| To: | Atsushi Nemoto <anemo@mba.ocn.ne.jp> |
|---|---|
| Subject: | Re: flush_kernel_dcache_page() not needed ? |
| From: | Franck Bui-Huu <vagabon.xyz@gmail.com> |
| Date: | Fri, 14 Sep 2007 17:47:45 +0200 |
| Cc: | linux-mips@linux-mips.org |
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Atsushi Nemoto wrote:
> On Fri, 14 Sep 2007 10:32:48 +0200, Franck Bui-Huu <vagabon.xyz@gmail.com>
> wrote:
>> BTW, flush_cache_mm() flushes (write back + invalidate ) the whole
>> data cache unconditionnaly, but I'm wondering if it's really necessary
>> for cpus which don't have any cache aliasing issues. After all they're
>> equivalent to physical caches, aren't they ?
>
> r4k_flush_cache_mm() returns immediately if !cpu_has_dc_aliases.
>
oops you're right, I was actually looking at local_r4k_flush_cache_mm().
thanks,
Franck
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