powerpc/mm: convert Book3E 64 to pte_fragment
Book3E 64 is the only subarch not using pte_fragment. In order to allow refactorisation, this patch converts it to pte_fragment. Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
parent
447def3b06
commit
737b434d3d
|
@ -228,13 +228,7 @@ static inline void enter_lazy_tlb(struct mm_struct *mm,
|
|||
#endif
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PPC_BOOK3E_64
|
||||
static inline void arch_exit_mmap(struct mm_struct *mm)
|
||||
{
|
||||
}
|
||||
#else
|
||||
extern void arch_exit_mmap(struct mm_struct *mm);
|
||||
#endif
|
||||
|
||||
static inline void arch_unmap(struct mm_struct *mm,
|
||||
struct vm_area_struct *vma,
|
||||
|
|
|
@ -4,11 +4,13 @@
|
|||
|
||||
#define MAX_PHYSMEM_BITS 44
|
||||
|
||||
#include <asm/page.h>
|
||||
|
||||
/* Freescale Book-E software loaded TLB or Book-3e (ISA 2.06+) MMU */
|
||||
#include <asm/nohash/mmu-book3e.h>
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
typedef struct page *pgtable_t;
|
||||
typedef pte_t *pgtable_t;
|
||||
#endif
|
||||
|
||||
#endif /* _ASM_POWERPC_NOHASH_64_MMU_H_ */
|
||||
|
|
|
@ -76,10 +76,10 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
|
|||
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
|
||||
pgtable_t pte_page)
|
||||
{
|
||||
pmd_set(pmd, (unsigned long)page_address(pte_page));
|
||||
pmd_set(pmd, (unsigned long)pte_page);
|
||||
}
|
||||
|
||||
#define pmd_pgtable(pmd) pmd_page(pmd)
|
||||
#define pmd_pgtable(pmd) ((pgtable_t)pmd_page_vaddr(pmd))
|
||||
|
||||
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
|
||||
{
|
||||
|
@ -92,44 +92,35 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
|
|||
kmem_cache_free(PGT_CACHE(PMD_CACHE_INDEX), pmd);
|
||||
}
|
||||
|
||||
pte_t *pte_fragment_alloc(struct mm_struct *mm, int kernel);
|
||||
|
||||
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm)
|
||||
{
|
||||
return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
|
||||
return (pte_t *)pte_fragment_alloc(mm, 1);
|
||||
}
|
||||
|
||||
static inline pgtable_t pte_alloc_one(struct mm_struct *mm)
|
||||
{
|
||||
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 page;
|
||||
return (pgtable_t)pte_fragment_alloc(mm, 0);
|
||||
}
|
||||
|
||||
void pte_frag_destroy(void *pte_frag);
|
||||
void pte_fragment_free(unsigned long *table, int kernel);
|
||||
|
||||
static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
|
||||
{
|
||||
free_page((unsigned long)pte);
|
||||
pte_fragment_free((unsigned long *)pte, 1);
|
||||
}
|
||||
|
||||
static inline void pte_free(struct mm_struct *mm, pgtable_t ptepage)
|
||||
{
|
||||
pgtable_page_dtor(ptepage);
|
||||
__free_page(ptepage);
|
||||
pte_fragment_free((unsigned long *)ptepage, 0);
|
||||
}
|
||||
|
||||
static inline void pgtable_free(void *table, int shift)
|
||||
{
|
||||
if (!shift) {
|
||||
pgtable_page_dtor(virt_to_page(table));
|
||||
free_page((unsigned long)table);
|
||||
pte_fragment_free((unsigned long *)table, 0);
|
||||
} else {
|
||||
BUG_ON(shift > MAX_PGTABLE_INDEX_SIZE);
|
||||
kmem_cache_free(PGT_CACHE(shift), table);
|
||||
|
@ -166,7 +157,7 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table,
|
|||
unsigned long address)
|
||||
{
|
||||
tlb_flush_pgtable(tlb, address);
|
||||
pgtable_free_tlb(tlb, page_address(table), 0);
|
||||
pgtable_free_tlb(tlb, table, 0);
|
||||
}
|
||||
|
||||
#define __pmd_free_tlb(tlb, pmd, addr) \
|
||||
|
|
|
@ -7,12 +7,12 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC)
|
|||
|
||||
obj-y := fault.o mem.o pgtable.o mmap.o \
|
||||
init_$(BITS).o pgtable_$(BITS).o \
|
||||
pgtable-frag.o \
|
||||
init-common.o mmu_context.o drmem.o
|
||||
obj-$(CONFIG_PPC_MMU_NOHASH) += nohash/
|
||||
obj-$(CONFIG_PPC_BOOK3S_32) += book3s32/
|
||||
obj-$(CONFIG_PPC_BOOK3S_64) += book3s64/
|
||||
obj-$(CONFIG_PPC_BOOK3S_64) += pgtable-frag.o
|
||||
obj-$(CONFIG_PPC32) += pgtable-frag.o
|
||||
obj-$(CONFIG_NEED_MULTIPLE_NODES) += numa.o
|
||||
obj-$(CONFIG_PPC_MM_SLICES) += slice.o
|
||||
obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o
|
||||
|
|
|
@ -98,7 +98,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
|
|||
switch_mmu_context(prev, next, tsk);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PPC32
|
||||
#ifndef CONFIG_PPC_BOOK3S_64
|
||||
void arch_exit_mmap(struct mm_struct *mm)
|
||||
{
|
||||
void *frag = pte_frag_get(&mm->context);
|
||||
|
|
Loading…
Reference in New Issue