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drm/amdkfd: APIs to stop/start KFD scheduling

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Provide amdgpu_amdkfd_stop_sched() for amdgpu to stop KFD scheduling
compute work on HIQ. amdgpu_amdkfd_start_sched() resumes the scheduling.
When amdgpu_amdkfd_stop_sched is called, KFD will unmap queues from
runlist. If users send ioctls to KFD to create queues, they'll be added
but those queues won't be mapped to runlist (so not scheduled) until
amdgpu_amdkfd_start_sched is called.

v2: fix build (Alex)

Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Amber Lin
2024-07-29 14:22:30 -04:00
committed by Alex Deucher
parent b1f49ff9cb
commit 234eebe161
5 changed files with 137 additions and 1 deletions
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18
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
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@@ -887,3 +887,21 @@ free_ring_funcs:
return r;
}
/* Stop scheduling on KFD */
int amdgpu_amdkfd_stop_sched(struct amdgpu_device *adev, uint32_t node_id)
{
if (!adev->kfd.init_complete)
return 0;
return kgd2kfd_stop_sched(adev->kfd.dev, node_id);
}
/* Start scheduling on KFD */
int amdgpu_amdkfd_start_sched(struct amdgpu_device *adev, uint32_t node_id)
{
if (!adev->kfd.init_complete)
return 0;
return kgd2kfd_start_sched(adev->kfd.dev, node_id);
}