drm/amdgpu: skip GPRs init for some CU settings on ALDEBARAN

Skip GPRs init in specific condition since current GPRs init algorithm only works for some CU settings.

Signed-off-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
index 00a2b36..24852a2 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_4_2.c
@@ -706,6 +706,11 @@ int gfx_v9_4_2_do_edc_gpr_workarounds(struct amdgpu_device *adev)
        if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX))
                return 0;
 
+       /* Workaround for some CU settings, skip GPRs init.
+          Will remove it once GPRs init algorithm works for all CU settings */
+       if (adev->gfx.cu_info.bitmap[1][1] == 0x3f7f)
+               return 0;
+
        gfx_v9_4_2_do_sgprs_init(adev);
 
        gfx_v9_4_2_do_vgprs_init(adev);