On Wed, Aug 12, 2015 at 03:10:18PM +0300, Joonas Lahtinen wrote: > On ke, 2015-08-12 at 12:26 +0100, Arun Siluvery wrote: > > From Gen9, by default push constant command is not committed to the > > shader unit > > untill the corresponding shader's BTP_* command is parsed. This is > > the > > behaviour when set shader is enabled. This patch updates the batch to > > follow > > this requirement otherwise it results in gpu hang. > > > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89959 > > > > Set shader need to be disabled if legacy behaviour is required. > > > > Cc: Ben Widawsky <benjamin.widawsky@xxxxxxxxx> > > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > > Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxx> > > Signed-off-by: Arun Siluvery <arun.siluvery@xxxxxxxxxxxxxxx> > > Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > Repeating what I said on the mesa thread: Does anyone understand why this actually causes a hang on the IGT test? I certainly don't. The docs are pretty clear that the constant command is not committed until the BTP command, but I can't make any sense of how it related to a GPU hang. [snip] --- Ben Widawsky, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
