commit 03982603f0c56bc57df04663c977c4b474263ff4
author Marek Olšák <marek.olsak@amd.com> Wed Feb 22 19:56:26 2017 +0100
committer Emil Velikov <emil.l.velikov@gmail.com> Wed Mar 01 13:36:57 2017 +0000
tree 4541267a093f4b09e94c3d25bd455eb761dd9854
parent 0a8df0685e7a9d6db3a1765a9de701565c759493

radeonsi: fix broken tessellation on Carrizo and Stoney

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99850

Cc: 13.0 17.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 35915af6c9ab4bdc0f1f8584ca346602405bd7e4)

src/gallium/drivers/radeonsi/si_state_shaders.c

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 76e748f..caf20e5 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2213,7 +2213,9 @@
 
 static void si_init_tess_factor_ring(struct si_context *sctx)
 {
-	bool double_offchip_buffers = sctx->b.chip_class >= CIK;
+	bool double_offchip_buffers = sctx->b.chip_class >= CIK &&
+				      sctx->b.family != CHIP_CARRIZO &&
+				      sctx->b.family != CHIP_STONEY;
 	unsigned max_offchip_buffers_per_se = double_offchip_buffers ? 128 : 64;
 	unsigned max_offchip_buffers = max_offchip_buffers_per_se *
 				       sctx->screen->b.info.max_se;