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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
This commit is contained in:
Christophe Leroy 2019-08-16 05:41:41 +00:00 committed by Michael Ellerman
parent d964211791
commit 4c1616ef03
3 changed files with 14 additions and 13 deletions
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3
arch/powerpc/include/asm/hugetlb.h
View File

@ -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,

8
arch/powerpc/mm/mem.c
View File

@ -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

16
arch/powerpc/mm/nohash/book3e_hugetlbpage.c
View File

@ -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);