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[POWERPC] 85xx: Only invalidate TLB0 and TLB1

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All current 85xx/e500 implementations only have two TLB
arrays.  We are wasting cycles by invalidating TLB2 and TLB3.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala
2008-01-28 13:23:42 -06:00
parent 3b29daded6
commit a6f7174596
1 changed files with 0 additions and 10 deletions
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10
arch/powerpc/kernel/misc_32.S
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@@ -275,12 +275,6 @@ _GLOBAL(_tlbia)
/* Invalidate all entries in TLB1 */ /* Invalidate all entries in TLB1 */
li r3, 0x0c li r3, 0x0c
tlbivax 0,3 tlbivax 0,3
/* Invalidate all entries in TLB2 */
li r3, 0x14
tlbivax 0,3
/* Invalidate all entries in TLB3 */
li r3, 0x1c
tlbivax 0,3
msync msync
#ifdef CONFIG_SMP #ifdef CONFIG_SMP
tlbsync tlbsync
@@ -375,12 +369,8 @@ _GLOBAL(_tlbie)
#elif defined(CONFIG_FSL_BOOKE) #elif defined(CONFIG_FSL_BOOKE)
rlwinm r4, r3, 0, 0, 19 rlwinm r4, r3, 0, 0, 19
ori r5, r4, 0x08 /* TLBSEL = 1 */ ori r5, r4, 0x08 /* TLBSEL = 1 */
ori r6, r4, 0x10 /* TLBSEL = 2 */
ori r7, r4, 0x18 /* TLBSEL = 3 */
tlbivax 0, r4 tlbivax 0, r4
tlbivax 0, r5 tlbivax 0, r5
tlbivax 0, r6
tlbivax 0, r7
msync msync
#if defined(CONFIG_SMP) #if defined(CONFIG_SMP)
tlbsync tlbsync