drm/amd/amdgpu: SRIOV full reset issue with VCN

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- 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 <bokun.zhang@amd.com>
Reviewed-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

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Bokun Zhang 2023-11-29 19:11:22 -05:00 • committed by Alex Deucher

parent c035819862

commit e17768691d

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drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c

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