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3 commits

Author SHA1 Message Date
Victor Zhao
72fadb1367 drm/amdgpu: revert context to stop engine before mode2 reset 
For some hang caused by slow tests, engine cannot be stopped which
may cause resume failure after reset. In this case, force halt
engine by reverting context addresses

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-08-16 18:14:31 -04:00
Victor Zhao
bfaced6ee7 drm/amdgpu: save and restore gc hub regs 
Save and restore gfxhub regs as they will be reset during mode 2

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-08-16 18:14:31 -04:00
Victor Zhao
672c0218e3 drm/amdgpu: add mode2 reset for sienna_cichlid 
To meet the requirement for multi container usecase which needs
a quicker reset and not causing VRAM lost, adding the Mode2
reset handler for sienna_cichlid.

v2: move skip mode2 flag part separately

v3: remove the use of asic_reset_res

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Acked-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
 2022-08-16 18:14:31 -04:00