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[POWERPC] Fix special PTE code for secondary hash bucket 

The code for mapping special 4k pages on kernels using a 64kB base
page size was missing the code for doing the RPN (real page number)
manipulation when inserting the hardware PTE in the secondary hash
bucket.  It needs the same code as has already been added to the
code that inserts the HPTE in the primary hash bucket.  This adds it.

Spotted by Ben Herrenschmidt.

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Paul Mackerras 2007-08-03 19:16:11 +10:00
parent c0f7c6cb5d
commit 430404ed9c
1 changed files with 4 additions and 2 deletions
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6
arch/powerpc/mm/hash_low_64.S
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@ -472,10 +472,12 @@ _GLOBAL(htab_call_hpte_insert1)
/* Now try secondary slot */
/* real page number in r5, PTE RPN value + index */
rldicl r5,r31,64-PTE_RPN_SHIFT,PTE_RPN_SHIFT
andis. r0,r31,_PAGE_4K_PFN@h
srdi r5,r31,PTE_RPN_SHIFT
bne- 3f
sldi r5,r5,PAGE_SHIFT-HW_PAGE_SHIFT
add r5,r5,r25
sldi r5,r5,HW_PAGE_SHIFT
3: sldi r5,r5,HW_PAGE_SHIFT
/* Calculate secondary group hash */
andc r0,r27,r28