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| author | Oak Zeng <Oak.Zeng@amd.com> | 2019-10-07 15:32:23 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-10 19:24:19 -0500 |
| commit | f81b86a043270eb5f7e3a80354bea88d0b43ff6f (patch) | |
| tree | 0b71d205e71ad13ae344dd1e9c85817cfc88a5aa /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | cb1545f7101adfd3c0e1a0efb1310b62a8f22451 (diff) | |
| download | linux-f81b86a043270eb5f7e3a80354bea88d0b43ff6f.tar.bz2 | |
drm/amdgpu: Enable gfx cache probing on HDP write for arcturus
This allows gfx cache to be probed and invalidated (for none-dirty cache lines)
on a HDP write (from either another GPU or CPU). This should work only for the
memory mapped as RW memory type newly added for arcturus, to achieve some cache
coherence b/t multiple memory clients.
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Acked-by: Christian Konig <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index 12bbccdd9d1c..9f2a893871ec 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1194,6 +1194,9 @@ static int gmc_v9_0_hw_init(void *handle) /* TODO for renoir */ mmhub_v1_0_update_power_gating(adev, true); break; + case CHIP_ARCTURUS: + WREG32_FIELD15(HDP, 0, HDP_MMHUB_CNTL, HDP_MMHUB_GCC, 1); + break; default: break; } |