Lines Matching +full:cache +full:- +full:size

1 /* SPDX-License-Identifier: GPL-2.0-only */
3  *  linux/arch/arm/mm/cache-v4wt.S
5  *  Copyright (C) 1997-2002 Russell king
7  *  ARMv4 write through cache operations support.
15 #include "proc-macros.S"
18  * The size of one data cache line.
23  * The number of data cache segments.
28  * The number of lines in a cache segment.
33  * This is the size at which it becomes more efficient to
34  * clean the whole cache, rather than using the individual
35  * cache line maintenance instructions.
48 	mcr	p15, 0, r0, c7, c5, 0		@ invalidate I cache
55  *	Invalidate all cache entries in a particular address
63  *	Clean and invalidate the entire cache.
70 	mcrne	p15, 0, ip, c7, c5, 0		@ invalidate I cache
71 	mcr	p15, 0, ip, c7, c6, 0		@ invalidate D cache
77  *	Clean and invalidate a range of cache entries in the specified
80  *	- start - start address (inclusive, page aligned)
81  *	- end	- end address (exclusive, page aligned)
82  *	- flags	- vma_area_struct flags describing address space
85 	sub	r3, r1, r0			@ calculate total size
101  *	region described by start.  If you have non-snooping
104  *	- start  - virtual start address
105  *	- end	 - virtual end address
114  *	region described by start.  If you have non-snooping
117  *	- start  - virtual start address
118  *	- end	 - virtual end address
121 	bic	r0, r0, #CACHE_DLINESIZE - 1
130  *	flush_kern_dcache_area(void *addr, size_t size)
132  *	Ensure no D cache aliasing occurs, either with itself or
133  *	the I cache
135  *	- addr	- kernel address
136  *	- size	- region size
140 	mcr	p15, 0, r2, c7, c5, 0		@ invalidate I cache
149  *	are not cache line aligned, those lines must be written
152  *	- start  - virtual start address
153  *	- end	 - virtual end address
156 	bic	r0, r0, #CACHE_DLINESIZE - 1
168  *	- start  - virtual start address
169  *	- end	 - virtual end address
175  *	dma_unmap_area(start, size, dir)
176  *	- start	- kernel virtual start address
177  *	- size	- size of region
178  *	- dir	- DMA direction
187  *	dma_map_area(start, size, dir)
188  *	- start	- kernel virtual start address
189  *	- size	- size of region
190  *	- dir	- DMA direction
202 	@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)