ACIL FM

Nama	Ukuran	Aksi
sched	-	Open
unaligned	-	Open
align.h	339 B	View DL Edit
arm-smccc.h	5.63 MB	View DL Edit
atomic.h	363 B	View DL Edit
bitfield.h	5.33 MB	View DL Edit
bitmap.h	4.82 MB	View DL Edit
bitops.h	2.15 MB	View DL Edit
bits.h	1.17 MB	View DL Edit
btf_ids.h	5.97 MB	View DL Edit
bug.h	442 B	View DL Edit
build_bug.h	3.04 MB	View DL Edit
compiler-gcc.h	1.24 MB	View DL Edit
compiler.h	5.82 MB	View DL Edit
compiler_types.h	1.09 MB	View DL Edit
const.h	421 B	View DL Edit
coresight-pmu.h	2.32 MB	View DL Edit
ctype.h	1.9 MB	View DL Edit
debug_locks.h	288 B	View DL Edit
delay.h	117 B	View DL Edit
err.h	1.99 MB	View DL Edit
export.h	129 B	View DL Edit
filter.h	9.59 MB	View DL Edit
find.h	5.77 MB	View DL Edit
ftrace.h	120 B	View DL Edit
gfp.h	322 B	View DL Edit
gfp_types.h	46 B	View DL Edit
hardirq.h	280 B	View DL Edit
hash.h	2.93 MB	View DL Edit
hashtable.h	4.44 MB	View DL Edit
interrupt.h	129 B	View DL Edit
interval_tree_generic.h	6.7 MB	View DL Edit
irqflags.h	1.37 MB	View DL Edit
jhash.h	4.46 MB	View DL Edit
kallsyms.h	646 B	View DL Edit
kconfig.h	2.39 MB	View DL Edit
kernel.h	2.64 MB	View DL Edit
kern_levels.h	954 B	View DL Edit
linkage.h	123 B	View DL Edit
list.h	22.48 MB	View DL Edit
list_sort.h	374 B	View DL Edit
lockdep.h	1.43 MB	View DL Edit
log2.h	4.46 MB	View DL Edit
math.h	764 B	View DL Edit
math64.h	1.22 MB	View DL Edit
module.h	270 B	View DL Edit
mutex.h	117 B	View DL Edit
nmi.h	0 B	View DL Edit
numa.h	292 B	View DL Edit
objtool_types.h	1.8 MB	View DL Edit
overflow.h	4.11 MB	View DL Edit
poison.h	2.5 MB	View DL Edit
proc_fs.h	123 B	View DL Edit
rbtree.h	9.32 MB	View DL Edit
rbtree_augmented.h	9.34 MB	View DL Edit
rcu.h	437 B	View DL Edit
refcount.h	4.11 MB	View DL Edit
ring_buffer.h	2.4 MB	View DL Edit
rwsem.h	920 B	View DL Edit
seq_file.h	126 B	View DL Edit
sizes.h	1.12 MB	View DL Edit
slab.h	1.17 MB	View DL Edit
spinlock.h	1.24 MB	View DL Edit
stacktrace.h	678 B	View DL Edit
static_call_types.h	2.74 MB	View DL Edit
string.h	1.4 MB	View DL Edit
stringify.h	380 B	View DL Edit
time64.h	347 B	View DL Edit
types.h	1.72 MB	View DL Edit
zalloc.h	252 B	View DL Edit

Edit file: /usr/src/kernels/5.14.0-611.34.1.el9_7.x86_64/tools/include/linux/bitfield.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2014 Felix Fietkau <nbd@nbd.name>
 * Copyright (C) 2004 - 2009 Ivo van Doorn <IvDoorn@gmail.com>
 */

#ifndef _LINUX_BITFIELD_H
#define _LINUX_BITFIELD_H

#include <linux/build_bug.h>
#include <asm/byteorder.h>

/*
 * Bitfield access macros
 *
 * FIELD_{GET,PREP} macros take as first parameter shifted mask
 * from which they extract the base mask and shift amount.
 * Mask must be a compilation time constant.
 *
 * Example:
 *
 *  #define REG_FIELD_A  GENMASK(6, 0)
 *  #define REG_FIELD_B  BIT(7)
 *  #define REG_FIELD_C  GENMASK(15, 8)
 *  #define REG_FIELD_D  GENMASK(31, 16)
 *
 * Get:
 *  a = FIELD_GET(REG_FIELD_A, reg);
 *  b = FIELD_GET(REG_FIELD_B, reg);
 *
 * Set:
 *  reg = FIELD_PREP(REG_FIELD_A, 1) |
 *	  FIELD_PREP(REG_FIELD_B, 0) |
 *	  FIELD_PREP(REG_FIELD_C, c) |
 *	  FIELD_PREP(REG_FIELD_D, 0x40);
 *
 * Modify:
 *  reg &= ~REG_FIELD_C;
 *  reg |= FIELD_PREP(REG_FIELD_C, c);
 */

#define __bf_shf(x) (__builtin_ffsll(x) - 1)

#define __scalar_type_to_unsigned_cases(type)				\
		unsigned type:	(unsigned type)0,			\
		signed type:	(unsigned type)0

#define __unsigned_scalar_typeof(x) typeof(				\
		_Generic((x),						\
			char:	(unsigned char)0,			\
			__scalar_type_to_unsigned_cases(char),		\
			__scalar_type_to_unsigned_cases(short),		\
			__scalar_type_to_unsigned_cases(int),		\
			__scalar_type_to_unsigned_cases(long),		\
			__scalar_type_to_unsigned_cases(long long),	\
			default: (x)))

#define __bf_cast_unsigned(type, x)	((__unsigned_scalar_typeof(type))(x))

#define __BF_FIELD_CHECK(_mask, _reg, _val, _pfx)			\
	({								\
		BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask),		\
				 _pfx "mask is not constant");		\
		BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero");	\
		BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ?		\
				 ~((_mask) >> __bf_shf(_mask)) & (_val) : 0, \
				 _pfx "value too large for the field"); \
		BUILD_BUG_ON_MSG(__bf_cast_unsigned(_mask, _mask) >	\
				 __bf_cast_unsigned(_reg, ~0ull),	\
				 _pfx "type of reg too small for mask"); \
		__BUILD_BUG_ON_NOT_POWER_OF_2((_mask) +			\
					      (1ULL << __bf_shf(_mask))); \
	})

/**
 * FIELD_MAX() - produce the maximum value representable by a field
 * @_mask: shifted mask defining the field's length and position
 *
 * FIELD_MAX() returns the maximum value that can be held in the field
 * specified by @_mask.
 */
#define FIELD_MAX(_mask)						\
	({								\
		__BF_FIELD_CHECK(_mask, 0ULL, 0ULL, "FIELD_MAX: ");	\
		(typeof(_mask))((_mask) >> __bf_shf(_mask));		\
	})

/**
 * FIELD_FIT() - check if value fits in the field
 * @_mask: shifted mask defining the field's length and position
 * @_val:  value to test against the field
 *
 * Return: true if @_val can fit inside @_mask, false if @_val is too big.
 */
#define FIELD_FIT(_mask, _val)						\
	({								\
		__BF_FIELD_CHECK(_mask, 0ULL, 0ULL, "FIELD_FIT: ");	\
		!((((typeof(_mask))_val) << __bf_shf(_mask)) & ~(_mask)); \
	})

/**
 * FIELD_PREP() - prepare a bitfield element
 * @_mask: shifted mask defining the field's length and position
 * @_val:  value to put in the field
 *
 * FIELD_PREP() masks and shifts up the value.  The result should
 * be combined with other fields of the bitfield using logical OR.
 */
#define FIELD_PREP(_mask, _val)						\
	({								\
		__BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: ");	\
		((typeof(_mask))(_val) << __bf_shf(_mask)) & (_mask);	\
	})

/**
 * FIELD_GET() - extract a bitfield element
 * @_mask: shifted mask defining the field's length and position
 * @_reg:  value of entire bitfield
 *
 * FIELD_GET() extracts the field specified by @_mask from the
 * bitfield passed in as @_reg by masking and shifting it down.
 */
#define FIELD_GET(_mask, _reg)						\
	({								\
		__BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: ");	\
		(typeof(_mask))(((_reg) & (_mask)) >> __bf_shf(_mask));	\
	})

extern void __compiletime_error("value doesn't fit into mask")
__field_overflow(void);
extern void __compiletime_error("bad bitfield mask")
__bad_mask(void);
static __always_inline u64 field_multiplier(u64 field)
{
	if ((field | (field - 1)) & ((field | (field - 1)) + 1))
		__bad_mask();
	return field & -field;
}
static __always_inline u64 field_mask(u64 field)
{
	return field / field_multiplier(field);
}
#define field_max(field)	((typeof(field))field_mask(field))
#define ____MAKE_OP(type,base,to,from)					\
static __always_inline __##type type##_encode_bits(base v, base field)	\
{									\
	if (__builtin_constant_p(v) && (v & ~field_mask(field)))	\
		__field_overflow();					\
	return to((v & field_mask(field)) * field_multiplier(field));	\
}									\
static __always_inline __##type type##_replace_bits(__##type old,	\
					base val, base field)		\
{									\
	return (old & ~to(field)) | type##_encode_bits(val, field);	\
}									\
static __always_inline void type##p_replace_bits(__##type *p,		\
					base val, base field)		\
{									\
	*p = (*p & ~to(field)) | type##_encode_bits(val, field);	\
}									\
static __always_inline base type##_get_bits(__##type v, base field)	\
{									\
	return (from(v) & field)/field_multiplier(field);		\
}
#define __MAKE_OP(size)							\
	____MAKE_OP(le##size,u##size,cpu_to_le##size,le##size##_to_cpu)	\
	____MAKE_OP(be##size,u##size,cpu_to_be##size,be##size##_to_cpu)	\
	____MAKE_OP(u##size,u##size,,)
____MAKE_OP(u8,u8,,)
__MAKE_OP(16)
__MAKE_OP(32)
__MAKE_OP(64)
#undef __MAKE_OP
#undef ____MAKE_OP

#endif

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