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gerrit-public.fairphone.software / kernel / msm-5.4 / f7d924894265794f447ea799dd853400749b5a22 / . / arch / arm / include / asm / fixmap.h
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Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]1#ifndef _ASM_FIXMAP_H
2#define _ASM_FIXMAP_H
3
Liu Huaa05e54c2014-04-18 09:43:32 +0100[diff] [blame]4#define FIXADDR_START 0xffc00000UL
Rob Herring836a2412014-07-02 02:01:15 -0500[diff] [blame]5#define FIXADDR_END 0xfff00000UL
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]6#define FIXADDR_TOP (FIXADDR_END - PAGE_SIZE)
Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]7
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]8#include <asm/kmap_types.h>
Stefan Agnera5f4c562015-08-13 00:01:52 +0100[diff] [blame]9#include <asm/pgtable.h>
Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]10
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]11enum fixed_addresses {
Stefan Agnera5f4c562015-08-13 00:01:52 +0100[diff] [blame]12 FIX_EARLYCON_MEM_BASE,
13 __end_of_permanent_fixed_addresses,
14
15 FIX_KMAP_BEGIN = __end_of_permanent_fixed_addresses,
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]16 FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS) - 1,
Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]17
Rabin Vincentab0615e2014-04-24 23:28:57 +0200[diff] [blame]18 /* Support writing RO kernel text via kprobes, jump labels, etc. */
19 FIX_TEXT_POKE0,
20 FIX_TEXT_POKE1,
21
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]22 __end_of_fixed_addresses
23};
Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]24
Stefan Agnera5f4c562015-08-13 00:01:52 +0100[diff] [blame]25#define FIXMAP_PAGE_COMMON (L_PTE_YOUNG | L_PTE_PRESENT | L_PTE_XN | L_PTE_DIRTY)
26
27#define FIXMAP_PAGE_NORMAL (FIXMAP_PAGE_COMMON | L_PTE_MT_WRITEBACK)
28
29/* Used by set_fixmap_(io|nocache), both meant for mapping a device */
30#define FIXMAP_PAGE_IO (FIXMAP_PAGE_COMMON | L_PTE_MT_DEV_SHARED | L_PTE_SHARED)
31#define FIXMAP_PAGE_NOCACHE FIXMAP_PAGE_IO
32
Kees Cook99b4ac92014-04-04 23:27:49 +0200[diff] [blame]33void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
Stefan Agnera5f4c562015-08-13 00:01:52 +0100[diff] [blame]34void __init early_fixmap_init(void);
Kees Cook99b4ac92014-04-04 23:27:49 +0200[diff] [blame]35
Mark Salterb615bbb2014-08-13 09:04:49 -0700[diff] [blame]36#include <asm-generic/fixmap.h>
Nicolas Pitre5f0fbf92008-09-16 13:05:53 -0400[diff] [blame]37
38#endif