drm/amdgpu: read TRUNCATE_COORD_MODE on gfx12

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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: 52cb80c12e ("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>

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Qiang Yu 2026-07-23 17:20:47 +08:00 • committed by Alex Deucher

parent e93659cab1

commit 4261cbc7b0

1 changed files with 6 additions and 0 deletions

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drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

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