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-rw-r--r--src/mesa/drivers/dri/i965/brw_wm_emit.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c
index d03756067a..96fecc97ee 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c
@@ -896,11 +896,12 @@ void emit_math1(struct brw_wm_compile *c,
BRW_MATH_SATURATE_NONE);
struct brw_reg src;
- if (intel->gen >= 6 && arg0[0].hstride == BRW_HORIZONTAL_STRIDE_0) {
- /* Gen6 math requires that source and dst horizontal stride be 1.
- *
+ if (intel->gen >= 6 && (arg0[0].hstride == BRW_HORIZONTAL_STRIDE_0 ||
+ arg0[0].file != BRW_GENERAL_REGISTER_FILE)) {
+ /* Gen6 math requires that source and dst horizontal stride be 1,
+ * and that the argument be in the GRF.
*/
- src = *dst;
+ src = dst[dst_chan];
brw_MOV(p, src, arg0[0]);
} else {
src = arg0[0];