linux/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c, branch v6.17

drm/amdgpu: move reset support type checks into the caller

2025-07-17T16:36:56Z

Rather than checking in the callbacks, check if the reset type is supported in the caller. Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu/vcn: add a helper framework for engine resets

2025-07-16T20:16:58Z

With engine resets we reset all queues on the engine rather than just a single queue. Add a framework to handle this similar to SDMA. Reviewed-by: Sathishkumar S Tested-by: Sathishkumar S Signed-off-by: Alex Deucher

drm/amdgpu/vcn: during dpc recovery will corrupt VCPU buffer

2025-04-07T19:18:31Z

err_event_athub and dpc recovery will corrupt VCPU buffer, so we need to restore fw data and clear buffer in amdgpu_vcn_resume() Signed-off-by: Ce Sun Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu/vcn: adjust workload profile handling

2025-03-19T19:56:09Z

No need to make the workload profile setup dependent on the results of cancelling the delayed work thread. We have all of the necessary checking in place for the workload profile reference counting, so separate the two. As it is now, we can theoretically end up with the call from begin_use happening while the worker thread is executing which would result in the profile not getting set for that submission. It should not affect the reference counting. v2: bail early if the the profile is already active (Lijo) Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu/vcn: fix ref counting for ring based profile handling

2025-03-19T19:54:36Z

We need to make sure the workload profile ref counts are balanced. This isn't currently the case because we can increment the count on submissions, but the decrement may be delayed as work comes in. Track when we enable the workload profile so the references are balanced. v2: switch to a mutex and active flag v3: fix mutex init Fixes: 1443dd3c67f6 ("drm/amd/pm: fix and simplify workload handling") Cc: Yang Wang Cc: Kenneth Feng Reviewed-by: Kenneth Feng Signed-off-by: Alex Deucher

drm/amdgpu/vcn: use dev_info() for firmware information

2025-02-27T20:52:32Z

To properly handle multiple GPUs. Reviewed-by: Boyuan Zhang Signed-off-by: Alex Deucher

drm/amdgpu/vcn: optimize firmware storage

2025-02-27T20:52:32Z

If each instance uses the same fw image, only store one copy in the driver. Acked-by: Boyuan Zhang Signed-off-by: Alex Deucher

drm/amdgpu/vcn: add a generic helper for set_power_gating_state

2025-02-27T20:52:31Z

It's common for all VCN variants. Reviewed-by: Boyuan Zhang Signed-off-by: Alex Deucher

drm/amdgpu/vcn: use per instance callbacks for idle work handler

2025-02-27T20:52:31Z

Use the vcn instance power gating callbacks rather than the IP powergating callback. This limits power gating to only the instance in use rather than all of the instances. Reviewed-by: Boyuan Zhang Signed-off-by: Alex Deucher

drm/amdgpu/vcn: adjust pause_dpg_mode function signature

2025-02-27T20:52:30Z

Change it to take a vcn instance rather than adev to align with the vcn instance changes. TODO: clean up the function internals to use the vinst state directly rather than accessing it indirectly via adev->vcn.inst[]. Reviewed-by: Boyuan Zhang Signed-off-by: Alex Deucher