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* Added CPUID thing
* Reworked some kernel.h macros and definitions
This commit is contained in:
Tom-on
2026-03-20 18:17:25 +01:00
parent 1542cf0ada
commit 0214b4da31
3 changed files with 101 additions and 12 deletions
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kernel/include/kernel.h
+23 -4
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@@ -29,22 +29,37 @@ typedef __builtin_va_list va_list;
/*
* Utility macros
*/
// Assertions
#define STATIC_ASSERT(_cond, _msg)\
typedef int static_assert_##_msg[(_cond) ? 1 : -1]
// Array
#define ARRAY_SIZE(_a) (sizeof((_a)) / sizeof((_a)[0]))
#define BIT(_n) (1UL << (_n))
#define BIT_MASK(_n) (BIT(_n) - 1)
#define ALIGN(_x, _a) __ALIGN_MASK((_x), (typeof(_x))(_a) - 1)
#define __ALIGN_MASK(_x, _m) (((_x) + (_m)) & ~(_m))
#define array_sizeof ARRAY_SIZE
#define container_of(_p, _t, _m) \
((_t*)((char*)(_p) - offsetof(_t, _m)))
// Align
#define ALIGN(x, a) __ALIGN_MASK((x), (typeof(x))(a) - 1)
#define ALIGN_DOWN(x, a) ((x) & ~((typeof(x))(a) - 1))
#define __ALIGN_MASK(x, mask) (((x) + (mask)) & ~(mask))
#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a)))
#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a)))
// Bit
#define BIT(_n) (1UL << (_n))
#define BIT_MASK(_n) (BIT(_n) - 1)
// Math
#define swap(_a, _b) ({ typeof(_a) _tmp = (_a); (_a) = (_b); (_b) = (_a); })
#define min(_x, _y) ({ typeof(_x) __x = (_x); typeof(_y) __y = (_y); __x < __y ? __x : __y; })
#define max(_x, _y) ({ typeof(_x) __x = (_x); typeof(_y) __y = (_y); __x > __y ? __x : __y; })
#define ceil(_x, _y) ((((_x) + (_y)) (_y)) * (_y))
#define floor(_x, _y) ((_x) - ((_x) % (_y)))
#define dceil(_x, _y) (((_x) + (_y) - 1) / (_y))
// Misc
#define fence() __asm__ volatile ("":::"memory")
/*
@@ -74,11 +89,15 @@ typedef signed char int8_t;
typedef signed short int16_t;
typedef signed int int32_t;
typedef signed long int64_t;
typedef uint64_t size_t;
typedef int64_t ssize_t;
typedef uint64_t uintptr_t;
typedef int64_t intptr_t;
typedef uint64_t offset_t;
/*
* Boolean
*/