From: Paul Mackerras Date: Fri, 3 Aug 2007 09:16:11 +0000 (+1000) Subject: [POWERPC] Fix special PTE code for secondary hash bucket X-Git-Tag: v2.6.23-rc2~1^2~7 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=430404ed9c2f202ca9d3c8072699b2b0279e4dfe;p=~emulex%2Finfiniband.git [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 --- diff --git a/arch/powerpc/mm/hash_low_64.S b/arch/powerpc/mm/hash_low_64.S index 4762ff7c14d..35eabfb5072 100644 --- a/arch/powerpc/mm/hash_low_64.S +++ b/arch/powerpc/mm/hash_low_64.S @@ -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