From: Yang Wang Date: Wed, 9 Feb 2022 14:15:24 +0000 (+0800) Subject: drm/amdgpu: fix gmc init fail in sriov mode X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=63b5fa9dbb711e245e59cc14eaae0106eb716447;p=linux.git drm/amdgpu: fix gmc init fail in sriov mode "adev->gfx.rlc.rlcg_reg_access_supported = true;" the above varible were set too late during driver initialization. it will cause the driver to fail to write/read register during GMC hw init in sriov mode. move gfx_xxx_init_rlcg_reg_access_ctrl() function to gfx early init stage to avoid this issue. Fixes: 5d447e29670148 ("drm/amdgpu: add helper for rlcg indirect reg access") Signed-off-by: Yang Wang Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index f54e106e2b86f..3d8c5fea572e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -4343,7 +4343,6 @@ static int gfx_v10_0_rlc_init(struct amdgpu_device *adev) if (adev->gfx.rlc.funcs->update_spm_vmid) adev->gfx.rlc.funcs->update_spm_vmid(adev, 0xf); - gfx_v10_0_init_rlcg_reg_access_ctrl(adev); return 0; } @@ -7682,6 +7681,9 @@ static int gfx_v10_0_early_init(void *handle) gfx_v10_0_set_gds_init(adev); gfx_v10_0_set_rlc_funcs(adev); + /* init rlcg reg access ctrl */ + gfx_v10_0_init_rlcg_reg_access_ctrl(adev); + return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index ca7b886c6ce6b..744253be51426 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -1934,9 +1934,6 @@ static int gfx_v9_0_rlc_init(struct amdgpu_device *adev) if (adev->gfx.rlc.funcs->update_spm_vmid) adev->gfx.rlc.funcs->update_spm_vmid(adev, 0xf); - /* init rlcg reg access ctrl */ - gfx_v9_0_init_rlcg_reg_access_ctrl(adev); - return 0; } @@ -4755,6 +4752,9 @@ static int gfx_v9_0_early_init(void *handle) gfx_v9_0_set_gds_init(adev); gfx_v9_0_set_rlc_funcs(adev); + /* init rlcg reg access ctrl */ + gfx_v9_0_init_rlcg_reg_access_ctrl(adev); + return 0; }