Jhon Plantikow / DHT11

DHT11

TARGET_NUCLEO_F072RB/core_ca_mmu.h@0:c52df770855b, 2015-08-13 (annotated)

Committer:
jhon309
Date:
Thu Aug 13 00:21:57 2015 +0000
Revision:
0:c52df770855b
DHT11

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jhon309 0:c52df770855b 1 ;/**************************************************************************//**
jhon309 0:c52df770855b 2 ; * @file core_ca_mmu.h
jhon309 0:c52df770855b 3 ; * @brief MMU Startup File for
jhon309 0:c52df770855b 4 ; * VE_A9_MP Device Series
jhon309 0:c52df770855b 5 ; * @version V1.01
jhon309 0:c52df770855b 6 ; * @date 25 March 2013
jhon309 0:c52df770855b 7 ; *
jhon309 0:c52df770855b 8 ; * @note
jhon309 0:c52df770855b 9 ; *
jhon309 0:c52df770855b 10 ; ******************************************************************************/
jhon309 0:c52df770855b 11 ;/* Copyright (c) 2012 ARM LIMITED
jhon309 0:c52df770855b 12 ;
jhon309 0:c52df770855b 13 ; All rights reserved.
jhon309 0:c52df770855b 14 ; Redistribution and use in source and binary forms, with or without
jhon309 0:c52df770855b 15 ; modification, are permitted provided that the following conditions are met:
jhon309 0:c52df770855b 16 ; - Redistributions of source code must retain the above copyright
jhon309 0:c52df770855b 17 ; notice, this list of conditions and the following disclaimer.
jhon309 0:c52df770855b 18 ; - Redistributions in binary form must reproduce the above copyright
jhon309 0:c52df770855b 19 ; notice, this list of conditions and the following disclaimer in the
jhon309 0:c52df770855b 20 ; documentation and/or other materials provided with the distribution.
jhon309 0:c52df770855b 21 ; - Neither the name of ARM nor the names of its contributors may be used
jhon309 0:c52df770855b 22 ; to endorse or promote products derived from this software without
jhon309 0:c52df770855b 23 ; specific prior written permission.
jhon309 0:c52df770855b 24 ; *
jhon309 0:c52df770855b 25 ; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
jhon309 0:c52df770855b 26 ; AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
jhon309 0:c52df770855b 27 ; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
jhon309 0:c52df770855b 28 ; ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS AND CONTRIBUTORS BE
jhon309 0:c52df770855b 29 ; LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
jhon309 0:c52df770855b 30 ; CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
jhon309 0:c52df770855b 31 ; SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
jhon309 0:c52df770855b 32 ; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
jhon309 0:c52df770855b 33 ; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
jhon309 0:c52df770855b 34 ; ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
jhon309 0:c52df770855b 35 ; POSSIBILITY OF SUCH DAMAGE.
jhon309 0:c52df770855b 36 ; ---------------------------------------------------------------------------*/
jhon309 0:c52df770855b 37
jhon309 0:c52df770855b 38 #ifdef __cplusplus
jhon309 0:c52df770855b 39 extern "C" {
jhon309 0:c52df770855b 40 #endif
jhon309 0:c52df770855b 41
jhon309 0:c52df770855b 42 #ifndef _MMU_FUNC_H
jhon309 0:c52df770855b 43 #define _MMU_FUNC_H
jhon309 0:c52df770855b 44
jhon309 0:c52df770855b 45 #define SECTION_DESCRIPTOR (0x2)
jhon309 0:c52df770855b 46 #define SECTION_MASK (0xFFFFFFFC)
jhon309 0:c52df770855b 47
jhon309 0:c52df770855b 48 #define SECTION_TEXCB_MASK (0xFFFF8FF3)
jhon309 0:c52df770855b 49 #define SECTION_B_SHIFT (2)
jhon309 0:c52df770855b 50 #define SECTION_C_SHIFT (3)
jhon309 0:c52df770855b 51 #define SECTION_TEX0_SHIFT (12)
jhon309 0:c52df770855b 52 #define SECTION_TEX1_SHIFT (13)
jhon309 0:c52df770855b 53 #define SECTION_TEX2_SHIFT (14)
jhon309 0:c52df770855b 54
jhon309 0:c52df770855b 55 #define SECTION_XN_MASK (0xFFFFFFEF)
jhon309 0:c52df770855b 56 #define SECTION_XN_SHIFT (4)
jhon309 0:c52df770855b 57
jhon309 0:c52df770855b 58 #define SECTION_DOMAIN_MASK (0xFFFFFE1F)
jhon309 0:c52df770855b 59 #define SECTION_DOMAIN_SHIFT (5)
jhon309 0:c52df770855b 60
jhon309 0:c52df770855b 61 #define SECTION_P_MASK (0xFFFFFDFF)
jhon309 0:c52df770855b 62 #define SECTION_P_SHIFT (9)
jhon309 0:c52df770855b 63
jhon309 0:c52df770855b 64 #define SECTION_AP_MASK (0xFFFF73FF)
jhon309 0:c52df770855b 65 #define SECTION_AP_SHIFT (10)
jhon309 0:c52df770855b 66 #define SECTION_AP2_SHIFT (15)
jhon309 0:c52df770855b 67
jhon309 0:c52df770855b 68 #define SECTION_S_MASK (0xFFFEFFFF)
jhon309 0:c52df770855b 69 #define SECTION_S_SHIFT (16)
jhon309 0:c52df770855b 70
jhon309 0:c52df770855b 71 #define SECTION_NG_MASK (0xFFFDFFFF)
jhon309 0:c52df770855b 72 #define SECTION_NG_SHIFT (17)
jhon309 0:c52df770855b 73
jhon309 0:c52df770855b 74 #define SECTION_NS_MASK (0xFFF7FFFF)
jhon309 0:c52df770855b 75 #define SECTION_NS_SHIFT (19)
jhon309 0:c52df770855b 76
jhon309 0:c52df770855b 77
jhon309 0:c52df770855b 78 #define PAGE_L1_DESCRIPTOR (0x1)
jhon309 0:c52df770855b 79 #define PAGE_L1_MASK (0xFFFFFFFC)
jhon309 0:c52df770855b 80
jhon309 0:c52df770855b 81 #define PAGE_L2_4K_DESC (0x2)
jhon309 0:c52df770855b 82 #define PAGE_L2_4K_MASK (0xFFFFFFFD)
jhon309 0:c52df770855b 83
jhon309 0:c52df770855b 84 #define PAGE_L2_64K_DESC (0x1)
jhon309 0:c52df770855b 85 #define PAGE_L2_64K_MASK (0xFFFFFFFC)
jhon309 0:c52df770855b 86
jhon309 0:c52df770855b 87 #define PAGE_4K_TEXCB_MASK (0xFFFFFE33)
jhon309 0:c52df770855b 88 #define PAGE_4K_B_SHIFT (2)
jhon309 0:c52df770855b 89 #define PAGE_4K_C_SHIFT (3)
jhon309 0:c52df770855b 90 #define PAGE_4K_TEX0_SHIFT (6)
jhon309 0:c52df770855b 91 #define PAGE_4K_TEX1_SHIFT (7)
jhon309 0:c52df770855b 92 #define PAGE_4K_TEX2_SHIFT (8)
jhon309 0:c52df770855b 93
jhon309 0:c52df770855b 94 #define PAGE_64K_TEXCB_MASK (0xFFFF8FF3)
jhon309 0:c52df770855b 95 #define PAGE_64K_B_SHIFT (2)
jhon309 0:c52df770855b 96 #define PAGE_64K_C_SHIFT (3)
jhon309 0:c52df770855b 97 #define PAGE_64K_TEX0_SHIFT (12)
jhon309 0:c52df770855b 98 #define PAGE_64K_TEX1_SHIFT (13)
jhon309 0:c52df770855b 99 #define PAGE_64K_TEX2_SHIFT (14)
jhon309 0:c52df770855b 100
jhon309 0:c52df770855b 101 #define PAGE_TEXCB_MASK (0xFFFF8FF3)
jhon309 0:c52df770855b 102 #define PAGE_B_SHIFT (2)
jhon309 0:c52df770855b 103 #define PAGE_C_SHIFT (3)
jhon309 0:c52df770855b 104 #define PAGE_TEX_SHIFT (12)
jhon309 0:c52df770855b 105
jhon309 0:c52df770855b 106 #define PAGE_XN_4K_MASK (0xFFFFFFFE)
jhon309 0:c52df770855b 107 #define PAGE_XN_4K_SHIFT (0)
jhon309 0:c52df770855b 108 #define PAGE_XN_64K_MASK (0xFFFF7FFF)
jhon309 0:c52df770855b 109 #define PAGE_XN_64K_SHIFT (15)
jhon309 0:c52df770855b 110
jhon309 0:c52df770855b 111
jhon309 0:c52df770855b 112 #define PAGE_DOMAIN_MASK (0xFFFFFE1F)
jhon309 0:c52df770855b 113 #define PAGE_DOMAIN_SHIFT (5)
jhon309 0:c52df770855b 114
jhon309 0:c52df770855b 115 #define PAGE_P_MASK (0xFFFFFDFF)
jhon309 0:c52df770855b 116 #define PAGE_P_SHIFT (9)
jhon309 0:c52df770855b 117
jhon309 0:c52df770855b 118 #define PAGE_AP_MASK (0xFFFFFDCF)
jhon309 0:c52df770855b 119 #define PAGE_AP_SHIFT (4)
jhon309 0:c52df770855b 120 #define PAGE_AP2_SHIFT (9)
jhon309 0:c52df770855b 121
jhon309 0:c52df770855b 122 #define PAGE_S_MASK (0xFFFFFBFF)
jhon309 0:c52df770855b 123 #define PAGE_S_SHIFT (10)
jhon309 0:c52df770855b 124
jhon309 0:c52df770855b 125 #define PAGE_NG_MASK (0xFFFFF7FF)
jhon309 0:c52df770855b 126 #define PAGE_NG_SHIFT (11)
jhon309 0:c52df770855b 127
jhon309 0:c52df770855b 128 #define PAGE_NS_MASK (0xFFFFFFF7)
jhon309 0:c52df770855b 129 #define PAGE_NS_SHIFT (3)
jhon309 0:c52df770855b 130
jhon309 0:c52df770855b 131 #define OFFSET_1M (0x00100000)
jhon309 0:c52df770855b 132 #define OFFSET_64K (0x00010000)
jhon309 0:c52df770855b 133 #define OFFSET_4K (0x00001000)
jhon309 0:c52df770855b 134
jhon309 0:c52df770855b 135 #define DESCRIPTOR_FAULT (0x00000000)
jhon309 0:c52df770855b 136
jhon309 0:c52df770855b 137 /* ########################### MMU Function Access ########################### */
jhon309 0:c52df770855b 138 /** \ingroup MMU_FunctionInterface
jhon309 0:c52df770855b 139 \defgroup MMU_Functions MMU Functions Interface
jhon309 0:c52df770855b 140 @{
jhon309 0:c52df770855b 141 */
jhon309 0:c52df770855b 142
jhon309 0:c52df770855b 143 /* Attributes enumerations */
jhon309 0:c52df770855b 144
jhon309 0:c52df770855b 145 /* Region size attributes */
jhon309 0:c52df770855b 146 typedef enum
jhon309 0:c52df770855b 147 {
jhon309 0:c52df770855b 148 SECTION,
jhon309 0:c52df770855b 149 PAGE_4k,
jhon309 0:c52df770855b 150 PAGE_64k,
jhon309 0:c52df770855b 151 } mmu_region_size_Type;
jhon309 0:c52df770855b 152
jhon309 0:c52df770855b 153 /* Region type attributes */
jhon309 0:c52df770855b 154 typedef enum
jhon309 0:c52df770855b 155 {
jhon309 0:c52df770855b 156 NORMAL,
jhon309 0:c52df770855b 157 DEVICE,
jhon309 0:c52df770855b 158 SHARED_DEVICE,
jhon309 0:c52df770855b 159 NON_SHARED_DEVICE,
jhon309 0:c52df770855b 160 STRONGLY_ORDERED
jhon309 0:c52df770855b 161 } mmu_memory_Type;
jhon309 0:c52df770855b 162
jhon309 0:c52df770855b 163 /* Region cacheability attributes */
jhon309 0:c52df770855b 164 typedef enum
jhon309 0:c52df770855b 165 {
jhon309 0:c52df770855b 166 NON_CACHEABLE,
jhon309 0:c52df770855b 167 WB_WA,
jhon309 0:c52df770855b 168 WT,
jhon309 0:c52df770855b 169 WB_NO_WA,
jhon309 0:c52df770855b 170 } mmu_cacheability_Type;
jhon309 0:c52df770855b 171
jhon309 0:c52df770855b 172 /* Region parity check attributes */
jhon309 0:c52df770855b 173 typedef enum
jhon309 0:c52df770855b 174 {
jhon309 0:c52df770855b 175 ECC_DISABLED,
jhon309 0:c52df770855b 176 ECC_ENABLED,
jhon309 0:c52df770855b 177 } mmu_ecc_check_Type;
jhon309 0:c52df770855b 178
jhon309 0:c52df770855b 179 /* Region execution attributes */
jhon309 0:c52df770855b 180 typedef enum
jhon309 0:c52df770855b 181 {
jhon309 0:c52df770855b 182 EXECUTE,
jhon309 0:c52df770855b 183 NON_EXECUTE,
jhon309 0:c52df770855b 184 } mmu_execute_Type;
jhon309 0:c52df770855b 185
jhon309 0:c52df770855b 186 /* Region global attributes */
jhon309 0:c52df770855b 187 typedef enum
jhon309 0:c52df770855b 188 {
jhon309 0:c52df770855b 189 GLOBAL,
jhon309 0:c52df770855b 190 NON_GLOBAL,
jhon309 0:c52df770855b 191 } mmu_global_Type;
jhon309 0:c52df770855b 192
jhon309 0:c52df770855b 193 /* Region shareability attributes */
jhon309 0:c52df770855b 194 typedef enum
jhon309 0:c52df770855b 195 {
jhon309 0:c52df770855b 196 NON_SHARED,
jhon309 0:c52df770855b 197 SHARED,
jhon309 0:c52df770855b 198 } mmu_shared_Type;
jhon309 0:c52df770855b 199
jhon309 0:c52df770855b 200 /* Region security attributes */
jhon309 0:c52df770855b 201 typedef enum
jhon309 0:c52df770855b 202 {
jhon309 0:c52df770855b 203 SECURE,
jhon309 0:c52df770855b 204 NON_SECURE,
jhon309 0:c52df770855b 205 } mmu_secure_Type;
jhon309 0:c52df770855b 206
jhon309 0:c52df770855b 207 /* Region access attributes */
jhon309 0:c52df770855b 208 typedef enum
jhon309 0:c52df770855b 209 {
jhon309 0:c52df770855b 210 NO_ACCESS,
jhon309 0:c52df770855b 211 RW,
jhon309 0:c52df770855b 212 READ,
jhon309 0:c52df770855b 213 } mmu_access_Type;
jhon309 0:c52df770855b 214
jhon309 0:c52df770855b 215 /* Memory Region definition */
jhon309 0:c52df770855b 216 typedef struct RegionStruct {
jhon309 0:c52df770855b 217 mmu_region_size_Type rg_t;
jhon309 0:c52df770855b 218 mmu_memory_Type mem_t;
jhon309 0:c52df770855b 219 uint8_t domain;
jhon309 0:c52df770855b 220 mmu_cacheability_Type inner_norm_t;
jhon309 0:c52df770855b 221 mmu_cacheability_Type outer_norm_t;
jhon309 0:c52df770855b 222 mmu_ecc_check_Type e_t;
jhon309 0:c52df770855b 223 mmu_execute_Type xn_t;
jhon309 0:c52df770855b 224 mmu_global_Type g_t;
jhon309 0:c52df770855b 225 mmu_secure_Type sec_t;
jhon309 0:c52df770855b 226 mmu_access_Type priv_t;
jhon309 0:c52df770855b 227 mmu_access_Type user_t;
jhon309 0:c52df770855b 228 mmu_shared_Type sh_t;
jhon309 0:c52df770855b 229
jhon309 0:c52df770855b 230 } mmu_region_attributes_Type;
jhon309 0:c52df770855b 231
jhon309 0:c52df770855b 232 /** \brief Set section execution-never attribute
jhon309 0:c52df770855b 233
jhon309 0:c52df770855b 234 The function sets section execution-never attribute
jhon309 0:c52df770855b 235
jhon309 0:c52df770855b 236 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 237 \param [in] xn Section execution-never attribute : EXECUTE , NON_EXECUTE.
jhon309 0:c52df770855b 238
jhon309 0:c52df770855b 239 \return 0
jhon309 0:c52df770855b 240 */
jhon309 0:c52df770855b 241 __STATIC_INLINE int __xn_section(uint32_t *descriptor_l1, mmu_execute_Type xn)
jhon309 0:c52df770855b 242 {
jhon309 0:c52df770855b 243 *descriptor_l1 &= SECTION_XN_MASK;
jhon309 0:c52df770855b 244 *descriptor_l1 |= ((xn & 0x1) << SECTION_XN_SHIFT);
jhon309 0:c52df770855b 245 return 0;
jhon309 0:c52df770855b 246 }
jhon309 0:c52df770855b 247
jhon309 0:c52df770855b 248 /** \brief Set section domain
jhon309 0:c52df770855b 249
jhon309 0:c52df770855b 250 The function sets section domain
jhon309 0:c52df770855b 251
jhon309 0:c52df770855b 252 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 253 \param [in] domain Section domain
jhon309 0:c52df770855b 254
jhon309 0:c52df770855b 255 \return 0
jhon309 0:c52df770855b 256 */
jhon309 0:c52df770855b 257 __STATIC_INLINE int __domain_section(uint32_t *descriptor_l1, uint8_t domain)
jhon309 0:c52df770855b 258 {
jhon309 0:c52df770855b 259 *descriptor_l1 &= SECTION_DOMAIN_MASK;
jhon309 0:c52df770855b 260 *descriptor_l1 |= ((domain & 0xF) << SECTION_DOMAIN_SHIFT);
jhon309 0:c52df770855b 261 return 0;
jhon309 0:c52df770855b 262 }
jhon309 0:c52df770855b 263
jhon309 0:c52df770855b 264 /** \brief Set section parity check
jhon309 0:c52df770855b 265
jhon309 0:c52df770855b 266 The function sets section parity check
jhon309 0:c52df770855b 267
jhon309 0:c52df770855b 268 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 269 \param [in] p_bit Parity check: ECC_DISABLED, ECC_ENABLED
jhon309 0:c52df770855b 270
jhon309 0:c52df770855b 271 \return 0
jhon309 0:c52df770855b 272 */
jhon309 0:c52df770855b 273 __STATIC_INLINE int __p_section(uint32_t *descriptor_l1, mmu_ecc_check_Type p_bit)
jhon309 0:c52df770855b 274 {
jhon309 0:c52df770855b 275 *descriptor_l1 &= SECTION_P_MASK;
jhon309 0:c52df770855b 276 *descriptor_l1 |= ((p_bit & 0x1) << SECTION_P_SHIFT);
jhon309 0:c52df770855b 277 return 0;
jhon309 0:c52df770855b 278 }
jhon309 0:c52df770855b 279
jhon309 0:c52df770855b 280 /** \brief Set section access privileges
jhon309 0:c52df770855b 281
jhon309 0:c52df770855b 282 The function sets section access privileges
jhon309 0:c52df770855b 283
jhon309 0:c52df770855b 284 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 285 \param [in] user User Level Access: NO_ACCESS, RW, READ
jhon309 0:c52df770855b 286 \param [in] priv Privilege Level Access: NO_ACCESS, RW, READ
jhon309 0:c52df770855b 287 \param [in] afe Access flag enable
jhon309 0:c52df770855b 288
jhon309 0:c52df770855b 289 \return 0
jhon309 0:c52df770855b 290 */
jhon309 0:c52df770855b 291 __STATIC_INLINE int __ap_section(uint32_t *descriptor_l1, mmu_access_Type user, mmu_access_Type priv, uint32_t afe)
jhon309 0:c52df770855b 292 {
jhon309 0:c52df770855b 293 uint32_t ap = 0;
jhon309 0:c52df770855b 294
jhon309 0:c52df770855b 295 if (afe == 0) { //full access
jhon309 0:c52df770855b 296 if ((priv == NO_ACCESS) && (user == NO_ACCESS)) { ap = 0x0; }
jhon309 0:c52df770855b 297 else if ((priv == RW) && (user == NO_ACCESS)) { ap = 0x1; }
jhon309 0:c52df770855b 298 else if ((priv == RW) && (user == READ)) { ap = 0x2; }
jhon309 0:c52df770855b 299 else if ((priv == RW) && (user == RW)) { ap = 0x3; }
jhon309 0:c52df770855b 300 else if ((priv == READ) && (user == NO_ACCESS)) { ap = 0x5; }
jhon309 0:c52df770855b 301 else if ((priv == READ) && (user == READ)) { ap = 0x6; }
jhon309 0:c52df770855b 302 }
jhon309 0:c52df770855b 303
jhon309 0:c52df770855b 304 else { //Simplified access
jhon309 0:c52df770855b 305 if ((priv == RW) && (user == NO_ACCESS)) { ap = 0x1; }
jhon309 0:c52df770855b 306 else if ((priv == RW) && (user == RW)) { ap = 0x3; }
jhon309 0:c52df770855b 307 else if ((priv == READ) && (user == NO_ACCESS)) { ap = 0x5; }
jhon309 0:c52df770855b 308 else if ((priv == READ) && (user == READ)) { ap = 0x7; }
jhon309 0:c52df770855b 309 }
jhon309 0:c52df770855b 310
jhon309 0:c52df770855b 311 *descriptor_l1 &= SECTION_AP_MASK;
jhon309 0:c52df770855b 312 *descriptor_l1 |= (ap & 0x3) << SECTION_AP_SHIFT;
jhon309 0:c52df770855b 313 *descriptor_l1 |= ((ap & 0x4)>>2) << SECTION_AP2_SHIFT;
jhon309 0:c52df770855b 314
jhon309 0:c52df770855b 315 return 0;
jhon309 0:c52df770855b 316 }
jhon309 0:c52df770855b 317
jhon309 0:c52df770855b 318 /** \brief Set section shareability
jhon309 0:c52df770855b 319
jhon309 0:c52df770855b 320 The function sets section shareability
jhon309 0:c52df770855b 321
jhon309 0:c52df770855b 322 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 323 \param [in] s_bit Section shareability: NON_SHARED, SHARED
jhon309 0:c52df770855b 324
jhon309 0:c52df770855b 325 \return 0
jhon309 0:c52df770855b 326 */
jhon309 0:c52df770855b 327 __STATIC_INLINE int __shared_section(uint32_t *descriptor_l1, mmu_shared_Type s_bit)
jhon309 0:c52df770855b 328 {
jhon309 0:c52df770855b 329 *descriptor_l1 &= SECTION_S_MASK;
jhon309 0:c52df770855b 330 *descriptor_l1 |= ((s_bit & 0x1) << SECTION_S_SHIFT);
jhon309 0:c52df770855b 331 return 0;
jhon309 0:c52df770855b 332 }
jhon309 0:c52df770855b 333
jhon309 0:c52df770855b 334 /** \brief Set section Global attribute
jhon309 0:c52df770855b 335
jhon309 0:c52df770855b 336 The function sets section Global attribute
jhon309 0:c52df770855b 337
jhon309 0:c52df770855b 338 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 339 \param [in] g_bit Section attribute: GLOBAL, NON_GLOBAL
jhon309 0:c52df770855b 340
jhon309 0:c52df770855b 341 \return 0
jhon309 0:c52df770855b 342 */
jhon309 0:c52df770855b 343 __STATIC_INLINE int __global_section(uint32_t *descriptor_l1, mmu_global_Type g_bit)
jhon309 0:c52df770855b 344 {
jhon309 0:c52df770855b 345 *descriptor_l1 &= SECTION_NG_MASK;
jhon309 0:c52df770855b 346 *descriptor_l1 |= ((g_bit & 0x1) << SECTION_NG_SHIFT);
jhon309 0:c52df770855b 347 return 0;
jhon309 0:c52df770855b 348 }
jhon309 0:c52df770855b 349
jhon309 0:c52df770855b 350 /** \brief Set section Security attribute
jhon309 0:c52df770855b 351
jhon309 0:c52df770855b 352 The function sets section Global attribute
jhon309 0:c52df770855b 353
jhon309 0:c52df770855b 354 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 355 \param [in] s_bit Section Security attribute: SECURE, NON_SECURE
jhon309 0:c52df770855b 356
jhon309 0:c52df770855b 357 \return 0
jhon309 0:c52df770855b 358 */
jhon309 0:c52df770855b 359 __STATIC_INLINE int __secure_section(uint32_t *descriptor_l1, mmu_secure_Type s_bit)
jhon309 0:c52df770855b 360 {
jhon309 0:c52df770855b 361 *descriptor_l1 &= SECTION_NS_MASK;
jhon309 0:c52df770855b 362 *descriptor_l1 |= ((s_bit & 0x1) << SECTION_NS_SHIFT);
jhon309 0:c52df770855b 363 return 0;
jhon309 0:c52df770855b 364 }
jhon309 0:c52df770855b 365
jhon309 0:c52df770855b 366 /* Page 4k or 64k */
jhon309 0:c52df770855b 367 /** \brief Set 4k/64k page execution-never attribute
jhon309 0:c52df770855b 368
jhon309 0:c52df770855b 369 The function sets 4k/64k page execution-never attribute
jhon309 0:c52df770855b 370
jhon309 0:c52df770855b 371 \param [out] descriptor_l2 L2 descriptor.
jhon309 0:c52df770855b 372 \param [in] xn Page execution-never attribute : EXECUTE , NON_EXECUTE.
jhon309 0:c52df770855b 373 \param [in] page Page size: PAGE_4k, PAGE_64k,
jhon309 0:c52df770855b 374
jhon309 0:c52df770855b 375 \return 0
jhon309 0:c52df770855b 376 */
jhon309 0:c52df770855b 377 __STATIC_INLINE int __xn_page(uint32_t *descriptor_l2, mmu_execute_Type xn, mmu_region_size_Type page)
jhon309 0:c52df770855b 378 {
jhon309 0:c52df770855b 379 if (page == PAGE_4k)
jhon309 0:c52df770855b 380 {
jhon309 0:c52df770855b 381 *descriptor_l2 &= PAGE_XN_4K_MASK;
jhon309 0:c52df770855b 382 *descriptor_l2 |= ((xn & 0x1) << PAGE_XN_4K_SHIFT);
jhon309 0:c52df770855b 383 }
jhon309 0:c52df770855b 384 else
jhon309 0:c52df770855b 385 {
jhon309 0:c52df770855b 386 *descriptor_l2 &= PAGE_XN_64K_MASK;
jhon309 0:c52df770855b 387 *descriptor_l2 |= ((xn & 0x1) << PAGE_XN_64K_SHIFT);
jhon309 0:c52df770855b 388 }
jhon309 0:c52df770855b 389 return 0;
jhon309 0:c52df770855b 390 }
jhon309 0:c52df770855b 391
jhon309 0:c52df770855b 392 /** \brief Set 4k/64k page domain
jhon309 0:c52df770855b 393
jhon309 0:c52df770855b 394 The function sets 4k/64k page domain
jhon309 0:c52df770855b 395
jhon309 0:c52df770855b 396 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 397 \param [in] domain Page domain
jhon309 0:c52df770855b 398
jhon309 0:c52df770855b 399 \return 0
jhon309 0:c52df770855b 400 */
jhon309 0:c52df770855b 401 __STATIC_INLINE int __domain_page(uint32_t *descriptor_l1, uint8_t domain)
jhon309 0:c52df770855b 402 {
jhon309 0:c52df770855b 403 *descriptor_l1 &= PAGE_DOMAIN_MASK;
jhon309 0:c52df770855b 404 *descriptor_l1 |= ((domain & 0xf) << PAGE_DOMAIN_SHIFT);
jhon309 0:c52df770855b 405 return 0;
jhon309 0:c52df770855b 406 }
jhon309 0:c52df770855b 407
jhon309 0:c52df770855b 408 /** \brief Set 4k/64k page parity check
jhon309 0:c52df770855b 409
jhon309 0:c52df770855b 410 The function sets 4k/64k page parity check
jhon309 0:c52df770855b 411
jhon309 0:c52df770855b 412 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 413 \param [in] p_bit Parity check: ECC_DISABLED, ECC_ENABLED
jhon309 0:c52df770855b 414
jhon309 0:c52df770855b 415 \return 0
jhon309 0:c52df770855b 416 */
jhon309 0:c52df770855b 417 __STATIC_INLINE int __p_page(uint32_t *descriptor_l1, mmu_ecc_check_Type p_bit)
jhon309 0:c52df770855b 418 {
jhon309 0:c52df770855b 419 *descriptor_l1 &= SECTION_P_MASK;
jhon309 0:c52df770855b 420 *descriptor_l1 |= ((p_bit & 0x1) << SECTION_P_SHIFT);
jhon309 0:c52df770855b 421 return 0;
jhon309 0:c52df770855b 422 }
jhon309 0:c52df770855b 423
jhon309 0:c52df770855b 424 /** \brief Set 4k/64k page access privileges
jhon309 0:c52df770855b 425
jhon309 0:c52df770855b 426 The function sets 4k/64k page access privileges
jhon309 0:c52df770855b 427
jhon309 0:c52df770855b 428 \param [out] descriptor_l2 L2 descriptor.
jhon309 0:c52df770855b 429 \param [in] user User Level Access: NO_ACCESS, RW, READ
jhon309 0:c52df770855b 430 \param [in] priv Privilege Level Access: NO_ACCESS, RW, READ
jhon309 0:c52df770855b 431 \param [in] afe Access flag enable
jhon309 0:c52df770855b 432
jhon309 0:c52df770855b 433 \return 0
jhon309 0:c52df770855b 434 */
jhon309 0:c52df770855b 435 __STATIC_INLINE int __ap_page(uint32_t *descriptor_l2, mmu_access_Type user, mmu_access_Type priv, uint32_t afe)
jhon309 0:c52df770855b 436 {
jhon309 0:c52df770855b 437 uint32_t ap = 0;
jhon309 0:c52df770855b 438
jhon309 0:c52df770855b 439 if (afe == 0) { //full access
jhon309 0:c52df770855b 440 if ((priv == NO_ACCESS) && (user == NO_ACCESS)) { ap = 0x0; }
jhon309 0:c52df770855b 441 else if ((priv == RW) && (user == NO_ACCESS)) { ap = 0x1; }
jhon309 0:c52df770855b 442 else if ((priv == RW) && (user == READ)) { ap = 0x2; }
jhon309 0:c52df770855b 443 else if ((priv == RW) && (user == RW)) { ap = 0x3; }
jhon309 0:c52df770855b 444 else if ((priv == READ) && (user == NO_ACCESS)) { ap = 0x5; }
jhon309 0:c52df770855b 445 else if ((priv == READ) && (user == READ)) { ap = 0x6; }
jhon309 0:c52df770855b 446 }
jhon309 0:c52df770855b 447
jhon309 0:c52df770855b 448 else { //Simplified access
jhon309 0:c52df770855b 449 if ((priv == RW) && (user == NO_ACCESS)) { ap = 0x1; }
jhon309 0:c52df770855b 450 else if ((priv == RW) && (user == RW)) { ap = 0x3; }
jhon309 0:c52df770855b 451 else if ((priv == READ) && (user == NO_ACCESS)) { ap = 0x5; }
jhon309 0:c52df770855b 452 else if ((priv == READ) && (user == READ)) { ap = 0x7; }
jhon309 0:c52df770855b 453 }
jhon309 0:c52df770855b 454
jhon309 0:c52df770855b 455 *descriptor_l2 &= PAGE_AP_MASK;
jhon309 0:c52df770855b 456 *descriptor_l2 |= (ap & 0x3) << PAGE_AP_SHIFT;
jhon309 0:c52df770855b 457 *descriptor_l2 |= ((ap & 0x4)>>2) << PAGE_AP2_SHIFT;
jhon309 0:c52df770855b 458
jhon309 0:c52df770855b 459 return 0;
jhon309 0:c52df770855b 460 }
jhon309 0:c52df770855b 461
jhon309 0:c52df770855b 462 /** \brief Set 4k/64k page shareability
jhon309 0:c52df770855b 463
jhon309 0:c52df770855b 464 The function sets 4k/64k page shareability
jhon309 0:c52df770855b 465
jhon309 0:c52df770855b 466 \param [out] descriptor_l2 L2 descriptor.
jhon309 0:c52df770855b 467 \param [in] s_bit 4k/64k page shareability: NON_SHARED, SHARED
jhon309 0:c52df770855b 468
jhon309 0:c52df770855b 469 \return 0
jhon309 0:c52df770855b 470 */
jhon309 0:c52df770855b 471 __STATIC_INLINE int __shared_page(uint32_t *descriptor_l2, mmu_shared_Type s_bit)
jhon309 0:c52df770855b 472 {
jhon309 0:c52df770855b 473 *descriptor_l2 &= PAGE_S_MASK;
jhon309 0:c52df770855b 474 *descriptor_l2 |= ((s_bit & 0x1) << PAGE_S_SHIFT);
jhon309 0:c52df770855b 475 return 0;
jhon309 0:c52df770855b 476 }
jhon309 0:c52df770855b 477
jhon309 0:c52df770855b 478 /** \brief Set 4k/64k page Global attribute
jhon309 0:c52df770855b 479
jhon309 0:c52df770855b 480 The function sets 4k/64k page Global attribute
jhon309 0:c52df770855b 481
jhon309 0:c52df770855b 482 \param [out] descriptor_l2 L2 descriptor.
jhon309 0:c52df770855b 483 \param [in] g_bit 4k/64k page attribute: GLOBAL, NON_GLOBAL
jhon309 0:c52df770855b 484
jhon309 0:c52df770855b 485 \return 0
jhon309 0:c52df770855b 486 */
jhon309 0:c52df770855b 487 __STATIC_INLINE int __global_page(uint32_t *descriptor_l2, mmu_global_Type g_bit)
jhon309 0:c52df770855b 488 {
jhon309 0:c52df770855b 489 *descriptor_l2 &= PAGE_NG_MASK;
jhon309 0:c52df770855b 490 *descriptor_l2 |= ((g_bit & 0x1) << PAGE_NG_SHIFT);
jhon309 0:c52df770855b 491 return 0;
jhon309 0:c52df770855b 492 }
jhon309 0:c52df770855b 493
jhon309 0:c52df770855b 494 /** \brief Set 4k/64k page Security attribute
jhon309 0:c52df770855b 495
jhon309 0:c52df770855b 496 The function sets 4k/64k page Global attribute
jhon309 0:c52df770855b 497
jhon309 0:c52df770855b 498 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 499 \param [in] s_bit 4k/64k page Security attribute: SECURE, NON_SECURE
jhon309 0:c52df770855b 500
jhon309 0:c52df770855b 501 \return 0
jhon309 0:c52df770855b 502 */
jhon309 0:c52df770855b 503 __STATIC_INLINE int __secure_page(uint32_t *descriptor_l1, mmu_secure_Type s_bit)
jhon309 0:c52df770855b 504 {
jhon309 0:c52df770855b 505 *descriptor_l1 &= PAGE_NS_MASK;
jhon309 0:c52df770855b 506 *descriptor_l1 |= ((s_bit & 0x1) << PAGE_NS_SHIFT);
jhon309 0:c52df770855b 507 return 0;
jhon309 0:c52df770855b 508 }
jhon309 0:c52df770855b 509
jhon309 0:c52df770855b 510
jhon309 0:c52df770855b 511 /** \brief Set Section memory attributes
jhon309 0:c52df770855b 512
jhon309 0:c52df770855b 513 The function sets section memory attributes
jhon309 0:c52df770855b 514
jhon309 0:c52df770855b 515 \param [out] descriptor_l1 L1 descriptor.
jhon309 0:c52df770855b 516 \param [in] mem Section memory type: NORMAL, DEVICE, SHARED_DEVICE, NON_SHARED_DEVICE, STRONGLY_ORDERED
jhon309 0:c52df770855b 517 \param [in] outer Outer cacheability: NON_CACHEABLE, WB_WA, WT, WB_NO_WA,
jhon309 0:c52df770855b 518 \param [in] inner Inner cacheability: NON_CACHEABLE, WB_WA, WT, WB_NO_WA,
jhon309 0:c52df770855b 519
jhon309 0:c52df770855b 520 \return 0
jhon309 0:c52df770855b 521 */
jhon309 0:c52df770855b 522 __STATIC_INLINE int __memory_section(uint32_t *descriptor_l1, mmu_memory_Type mem, mmu_cacheability_Type outer, mmu_cacheability_Type inner)
jhon309 0:c52df770855b 523 {
jhon309 0:c52df770855b 524 *descriptor_l1 &= SECTION_TEXCB_MASK;
jhon309 0:c52df770855b 525
jhon309 0:c52df770855b 526 if (STRONGLY_ORDERED == mem)
jhon309 0:c52df770855b 527 {
jhon309 0:c52df770855b 528 return 0;
jhon309 0:c52df770855b 529 }
jhon309 0:c52df770855b 530 else if (SHARED_DEVICE == mem)
jhon309 0:c52df770855b 531 {
jhon309 0:c52df770855b 532 *descriptor_l1 |= (1 << SECTION_B_SHIFT);
jhon309 0:c52df770855b 533 }
jhon309 0:c52df770855b 534 else if (NON_SHARED_DEVICE == mem)
jhon309 0:c52df770855b 535 {
jhon309 0:c52df770855b 536 *descriptor_l1 |= (1 << SECTION_TEX1_SHIFT);
jhon309 0:c52df770855b 537 }
jhon309 0:c52df770855b 538 else if (NORMAL == mem)
jhon309 0:c52df770855b 539 {
jhon309 0:c52df770855b 540 *descriptor_l1 |= 1 << SECTION_TEX2_SHIFT;
jhon309 0:c52df770855b 541 switch(inner)
jhon309 0:c52df770855b 542 {
jhon309 0:c52df770855b 543 case NON_CACHEABLE:
jhon309 0:c52df770855b 544 break;
jhon309 0:c52df770855b 545 case WB_WA:
jhon309 0:c52df770855b 546 *descriptor_l1 |= (1 << SECTION_B_SHIFT);
jhon309 0:c52df770855b 547 break;
jhon309 0:c52df770855b 548 case WT:
jhon309 0:c52df770855b 549 *descriptor_l1 |= 1 << SECTION_C_SHIFT;
jhon309 0:c52df770855b 550 break;
jhon309 0:c52df770855b 551 case WB_NO_WA:
jhon309 0:c52df770855b 552 *descriptor_l1 |= (1 << SECTION_B_SHIFT) | (1 << SECTION_C_SHIFT);
jhon309 0:c52df770855b 553 break;
jhon309 0:c52df770855b 554 }
jhon309 0:c52df770855b 555 switch(outer)
jhon309 0:c52df770855b 556 {
jhon309 0:c52df770855b 557 case NON_CACHEABLE:
jhon309 0:c52df770855b 558 break;
jhon309 0:c52df770855b 559 case WB_WA:
jhon309 0:c52df770855b 560 *descriptor_l1 |= (1 << SECTION_TEX0_SHIFT);
jhon309 0:c52df770855b 561 break;
jhon309 0:c52df770855b 562 case WT:
jhon309 0:c52df770855b 563 *descriptor_l1 |= 1 << SECTION_TEX1_SHIFT;
jhon309 0:c52df770855b 564 break;
jhon309 0:c52df770855b 565 case WB_NO_WA:
jhon309 0:c52df770855b 566 *descriptor_l1 |= (1 << SECTION_TEX0_SHIFT) | (1 << SECTION_TEX0_SHIFT);
jhon309 0:c52df770855b 567 break;
jhon309 0:c52df770855b 568 }
jhon309 0:c52df770855b 569 }
jhon309 0:c52df770855b 570
jhon309 0:c52df770855b 571 return 0;
jhon309 0:c52df770855b 572 }
jhon309 0:c52df770855b 573
jhon309 0:c52df770855b 574 /** \brief Set 4k/64k page memory attributes
jhon309 0:c52df770855b 575
jhon309 0:c52df770855b 576 The function sets 4k/64k page memory attributes
jhon309 0:c52df770855b 577
jhon309 0:c52df770855b 578 \param [out] descriptor_l2 L2 descriptor.
jhon309 0:c52df770855b 579 \param [in] mem 4k/64k page memory type: NORMAL, DEVICE, SHARED_DEVICE, NON_SHARED_DEVICE, STRONGLY_ORDERED
jhon309 0:c52df770855b 580 \param [in] outer Outer cacheability: NON_CACHEABLE, WB_WA, WT, WB_NO_WA,
jhon309 0:c52df770855b 581 \param [in] inner Inner cacheability: NON_CACHEABLE, WB_WA, WT, WB_NO_WA,
jhon309 0:c52df770855b 582
jhon309 0:c52df770855b 583 \return 0
jhon309 0:c52df770855b 584 */
jhon309 0:c52df770855b 585 __STATIC_INLINE int __memory_page(uint32_t *descriptor_l2, mmu_memory_Type mem, mmu_cacheability_Type outer, mmu_cacheability_Type inner, mmu_region_size_Type page)
jhon309 0:c52df770855b 586 {
jhon309 0:c52df770855b 587 *descriptor_l2 &= PAGE_4K_TEXCB_MASK;
jhon309 0:c52df770855b 588
jhon309 0:c52df770855b 589 if (page == PAGE_64k)
jhon309 0:c52df770855b 590 {
jhon309 0:c52df770855b 591 //same as section
jhon309 0:c52df770855b 592 __memory_section(descriptor_l2, mem, outer, inner);
jhon309 0:c52df770855b 593 }
jhon309 0:c52df770855b 594 else
jhon309 0:c52df770855b 595 {
jhon309 0:c52df770855b 596 if (STRONGLY_ORDERED == mem)
jhon309 0:c52df770855b 597 {
jhon309 0:c52df770855b 598 return 0;
jhon309 0:c52df770855b 599 }
jhon309 0:c52df770855b 600 else if (SHARED_DEVICE == mem)
jhon309 0:c52df770855b 601 {
jhon309 0:c52df770855b 602 *descriptor_l2 |= (1 << PAGE_4K_B_SHIFT);
jhon309 0:c52df770855b 603 }
jhon309 0:c52df770855b 604 else if (NON_SHARED_DEVICE == mem)
jhon309 0:c52df770855b 605 {
jhon309 0:c52df770855b 606 *descriptor_l2 |= (1 << PAGE_4K_TEX1_SHIFT);
jhon309 0:c52df770855b 607 }
jhon309 0:c52df770855b 608 else if (NORMAL == mem)
jhon309 0:c52df770855b 609 {
jhon309 0:c52df770855b 610 *descriptor_l2 |= 1 << PAGE_4K_TEX2_SHIFT;
jhon309 0:c52df770855b 611 switch(inner)
jhon309 0:c52df770855b 612 {
jhon309 0:c52df770855b 613 case NON_CACHEABLE:
jhon309 0:c52df770855b 614 break;
jhon309 0:c52df770855b 615 case WB_WA:
jhon309 0:c52df770855b 616 *descriptor_l2 |= (1 << PAGE_4K_B_SHIFT);
jhon309 0:c52df770855b 617 break;
jhon309 0:c52df770855b 618 case WT:
jhon309 0:c52df770855b 619 *descriptor_l2 |= 1 << PAGE_4K_C_SHIFT;
jhon309 0:c52df770855b 620 break;
jhon309 0:c52df770855b 621 case WB_NO_WA:
jhon309 0:c52df770855b 622 *descriptor_l2 |= (1 << PAGE_4K_B_SHIFT) | (1 << PAGE_4K_C_SHIFT);
jhon309 0:c52df770855b 623 break;
jhon309 0:c52df770855b 624 }
jhon309 0:c52df770855b 625 switch(outer)
jhon309 0:c52df770855b 626 {
jhon309 0:c52df770855b 627 case NON_CACHEABLE:
jhon309 0:c52df770855b 628 break;
jhon309 0:c52df770855b 629 case WB_WA:
jhon309 0:c52df770855b 630 *descriptor_l2 |= (1 << PAGE_4K_TEX0_SHIFT);
jhon309 0:c52df770855b 631 break;
jhon309 0:c52df770855b 632 case WT:
jhon309 0:c52df770855b 633 *descriptor_l2 |= 1 << PAGE_4K_TEX1_SHIFT;
jhon309 0:c52df770855b 634 break;
jhon309 0:c52df770855b 635 case WB_NO_WA:
jhon309 0:c52df770855b 636 *descriptor_l2 |= (1 << PAGE_4K_TEX0_SHIFT) | (1 << PAGE_4K_TEX0_SHIFT);
jhon309 0:c52df770855b 637 break;
jhon309 0:c52df770855b 638 }
jhon309 0:c52df770855b 639 }
jhon309 0:c52df770855b 640 }
jhon309 0:c52df770855b 641
jhon309 0:c52df770855b 642 return 0;
jhon309 0:c52df770855b 643 }
jhon309 0:c52df770855b 644
jhon309 0:c52df770855b 645 /** \brief Create a L1 section descriptor
jhon309 0:c52df770855b 646
jhon309 0:c52df770855b 647 The function creates a section descriptor.
jhon309 0:c52df770855b 648
jhon309 0:c52df770855b 649 Assumptions:
jhon309 0:c52df770855b 650 - 16MB super sections not suported
jhon309 0:c52df770855b 651 - TEX remap disabled, so memory type and attributes are described directly by bits in the descriptor
jhon309 0:c52df770855b 652 - Functions always return 0
jhon309 0:c52df770855b 653
jhon309 0:c52df770855b 654 \param [out] descriptor L1 descriptor
jhon309 0:c52df770855b 655 \param [out] descriptor2 L2 descriptor
jhon309 0:c52df770855b 656 \param [in] reg Section attributes
jhon309 0:c52df770855b 657
jhon309 0:c52df770855b 658 \return 0
jhon309 0:c52df770855b 659 */
jhon309 0:c52df770855b 660 __STATIC_INLINE int __get_section_descriptor(uint32_t *descriptor, mmu_region_attributes_Type reg)
jhon309 0:c52df770855b 661 {
jhon309 0:c52df770855b 662 *descriptor = 0;
jhon309 0:c52df770855b 663
jhon309 0:c52df770855b 664 __memory_section(descriptor, reg.mem_t, reg.outer_norm_t, reg.inner_norm_t);
jhon309 0:c52df770855b 665 __xn_section(descriptor,reg.xn_t);
jhon309 0:c52df770855b 666 __domain_section(descriptor, reg.domain);
jhon309 0:c52df770855b 667 __p_section(descriptor, reg.e_t);
jhon309 0:c52df770855b 668 __ap_section(descriptor, reg.priv_t, reg.user_t, 1);
jhon309 0:c52df770855b 669 __shared_section(descriptor,reg.sh_t);
jhon309 0:c52df770855b 670 __global_section(descriptor,reg.g_t);
jhon309 0:c52df770855b 671 __secure_section(descriptor,reg.sec_t);
jhon309 0:c52df770855b 672 *descriptor &= SECTION_MASK;
jhon309 0:c52df770855b 673 *descriptor |= SECTION_DESCRIPTOR;
jhon309 0:c52df770855b 674
jhon309 0:c52df770855b 675 return 0;
jhon309 0:c52df770855b 676
jhon309 0:c52df770855b 677 }
jhon309 0:c52df770855b 678
jhon309 0:c52df770855b 679
jhon309 0:c52df770855b 680 /** \brief Create a L1 and L2 4k/64k page descriptor
jhon309 0:c52df770855b 681
jhon309 0:c52df770855b 682 The function creates a 4k/64k page descriptor.
jhon309 0:c52df770855b 683 Assumptions:
jhon309 0:c52df770855b 684 - TEX remap disabled, so memory type and attributes are described directly by bits in the descriptor
jhon309 0:c52df770855b 685 - Functions always return 0
jhon309 0:c52df770855b 686
jhon309 0:c52df770855b 687 \param [out] descriptor L1 descriptor
jhon309 0:c52df770855b 688 \param [out] descriptor2 L2 descriptor
jhon309 0:c52df770855b 689 \param [in] reg 4k/64k page attributes
jhon309 0:c52df770855b 690
jhon309 0:c52df770855b 691 \return 0
jhon309 0:c52df770855b 692 */
jhon309 0:c52df770855b 693 __STATIC_INLINE int __get_page_descriptor(uint32_t *descriptor, uint32_t *descriptor2, mmu_region_attributes_Type reg)
jhon309 0:c52df770855b 694 {
jhon309 0:c52df770855b 695 *descriptor = 0;
jhon309 0:c52df770855b 696 *descriptor2 = 0;
jhon309 0:c52df770855b 697
jhon309 0:c52df770855b 698 switch (reg.rg_t)
jhon309 0:c52df770855b 699 {
jhon309 0:c52df770855b 700 case PAGE_4k:
jhon309 0:c52df770855b 701 __memory_page(descriptor2, reg.mem_t, reg.outer_norm_t, reg.inner_norm_t, PAGE_4k);
jhon309 0:c52df770855b 702 __xn_page(descriptor2, reg.xn_t, PAGE_4k);
jhon309 0:c52df770855b 703 __domain_page(descriptor, reg.domain);
jhon309 0:c52df770855b 704 __p_page(descriptor, reg.e_t);
jhon309 0:c52df770855b 705 __ap_page(descriptor2, reg.priv_t, reg.user_t, 1);
jhon309 0:c52df770855b 706 __shared_page(descriptor2,reg.sh_t);
jhon309 0:c52df770855b 707 __global_page(descriptor2,reg.g_t);
jhon309 0:c52df770855b 708 __secure_page(descriptor,reg.sec_t);
jhon309 0:c52df770855b 709 *descriptor &= PAGE_L1_MASK;
jhon309 0:c52df770855b 710 *descriptor |= PAGE_L1_DESCRIPTOR;
jhon309 0:c52df770855b 711 *descriptor2 &= PAGE_L2_4K_MASK;
jhon309 0:c52df770855b 712 *descriptor2 |= PAGE_L2_4K_DESC;
jhon309 0:c52df770855b 713 break;
jhon309 0:c52df770855b 714
jhon309 0:c52df770855b 715 case PAGE_64k:
jhon309 0:c52df770855b 716 __memory_page(descriptor2, reg.mem_t, reg.outer_norm_t, reg.inner_norm_t, PAGE_64k);
jhon309 0:c52df770855b 717 __xn_page(descriptor2, reg.xn_t, PAGE_64k);
jhon309 0:c52df770855b 718 __domain_page(descriptor, reg.domain);
jhon309 0:c52df770855b 719 __p_page(descriptor, reg.e_t);
jhon309 0:c52df770855b 720 __ap_page(descriptor2, reg.priv_t, reg.user_t, 1);
jhon309 0:c52df770855b 721 __shared_page(descriptor2,reg.sh_t);
jhon309 0:c52df770855b 722 __global_page(descriptor2,reg.g_t);
jhon309 0:c52df770855b 723 __secure_page(descriptor,reg.sec_t);
jhon309 0:c52df770855b 724 *descriptor &= PAGE_L1_MASK;
jhon309 0:c52df770855b 725 *descriptor |= PAGE_L1_DESCRIPTOR;
jhon309 0:c52df770855b 726 *descriptor2 &= PAGE_L2_64K_MASK;
jhon309 0:c52df770855b 727 *descriptor2 |= PAGE_L2_64K_DESC;
jhon309 0:c52df770855b 728 break;
jhon309 0:c52df770855b 729
jhon309 0:c52df770855b 730 case SECTION:
jhon309 0:c52df770855b 731 //error
jhon309 0:c52df770855b 732 break;
jhon309 0:c52df770855b 733
jhon309 0:c52df770855b 734 }
jhon309 0:c52df770855b 735
jhon309 0:c52df770855b 736 return 0;
jhon309 0:c52df770855b 737
jhon309 0:c52df770855b 738 }
jhon309 0:c52df770855b 739
jhon309 0:c52df770855b 740 /** \brief Create a 1MB Section
jhon309 0:c52df770855b 741
jhon309 0:c52df770855b 742 \param [in] ttb Translation table base address
jhon309 0:c52df770855b 743 \param [in] base_address Section base address
jhon309 0:c52df770855b 744 \param [in] count Number of sections to create
jhon309 0:c52df770855b 745 \param [in] descriptor_l1 L1 descriptor (region attributes)
jhon309 0:c52df770855b 746
jhon309 0:c52df770855b 747 */
jhon309 0:c52df770855b 748 __STATIC_INLINE void __TTSection(uint32_t *ttb, uint32_t base_address, uint32_t count, uint32_t descriptor_l1)
jhon309 0:c52df770855b 749 {
jhon309 0:c52df770855b 750 uint32_t offset;
jhon309 0:c52df770855b 751 uint32_t entry;
jhon309 0:c52df770855b 752 uint32_t i;
jhon309 0:c52df770855b 753
jhon309 0:c52df770855b 754 offset = base_address >> 20;
jhon309 0:c52df770855b 755 entry = (base_address & 0xFFF00000) | descriptor_l1;
jhon309 0:c52df770855b 756
jhon309 0:c52df770855b 757 //4 bytes aligned
jhon309 0:c52df770855b 758 ttb = ttb + offset;
jhon309 0:c52df770855b 759
jhon309 0:c52df770855b 760 for (i = 0; i < count; i++ )
jhon309 0:c52df770855b 761 {
jhon309 0:c52df770855b 762 //4 bytes aligned
jhon309 0:c52df770855b 763 *ttb++ = entry;
jhon309 0:c52df770855b 764 entry += OFFSET_1M;
jhon309 0:c52df770855b 765 }
jhon309 0:c52df770855b 766 }
jhon309 0:c52df770855b 767
jhon309 0:c52df770855b 768 /** \brief Create a 4k page entry
jhon309 0:c52df770855b 769
jhon309 0:c52df770855b 770 \param [in] ttb L1 table base address
jhon309 0:c52df770855b 771 \param [in] base_address 4k base address
jhon309 0:c52df770855b 772 \param [in] count Number of 4k pages to create
jhon309 0:c52df770855b 773 \param [in] descriptor_l1 L1 descriptor (region attributes)
jhon309 0:c52df770855b 774 \param [in] ttb_l2 L2 table base address
jhon309 0:c52df770855b 775 \param [in] descriptor_l2 L2 descriptor (region attributes)
jhon309 0:c52df770855b 776
jhon309 0:c52df770855b 777 */
jhon309 0:c52df770855b 778 __STATIC_INLINE void __TTPage_4k(uint32_t *ttb, uint32_t base_address, uint32_t count, uint32_t descriptor_l1, uint32_t *ttb_l2, uint32_t descriptor_l2 )
jhon309 0:c52df770855b 779 {
jhon309 0:c52df770855b 780
jhon309 0:c52df770855b 781 uint32_t offset, offset2;
jhon309 0:c52df770855b 782 uint32_t entry, entry2;
jhon309 0:c52df770855b 783 uint32_t i;
jhon309 0:c52df770855b 784
jhon309 0:c52df770855b 785
jhon309 0:c52df770855b 786 offset = base_address >> 20;
jhon309 0:c52df770855b 787 entry = ((int)ttb_l2 & 0xFFFFFC00) | descriptor_l1;
jhon309 0:c52df770855b 788
jhon309 0:c52df770855b 789 //4 bytes aligned
jhon309 0:c52df770855b 790 ttb += offset;
jhon309 0:c52df770855b 791 //create l1_entry
jhon309 0:c52df770855b 792 *ttb = entry;
jhon309 0:c52df770855b 793
jhon309 0:c52df770855b 794 offset2 = (base_address & 0xff000) >> 12;
jhon309 0:c52df770855b 795 ttb_l2 += offset2;
jhon309 0:c52df770855b 796 entry2 = (base_address & 0xFFFFF000) | descriptor_l2;
jhon309 0:c52df770855b 797 for (i = 0; i < count; i++ )
jhon309 0:c52df770855b 798 {
jhon309 0:c52df770855b 799 //4 bytes aligned
jhon309 0:c52df770855b 800 *ttb_l2++ = entry2;
jhon309 0:c52df770855b 801 entry2 += OFFSET_4K;
jhon309 0:c52df770855b 802 }
jhon309 0:c52df770855b 803 }
jhon309 0:c52df770855b 804
jhon309 0:c52df770855b 805 /** \brief Create a 64k page entry
jhon309 0:c52df770855b 806
jhon309 0:c52df770855b 807 \param [in] ttb L1 table base address
jhon309 0:c52df770855b 808 \param [in] base_address 64k base address
jhon309 0:c52df770855b 809 \param [in] count Number of 64k pages to create
jhon309 0:c52df770855b 810 \param [in] descriptor_l1 L1 descriptor (region attributes)
jhon309 0:c52df770855b 811 \param [in] ttb_l2 L2 table base address
jhon309 0:c52df770855b 812 \param [in] descriptor_l2 L2 descriptor (region attributes)
jhon309 0:c52df770855b 813
jhon309 0:c52df770855b 814 */
jhon309 0:c52df770855b 815 __STATIC_INLINE void __TTPage_64k(uint32_t *ttb, uint32_t base_address, uint32_t count, uint32_t descriptor_l1, uint32_t *ttb_l2, uint32_t descriptor_l2 )
jhon309 0:c52df770855b 816 {
jhon309 0:c52df770855b 817 uint32_t offset, offset2;
jhon309 0:c52df770855b 818 uint32_t entry, entry2;
jhon309 0:c52df770855b 819 uint32_t i,j;
jhon309 0:c52df770855b 820
jhon309 0:c52df770855b 821
jhon309 0:c52df770855b 822 offset = base_address >> 20;
jhon309 0:c52df770855b 823 entry = ((int)ttb_l2 & 0xFFFFFC00) | descriptor_l1;
jhon309 0:c52df770855b 824
jhon309 0:c52df770855b 825 //4 bytes aligned
jhon309 0:c52df770855b 826 ttb += offset;
jhon309 0:c52df770855b 827 //create l1_entry
jhon309 0:c52df770855b 828 *ttb = entry;
jhon309 0:c52df770855b 829
jhon309 0:c52df770855b 830 offset2 = (base_address & 0xff000) >> 12;
jhon309 0:c52df770855b 831 ttb_l2 += offset2;
jhon309 0:c52df770855b 832 entry2 = (base_address & 0xFFFF0000) | descriptor_l2;
jhon309 0:c52df770855b 833 for (i = 0; i < count; i++ )
jhon309 0:c52df770855b 834 {
jhon309 0:c52df770855b 835 //create 16 entries
jhon309 0:c52df770855b 836 for (j = 0; j < 16; j++)
jhon309 0:c52df770855b 837 //4 bytes aligned
jhon309 0:c52df770855b 838 *ttb_l2++ = entry2;
jhon309 0:c52df770855b 839 entry2 += OFFSET_64K;
jhon309 0:c52df770855b 840 }
jhon309 0:c52df770855b 841 }
jhon309 0:c52df770855b 842
jhon309 0:c52df770855b 843 /*@} end of MMU_Functions */
jhon309 0:c52df770855b 844 #endif
jhon309 0:c52df770855b 845
jhon309 0:c52df770855b 846 #ifdef __cplusplus
jhon309 0:c52df770855b 847 }
jhon309 0:c52df770855b 848 #endif