Chris Wilson | 5d723d7 | 2016-08-04 16:32:35 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014-2016 Intel Corporation |
| 3 | * |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 5 | * copy of this software and associated documentation files (the "Software"), |
| 6 | * to deal in the Software without restriction, including without limitation |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the |
| 9 | * Software is furnished to do so, subject to the following conditions: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice (including the next |
| 12 | * paragraph) shall be included in all copies or substantial portions of the |
| 13 | * Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 18 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 20 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 21 | * IN THE SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #ifndef __INTEL_FRONTBUFFER_H__ |
| 25 | #define __INTEL_FRONTBUFFER_H__ |
| 26 | |
| 27 | struct drm_device; |
| 28 | struct drm_i915_private; |
| 29 | struct drm_i915_gem_object; |
| 30 | |
Chris Wilson | 5d723d7 | 2016-08-04 16:32:35 +0100 | [diff] [blame] | 31 | void intel_frontbuffer_flip_prepare(struct drm_device *dev, |
| 32 | unsigned frontbuffer_bits); |
| 33 | void intel_frontbuffer_flip_complete(struct drm_device *dev, |
| 34 | unsigned frontbuffer_bits); |
| 35 | void intel_frontbuffer_flip(struct drm_device *dev, |
| 36 | unsigned frontbuffer_bits); |
Chris Wilson | b5add95 | 2016-08-04 16:32:36 +0100 | [diff] [blame^] | 37 | |
| 38 | void __intel_fb_obj_invalidate(struct drm_i915_gem_object *obj, |
| 39 | enum fb_op_origin origin); |
| 40 | void __intel_fb_obj_flush(struct drm_i915_gem_object *obj, |
| 41 | bool retire, |
| 42 | enum fb_op_origin origin); |
| 43 | |
| 44 | /** |
| 45 | * intel_fb_obj_invalidate - invalidate frontbuffer object |
| 46 | * @obj: GEM object to invalidate |
| 47 | * @origin: which operation caused the invalidation |
| 48 | * |
| 49 | * This function gets called every time rendering on the given object starts and |
| 50 | * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must |
| 51 | * be invalidated. For ORIGIN_CS any subsequent invalidation will be delayed |
| 52 | * until the rendering completes or a flip on this frontbuffer plane is |
| 53 | * scheduled. |
| 54 | */ |
| 55 | static inline void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj, |
| 56 | enum fb_op_origin origin) |
| 57 | { |
| 58 | if (!obj->frontbuffer_bits) |
| 59 | return; |
| 60 | |
| 61 | __intel_fb_obj_invalidate(obj, origin); |
| 62 | } |
| 63 | |
| 64 | /** |
| 65 | * intel_fb_obj_flush - flush frontbuffer object |
| 66 | * @obj: GEM object to flush |
| 67 | * @retire: set when retiring asynchronous rendering |
| 68 | * @origin: which operation caused the flush |
| 69 | * |
| 70 | * This function gets called every time rendering on the given object has |
| 71 | * completed and frontbuffer caching can be started again. If @retire is true |
| 72 | * then any delayed flushes will be unblocked. |
| 73 | */ |
| 74 | static inline void intel_fb_obj_flush(struct drm_i915_gem_object *obj, |
| 75 | bool retire, |
| 76 | enum fb_op_origin origin) |
| 77 | { |
| 78 | if (!obj->frontbuffer_bits) |
| 79 | return; |
| 80 | |
| 81 | __intel_fb_obj_flush(obj, retire, origin); |
| 82 | } |
Chris Wilson | 5d723d7 | 2016-08-04 16:32:35 +0100 | [diff] [blame] | 83 | |
| 84 | #endif /* __INTEL_FRONTBUFFER_H__ */ |