freedreno/isa: add bitmask to/from uint64_t helper

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Rob Clark <robdclark@chromium.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11321>

src/freedreno/isa/decode.py

@@ -216,6 +216,7 @@ header = """\
 #ifndef _${guard}_
 #define _${guard}_
 
+#include <stdint.h>
 #include <util/bitset.h>
 
 typedef struct {
@@ -223,6 +224,23 @@ typedef struct {
 } bitmask_t;
 
 
+static inline uint64_t
+bitmask_to_uint64_t(bitmask_t mask)
+{
+    return ((uint64_t)mask.bitset[1] << 32) | mask.bitset[0];
+}
+
+static inline bitmask_t
+uint64_t_to_bitmask(uint64_t val)
+{
+    bitmask_t mask = {
+        .bitset[0] = val & 0xffffffff,
+        .bitset[1] = (val >> 32) & 0xffffffff,
+    };
+
+    return mask;
+}
+
 #endif /* _${guard}_ */
 
 """

src/freedreno/isa/encode.py

@@ -339,6 +339,23 @@ typedef struct {
     BITSET_WORD bitset[BITSET_WORDS(${isa.bitsize})];
 } bitmask_t;
 
+static inline uint64_t
+bitmask_to_uint64_t(bitmask_t mask)
+{
+    return ((uint64_t)mask.bitset[1] << 32) | mask.bitset[0];
+}
+
+static inline bitmask_t
+uint64_t_to_bitmask(uint64_t val)
+{
+    bitmask_t mask = {
+        .bitset[0] = val & 0xffffffff,
+        .bitset[1] = (val >> 32) & 0xffffffff,
+    };
+
+    return mask;
+}
+
 /**
  * Opaque type from the PoV of generated code, but allows state to be passed
  * thru to the hand written helpers used by the generated code.