diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-04-29 23:25:59 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-05-01 18:33:02 +1000 |
| commit | 31a14fae92b29b7a7fcc65600f072bf448d3b0eb (patch) | |
| tree | 87cec341565d9bfb78490f35eb322c8abf4d46cd /arch/powerpc/include/asm/book3s/64/pgtable.h | |
| parent | 2bfd65e45e877fb5704730244da67c748d28a1b8 (diff) | |
powerpc/mm: Abstraction for vmemmap and map_kernel_page()
For hash we create vmemmap mapping using bolted hash page table entries.
For radix we fill the radix page table. The next patch will add the
radix details for creating vmemmap mappings.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/pgtable.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgtable.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index a22b47844f2f..c1b787dcfbb6 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -722,6 +722,26 @@ extern struct page *pgd_page(pgd_t pgd); void pgtable_cache_add(unsigned shift, void (*ctor)(void *)); void pgtable_cache_init(void); +static inline int map_kernel_page(unsigned long ea, unsigned long pa, + unsigned long flags) +{ + return hash__map_kernel_page(ea, pa, flags); +} + +static inline int __meminit vmemmap_create_mapping(unsigned long start, + unsigned long page_size, + unsigned long phys) +{ + return hash__vmemmap_create_mapping(start, page_size, phys); +} + +#ifdef CONFIG_MEMORY_HOTPLUG +static inline void vmemmap_remove_mapping(unsigned long start, + unsigned long page_size) +{ + return hash__vmemmap_remove_mapping(start, page_size); +} +#endif struct page *realmode_pfn_to_page(unsigned long pfn); #ifdef CONFIG_TRANSPARENT_HUGEPAGE |