alistair23-linux/drivers/gpu/drm/i915/intel_frontbuffer.h
Chris Wilson d59b21ec6f drm/i915: Remove 'retire' parameter from intel_fb_obj_flush
Setting retire=true is identical to using origin=ORIGIN_CS, so make the
same simplification to intel_fb_obj_flush() as already employed for
intel_fb_obj_invalidate().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170222114049.28456-6-chris@chris-wilson.co.uk
2017-02-22 12:12:17 +00:00

89 lines
3.2 KiB
C

/*
* 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__
struct drm_i915_private;
struct drm_i915_gem_object;
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__ */