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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2018-04-16 14:27:20 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-05-15 15:29:11 +0300 |
| commit | 1c7ec8a40aa7796a5a996bd985899c93dacaaa35 (patch) | |
| tree | b5f5e37f8bd3beb644ff28255724a18d22ffcd9c /arch/powerpc/include/asm/book3s/64/pgalloc.h | |
| parent | 702346768c68a95be29f5819e8445a3eff30dac0 (diff) | |
| download | linux-1c7ec8a40aa7796a5a996bd985899c93dacaaa35.tar.xz | |
powerpc/mm/book3s64/4k: Switch 4k pagesize config to use pagetable fragment
4K config use one full page at level 4 of the pagetable. Add support for single
fragment allocation in pagetable fragment code and and use that for 4K config.
This makes both 4k and 64k use the same code path. Later we will switch pmd to
use the page table fragment code. This is done only for 64bit platforms which
is using page table fragment support.
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/pgalloc.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/pgalloc.h | 26 |
1 files changed, 0 insertions, 26 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/pgalloc.h b/arch/powerpc/include/asm/book3s/64/pgalloc.h index 558a159600ad..826171568192 100644 --- a/arch/powerpc/include/asm/book3s/64/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/64/pgalloc.h @@ -173,31 +173,6 @@ static inline pgtable_t pmd_pgtable(pmd_t pmd) return (pgtable_t)pmd_page_vaddr(pmd); } -#ifdef CONFIG_PPC_4K_PAGES -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, - unsigned long address) -{ - return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO); -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *page; - pte_t *pte; - - pte = (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO | __GFP_ACCOUNT); - if (!pte) - return NULL; - page = virt_to_page(pte); - if (!pgtable_page_ctor(page)) { - __free_page(page); - return NULL; - } - return pte; -} -#else /* if CONFIG_PPC_64K_PAGES */ - static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) { @@ -209,7 +184,6 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, { return (pgtable_t)pte_fragment_alloc(mm, address, 0); } -#endif static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { |