From e93848e595176ae0bad3bfe64e0ca63fd089bb72 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Mon, 3 Aug 2009 15:24:02 -0700 Subject: i965: Make sure the VS URB size is big enough to fit a VF VUE. This fix is just from code and docs inspection, but it may fix hangs on some applications. --- src/mesa/drivers/dri/i965/brw_vs_emit.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'src/mesa/drivers') diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 514f15d5e3..d27b1c89bd 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -68,6 +68,7 @@ static void release_tmps( struct brw_vs_compile *c ) static void brw_vs_alloc_regs( struct brw_vs_compile *c ) { GLuint i, reg = 0, mrf; + int attributes_in_vue; /* Determine whether to use a real constant buffer or use a block * of GRF registers for constants. The later is faster but only @@ -221,10 +222,15 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) */ c->prog_data.urb_read_length = (c->nr_inputs + 1) / 2; + /* The VS VUEs are shared by VF (outputting our inputs) and VS, so size + * them to fit the biggest thing they need to. + */ + attributes_in_vue = MAX2(c->nr_outputs, c->nr_inputs); + if (BRW_IS_IGDNG(c->func.brw)) - c->prog_data.urb_entry_size = (c->nr_outputs + 6 + 3) / 4; + c->prog_data.urb_entry_size = (attributes_in_vue + 6 + 3) / 4; else - c->prog_data.urb_entry_size = (c->nr_outputs + 2 + 3) / 4; + c->prog_data.urb_entry_size = (attributes_in_vue + 2 + 3) / 4; c->prog_data.total_grf = reg; -- cgit v1.2.3