diff options
Diffstat (limited to 'lib/sbi')
-rw-r--r-- | lib/sbi/objects.mk | 1 | ||||
-rw-r--r-- | lib/sbi/sbi_bitmap.c | 40 |
2 files changed, 41 insertions, 0 deletions
diff --git a/lib/sbi/objects.mk b/lib/sbi/objects.mk index d2a3ebe..5f1bdbf 100644 --- a/lib/sbi/objects.mk +++ b/lib/sbi/objects.mk @@ -12,6 +12,7 @@ libsbi-objs-y += riscv_atomic.o libsbi-objs-y += riscv_hardfp.o libsbi-objs-y += riscv_locks.o +libsbi-objs-y += sbi_bitmap.o libsbi-objs-y += sbi_bitops.o libsbi-objs-y += sbi_console.o libsbi-objs-y += sbi_ecall.o diff --git a/lib/sbi/sbi_bitmap.c b/lib/sbi/sbi_bitmap.c new file mode 100644 index 0000000..e74b6bb --- /dev/null +++ b/lib/sbi/sbi_bitmap.c @@ -0,0 +1,40 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel <anup.patel@wdc.com> + */ + +#include <sbi/sbi_bitmap.h> + +void __bitmap_and(unsigned long *dst, const unsigned long *bitmap1, + const unsigned long *bitmap2, int bits) +{ + int k; + int nr = BITS_TO_LONGS(bits); + + for (k = 0; k < nr; k++) + dst[k] = bitmap1[k] & bitmap2[k]; +} + +void __bitmap_or(unsigned long *dst, const unsigned long *bitmap1, + const unsigned long *bitmap2, int bits) +{ + int k; + int nr = BITS_TO_LONGS(bits); + + for (k = 0; k < nr; k++) + dst[k] = bitmap1[k] | bitmap2[k]; +} + +void __bitmap_xor(unsigned long *dst, const unsigned long *bitmap1, + const unsigned long *bitmap2, int bits) +{ + int k; + int nr = BITS_TO_LONGS(bits); + + for (k = 0; k < nr; k++) + dst[k] = bitmap1[k] ^ bitmap2[k]; +} |