Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 1 | /* |
| 2 | * PS3 system bus driver. |
| 3 | * |
| 4 | * Copyright (C) 2006 Sony Computer Entertainment Inc. |
| 5 | * Copyright 2006 Sony Corp. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; version 2 of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/init.h> |
Paul Gortmaker | 4b16f8e | 2011-07-22 18:24:23 -0400 | [diff] [blame] | 23 | #include <linux/export.h> |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 24 | #include <linux/dma-mapping.h> |
| 25 | #include <linux/err.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 26 | #include <linux/slab.h> |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 27 | |
| 28 | #include <asm/udbg.h> |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 29 | #include <asm/lv1call.h> |
Arnd Bergmann | e22ba7e | 2006-11-27 19:18:57 +0100 | [diff] [blame] | 30 | #include <asm/firmware.h> |
Geert Uytterhoeven | 9413c88 | 2009-07-29 02:06:42 +0000 | [diff] [blame] | 31 | #include <asm/cell-regs.h> |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 32 | |
Geoff Levand | 2a08ea6 | 2007-01-30 15:20:27 -0800 | [diff] [blame] | 33 | #include "platform.h" |
| 34 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 35 | static struct device ps3_system_bus = { |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 36 | .init_name = "ps3_system", |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 37 | }; |
| 38 | |
| 39 | /* FIXME: need device usage counters! */ |
| 40 | struct { |
| 41 | struct mutex mutex; |
| 42 | int sb_11; /* usb 0 */ |
| 43 | int sb_12; /* usb 0 */ |
| 44 | int gpu; |
| 45 | } static usage_hack; |
| 46 | |
Geert Uytterhoeven | 034e0ab | 2008-01-19 07:30:09 +1100 | [diff] [blame] | 47 | static int ps3_is_device(struct ps3_system_bus_device *dev, u64 bus_id, |
| 48 | u64 dev_id) |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 49 | { |
| 50 | return dev->bus_id == bus_id && dev->dev_id == dev_id; |
| 51 | } |
| 52 | |
| 53 | static int ps3_open_hv_device_sb(struct ps3_system_bus_device *dev) |
| 54 | { |
| 55 | int result; |
| 56 | |
| 57 | BUG_ON(!dev->bus_id); |
| 58 | mutex_lock(&usage_hack.mutex); |
| 59 | |
| 60 | if (ps3_is_device(dev, 1, 1)) { |
| 61 | usage_hack.sb_11++; |
| 62 | if (usage_hack.sb_11 > 1) { |
| 63 | result = 0; |
| 64 | goto done; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | if (ps3_is_device(dev, 1, 2)) { |
| 69 | usage_hack.sb_12++; |
| 70 | if (usage_hack.sb_12 > 1) { |
| 71 | result = 0; |
| 72 | goto done; |
| 73 | } |
| 74 | } |
| 75 | |
| 76 | result = lv1_open_device(dev->bus_id, dev->dev_id, 0); |
| 77 | |
| 78 | if (result) { |
| 79 | pr_debug("%s:%d: lv1_open_device failed: %s\n", __func__, |
| 80 | __LINE__, ps3_result(result)); |
| 81 | result = -EPERM; |
| 82 | } |
| 83 | |
| 84 | done: |
| 85 | mutex_unlock(&usage_hack.mutex); |
| 86 | return result; |
| 87 | } |
| 88 | |
| 89 | static int ps3_close_hv_device_sb(struct ps3_system_bus_device *dev) |
| 90 | { |
| 91 | int result; |
| 92 | |
| 93 | BUG_ON(!dev->bus_id); |
| 94 | mutex_lock(&usage_hack.mutex); |
| 95 | |
| 96 | if (ps3_is_device(dev, 1, 1)) { |
| 97 | usage_hack.sb_11--; |
| 98 | if (usage_hack.sb_11) { |
| 99 | result = 0; |
| 100 | goto done; |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | if (ps3_is_device(dev, 1, 2)) { |
| 105 | usage_hack.sb_12--; |
| 106 | if (usage_hack.sb_12) { |
| 107 | result = 0; |
| 108 | goto done; |
| 109 | } |
| 110 | } |
| 111 | |
| 112 | result = lv1_close_device(dev->bus_id, dev->dev_id); |
| 113 | BUG_ON(result); |
| 114 | |
| 115 | done: |
| 116 | mutex_unlock(&usage_hack.mutex); |
| 117 | return result; |
| 118 | } |
| 119 | |
| 120 | static int ps3_open_hv_device_gpu(struct ps3_system_bus_device *dev) |
| 121 | { |
| 122 | int result; |
| 123 | |
| 124 | mutex_lock(&usage_hack.mutex); |
| 125 | |
| 126 | usage_hack.gpu++; |
| 127 | if (usage_hack.gpu > 1) { |
| 128 | result = 0; |
| 129 | goto done; |
| 130 | } |
| 131 | |
| 132 | result = lv1_gpu_open(0); |
| 133 | |
| 134 | if (result) { |
| 135 | pr_debug("%s:%d: lv1_gpu_open failed: %s\n", __func__, |
| 136 | __LINE__, ps3_result(result)); |
| 137 | result = -EPERM; |
| 138 | } |
| 139 | |
| 140 | done: |
| 141 | mutex_unlock(&usage_hack.mutex); |
| 142 | return result; |
| 143 | } |
| 144 | |
| 145 | static int ps3_close_hv_device_gpu(struct ps3_system_bus_device *dev) |
| 146 | { |
| 147 | int result; |
| 148 | |
| 149 | mutex_lock(&usage_hack.mutex); |
| 150 | |
| 151 | usage_hack.gpu--; |
| 152 | if (usage_hack.gpu) { |
| 153 | result = 0; |
| 154 | goto done; |
| 155 | } |
| 156 | |
| 157 | result = lv1_gpu_close(); |
| 158 | BUG_ON(result); |
| 159 | |
| 160 | done: |
| 161 | mutex_unlock(&usage_hack.mutex); |
| 162 | return result; |
| 163 | } |
| 164 | |
| 165 | int ps3_open_hv_device(struct ps3_system_bus_device *dev) |
| 166 | { |
| 167 | BUG_ON(!dev); |
| 168 | pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); |
| 169 | |
| 170 | switch (dev->match_id) { |
| 171 | case PS3_MATCH_ID_EHCI: |
| 172 | case PS3_MATCH_ID_OHCI: |
| 173 | case PS3_MATCH_ID_GELIC: |
| 174 | case PS3_MATCH_ID_STOR_DISK: |
| 175 | case PS3_MATCH_ID_STOR_ROM: |
| 176 | case PS3_MATCH_ID_STOR_FLASH: |
| 177 | return ps3_open_hv_device_sb(dev); |
| 178 | |
| 179 | case PS3_MATCH_ID_SOUND: |
Geert Uytterhoeven | 46d0149 | 2008-12-03 13:52:21 +0000 | [diff] [blame] | 180 | case PS3_MATCH_ID_GPU: |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 181 | return ps3_open_hv_device_gpu(dev); |
| 182 | |
| 183 | case PS3_MATCH_ID_AV_SETTINGS: |
| 184 | case PS3_MATCH_ID_SYSTEM_MANAGER: |
| 185 | pr_debug("%s:%d: unsupported match_id: %u\n", __func__, |
| 186 | __LINE__, dev->match_id); |
Stephen Rothwell | 5c94907 | 2009-01-13 20:02:39 +0000 | [diff] [blame] | 187 | pr_debug("%s:%d: bus_id: %llu\n", __func__, __LINE__, |
Geert Uytterhoeven | 034e0ab | 2008-01-19 07:30:09 +1100 | [diff] [blame] | 188 | dev->bus_id); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 189 | BUG(); |
| 190 | return -EINVAL; |
| 191 | |
| 192 | default: |
| 193 | break; |
| 194 | } |
| 195 | |
| 196 | pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, |
| 197 | dev->match_id); |
| 198 | BUG(); |
| 199 | return -ENODEV; |
| 200 | } |
| 201 | EXPORT_SYMBOL_GPL(ps3_open_hv_device); |
| 202 | |
| 203 | int ps3_close_hv_device(struct ps3_system_bus_device *dev) |
| 204 | { |
| 205 | BUG_ON(!dev); |
| 206 | pr_debug("%s:%d: match_id: %u\n", __func__, __LINE__, dev->match_id); |
| 207 | |
| 208 | switch (dev->match_id) { |
| 209 | case PS3_MATCH_ID_EHCI: |
| 210 | case PS3_MATCH_ID_OHCI: |
| 211 | case PS3_MATCH_ID_GELIC: |
| 212 | case PS3_MATCH_ID_STOR_DISK: |
| 213 | case PS3_MATCH_ID_STOR_ROM: |
| 214 | case PS3_MATCH_ID_STOR_FLASH: |
| 215 | return ps3_close_hv_device_sb(dev); |
| 216 | |
| 217 | case PS3_MATCH_ID_SOUND: |
Geert Uytterhoeven | 46d0149 | 2008-12-03 13:52:21 +0000 | [diff] [blame] | 218 | case PS3_MATCH_ID_GPU: |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 219 | return ps3_close_hv_device_gpu(dev); |
| 220 | |
| 221 | case PS3_MATCH_ID_AV_SETTINGS: |
| 222 | case PS3_MATCH_ID_SYSTEM_MANAGER: |
| 223 | pr_debug("%s:%d: unsupported match_id: %u\n", __func__, |
| 224 | __LINE__, dev->match_id); |
Stephen Rothwell | 5c94907 | 2009-01-13 20:02:39 +0000 | [diff] [blame] | 225 | pr_debug("%s:%d: bus_id: %llu\n", __func__, __LINE__, |
Geert Uytterhoeven | 034e0ab | 2008-01-19 07:30:09 +1100 | [diff] [blame] | 226 | dev->bus_id); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 227 | BUG(); |
| 228 | return -EINVAL; |
| 229 | |
| 230 | default: |
| 231 | break; |
| 232 | } |
| 233 | |
| 234 | pr_debug("%s:%d: unknown match_id: %u\n", __func__, __LINE__, |
| 235 | dev->match_id); |
| 236 | BUG(); |
| 237 | return -ENODEV; |
| 238 | } |
| 239 | EXPORT_SYMBOL_GPL(ps3_close_hv_device); |
| 240 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 241 | #define dump_mmio_region(_a) _dump_mmio_region(_a, __func__, __LINE__) |
| 242 | static void _dump_mmio_region(const struct ps3_mmio_region* r, |
| 243 | const char* func, int line) |
| 244 | { |
Stephen Rothwell | 5c94907 | 2009-01-13 20:02:39 +0000 | [diff] [blame] | 245 | pr_debug("%s:%d: dev %llu:%llu\n", func, line, r->dev->bus_id, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 246 | r->dev->dev_id); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 247 | pr_debug("%s:%d: bus_addr %lxh\n", func, line, r->bus_addr); |
| 248 | pr_debug("%s:%d: len %lxh\n", func, line, r->len); |
| 249 | pr_debug("%s:%d: lpar_addr %lxh\n", func, line, r->lpar_addr); |
| 250 | } |
| 251 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 252 | static int ps3_sb_mmio_region_create(struct ps3_mmio_region *r) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 253 | { |
| 254 | int result; |
Stephen Rothwell | b17b3df | 2009-01-13 19:59:41 +0000 | [diff] [blame] | 255 | u64 lpar_addr; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 256 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 257 | result = lv1_map_device_mmio_region(r->dev->bus_id, r->dev->dev_id, |
Stephen Rothwell | b17b3df | 2009-01-13 19:59:41 +0000 | [diff] [blame] | 258 | r->bus_addr, r->len, r->page_size, &lpar_addr); |
| 259 | r->lpar_addr = lpar_addr; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 260 | |
| 261 | if (result) { |
| 262 | pr_debug("%s:%d: lv1_map_device_mmio_region failed: %s\n", |
| 263 | __func__, __LINE__, ps3_result(result)); |
Benjamin Herrenschmidt | 43d8043 | 2007-01-26 19:07:54 -0800 | [diff] [blame] | 264 | r->lpar_addr = 0; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | dump_mmio_region(r); |
| 268 | return result; |
| 269 | } |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 270 | |
| 271 | static int ps3_ioc0_mmio_region_create(struct ps3_mmio_region *r) |
| 272 | { |
| 273 | /* device specific; do nothing currently */ |
| 274 | return 0; |
| 275 | } |
| 276 | |
| 277 | int ps3_mmio_region_create(struct ps3_mmio_region *r) |
| 278 | { |
| 279 | return r->mmio_ops->create(r); |
| 280 | } |
Al Viro | 9288f5c | 2007-02-09 16:05:27 +0000 | [diff] [blame] | 281 | EXPORT_SYMBOL_GPL(ps3_mmio_region_create); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 282 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 283 | static int ps3_sb_free_mmio_region(struct ps3_mmio_region *r) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 284 | { |
| 285 | int result; |
| 286 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 287 | dump_mmio_region(r); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 288 | result = lv1_unmap_device_mmio_region(r->dev->bus_id, r->dev->dev_id, |
Benjamin Herrenschmidt | 43d8043 | 2007-01-26 19:07:54 -0800 | [diff] [blame] | 289 | r->lpar_addr); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 290 | |
| 291 | if (result) |
| 292 | pr_debug("%s:%d: lv1_unmap_device_mmio_region failed: %s\n", |
| 293 | __func__, __LINE__, ps3_result(result)); |
| 294 | |
Benjamin Herrenschmidt | 43d8043 | 2007-01-26 19:07:54 -0800 | [diff] [blame] | 295 | r->lpar_addr = 0; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 296 | return result; |
| 297 | } |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 298 | |
| 299 | static int ps3_ioc0_free_mmio_region(struct ps3_mmio_region *r) |
| 300 | { |
| 301 | /* device specific; do nothing currently */ |
| 302 | return 0; |
| 303 | } |
| 304 | |
| 305 | |
| 306 | int ps3_free_mmio_region(struct ps3_mmio_region *r) |
| 307 | { |
| 308 | return r->mmio_ops->free(r); |
| 309 | } |
| 310 | |
Al Viro | 9288f5c | 2007-02-09 16:05:27 +0000 | [diff] [blame] | 311 | EXPORT_SYMBOL_GPL(ps3_free_mmio_region); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 312 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 313 | static const struct ps3_mmio_region_ops ps3_mmio_sb_region_ops = { |
| 314 | .create = ps3_sb_mmio_region_create, |
| 315 | .free = ps3_sb_free_mmio_region |
| 316 | }; |
| 317 | |
| 318 | static const struct ps3_mmio_region_ops ps3_mmio_ioc0_region_ops = { |
| 319 | .create = ps3_ioc0_mmio_region_create, |
| 320 | .free = ps3_ioc0_free_mmio_region |
| 321 | }; |
| 322 | |
| 323 | int ps3_mmio_region_init(struct ps3_system_bus_device *dev, |
| 324 | struct ps3_mmio_region *r, unsigned long bus_addr, unsigned long len, |
| 325 | enum ps3_mmio_page_size page_size) |
| 326 | { |
| 327 | r->dev = dev; |
| 328 | r->bus_addr = bus_addr; |
| 329 | r->len = len; |
| 330 | r->page_size = page_size; |
| 331 | switch (dev->dev_type) { |
| 332 | case PS3_DEVICE_TYPE_SB: |
| 333 | r->mmio_ops = &ps3_mmio_sb_region_ops; |
| 334 | break; |
| 335 | case PS3_DEVICE_TYPE_IOC0: |
| 336 | r->mmio_ops = &ps3_mmio_ioc0_region_ops; |
| 337 | break; |
| 338 | default: |
| 339 | BUG(); |
| 340 | return -EINVAL; |
| 341 | } |
| 342 | return 0; |
| 343 | } |
| 344 | EXPORT_SYMBOL_GPL(ps3_mmio_region_init); |
| 345 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 346 | static int ps3_system_bus_match(struct device *_dev, |
| 347 | struct device_driver *_drv) |
| 348 | { |
| 349 | int result; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 350 | struct ps3_system_bus_driver *drv = ps3_drv_to_system_bus_drv(_drv); |
| 351 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 352 | |
Masakazu Mokuno | 059e493 | 2008-07-17 07:22:19 +1000 | [diff] [blame] | 353 | if (!dev->match_sub_id) |
| 354 | result = dev->match_id == drv->match_id; |
| 355 | else |
| 356 | result = dev->match_sub_id == drv->match_sub_id && |
| 357 | dev->match_id == drv->match_id; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 358 | |
Geoff Levand | 88b90c9 | 2008-07-02 04:17:05 +1000 | [diff] [blame] | 359 | if (result) |
Masakazu Mokuno | 059e493 | 2008-07-17 07:22:19 +1000 | [diff] [blame] | 360 | pr_info("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): match\n", |
| 361 | __func__, __LINE__, |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 362 | dev->match_id, dev->match_sub_id, dev_name(&dev->core), |
Masakazu Mokuno | 059e493 | 2008-07-17 07:22:19 +1000 | [diff] [blame] | 363 | drv->match_id, drv->match_sub_id, drv->core.name); |
Geoff Levand | 88b90c9 | 2008-07-02 04:17:05 +1000 | [diff] [blame] | 364 | else |
Masakazu Mokuno | 059e493 | 2008-07-17 07:22:19 +1000 | [diff] [blame] | 365 | pr_debug("%s:%d: dev=%u.%u(%s), drv=%u.%u(%s): miss\n", |
| 366 | __func__, __LINE__, |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 367 | dev->match_id, dev->match_sub_id, dev_name(&dev->core), |
Masakazu Mokuno | 059e493 | 2008-07-17 07:22:19 +1000 | [diff] [blame] | 368 | drv->match_id, drv->match_sub_id, drv->core.name); |
| 369 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 370 | return result; |
| 371 | } |
| 372 | |
| 373 | static int ps3_system_bus_probe(struct device *_dev) |
| 374 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 375 | int result = 0; |
| 376 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
| 377 | struct ps3_system_bus_driver *drv; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 378 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 379 | BUG_ON(!dev); |
Greg Kroah-Hartman | 54ca541 | 2009-01-26 09:12:12 -0800 | [diff] [blame] | 380 | dev_dbg(_dev, "%s:%d\n", __func__, __LINE__); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 381 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 382 | drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 383 | BUG_ON(!drv); |
| 384 | |
| 385 | if (drv->probe) |
| 386 | result = drv->probe(dev); |
| 387 | else |
Geoff Levand | 88b90c9 | 2008-07-02 04:17:05 +1000 | [diff] [blame] | 388 | pr_debug("%s:%d: %s no probe method\n", __func__, __LINE__, |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 389 | dev_name(&dev->core)); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 390 | |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 391 | pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 392 | return result; |
| 393 | } |
| 394 | |
| 395 | static int ps3_system_bus_remove(struct device *_dev) |
| 396 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 397 | int result = 0; |
| 398 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
| 399 | struct ps3_system_bus_driver *drv; |
| 400 | |
| 401 | BUG_ON(!dev); |
Greg Kroah-Hartman | 54ca541 | 2009-01-26 09:12:12 -0800 | [diff] [blame] | 402 | dev_dbg(_dev, "%s:%d\n", __func__, __LINE__); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 403 | |
| 404 | drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
| 405 | BUG_ON(!drv); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 406 | |
| 407 | if (drv->remove) |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 408 | result = drv->remove(dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 409 | else |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 410 | dev_dbg(&dev->core, "%s:%d %s: no remove method\n", |
| 411 | __func__, __LINE__, drv->core.name); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 412 | |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 413 | pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, dev_name(&dev->core)); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 414 | return result; |
| 415 | } |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 416 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 417 | static void ps3_system_bus_shutdown(struct device *_dev) |
| 418 | { |
| 419 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
| 420 | struct ps3_system_bus_driver *drv; |
| 421 | |
| 422 | BUG_ON(!dev); |
| 423 | |
| 424 | dev_dbg(&dev->core, " -> %s:%d: match_id %d\n", __func__, __LINE__, |
| 425 | dev->match_id); |
| 426 | |
| 427 | if (!dev->core.driver) { |
| 428 | dev_dbg(&dev->core, "%s:%d: no driver bound\n", __func__, |
| 429 | __LINE__); |
| 430 | return; |
| 431 | } |
| 432 | |
| 433 | drv = ps3_system_bus_dev_to_system_bus_drv(dev); |
| 434 | |
| 435 | BUG_ON(!drv); |
| 436 | |
| 437 | dev_dbg(&dev->core, "%s:%d: %s -> %s\n", __func__, __LINE__, |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 438 | dev_name(&dev->core), drv->core.name); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 439 | |
| 440 | if (drv->shutdown) |
| 441 | drv->shutdown(dev); |
| 442 | else if (drv->remove) { |
| 443 | dev_dbg(&dev->core, "%s:%d %s: no shutdown, calling remove\n", |
| 444 | __func__, __LINE__, drv->core.name); |
| 445 | drv->remove(dev); |
| 446 | } else { |
| 447 | dev_dbg(&dev->core, "%s:%d %s: no shutdown method\n", |
| 448 | __func__, __LINE__, drv->core.name); |
| 449 | BUG(); |
| 450 | } |
| 451 | |
| 452 | dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 453 | } |
| 454 | |
Kay Sievers | 7eff2e7 | 2007-08-14 15:15:12 +0200 | [diff] [blame] | 455 | static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *env) |
David Woodhouse | 688b337 | 2007-06-16 07:55:14 +1000 | [diff] [blame] | 456 | { |
| 457 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
David Woodhouse | 688b337 | 2007-06-16 07:55:14 +1000 | [diff] [blame] | 458 | |
Geert Uytterhoeven | 46d0149 | 2008-12-03 13:52:21 +0000 | [diff] [blame] | 459 | if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id, |
| 460 | dev->match_sub_id)) |
David Woodhouse | 688b337 | 2007-06-16 07:55:14 +1000 | [diff] [blame] | 461 | return -ENOMEM; |
David Woodhouse | 688b337 | 2007-06-16 07:55:14 +1000 | [diff] [blame] | 462 | return 0; |
| 463 | } |
| 464 | |
David Woodhouse | 6758555 | 2007-06-16 07:55:20 +1000 | [diff] [blame] | 465 | static ssize_t modalias_show(struct device *_dev, struct device_attribute *a, |
| 466 | char *buf) |
| 467 | { |
| 468 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geert Uytterhoeven | 46d0149 | 2008-12-03 13:52:21 +0000 | [diff] [blame] | 469 | int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id, |
| 470 | dev->match_sub_id); |
David Woodhouse | 6758555 | 2007-06-16 07:55:20 +1000 | [diff] [blame] | 471 | |
| 472 | return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; |
| 473 | } |
| 474 | |
| 475 | static struct device_attribute ps3_system_bus_dev_attrs[] = { |
| 476 | __ATTR_RO(modalias), |
| 477 | __ATTR_NULL, |
| 478 | }; |
| 479 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 480 | struct bus_type ps3_system_bus_type = { |
Geoff Levand | 2a08ea6 | 2007-01-30 15:20:27 -0800 | [diff] [blame] | 481 | .name = "ps3_system_bus", |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 482 | .match = ps3_system_bus_match, |
David Woodhouse | 688b337 | 2007-06-16 07:55:14 +1000 | [diff] [blame] | 483 | .uevent = ps3_system_bus_uevent, |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 484 | .probe = ps3_system_bus_probe, |
| 485 | .remove = ps3_system_bus_remove, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 486 | .shutdown = ps3_system_bus_shutdown, |
David Woodhouse | 6758555 | 2007-06-16 07:55:20 +1000 | [diff] [blame] | 487 | .dev_attrs = ps3_system_bus_dev_attrs, |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 488 | }; |
| 489 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 490 | static int __init ps3_system_bus_init(void) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 491 | { |
| 492 | int result; |
| 493 | |
Arnd Bergmann | e22ba7e | 2006-11-27 19:18:57 +0100 | [diff] [blame] | 494 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
Geert Uytterhoeven | ef596c6 | 2007-03-10 00:05:38 +0100 | [diff] [blame] | 495 | return -ENODEV; |
Arnd Bergmann | e22ba7e | 2006-11-27 19:18:57 +0100 | [diff] [blame] | 496 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 497 | pr_debug(" -> %s:%d\n", __func__, __LINE__); |
| 498 | |
| 499 | mutex_init(&usage_hack.mutex); |
| 500 | |
| 501 | result = device_register(&ps3_system_bus); |
| 502 | BUG_ON(result); |
| 503 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 504 | result = bus_register(&ps3_system_bus_type); |
| 505 | BUG_ON(result); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 506 | |
| 507 | pr_debug(" <- %s:%d\n", __func__, __LINE__); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 508 | return result; |
| 509 | } |
| 510 | |
| 511 | core_initcall(ps3_system_bus_init); |
| 512 | |
| 513 | /* Allocates a contiguous real buffer and creates mappings over it. |
| 514 | * Returns the virtual address of the buffer and sets dma_handle |
| 515 | * to the dma address (mapping) of the first page. |
| 516 | */ |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 517 | static void * ps3_alloc_coherent(struct device *_dev, size_t size, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 518 | dma_addr_t *dma_handle, gfp_t flag) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 519 | { |
| 520 | int result; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 521 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 522 | unsigned long virt_addr; |
| 523 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 524 | flag &= ~(__GFP_DMA | __GFP_HIGHMEM); |
| 525 | flag |= __GFP_ZERO; |
| 526 | |
| 527 | virt_addr = __get_free_pages(flag, get_order(size)); |
| 528 | |
| 529 | if (!virt_addr) { |
| 530 | pr_debug("%s:%d: get_free_pages failed\n", __func__, __LINE__); |
| 531 | goto clean_none; |
| 532 | } |
| 533 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 534 | result = ps3_dma_map(dev->d_region, virt_addr, size, dma_handle, |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 535 | CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | |
| 536 | CBE_IOPTE_SO_RW | CBE_IOPTE_M); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 537 | |
| 538 | if (result) { |
| 539 | pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
| 540 | __func__, __LINE__, result); |
| 541 | BUG_ON("check region type"); |
| 542 | goto clean_alloc; |
| 543 | } |
| 544 | |
| 545 | return (void*)virt_addr; |
| 546 | |
| 547 | clean_alloc: |
| 548 | free_pages(virt_addr, get_order(size)); |
| 549 | clean_none: |
| 550 | dma_handle = NULL; |
| 551 | return NULL; |
| 552 | } |
| 553 | |
| 554 | static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, |
| 555 | dma_addr_t dma_handle) |
| 556 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 557 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 558 | |
| 559 | ps3_dma_unmap(dev->d_region, dma_handle, size); |
| 560 | free_pages((unsigned long)vaddr, get_order(size)); |
| 561 | } |
| 562 | |
| 563 | /* Creates TCEs for a user provided buffer. The user buffer must be |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 564 | * contiguous real kernel storage (not vmalloc). The address passed here |
| 565 | * comprises a page address and offset into that page. The dma_addr_t |
| 566 | * returned will point to the same byte within the page as was passed in. |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 567 | */ |
| 568 | |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 569 | static dma_addr_t ps3_sb_map_page(struct device *_dev, struct page *page, |
| 570 | unsigned long offset, size_t size, enum dma_data_direction direction, |
| 571 | struct dma_attrs *attrs) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 572 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 573 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 574 | int result; |
Stephen Rothwell | 494fd07 | 2009-01-13 19:58:10 +0000 | [diff] [blame] | 575 | dma_addr_t bus_addr; |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 576 | void *ptr = page_address(page) + offset; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 577 | |
| 578 | result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 579 | &bus_addr, |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 580 | CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | |
| 581 | CBE_IOPTE_SO_RW | CBE_IOPTE_M); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 582 | |
| 583 | if (result) { |
| 584 | pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
| 585 | __func__, __LINE__, result); |
| 586 | } |
| 587 | |
| 588 | return bus_addr; |
| 589 | } |
| 590 | |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 591 | static dma_addr_t ps3_ioc0_map_page(struct device *_dev, struct page *page, |
| 592 | unsigned long offset, size_t size, |
| 593 | enum dma_data_direction direction, |
| 594 | struct dma_attrs *attrs) |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 595 | { |
| 596 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
| 597 | int result; |
Stephen Rothwell | 494fd07 | 2009-01-13 19:58:10 +0000 | [diff] [blame] | 598 | dma_addr_t bus_addr; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 599 | u64 iopte_flag; |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 600 | void *ptr = page_address(page) + offset; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 601 | |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 602 | iopte_flag = CBE_IOPTE_M; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 603 | switch (direction) { |
| 604 | case DMA_BIDIRECTIONAL: |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 605 | iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 606 | break; |
| 607 | case DMA_TO_DEVICE: |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 608 | iopte_flag |= CBE_IOPTE_PP_R | CBE_IOPTE_SO_R; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 609 | break; |
| 610 | case DMA_FROM_DEVICE: |
Geert Uytterhoeven | 5c6fc8d | 2009-06-10 04:38:45 +0000 | [diff] [blame] | 611 | iopte_flag |= CBE_IOPTE_PP_W | CBE_IOPTE_SO_RW; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 612 | break; |
| 613 | default: |
| 614 | /* not happned */ |
| 615 | BUG(); |
| 616 | }; |
| 617 | result = ps3_dma_map(dev->d_region, (unsigned long)ptr, size, |
| 618 | &bus_addr, iopte_flag); |
| 619 | |
| 620 | if (result) { |
| 621 | pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
| 622 | __func__, __LINE__, result); |
| 623 | } |
| 624 | return bus_addr; |
| 625 | } |
| 626 | |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 627 | static void ps3_unmap_page(struct device *_dev, dma_addr_t dma_addr, |
Mark Nelson | 3affedc | 2008-07-05 05:05:42 +1000 | [diff] [blame] | 628 | size_t size, enum dma_data_direction direction, struct dma_attrs *attrs) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 629 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 630 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 631 | int result; |
| 632 | |
| 633 | result = ps3_dma_unmap(dev->d_region, dma_addr, size); |
| 634 | |
| 635 | if (result) { |
| 636 | pr_debug("%s:%d: ps3_dma_unmap failed (%d)\n", |
| 637 | __func__, __LINE__, result); |
| 638 | } |
| 639 | } |
| 640 | |
Jens Axboe | d1ed455 | 2007-07-19 08:22:17 +0200 | [diff] [blame] | 641 | static int ps3_sb_map_sg(struct device *_dev, struct scatterlist *sgl, |
Mark Nelson | 3affedc | 2008-07-05 05:05:42 +1000 | [diff] [blame] | 642 | int nents, enum dma_data_direction direction, struct dma_attrs *attrs) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 643 | { |
| 644 | #if defined(CONFIG_PS3_DYNAMIC_DMA) |
| 645 | BUG_ON("do"); |
Geoff Levand | 35063bb | 2007-01-30 15:20:34 -0800 | [diff] [blame] | 646 | return -EPERM; |
| 647 | #else |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 648 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Jens Axboe | d1ed455 | 2007-07-19 08:22:17 +0200 | [diff] [blame] | 649 | struct scatterlist *sg; |
Stephen Rothwell | 435e0b2 | 2007-05-11 15:42:44 +1000 | [diff] [blame] | 650 | int i; |
| 651 | |
Jens Axboe | d1ed455 | 2007-07-19 08:22:17 +0200 | [diff] [blame] | 652 | for_each_sg(sgl, sg, nents, i) { |
Jens Axboe | 58b053e | 2007-10-22 20:02:46 +0200 | [diff] [blame] | 653 | int result = ps3_dma_map(dev->d_region, sg_phys(sg), |
| 654 | sg->length, &sg->dma_address, 0); |
Geoff Levand | 35063bb | 2007-01-30 15:20:34 -0800 | [diff] [blame] | 655 | |
| 656 | if (result) { |
| 657 | pr_debug("%s:%d: ps3_dma_map failed (%d)\n", |
| 658 | __func__, __LINE__, result); |
| 659 | return -EINVAL; |
| 660 | } |
| 661 | |
| 662 | sg->dma_length = sg->length; |
| 663 | } |
| 664 | |
| 665 | return nents; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 666 | #endif |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 667 | } |
| 668 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 669 | static int ps3_ioc0_map_sg(struct device *_dev, struct scatterlist *sg, |
| 670 | int nents, |
Mark Nelson | 3affedc | 2008-07-05 05:05:42 +1000 | [diff] [blame] | 671 | enum dma_data_direction direction, |
| 672 | struct dma_attrs *attrs) |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 673 | { |
| 674 | BUG(); |
| 675 | return 0; |
| 676 | } |
| 677 | |
| 678 | static void ps3_sb_unmap_sg(struct device *_dev, struct scatterlist *sg, |
Mark Nelson | 3affedc | 2008-07-05 05:05:42 +1000 | [diff] [blame] | 679 | int nents, enum dma_data_direction direction, struct dma_attrs *attrs) |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 680 | { |
| 681 | #if defined(CONFIG_PS3_DYNAMIC_DMA) |
| 682 | BUG_ON("do"); |
| 683 | #endif |
| 684 | } |
| 685 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 686 | static void ps3_ioc0_unmap_sg(struct device *_dev, struct scatterlist *sg, |
Mark Nelson | 3affedc | 2008-07-05 05:05:42 +1000 | [diff] [blame] | 687 | int nents, enum dma_data_direction direction, |
| 688 | struct dma_attrs *attrs) |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 689 | { |
| 690 | BUG(); |
| 691 | } |
| 692 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 693 | static int ps3_dma_supported(struct device *_dev, u64 mask) |
| 694 | { |
Yang Hongyang | 284901a | 2009-04-06 19:01:15 -0700 | [diff] [blame] | 695 | return mask >= DMA_BIT_MASK(32); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 696 | } |
| 697 | |
Milton Miller | d24f9c6 | 2011-06-24 09:05:24 +0000 | [diff] [blame] | 698 | static u64 ps3_dma_get_required_mask(struct device *_dev) |
| 699 | { |
| 700 | return DMA_BIT_MASK(32); |
| 701 | } |
| 702 | |
FUJITA Tomonori | 45223c5 | 2009-08-04 19:08:25 +0000 | [diff] [blame] | 703 | static struct dma_map_ops ps3_sb_dma_ops = { |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 704 | .alloc_coherent = ps3_alloc_coherent, |
| 705 | .free_coherent = ps3_free_coherent, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 706 | .map_sg = ps3_sb_map_sg, |
| 707 | .unmap_sg = ps3_sb_unmap_sg, |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 708 | .dma_supported = ps3_dma_supported, |
Milton Miller | d24f9c6 | 2011-06-24 09:05:24 +0000 | [diff] [blame] | 709 | .get_required_mask = ps3_dma_get_required_mask, |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 710 | .map_page = ps3_sb_map_page, |
| 711 | .unmap_page = ps3_unmap_page, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 712 | }; |
| 713 | |
FUJITA Tomonori | 45223c5 | 2009-08-04 19:08:25 +0000 | [diff] [blame] | 714 | static struct dma_map_ops ps3_ioc0_dma_ops = { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 715 | .alloc_coherent = ps3_alloc_coherent, |
| 716 | .free_coherent = ps3_free_coherent, |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 717 | .map_sg = ps3_ioc0_map_sg, |
| 718 | .unmap_sg = ps3_ioc0_unmap_sg, |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 719 | .dma_supported = ps3_dma_supported, |
Milton Miller | d24f9c6 | 2011-06-24 09:05:24 +0000 | [diff] [blame] | 720 | .get_required_mask = ps3_dma_get_required_mask, |
Mark Nelson | f9226d5 | 2008-10-27 20:38:08 +0000 | [diff] [blame] | 721 | .map_page = ps3_ioc0_map_page, |
| 722 | .unmap_page = ps3_unmap_page, |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 723 | }; |
| 724 | |
| 725 | /** |
| 726 | * ps3_system_bus_release_device - remove a device from the system bus |
| 727 | */ |
| 728 | |
| 729 | static void ps3_system_bus_release_device(struct device *_dev) |
| 730 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 731 | struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 732 | kfree(dev); |
| 733 | } |
| 734 | |
| 735 | /** |
| 736 | * ps3_system_bus_device_register - add a device to the system bus |
| 737 | * |
| 738 | * ps3_system_bus_device_register() expects the dev object to be allocated |
| 739 | * dynamically by the caller. The system bus takes ownership of the dev |
| 740 | * object and frees the object in ps3_system_bus_release_device(). |
| 741 | */ |
| 742 | |
| 743 | int ps3_system_bus_device_register(struct ps3_system_bus_device *dev) |
| 744 | { |
| 745 | int result; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 746 | static unsigned int dev_ioc0_count; |
| 747 | static unsigned int dev_sb_count; |
| 748 | static unsigned int dev_vuart_count; |
Geoff Levand | ed75700 | 2008-01-19 07:32:38 +1100 | [diff] [blame] | 749 | static unsigned int dev_lpm_count; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 750 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 751 | if (!dev->core.parent) |
| 752 | dev->core.parent = &ps3_system_bus; |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 753 | dev->core.bus = &ps3_system_bus_type; |
| 754 | dev->core.release = ps3_system_bus_release_device; |
| 755 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 756 | switch (dev->dev_type) { |
| 757 | case PS3_DEVICE_TYPE_IOC0: |
| 758 | dev->core.archdata.dma_ops = &ps3_ioc0_dma_ops; |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 759 | dev_set_name(&dev->core, "ioc0_%02x", ++dev_ioc0_count); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 760 | break; |
| 761 | case PS3_DEVICE_TYPE_SB: |
| 762 | dev->core.archdata.dma_ops = &ps3_sb_dma_ops; |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 763 | dev_set_name(&dev->core, "sb_%02x", ++dev_sb_count); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 764 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 765 | break; |
| 766 | case PS3_DEVICE_TYPE_VUART: |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 767 | dev_set_name(&dev->core, "vuart_%02x", ++dev_vuart_count); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 768 | break; |
Geoff Levand | ed75700 | 2008-01-19 07:32:38 +1100 | [diff] [blame] | 769 | case PS3_DEVICE_TYPE_LPM: |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 770 | dev_set_name(&dev->core, "lpm_%02x", ++dev_lpm_count); |
Geoff Levand | ed75700 | 2008-01-19 07:32:38 +1100 | [diff] [blame] | 771 | break; |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 772 | default: |
| 773 | BUG(); |
| 774 | }; |
| 775 | |
Grant Likely | d706c1b | 2010-04-13 16:12:28 -0700 | [diff] [blame] | 776 | dev->core.of_node = NULL; |
Becky Bruce | 8fae035 | 2008-09-08 09:09:54 +0000 | [diff] [blame] | 777 | set_dev_node(&dev->core, 0); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 778 | |
Kay Sievers | aab0d37 | 2008-12-04 10:02:56 -0800 | [diff] [blame] | 779 | pr_debug("%s:%d add %s\n", __func__, __LINE__, dev_name(&dev->core)); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 780 | |
| 781 | result = device_register(&dev->core); |
| 782 | return result; |
| 783 | } |
| 784 | |
| 785 | EXPORT_SYMBOL_GPL(ps3_system_bus_device_register); |
| 786 | |
| 787 | int ps3_system_bus_driver_register(struct ps3_system_bus_driver *drv) |
| 788 | { |
| 789 | int result; |
| 790 | |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 791 | pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
| 792 | |
| 793 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) |
| 794 | return -ENODEV; |
| 795 | |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 796 | drv->core.bus = &ps3_system_bus_type; |
| 797 | |
| 798 | result = driver_register(&drv->core); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 799 | pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 800 | return result; |
| 801 | } |
| 802 | |
| 803 | EXPORT_SYMBOL_GPL(ps3_system_bus_driver_register); |
| 804 | |
| 805 | void ps3_system_bus_driver_unregister(struct ps3_system_bus_driver *drv) |
| 806 | { |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 807 | pr_debug(" -> %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 808 | driver_unregister(&drv->core); |
Geoff Levand | 6bb5cf1 | 2007-06-16 07:52:02 +1000 | [diff] [blame] | 809 | pr_debug(" <- %s:%d: %s\n", __func__, __LINE__, drv->core.name); |
Geoff Levand | a3d4d64 | 2006-11-23 00:47:00 +0100 | [diff] [blame] | 810 | } |
| 811 | |
| 812 | EXPORT_SYMBOL_GPL(ps3_system_bus_driver_unregister); |