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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2018-10-09 13:52:12 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-10-14 18:04:09 +1100 |
| commit | a0da4bc166f21d88400ec91e01b815054561804e (patch) | |
| tree | d51c133ef5b51cf601412bcbf7bde36833d84ee6 /arch/powerpc/include/asm/nohash/64/pgtable.h | |
| parent | powerpc/nohash/64: do not include pte-common.h (diff) | |
| download | linux-dev-a0da4bc166f21d88400ec91e01b815054561804e.tar.xz linux-dev-a0da4bc166f21d88400ec91e01b815054561804e.zip | |
powerpc/mm: Allow platforms to redefine some helpers
The 40xx defines _PAGE_HWWRITE while others don't.
The 8xx defines _PAGE_RO instead of _PAGE_RW.
The 8xx defines _PAGE_PRIVILEGED instead of _PAGE_USER.
The 8xx defines _PAGE_HUGE and _PAGE_NA while others don't.
Lets those platforms redefine pte_write(), pte_wrprotect() and
pte_mkwrite() and get _PAGE_RO and _PAGE_HWWRITE off the common
helpers.
Lets the 8xx redefine pte_user(), pte_mkprivileged() and pte_mkuser()
and get rid of _PAGE_PRIVILEGED and _PAGE_USER default values.
Lets the 8xx redefine pte_mkhuge() and get rid of
_PAGE_HUGE default value.
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/nohash/64/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/64/pgtable.h | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h index efd73d94c2fc..dc6bb9da3f23 100644 --- a/arch/powerpc/include/asm/nohash/64/pgtable.h +++ b/arch/powerpc/include/asm/nohash/64/pgtable.h @@ -90,11 +90,7 @@ */ #include <asm/nohash/pte-book3e.h> -#define _PAGE_HWWRITE 0 #define _PAGE_SAO 0 -#define _PAGE_RO 0 -#define _PAGE_NA 0 -#define _PAGE_HUGE 0 #define PTE_RPN_MASK (~((1UL << PTE_RPN_SHIFT) - 1)) |