| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef __ASM_SH_PGALLOC_H |
| 3 | #define __ASM_SH_PGALLOC_H |
| 4 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 5 | #include <asm/page.h> |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 6 | #include <asm-generic/pgalloc.h> |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 7 | |
| 8 | extern pgd_t *pgd_alloc(struct mm_struct *); |
| 9 | extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); |
| 10 | |
| 11 | #if PAGETABLE_LEVELS > 2 |
| 12 | extern void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd); |
| 13 | extern pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address); |
| 14 | extern void pmd_free(struct mm_struct *mm, pmd_t *pmd); |
| 15 | #endif |
| 16 | |
| 17 | static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, |
| 18 | pte_t *pte) |
| 19 | { |
| 20 | set_pmd(pmd, __pmd((unsigned long)pte)); |
| 21 | } |
| 22 | |
| 23 | static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, |
| 24 | pgtable_t pte) |
| 25 | { |
| 26 | set_pmd(pmd, __pmd((unsigned long)page_address(pte))); |
| 27 | } |
| 28 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| 29 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 30 | #define __pte_free_tlb(tlb,pte,addr) \ |
| 31 | do { \ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 32 | pgtable_pte_page_dtor(pte); \ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 33 | tlb_remove_page((tlb), (pte)); \ |
| 34 | } while (0) |
| 35 | |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 36 | #if CONFIG_PGTABLE_LEVELS > 2 |
| 37 | #define __pmd_free_tlb(tlb, pmdp, addr) \ |
| 38 | do { \ |
| 39 | struct page *page = virt_to_page(pmdp); \ |
| 40 | pgtable_pmd_page_dtor(page); \ |
| 41 | tlb_remove_page((tlb), page); \ |
| 42 | } while (0); |
| 43 | #endif |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 44 | |
| 45 | #endif /* __ASM_SH_PGALLOC_H */ |