drm/amdgpu: add generic interfaces for PTL requests in virtualization

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Add Performance Throttle Limiter (PTL) support for SR-IOV guest.

Since VF cannot communicate with PSP directly at runtime in SR-IOV
environment, use mailbox data fields to pass PTL parameters to PF,
and parse response status from host mailbox registers.

v2:
- remove redundent checks
- remove unused marco

Signed-off-by: Victor Zhao <Victor.Zhao@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Victor Zhao 2025-12-18 18:41:35 +08:00 • committed by Alex Deucher

parent 0827279ac1

commit cabbba1716

6 changed files with 121 additions and 3 deletions

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20

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

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36

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

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11

drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h

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27

drivers/gpu/drm/amd/amdgpu/amdgv_sriovmsg.h

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28

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

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2

drivers/gpu/drm/amd/amdgpu/mxgpu_nv.h

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