Daniel Vetter <daniel@xxxxxxxx> writes: > On Mon, Apr 10, 2017 at 06:44:14PM -0700, Eric Anholt wrote: >> This is needed for proper synchronization with display on another DRM >> device (pl111 or tinydrm) with buffers produced by vc4 V3D. Fixes the >> new igt vc4_dmabuf_poll testcase, and rendering of one of the glmark2 >> desktop tests on pl111+vc4. >> >> This doesn't yet introduce waits on other device's fences before vc4's >> rendering/display, because I don't have testcases for them. >> >> Signed-off-by: Eric Anholt <eric@xxxxxxxxxx> >> Cc: Gustavo Padovan <gustavo.padovan@xxxxxxxxxxxxx> > > So not sure I didn't look hard enough or why exactly, but I didn't find > anything like ->prepare_fb as implemented in e.g. drm_fb_cma_prepare_fb(). > Where is that? Otherwise looks good to me. Yeah, I need to sort that out for vc4 as a consumer of busy buffers still. This patch just does vc4 as the producer.
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