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#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 pgd_populate(MM, PGD, PMD) pgd_set(PGD, 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 */
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