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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-01-25 12:34:20 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-22 00:10:16 +1100 |
| commit | 78ca1108b10927b3d068c8da91352b0f4cd01fc5 (patch) | |
| tree | 06e9414cb146b251eead7a86677eb2f251651ade /arch/powerpc/lib/test_emulate_step_exec_instr.S | |
| parent | powerpc/603: don't handle PAGE_ACCESSED in TLB miss handlers. (diff) | |
| download | linux-dev-78ca1108b10927b3d068c8da91352b0f4cd01fc5.tar.xz linux-dev-78ca1108b10927b3d068c8da91352b0f4cd01fc5.zip | |
powerpc/book3s32: Reorder _PAGE_XXX flags to simplify TLB handling
For pages without _PAGE_USER, PP field is 00
For pages with _PAGE_USER, PP field is 10 for RW and 11 for RO.
This patch sets _PAGE_USER to 0x002 and _PAGE_RW to 0x001
is order to simplify TLB handling by reducing amount of shifts.
The location of _PAGE_PRESENT and _PAGE_HASHPTE doesn't matter
as they are only SW related flags.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib/test_emulate_step_exec_instr.S')
0 files changed, 0 insertions, 0 deletions