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-rw-r--r--src/mesa/drivers/dri/i965/brw_defines.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h
index ade3ede082f..a511d5c9a83 100644
--- a/src/mesa/drivers/dri/i965/brw_defines.h
+++ b/src/mesa/drivers/dri/i965/brw_defines.h
@@ -1720,6 +1720,19 @@ enum brw_message_target {
#define HSW_DATAPORT_DC_PORT1_ATOMIC_COUNTER_OP_SIMD4X2 12
#define HSW_DATAPORT_DC_PORT1_TYPED_SURFACE_WRITE 13
+/* Dataport special binding table indices: */
+#define BRW_BTI_STATELESS 255
+#define GEN7_BTI_SLM 254
+/* Note that on Gen8+ BTI 255 was redefined to be IA-coherent according to the
+ * hardware spec, however because the DRM sets bit 4 of HDC_CHICKEN0 on BDW,
+ * CHV and at least some pre-production steppings of SKL due to
+ * WaForceEnableNonCoherent, HDC memory access may have been overridden by the
+ * kernel to be non-coherent (matching the behavior of the same BTI on
+ * pre-Gen8 hardware) and BTI 255 may actually be an alias for BTI 253.
+ */
+#define GEN8_BTI_STATELESS_IA_COHERENT 255
+#define GEN8_BTI_STATELESS_NON_COHERENT 253
+
/* dataport atomic operations. */
#define BRW_AOP_AND 1
#define BRW_AOP_OR 2