91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
#ifndef _SPARC_PGALLOC_H
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#define _SPARC_PGALLOC_H
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <asm/pgtsrmmu.h>
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#include <asm/pgtable.h>
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#include <asm/vaddrs.h>
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#include <asm/page.h>
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struct page;
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extern struct pgtable_cache_struct {
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unsigned long *pgd_cache;
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unsigned long *pte_cache;
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unsigned long pgtable_cache_sz;
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unsigned long pgd_cache_sz;
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} pgt_quicklists;
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unsigned long srmmu_get_nocache(int size, int align);
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void srmmu_free_nocache(unsigned long vaddr, int size);
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#define pgd_quicklist (pgt_quicklists.pgd_cache)
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#define pmd_quicklist ((unsigned long *)0)
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#define pte_quicklist (pgt_quicklists.pte_cache)
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#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz)
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#define pgd_cache_size (pgt_quicklists.pgd_cache_sz)
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#define check_pgt_cache() do { } while (0)
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pgd_t *get_pgd_fast(void);
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static inline void free_pgd_fast(pgd_t *pgd)
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{
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srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE);
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}
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#define pgd_free(mm, pgd) free_pgd_fast(pgd)
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#define pgd_alloc(mm) get_pgd_fast()
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static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
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{
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unsigned long pa = __nocache_pa((unsigned long)pmdp);
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set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4)));
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}
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#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
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static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
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unsigned long address)
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{
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return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
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SRMMU_PMD_TABLE_SIZE);
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}
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static inline void free_pmd_fast(pmd_t * pmd)
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{
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srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE);
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}
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#define pmd_free(mm, pmd) free_pmd_fast(pmd)
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#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
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void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep);
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#define pmd_pgtable(pmd) pmd_page(pmd)
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void pmd_set(pmd_t *pmdp, pte_t *ptep);
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#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE)
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pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
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static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
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unsigned long address)
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{
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return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
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}
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static inline void free_pte_fast(pte_t *pte)
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{
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srmmu_free_nocache((unsigned long)pte, PTE_SIZE);
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}
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#define pte_free_kernel(mm, pte) free_pte_fast(pte)
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void pte_free(struct mm_struct * mm, pgtable_t pte);
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#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte)
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#endif /* _SPARC_PGALLOC_H */
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