[mirror_ubuntu-artful-kernel.git] / arch / x86 / include / asm / olpc_ofw.h

#ifndef _ASM_X86_OLPC_OFW_H
#define _ASM_X86_OLPC_OFW_H

/* index into the page table containing the entry OFW occupies */
#define OLPC_OFW_PDE_NR 1022

#define OLPC_OFW_SIG 0x2057464F	/* aka "OFW " */

#ifdef CONFIG_OLPC

extern bool olpc_ofw_is_installed(void);

/* run an OFW command by calling into the firmware */
#define olpc_ofw(name, args, res) \
	__olpc_ofw((name), ARRAY_SIZE(args), args, ARRAY_SIZE(res), res)

extern int __olpc_ofw(const char *name, int nr_args, const void **args, int nr_res,
		void **res);

/* determine whether OFW is available and lives in the proper memory */
extern void olpc_ofw_detect(void);

/* install OFW's pde permanently into the kernel's pgtable */
extern void setup_olpc_ofw_pgd(void);

/* check if OFW was detected during boot */
extern bool olpc_ofw_present(void);

extern void olpc_dt_build_devicetree(void);

#else /* !CONFIG_OLPC */
static inline void olpc_ofw_detect(void) { }
static inline void setup_olpc_ofw_pgd(void) { }
static inline void olpc_dt_build_devicetree(void) { }
#endif /* !CONFIG_OLPC */

#endif /* _ASM_X86_OLPC_OFW_H */
Commit	Line	Data
fd699c76 AS	1	#ifndef _ASM_X86_OLPC_OFW_H
	2	#define _ASM_X86_OLPC_OFW_H
	3
	4	/* index into the page table containing the entry OFW occupies */
	5	#define OLPC_OFW_PDE_NR 1022
	6
	7	#define OLPC_OFW_SIG 0x2057464F /* aka "OFW " */
	8
939d578e TG	9	#ifdef CONFIG_OLPC
939d578e TG	10
c10d1e26 AS	11	extern bool olpc_ofw_is_installed(void);
c10d1e26 AS	12
fd699c76 AS	13	/* run an OFW command by calling into the firmware */
	14	#define olpc_ofw(name, args, res) \
	15	__olpc_ofw((name), ARRAY_SIZE(args), args, ARRAY_SIZE(res), res)
	16
54e5bc02	17	extern int __olpc_ofw(const char name, int nr_args, const void *args, int nr_res,
fd699c76 AS	18	void **res);
	19
	20	/* determine whether OFW is available and lives in the proper memory */
	21	extern void olpc_ofw_detect(void);
	22
	23	/* install OFW's pde permanently into the kernel's pgtable */
	24	extern void setup_olpc_ofw_pgd(void);
	25
3e3c4860 DD	26	/* check if OFW was detected during boot */
	27	extern bool olpc_ofw_present(void);
	28
45bb1674 DD	29	extern void olpc_dt_build_devicetree(void);
45bb1674 DD	30
939d578e TG	31	#else /* !CONFIG_OLPC */
	32	static inline void olpc_ofw_detect(void) { }
	33	static inline void setup_olpc_ofw_pgd(void) { }
c10d1e26	34	static inline void olpc_dt_build_devicetree(void) { }
45bb1674	35	#endif /* !CONFIG_OLPC */
c10d1e26	36
fd699c76	37	#endif /* _ASM_X86_OLPC_OFW_H */