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| author | Christian König <christian.koenig@amd.com> | 2019-11-29 11:33:54 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-09 17:02:07 -0500 |
| commit | e095fc17bbd216ccac7fe06132067ae6e91f01c3 (patch) | |
| tree | dc3982890af6a159e6b2316ad1b44bb831dd840d /drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | |
| parent | 6ceeb144b1d6952a36afa6c29718beac575f2a3f (diff) | |
| download | linux-e095fc17bbd216ccac7fe06132067ae6e91f01c3.tar.bz2 | |
drm/amdgpu: explicitely sync to VM updates v2
Allows us to reduce the overhead while syncing to fences a bit.
v2: also drop adev parameter from the functions
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-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_sync.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 38 |
1 files changed, 28 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c index 95e5e93edd18..f1e5fbef54d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c @@ -129,7 +129,8 @@ static void amdgpu_sync_keep_later(struct dma_fence **keep, * Tries to add the fence to an existing hash entry. Returns true when an entry * was found, false otherwise. */ -static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f, bool explicit) +static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f, + bool explicit) { struct amdgpu_sync_entry *e; @@ -151,19 +152,18 @@ static bool amdgpu_sync_add_later(struct amdgpu_sync *sync, struct dma_fence *f, * amdgpu_sync_fence - remember to sync to this fence * * @sync: sync object to add fence to - * @fence: fence to sync to + * @f: fence to sync to + * @explicit: if this is an explicit dependency * + * Add the fence to the sync object. */ -int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync, - struct dma_fence *f, bool explicit) +int amdgpu_sync_fence(struct amdgpu_sync *sync, struct dma_fence *f, + bool explicit) { struct amdgpu_sync_entry *e; if (!f) return 0; - if (amdgpu_sync_same_dev(adev, f) && - amdgpu_sync_get_owner(f) == AMDGPU_FENCE_OWNER_VM) - amdgpu_sync_keep_later(&sync->last_vm_update, f); if (amdgpu_sync_add_later(sync, f, explicit)) return 0; @@ -180,6 +180,24 @@ int amdgpu_sync_fence(struct amdgpu_device *adev, struct amdgpu_sync *sync, } /** + * amdgpu_sync_vm_fence - remember to sync to this VM fence + * + * @adev: amdgpu device + * @sync: sync object to add fence to + * @fence: the VM fence to add + * + * Add the fence to the sync object and remember it as VM update. + */ +int amdgpu_sync_vm_fence(struct amdgpu_sync *sync, struct dma_fence *fence) +{ + if (!fence) + return 0; + + amdgpu_sync_keep_later(&sync->last_vm_update, fence); + return amdgpu_sync_fence(sync, fence, false); +} + +/** * amdgpu_sync_resv - sync to a reservation object * * @sync: sync object to add fences from reservation object to @@ -204,7 +222,7 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, /* always sync to the exclusive fence */ f = dma_resv_get_excl(resv); - r = amdgpu_sync_fence(adev, sync, f, false); + r = amdgpu_sync_fence(sync, f, false); flist = dma_resv_get_list(resv); if (!flist || r) @@ -239,7 +257,7 @@ int amdgpu_sync_resv(struct amdgpu_device *adev, continue; } - r = amdgpu_sync_fence(adev, sync, f, false); + r = amdgpu_sync_fence(sync, f, false); if (r) break; } @@ -340,7 +358,7 @@ int amdgpu_sync_clone(struct amdgpu_sync *source, struct amdgpu_sync *clone) hash_for_each_safe(source->fences, i, tmp, e, node) { f = e->fence; if (!dma_fence_is_signaled(f)) { - r = amdgpu_sync_fence(NULL, clone, f, e->explicit); + r = amdgpu_sync_fence(clone, f, e->explicit); if (r) return r; } else { |