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-rw-r--r--src/mesa/drivers/dri/i965/brw_defines.h2
-rw-r--r--src/mesa/drivers/dri/i965/gen7_wm_state.c3
2 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index e7326c6ca3f..2d47ef85520 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -1395,6 +1395,8 @@ enum brw_wm_barycentric_interp_mode {
/* DW4 */
# define IVB_PS_MAX_THREADS_SHIFT 24
# define HSW_PS_MAX_THREADS_SHIFT 23
+# define HSW_PS_SAMPLE_MASK_SHIFT 12
+# define HSW_PS_SAMPLE_MASK_MASK INTEL_MASK(19, 12)
# define GEN7_PS_PUSH_CONSTANT_ENABLE (1 << 11)
# define GEN7_PS_ATTRIBUTE_ENABLE (1 << 10)
# define GEN7_PS_OMASK_TO_RENDER_TARGET (1 << 9)
diff --git a/src/mesa/drivers/dri/i965/gen7_wm_state.c b/src/mesa/drivers/dri/i965/gen7_wm_state.c
index 773598f2c48..024c855ab12 100644
--- a/src/mesa/drivers/dri/i965/gen7_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_wm_state.c
@@ -155,6 +155,9 @@ upload_ps_state(struct brw_context *brw)
if (intel->ctx.Shader.CurrentFragmentProgram == NULL)
dw2 |= GEN7_PS_FLOATING_POINT_MODE_ALT;
+ if (intel->is_haswell)
+ dw4 |= SET_FIELD(1, HSW_PS_SAMPLE_MASK); /* 1 sample for now */
+
dw4 |= (brw->max_wm_threads - 1) << max_threads_shift;
/* CACHE_NEW_WM_PROG */