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>

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index f615aa84471371287ab8c9e9aa9a0360b3d03a5d..750cdd638be99acab30c766e9f453aecce3e1f79 100644 (file)
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2312,7 +2312,9 @@ static bool si_update_spi_tmpring_size(struct si_context *sctx)
 
 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;