* Flush the wholeD-cache. * Corrupted registers: x0-x7, x9-x11 */ ENTRY(__flush_dcache_all) //保证之前的訪存指令的顺序 dsb sy //读cache level id register mrs x0,clidr_el1// read clidr //取bits[26:24](Level of Coherency for the cache hierarchy.) //须要遵循cache一致性的cache...
我发现flush_dcache_page()在x86架构上的linux内核中没有执行任何操作,如下所示 包括/asm-generic/cacheflush.h Line17#defineflush_dcache_page(page) do {} while (0) Run Code Online (Sandbox Code Playgroud) 我认为 x86 arch 上有缓存刷新指令“CLFLUSH”,它可以用于此页面刷新。 然而,flush_dcache_p...
//如果需要做cache一致性的层级为0,则不需要flush,跳转到finished标记处。 cbz x3, finished // if loc is 0, then no need toclean //x10存放cache级,从level0 cache开始做flush //以下三个循环loop3是set/way(x9), //loop2是index(x7),loop1是cache level(x10) mov x10, #0 // start clean at...
//x1存储ccsidr_el1内容,低三位是(Log2(Number of bytes in cache line)) – 4 //加4后x2=(Log2(Numberof bytes in cache line)) and x2, x1, #7 // extract the length of the cachelines add x2, x2, #4 // add 4 (line length offset) mov x4, #0x3ff //逻辑右移3位,提取bits...
Documentation / / Kernel Functions / flush_dcache Language: Objective-C API Changes: NoneFunction flush_dcache macOS 10.0+ void flush_dcache(vm_offset_t, unsigned int, int);Current page is flush_dcache Apple Developer Documentation ...
flush_dcache Kernel Kernel Functions flush_dcache Function macOS 10.0+ voidflush_dcache(vm_offset_t,unsignedint,int);
flush_dcache_all(); returnerr; } Expand DownExpand Up@@ -914,8 +916,6 @@ static u32 block_copy(void *dst_addr, void *src_addr, #endif } flush_dcache_all(); #ifdefined(WARM_CPU) d=a+b+c+d; if(d==1.0) Expand All@@ -938,7 +938,6 @@ static u32 page_copy(struct st...
xil_dcacheflush函数是用于特定缓存操作的重要函数。 该函数在相关系统中对数据一致性维护有重要作用。它能确保数据在缓存与主存间的正确同步。调用此函数可防止数据在缓存中出现不一致情况。当数据更新后常需使用xil_dcacheflush函数。它的执行能保障后续读取到最新的数据。多线程环境下xil_dcacheflush函数作用关键。此...
void FlushDCache(void); Parameters None. Return Values None. Remarks Only the MIPS and ARM kernels support this function. This is a required function of OAL, first called inKernelStart. Requirements OS Versions:Windows CE .NET 4.0 and later. ...
* Flush the wholeD-cache. * Corrupted registers: x0-x7, x9-x11 */ ENTRY(__flush_dcache_all) //保证之前的访存指令的顺序 dsb sy //读cache level id register mrs x0,clidr_el1 // read clidr //取bits[26:24](Level of Coherency for the cache hierarchy.) ...