From: Tao Zhou Date: Wed, 20 Oct 2021 03:17:25 +0000 (+0800) Subject: drm/amdgpu: skip GPRs init for some CU settings on ALDEBARAN X-Git-Tag: microblaze-v5.18~514^2~8^2~48 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=f7e053435c3d9874df7c12f9865d4c746c1b78f2;p=linux-2.6-microblaze.git 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 Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- 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 00a2b36a24b3..24852a24cc58 100644 --- 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);