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| author | Qiang Yu <Qiang.Yu@amd.com> | 2026-07-23 17:20:47 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-08-06 09:23:55 -0400 |
| commit | 4261cbc7b03f1f56e95aeaf1492b8690fa5a253e (patch) | |
| tree | bb884a3e3a102216d5b28054d081768ab17df49e | |
| parent | e93659cab11c48255dcac58af60203c99815586b (diff) | |
| download | linux-4261cbc7b03f1f56e95aeaf1492b8690fa5a253e.tar.gz linux-4261cbc7b03f1f56e95aeaf1492b8690fa5a253e.zip | |
drm/amdgpu: read TRUNCATE_COORD_MODE on gfx12
TA_CNTL2.TRUNCATE_COORD_MODE selects whether texture coordinate
truncation is D3D9/GL/Vulkan conformant. gfx11 reads it and reports it to
userspace via AMDGPU_IDS_FLAGS_CONFORMANT_TRUNC_COORD, but gfx12 never
read it, so the flag was always reported as 0 and userspace fell back to
the non-conformant path.
Read it in gfx_v12_0_constants_init() like gfx11 does.
Fixes: 52cb80c12e8a ("drm/amdgpu: Add gfx v12_0 ip block support (v6)")
Signed-off-by: Qiang Yu <Qiang.Yu@amd.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c index 45a47078f876..719441dbcc6b 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c @@ -1828,6 +1828,12 @@ static void gfx_v12_0_constants_init(struct amdgpu_device *adev) gfx_v12_0_get_cu_info(adev, &adev->gfx.cu_info); gfx_v12_0_get_tcc_info(adev); adev->gfx.config.pa_sc_tile_steering_override = 0; + + /* Set whether texture coordinate truncation is conformant. */ + tmp = RREG32_SOC15(GC, 0, regTA_CNTL2); + adev->gfx.config.ta_cntl2_truncate_coord_mode = + REG_GET_FIELD(tmp, TA_CNTL2, TRUNCATE_COORD_MODE); + /* Program DB_RING_CONTROL for multiple GFX pipes * Default power up value is 1. * Possible values: |