From: Vadim Girlin <vadimgirlin@gmail.com>
Date: Wed, 18 Jan 2012 19:17:29 +0000 (+0400)
Subject: r600g: fix combined MEM_STREAM instructions
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c97632642a7d84a8a21ffde37b3907632e0d01c0;p=mesa.git

r600g: fix combined MEM_STREAM instructions

BURST_COUNT is clipped with ARRAY_SIZE, so set it to the max value
to avoid clipping.

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 5819c2bc1a0..cfcca36cb25 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -1014,7 +1014,9 @@ static int r600_shader_from_tgsi(struct r600_pipe_context * rctx, struct r600_pi
 			output.type = V_SQ_CF_ALLOC_EXPORT_WORD0_SQ_EXPORT_WRITE;
 			output.burst_count = 1;
 			output.barrier = 1;
-			output.array_size = 0;
+			/* array_size is an upper limit for the burst_count
+			 * with MEM_STREAM instructions */
+			output.array_size = 0xFFF;
 			output.comp_mask = (1 << so.output[i].num_components) - 1;
 			if (ctx.bc->chip_class >= EVERGREEN) {
 				switch (so.output[i].output_buffer) {