i965/nir/vec4: Prepare source and destination registers for ALU operations

[mesa.git] / src / mesa / drivers / dri / i965 / brw_reg.h

diff --git a/src/mesa/drivers/dri/i965/brw_reg.h b/src/mesa/drivers/dri/i965/brw_reg.h
index c03a8aed7961fc4c59edeac9795a77da794761c5..31806f769bd48da85c48092f93a916f220ed6879 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_reg.h
+++ b/src/mesa/drivers/dri/i965/brw_reg.h
@@ -764,6 +764,22 @@ brw_ip_reg(void)
                   WRITEMASK_XYZW); /* NOTE! */
 }
 
+static inline struct brw_reg
+brw_notification_reg(void)
+{
+   return brw_reg(BRW_ARCHITECTURE_REGISTER_FILE,
+                  BRW_ARF_NOTIFICATION_COUNT,
+                  0,
+                  0,
+                  0,
+                  BRW_REGISTER_TYPE_UD,
+                  BRW_VERTICAL_STRIDE_0,
+                  BRW_WIDTH_1,
+                  BRW_HORIZONTAL_STRIDE_0,
+                  BRW_SWIZZLE_XXXX,
+                  WRITEMASK_X);
+}
+
 static inline struct brw_reg
 brw_acc_reg(unsigned width)
 {
@@ -778,7 +794,11 @@ brw_flag_reg(int reg, int subreg)
                       BRW_ARF_FLAG + reg, subreg);
 }
 
-
+/**
+ * Return the mask register present in Gen4-5, or the related register present
+ * in Gen7.5 and later hardware referred to as "channel enable" register in
+ * the documentation.
+ */
 static inline struct brw_reg
 brw_mask_reg(unsigned subnr)
 {
@@ -833,7 +853,7 @@ static inline struct brw_reg
 spread(struct brw_reg reg, unsigned s)
 {
    if (s) {
-      assert(is_power_of_two(s));
+      assert(_mesa_is_pow_two(s));
 
       if (reg.hstride)
          reg.hstride += cvt(s) - 1;
@@ -930,6 +950,12 @@ brw_set_writemask(struct brw_reg reg, unsigned mask)
    return reg;
 }
 
+static inline unsigned
+brw_writemask_for_size(unsigned n)
+{
+   return (1 << n) - 1;
+}
+
 static inline struct brw_reg
 negate(struct brw_reg reg)
 {