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Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +00001/*
Jimmy Brissoned202072020-08-04 16:18:52 -05002 * Copyright (c) 2016-2020, ARM Limited and Contributors. All rights reserved.
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +00003 *
dp-armfa3cf0b2017-05-03 09:38:09 +01004 * SPDX-License-Identifier: BSD-3-Clause
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +00005 */
6
Antonio Nino Diaz5f475792018-10-15 14:58:11 +01007#ifndef TZC_COMMON_PRIVATE_H
8#define TZC_COMMON_PRIVATE_H
Antonio Nino Diaz0ffc4492017-02-28 10:58:25 +00009
Soby Mathewd6452322016-05-05 13:59:07 +010010#include <arch.h>
11#include <arch_helpers.h>
Antonio Nino Diaze0f90632018-12-14 00:18:21 +000012#include <drivers/arm/tzc_common.h>
13#include <lib/mmio.h>
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000014
15#define DEFINE_TZC_COMMON_WRITE_ACTION(fn_name, macro_name) \
16 static inline void _tzc##fn_name##_write_action( \
17 uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010018 unsigned int action) \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000019 { \
20 mmio_write_32(base + TZC_##macro_name##_ACTION_OFF, \
21 action); \
22 }
23
24#define DEFINE_TZC_COMMON_WRITE_REGION_BASE(fn_name, macro_name) \
25 static inline void _tzc##fn_name##_write_region_base( \
Yatharth Kocharfc719752016-04-08 14:40:44 +010026 uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010027 unsigned int region_no, \
Yatharth Kocharfc719752016-04-08 14:40:44 +010028 unsigned long long region_base) \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000029 { \
30 mmio_write_32(base + \
31 TZC_REGION_OFFSET( \
32 TZC_##macro_name##_REGION_SIZE, \
Jimmy Brissoned202072020-08-04 16:18:52 -050033 (u_register_t)region_no) + \
Yatharth Kocharfc719752016-04-08 14:40:44 +010034 TZC_##macro_name##_REGION_BASE_LOW_0_OFFSET, \
35 (uint32_t)region_base); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000036 mmio_write_32(base + \
37 TZC_REGION_OFFSET( \
38 TZC_##macro_name##_REGION_SIZE, \
Jimmy Brissoned202072020-08-04 16:18:52 -050039 (u_register_t)region_no) + \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000040 TZC_##macro_name##_REGION_BASE_HIGH_0_OFFSET, \
Yatharth Kocharfc719752016-04-08 14:40:44 +010041 (uint32_t)(region_base >> 32)); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000042 }
43
44#define DEFINE_TZC_COMMON_WRITE_REGION_TOP(fn_name, macro_name) \
45 static inline void _tzc##fn_name##_write_region_top( \
Yatharth Kocharfc719752016-04-08 14:40:44 +010046 uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010047 unsigned int region_no, \
Yatharth Kocharfc719752016-04-08 14:40:44 +010048 unsigned long long region_top) \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000049 { \
50 mmio_write_32(base + \
Jimmy Brissoned202072020-08-04 16:18:52 -050051 TZC_REGION_OFFSET( \
52 TZC_##macro_name##_REGION_SIZE, \
53 (u_register_t)region_no) + \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000054 TZC_##macro_name##_REGION_TOP_LOW_0_OFFSET, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010055 (uint32_t)region_top); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000056 mmio_write_32(base + \
57 TZC_REGION_OFFSET( \
58 TZC_##macro_name##_REGION_SIZE, \
Jimmy Brissoned202072020-08-04 16:18:52 -050059 (u_register_t)region_no) + \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000060 TZC_##macro_name##_REGION_TOP_HIGH_0_OFFSET, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010061 (uint32_t)(region_top >> 32)); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000062 }
63
64#define DEFINE_TZC_COMMON_WRITE_REGION_ATTRIBUTES(fn_name, macro_name) \
65 static inline void _tzc##fn_name##_write_region_attributes( \
66 uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010067 unsigned int region_no, \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000068 unsigned int attr) \
69 { \
70 mmio_write_32(base + \
71 TZC_REGION_OFFSET( \
72 TZC_##macro_name##_REGION_SIZE, \
Jimmy Brissoned202072020-08-04 16:18:52 -050073 (u_register_t)region_no) + \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000074 TZC_##macro_name##_REGION_ATTR_0_OFFSET, \
75 attr); \
76 }
77
78#define DEFINE_TZC_COMMON_WRITE_REGION_ID_ACCESS(fn_name, macro_name) \
79 static inline void _tzc##fn_name##_write_region_id_access( \
80 uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010081 unsigned int region_no, \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000082 unsigned int val) \
83 { \
84 mmio_write_32(base + \
85 TZC_REGION_OFFSET( \
86 TZC_##macro_name##_REGION_SIZE, \
Jimmy Brissoned202072020-08-04 16:18:52 -050087 (u_register_t)region_no) + \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000088 TZC_##macro_name##_REGION_ID_ACCESS_0_OFFSET, \
89 val); \
90 }
91
92/*
93 * It is used to program region 0 ATTRIBUTES and ACCESS register.
94 */
95#define DEFINE_TZC_COMMON_CONFIGURE_REGION0(fn_name) \
Roberto Vargas2ca18d92018-02-12 12:36:17 +000096 static void _tzc##fn_name##_configure_region0(uintptr_t base, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +010097 unsigned int sec_attr, \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +000098 unsigned int ns_device_access) \
99 { \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100100 assert(base != 0U); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000101 VERBOSE("TrustZone : Configuring region 0 " \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100102 "(TZC Interface Base=0x%lx sec_attr=0x%x," \
103 " ns_devs=0x%x)\n", base, \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000104 sec_attr, ns_device_access); \
105 \
106 /* Set secure attributes on region 0 */ \
107 _tzc##fn_name##_write_region_attributes(base, 0, \
108 sec_attr << TZC_REGION_ATTR_SEC_SHIFT); \
109 \
110 /***************************************************/ \
111 /* Specify which non-secure devices have permission*/ \
112 /* to access region 0. */ \
113 /***************************************************/ \
114 _tzc##fn_name##_write_region_id_access(base, \
115 0, \
116 ns_device_access); \
117 }
118
119/*
120 * It is used to program a region from 1 to 8 in the TrustZone controller.
121 * NOTE:
122 * Region 0 is special; it is preferable to use
123 * ##fn_name##_configure_region0 for this region (see comment for
124 * that function).
125 */
126#define DEFINE_TZC_COMMON_CONFIGURE_REGION(fn_name) \
Roberto Vargas2ca18d92018-02-12 12:36:17 +0000127 static void _tzc##fn_name##_configure_region(uintptr_t base, \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000128 unsigned int filters, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100129 unsigned int region_no, \
Yatharth Kocharfc719752016-04-08 14:40:44 +0100130 unsigned long long region_base, \
131 unsigned long long region_top, \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100132 unsigned int sec_attr, \
133 unsigned int nsaid_permissions) \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000134 { \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100135 assert(base != 0U); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000136 VERBOSE("TrustZone : Configuring region " \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100137 "(TZC Interface Base: 0x%lx, region_no = %u)" \
138 "...\n", base, region_no); \
Yatharth Kocharfc719752016-04-08 14:40:44 +0100139 VERBOSE("TrustZone : ... base = %llx, top = %llx," \
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100140 "\n", region_base, region_top); \
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000141 VERBOSE("TrustZone : ... sec_attr = 0x%x," \
142 " ns_devs = 0x%x)\n", \
143 sec_attr, nsaid_permissions); \
144 \
145 /***************************************************/ \
146 /* Inputs look ok, start programming registers. */ \
147 /* All the address registers are 32 bits wide and */ \
148 /* have a LOW and HIGH */ \
149 /* component used to construct an address up to a */ \
150 /* 64bit. */ \
151 /***************************************************/ \
152 _tzc##fn_name##_write_region_base(base, \
153 region_no, region_base); \
154 _tzc##fn_name##_write_region_top(base, \
155 region_no, region_top); \
156 \
157 /* Enable filter to the region and set secure attributes */\
158 _tzc##fn_name##_write_region_attributes(base, \
159 region_no, \
160 (sec_attr << TZC_REGION_ATTR_SEC_SHIFT) |\
161 (filters << TZC_REGION_ATTR_F_EN_SHIFT));\
162 \
163 /***************************************************/ \
164 /* Specify which non-secure devices have permission*/ \
165 /* to access this region. */ \
166 /***************************************************/ \
167 _tzc##fn_name##_write_region_id_access(base, \
168 region_no, \
169 nsaid_permissions); \
170 }
171
Antonio Nino Diaz0ffc4492017-02-28 10:58:25 +0000172static inline unsigned int _tzc_read_peripheral_id(uintptr_t base)
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000173{
174 unsigned int id;
175
176 id = mmio_read_32(base + PID0_OFF);
177 /* Masks DESC part in PID1 */
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100178 id |= ((mmio_read_32(base + PID1_OFF) & 0xFU) << 8U);
Vikram Kanigiri1eabdbc2016-01-28 17:22:16 +0000179
180 return id;
181}
Soby Mathewd6452322016-05-05 13:59:07 +0100182
Antonio Nino Diaz5f475792018-10-15 14:58:11 +0100183#endif /* TZC_COMMON_PRIVATE_H */