arm/mm/proc-arm1026.S

1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3  *  linux/arch/arm/mm/proc-arm1026.S: MMU functions for ARM1026EJ-S
7  *  hacked for non-paged-MM by Hyok S. Choi, 2003.
10  * functions on the ARM1026EJ-S.
16 #include <asm/asm-offsets.h>
18 #include <asm/pgtable-hwdef.h>
21 #include "proc-macros.S"
25  * using the single invalidate entry instructions.  Anything larger
59 ENTRY(cpu_arm1026_proc_init)
65 ENTRY(cpu_arm1026_proc_fin)
83 ENTRY(cpu_arm1026_reset)
102 ENTRY(cpu_arm1026_do_idle)
115 ENTRY(arm1026_flush_icache_all)
126  *	Invalidate all cache entries in a particular address
129 ENTRY(arm1026_flush_user_cache_all)
136 ENTRY(arm1026_flush_kern_cache_all)
155  *	address space.
157  *	- start	- start address (inclusive)
158  *	- end	- end address (exclusive)
159  *	- flags	- vm_flags for this space
161 ENTRY(arm1026_flush_user_cache_range)
168 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean+invalidate D entry
184  *	region described by start.  If you have non-snooping
187  *	- start	- virtual start address
188  *	- end	- virtual end address
190 ENTRY(arm1026_coherent_kern_range)
196  *	region described by start.  If you have non-snooping
199  *	- start	- virtual start address
200  *	- end	- virtual end address
202 ENTRY(arm1026_coherent_user_range)
204 	bic	r0, r0, #CACHE_DLINESIZE - 1
207 	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
210 	mcr	p15, 0, r0, c7, c5, 1		@ invalidate I entry
225  *	- addr	- kernel address
226  *	- size	- region size
228 ENTRY(arm1026_flush_kern_dcache_area)
232 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean+invalidate D entry
243  *	Invalidate (discard) the specified virtual address range.
248  *	- start	- virtual start address
249  *	- end	- virtual end address
256 	tst	r0, #CACHE_DLINESIZE - 1
257 	bic	r0, r0, #CACHE_DLINESIZE - 1
258 	mcrne	p15, 0, r0, c7, c10, 1		@ clean D entry
259 	tst	r1, #CACHE_DLINESIZE - 1
260 	mcrne	p15, 0, r1, c7, c10, 1		@ clean D entry
261 1:	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
272  *	Clean the specified virtual address range.
274  *	- start	- virtual start address
275  *	- end	- virtual end address
282 	bic	r0, r0, #CACHE_DLINESIZE - 1
283 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
294  *	Clean and invalidate the specified virtual address range.
296  *	- start	- virtual start address
297  *	- end	- virtual end address
299 ENTRY(arm1026_dma_flush_range)
302 	bic	r0, r0, #CACHE_DLINESIZE - 1
303 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean+invalidate D entry
313  *	- start	- kernel virtual start address
314  *	- size	- size of region
315  *	- dir	- DMA direction
317 ENTRY(arm1026_dma_map_area)
327  *	- start	- kernel virtual start address
328  *	- size	- size of region
329  *	- dir	- DMA direction
331 ENTRY(arm1026_dma_unmap_area)
338 	@ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
342 ENTRY(cpu_arm1026_dcache_clean_area)
345 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
362 ENTRY(cpu_arm1026_switch_mm)
384 ENTRY(cpu_arm1026_set_pte_ext)
389 	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
416 	.size	__arm1026_setup, . - __arm1026_setup
429 	@ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
437 	string	cpu_arm1026_name, "ARM1026EJ-S"
444 	.long	0x4106a260			@ ARM 1026EJ-S (v5TEJ)
463 	.size	__arm1026_proc_info, . - __arm1026_proc_info