Lines Matching +full:memory +full:- +full:region

1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2019-2021 Linaro Ltd.
13  * DOC: IPA Local Memory
15  * The IPA has a block of shared memory, divided into regions used for
19  * the "ipa-shared" memory range) and size found in the IPA_SHARED_MEM_SIZE
22  * Each region is optionally preceded by one or more 32-bit "canary" values.
23  * These are meant to detect out-of-range writes (if they become corrupted).
24  * A given region (such as a filter or routing table) has the same number
28  * The set of memory regions is defined in configuration data.  They are
30  * - a zero offset and zero size represents and undefined region
31  * - a region's size does not include space for its "canary" values
32  * - a region's offset is defined to be *past* all "canary" values
33  * - offset must be large enough to account for all canaries
34  * - a region's size may be zero, but may still have canaries
35  * - all offsets must be 8-byte aligned
36  * - most sizes must be a multiple of 8
37  * - modem memory size must be a multiple of 4
38  * - the microcontroller ring offset must be a multiple of 1024
41 /* The maximum allowed size for any memory region */
44 /* IPA-resident memory region ids */
68 	IPA_MEM_STATS_V4_FILTER,	/* 0 canaries (IPA v4.0-v4.2) */
69 	IPA_MEM_STATS_V6_FILTER,	/* 0 canaries (IPA v4.0-v4.2) */
70 	IPA_MEM_STATS_V4_ROUTE,		/* 0 canaries (IPA v4.0-v4.2) */
71 	IPA_MEM_STATS_V6_ROUTE,		/* 0 canaries (IPA v4.0-v4.2) */
74 	IPA_MEM_END_MARKER,		/* 1 canary (not a real region) */
79  * struct ipa_mem - IPA local memory region description
80  * @id:			memory region identifier
81  * @offset:		offset in IPA memory space to base of the region
82  * @size:		size in bytes base of the region
83  * @canary_count:	Number of 32-bit "canary" values that precede region