1 // SPDX-License-Identifier: GPL-2.0+
3  * Copyright (C) 2012-2014 Panasonic Corporation
4  * Copyright (C) 2015-2016 Socionext Inc.
14 #include "cache-uniphier.h"
19 #define    UNIPHIER_SSCC_ACT			(0x1 << 19)	/* Inst-Data separate */
21 #define    UNIPHIER_SSCC_PRD			(0x1 << 17)	/* enable pre-fetch */
22 #define    UNIPHIER_SSCC_ON			(0x1 <<  0)	/* enable cache */
30 #define UNIPHIER_SSCOPE		0x506c0244	/* Cache Operation Primitive Entry */
35 #define    UNIPHIER_SSCOPE_CM_FLUSH_PREFETCH	0x9	/* flush p-fetch buf */
51 #define    UNIPHIER_SSCOQM_CM_PREFETCH		0x3	/* prefetch to cache */
52 #define    UNIPHIER_SSCOQM_CM_PREFETCH_BUF	0x4	/* prefetch to pf-buf */
56 #define UNIPHIER_SSCOQAD	0x506c024c	/* Cache Operation Queue Address */
57 #define UNIPHIER_SSCOQSZ	0x506c0250	/* Cache Operation Queue Size */
58 #define UNIPHIER_SSCOQMASK	0x506c0254	/* Cache Operation Queue Address Mask */
59 #define UNIPHIER_SSCOQWN	0x506c0258	/* Cache Operation Queue Way Number */
60 #define UNIPHIER_SSCOPPQSEF	0x506c025c	/* Cache Operation Queue Set Complete */
63 #define UNIPHIER_SSCOLPQS	0x506c0260	/* Cache Operation Queue Status */
69 #define UNIPHIER_SSC_RANGE_OP_MAX_SIZE	(0x00400000 - (UNIPHIER_SSC_LINE_SIZE))
77 /* uniphier_cache_sync - perform a sync point for a particular cache level */
87  * uniphier_cache_maint_common - run a queue operation
90  * @size: data size of range operation (don't care for "all" operation)
91  * @ways: target ways (don't care for operations other than pre-fetch, touch
92  * @operation: flags to specify the desired cache operation
94 static void uniphier_cache_maint_common(u32 start, u32 size, u32 ways,  in uniphier_cache_maint_common()  argument
101 		/* set cache operation */  in uniphier_cache_maint_common()
107 			writel(size, UNIPHIER_SSCOQSZ);  in uniphier_cache_maint_common()
131 	u32 size;  in uniphier_cache_maint_range()  local
135 	 * perform a cache operation for the first cache-line  in uniphier_cache_maint_range()
137 	start = start & ~(UNIPHIER_SSC_LINE_SIZE - 1);  in uniphier_cache_maint_range()
139 	size = end - start;  in uniphier_cache_maint_range()
141 	if (unlikely(size >= (u32)(-UNIPHIER_SSC_LINE_SIZE))) {  in uniphier_cache_maint_range()
142 		/* this means cache operation for all range */  in uniphier_cache_maint_range()
149 	 * perform a cache operation for the last cache-line  in uniphier_cache_maint_range()
151 	size = ALIGN(size, UNIPHIER_SSC_LINE_SIZE);  in uniphier_cache_maint_range()
153 	while (size) {  in uniphier_cache_maint_range()
154 		u32 chunk_size = min_t(u32, size, UNIPHIER_SSC_RANGE_OP_MAX_SIZE);  in uniphier_cache_maint_range()
160 		size -= chunk_size;  in uniphier_cache_maint_range()
251 	if (start & (UNIPHIER_SSC_LINE_SIZE - 1)) {  in v7_outer_cache_inval_range()
252 		start &= ~(UNIPHIER_SSC_LINE_SIZE - 1);  in v7_outer_cache_inval_range()
263 	if (end & (UNIPHIER_SSC_LINE_SIZE - 1)) {  in v7_outer_cache_inval_range()
264 		end &= ~(UNIPHIER_SSC_LINE_SIZE - 1);  in v7_outer_cache_inval_range()