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powerpc/mm: Add 64TB support

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Increase max addressable range to 64TB. This is not tested on
real hardware yet.

Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Aneesh Kumar K.V 2012-09-10 02:52:55 +00:00 • committed by Benjamin Herrenschmidt
parent 735cafc32b
commit 048ee0993e
7 changed files with 54 additions and 16 deletions
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4
arch/powerpc/kernel/exceptions-64s.S
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@ -1083,7 +1083,9 @@ _GLOBAL(do_stab_bolted)
rldimi r10,r11,7,52 /* r10 = first ste of the group */
/* Calculate VSID */
/* This is a kernel address, so protovsid = ESID */
/* This is a kernel address, so protovsid = ESID | 1 << 37 */
li r9,0x1
rldimi r11,r9,(CONTEXT_BITS + USER_ESID_BITS),0
ASM_VSID_SCRAMBLE(r11, r9, 256M)
rldic r9,r11,12,16 /* r9 = vsid << 12 */