Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 1 | /****************************************************************************** |
| 2 | * Copyright (c) 2004, 2008 IBM Corporation |
| 3 | * Copyright (c) 2008, 2009 Pattrick Hueper <phueper@hueper.net> |
Martin Roth | a9e1a22 | 2016-01-14 14:15:24 -0700 | [diff] [blame] | 4 | * |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 5 | * All rights reserved. |
Martin Roth | a9e1a22 | 2016-01-14 14:15:24 -0700 | [diff] [blame] | 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions are |
| 9 | * met: |
| 10 | * |
| 11 | * Redistributions of source code must retain the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer. |
| 13 | * |
| 14 | * Redistributions in binary form must reproduce the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer |
| 16 | * in the documentation and/or other materials provided with the |
| 17 | * distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 23 | * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 30 | * |
| 31 | * Contributors: |
| 32 | * IBM Corporation - initial implementation |
| 33 | *****************************************************************************/ |
| 34 | |
| 35 | |
| 36 | #include "device.h" |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 37 | #include "compat/rtas.h" |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 38 | #include <string.h> |
| 39 | #include "debug.h" |
| 40 | |
| 41 | #include <device/device.h> |
| 42 | #include <device/pci.h> |
| 43 | #include <device/pci_ops.h> |
| 44 | #include <device/resource.h> |
| 45 | |
| 46 | /* the device we are working with... */ |
| 47 | biosemu_device_t bios_device; |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 48 | //max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges, plus 2 "special" memory ranges |
| 49 | translate_address_t translate_address_array[13]; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 50 | u8 taa_last_entry; |
| 51 | |
| 52 | typedef struct { |
| 53 | u8 info; |
| 54 | u8 bus; |
| 55 | u8 devfn; |
| 56 | u8 cfg_space_offset; |
| 57 | u64 address; |
| 58 | u64 size; |
Stefan Reinauer | 6a00113 | 2017-07-13 02:20:27 +0200 | [diff] [blame] | 59 | } __packed assigned_address_t; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 60 | |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 61 | #if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 62 | /* coreboot version */ |
| 63 | |
Uwe Hermann | 01ce601 | 2010-03-05 10:03:50 +0000 | [diff] [blame] | 64 | static void |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 65 | biosemu_dev_get_addr_info(void) |
| 66 | { |
| 67 | int taa_index = 0; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 68 | struct resource *r; |
Myles Watson | bd61a81 | 2010-08-30 21:52:38 +0000 | [diff] [blame] | 69 | u8 bus = bios_device.dev->bus->secondary; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 70 | u16 devfn = bios_device.dev->path.pci.devfn; |
| 71 | |
| 72 | bios_device.bus = bus; |
| 73 | bios_device.devfn = devfn; |
| 74 | |
| 75 | DEBUG_PRINTF("bus: %x, devfn: %x\n", bus, devfn); |
Myles Watson | c25cc11 | 2010-05-21 14:33:48 +0000 | [diff] [blame] | 76 | for (r = bios_device.dev->resource_list; r; r = r->next) { |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 77 | translate_address_array[taa_index].info = r->flags; |
| 78 | translate_address_array[taa_index].bus = bus; |
| 79 | translate_address_array[taa_index].devfn = devfn; |
| 80 | translate_address_array[taa_index].cfg_space_offset = |
| 81 | r->index; |
| 82 | translate_address_array[taa_index].address = r->base; |
| 83 | translate_address_array[taa_index].size = r->size; |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 84 | /* don't translate addresses... all addresses are 1:1 */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 85 | translate_address_array[taa_index].address_offset = 0; |
| 86 | taa_index++; |
| 87 | } |
| 88 | /* Expansion ROM */ |
| 89 | translate_address_array[taa_index].info = IORESOURCE_MEM | IORESOURCE_READONLY; |
| 90 | translate_address_array[taa_index].bus = bus; |
| 91 | translate_address_array[taa_index].devfn = devfn; |
| 92 | translate_address_array[taa_index].cfg_space_offset = 0x30; |
Stefan Reinauer | 775a766 | 2010-01-19 21:14:24 +0000 | [diff] [blame] | 93 | translate_address_array[taa_index].address = bios_device.img_addr; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 94 | translate_address_array[taa_index].size = 0; /* TODO: do we need the size? */ |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 95 | /* don't translate addresses... all addresses are 1:1 */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 96 | translate_address_array[taa_index].address_offset = 0; |
| 97 | taa_index++; |
| 98 | /* legacy ranges if its a VGA card... */ |
| 99 | if ((bios_device.dev->class & 0xFF0000) == 0x030000) { |
Elyes HAOUAS | a1ac10f | 2016-08-21 18:21:59 +0200 | [diff] [blame] | 100 | DEBUG_PRINTF("%s: VGA device found, adding legacy resources...\n", __func__); |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 101 | /* I/O 0x3B0-0x3BB */ |
| 102 | translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO; |
| 103 | translate_address_array[taa_index].bus = bus; |
| 104 | translate_address_array[taa_index].devfn = devfn; |
| 105 | translate_address_array[taa_index].cfg_space_offset = 0; |
| 106 | translate_address_array[taa_index].address = 0x3b0; |
| 107 | translate_address_array[taa_index].size = 0xc; |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 108 | /* don't translate addresses... all addresses are 1:1 */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 109 | translate_address_array[taa_index].address_offset = 0; |
| 110 | taa_index++; |
| 111 | /* I/O 0x3C0-0x3DF */ |
| 112 | translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_IO; |
| 113 | translate_address_array[taa_index].bus = bus; |
| 114 | translate_address_array[taa_index].devfn = devfn; |
| 115 | translate_address_array[taa_index].cfg_space_offset = 0; |
| 116 | translate_address_array[taa_index].address = 0x3c0; |
| 117 | translate_address_array[taa_index].size = 0x20; |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 118 | /* don't translate addresses... all addresses are 1:1 */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 119 | translate_address_array[taa_index].address_offset = 0; |
| 120 | taa_index++; |
| 121 | /* Mem 0xA0000-0xBFFFF */ |
| 122 | translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_MEM; |
| 123 | translate_address_array[taa_index].bus = bus; |
| 124 | translate_address_array[taa_index].devfn = devfn; |
| 125 | translate_address_array[taa_index].cfg_space_offset = 0; |
| 126 | translate_address_array[taa_index].address = 0xa0000; |
| 127 | translate_address_array[taa_index].size = 0x20000; |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 128 | /* don't translate addresses... all addresses are 1:1 */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 129 | translate_address_array[taa_index].address_offset = 0; |
| 130 | taa_index++; |
| 131 | } |
| 132 | // store last entry index of translate_address_array |
| 133 | taa_last_entry = taa_index - 1; |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 134 | #if IS_ENABLED(CONFIG_X86EMU_DEBUG) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 135 | //dump translate_address_array |
Elyes HAOUAS | a1ac10f | 2016-08-21 18:21:59 +0200 | [diff] [blame] | 136 | printf("translate_address_array:\n"); |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 137 | translate_address_t ta; |
Stefan Reinauer | c56e5ad | 2010-05-27 15:41:15 +0000 | [diff] [blame] | 138 | int i; |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 139 | for (i = 0; i <= taa_last_entry; i++) { |
| 140 | ta = translate_address_array[i]; |
| 141 | printf |
| 142 | ("%d: info: %08lx bus: %02x devfn: %02x cfg_space_offset: %02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n", |
| 143 | i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset, |
| 144 | ta.address, ta.address_offset, ta.size); |
| 145 | } |
| 146 | #endif |
| 147 | } |
| 148 | #else |
| 149 | // use translate_address_dev and get_puid from net-snk's net_support.c |
| 150 | void translate_address_dev(u64 *, phandle_t); |
| 151 | u64 get_puid(phandle_t node); |
| 152 | |
| 153 | |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 154 | // scan all addresses assigned to the device ("assigned-addresses" and "reg") |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 155 | // store in translate_address_array for faster translation using dev_translate_address |
| 156 | void |
| 157 | biosemu_dev_get_addr_info(void) |
| 158 | { |
| 159 | // get bus/dev/fn from assigned-addresses |
| 160 | int32_t len; |
| 161 | //max. 6 BARs and 1 Exp.ROM plus CfgSpace and 3 legacy ranges |
| 162 | assigned_address_t buf[11]; |
| 163 | len = |
| 164 | of_getprop(bios_device.phandle, "assigned-addresses", buf, |
| 165 | sizeof(buf)); |
| 166 | bios_device.bus = buf[0].bus; |
| 167 | bios_device.devfn = buf[0].devfn; |
| 168 | DEBUG_PRINTF("bus: %x, devfn: %x\n", bios_device.bus, |
| 169 | bios_device.devfn); |
| 170 | //store address translations for all assigned-addresses and regs in |
| 171 | //translate_address_array for faster translation later on... |
| 172 | int i = 0; |
| 173 | // index to insert data into translate_address_array |
| 174 | int taa_index = 0; |
| 175 | u64 address_offset; |
| 176 | for (i = 0; i < (len / sizeof(assigned_address_t)); i++, taa_index++) { |
| 177 | //copy all info stored in assigned-addresses |
| 178 | translate_address_array[taa_index].info = buf[i].info; |
| 179 | translate_address_array[taa_index].bus = buf[i].bus; |
| 180 | translate_address_array[taa_index].devfn = buf[i].devfn; |
| 181 | translate_address_array[taa_index].cfg_space_offset = |
| 182 | buf[i].cfg_space_offset; |
| 183 | translate_address_array[taa_index].address = buf[i].address; |
| 184 | translate_address_array[taa_index].size = buf[i].size; |
| 185 | // translate first address and store it as address_offset |
| 186 | address_offset = buf[i].address; |
| 187 | translate_address_dev(&address_offset, bios_device.phandle); |
| 188 | translate_address_array[taa_index].address_offset = |
| 189 | address_offset - buf[i].address; |
| 190 | } |
| 191 | //get "reg" property |
| 192 | len = of_getprop(bios_device.phandle, "reg", buf, sizeof(buf)); |
| 193 | for (i = 0; i < (len / sizeof(assigned_address_t)); i++) { |
| 194 | if ((buf[i].size == 0) || (buf[i].cfg_space_offset != 0)) { |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 195 | // we don't care for ranges with size 0 and |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 196 | // BARs and Expansion ROM must be in assigned-addresses... so in reg |
| 197 | // we only look for those without config space offset set... |
| 198 | // i.e. the legacy ranges |
| 199 | continue; |
| 200 | } |
| 201 | //copy all info stored in assigned-addresses |
| 202 | translate_address_array[taa_index].info = buf[i].info; |
| 203 | translate_address_array[taa_index].bus = buf[i].bus; |
| 204 | translate_address_array[taa_index].devfn = buf[i].devfn; |
| 205 | translate_address_array[taa_index].cfg_space_offset = |
| 206 | buf[i].cfg_space_offset; |
| 207 | translate_address_array[taa_index].address = buf[i].address; |
| 208 | translate_address_array[taa_index].size = buf[i].size; |
| 209 | // translate first address and store it as address_offset |
| 210 | address_offset = buf[i].address; |
| 211 | translate_address_dev(&address_offset, bios_device.phandle); |
| 212 | translate_address_array[taa_index].address_offset = |
| 213 | address_offset - buf[i].address; |
| 214 | taa_index++; |
| 215 | } |
| 216 | // store last entry index of translate_address_array |
| 217 | taa_last_entry = taa_index - 1; |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 218 | #if IS_ENABLED(CONFIG_X86EMU_DEBUG) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 219 | //dump translate_address_array |
Elyes HAOUAS | a1ac10f | 2016-08-21 18:21:59 +0200 | [diff] [blame] | 220 | printf("translate_address_array:\n"); |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 221 | translate_address_t ta; |
| 222 | for (i = 0; i <= taa_last_entry; i++) { |
| 223 | ta = translate_address_array[i]; |
| 224 | printf |
| 225 | ("%d: %02x%02x%02x%02x\n\taddr: %016llx\n\toffs: %016llx\n\tsize: %016llx\n", |
| 226 | i, ta.info, ta.bus, ta.devfn, ta.cfg_space_offset, |
| 227 | ta.address, ta.address_offset, ta.size); |
| 228 | } |
| 229 | #endif |
| 230 | } |
| 231 | #endif |
| 232 | |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 233 | // "special memory" is a hack to make some parts of memory fall through to real memory |
| 234 | // (ie. no translation). Necessary if option ROMs attempt DMA there, map registers or |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 235 | // do similarly crazy things. |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 236 | void |
| 237 | biosemu_add_special_memory(u32 start, u32 size) |
| 238 | { |
| 239 | int taa_index = ++taa_last_entry; |
| 240 | translate_address_array[taa_index].info = IORESOURCE_FIXED | IORESOURCE_MEM; |
| 241 | translate_address_array[taa_index].bus = 0; |
| 242 | translate_address_array[taa_index].devfn = 0; |
| 243 | translate_address_array[taa_index].cfg_space_offset = 0; |
| 244 | translate_address_array[taa_index].address = start; |
| 245 | translate_address_array[taa_index].size = size; |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 246 | /* don't translate addresses... all addresses are 1:1 */ |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 247 | translate_address_array[taa_index].address_offset = 0; |
| 248 | } |
| 249 | |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 250 | #if !IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 251 | // to simulate accesses to legacy VGA Memory (0xA0000-0xBFFFF) |
| 252 | // we look for the first prefetchable memory BAR, if no prefetchable BAR found, |
| 253 | // we use the first memory BAR |
| 254 | // dev_translate_addr will translate accesses to the legacy VGA Memory into the found vmem BAR |
Uwe Hermann | 01ce601 | 2010-03-05 10:03:50 +0000 | [diff] [blame] | 255 | static void |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 256 | biosemu_dev_find_vmem_addr(void) |
| 257 | { |
| 258 | int i = 0; |
| 259 | translate_address_t ta; |
| 260 | s8 tai_np = -1, tai_p = -1; // translate_address_array index for non-prefetchable and prefetchable memory |
| 261 | //search backwards to find first entry |
| 262 | for (i = taa_last_entry; i >= 0; i--) { |
| 263 | ta = translate_address_array[i]; |
| 264 | if ((ta.cfg_space_offset >= 0x10) |
| 265 | && (ta.cfg_space_offset <= 0x24)) { |
| 266 | //only BARs |
| 267 | if ((ta.info & 0x03) >= 0x02) { |
| 268 | //32/64bit memory |
| 269 | tai_np = i; |
| 270 | if ((ta.info & 0x40) != 0) { |
| 271 | // prefetchable |
| 272 | tai_p = i; |
| 273 | } |
| 274 | } |
| 275 | } |
| 276 | } |
| 277 | if (tai_p != -1) { |
| 278 | ta = translate_address_array[tai_p]; |
| 279 | bios_device.vmem_addr = ta.address; |
| 280 | bios_device.vmem_size = ta.size; |
| 281 | DEBUG_PRINTF |
| 282 | ("%s: Found prefetchable Virtual Legacy Memory BAR: %llx, size: %llx\n", |
| 283 | __func__, bios_device.vmem_addr, |
| 284 | bios_device.vmem_size); |
| 285 | } else if (tai_np != -1) { |
| 286 | ta = translate_address_array[tai_np]; |
| 287 | bios_device.vmem_addr = ta.address; |
| 288 | bios_device.vmem_size = ta.size; |
| 289 | DEBUG_PRINTF |
| 290 | ("%s: Found non-prefetchable Virtual Legacy Memory BAR: %llx, size: %llx", |
| 291 | __func__, bios_device.vmem_addr, |
| 292 | bios_device.vmem_size); |
| 293 | } |
| 294 | // disable vmem |
| 295 | //bios_device.vmem_size = 0; |
| 296 | } |
| 297 | |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 298 | void |
| 299 | biosemu_dev_get_puid(void) |
| 300 | { |
| 301 | // get puid |
| 302 | bios_device.puid = get_puid(bios_device.phandle); |
| 303 | DEBUG_PRINTF("puid: 0x%llx\n", bios_device.puid); |
| 304 | } |
| 305 | #endif |
| 306 | |
Uwe Hermann | 01ce601 | 2010-03-05 10:03:50 +0000 | [diff] [blame] | 307 | static void |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 308 | biosemu_dev_get_device_vendor_id(void) |
| 309 | { |
| 310 | |
| 311 | u32 pci_config_0; |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 312 | #if IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 313 | pci_config_0 = pci_read_config32(bios_device.dev, 0x0); |
| 314 | #else |
| 315 | pci_config_0 = |
| 316 | rtas_pci_config_read(bios_device.puid, 4, bios_device.bus, |
| 317 | bios_device.devfn, 0x0); |
| 318 | #endif |
| 319 | bios_device.pci_device_id = |
| 320 | (u16) ((pci_config_0 & 0xFFFF0000) >> 16); |
| 321 | bios_device.pci_vendor_id = (u16) (pci_config_0 & 0x0000FFFF); |
| 322 | DEBUG_PRINTF("PCI Device ID: %04x, PCI Vendor ID: %x\n", |
| 323 | bios_device.pci_device_id, bios_device.pci_vendor_id); |
| 324 | } |
| 325 | |
| 326 | /* Check whether the device has a valid Expansion ROM and search the PCI Data |
| 327 | * Structure and any Expansion ROM Header (using dev_scan_exp_header()) for |
| 328 | * needed information. If the rom_addr parameter is != 0, it is the address of |
| 329 | * the Expansion ROM image and will be used, if it is == 0, the Expansion ROM |
| 330 | * BAR address will be used. |
| 331 | */ |
| 332 | u8 |
| 333 | biosemu_dev_check_exprom(unsigned long rom_base_addr) |
| 334 | { |
| 335 | int i = 0; |
| 336 | translate_address_t ta; |
| 337 | u16 pci_ds_offset; |
| 338 | pci_data_struct_t pci_ds; |
| 339 | if (rom_base_addr == 0) { |
| 340 | // check for ExpROM Address (Offset 30) in taa |
| 341 | for (i = 0; i <= taa_last_entry; i++) { |
| 342 | ta = translate_address_array[i]; |
| 343 | if (ta.cfg_space_offset == 0x30) { |
| 344 | //translated address |
| 345 | rom_base_addr = ta.address + ta.address_offset; |
| 346 | break; |
| 347 | } |
| 348 | } |
| 349 | } |
| 350 | /* In the ROM there could be multiple Expansion ROM Images... start |
| 351 | * searching them for an x86 image. |
| 352 | */ |
| 353 | do { |
| 354 | if (rom_base_addr == 0) { |
| 355 | printf("Error: no Expansion ROM address found!\n"); |
| 356 | return -1; |
| 357 | } |
| 358 | set_ci(); |
| 359 | u16 rom_signature = in16le((void *) rom_base_addr); |
| 360 | clr_ci(); |
| 361 | if (rom_signature != 0xaa55) { |
| 362 | printf |
| 363 | ("Error: invalid Expansion ROM signature: %02x!\n", |
| 364 | *((u16 *) rom_base_addr)); |
| 365 | return -1; |
| 366 | } |
| 367 | set_ci(); |
| 368 | // at offset 0x18 is the (16bit little-endian) pointer to the PCI Data Structure |
| 369 | pci_ds_offset = in16le((void *) (rom_base_addr + 0x18)); |
| 370 | //copy the PCI Data Structure |
| 371 | memcpy(&pci_ds, (void *) (rom_base_addr + pci_ds_offset), |
| 372 | sizeof(pci_ds)); |
| 373 | clr_ci(); |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 374 | #if IS_ENABLED(CONFIG_X86EMU_DEBUG) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 375 | DEBUG_PRINTF("PCI Data Structure @%lx:\n", |
| 376 | rom_base_addr + pci_ds_offset); |
| 377 | dump((void *) &pci_ds, sizeof(pci_ds)); |
| 378 | #endif |
| 379 | if (strncmp((const char *) pci_ds.signature, "PCIR", 4) != 0) { |
| 380 | printf("Invalid PCI Data Structure found!\n"); |
| 381 | break; |
| 382 | } |
| 383 | //little-endian conversion |
| 384 | pci_ds.vendor_id = in16le(&pci_ds.vendor_id); |
| 385 | pci_ds.device_id = in16le(&pci_ds.device_id); |
| 386 | pci_ds.img_length = in16le(&pci_ds.img_length); |
| 387 | pci_ds.pci_ds_length = in16le(&pci_ds.pci_ds_length); |
Stefan Reinauer | c1efb90 | 2011-10-12 14:30:59 -0700 | [diff] [blame] | 388 | #ifdef DO_THIS_TEST_TWICE |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 389 | if (pci_ds.vendor_id != bios_device.pci_vendor_id) { |
| 390 | printf |
| 391 | ("Image has invalid Vendor ID: %04x, expected: %04x\n", |
| 392 | pci_ds.vendor_id, bios_device.pci_vendor_id); |
| 393 | break; |
| 394 | } |
| 395 | if (pci_ds.device_id != bios_device.pci_device_id) { |
| 396 | printf |
| 397 | ("Image has invalid Device ID: %04x, expected: %04x\n", |
| 398 | pci_ds.device_id, bios_device.pci_device_id); |
| 399 | break; |
| 400 | } |
Stefan Reinauer | c1efb90 | 2011-10-12 14:30:59 -0700 | [diff] [blame] | 401 | #endif |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 402 | DEBUG_PRINTF("Image Length: %d\n", pci_ds.img_length * 512); |
| 403 | DEBUG_PRINTF("Image Code Type: %d\n", pci_ds.code_type); |
| 404 | if (pci_ds.code_type == 0) { |
| 405 | //x86 image |
| 406 | //store image address and image length in bios_device struct |
| 407 | bios_device.img_addr = rom_base_addr; |
| 408 | bios_device.img_size = pci_ds.img_length * 512; |
| 409 | // we found the image, exit the loop |
| 410 | break; |
| 411 | } else { |
| 412 | // no x86 image, check next image (if any) |
| 413 | rom_base_addr += pci_ds.img_length * 512; |
| 414 | } |
| 415 | if ((pci_ds.indicator & 0x80) == 0x80) { |
| 416 | //last image found, exit the loop |
| 417 | DEBUG_PRINTF("Last PCI Expansion ROM Image found.\n"); |
| 418 | break; |
| 419 | } |
| 420 | } |
| 421 | while (bios_device.img_addr == 0); |
| 422 | // in case we did not find a valid x86 Expansion ROM Image |
| 423 | if (bios_device.img_addr == 0) { |
| 424 | printf("Error: no valid x86 Expansion ROM Image found!\n"); |
| 425 | return -1; |
| 426 | } |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | u8 |
| 431 | biosemu_dev_init(struct device * device) |
| 432 | { |
| 433 | u8 rval = 0; |
| 434 | //init bios_device struct |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 435 | DEBUG_PRINTF("%s\n", __func__); |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 436 | memset(&bios_device, 0, sizeof(bios_device)); |
| 437 | |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 438 | #if !IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 439 | bios_device.ihandle = of_open(device_name); |
| 440 | if (bios_device.ihandle == 0) { |
| 441 | DEBUG_PRINTF("%s is no valid device!\n", device_name); |
| 442 | return -1; |
| 443 | } |
| 444 | bios_device.phandle = of_finddevice(device_name); |
| 445 | #else |
| 446 | bios_device.dev = device; |
| 447 | #endif |
| 448 | biosemu_dev_get_addr_info(); |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 449 | #if !IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 450 | biosemu_dev_find_vmem_addr(); |
| 451 | biosemu_dev_get_puid(); |
| 452 | #endif |
| 453 | biosemu_dev_get_device_vendor_id(); |
| 454 | return rval; |
| 455 | } |
| 456 | |
| 457 | // translate address function using translate_address_array assembled |
| 458 | // by dev_get_addr_info... MUCH faster than calling translate_address_dev |
| 459 | // and accessing client interface for every translation... |
| 460 | // returns: 0 if addr not found in translate_address_array, 1 if found. |
| 461 | u8 |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 462 | biosemu_dev_translate_address(int type, unsigned long * addr) |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 463 | { |
| 464 | int i = 0; |
| 465 | translate_address_t ta; |
Martin Roth | ebade5d | 2017-06-24 13:58:52 -0600 | [diff] [blame] | 466 | #if !IS_ENABLED(CONFIG_PCI_OPTION_ROM_RUN_YABEL) |
Martin Roth | 63373ed | 2013-07-08 16:24:19 -0600 | [diff] [blame] | 467 | /* we don't need this hack for coreboot... we can access legacy areas */ |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 468 | //check if it is an access to legacy VGA Mem... if it is, map the address |
| 469 | //to the vmem BAR and then translate it... |
| 470 | // (translation info provided by Ben Herrenschmidt) |
| 471 | // NOTE: the translation seems to only work for NVIDIA cards... but it is needed |
| 472 | // to make some NVIDIA cards work at all... |
| 473 | if ((bios_device.vmem_size > 0) |
| 474 | && ((*addr >= 0xA0000) && (*addr < 0xB8000))) { |
| 475 | *addr = (*addr - 0xA0000) * 4 + 2 + bios_device.vmem_addr; |
| 476 | } |
| 477 | if ((bios_device.vmem_size > 0) |
| 478 | && ((*addr >= 0xB8000) && (*addr < 0xC0000))) { |
| 479 | u8 shift = *addr & 1; |
| 480 | *addr &= 0xfffffffe; |
| 481 | *addr = (*addr - 0xB8000) * 4 + shift + bios_device.vmem_addr; |
| 482 | } |
| 483 | #endif |
| 484 | for (i = 0; i <= taa_last_entry; i++) { |
| 485 | ta = translate_address_array[i]; |
Patrick Georgi | 9144304 | 2011-01-13 11:38:46 +0000 | [diff] [blame] | 486 | if ((*addr >= ta.address) && (*addr <= (ta.address + ta.size)) && (ta.info & type)) { |
Stefan Reinauer | 38cd29e | 2009-08-11 21:28:25 +0000 | [diff] [blame] | 487 | *addr += ta.address_offset; |
| 488 | return 1; |
| 489 | } |
| 490 | } |
| 491 | return 0; |
| 492 | } |