* [PATCH] only setup kseg0 coherency after flush_cache_all ...
@ 2004-01-09 23:38 Jun Sun
0 siblings, 0 replies; only message in thread
From: Jun Sun @ 2004-01-09 23:38 UTC (permalink / raw)
To: linux-mips; +Cc: jsun
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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();
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2004-01-09 23:38 [PATCH] only setup kseg0 coherency after flush_cache_all Jun Sun
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