From e8e32426b1271d3387208c3a6eaf7c166bea9975 Mon Sep 17 00:00:00 2001 From: Felix Kuehling Date: Mon, 4 Feb 2019 17:46:35 -0500 Subject: [PATCH] drm/amdgpu: Add helper to wait for BO fences using a sync object MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Creates a temporary sync object to wait for the BO reservation. This generalizes amdgpu_vm_wait_pd. Signed-off-by: Felix Kuehling Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 24 +++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 30 +++------------------- 3 files changed, 28 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index fd9c4beeaaa4..ec9e45004bff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -1284,6 +1284,30 @@ void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence, reservation_object_add_excl_fence(resv, fence); } +/** + * amdgpu_sync_wait_resv - Wait for BO reservation fences + * + * @bo: buffer object + * @owner: fence owner + * @intr: Whether the wait is interruptible + * + * Returns: + * 0 on success, errno otherwise. + */ +int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr) +{ + struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev); + struct amdgpu_sync sync; + int r; + + amdgpu_sync_create(&sync); + amdgpu_sync_resv(adev, &sync, bo->tbo.resv, owner, false); + r = amdgpu_sync_wait(&sync, intr); + amdgpu_sync_free(&sync); + + return r; +} + /** * amdgpu_bo_gpu_offset - return GPU offset of bo * @bo: amdgpu object for which we query the offset diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h index 9291c2f837e9..220a6a7b1bc1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -266,6 +266,7 @@ void amdgpu_bo_move_notify(struct ttm_buffer_object *bo, int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo); void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence, bool shared); +int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr); u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo); int amdgpu_bo_validate(struct amdgpu_bo *bo); int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 75481cf3348f..3f33286c3cd5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1332,31 +1332,6 @@ static void amdgpu_vm_cpu_set_ptes(struct amdgpu_pte_update_params *params, } } - -/** - * amdgpu_vm_wait_pd - Wait for PT BOs to be free. - * - * @adev: amdgpu_device pointer - * @vm: related vm - * @owner: fence owner - * - * Returns: - * 0 on success, errno otherwise. - */ -static int amdgpu_vm_wait_pd(struct amdgpu_device *adev, struct amdgpu_vm *vm, - void *owner) -{ - struct amdgpu_sync sync; - int r; - - amdgpu_sync_create(&sync); - amdgpu_sync_resv(adev, &sync, vm->root.base.bo->tbo.resv, owner, false); - r = amdgpu_sync_wait(&sync, true); - amdgpu_sync_free(&sync); - - return r; -} - /** * amdgpu_vm_update_func - helper to call update function * @@ -1451,7 +1426,8 @@ restart: params.adev = adev; if (vm->use_cpu_for_update) { - r = amdgpu_vm_wait_pd(adev, vm, AMDGPU_FENCE_OWNER_VM); + r = amdgpu_bo_sync_wait(vm->root.base.bo, + AMDGPU_FENCE_OWNER_VM, true); if (unlikely(r)) return r; @@ -1784,7 +1760,7 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev, /* Wait for PT BOs to be idle. PTs share the same resv. object * as the root PD BO */ - r = amdgpu_vm_wait_pd(adev, vm, owner); + r = amdgpu_bo_sync_wait(vm->root.base.bo, owner, true); if (unlikely(r)) return r; -- 2.30.2