1 // SPDX-License-Identifier: GPL-2.0
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4 * Copyright (C) 2019-2023 Linaro Ltd.
12 /* Is this register ID valid for the current IPA version? */
13 static bool ipa_reg_id_valid(struct ipa *ipa, enum ipa_reg_id reg_id)
15 enum ipa_version version = ipa->version;
18 case FILT_ROUT_HASH_EN:
19 return version == IPA_VERSION_4_2;
21 case FILT_ROUT_HASH_FLUSH:
22 return version < IPA_VERSION_5_0 && version != IPA_VERSION_4_2;
24 case FILT_ROUT_CACHE_FLUSH:
25 case ENDP_FILTER_CACHE_CFG:
26 case ENDP_ROUTER_CACHE_CFG:
27 return version >= IPA_VERSION_5_0;
31 return version < IPA_VERSION_4_5;
35 case IDLE_INDICATION_CFG:
36 return version >= IPA_VERSION_3_5;
38 case QTIME_TIMESTAMP_CFG:
39 case TIMERS_XO_CLK_DIV_CFG:
40 case TIMERS_PULSE_GRAN_CFG:
41 return version >= IPA_VERSION_4_5;
43 case SRC_RSRC_GRP_45_RSRC_TYPE:
44 case DST_RSRC_GRP_45_RSRC_TYPE:
45 return version <= IPA_VERSION_3_1 ||
46 version == IPA_VERSION_4_5 ||
47 version >= IPA_VERSION_5_0;
49 case SRC_RSRC_GRP_67_RSRC_TYPE:
50 case DST_RSRC_GRP_67_RSRC_TYPE:
51 return version <= IPA_VERSION_3_1 ||
52 version >= IPA_VERSION_5_0;
54 case ENDP_FILTER_ROUTER_HSH_CFG:
55 return version < IPA_VERSION_5_0 &&
56 version != IPA_VERSION_4_2;
60 return version >= IPA_VERSION_3_1;
68 case STATE_AGGR_ACTIVE:
69 case LOCAL_PKT_PROC_CNTXT:
70 case AGGR_FORCE_CLOSE:
71 case SRC_RSRC_GRP_01_RSRC_TYPE:
72 case SRC_RSRC_GRP_23_RSRC_TYPE:
73 case DST_RSRC_GRP_01_RSRC_TYPE:
74 case DST_RSRC_GRP_23_RSRC_TYPE:
79 case ENDP_INIT_HDR_EXT:
80 case ENDP_INIT_HDR_METADATA_MASK:
83 case ENDP_INIT_HOL_BLOCK_EN:
84 case ENDP_INIT_HOL_BLOCK_TIMER:
85 case ENDP_INIT_DEAGGR:
86 case ENDP_INIT_RSRC_GRP:
93 case IRQ_SUSPEND_INFO:
94 return true; /* These should be defined for all versions */
101 const struct reg *ipa_reg(struct ipa *ipa, enum ipa_reg_id reg_id)
103 if (WARN(!ipa_reg_id_valid(ipa, reg_id), "invalid reg %u\n", reg_id))
106 return reg(ipa->regs, reg_id);
109 static const struct regs *ipa_regs(enum ipa_version version)
112 case IPA_VERSION_3_1:
113 return &ipa_regs_v3_1;
114 case IPA_VERSION_3_5_1:
115 return &ipa_regs_v3_5_1;
116 case IPA_VERSION_4_2:
117 return &ipa_regs_v4_2;
118 case IPA_VERSION_4_5:
119 return &ipa_regs_v4_5;
120 case IPA_VERSION_4_7:
121 return &ipa_regs_v4_7;
122 case IPA_VERSION_4_9:
123 return &ipa_regs_v4_9;
124 case IPA_VERSION_4_11:
125 return &ipa_regs_v4_11;
126 case IPA_VERSION_5_0:
127 return &ipa_regs_v5_0;
128 case IPA_VERSION_5_5:
129 return &ipa_regs_v5_5;
135 int ipa_reg_init(struct ipa *ipa)
137 struct device *dev = &ipa->pdev->dev;
138 const struct regs *regs;
139 struct resource *res;
141 regs = ipa_regs(ipa->version);
145 if (WARN_ON(regs->reg_count > IPA_REG_ID_COUNT))
148 /* Setup IPA register memory */
149 res = platform_get_resource_byname(ipa->pdev, IORESOURCE_MEM,
152 dev_err(dev, "DT error getting \"ipa-reg\" memory property\n");
156 ipa->reg_virt = ioremap(res->start, resource_size(res));
157 if (!ipa->reg_virt) {
158 dev_err(dev, "unable to remap \"ipa-reg\" memory\n");
166 void ipa_reg_exit(struct ipa *ipa)
168 iounmap(ipa->reg_virt);