Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2014 - 2017 Intel Corporation. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | */ |
| 16 | |
| 17 | #include <stdint.h> |
Kyösti Mälkki | 13f6650 | 2019-03-03 08:01:05 +0200 | [diff] [blame^] | 18 | #include <device/mmio.h> |
Kyösti Mälkki | f1b58b7 | 2019-03-01 13:43:02 +0200 | [diff] [blame] | 19 | #include <device/pci_ops.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 20 | #include <device/pci.h> |
| 21 | #include <device/pci_def.h> |
| 22 | #include <device/device.h> |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 23 | |
| 24 | #include <soc/iomap.h> |
| 25 | #include <soc/soc_util.h> |
| 26 | #include <soc/pmc.h> |
| 27 | #include <soc/smbus.h> |
| 28 | #include <soc/lpc.h> |
| 29 | #include <soc/pci_devs.h> |
| 30 | #include <soc/systemagent.h> |
| 31 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 32 | #ifdef __SIMPLE_DEVICE__ |
| 33 | pci_devfn_t get_hostbridge_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 34 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 35 | return PCI_DEV(0, SA_DEV, SA_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 36 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 37 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 38 | struct device *get_hostbridge_dev(void) |
| 39 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 40 | return dev_find_slot(0, PCI_DEVFN(SA_DEV, SA_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 41 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 42 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 43 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 44 | #ifdef __SIMPLE_DEVICE__ |
| 45 | pci_devfn_t get_lpc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 46 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 47 | return PCI_DEV(0, LPC_DEV, LPC_FUNC); |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 48 | } |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 49 | #else |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 50 | struct device *get_lpc_dev(void) |
| 51 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 52 | return dev_find_slot(0, PCI_DEVFN(LPC_DEV, LPC_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 53 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 54 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 55 | |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 56 | #ifdef __SIMPLE_DEVICE__ |
| 57 | pci_devfn_t get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 58 | { |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 59 | return PCI_DEV(0, PMC_DEV, PMC_FUNC); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 60 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 61 | #else |
| 62 | struct device *get_pmc_dev(void) |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 63 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 64 | return dev_find_slot(0, PCI_DEVFN(PMC_DEV, PMC_FUNC)); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 65 | } |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 66 | #endif |
| 67 | |
| 68 | #ifdef __SIMPLE_DEVICE__ |
| 69 | pci_devfn_t get_smbus_dev(void) |
| 70 | { |
| 71 | return PCI_DEV(0, SMBUS_DEV, SMBUS_FUNC); |
| 72 | } |
| 73 | #else |
| 74 | struct device *get_smbus_dev(void) |
| 75 | { |
| 76 | return dev_find_slot(0, PCI_DEVFN(SMBUS_DEV, SMBUS_FUNC)); |
| 77 | } |
| 78 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 79 | |
| 80 | uint32_t get_pciebase(void) |
| 81 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 82 | #ifdef __SIMPLE_DEVICE__ |
| 83 | pci_devfn_t dev; |
| 84 | #else |
| 85 | struct device *dev; |
| 86 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 87 | u32 pciexbar_reg; |
| 88 | |
| 89 | dev = get_hostbridge_dev(); |
| 90 | if (!dev) |
| 91 | return 0; |
| 92 | |
| 93 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 94 | |
| 95 | if (!(pciexbar_reg & (1 << 0))) |
| 96 | return 0; |
| 97 | |
| 98 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 99 | case MASK_PCIEXBAR_LENGTH_256M: |
| 100 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 101 | break; |
| 102 | case MASK_PCIEXBAR_LENGTH_128M: |
| 103 | pciexbar_reg &= MASK_PCIEXBAR_128M; |
| 104 | break; |
| 105 | case MASK_PCIEXBAR_LENGTH_64M: |
| 106 | pciexbar_reg &= MASK_PCIEXBAR_64M; |
| 107 | break; |
| 108 | default: |
| 109 | pciexbar_reg &= MASK_PCIEXBAR_256M; |
| 110 | break; |
| 111 | } |
| 112 | |
| 113 | return pciexbar_reg; |
| 114 | } |
| 115 | |
| 116 | uint32_t get_pcielength(void) |
| 117 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 118 | #ifdef __SIMPLE_DEVICE__ |
| 119 | pci_devfn_t dev; |
| 120 | #else |
| 121 | struct device *dev; |
| 122 | #endif |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 123 | u32 pciexbar_reg; |
| 124 | |
| 125 | dev = get_hostbridge_dev(); |
| 126 | if (!dev) |
| 127 | return 0; |
| 128 | |
| 129 | pciexbar_reg = pci_read_config32(dev, PCIEXBAR); |
| 130 | |
| 131 | if (!(pciexbar_reg & (1 << 0))) |
| 132 | return 0; |
| 133 | |
| 134 | switch (pciexbar_reg & MASK_PCIEXBAR_LENGTH) { |
| 135 | case MASK_PCIEXBAR_LENGTH_256M: |
| 136 | pciexbar_reg = 256; |
| 137 | break; |
| 138 | case MASK_PCIEXBAR_LENGTH_128M: |
| 139 | pciexbar_reg = 128; |
| 140 | break; |
| 141 | case MASK_PCIEXBAR_LENGTH_64M: |
| 142 | pciexbar_reg = 64; |
| 143 | break; |
| 144 | default: |
| 145 | pciexbar_reg = 64; |
| 146 | break; |
| 147 | } |
| 148 | |
| 149 | return pciexbar_reg; |
| 150 | } |
| 151 | |
| 152 | uint32_t get_tseg_memory(void) |
| 153 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 154 | #ifdef __SIMPLE_DEVICE__ |
| 155 | pci_devfn_t dev; |
| 156 | #else |
| 157 | struct device *dev; |
| 158 | #endif |
| 159 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 160 | |
| 161 | if (!dev) |
| 162 | return 0; |
| 163 | |
| 164 | return pci_read_config32(dev, TSEGMB) & MASK_TSEGMB; |
| 165 | } |
| 166 | |
| 167 | uint32_t get_top_of_low_memory(void) |
| 168 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 169 | #ifdef __SIMPLE_DEVICE__ |
| 170 | pci_devfn_t dev; |
| 171 | #else |
| 172 | struct device *dev; |
| 173 | #endif |
| 174 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 175 | |
| 176 | if (!dev) |
| 177 | return 0; |
| 178 | |
| 179 | return pci_read_config32(dev, TOLUD) & MASK_TOLUD; |
| 180 | } |
| 181 | |
| 182 | uint64_t get_top_of_upper_memory(void) |
| 183 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 184 | #ifdef __SIMPLE_DEVICE__ |
| 185 | pci_devfn_t dev; |
| 186 | #else |
| 187 | struct device *dev; |
| 188 | #endif |
| 189 | dev = get_hostbridge_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 190 | |
| 191 | if (!dev) |
| 192 | return 0; |
| 193 | |
| 194 | return ((uint64_t)(pci_read_config32(dev, TOUUD_HI) & MASK_TOUUD_HI) |
| 195 | << 32) + |
| 196 | (uint64_t)(pci_read_config32(dev, TOUUD_LO) & MASK_TOUUD_LO); |
| 197 | } |
| 198 | |
| 199 | uint16_t get_pmbase(void) |
| 200 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 201 | #ifdef __SIMPLE_DEVICE__ |
| 202 | pci_devfn_t dev; |
| 203 | #else |
| 204 | struct device *dev; |
| 205 | #endif |
| 206 | dev = get_pmc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 207 | |
| 208 | if (!dev) |
| 209 | return 0; |
| 210 | |
| 211 | return pci_read_config16(dev, PMC_ACPI_BASE) & 0xfff8; |
| 212 | } |
| 213 | |
| 214 | uint16_t get_tcobase(void) |
| 215 | { |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 216 | #ifdef __SIMPLE_DEVICE__ |
| 217 | pci_devfn_t dev; |
| 218 | #else |
| 219 | struct device *dev; |
| 220 | #endif |
| 221 | dev = get_smbus_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 222 | |
| 223 | if (!dev) |
| 224 | return 0; |
| 225 | |
| 226 | return pci_read_config16(dev, TCOBASE) & MASK_TCOBASE; |
| 227 | } |
| 228 | |
| 229 | void mmio_andthenor32(void *addr, uint32_t val2and, uint32_t val2or) |
| 230 | { |
| 231 | uint32_t reg32; |
| 232 | |
| 233 | reg32 = read32(addr); |
| 234 | reg32 &= (uint32_t)val2and; |
| 235 | reg32 |= (uint32_t)val2or; |
| 236 | write32(addr, reg32); |
| 237 | } |
| 238 | |
| 239 | uint8_t silicon_stepping(void) |
| 240 | { |
| 241 | uint8_t revision_id; |
Elyes HAOUAS | 6f01f43 | 2018-12-05 10:56:30 +0100 | [diff] [blame] | 242 | #ifdef __SIMPLE_DEVICE__ |
| 243 | pci_devfn_t dev; |
| 244 | #else |
| 245 | struct device *dev; |
| 246 | #endif |
| 247 | dev = get_lpc_dev(); |
Mariusz Szafranski | a404133 | 2017-08-02 17:28:17 +0200 | [diff] [blame] | 248 | |
| 249 | if (!dev) |
| 250 | return 0; |
| 251 | |
| 252 | revision_id = pci_read_config8(dev, PCI_REVISION_ID); |
| 253 | |
| 254 | return revision_id; |
| 255 | } |
| 256 | |
| 257 | void *memcpy_s(void *dest, const void *src, size_t n) |
| 258 | { |
| 259 | uint8_t *dp; |
| 260 | const uint8_t *sp; |
| 261 | |
| 262 | dp = (uint8_t *)dest; |
| 263 | sp = (uint8_t *)src; |
| 264 | |
| 265 | if (!n) |
| 266 | return dest; |
| 267 | |
| 268 | if (n > UINT32_MAX) |
| 269 | return dest; |
| 270 | |
| 271 | if (!dp) |
| 272 | return dest; |
| 273 | |
| 274 | if (!sp) |
| 275 | return dest; |
| 276 | |
| 277 | /* |
| 278 | * overlap is undefined behavior, do not allow |
| 279 | */ |
| 280 | if (((dp > sp) && (dp < (sp + n))) || ((sp > dp) && (sp < (dp + n)))) |
| 281 | return dest; |
| 282 | |
| 283 | /* |
| 284 | * now perform the copy |
| 285 | */ |
| 286 | |
| 287 | /* Original memcpy() function */ |
| 288 | unsigned long d0, d1, d2; |
| 289 | |
| 290 | asm volatile( |
| 291 | #ifdef __x86_64__ |
| 292 | "rep ; movsd\n\t" |
| 293 | "mov %4,%%rcx\n\t" |
| 294 | #else |
| 295 | "rep ; movsl\n\t" |
| 296 | "movl %4,%%ecx\n\t" |
| 297 | #endif |
| 298 | "rep ; movsb\n\t" |
| 299 | : "=&c"(d0), "=&D"(d1), "=&S"(d2) |
| 300 | : "0"(n >> 2), "g"(n & 3), "1"(dest), "2"(src) |
| 301 | : "memory"); |
| 302 | |
| 303 | return dest; |
| 304 | } |