diff options
| author | Bokun Zhang <[email protected]> | 2023-11-29 19:11:22 -0500 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2023-12-06 15:22:37 -0500 |
| commit | e17768691dd8d0664413de3123621daa0504054c (patch) | |
| tree | 360668b5fa63534c2f1bdb87bf07d88be5f6131d | |
| parent | c03581986234044f2eeae308b7840e0083981034 (diff) | |
drm/amd/amdgpu: SRIOV full reset issue with VCN
- After a full reset, VF's FB will be cleaned. This
includes the VCN's fw_shared memory.
However, there is no suspend-resume routine for
SRIOV VF. Therefore, the data in the fw_shared
memory will be lost forever and it causes engine
hang later on.
We must repopulate the data in fw_shared during
SRIOV hw_init
Signed-off-by: Bokun Zhang <[email protected]>
Reviewed-by: Emily Deng <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c index 28b7f96b42e5..169ed400ee7b 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c @@ -1280,6 +1280,9 @@ static int vcn_v4_0_start_sriov(struct amdgpu_device *adev) if (adev->vcn.harvest_config & (1 << i)) continue; + // Must re/init fw_shared at beginning + vcn_v4_0_fw_shared_init(adev, i); + table_size = 0; MMSCH_V4_0_INSERT_DIRECT_RD_MOD_WT(SOC15_REG_OFFSET(VCN, i, |