| Catalin Marinas | 9cce7a4 | 2012-03-05 11:49:28 +0000 | [diff] [blame] | 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; |
| 29 | |
| 30 | extern void cpu_cache_off(void); |
| 31 | extern void cpu_do_idle(void); |
| 32 | extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); |
| 33 | extern void cpu_reset(unsigned long addr) __attribute__((noreturn)); |
| 34 | |
| 35 | #include <asm/memory.h> |
| 36 | |
| 37 | #define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm) |
| 38 | |
| 39 | #define cpu_get_pgd() \ |
| 40 | ({ \ |
| 41 | unsigned long pg; \ |
| 42 | asm("mrs %0, ttbr0_el1\n" \ |
| 43 | : "=r" (pg)); \ |
| 44 | pg &= ~0xffff000000003ffful; \ |
| 45 | (pgd_t *)phys_to_virt(pg); \ |
| 46 | }) |
| 47 | |
| 48 | #endif /* __ASSEMBLY__ */ |
| 49 | #endif /* __KERNEL__ */ |
| 50 | #endif /* __ASM_PROCFNS_H */ |