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drm/amdgpu: Check num_gfx_rings for gfx v9_0 rb setup.

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No need to set up rb when no gfx rings.

Signed-off-by: Candice Li <candice.li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Candice Li 2022-08-18 10:47:09 +08:00 committed by Alex Deucher
parent 9dfa4860ef
commit 4bb5fed169
1 changed files with 2 additions and 1 deletions
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drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
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@ -2597,7 +2597,8 @@ static void gfx_v9_0_constants_init(struct amdgpu_device *adev)
gfx_v9_0_tiling_mode_table_init(adev);
gfx_v9_0_setup_rb(adev);
if (adev->gfx.num_gfx_rings)
gfx_v9_0_setup_rb(adev);
gfx_v9_0_get_cu_info(adev, &adev->gfx.cu_info);
adev->gfx.config.db_debug2 = RREG32_SOC15(GC, 0, mmDB_DEBUG2);