diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-08-16 08:41:41 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-08-20 14:22:14 +0300 |
| commit | 4c1616ef036ffaaea95a29d7b6abf9d3e8eb9d92 (patch) | |
| tree | 10415f5ec7202569616b2c663913d930982fa34f /arch/powerpc | |
| parent | d9642117914c9d3f800b3bacc19d7e388b04edb4 (diff) | |
| download | linux-4c1616ef036ffaaea95a29d7b6abf9d3e8eb9d92.tar.xz | |
powerpc/mm: move FSL_BOOK3 version of update_mmu_cache()
Move FSL_BOOK3E version of update_mmu_cache() at the same
place as book3e_hugetlb_preload() as update_mmu_cache() is
the only user of book3e_hugetlb_preload().
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/4d69fdc86df9c74adc71a60331a86f6afb8b5e9e.1565933217.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/hugetlb.h | 3 | ||||
| -rw-r--r-- | arch/powerpc/mm/mem.c | 8 | ||||
| -rw-r--r-- | arch/powerpc/mm/nohash/book3e_hugetlbpage.c | 16 |
3 files changed, 14 insertions, 13 deletions
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index 20a101046cff..bd6504c28c2f 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -31,9 +31,6 @@ static inline int is_hugepage_only_range(struct mm_struct *mm, return 0; } -void book3e_hugetlb_preload(struct vm_area_struct *vma, unsigned long ea, - pte_t pte); - #define __HAVE_ARCH_HUGETLB_FREE_PGD_RANGE void hugetlb_free_pgd_range(struct mmu_gather *tlb, unsigned long addr, unsigned long end, unsigned long floor, diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index ee8225cd2cd2..58d11362eee4 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -458,14 +458,6 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, hash_preload(vma->vm_mm, address, is_exec, trap); } #endif /* CONFIG_PPC_BOOK3S */ -#if defined(CONFIG_PPC_FSL_BOOK3E) && defined(CONFIG_HUGETLB_PAGE) -void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, - pte_t *ptep) -{ - if (is_vm_hugetlb_page(vma)) - book3e_hugetlb_preload(vma, address, *ptep); -} -#endif /* * System memory should not be in /proc/iomem but various tools expect it diff --git a/arch/powerpc/mm/nohash/book3e_hugetlbpage.c b/arch/powerpc/mm/nohash/book3e_hugetlbpage.c index 61915f4d3c7f..8b88be91b622 100644 --- a/arch/powerpc/mm/nohash/book3e_hugetlbpage.c +++ b/arch/powerpc/mm/nohash/book3e_hugetlbpage.c @@ -122,8 +122,8 @@ static inline int book3e_tlb_exists(unsigned long ea, unsigned long pid) return found; } -void book3e_hugetlb_preload(struct vm_area_struct *vma, unsigned long ea, - pte_t pte) +static void +book3e_hugetlb_preload(struct vm_area_struct *vma, unsigned long ea, pte_t pte) { unsigned long mas1, mas2; u64 mas7_3; @@ -183,6 +183,18 @@ void book3e_hugetlb_preload(struct vm_area_struct *vma, unsigned long ea, local_irq_restore(flags); } +/* + * This is called at the end of handling a user page fault, when the + * fault has been handled by updating a PTE in the linux page tables. + * + * This must always be called with the pte lock held. + */ +void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) +{ + if (is_vm_hugetlb_page(vma)) + book3e_hugetlb_preload(vma, address, *ptep); +} + void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr) { struct hstate *hstate = hstate_file(vma->vm_file); |