David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 1 | #ifndef _ASM_POWERPC_PGALLOC_32_H |
| 2 | #define _ASM_POWERPC_PGALLOC_32_H |
| 3 | |
| 4 | #include <linux/threads.h> |
| 5 | |
Kumar Gala | 0186f47 | 2008-11-19 12:50:04 +0000 | [diff] [blame] | 6 | #define PTE_NONCACHE_NUM 0 /* dummy for now to share code w/ppc64 */ |
| 7 | |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 8 | extern void __bad_pte(pmd_t *pmd); |
| 9 | |
| 10 | extern pgd_t *pgd_alloc(struct mm_struct *mm); |
Benjamin Herrenschmidt | 5e54197 | 2008-02-04 22:29:14 -0800 | [diff] [blame] | 11 | extern void pgd_free(struct mm_struct *mm, pgd_t *pgd); |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 12 | |
| 13 | /* |
| 14 | * We don't have any real pmd's, and this code never triggers because |
| 15 | * the pgd will always be present.. |
| 16 | */ |
David Gibson | d1953c8 | 2007-05-08 12:46:49 +1000 | [diff] [blame] | 17 | /* #define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) */ |
Benjamin Herrenschmidt | 5e54197 | 2008-02-04 22:29:14 -0800 | [diff] [blame] | 18 | #define pmd_free(mm, x) do { } while (0) |
Benjamin Herrenschmidt | 9e1b32c | 2009-07-22 15:44:28 +1000 | [diff] [blame] | 19 | #define __pmd_free_tlb(tlb,x,a) do { } while (0) |
David Gibson | d1953c8 | 2007-05-08 12:46:49 +1000 | [diff] [blame] | 20 | /* #define pgd_populate(mm, pmd, pte) BUG() */ |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 21 | |
| 22 | #ifndef CONFIG_BOOKE |
| 23 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| 24 | (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT) |
| 25 | #define pmd_populate(mm, pmd, pte) \ |
| 26 | (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT) |
Martin Schwidefsky | 2f569af | 2008-02-08 04:22:04 -0800 | [diff] [blame] | 27 | #define pmd_pgtable(pmd) pmd_page(pmd) |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 28 | #else |
| 29 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| 30 | (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT) |
| 31 | #define pmd_populate(mm, pmd, pte) \ |
| 32 | (pmd_val(*(pmd)) = (unsigned long)lowmem_page_address(pte) | _PMD_PRESENT) |
Martin Schwidefsky | 2f569af | 2008-02-08 04:22:04 -0800 | [diff] [blame] | 33 | #define pmd_pgtable(pmd) pmd_page(pmd) |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 34 | #endif |
| 35 | |
| 36 | extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); |
Martin Schwidefsky | 2f569af | 2008-02-08 04:22:04 -0800 | [diff] [blame] | 37 | extern pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr); |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 38 | |
Kumar Gala | 0186f47 | 2008-11-19 12:50:04 +0000 | [diff] [blame] | 39 | static inline void pgtable_free(pgtable_free_t pgf) |
| 40 | { |
| 41 | void *p = (void *)(pgf.val & ~PGF_CACHENUM_MASK); |
| 42 | |
| 43 | free_page((unsigned long)p); |
| 44 | } |
David Gibson | f88df14 | 2007-04-30 16:30:56 +1000 | [diff] [blame] | 45 | |
| 46 | #define check_pgt_cache() do { } while (0) |
| 47 | |
| 48 | #endif /* _ASM_POWERPC_PGALLOC_32_H */ |