On Sun, Dec 17, 2017 at 10:45:13PM -0200, Gabriel Krisman Bertazi wrote: > > Hi Ben and list folks, > > I've been investigating some CI failures with the kms_ccs testcase in > the GLK hardware. The original bug is linked below, but there are other > more basic tests failing when trying CCS on pipe C. > > https://bugs.freedesktop.org/show_bug.cgi?id=104096 > > The reason for the failure is very straightforward, the function > skl_check_ccs_aux_surface() in intel_display.c rejects CCS modifiers for > PIPE_C, since that is not supported for SKL, KBL and as far as I can > tell APL as well. > > But, since I don't have the specs for GLK yet (it's not available in > 01.org), I can't tell if GLK will support it and the kernel must be > changed or if the testcase itself is bogus. My money is on the later, > but I could use a confirmation before writing down the patch. > > In short, does pipe C support render compression (ccs modifier) in glk? No. But the current code is somewhat busted anyway. See https://patchwork.freedesktop.org/series/29308/ -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
