Alright, will do. Thanks, Alex -----Original Message----- From: Daniel Vetter [mailto:daniel.vetter@xxxxxxxx] On Behalf Of Daniel Vetter Sent: Friday, November 20, 2015 12:21 AM To: Alexander Goins Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx; daniel@xxxxxxxxxxxxx; daniel@xxxxxxxx; maarten.lankhorst@xxxxxxxxxxxxxxx; chris@xxxxxxxxxxxxxxxxxx Subject: Re: [PATCH i915 v4 1/2] i915: wait for fences in mmio_flip() On Thu, Nov 19, 2015 at 07:51:25PM -0800, Alex Goins wrote: > If a buffer is backed by dmabuf, wait on its reservation object's > fences before flipping. > > Signed-off-by: Alex Goins <agoins@xxxxxxxxxx> When resending patches please add a per-revision changelog to each patch with notes what changed. Otherwise reviewers have to recollect all the context themselves by digging through old threads. Can you please resend with that added? Thanks, Daniel > --- > drivers/gpu/drm/i915/intel_display.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_display.c > b/drivers/gpu/drm/i915/intel_display.c > index b2270d5..4867ff0 100644 > --- a/drivers/gpu/drm/i915/intel_display.c > +++ b/drivers/gpu/drm/i915/intel_display.c > @@ -44,6 +44,8 @@ > #include <drm/drm_plane_helper.h> > #include <drm/drm_rect.h> > #include <linux/dma_remapping.h> > +#include <linux/reservation.h> > +#include <linux/dma-buf.h> > > /* Primary plane formats for gen <= 3 */ static const uint32_t > i8xx_primary_formats[] = { @@ -11088,6 +11090,8 @@ static bool > use_mmio_flip(struct intel_engine_cs *ring, > return true; > else if (i915.enable_execlists) > return true; > + else if (obj->base.dma_buf && obj->base.dma_buf->resv->fence_excl) > + return true; > else > return ring != i915_gem_request_get_ring(obj->last_write_req); > } > @@ -11170,8 +11174,18 @@ static void ilk_do_mmio_flip(struct > intel_crtc *intel_crtc) static void intel_do_mmio_flip(struct > intel_crtc *intel_crtc) { > struct drm_device *dev = intel_crtc->base.dev; > + struct intel_framebuffer *intel_fb = > + to_intel_framebuffer(intel_crtc->base.primary->fb); > + struct drm_i915_gem_object *obj = intel_fb->obj; > u32 start_vbl_count; > > + /* For framebuffer backed by dmabuf, wait for fence */ > + if (obj->base.dma_buf) { > + reservation_object_wait_timeout_rcu( > + obj->base.dma_buf->resv, > + false, true, MAX_SCHEDULE_TIMEOUT); > + } > + > intel_mark_page_flip_active(intel_crtc); > > intel_pipe_update_start(intel_crtc, &start_vbl_count); > -- > 1.9.1 > > > ---------------------------------------------------------------------- > ------------- This email message is for the sole use of the intended > recipient(s) and may contain confidential information. Any > unauthorized review, use, disclosure or distribution is prohibited. > If you are not the intended recipient, please contact the sender by > reply email and destroy all copies of the original message. > ---------------------------------------------------------------------- > ------------- -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
