Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /proc/self/root/usr/src/linux-headers-5.4.0-193/arch/x86/include/asm/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

/* 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 */