| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com) |
| 4 | * Copyright 2003 PathScale, Inc. |
| 5 | * Derived from include/asm-i386/pgalloc.h and include/asm-i386/pgtable.h |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef __UM_PGALLOC_H |
| 9 | #define __UM_PGALLOC_H |
| 10 | |
| 11 | #include <linux/mm.h> |
| 12 | |
| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 13 | #include <asm-generic/pgalloc.h> |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 14 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 15 | #define pmd_populate_kernel(mm, pmd, pte) \ |
| 16 | set_pmd(pmd, __pmd(_PAGE_TABLE + (unsigned long) __pa(pte))) |
| 17 | |
| 18 | #define pmd_populate(mm, pmd, pte) \ |
| 19 | set_pmd(pmd, __pmd(_PAGE_TABLE + \ |
| 20 | ((unsigned long long)page_to_pfn(pte) << \ |
| 21 | (unsigned long long) PAGE_SHIFT))) |
| 22 | #define pmd_pgtable(pmd) pmd_page(pmd) |
| 23 | |
| 24 | /* |
| 25 | * Allocate and free page tables. |
| 26 | */ |
| 27 | extern pgd_t *pgd_alloc(struct mm_struct *); |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 28 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 29 | #define __pte_free_tlb(tlb,pte, address) \ |
| 30 | do { \ |
| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame] | 31 | pgtable_pte_page_dtor(pte); \ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 32 | tlb_remove_page((tlb),(pte)); \ |
| 33 | } while (0) |
| 34 | |
| 35 | #ifdef CONFIG_3_LEVEL_PGTABLES |
| 36 | |
| Olivier Deprez | 157378f | 2022-04-04 15:47:50 +0200 | [diff] [blame^] | 37 | #define __pmd_free_tlb(tlb, pmd, address) \ |
| 38 | do { \ |
| 39 | pgtable_pmd_page_dtor(virt_to_page(pmd)); \ |
| 40 | tlb_remove_page((tlb),virt_to_page(pmd)); \ |
| 41 | } while (0) \ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 42 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 43 | #endif |
| 44 | |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 45 | #endif |
| 46 | |