diff options
Diffstat (limited to 'arch/x86/include/asm/e820.h')
| -rw-r--r-- | arch/x86/include/asm/e820.h | 23 |
1 files changed, 16 insertions, 7 deletions
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h index 40b4e614fe7..761249e396f 100644 --- a/arch/x86/include/asm/e820.h +++ b/arch/x86/include/asm/e820.h @@ -61,6 +61,12 @@ struct e820map { struct e820entry map[E820_X_MAX]; }; +#define ISA_START_ADDRESS 0xa0000 +#define ISA_END_ADDRESS 0x100000 + +#define BIOS_BEGIN 0x000a0000 +#define BIOS_END 0x00100000 + #ifdef __KERNEL__ /* see comment in arch/x86/kernel/e820.c */ extern struct e820map e820; @@ -126,15 +132,18 @@ extern void e820_reserve_resources(void); extern void e820_reserve_resources_late(void); extern void setup_memory_map(void); extern char *default_machine_specific_memory_setup(void); -#endif /* __KERNEL__ */ -#endif /* __ASSEMBLY__ */ -#define ISA_START_ADDRESS 0xa0000 -#define ISA_END_ADDRESS 0x100000 -#define is_ISA_range(s, e) ((s) >= ISA_START_ADDRESS && (e) < ISA_END_ADDRESS) +/* + * Returns true iff the specified range [s,e) is completely contained inside + * the ISA region. + */ +static inline bool is_ISA_range(u64 s, u64 e) +{ + return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS; +} -#define BIOS_BEGIN 0x000a0000 -#define BIOS_END 0x00100000 +#endif /* __KERNEL__ */ +#endif /* __ASSEMBLY__ */ #ifdef __KERNEL__ #include <linux/ioport.h> |