2 * Based on arch/arm/include/asm/proc-fns.h
4 * Copyright (C) 1997-1999 Russell King
5 * Copyright (C) 2000 Deep Blue Solutions Ltd
6 * Copyright (C) 2012 ARM Ltd.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 #ifndef __ASM_PROCFNS_H
21 #define __ASM_PROCFNS_H
29 struct cpu_suspend_ctx
;
31 extern void cpu_cache_off(void);
32 extern void cpu_do_idle(void);
33 extern void cpu_do_switch_mm(unsigned long pgd_phys
, struct mm_struct
*mm
);
34 extern void cpu_reset(unsigned long addr
) __attribute__((noreturn
));
35 extern void cpu_do_suspend(struct cpu_suspend_ctx
*ptr
);
36 extern u64
cpu_do_resume(phys_addr_t ptr
, u64 idmap_ttbr
);
38 #include <asm/memory.h>
40 #define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
42 #define cpu_get_pgd() \
45 asm("mrs %0, ttbr0_el1\n" \
47 pg &= ~0xffff000000003ffful; \
48 (pgd_t *)phys_to_virt(pg); \
51 #endif /* __ASSEMBLY__ */
52 #endif /* __KERNEL__ */
53 #endif /* __ASM_PROCFNS_H */