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powerpc: Fix TLB invalidation on boot on 32-bit 

The intent of "flush_tlbs" is to invalidate all TLB entries by doing a
TLB invalidate instruction for all pages in the address range 0 to
0x00400000.  A loop counter is set up at the high value and
decremented by page size.  However, the loop is only done once as the
sense of the conditional branch at the loop end does not match the
setup/decrement.  This fixes it to do the whole range by correcting
the branch condition.

Signed-off-by: Rocky Craig <rocky.craig@hp.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Rocky Craig 2008-08-14 23:11:54 +10:00 committed by Paul Mackerras
parent 3fadc52b2c
commit 9acd57ca74
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/kernel/head_32.S
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@ -1155,7 +1155,7 @@ flush_tlbs:
lis r10, 0x40
1: addic. r10, r10, -0x1000
tlbie r10
blt 1b
bgt 1b
sync
blr