From: Jun Sun <jsun@mvista.com>
To: linux-mips@linux-mips.org
Cc: jsun@mvista.com
Subject: [PATCH] only setup kseg0 coherency after flush_cache_all ...
Date: Fri, 9 Jan 2004 15:38:57 -0800 [thread overview]
Message-ID: <20040109153857.I24193@mvista.com> (raw)
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The change is needed to make CONFIG_MIPS_UNCACHED work.
Otherwise you end up with accessing stale data right after
switching off cache.
If no objections, I will check it in later.
Jun
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diff -Nru arch/mips/mm/c-r4k.c.orig arch/mips/mm/c-r4k.c
--- arch/mips/mm/c-r4k.c.orig Mon Jan 5 10:33:35 2004
+++ arch/mips/mm/c-r4k.c Fri Jan 9 15:32:18 2004
@@ -1031,7 +1031,6 @@
probe_pcache();
setup_scache();
- coherency_setup();
if (c->dcache.sets * c->dcache.ways > PAGE_SIZE)
c->dcache.flags |= MIPS_CACHE_ALIASES;
@@ -1073,6 +1072,7 @@
#endif
__flush_cache_all();
+ coherency_setup();
build_clear_page();
build_copy_page();
reply other threads:[~2004-01-09 23:39 UTC|newest]
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