From df0566a641f959108c152be748a0a58794280e0e Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Thu, 13 Jun 2019 11:44:16 +0300 Subject: drm/i915: move modesetting core code under display/ MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Now that we have a new subdirectory for display code, continue by moving modesetting core code. display/intel_frontbuffer.h sticks out like a sore thumb, otherwise this is, again, a surprisingly clean operation. v2: - don't move intel_sideband.[ch] (Ville) - use tabs for Makefile file lists and sort them Cc: Chris Wilson Cc: Joonas Lahtinen Cc: Rodrigo Vivi Cc: Ville Syrjälä Reviewed-by: Chris Wilson Acked-by: Rodrigo Vivi Acked-by: Maarten Lankhorst Acked-by: Ville Syrjälä Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/20190613084416.6794-3-jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_frontbuffer.h | 98 ++++++++++++++++++++++++ 1 file changed, 98 insertions(+) create mode 100644 drivers/gpu/drm/i915/display/intel_frontbuffer.h (limited to 'drivers/gpu/drm/i915/display/intel_frontbuffer.h') diff --git a/drivers/gpu/drm/i915/display/intel_frontbuffer.h b/drivers/gpu/drm/i915/display/intel_frontbuffer.h new file mode 100644 index 000000000000..5727320c8084 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_frontbuffer.h @@ -0,0 +1,98 @@ +/* + * Copyright (c) 2014-2016 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 __INTEL_FRONTBUFFER_H__ +#define __INTEL_FRONTBUFFER_H__ + +#include "gem/i915_gem_object.h" + +struct drm_i915_private; +struct drm_i915_gem_object; + +enum fb_op_origin { + ORIGIN_GTT, + ORIGIN_CPU, + ORIGIN_CS, + ORIGIN_FLIP, + ORIGIN_DIRTYFB, +}; + +void intel_frontbuffer_flip_prepare(struct drm_i915_private *dev_priv, + unsigned frontbuffer_bits); +void intel_frontbuffer_flip_complete(struct drm_i915_private *dev_priv, + unsigned frontbuffer_bits); +void intel_frontbuffer_flip(struct drm_i915_private *dev_priv, + unsigned frontbuffer_bits); + +void __intel_fb_obj_invalidate(struct drm_i915_gem_object *obj, + enum fb_op_origin origin, + unsigned int frontbuffer_bits); +void __intel_fb_obj_flush(struct drm_i915_gem_object *obj, + enum fb_op_origin origin, + unsigned int frontbuffer_bits); + +/** + * intel_fb_obj_invalidate - invalidate frontbuffer object + * @obj: GEM object to invalidate + * @origin: which operation caused the invalidation + * + * This function gets called every time rendering on the given object starts and + * frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must + * be invalidated. For ORIGIN_CS any subsequent invalidation will be delayed + * until the rendering completes or a flip on this frontbuffer plane is + * scheduled. + */ +static inline bool intel_fb_obj_invalidate(struct drm_i915_gem_object *obj, + enum fb_op_origin origin) +{ + unsigned int frontbuffer_bits; + + frontbuffer_bits = atomic_read(&obj->frontbuffer_bits); + if (!frontbuffer_bits) + return false; + + __intel_fb_obj_invalidate(obj, origin, frontbuffer_bits); + return true; +} + +/** + * intel_fb_obj_flush - flush frontbuffer object + * @obj: GEM object to flush + * @origin: which operation caused the flush + * + * This function gets called every time rendering on the given object has + * completed and frontbuffer caching can be started again. + */ +static inline void intel_fb_obj_flush(struct drm_i915_gem_object *obj, + enum fb_op_origin origin) +{ + unsigned int frontbuffer_bits; + + frontbuffer_bits = atomic_read(&obj->frontbuffer_bits); + if (!frontbuffer_bits) + return; + + __intel_fb_obj_flush(obj, origin, frontbuffer_bits); +} + +#endif /* __INTEL_FRONTBUFFER_H__ */ -- cgit v1.2.3