Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\include\asm\processor.h Create Date:2022-07-28 05:35:12
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:3dnow prefetch to get an exclusive cache line.* Useful for spinlocks to avoid one state transition in the* cache coherency protocol:

Proto:static inline void prefetchw(const void *x)

Type:void

Parameter:

TypeParameterName
const void *x
836  Alternative inline assembly with input.* Peculiarities:* No memory clobber here.* Argument numbers start with 1.* Best is to use constraints that are fixed size (like (%1) ... "r")* If you use variable sized constraints like "m" or "g" in the(BASE_PREFETCH, "prefetchw %P1", 3DNow prefetch instructions , "m"( * (constchar * )x))
Caller
NameDescribe
queued_spin_lock_slowpathqueued_spin_lock_slowpath - acquire the queued spinlock*@lock: Pointer to queued spinlock structure*@val: Current value of the queued spinlock 32-bit word* (queue tail, pending bit, lock value)* fast : slow : unlock* : :* uncontended (0,0,0) -:--> (0,0,1)
cpu_map_kthread_run
__free_pages_core
slab_alloc
mpage_readpagesmpage_readpages - populate an address space with some pages & start reads against them*@mapping: the address_space*@pages: The address of a list_head which contains the target pages. These
spin_lock_prefetch