Messages in this thread | | | Date | Mon, 1 Oct 2007 11:23:05 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: linux cache routines for Write-back cache policy on MIPS24KE |
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On Mon, 1 Oct 2007, veerasena reddy wrote: > I have ported Linux-2.6.18 kernel on MIPS24KE > processor. I am using write back cache policy. > > Could you please guide me under what cases the below > cache API's are being used: > - dma_cache_wback_inv() : Could you explain what > exactly this function does
It does both write back and invalidate.
> - dma_cache_wback() : This function write back the > cache data to memory > - dma_cache_inv : This function invalidate the cache > tags. so subsequent access will fetch from memory.
Note that 2.6.18 is old. The above functions are intended to be removed.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
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