Date: Mon, 27 Sep 2010 13:08:55 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= <phcoder@gmail.com> To: freebsd-mips@freebsd.org Subject: Re: [PATCH] [yeeloong] Fix ignoring of caching attributes in some code pathes Message-ID: <4CA07B47.9040101@gmail.com> In-Reply-To: <4CA04734.9040504@gmail.com>
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[-- Attachment #1 --]
On 09/27/2010 09:26 AM, Vladimir 'φ-coder/phcoder' Serbinenko wrote:
> Hello. In some code pathes PTE_C_CACHE is returned when caching is
> already actually handled in another OR which may account either for
> ignored attribute or a caching mode which isn supported by given CPU at all
>
>
--
Regards
Vladimir 'φ-coder/phcoder' Serbinenko
[-- Attachment #2 --]
=== modified file 'mips/mips/pmap.c'
--- mips/mips/pmap.c 2010-08-13 22:16:49 +0000
+++ mips/mips/pmap.c 2010-08-17 11:36:08 +0000
@@ -3252,16 +3252,16 @@
int rw;
if (!(prot & VM_PROT_WRITE))
- rw = PTE_V | PTE_RO | PTE_C_CACHE;
+ rw = PTE_RO;
else if ((m->flags & (PG_FICTITIOUS | PG_UNMANAGED)) == 0) {
if ((m->md.pv_flags & PV_TABLE_MOD) != 0)
- rw = PTE_V | PTE_D | PTE_C_CACHE;
+ rw = PTE_D;
else
- rw = PTE_V | PTE_C_CACHE;
+ rw = 0;
vm_page_flag_set(m, PG_WRITEABLE);
} else
/* Needn't emulate a modified bit for unmanaged pages. */
- rw = PTE_V | PTE_D | PTE_C_CACHE;
+ rw = PTE_D;
return (rw);
}
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