projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 9cce7a43 CM |
1 | /* |
| 2 | * Based on arch/arm/include/asm/proc-fns.h | |
| 3 | * | |
| 4 | * Copyright (C) 1997-1999 Russell King | |
| 5 | * Copyright (C) 2000 Deep Blue Solutions Ltd | |
| 6 | * Copyright (C) 2012 ARM Ltd. | |
| 7 | * | |
| 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. | |
| 11 | * | |
| 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. | |
| 16 | * | |
| 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/>. | |
| 19 | */ | |
| 20 | #ifndef __ASM_PROCFNS_H | |
| 21 | #define __ASM_PROCFNS_H | |
| 22 | ||
| 23 | #ifdef __KERNEL__ | |
| 24 | #ifndef __ASSEMBLY__ | |
| 25 | ||
| 26 | #include <asm/page.h> | |
| 27 | ||
| 28 | struct mm_struct; | |
| 6732bc65 | 29 | struct cpu_suspend_ctx; |
| 9cce7a43 CM |
30 | |
| 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)); | |
| 5e051531 AC |
35 | void cpu_soft_restart(phys_addr_t cpu_reset, |
| 36 | unsigned long addr) __attribute__((noreturn)); | |
| 6732bc65 LP |
37 | extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr); |
| 38 | extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr); | |
| 9cce7a43 CM |
39 | |
| 40 | #include <asm/memory.h> | |
| 41 | ||
| 130c93fd WD |
42 | #define cpu_switch_mm(pgd,mm) \ |
| 43 | do { \ | |
| 44 | BUG_ON(pgd == swapper_pg_dir); \ | |
| 45 | cpu_do_switch_mm(virt_to_phys(pgd),mm); \ | |
| 46 | } while (0) | |
| 9cce7a43 CM |
47 | |
| 48 | #define cpu_get_pgd() \ | |
| 49 | ({ \ | |
| 50 | unsigned long pg; \ | |
| 51 | asm("mrs %0, ttbr0_el1\n" \ | |
| 52 | : "=r" (pg)); \ | |
| 53 | pg &= ~0xffff000000003ffful; \ | |
| 54 | (pgd_t *)phys_to_virt(pg); \ | |
| 55 | }) | |
| 56 | ||
| 57 | #endif /* __ASSEMBLY__ */ | |
| 58 | #endif /* __KERNEL__ */ | |
| 59 | #endif /* __ASM_PROCFNS_H */ |