Module Name: src
Committed By: riastradh
Date: Sun Dec 19 10:57:19 UTC 2021
Modified Files:
src/sys/external/bsd/drm2/include/linux: bitmap.h
Log Message:
bitmap_complement
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/external/bsd/drm2/include/linux/bitmap.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/include/linux/bitmap.h
diff -u src/sys/external/bsd/drm2/include/linux/bitmap.h:1.8 src/sys/external/bsd/drm2/include/linux/bitmap.h:1.9
--- src/sys/external/bsd/drm2/include/linux/bitmap.h:1.8 Mon Aug 27 14:52:16 2018
+++ src/sys/external/bsd/drm2/include/linux/bitmap.h Sun Dec 19 10:57:19 2021
@@ -1,4 +1,4 @@
-/* $NetBSD: bitmap.h,v 1.8 2018/08/27 14:52:16 riastradh Exp $ */
+/* $NetBSD: bitmap.h,v 1.9 2021/12/19 10:57:19 riastradh Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -165,6 +165,21 @@ bitmap_clear(unsigned long *bitmap, size
}
/*
+ * bitmap_complement(dst, src, nbits)
+ *
+ * Set dst to the the bitwise NOT of src. dst and src may alias.
+ */
+static inline void
+bitmap_complement(unsigned long *dst, const unsigned long *src, size_t nbits)
+{
+ const size_t bpl = NBBY * sizeof(unsigned long);
+ size_t n = howmany(nbits, bpl);
+
+ while (n --> 0)
+ *dst++ = ~*src++;
+}
+
+/*
* bitmap_and(dst, src1, src2, nbits)
*
* Set dst to be the bitwise AND of src1 and src2, all bitmaps
