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| author | Evan Quan <evan.quan@amd.com> | 2021-11-04 11:11:26 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-05 14:12:29 -0400 |
| commit | e6ef9b396b6354b33373c62f0f47edf8702f12e5 (patch) | |
| tree | 5a755596c1da8849829676c932412f8e01d9fd9c /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | 7513c9ff44d9dfb035ec35b55f469244304806e6 (diff) | |
drm/amdgpu: correctly toggle gfx on/off around RLC_SPM_* register access
As part of the ib padding process, accessing the RLC_SPM_* register may
trigger gfx hang. Since gfxoff may be already kicked during the whole period.
To address that, we manually toggle gfx on/off around the RLC_SPM_*
register access.
This can resolve the gfx hang issue observed on running Talos with RDP launched
in parallel.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index e0302c23e9a7..5f112efda634 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -5624,6 +5624,8 @@ static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid) { u32 data; + amdgpu_gfx_off_ctrl(adev, false); + if (amdgpu_sriov_is_pp_one_vf(adev)) data = RREG32_NO_KIQ(mmRLC_SPM_VMID); else @@ -5636,6 +5638,8 @@ static void gfx_v8_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid) WREG32_NO_KIQ(mmRLC_SPM_VMID, data); else WREG32(mmRLC_SPM_VMID, data); + + amdgpu_gfx_off_ctrl(adev, true); } static const struct amdgpu_rlc_funcs iceland_rlc_funcs = { |