121 lines
2.8 KiB
C
121 lines
2.8 KiB
C
#ifndef _SPARC64_PGALLOC_H
|
|
#define _SPARC64_PGALLOC_H
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include <asm/spitfire.h>
|
|
#include <asm/cpudata.h>
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/page.h>
|
|
|
|
/* Page table allocation/freeing. */
|
|
|
|
extern struct kmem_cache *pgtable_cache;
|
|
|
|
static inline void __pgd_populate(pgd_t *pgd, pud_t *pud)
|
|
{
|
|
pgd_set(pgd, pud);
|
|
}
|
|
|
|
#define pgd_populate(MM, PGD, PUD) __pgd_populate(PGD, PUD)
|
|
|
|
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
|
|
{
|
|
return kmem_cache_alloc(pgtable_cache, GFP_KERNEL);
|
|
}
|
|
|
|
static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
|
|
{
|
|
kmem_cache_free(pgtable_cache, pgd);
|
|
}
|
|
|
|
static inline void __pud_populate(pud_t *pud, pmd_t *pmd)
|
|
{
|
|
pud_set(pud, pmd);
|
|
}
|
|
|
|
#define pud_populate(MM, PUD, PMD) __pud_populate(PUD, PMD)
|
|
|
|
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
|
|
{
|
|
return kmem_cache_alloc(pgtable_cache,
|
|
GFP_KERNEL|__GFP_REPEAT);
|
|
}
|
|
|
|
static inline void pud_free(struct mm_struct *mm, pud_t *pud)
|
|
{
|
|
kmem_cache_free(pgtable_cache, pud);
|
|
}
|
|
|
|
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
|
|
{
|
|
return kmem_cache_alloc(pgtable_cache,
|
|
GFP_KERNEL|__GFP_REPEAT);
|
|
}
|
|
|
|
static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
|
|
{
|
|
kmem_cache_free(pgtable_cache, pmd);
|
|
}
|
|
|
|
pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
|
|
unsigned long address);
|
|
pgtable_t pte_alloc_one(struct mm_struct *mm,
|
|
unsigned long address);
|
|
void pte_free_kernel(struct mm_struct *mm, pte_t *pte);
|
|
void pte_free(struct mm_struct *mm, pgtable_t ptepage);
|
|
|
|
#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(MM, PMD, PTE)
|
|
#define pmd_populate(MM, PMD, PTE) pmd_set(MM, PMD, PTE)
|
|
#define pmd_pgtable(PMD) ((pte_t *)__pmd_page(PMD))
|
|
|
|
#define check_pgt_cache() do { } while (0)
|
|
|
|
void pgtable_free(void *table, bool is_page);
|
|
|
|
#ifdef CONFIG_SMP
|
|
|
|
struct mmu_gather;
|
|
void tlb_remove_table(struct mmu_gather *, void *);
|
|
|
|
static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
|
|
{
|
|
unsigned long pgf = (unsigned long)table;
|
|
if (is_page)
|
|
pgf |= 0x1UL;
|
|
tlb_remove_table(tlb, (void *)pgf);
|
|
}
|
|
|
|
static inline void __tlb_remove_table(void *_table)
|
|
{
|
|
void *table = (void *)((unsigned long)_table & ~0x1UL);
|
|
bool is_page = false;
|
|
|
|
if ((unsigned long)_table & 0x1UL)
|
|
is_page = true;
|
|
pgtable_free(table, is_page);
|
|
}
|
|
#else /* CONFIG_SMP */
|
|
static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, bool is_page)
|
|
{
|
|
pgtable_free(table, is_page);
|
|
}
|
|
#endif /* !CONFIG_SMP */
|
|
|
|
static inline void __pte_free_tlb(struct mmu_gather *tlb, pte_t *pte,
|
|
unsigned long address)
|
|
{
|
|
pgtable_free_tlb(tlb, pte, true);
|
|
}
|
|
|
|
#define __pmd_free_tlb(tlb, pmd, addr) \
|
|
pgtable_free_tlb(tlb, pmd, false)
|
|
|
|
#define __pud_free_tlb(tlb, pud, addr) \
|
|
pgtable_free_tlb(tlb, pud, false)
|
|
|
|
#endif /* _SPARC64_PGALLOC_H */
|