[Mesa-dev] [PATCH] radeonsi: fix broken tessellation on Carrizo and Stoney

[Marek Olšák]

From: Marek Olšák <marek.olsak at amd.com>

Cc: 13.0 17.0 <mesa-stable at lists.freedesktop.org>
---
 src/gallium/drivers/radeonsi/si_state_shaders.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c b/src/gallium/drivers/radeonsi/si_state_shaders.c
index f615aa8..750cdd6 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -2305,21 +2305,23 @@ static bool si_update_spi_tmpring_size(struct si_context *sctx)
 			   S_0286E8_WAVESIZE(scratch_bytes_per_wave >> 10);
 	if (spi_tmpring_size != sctx->spi_tmpring_size) {
 		sctx->spi_tmpring_size = spi_tmpring_size;
 		si_mark_atom_dirty(sctx, &sctx->scratch_state);
 	}
 	return true;
 }
 
 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;
 	unsigned offchip_granularity;
 
 	switch (sctx->screen->tess_offchip_block_dw_size) {
 	default:
 		assert(0);
 		/* fall through */
 	case 8192:
-- 
2.7.4