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| author | Ian McFarlane <i.mcfarlane2002@gmail.com> | 2025-04-24 15:50:50 -0400 |
|---|---|---|
| committer | Ian McFarlane <i.mcfarlane2002@gmail.com> | 2025-04-24 15:51:29 -0400 |
| commit | 3c213ce446c6547c79f683f035b191e92b4e914e (patch) | |
| tree | d05d172ba28e5e6eb0e607b51e1db92d30003508 /kernel/include | |
| parent | fix paging free fns (diff) | |
| download | comus-3c213ce446c6547c79f683f035b191e92b4e914e.tar.gz comus-3c213ce446c6547c79f683f035b191e92b4e914e.tar.bz2 comus-3c213ce446c6547c79f683f035b191e92b4e914e.zip | |
make alloc_pages_at() able to allocate noncontiguous physical pages
Diffstat (limited to 'kernel/include')
| -rw-r--r-- | kernel/include/lib.h | 1 | ||||
| -rw-r--r-- | kernel/include/lib/kmath.h | 20 |
2 files changed, 21 insertions, 0 deletions
diff --git a/kernel/include/lib.h b/kernel/include/lib.h index be4e739..edfbeb4 100644 --- a/kernel/include/lib.h +++ b/kernel/include/lib.h @@ -15,6 +15,7 @@ #include <lib/kctype.h> #include <lib/kio.h> #include <lib/klib.h> +#include <lib/kmath.h> #include <lib/kstring.h> #endif /* lib.h */ diff --git a/kernel/include/lib/kmath.h b/kernel/include/lib/kmath.h new file mode 100644 index 0000000..3be953d --- /dev/null +++ b/kernel/include/lib/kmath.h @@ -0,0 +1,20 @@ +/** + * @file kmath.h + * + * @author Ian McFarlane <i.mcfarlane2002@gmail.com> + * + * Kernel math functions + */ + +#ifndef _KMATH_H +#define _KMATH_H + +#include <stddef.h> + +// min and max both prefer a over b +#define MAX(a, b) ((a) >= (b) ? (a) : (b)) +#define MIN(a, b) ((a) <= (b) ? (a) : (b)) + +#define CLAMP(val, min, max) (MAX((min), MIN((val), (max)))) + +#endif |