Function report |
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:
Type | Parameter | Name |
---|---|---|
__u64 | x |
368 | bitpos = -1 |
374 | asm("bsrq %1,%q0":"+r"(bitpos):"rm"(x)) |
377 | Return bitpos + 1 |
Name | Describe |
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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_xfeatures | Return 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_threads | set_max_threads |
dma_direct_get_required_mask | |
scale64_check_overflow | Scale base by mult/div checking for overflow |
tnum_range | |
perf_calculate_period | |
add_token_u64 | |
opal_generic_read_write_table | |
fls_long | |
__ilog2_u64 |
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