diff options
Diffstat (limited to 'drivers/net/ipa/ipa_mem.h')
| -rw-r--r-- | drivers/net/ipa/ipa_mem.h | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/drivers/net/ipa/ipa_mem.h b/drivers/net/ipa/ipa_mem.h index f99180f84f0d..b25babade787 100644 --- a/drivers/net/ipa/ipa_mem.h +++ b/drivers/net/ipa/ipa_mem.h @@ -1,11 +1,15 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. - * Copyright (C) 2019-2020 Linaro Ltd. + * Copyright (C) 2019-2024 Linaro Ltd. */ #ifndef _IPA_MEM_H_ #define _IPA_MEM_H_ +#include <linux/types.h> + +struct platform_device; + struct ipa; struct ipa_mem_data; @@ -28,6 +32,7 @@ struct ipa_mem_data; * The set of memory regions is defined in configuration data. They are * subject to these constraints: * - a zero offset and zero size represents and undefined region + * - a region's size does not include space for its "canary" values * - a region's offset is defined to be *past* all "canary" values * - offset must be large enough to account for all canaries * - a region's size may be zero, but may still have canaries @@ -53,39 +58,54 @@ enum ipa_mem_id { IPA_MEM_V6_ROUTE_HASHED, /* 2 canaries */ IPA_MEM_V6_ROUTE, /* 2 canaries */ IPA_MEM_MODEM_HEADER, /* 2 canaries */ - IPA_MEM_AP_HEADER, /* 0 canaries */ + IPA_MEM_AP_HEADER, /* 0 canaries, optional */ IPA_MEM_MODEM_PROC_CTX, /* 2 canaries */ IPA_MEM_AP_PROC_CTX, /* 0 canaries */ - IPA_MEM_PDN_CONFIG, /* 2 canaries (IPA v4.0 and above) */ - IPA_MEM_STATS_QUOTA, /* 2 canaries (IPA v4.0 and above) */ - IPA_MEM_STATS_TETHERING, /* 0 canaries (IPA v4.0 and above) */ - IPA_MEM_STATS_DROP, /* 0 canaries (IPA v4.0 and above) */ - IPA_MEM_MODEM, /* 0 canaries */ - IPA_MEM_UC_EVENT_RING, /* 1 canary */ + IPA_MEM_MODEM, /* 0/2 canaries */ + IPA_MEM_UC_EVENT_RING, /* 1 canary, optional */ + IPA_MEM_PDN_CONFIG, /* 0/2 canaries (IPA v4.0+) */ + IPA_MEM_STATS_QUOTA_MODEM, /* 2/4 canaries (IPA v4.0+) */ + IPA_MEM_STATS_QUOTA_AP, /* 0 canaries, optional (IPA v4.0+) */ + IPA_MEM_STATS_TETHERING, /* 0 canaries, optional (IPA v4.0+) */ + IPA_MEM_STATS_DROP, /* 0 canaries, optional (IPA v4.0+) */ + /* The next 7 filter and route statistics regions are optional */ + IPA_MEM_STATS_V4_FILTER, /* 0 canaries (IPA v4.0-v4.2) */ + IPA_MEM_STATS_V6_FILTER, /* 0 canaries (IPA v4.0-v4.2) */ + IPA_MEM_STATS_V4_ROUTE, /* 0 canaries (IPA v4.0-v4.2) */ + IPA_MEM_STATS_V6_ROUTE, /* 0 canaries (IPA v4.0-v4.2) */ + IPA_MEM_AP_V4_FILTER, /* 2 canaries (IPA v5.0) */ + IPA_MEM_AP_V6_FILTER, /* 0 canaries (IPA v5.0) */ + IPA_MEM_STATS_FILTER_ROUTE, /* 0 canaries (IPA v4.5+) */ + IPA_MEM_NAT_TABLE, /* 4 canaries, optional (IPA v4.5+) */ + IPA_MEM_END_MARKER, /* 1 canary (not a real region) */ IPA_MEM_COUNT, /* Number of regions (not an index) */ }; /** * struct ipa_mem - IPA local memory region description + * @id: memory region identifier * @offset: offset in IPA memory space to base of the region * @size: size in bytes base of the region - * @canary_count # 32-bit "canary" values that precede region + * @canary_count: Number of 32-bit "canary" values that precede region */ struct ipa_mem { + enum ipa_mem_id id; u32 offset; u16 size; u16 canary_count; }; +const struct ipa_mem *ipa_mem_find(struct ipa *ipa, enum ipa_mem_id mem_id); + int ipa_mem_config(struct ipa *ipa); void ipa_mem_deconfig(struct ipa *ipa); -int ipa_mem_setup(struct ipa *ipa); -void ipa_mem_teardown(struct ipa *ipa); +int ipa_mem_setup(struct ipa *ipa); /* No ipa_mem_teardown() needed */ int ipa_mem_zero_modem(struct ipa *ipa); -int ipa_mem_init(struct ipa *ipa, const struct ipa_mem_data *mem_data); +int ipa_mem_init(struct ipa *ipa, struct platform_device *pdev, + const struct ipa_mem_data *mem_data); void ipa_mem_exit(struct ipa *ipa); #endif /* _IPA_MEM_H_ */ |