You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.2 KiB
91 lines
2.2 KiB
#ifndef _PPC64_PGALLOC_H
|
|
#define _PPC64_PGALLOC_H
|
|
|
|
#include <linux/mm.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/cpumask.h>
|
|
#include <linux/percpu.h>
|
|
|
|
extern kmem_cache_t *zero_cache;
|
|
|
|
/*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
static inline pgd_t *
|
|
pgd_alloc(struct mm_struct *mm)
|
|
{
|
|
return kmem_cache_alloc(zero_cache, GFP_KERNEL);
|
|
}
|
|
|
|
static inline void
|
|
pgd_free(pgd_t *pgd)
|
|
{
|
|
kmem_cache_free(zero_cache, pgd);
|
|
}
|
|
|
|
#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
|
|
|
|
static inline pmd_t *
|
|
pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
|
|
{
|
|
return kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
|
|
}
|
|
|
|
static inline void
|
|
pmd_free(pmd_t *pmd)
|
|
{
|
|
kmem_cache_free(zero_cache, pmd);
|
|
}
|
|
|
|
#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, pte)
|
|
#define pmd_populate(mm, pmd, pte_page) \
|
|
pmd_populate_kernel(mm, pmd, page_address(pte_page))
|
|
|
|
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
|
|
{
|
|
return kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
|
|
}
|
|
|
|
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
|
|
{
|
|
pte_t *pte = kmem_cache_alloc(zero_cache, GFP_KERNEL|__GFP_REPEAT);
|
|
if (pte)
|
|
return virt_to_page(pte);
|
|
return NULL;
|
|
}
|
|
|
|
static inline void pte_free_kernel(pte_t *pte)
|
|
{
|
|
kmem_cache_free(zero_cache, pte);
|
|
}
|
|
|
|
static inline void pte_free(struct page *ptepage)
|
|
{
|
|
kmem_cache_free(zero_cache, page_address(ptepage));
|
|
}
|
|
|
|
struct pte_freelist_batch
|
|
{
|
|
struct rcu_head rcu;
|
|
unsigned int index;
|
|
struct page * pages[0];
|
|
};
|
|
|
|
#define PTE_FREELIST_SIZE ((PAGE_SIZE - sizeof(struct pte_freelist_batch)) / \
|
|
sizeof(struct page *))
|
|
|
|
extern void pte_free_now(struct page *ptepage);
|
|
extern void pte_free_submit(struct pte_freelist_batch *batch);
|
|
|
|
DECLARE_PER_CPU(struct pte_freelist_batch *, pte_freelist_cur);
|
|
|
|
void __pte_free_tlb(struct mmu_gather *tlb, struct page *ptepage);
|
|
#define __pmd_free_tlb(tlb, pmd) __pte_free_tlb(tlb, virt_to_page(pmd))
|
|
|
|
#define check_pgt_cache() do { } while (0)
|
|
|
|
#endif /* _PPC64_PGALLOC_H */
|
|
|