| #ifndef _ASM_FIXMAP_H |
| #define _ASM_FIXMAP_H |
| |
| #define FIXADDR_START 0xffc00000UL |
| #define FIXADDR_END 0xfff00000UL |
| #define FIXADDR_TOP (FIXADDR_END - PAGE_SIZE) |
| |
| #include <asm/kmap_types.h> |
| #include <asm/pgtable.h> |
| |
| enum fixed_addresses { |
| FIX_EARLYCON_MEM_BASE, |
| __end_of_permanent_fixed_addresses, |
| |
| FIX_KMAP_BEGIN = __end_of_permanent_fixed_addresses, |
| FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS) - 1, |
| |
| /* Support writing RO kernel text via kprobes, jump labels, etc. */ |
| FIX_TEXT_POKE0, |
| FIX_TEXT_POKE1, |
| |
| __end_of_fixed_addresses |
| }; |
| |
| #define FIXMAP_PAGE_COMMON (L_PTE_YOUNG | L_PTE_PRESENT | L_PTE_XN | L_PTE_DIRTY) |
| |
| #define FIXMAP_PAGE_NORMAL (FIXMAP_PAGE_COMMON | L_PTE_MT_WRITEBACK) |
| |
| /* Used by set_fixmap_(io|nocache), both meant for mapping a device */ |
| #define FIXMAP_PAGE_IO (FIXMAP_PAGE_COMMON | L_PTE_MT_DEV_SHARED | L_PTE_SHARED) |
| #define FIXMAP_PAGE_NOCACHE FIXMAP_PAGE_IO |
| |
| void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot); |
| void __init early_fixmap_init(void); |
| |
| #include <asm-generic/fixmap.h> |
| |
| #endif |
