1 files changed, 24 insertions, 0 deletions
diff --git a/bitmap.h b/bitmap.h
new file mode 100644
index 0000000..b6e91c0
--- /dev/null
+++ b/bitmap.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ * Copyright Red Hat
+ * Author: Stefano Brivio <sbrivio@redhat.com>
+ */
+
+#ifndef BITMAP_H
+#define BITMAP_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define BIT(n)			(1UL << (n))
+#define BITMAP_BIT(n)		(BIT((n) % (sizeof(long) * 8)))
+#define BITMAP_WORD(n)		(n / (sizeof(long) * 8))
+
+void bitmap_set(uint8_t *map, unsigned bit);
+void bitmap_clear(uint8_t *map, unsigned bit);
+bool bitmap_isset(const uint8_t *map, unsigned bit);
+void bitmap_or(uint8_t *dst, size_t size, const uint8_t *a, const uint8_t *b);
+void bitmap_and_not(uint8_t *dst, size_t size,
+		    const uint8_t *a, const uint8_t *b);
+
+#endif /* BITMAP_H */