Changes in kernel/generic/include/macros.h [94795812:b0c2075] in mainline

File:

• kernel/generic/include/macros.h (modified) (1 diff)

kernel/generic/include/macros.h

@@ -117 +117 @@
         overlaps(KA2PA((x)), (szx), KA2PA((y)), (szy))
 
+#define PFN2ADDR(frame)  ((frame) << FRAME_WIDTH)
+#define ADDR2PFN(addr)   ((addr) >> FRAME_WIDTH)
+
+#define FRAMES2SIZE(frames)  ((frames) << FRAME_WIDTH)
+#define SIZE2FRAMES(size) \
+        (((size) == 0) ? 0 : ((((size) - 1) >> FRAME_WIDTH) + 1))
+
 #define KiB2SIZE(kb)  ((kb) << 10)
 #define MiB2SIZE(mb)  ((mb) << 20)