From: Dave Airlie <airlied@redhat.com>
Date: Thu, 28 Nov 2013 23:38:35 +0000 (+0000)
Subject: r600g: don't enable SB for geom shaders
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c4782a58c30473e5f67c7361c6c57160f940a978;p=mesa.git

r600g: don't enable SB for geom shaders

SB needs fixes for three GS instructions it seems to raise
them outside loops etc despite my best efforts.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-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 73b290979fb..59fda7b7e54 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -158,6 +158,9 @@ int r600_pipe_shader_create(struct pipe_context *ctx,
 		return r;
 	}
 
+	/* disable SB for geom shaders - it can't handle the CF_EMIT instructions */
+	use_sb &= (shader->shader.processor_type != TGSI_PROCESSOR_GEOMETRY);
+
 	/* Check if the bytecode has already been built.  When using the llvm
 	 * backend, r600_shader_from_tgsi() will take care of building the
 	 * bytecode.