diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-11-29 17:06:59 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-04 11:45:01 +0300 |
| commit | a74791dd98332435550bdc57761969ba72b74769 (patch) | |
| tree | 9e3f267a16e0c2eaae77262098159f58d1d41c3c /arch/powerpc/include/asm/pgtable.h | |
| parent | d09780f3a8d48fd49136d7bae8f0ae30de7f261a (diff) | |
| download | linux-a74791dd98332435550bdc57761969ba72b74769.tar.xz | |
powerpc/mm: add helpers to get/set mm.context->pte_frag
In order to handle pte_fragment functions with single fragment
without adding pte_frag in all mm_context_t, this patch creates
two helpers which do nothing on platforms using a single fragment.
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/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/pgtable.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index 9679b7519a35..314a2890a972 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -110,6 +110,31 @@ void mark_initmem_nx(void); static inline void mark_initmem_nx(void) { } #endif +/* + * When used, PTE_FRAG_NR is defined in subarch pgtable.h + * so we are sure it is included when arriving here. + */ +#ifdef PTE_FRAG_NR +static inline void *pte_frag_get(mm_context_t *ctx) +{ + return ctx->pte_frag; +} + +static inline void pte_frag_set(mm_context_t *ctx, void *p) +{ + ctx->pte_frag = p; +} +#else +static inline void *pte_frag_get(mm_context_t *ctx) +{ + return NULL; +} + +static inline void pte_frag_set(mm_context_t *ctx, void *p) +{ +} +#endif + #endif /* __ASSEMBLY__ */ #endif /* _ASM_POWERPC_PGTABLE_H */ |