관리-도구

편집 파일: olpc_ofw.h

/* SPDX-License-Identifier: GPL-2.0 */ #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 */