arm/mm/cache-v4wt.S

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  *  linux/arch/arm/mm/cache-v4wt.S
5  *  Copyright (C) 1997-2002 Russell king
16 #include "proc-macros.S"
56  *	Invalidate all cache entries in a particular address
80  *	address space.
82  *	- start - start address (inclusive, page aligned)
83  *	- end	- end address (exclusive, page aligned)
84  *	- flags	- vma_area_struct flags describing address space
104  *	region described by start.  If you have non-snooping
107  *	- start  - virtual start address
108  *	- end	 - virtual end address
120  *	region described by start.  If you have non-snooping
123  *	- start  - virtual start address
124  *	- end	 - virtual end address
127 	bic	r0, r0, #CACHE_DLINESIZE - 1
142  *	- addr	- kernel address
143  *	- size	- region size
155  *	Invalidate (discard) the specified virtual address range.
157  *	are not cache line aligned, those lines must be written
160  *	- start  - virtual start address
161  *	- end	 - virtual end address
164 	bic	r0, r0, #CACHE_DLINESIZE - 1
174  *	Clean and invalidate the specified virtual address range.
176  *	- start  - virtual start address
177  *	- end	 - virtual end address
185  *	- start	- kernel virtual start address
186  *	- size	- size of region
187  *	- dir	- DMA direction
198  *	- start	- kernel virtual start address
199  *	- size	- size of region
200  *	- dir	- DMA direction