Messages in this thread |  | | Subject | Re: [PATCH] change name of rep_nop | Date | Mon, 8 Oct 2001 23:49:41 +0100 (BST) | From | Alan Cox <> |
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> While we're on the subject of stupidly named routines and x86-isms, I'm > having trouble reconciling this text in Documentation/cachetlb.txt: > > 1) void flush_cache_all(void) > > The most severe flush of all. After this interface runs, > the entire cpu cache is flushed.
I suspect the real definition should be
"After this interface runs the device and other views of memory includes all dirty cache lines on the processor. On processors with cache coherent bus interfaces this may well be a no operation
Footnote: AGP tends to have its own coherency and caching setup so the AGP drivers use their own interfaces to avoid needless overhead"
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