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| author | Christian König <christian.koenig@amd.com> | 2019-04-16 21:19:07 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2019-10-25 12:40:51 +0300 |
| commit | ef38321897cff9466c9dac45d7c1db5f6f19a2cf (patch) | |
| tree | 1db230917255b3baff5c667d1245b5460e405645 /drivers/gpu/drm/ttm | |
| parent | 97588b5b9a6b330dc2e3fbf3dea987e37d30194e (diff) | |
| download | linux-ef38321897cff9466c9dac45d7c1db5f6f19a2cf.tar.xz | |
drm/ttm: use the parent resv for ghost objects v3
This way the TTM is destroyed with the correct dma_resv object
locked and we can even pipeline imported BO evictions.
v2: Limit this to only cases when the parent object uses a separate
reservation object as well. This fixes another OOM problem.
v3: fix init and try_lock on the wrong object
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.freedesktop.org/patch/337499/
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 73a1b0186029..f7b57ca1a95b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -516,9 +516,11 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo, kref_init(&fbo->base.kref); fbo->base.destroy = &ttm_transfered_destroy; fbo->base.acc_size = 0; - fbo->base.base.resv = &fbo->base.base._resv; - dma_resv_init(fbo->base.base.resv); - ret = dma_resv_trylock(fbo->base.base.resv); + if (bo->base.resv == &bo->base._resv) + fbo->base.base.resv = &fbo->base.base._resv; + + dma_resv_init(&fbo->base.base._resv); + ret = dma_resv_trylock(&fbo->base.base._resv); WARN_ON(!ret); *new_obj = &fbo->base; @@ -715,7 +717,7 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo, if (ret) return ret; - dma_resv_add_excl_fence(ghost_obj->base.resv, fence); + dma_resv_add_excl_fence(&ghost_obj->base._resv, fence); /** * If we're not moving to fixed memory, the TTM object @@ -728,7 +730,7 @@ int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo, else bo->ttm = NULL; - ttm_bo_unreserve(ghost_obj); + dma_resv_unlock(&ghost_obj->base._resv); ttm_bo_put(ghost_obj); } @@ -771,7 +773,7 @@ int ttm_bo_pipeline_move(struct ttm_buffer_object *bo, if (ret) return ret; - dma_resv_add_excl_fence(ghost_obj->base.resv, fence); + dma_resv_add_excl_fence(&ghost_obj->base._resv, fence); /** * If we're not moving to fixed memory, the TTM object @@ -784,7 +786,7 @@ int ttm_bo_pipeline_move(struct ttm_buffer_object *bo, else bo->ttm = NULL; - ttm_bo_unreserve(ghost_obj); + dma_resv_unlock(&ghost_obj->base._resv); ttm_bo_put(ghost_obj); } else if (from->flags & TTM_MEMTYPE_FLAG_FIXED) { @@ -840,7 +842,7 @@ int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo) if (ret) return ret; - ret = dma_resv_copy_fences(ghost->base.resv, bo->base.resv); + ret = dma_resv_copy_fences(&ghost->base._resv, bo->base.resv); /* Last resort, wait for the BO to be idle when we are OOM */ if (ret) ttm_bo_wait(bo, false, false); @@ -849,7 +851,7 @@ int ttm_bo_pipeline_gutting(struct ttm_buffer_object *bo) bo->mem.mem_type = TTM_PL_SYSTEM; bo->ttm = NULL; - ttm_bo_unreserve(ghost); + dma_resv_unlock(&ghost->base._resv); ttm_bo_put(ghost); return 0; |