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| author | Christian König <christian.koenig@amd.com> | 2022-03-15 15:27:45 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-03-25 12:40:51 -0400 |
| commit | 5255e146c99a677d4d55fdb988544bd20c539a0b (patch) | |
| tree | 95af8ea38ee85803e1f77a4c54b97f291a755b14 /drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | |
| parent | e997b82745a5b2419bc5b72735811d7162ac994a (diff) | |
| download | linux-stable-5255e146c99a677d4d55fdb988544bd20c539a0b.tar.gz linux-stable-5255e146c99a677d4d55fdb988544bd20c539a0b.tar.bz2 linux-stable-5255e146c99a677d4d55fdb988544bd20c539a0b.zip | |
drm/amdgpu: rework TLB flushing
Instead of tracking the VM updates through the dependencies just use a
sequence counter for page table updates which indicates the need to
flush the TLB.
This reduces the need to flush the TLB drastically.
v2: squash in NULL check fix (Christian)
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c index 4f1399573107..558f90e11d78 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ids.c @@ -277,7 +277,7 @@ static int amdgpu_vmid_grab_reserved(struct amdgpu_vm *vm, unsigned vmhub = ring->funcs->vmhub; uint64_t fence_context = adev->fence_context + ring->idx; bool needs_flush = vm->use_cpu_for_update; - uint64_t updates = sync->last_vm_update; + uint64_t updates = amdgpu_vm_tlb_seq(vm); int r; *id = vm->reserved_vmid[vmhub]; @@ -338,7 +338,7 @@ static int amdgpu_vmid_grab_used(struct amdgpu_vm *vm, unsigned vmhub = ring->funcs->vmhub; struct amdgpu_vmid_mgr *id_mgr = &adev->vm_manager.id_mgr[vmhub]; uint64_t fence_context = adev->fence_context + ring->idx; - uint64_t updates = sync->last_vm_update; + uint64_t updates = amdgpu_vm_tlb_seq(vm); int r; job->vm_needs_flush = vm->use_cpu_for_update; @@ -426,7 +426,7 @@ int amdgpu_vmid_grab(struct amdgpu_vm *vm, struct amdgpu_ring *ring, if (r) goto error; - id->flushed_updates = sync->last_vm_update; + id->flushed_updates = amdgpu_vm_tlb_seq(vm); job->vm_needs_flush = true; } |