Thomas Gleixner | d2912cb | 2019-06-04 10:11:33 +0200 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2 | /* |
Russell King | 4baa992 | 2008-08-02 10:55:55 +0100 | [diff] [blame] | 3 | * arch/arm/include/asm/map.h |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 4 | * |
| 5 | * Copyright (C) 1999-2000 Russell King |
| 6 | * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * Page table mapping constructs and function prototypes |
| 8 | */ |
Rob Herring | c279443 | 2012-02-29 18:10:58 -0600 | [diff] [blame] | 9 | #ifndef __ASM_MACH_MAP_H |
| 10 | #define __ASM_MACH_MAP_H |
| 11 | |
Russell King | 3603ab2 | 2007-05-05 20:59:27 +0100 | [diff] [blame] | 12 | #include <asm/io.h> |
| 13 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | struct map_desc { |
| 15 | unsigned long virtual; |
Deepak Saxena | 9769c24 | 2005-10-28 15:19:11 +0100 | [diff] [blame] | 16 | unsigned long pfn; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 17 | unsigned long length; |
| 18 | unsigned int type; |
| 19 | }; |
| 20 | |
Russell King | db5b716 | 2008-09-07 12:42:51 +0100 | [diff] [blame] | 21 | /* types 0-3 are defined in asm/io.h */ |
Russell King | 2e2c9de | 2013-10-24 10:26:40 +0100 | [diff] [blame] | 22 | enum { |
| 23 | MT_UNCACHED = 4, |
| 24 | MT_CACHECLEAN, |
| 25 | MT_MINICLEAN, |
| 26 | MT_LOW_VECTORS, |
| 27 | MT_HIGH_VECTORS, |
| 28 | MT_MEMORY_RWX, |
Russell King | ebd4922 | 2013-10-24 08:12:39 +0100 | [diff] [blame] | 29 | MT_MEMORY_RW, |
Russell King | 2e2c9de | 2013-10-24 10:26:40 +0100 | [diff] [blame] | 30 | MT_ROM, |
| 31 | MT_MEMORY_RWX_NONCACHED, |
| 32 | MT_MEMORY_RW_DTCM, |
| 33 | MT_MEMORY_RWX_ITCM, |
| 34 | MT_MEMORY_RW_SO, |
| 35 | MT_MEMORY_DMA_READY, |
| 36 | }; |
Russell King | 0af92be | 2007-05-05 20:28:16 +0100 | [diff] [blame] | 37 | |
Russell King | 092c195 | 2006-06-24 17:34:50 +0100 | [diff] [blame] | 38 | #ifdef CONFIG_MMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | extern void iotable_init(struct map_desc *, int); |
Rob Herring | c279443 | 2012-02-29 18:10:58 -0600 | [diff] [blame] | 40 | extern void vm_reserve_area_early(unsigned long addr, unsigned long size, |
| 41 | void *caller); |
Ard Biesheuvel | c793620 | 2015-04-29 10:04:17 +0200 | [diff] [blame] | 42 | extern void create_mapping_late(struct mm_struct *mm, struct map_desc *md, |
| 43 | bool ng); |
Hiroshi DOYU | 69d3a84 | 2009-01-28 21:32:08 +0200 | [diff] [blame] | 44 | |
Rob Herring | e5c5f2a | 2012-10-22 11:42:54 -0600 | [diff] [blame] | 45 | #ifdef CONFIG_DEBUG_LL |
| 46 | extern void debug_ll_addr(unsigned long *paddr, unsigned long *vaddr); |
| 47 | extern void debug_ll_io_init(void); |
| 48 | #else |
| 49 | static inline void debug_ll_io_init(void) {} |
| 50 | #endif |
| 51 | |
Hiroshi DOYU | 69d3a84 | 2009-01-28 21:32:08 +0200 | [diff] [blame] | 52 | struct mem_type; |
| 53 | extern const struct mem_type *get_mem_type(unsigned int type); |
| 54 | /* |
| 55 | * external interface to remap single page with appropriate type |
| 56 | */ |
| 57 | extern int ioremap_page(unsigned long virt, unsigned long phys, |
| 58 | const struct mem_type *mtype); |
Russell King | 092c195 | 2006-06-24 17:34:50 +0100 | [diff] [blame] | 59 | #else |
| 60 | #define iotable_init(map,num) do { } while (0) |
Rob Herring | c279443 | 2012-02-29 18:10:58 -0600 | [diff] [blame] | 61 | #define vm_reserve_area_early(a,s,c) do { } while (0) |
| 62 | #endif |
| 63 | |
Russell King | 092c195 | 2006-06-24 17:34:50 +0100 | [diff] [blame] | 64 | #endif |