3 files changed, 7 insertions, 3 deletions

diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 8837a7272b5..3f1979b9ccb 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -169,7 +169,10 @@ static int r600_pipe_shader_ps(struct pipe_context *ctx, struct r600_context_sta
 	for (i = 0; i < rshader->ninput; i++) {
 		tmp = S_028644_SEMANTIC(rshader->input[i].sid);
 		tmp |= S_028644_SEL_CENTROID(1);
-		tmp |= S_028644_FLAT_SHADE(rshader->flat_shade);
+		if (rshader->input[i].name == TGSI_SEMANTIC_COLOR ||
+			rshader->input[i].name == TGSI_SEMANTIC_BCOLOR) {
+			tmp |= S_028644_FLAT_SHADE(rshader->flat_shade);
+		}
 		state->states[R600_PS_SHADER__SPI_PS_INPUT_CNTL_0 + i] = tmp;
 	}
 	state->states[R600_PS_SHADER__SPI_PS_IN_CONTROL_0] = S_0286CC_NUM_INTERP(rshader->ninput) |
@@ -287,6 +290,7 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
 		i = ctx->shader->ninput++;
 		ctx->shader->input[i].name = d->Semantic.Name;
 		ctx->shader->input[i].sid = d->Semantic.Index;
+		ctx->shader->input[i].interpolate = d->Declaration.Interpolate;
 		ctx->shader->input[i].gpr = ctx->file_offset[TGSI_FILE_INPUT] + i;
 		if (ctx->type == TGSI_PROCESSOR_VERTEX) {
 			/* turn input into fetch */
@@ -313,6 +317,7 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
 		ctx->shader->output[i].name = d->Semantic.Name;
 		ctx->shader->output[i].sid = d->Semantic.Index;
 		ctx->shader->output[i].gpr = ctx->file_offset[TGSI_FILE_OUTPUT] + i;
+		ctx->shader->output[i].interpolate = d->Declaration.Interpolate;
 		break;
 	case TGSI_FILE_CONSTANT:
 	case TGSI_FILE_TEMPORARY:
diff --git a/src/gallium/drivers/r600/r600_shader.h b/src/gallium/drivers/r600/r600_shader.h
index 23b6a83b9a9..ee0381e8bdd 100644
--- a/src/gallium/drivers/r600/r600_shader.h
+++ b/src/gallium/drivers/r600/r600_shader.h
@@ -29,6 +29,7 @@ struct r600_shader_io {
 	unsigned		name;
 	unsigned		gpr;
 	int			sid;
+	unsigned		interpolate;
 };
 
 struct r600_shader {
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c
index 0f1e1cd7610..5b98dbe236f 100644
--- a/src/gallium/drivers/r600/r600_state.c
+++ b/src/gallium/drivers/r600/r600_state.c
@@ -692,8 +692,6 @@ static struct radeon_state *r600_rasterizer(struct r600_context *rctx)
 	struct radeon_state *rstate;
 
 	rctx->flat_shade = state->flatshade;
-	rctx->flat_shade = 0;
-R600_ERR("flat shade with texture broke tex coord interp\n");
 	rstate = radeon_state(rscreen->rw, R600_RASTERIZER_TYPE, R600_RASTERIZER);
 	if (rstate == NULL)
 		return NULL;