Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public |
| 3 | * License. See the file "COPYING" in the main directory of this archive |
| 4 | * for more details. |
| 5 | * |
| 6 | * Copyright (C) 2005 Silicon Graphics, Inc. All Rights Reserved. |
| 7 | */ |
| 8 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 9 | /* This file contains the master driver module for use by SGI IOC4 subdrivers. |
| 10 | * |
| 11 | * It allocates any resources shared between multiple subdevices, and |
| 12 | * provides accessor functions (where needed) and the like for those |
| 13 | * resources. It also provides a mechanism for the subdevice modules |
| 14 | * to support loading and unloading. |
| 15 | * |
| 16 | * Non-shared resources (e.g. external interrupt A_INT_OUT register page |
| 17 | * alias, serial port and UART registers) are handled by the subdevice |
| 18 | * modules themselves. |
| 19 | * |
| 20 | * This is all necessary because IOC4 is not implemented as a multi-function |
| 21 | * PCI device, but an amalgamation of disparate registers for several |
| 22 | * types of device (ATA, serial, external interrupts). The normal |
| 23 | * resource management in the kernel doesn't have quite the right interfaces |
| 24 | * to handle this situation (e.g. multiple modules can't claim the same |
| 25 | * PCI ID), thus this IOC4 master module. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | */ |
| 27 | |
| 28 | #include <linux/errno.h> |
| 29 | #include <linux/module.h> |
| 30 | #include <linux/pci.h> |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 31 | #include <linux/ioc4.h> |
Brent Casavant | d4c477c | 2005-06-21 17:16:01 -0700 | [diff] [blame] | 32 | #include <linux/mmtimer.h> |
| 33 | #include <linux/rtc.h> |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 34 | #include <linux/rwsem.h> |
Brent Casavant | d4c477c | 2005-06-21 17:16:01 -0700 | [diff] [blame] | 35 | #include <asm/sn/addrs.h> |
| 36 | #include <asm/sn/clksupport.h> |
| 37 | #include <asm/sn/shub_mmr.h> |
| 38 | |
| 39 | /*************** |
| 40 | * Definitions * |
| 41 | ***************/ |
| 42 | |
| 43 | /* Tweakable values */ |
| 44 | |
| 45 | /* PCI bus speed detection/calibration */ |
| 46 | #define IOC4_CALIBRATE_COUNT 63 /* Calibration cycle period */ |
| 47 | #define IOC4_CALIBRATE_CYCLES 256 /* Average over this many cycles */ |
| 48 | #define IOC4_CALIBRATE_DISCARD 2 /* Discard first few cycles */ |
| 49 | #define IOC4_CALIBRATE_LOW_MHZ 25 /* Lower bound on bus speed sanity */ |
| 50 | #define IOC4_CALIBRATE_HIGH_MHZ 75 /* Upper bound on bus speed sanity */ |
| 51 | #define IOC4_CALIBRATE_DEFAULT_MHZ 66 /* Assumed if sanity check fails */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 53 | /************************ |
| 54 | * Submodule management * |
| 55 | ************************/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 56 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 57 | static LIST_HEAD(ioc4_devices); |
| 58 | static DECLARE_RWSEM(ioc4_devices_rwsem); |
| 59 | |
| 60 | static LIST_HEAD(ioc4_submodules); |
| 61 | static DECLARE_RWSEM(ioc4_submodules_rwsem); |
| 62 | |
| 63 | /* Register an IOC4 submodule */ |
| 64 | int |
| 65 | ioc4_register_submodule(struct ioc4_submodule *is) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | { |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 67 | struct ioc4_driver_data *idd; |
| 68 | |
| 69 | down_write(&ioc4_submodules_rwsem); |
| 70 | list_add(&is->is_list, &ioc4_submodules); |
| 71 | up_write(&ioc4_submodules_rwsem); |
| 72 | |
| 73 | /* Initialize submodule for each IOC4 */ |
| 74 | if (!is->is_probe) |
| 75 | return 0; |
| 76 | |
| 77 | down_read(&ioc4_devices_rwsem); |
| 78 | list_for_each_entry(idd, &ioc4_devices, idd_list) { |
| 79 | if (is->is_probe(idd)) { |
| 80 | printk(KERN_WARNING |
| 81 | "%s: IOC4 submodule %s probe failed " |
| 82 | "for pci_dev %s", |
| 83 | __FUNCTION__, module_name(is->is_owner), |
| 84 | pci_name(idd->idd_pdev)); |
| 85 | } |
| 86 | } |
| 87 | up_read(&ioc4_devices_rwsem); |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | /* Unregister an IOC4 submodule */ |
| 93 | void |
| 94 | ioc4_unregister_submodule(struct ioc4_submodule *is) |
| 95 | { |
| 96 | struct ioc4_driver_data *idd; |
| 97 | |
| 98 | down_write(&ioc4_submodules_rwsem); |
| 99 | list_del(&is->is_list); |
| 100 | up_write(&ioc4_submodules_rwsem); |
| 101 | |
| 102 | /* Remove submodule for each IOC4 */ |
| 103 | if (!is->is_remove) |
| 104 | return; |
| 105 | |
| 106 | down_read(&ioc4_devices_rwsem); |
| 107 | list_for_each_entry(idd, &ioc4_devices, idd_list) { |
| 108 | if (is->is_remove(idd)) { |
| 109 | printk(KERN_WARNING |
| 110 | "%s: IOC4 submodule %s remove failed " |
| 111 | "for pci_dev %s.\n", |
| 112 | __FUNCTION__, module_name(is->is_owner), |
| 113 | pci_name(idd->idd_pdev)); |
| 114 | } |
| 115 | } |
| 116 | up_read(&ioc4_devices_rwsem); |
| 117 | } |
| 118 | |
| 119 | /********************* |
| 120 | * Device management * |
| 121 | *********************/ |
| 122 | |
Brent Casavant | d4c477c | 2005-06-21 17:16:01 -0700 | [diff] [blame] | 123 | #define IOC4_CALIBRATE_LOW_LIMIT \ |
| 124 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_LOW_MHZ) |
| 125 | #define IOC4_CALIBRATE_HIGH_LIMIT \ |
| 126 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_HIGH_MHZ) |
| 127 | #define IOC4_CALIBRATE_DEFAULT \ |
| 128 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_DEFAULT_MHZ) |
| 129 | |
| 130 | #define IOC4_CALIBRATE_END \ |
| 131 | (IOC4_CALIBRATE_CYCLES + IOC4_CALIBRATE_DISCARD) |
| 132 | |
| 133 | #define IOC4_INT_OUT_MODE_TOGGLE 0x7 /* Toggle INT_OUT every COUNT+1 ticks */ |
| 134 | |
| 135 | /* Determines external interrupt output clock period of the PCI bus an |
| 136 | * IOC4 is attached to. This value can be used to determine the PCI |
| 137 | * bus speed. |
| 138 | * |
| 139 | * IOC4 has a design feature that various internal timers are derived from |
| 140 | * the PCI bus clock. This causes IOC4 device drivers to need to take the |
| 141 | * bus speed into account when setting various register values (e.g. INT_OUT |
| 142 | * register COUNT field, UART divisors, etc). Since this information is |
| 143 | * needed by several subdrivers, it is determined by the main IOC4 driver, |
| 144 | * even though the following code utilizes external interrupt registers |
| 145 | * to perform the speed calculation. |
| 146 | */ |
| 147 | static void |
| 148 | ioc4_clock_calibrate(struct ioc4_driver_data *idd) |
| 149 | { |
| 150 | extern unsigned long sn_rtc_cycles_per_second; |
| 151 | union ioc4_int_out int_out; |
| 152 | union ioc4_gpcr gpcr; |
| 153 | unsigned int state, last_state = 1; |
| 154 | uint64_t start = 0, end, period; |
| 155 | unsigned int count = 0; |
| 156 | |
| 157 | /* Enable output */ |
| 158 | gpcr.raw = 0; |
| 159 | gpcr.fields.dir = IOC4_GPCR_DIR_0; |
| 160 | gpcr.fields.int_out_en = 1; |
| 161 | writel(gpcr.raw, &idd->idd_misc_regs->gpcr_s.raw); |
| 162 | |
| 163 | /* Reset to power-on state */ |
| 164 | writel(0, &idd->idd_misc_regs->int_out.raw); |
| 165 | mmiowb(); |
| 166 | |
| 167 | printk(KERN_INFO |
| 168 | "%s: Calibrating PCI bus speed " |
| 169 | "for pci_dev %s ... ", __FUNCTION__, pci_name(idd->idd_pdev)); |
| 170 | /* Set up square wave */ |
| 171 | int_out.raw = 0; |
| 172 | int_out.fields.count = IOC4_CALIBRATE_COUNT; |
| 173 | int_out.fields.mode = IOC4_INT_OUT_MODE_TOGGLE; |
| 174 | int_out.fields.diag = 0; |
| 175 | writel(int_out.raw, &idd->idd_misc_regs->int_out.raw); |
| 176 | mmiowb(); |
| 177 | |
| 178 | /* Check square wave period averaged over some number of cycles */ |
| 179 | do { |
| 180 | int_out.raw = readl(&idd->idd_misc_regs->int_out.raw); |
| 181 | state = int_out.fields.int_out; |
| 182 | if (!last_state && state) { |
| 183 | count++; |
| 184 | if (count == IOC4_CALIBRATE_END) { |
| 185 | end = rtc_time(); |
| 186 | break; |
| 187 | } else if (count == IOC4_CALIBRATE_DISCARD) |
| 188 | start = rtc_time(); |
| 189 | } |
| 190 | last_state = state; |
| 191 | } while (1); |
| 192 | |
| 193 | /* Calculation rearranged to preserve intermediate precision. |
| 194 | * Logically: |
| 195 | * 1. "end - start" gives us number of RTC cycles over all the |
| 196 | * square wave cycles measured. |
| 197 | * 2. Divide by number of square wave cycles to get number of |
| 198 | * RTC cycles per square wave cycle. |
| 199 | * 3. Divide by 2*(int_out.fields.count+1), which is the formula |
| 200 | * by which the IOC4 generates the square wave, to get the |
| 201 | * number of RTC cycles per IOC4 INT_OUT count. |
| 202 | * 4. Divide by sn_rtc_cycles_per_second to get seconds per |
| 203 | * count. |
| 204 | * 5. Multiply by 1E9 to get nanoseconds per count. |
| 205 | */ |
| 206 | period = ((end - start) * 1000000000) / |
| 207 | (IOC4_CALIBRATE_CYCLES * 2 * (IOC4_CALIBRATE_COUNT + 1) |
| 208 | * sn_rtc_cycles_per_second); |
| 209 | |
| 210 | /* Bounds check the result. */ |
| 211 | if (period > IOC4_CALIBRATE_LOW_LIMIT || |
| 212 | period < IOC4_CALIBRATE_HIGH_LIMIT) { |
| 213 | printk("failed. Assuming PCI clock ticks are %d ns.\n", |
| 214 | IOC4_CALIBRATE_DEFAULT / IOC4_EXTINT_COUNT_DIVISOR); |
| 215 | period = IOC4_CALIBRATE_DEFAULT; |
| 216 | } else { |
| 217 | printk("succeeded. PCI clock ticks are %ld ns.\n", |
| 218 | period / IOC4_EXTINT_COUNT_DIVISOR); |
| 219 | } |
| 220 | |
| 221 | /* Remember results. We store the extint clock period rather |
| 222 | * than the PCI clock period so that greater precision is |
| 223 | * retained. Divide by IOC4_EXTINT_COUNT_DIVISOR to get |
| 224 | * PCI clock period. |
| 225 | */ |
| 226 | idd->count_period = period; |
| 227 | } |
| 228 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 229 | /* Adds a new instance of an IOC4 card */ |
| 230 | static int |
| 231 | ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) |
| 232 | { |
| 233 | struct ioc4_driver_data *idd; |
| 234 | struct ioc4_submodule *is; |
| 235 | uint32_t pcmd; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 236 | int ret; |
| 237 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 238 | /* Enable IOC4 and take ownership of it */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | if ((ret = pci_enable_device(pdev))) { |
| 240 | printk(KERN_WARNING |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 241 | "%s: Failed to enable IOC4 device for pci_dev %s.\n", |
| 242 | __FUNCTION__, pci_name(pdev)); |
| 243 | goto out; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 244 | } |
| 245 | pci_set_master(pdev); |
| 246 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 247 | /* Set up per-IOC4 data */ |
| 248 | idd = kmalloc(sizeof(struct ioc4_driver_data), GFP_KERNEL); |
| 249 | if (!idd) { |
| 250 | printk(KERN_WARNING |
| 251 | "%s: Failed to allocate IOC4 data for pci_dev %s.\n", |
| 252 | __FUNCTION__, pci_name(pdev)); |
| 253 | ret = -ENODEV; |
| 254 | goto out_idd; |
| 255 | } |
| 256 | idd->idd_pdev = pdev; |
| 257 | idd->idd_pci_id = pci_id; |
| 258 | |
| 259 | /* Map IOC4 misc registers. These are shared between subdevices |
| 260 | * so the main IOC4 module manages them. |
| 261 | */ |
| 262 | idd->idd_bar0 = pci_resource_start(idd->idd_pdev, 0); |
| 263 | if (!idd->idd_bar0) { |
| 264 | printk(KERN_WARNING |
| 265 | "%s: Unable to find IOC4 misc resource " |
| 266 | "for pci_dev %s.\n", |
| 267 | __FUNCTION__, pci_name(idd->idd_pdev)); |
| 268 | ret = -ENODEV; |
| 269 | goto out_pci; |
| 270 | } |
| 271 | if (!request_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs), |
| 272 | "ioc4_misc")) { |
| 273 | printk(KERN_WARNING |
| 274 | "%s: Unable to request IOC4 misc region " |
| 275 | "for pci_dev %s.\n", |
| 276 | __FUNCTION__, pci_name(idd->idd_pdev)); |
| 277 | ret = -ENODEV; |
| 278 | goto out_pci; |
| 279 | } |
| 280 | idd->idd_misc_regs = ioremap(idd->idd_bar0, |
| 281 | sizeof(struct ioc4_misc_regs)); |
| 282 | if (!idd->idd_misc_regs) { |
| 283 | printk(KERN_WARNING |
| 284 | "%s: Unable to remap IOC4 misc region " |
| 285 | "for pci_dev %s.\n", |
| 286 | __FUNCTION__, pci_name(idd->idd_pdev)); |
| 287 | ret = -ENODEV; |
| 288 | goto out_misc_region; |
| 289 | } |
| 290 | |
| 291 | /* Failsafe portion of per-IOC4 initialization */ |
| 292 | |
| 293 | /* Initialize IOC4 */ |
| 294 | pci_read_config_dword(idd->idd_pdev, PCI_COMMAND, &pcmd); |
| 295 | pci_write_config_dword(idd->idd_pdev, PCI_COMMAND, |
| 296 | pcmd | PCI_COMMAND_PARITY | PCI_COMMAND_SERR); |
| 297 | |
Brent Casavant | d4c477c | 2005-06-21 17:16:01 -0700 | [diff] [blame] | 298 | /* Determine PCI clock */ |
| 299 | ioc4_clock_calibrate(idd); |
| 300 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 301 | /* Disable/clear all interrupts. Need to do this here lest |
| 302 | * one submodule request the shared IOC4 IRQ, but interrupt |
| 303 | * is generated by a different subdevice. |
| 304 | */ |
| 305 | /* Disable */ |
| 306 | writel(~0, &idd->idd_misc_regs->other_iec.raw); |
| 307 | writel(~0, &idd->idd_misc_regs->sio_iec); |
| 308 | /* Clear (i.e. acknowledge) */ |
| 309 | writel(~0, &idd->idd_misc_regs->other_ir.raw); |
| 310 | writel(~0, &idd->idd_misc_regs->sio_ir); |
| 311 | |
| 312 | /* Track PCI-device specific data */ |
| 313 | idd->idd_serial_data = NULL; |
| 314 | pci_set_drvdata(idd->idd_pdev, idd); |
| 315 | down_write(&ioc4_devices_rwsem); |
| 316 | list_add(&idd->idd_list, &ioc4_devices); |
| 317 | up_write(&ioc4_devices_rwsem); |
| 318 | |
| 319 | /* Add this IOC4 to all submodules */ |
| 320 | down_read(&ioc4_submodules_rwsem); |
| 321 | list_for_each_entry(is, &ioc4_submodules, is_list) { |
| 322 | if (is->is_probe && is->is_probe(idd)) { |
| 323 | printk(KERN_WARNING |
| 324 | "%s: IOC4 submodule 0x%s probe failed " |
| 325 | "for pci_dev %s.\n", |
| 326 | __FUNCTION__, module_name(is->is_owner), |
| 327 | pci_name(idd->idd_pdev)); |
| 328 | } |
| 329 | } |
| 330 | up_read(&ioc4_submodules_rwsem); |
| 331 | |
| 332 | return 0; |
| 333 | |
| 334 | out_misc_region: |
| 335 | release_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs)); |
| 336 | out_pci: |
| 337 | kfree(idd); |
| 338 | out_idd: |
| 339 | pci_disable_device(pdev); |
| 340 | out: |
| 341 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | } |
| 343 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 344 | /* Removes a particular instance of an IOC4 card. */ |
| 345 | static void |
| 346 | ioc4_remove(struct pci_dev *pdev) |
| 347 | { |
| 348 | struct ioc4_submodule *is; |
| 349 | struct ioc4_driver_data *idd; |
| 350 | |
| 351 | idd = pci_get_drvdata(pdev); |
| 352 | |
| 353 | /* Remove this IOC4 from all submodules */ |
| 354 | down_read(&ioc4_submodules_rwsem); |
| 355 | list_for_each_entry(is, &ioc4_submodules, is_list) { |
| 356 | if (is->is_remove && is->is_remove(idd)) { |
| 357 | printk(KERN_WARNING |
| 358 | "%s: IOC4 submodule 0x%s remove failed " |
| 359 | "for pci_dev %s.\n", |
| 360 | __FUNCTION__, module_name(is->is_owner), |
| 361 | pci_name(idd->idd_pdev)); |
| 362 | } |
| 363 | } |
| 364 | up_read(&ioc4_submodules_rwsem); |
| 365 | |
| 366 | /* Release resources */ |
| 367 | iounmap(idd->idd_misc_regs); |
| 368 | if (!idd->idd_bar0) { |
| 369 | printk(KERN_WARNING |
| 370 | "%s: Unable to get IOC4 misc mapping for pci_dev %s. " |
| 371 | "Device removal may be incomplete.\n", |
| 372 | __FUNCTION__, pci_name(idd->idd_pdev)); |
| 373 | } |
| 374 | release_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs)); |
| 375 | |
| 376 | /* Disable IOC4 and relinquish */ |
| 377 | pci_disable_device(pdev); |
| 378 | |
| 379 | /* Remove and free driver data */ |
| 380 | down_write(&ioc4_devices_rwsem); |
| 381 | list_del(&idd->idd_list); |
| 382 | up_write(&ioc4_devices_rwsem); |
| 383 | kfree(idd); |
| 384 | } |
| 385 | |
| 386 | static struct pci_device_id ioc4_id_table[] = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 387 | {PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC4, PCI_ANY_ID, |
| 388 | PCI_ANY_ID, 0x0b4000, 0xFFFFFF}, |
| 389 | {0} |
| 390 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 392 | static struct pci_driver __devinitdata ioc4_driver = { |
| 393 | .name = "IOC4", |
| 394 | .id_table = ioc4_id_table, |
| 395 | .probe = ioc4_probe, |
| 396 | .remove = ioc4_remove, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 397 | }; |
| 398 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 399 | MODULE_DEVICE_TABLE(pci, ioc4_id_table); |
| 400 | |
| 401 | /********************* |
| 402 | * Module management * |
| 403 | *********************/ |
| 404 | |
| 405 | /* Module load */ |
| 406 | static int __devinit |
| 407 | ioc4_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 408 | { |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 409 | return pci_register_driver(&ioc4_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 410 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 411 | |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 412 | /* Module unload */ |
| 413 | static void __devexit |
| 414 | ioc4_exit(void) |
| 415 | { |
| 416 | pci_unregister_driver(&ioc4_driver); |
| 417 | } |
| 418 | |
| 419 | module_init(ioc4_init); |
| 420 | module_exit(ioc4_exit); |
| 421 | |
| 422 | MODULE_AUTHOR("Brent Casavant - Silicon Graphics, Inc. <bcasavan@sgi.com>"); |
| 423 | MODULE_DESCRIPTION("PCI driver master module for SGI IOC4 Base-IO Card"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | MODULE_LICENSE("GPL"); |
Brent Casavant | 22329b5 | 2005-06-21 17:15:59 -0700 | [diff] [blame] | 425 | |
| 426 | EXPORT_SYMBOL(ioc4_register_submodule); |
| 427 | EXPORT_SYMBOL(ioc4_unregister_submodule); |