mem, alpha: Move Alpha-specific request flags

Move Alpha-specific memory request flags to an architecture-specific
header and map them to the architecture specific flag bit range.

1 files changed, 16 insertions, 0 deletions

diff --git a/src/arch/alpha/types.hh b/src/arch/alpha/types.hh
index b1411d46e..aaa0f0b2a 100644
--- a/src/arch/alpha/types.hh
+++ b/src/arch/alpha/types.hh
@@ -51,6 +51,22 @@ enum annotes
     ITOUCH_ANNOTE = 0xffffffff
 };
 
+/**
+ * Alpha-specific memory request flags
+ *
+ * These flags map to the architecture-specific lower 8 bits of the
+ * flags field in Request.
+ */
+struct AlphaRequestFlags
+{
+    typedef uint8_t ArchFlagsType;
+
+    /** The request is an ALPHA VPTE pal access (hw_ld). */
+    static const ArchFlagsType VPTE    = 0x01;
+    /** Use the alternate mode bits in ALPHA. */
+    static const ArchFlagsType ALTMODE = 0x02;
+};
+
 } // namespace AlphaISA
 
 #endif // __ARCH_ALPHA_TYPES_HH__