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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2012-09-10 02:52:55 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2012-09-17 16:31:51 +1000 |
| commit | 048ee0993ec8360abb0b51bdf8f8721e9ed62ec4 (patch) | |
| tree | a26ea6b76ae86d366fcff10dd54a4ecbbd29c8fb /arch/powerpc/mm/slb_low.S | |
| parent | 735cafc32b661f08a266a8d754e6cfbd82c11704 (diff) | |
| download | linux-048ee0993ec8360abb0b51bdf8f8721e9ed62ec4.tar.gz linux-048ee0993ec8360abb0b51bdf8f8721e9ed62ec4.tar.bz2 linux-048ee0993ec8360abb0b51bdf8f8721e9ed62ec4.zip | |
powerpc/mm: Add 64TB support
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>
Diffstat (limited to 'arch/powerpc/mm/slb_low.S')
| -rw-r--r-- | arch/powerpc/mm/slb_low.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S index f6a262555ef2..1a16ca227757 100644 --- a/arch/powerpc/mm/slb_low.S +++ b/arch/powerpc/mm/slb_low.S @@ -56,6 +56,12 @@ _GLOBAL(slb_allocate_realmode) */ _GLOBAL(slb_miss_kernel_load_linear) li r11,0 + li r9,0x1 + /* + * for 1T we shift 12 bits more. slb_finish_load_1T will do + * the necessary adjustment + */ + rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0 BEGIN_FTR_SECTION b slb_finish_load END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) @@ -85,6 +91,12 @@ _GLOBAL(slb_miss_kernel_load_vmemmap) _GLOBAL(slb_miss_kernel_load_io) li r11,0 6: + li r9,0x1 + /* + * for 1T we shift 12 bits more. slb_finish_load_1T will do + * the necessary adjustment + */ + rldimi r10,r9,(CONTEXT_BITS + USER_ESID_BITS),0 BEGIN_FTR_SECTION b slb_finish_load END_MMU_FTR_SECTION_IFCLR(MMU_FTR_1T_SEGMENT) |