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| author | Michael Brown | 2016-03-16 22:18:33 +0100 |
|---|---|---|
| committer | Michael Brown | 2016-03-16 23:33:40 +0100 |
| commit | c867b5ab1ff00fae7f5d89bc0c5f273c40f37f90 (patch) | |
| tree | cd90bd4d94a1576c9cb15aa9ced285373ad8adee /src/include | |
| parent | [pseudobit] Rename bitops.h to pseudobit.h (diff) | |
| download | ipxe-c867b5ab1ff00fae7f5d89bc0c5f273c40f37f90.tar.gz ipxe-c867b5ab1ff00fae7f5d89bc0c5f273c40f37f90.tar.xz ipxe-c867b5ab1ff00fae7f5d89bc0c5f273c40f37f90.zip | |
[bitops] Add generic atomic bit test, set, and clear functions
Signed-off-by: Michael Brown <mcb30@ipxe.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/ipxe/bitops.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/include/ipxe/bitops.h b/src/include/ipxe/bitops.h new file mode 100644 index 000000000..7366cd9f1 --- /dev/null +++ b/src/include/ipxe/bitops.h @@ -0,0 +1,19 @@ +#ifndef _IPXE_BITOPS_H +#define _IPXE_BITOPS_H + +/** @file + * + * Bit operations + * + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include <bits/bitops.h> + +void set_bit ( unsigned int bit, volatile void *bits ); +void clear_bit ( unsigned int bit, volatile void *bits ); +int test_and_set_bit ( unsigned int bit, volatile void *bits ); +int test_and_clear_bit ( unsigned int bit, volatile void *bits ); + +#endif /* _IPXE_BITOPS_H */ |