diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/sparc/include/asm/pgalloc_32.h | |
Diffstat (limited to 'arch/sparc/include/asm/pgalloc_32.h')
| -rw-r--r-- | arch/sparc/include/asm/pgalloc_32.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h new file mode 100644 index 00000000..9b1c36de --- /dev/null +++ b/arch/sparc/include/asm/pgalloc_32.h @@ -0,0 +1,77 @@ +#ifndef _SPARC_PGALLOC_H +#define _SPARC_PGALLOC_H + +#include <linux/kernel.h> +#include <linux/sched.h> + +#include <asm/pgtsrmmu.h> +#include <asm/pgtable.h> +#include <asm/vaddrs.h> +#include <asm/page.h> + +struct page; + +void *srmmu_get_nocache(int size, int align); +void srmmu_free_nocache(void *addr, int size); + +#define check_pgt_cache() do { } while (0) + +pgd_t *get_pgd_fast(void); +static inline void free_pgd_fast(pgd_t *pgd) +{ + srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE); +} + +#define pgd_free(mm, pgd) free_pgd_fast(pgd) +#define pgd_alloc(mm) get_pgd_fast() + +static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp) +{ + unsigned long pa = __nocache_pa((unsigned long)pmdp); + + set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4))); +} + +#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) + +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, + unsigned long address) +{ + return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, + SRMMU_PMD_TABLE_SIZE); +} + +static inline void free_pmd_fast(pmd_t * pmd) +{ + srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE); +} + +#define pmd_free(mm, pmd) free_pmd_fast(pmd) +#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd) + +void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep); +#define pmd_pgtable(pmd) pmd_page(pmd) + +void pmd_set(pmd_t *pmdp, pte_t *ptep); +#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) + +pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address); + +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + unsigned long address) +{ + return srmmu_get_nocache(PTE_SIZE, PTE_SIZE); +} + + +static inline void free_pte_fast(pte_t *pte) +{ + srmmu_free_nocache(pte, PTE_SIZE); +} + +#define pte_free_kernel(mm, pte) free_pte_fast(pte) + +void pte_free(struct mm_struct * mm, pgtable_t pte); +#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte) + +#endif /* _SPARC_PGALLOC_H */ |
