forked from mirrors/linux
7655abb953
In preparation for mapping kernelspace and userspace with different ASIDs, move the ASID to TTBR1 and update switch_mm to context-switch TTBR0 via an invalid mapping (the zero page). Reviewed-by: Mark Rutland <mark.rutland@arm.com> Tested-by: Laura Abbott <labbott@redhat.com> Tested-by: Shanker Donthineni <shankerd@codeaurora.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/*
|
|
* Based on arch/arm/include/asm/proc-fns.h
|
|
*
|
|
* Copyright (C) 1997-1999 Russell King
|
|
* Copyright (C) 2000 Deep Blue Solutions Ltd
|
|
* Copyright (C) 2012 ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#ifndef __ASM_PROCFNS_H
|
|
#define __ASM_PROCFNS_H
|
|
|
|
#ifdef __KERNEL__
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <asm/page.h>
|
|
|
|
struct mm_struct;
|
|
struct cpu_suspend_ctx;
|
|
|
|
extern void cpu_do_idle(void);
|
|
extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
|
|
extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr);
|
|
extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr);
|
|
|
|
#include <asm/memory.h>
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __KERNEL__ */
|
|
#endif /* __ASM_PROCFNS_H */
|