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authorVitaly Bordug <vitb@kernel.crashing.org>2008-03-06 13:53:30 +0300
committerKumar Gala <galak@kernel.crashing.org>2008-03-07 08:42:28 -0600
commit76db5bd26f2d79712459bf80ce0e5c0c5c31b769 (patch)
tree0e5723534da93040f901ed94020aef845fff0dfb /include/asm-powerpc
parentd7f46190ef1048e48f71c8a7a60c2881c437d08d (diff)
[POWERPC] 8xx: fix swap
This makes swap routines operate correctly on the ppc_8xx based machines. Code has been revalidated on mpc885ads (8M sdram) with recent kernel. Based on patch from Yuri Tikhonov <yur@emcraft.com> to do the same on arch/ppc instance. Recent kernel's size makes swap feature very important on low-memory platforms, those are actually non-operable without it. Signed-off-by: Yuri Tikhonov <yur@emcraft.com> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include/asm-powerpc')
-rw-r--r--include/asm-powerpc/pgtable-ppc32.h8
1 files changed, 0 insertions, 8 deletions
diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h
index d1332bbcbd9..2c79f550272 100644
--- a/include/asm-powerpc/pgtable-ppc32.h
+++ b/include/asm-powerpc/pgtable-ppc32.h
@@ -339,14 +339,6 @@ extern int icache_44x_need_flush;
#define _PMD_PAGE_MASK 0x000c
#define _PMD_PAGE_8M 0x000c
-/*
- * The 8xx TLB miss handler allegedly sets _PAGE_ACCESSED in the PTE
- * for an address even if _PAGE_PRESENT is not set, as a performance
- * optimization. This is a bug if you ever want to use swap unless
- * _PAGE_ACCESSED is 2, which it isn't, or unless you have 8xx-specific
- * definitions for __swp_entry etc. below, which would be gross.
- * -- paulus
- */
#define _PTE_NONE_MASK _PAGE_ACCESSED
#else /* CONFIG_6xx */