t)RREG32_SOC15(GC, 0, regCP_MES_MTIME_LO); + clock_counter_hi_after = (uint64_t)RREG32_SOC15(GC, 0, regCP_MES_MTIME_HI); + if (clock_counter_hi_pre != clock_counter_hi_after) + clock_counter_lo = (uint64_t)RREG32_SOC15(GC, 0, regCP_MES_MTIME_LO); + } else { + clock_counter_hi_pre = (uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_UPPER); + clock_counter_lo = (uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_LOWER); + clock_counter_hi_after = (uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_UPPER); + if (clock_counter_hi_pre != clock_counter_hi_after) + clock_counter_lo = (uint64_t)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_LOWER); + } + clock = clock_counter_lo | (clock_counter_hi_after << 32ULL); mutex_unlock(&adev->gfx.gpu_clock_mutex); amdgpu_gfx_off_ctrl(adev, true); return clock; |