mirror of https://gitee.com/openkylin/linux.git
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
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/*
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* Based on arch/arm/include/asm/proc-fns.h
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*
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* Copyright (C) 1997-1999 Russell King
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* Copyright (C) 2000 Deep Blue Solutions Ltd
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ASM_PROCFNS_H
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#define __ASM_PROCFNS_H
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#ifdef __KERNEL__
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#ifndef __ASSEMBLY__
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#include <asm/page.h>
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struct mm_struct;
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extern void cpu_cache_off(void);
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extern void cpu_do_idle(void);
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extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
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extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
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#include <asm/memory.h>
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#define cpu_switch_mm(pgd,mm) cpu_do_switch_mm(virt_to_phys(pgd),mm)
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#define cpu_get_pgd() \
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({ \
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unsigned long pg; \
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asm("mrs %0, ttbr0_el1\n" \
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: "=r" (pg)); \
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pg &= ~0xffff000000003ffful; \
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(pgd_t *)phys_to_virt(pg); \
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})
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* __ASM_PROCFNS_H */
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