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path: root/drivers/gpu/drm/i915/intel_frontbuffer.h
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2017-02-22drm/i915: Remove 'retire' parameter from intel_fb_obj_flushChris Wilson1-6/+2
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
2016-11-18drm/i915: Move frontbuffer CS write tracking from ggtt vma to objectChris Wilson1-2/+3
I tried to avoid having to track the write for every VMA by only tracking writes to the ggtt. However, for the purposes of frontbuffer tracking this is insufficient as we need to invalidate around writes not just to the the ggtt but all aliased ppgtt views of the framebuffer. By moving the critical section to the object and only doing so for framebuffer writes we can reduce the tracking even further by only watching framebuffers and not vma. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161116190704.5293-1-chris@chris-wilson.co.uk Tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2016-08-04drm/i915: Use dev_priv consistently through the intel_frontbuffer interfaceChris Wilson1-4/+3
Rather than a mismash of struct drm_device *dev and struct drm_i915_private *dev_priv being used freely within a function, be consistent and only pass along dev_priv. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-22-git-send-email-chris@chris-wilson.co.uk
2016-08-04drm/i915: Use atomics to manipulate obj->frontbuffer_bitsChris Wilson1-6/+14
The individual bits inside obj->frontbuffer_bits are protected by each plane->mutex, but the whole bitfield may be accessed by multiple KMS operations simultaneously and so the RMW need to be under atomics. However, for updating the single field we do not need to mandate that it be under the struct_mutex, one more step towards its removal as the de facto BKL. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-21-git-send-email-chris@chris-wilson.co.uk
2016-08-04drm/i915: Make fb_tracking.lock a spinlockChris Wilson1-4/+46
We only need a very lightweight mechanism here as the locking is only used for co-ordinating a bitfield. v2: Move the cheap unlikely tests into the caller v3: Move the kerneldoc into the header (now separated out into intel_fronbuffer.h for better kerneldoc and readability) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtien <joonas.lahtinen@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-20-git-send-email-chris@chris-wilson.co.uk
2016-08-04drm/i915: Separate intel_frontbuffer into its own headerChris Wilson1-0/+42
In view of adding inline functions into the intel_frontbuffer section, we first split the header into its own file so that we can integrate it more easily with kerneldoc. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-19-git-send-email-chris@chris-wilson.co.uk