diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_timeline.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_timeline.h | 123 |
1 files changed, 0 insertions, 123 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_timeline.h b/drivers/gpu/drm/i915/i915_gem_timeline.h deleted file mode 100644 index 33e01bf6aa36..000000000000 --- a/drivers/gpu/drm/i915/i915_gem_timeline.h +++ /dev/null @@ -1,123 +0,0 @@ -/* - * Copyright © 2016 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - * - */ - -#ifndef I915_GEM_TIMELINE_H -#define I915_GEM_TIMELINE_H - -#include <linux/list.h> - -#include "i915_request.h" -#include "i915_syncmap.h" -#include "i915_utils.h" - -struct i915_gem_timeline; - -struct intel_timeline { - u64 fence_context; - u32 seqno; - - /** - * Count of outstanding requests, from the time they are constructed - * to the moment they are retired. Loosely coupled to hardware. - */ - u32 inflight_seqnos; - - spinlock_t lock; - - /** - * List of breadcrumbs associated with GPU requests currently - * outstanding. - */ - struct list_head requests; - - /* Contains an RCU guarded pointer to the last request. No reference is - * held to the request, users must carefully acquire a reference to - * the request using i915_gem_active_get_request_rcu(), or hold the - * struct_mutex. - */ - struct i915_gem_active last_request; - - /** - * We track the most recent seqno that we wait on in every context so - * that we only have to emit a new await and dependency on a more - * recent sync point. As the contexts may be executed out-of-order, we - * have to track each individually and can not rely on an absolute - * global_seqno. When we know that all tracked fences are completed - * (i.e. when the driver is idle), we know that the syncmap is - * redundant and we can discard it without loss of generality. - */ - struct i915_syncmap *sync; - /** - * Separately to the inter-context seqno map above, we track the last - * barrier (e.g. semaphore wait) to the global engine timelines. Note - * that this tracks global_seqno rather than the context.seqno, and - * so it is subject to the limitations of hw wraparound and that we - * may need to revoke global_seqno (on pre-emption). - */ - u32 global_sync[I915_NUM_ENGINES]; - - struct i915_gem_timeline *common; -}; - -struct i915_gem_timeline { - struct list_head link; - - struct drm_i915_private *i915; - const char *name; - - struct intel_timeline engine[I915_NUM_ENGINES]; -}; - -int i915_gem_timeline_init(struct drm_i915_private *i915, - struct i915_gem_timeline *tl, - const char *name); -int i915_gem_timeline_init__global(struct drm_i915_private *i915); -void i915_gem_timelines_park(struct drm_i915_private *i915); -void i915_gem_timeline_fini(struct i915_gem_timeline *tl); - -static inline int __intel_timeline_sync_set(struct intel_timeline *tl, - u64 context, u32 seqno) -{ - return i915_syncmap_set(&tl->sync, context, seqno); -} - -static inline int intel_timeline_sync_set(struct intel_timeline *tl, - const struct dma_fence *fence) -{ - return __intel_timeline_sync_set(tl, fence->context, fence->seqno); -} - -static inline bool __intel_timeline_sync_is_later(struct intel_timeline *tl, - u64 context, u32 seqno) -{ - return i915_syncmap_is_later(&tl->sync, context, seqno); -} - -static inline bool intel_timeline_sync_is_later(struct intel_timeline *tl, - const struct dma_fence *fence) -{ - return __intel_timeline_sync_is_later(tl, fence->context, fence->seqno); -} - -#endif |
