Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\bitops.h Create Date:2022-07-28 05:34:12
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:ls64 - find last set bit in a 64-bit word*@x: the word to search* This is defined in a similar way as the libc and compiler builtin* ffsll, but returns the position of the most significant set bit

Proto:static __always_inline int fls64(__u64 x)

Type:int

Parameter:

TypeParameterName
__u64x
368  bitpos = -1
374  asm("bsrq %1,%q0":"+r"(bitpos):"rm"(x))
377  Return bitpos + 1
Caller
NameDescribe
int_sqrt64_sqrt64 - strongly typed int_sqrt function when minimum 64 bit input* is expected.*@x: 64bit integer of which to calculate the sqrt
cpu_has_xfeaturesReturn whether the system supports a given xfeature.* Also return the name of the (most advanced) feature that the caller requested:
generic_get_mtrr
set_max_threadsset_max_threads
dma_direct_get_required_mask
scale64_check_overflowScale base by mult/div checking for overflow
tnum_range
perf_calculate_period
add_token_u64
opal_generic_read_write_table
fls_long
__ilog2_u64