arm/mm/tlb-v7.S

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  *  linux/arch/arm/mm/tlb-v7.S
5  *  Copyright (C) 1997-2002 Russell King
8  *  ARM architecture version 6 TLB handling functions.
9  *  These assume a split I/D TLB.
15 #include <asm/asm-offsets.h>
18 #include "proc-macros.S"
20 .arch armv7-a
25  *	Invalidate a range of TLB entries in the specified address space.
27  *	- start - start address (may not be aligned)
28  *	- end   - end address (exclusive, may not be aligned)
29  *	- vma   - vm_area_struct describing address range
32  *	- the "Invalidate single entry" instruction will invalidate
33  *	  both the I and the D TLBs on Harvard-style TLBs
36 	vma_vm_mm r3, r2			@ get vma->vm_mm
37 	mmid	r3, r3				@ get vm_mm->context.id
50 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 3)	@ TLB invalidate U MVA all ASID (shareable)
52 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 1)	@ TLB invalidate U MVA (shareable)
54 	ALT_UP(mcr	p15, 0, r0, c8, c7, 1)	@ TLB invalidate U MVA
66  *	Invalidate a range of kernel TLB entries
68  *	- start - start address (may not be aligned)
69  *	- end   - end address (exclusive, may not be aligned)
79 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 3)	@ TLB invalidate U MVA all ASID (shareable)
81 	ALT_SMP(mcr	p15, 0, r0, c8, c3, 1)	@ TLB invalidate U MVA (shareable)
83 	ALT_UP(mcr	p15, 0, r0, c8, c7, 1)	@ TLB invalidate U MVA