Commit | Line | Data |
---|---|---|
1da177e4 LT |
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 | * | |
107d5a72 | 6 | * Copyright (C) 2005-2006 Silicon Graphics, Inc. All Rights Reserved. |
1da177e4 LT |
7 | */ |
8 | ||
22329b51 BC |
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. | |
1da177e4 LT |
26 | */ |
27 | ||
28 | #include <linux/errno.h> | |
29 | #include <linux/module.h> | |
30 | #include <linux/pci.h> | |
22329b51 | 31 | #include <linux/ioc4.h> |
107d5a72 | 32 | #include <linux/ktime.h> |
5a0e3ad6 | 33 | #include <linux/slab.h> |
6e586f32 | 34 | #include <linux/mutex.h> |
107d5a72 | 35 | #include <linux/time.h> |
2099c99e | 36 | #include <asm/io.h> |
d4c477ca BC |
37 | |
38 | /*************** | |
39 | * Definitions * | |
40 | ***************/ | |
41 | ||
42 | /* Tweakable values */ | |
43 | ||
44 | /* PCI bus speed detection/calibration */ | |
107d5a72 | 45 | #define IOC4_CALIBRATE_COUNT 63 /* Calibration cycle period */ |
d4c477ca BC |
46 | #define IOC4_CALIBRATE_CYCLES 256 /* Average over this many cycles */ |
47 | #define IOC4_CALIBRATE_DISCARD 2 /* Discard first few cycles */ | |
48 | #define IOC4_CALIBRATE_LOW_MHZ 25 /* Lower bound on bus speed sanity */ | |
49 | #define IOC4_CALIBRATE_HIGH_MHZ 75 /* Upper bound on bus speed sanity */ | |
50 | #define IOC4_CALIBRATE_DEFAULT_MHZ 66 /* Assumed if sanity check fails */ | |
1da177e4 | 51 | |
22329b51 BC |
52 | /************************ |
53 | * Submodule management * | |
54 | ************************/ | |
1da177e4 | 55 | |
6e586f32 | 56 | static DEFINE_MUTEX(ioc4_mutex); |
22329b51 | 57 | |
6e586f32 | 58 | static LIST_HEAD(ioc4_devices); |
22329b51 | 59 | static LIST_HEAD(ioc4_submodules); |
22329b51 BC |
60 | |
61 | /* Register an IOC4 submodule */ | |
62 | int | |
63 | ioc4_register_submodule(struct ioc4_submodule *is) | |
64 | { | |
65 | struct ioc4_driver_data *idd; | |
66 | ||
6e586f32 | 67 | mutex_lock(&ioc4_mutex); |
22329b51 | 68 | list_add(&is->is_list, &ioc4_submodules); |
22329b51 BC |
69 | |
70 | /* Initialize submodule for each IOC4 */ | |
71 | if (!is->is_probe) | |
6e586f32 | 72 | goto out; |
22329b51 | 73 | |
22329b51 BC |
74 | list_for_each_entry(idd, &ioc4_devices, idd_list) { |
75 | if (is->is_probe(idd)) { | |
76 | printk(KERN_WARNING | |
77 | "%s: IOC4 submodule %s probe failed " | |
78 | "for pci_dev %s", | |
6e574195 | 79 | __func__, module_name(is->is_owner), |
22329b51 BC |
80 | pci_name(idd->idd_pdev)); |
81 | } | |
82 | } | |
6e586f32 JS |
83 | out: |
84 | mutex_unlock(&ioc4_mutex); | |
22329b51 BC |
85 | return 0; |
86 | } | |
87 | ||
88 | /* Unregister an IOC4 submodule */ | |
89 | void | |
90 | ioc4_unregister_submodule(struct ioc4_submodule *is) | |
1da177e4 | 91 | { |
22329b51 BC |
92 | struct ioc4_driver_data *idd; |
93 | ||
6e586f32 | 94 | mutex_lock(&ioc4_mutex); |
22329b51 | 95 | list_del(&is->is_list); |
22329b51 BC |
96 | |
97 | /* Remove submodule for each IOC4 */ | |
98 | if (!is->is_remove) | |
6e586f32 | 99 | goto out; |
22329b51 | 100 | |
22329b51 BC |
101 | list_for_each_entry(idd, &ioc4_devices, idd_list) { |
102 | if (is->is_remove(idd)) { | |
103 | printk(KERN_WARNING | |
104 | "%s: IOC4 submodule %s remove failed " | |
105 | "for pci_dev %s.\n", | |
6e574195 | 106 | __func__, module_name(is->is_owner), |
22329b51 BC |
107 | pci_name(idd->idd_pdev)); |
108 | } | |
109 | } | |
6e586f32 JS |
110 | out: |
111 | mutex_unlock(&ioc4_mutex); | |
22329b51 BC |
112 | } |
113 | ||
114 | /********************* | |
115 | * Device management * | |
116 | *********************/ | |
117 | ||
d4c477ca BC |
118 | #define IOC4_CALIBRATE_LOW_LIMIT \ |
119 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_LOW_MHZ) | |
120 | #define IOC4_CALIBRATE_HIGH_LIMIT \ | |
121 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_HIGH_MHZ) | |
122 | #define IOC4_CALIBRATE_DEFAULT \ | |
123 | (1000*IOC4_EXTINT_COUNT_DIVISOR/IOC4_CALIBRATE_DEFAULT_MHZ) | |
124 | ||
125 | #define IOC4_CALIBRATE_END \ | |
126 | (IOC4_CALIBRATE_CYCLES + IOC4_CALIBRATE_DISCARD) | |
127 | ||
128 | #define IOC4_INT_OUT_MODE_TOGGLE 0x7 /* Toggle INT_OUT every COUNT+1 ticks */ | |
129 | ||
130 | /* Determines external interrupt output clock period of the PCI bus an | |
131 | * IOC4 is attached to. This value can be used to determine the PCI | |
132 | * bus speed. | |
133 | * | |
134 | * IOC4 has a design feature that various internal timers are derived from | |
135 | * the PCI bus clock. This causes IOC4 device drivers to need to take the | |
136 | * bus speed into account when setting various register values (e.g. INT_OUT | |
137 | * register COUNT field, UART divisors, etc). Since this information is | |
138 | * needed by several subdrivers, it is determined by the main IOC4 driver, | |
139 | * even though the following code utilizes external interrupt registers | |
140 | * to perform the speed calculation. | |
141 | */ | |
2ea5d35a | 142 | static void __devinit |
d4c477ca BC |
143 | ioc4_clock_calibrate(struct ioc4_driver_data *idd) |
144 | { | |
d4c477ca BC |
145 | union ioc4_int_out int_out; |
146 | union ioc4_gpcr gpcr; | |
147 | unsigned int state, last_state = 1; | |
107d5a72 BC |
148 | struct timespec start_ts, end_ts; |
149 | uint64_t start, end, period; | |
d4c477ca BC |
150 | unsigned int count = 0; |
151 | ||
152 | /* Enable output */ | |
153 | gpcr.raw = 0; | |
154 | gpcr.fields.dir = IOC4_GPCR_DIR_0; | |
155 | gpcr.fields.int_out_en = 1; | |
156 | writel(gpcr.raw, &idd->idd_misc_regs->gpcr_s.raw); | |
157 | ||
158 | /* Reset to power-on state */ | |
159 | writel(0, &idd->idd_misc_regs->int_out.raw); | |
160 | mmiowb(); | |
161 | ||
d4c477ca BC |
162 | /* Set up square wave */ |
163 | int_out.raw = 0; | |
164 | int_out.fields.count = IOC4_CALIBRATE_COUNT; | |
165 | int_out.fields.mode = IOC4_INT_OUT_MODE_TOGGLE; | |
166 | int_out.fields.diag = 0; | |
167 | writel(int_out.raw, &idd->idd_misc_regs->int_out.raw); | |
168 | mmiowb(); | |
169 | ||
170 | /* Check square wave period averaged over some number of cycles */ | |
171 | do { | |
172 | int_out.raw = readl(&idd->idd_misc_regs->int_out.raw); | |
173 | state = int_out.fields.int_out; | |
174 | if (!last_state && state) { | |
175 | count++; | |
176 | if (count == IOC4_CALIBRATE_END) { | |
107d5a72 | 177 | ktime_get_ts(&end_ts); |
d4c477ca BC |
178 | break; |
179 | } else if (count == IOC4_CALIBRATE_DISCARD) | |
107d5a72 | 180 | ktime_get_ts(&start_ts); |
d4c477ca BC |
181 | } |
182 | last_state = state; | |
183 | } while (1); | |
184 | ||
185 | /* Calculation rearranged to preserve intermediate precision. | |
186 | * Logically: | |
107d5a72 BC |
187 | * 1. "end - start" gives us the measurement period over all |
188 | * the square wave cycles. | |
189 | * 2. Divide by number of square wave cycles to get the period | |
190 | * of a square wave cycle. | |
d4c477ca BC |
191 | * 3. Divide by 2*(int_out.fields.count+1), which is the formula |
192 | * by which the IOC4 generates the square wave, to get the | |
107d5a72 | 193 | * period of an IOC4 INT_OUT count. |
d4c477ca | 194 | */ |
107d5a72 BC |
195 | end = end_ts.tv_sec * NSEC_PER_SEC + end_ts.tv_nsec; |
196 | start = start_ts.tv_sec * NSEC_PER_SEC + start_ts.tv_nsec; | |
197 | period = (end - start) / | |
198 | (IOC4_CALIBRATE_CYCLES * 2 * (IOC4_CALIBRATE_COUNT + 1)); | |
d4c477ca BC |
199 | |
200 | /* Bounds check the result. */ | |
201 | if (period > IOC4_CALIBRATE_LOW_LIMIT || | |
202 | period < IOC4_CALIBRATE_HIGH_LIMIT) { | |
f5befceb BC |
203 | printk(KERN_INFO |
204 | "IOC4 %s: Clock calibration failed. Assuming" | |
205 | "PCI clock is %d ns.\n", | |
206 | pci_name(idd->idd_pdev), | |
d4c477ca BC |
207 | IOC4_CALIBRATE_DEFAULT / IOC4_EXTINT_COUNT_DIVISOR); |
208 | period = IOC4_CALIBRATE_DEFAULT; | |
209 | } else { | |
59f14800 BC |
210 | u64 ns = period; |
211 | ||
212 | do_div(ns, IOC4_EXTINT_COUNT_DIVISOR); | |
f5befceb | 213 | printk(KERN_DEBUG |
760fe9ad RD |
214 | "IOC4 %s: PCI clock is %llu ns.\n", |
215 | pci_name(idd->idd_pdev), (unsigned long long)ns); | |
d4c477ca BC |
216 | } |
217 | ||
218 | /* Remember results. We store the extint clock period rather | |
219 | * than the PCI clock period so that greater precision is | |
220 | * retained. Divide by IOC4_EXTINT_COUNT_DIVISOR to get | |
221 | * PCI clock period. | |
222 | */ | |
223 | idd->count_period = period; | |
224 | } | |
225 | ||
f5befceb BC |
226 | /* There are three variants of IOC4 cards: IO9, IO10, and PCI-RT. |
227 | * Each brings out different combinations of IOC4 signals, thus. | |
228 | * the IOC4 subdrivers need to know to which we're attached. | |
229 | * | |
230 | * We look for the presence of a SCSI (IO9) or SATA (IO10) controller | |
231 | * on the same PCI bus at slot number 3 to differentiate IO9 from IO10. | |
232 | * If neither is present, it's a PCI-RT. | |
233 | */ | |
2ea5d35a | 234 | static unsigned int __devinit |
f5befceb BC |
235 | ioc4_variant(struct ioc4_driver_data *idd) |
236 | { | |
237 | struct pci_dev *pdev = NULL; | |
238 | int found = 0; | |
239 | ||
240 | /* IO9: Look for a QLogic ISP 12160 at the same bus and slot 3. */ | |
241 | do { | |
242 | pdev = pci_get_device(PCI_VENDOR_ID_QLOGIC, | |
243 | PCI_DEVICE_ID_QLOGIC_ISP12160, pdev); | |
244 | if (pdev && | |
245 | idd->idd_pdev->bus->number == pdev->bus->number && | |
246 | 3 == PCI_SLOT(pdev->devfn)) | |
247 | found = 1; | |
f5befceb | 248 | } while (pdev && !found); |
90d8dabf JL |
249 | if (NULL != pdev) { |
250 | pci_dev_put(pdev); | |
f5befceb | 251 | return IOC4_VARIANT_IO9; |
90d8dabf | 252 | } |
f5befceb BC |
253 | |
254 | /* IO10: Look for a Vitesse VSC 7174 at the same bus and slot 3. */ | |
255 | pdev = NULL; | |
256 | do { | |
257 | pdev = pci_get_device(PCI_VENDOR_ID_VITESSE, | |
258 | PCI_DEVICE_ID_VITESSE_VSC7174, pdev); | |
259 | if (pdev && | |
260 | idd->idd_pdev->bus->number == pdev->bus->number && | |
261 | 3 == PCI_SLOT(pdev->devfn)) | |
262 | found = 1; | |
f5befceb | 263 | } while (pdev && !found); |
90d8dabf JL |
264 | if (NULL != pdev) { |
265 | pci_dev_put(pdev); | |
f5befceb | 266 | return IOC4_VARIANT_IO10; |
90d8dabf | 267 | } |
f5befceb BC |
268 | |
269 | /* PCI-RT: No SCSI/SATA controller will be present */ | |
270 | return IOC4_VARIANT_PCI_RT; | |
271 | } | |
272 | ||
1fc6e987 | 273 | static void |
08adefd4 BC |
274 | ioc4_load_modules(struct work_struct *work) |
275 | { | |
08adefd4 | 276 | request_module("sgiioc4"); |
08adefd4 BC |
277 | } |
278 | ||
883624a0 TH |
279 | static DECLARE_WORK(ioc4_load_modules_work, ioc4_load_modules); |
280 | ||
22329b51 | 281 | /* Adds a new instance of an IOC4 card */ |
2ea5d35a | 282 | static int __devinit |
22329b51 BC |
283 | ioc4_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id) |
284 | { | |
285 | struct ioc4_driver_data *idd; | |
286 | struct ioc4_submodule *is; | |
287 | uint32_t pcmd; | |
1da177e4 LT |
288 | int ret; |
289 | ||
22329b51 | 290 | /* Enable IOC4 and take ownership of it */ |
1da177e4 LT |
291 | if ((ret = pci_enable_device(pdev))) { |
292 | printk(KERN_WARNING | |
22329b51 | 293 | "%s: Failed to enable IOC4 device for pci_dev %s.\n", |
6e574195 | 294 | __func__, pci_name(pdev)); |
22329b51 | 295 | goto out; |
1da177e4 LT |
296 | } |
297 | pci_set_master(pdev); | |
298 | ||
22329b51 BC |
299 | /* Set up per-IOC4 data */ |
300 | idd = kmalloc(sizeof(struct ioc4_driver_data), GFP_KERNEL); | |
301 | if (!idd) { | |
302 | printk(KERN_WARNING | |
303 | "%s: Failed to allocate IOC4 data for pci_dev %s.\n", | |
6e574195 | 304 | __func__, pci_name(pdev)); |
22329b51 BC |
305 | ret = -ENODEV; |
306 | goto out_idd; | |
307 | } | |
308 | idd->idd_pdev = pdev; | |
309 | idd->idd_pci_id = pci_id; | |
310 | ||
311 | /* Map IOC4 misc registers. These are shared between subdevices | |
312 | * so the main IOC4 module manages them. | |
313 | */ | |
314 | idd->idd_bar0 = pci_resource_start(idd->idd_pdev, 0); | |
315 | if (!idd->idd_bar0) { | |
316 | printk(KERN_WARNING | |
317 | "%s: Unable to find IOC4 misc resource " | |
318 | "for pci_dev %s.\n", | |
6e574195 | 319 | __func__, pci_name(idd->idd_pdev)); |
22329b51 BC |
320 | ret = -ENODEV; |
321 | goto out_pci; | |
322 | } | |
52c9ae0a | 323 | if (!request_mem_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs), |
22329b51 BC |
324 | "ioc4_misc")) { |
325 | printk(KERN_WARNING | |
326 | "%s: Unable to request IOC4 misc region " | |
327 | "for pci_dev %s.\n", | |
6e574195 | 328 | __func__, pci_name(idd->idd_pdev)); |
22329b51 BC |
329 | ret = -ENODEV; |
330 | goto out_pci; | |
331 | } | |
332 | idd->idd_misc_regs = ioremap(idd->idd_bar0, | |
333 | sizeof(struct ioc4_misc_regs)); | |
334 | if (!idd->idd_misc_regs) { | |
335 | printk(KERN_WARNING | |
336 | "%s: Unable to remap IOC4 misc region " | |
337 | "for pci_dev %s.\n", | |
6e574195 | 338 | __func__, pci_name(idd->idd_pdev)); |
22329b51 BC |
339 | ret = -ENODEV; |
340 | goto out_misc_region; | |
341 | } | |
342 | ||
343 | /* Failsafe portion of per-IOC4 initialization */ | |
344 | ||
f5befceb BC |
345 | /* Detect card variant */ |
346 | idd->idd_variant = ioc4_variant(idd); | |
347 | printk(KERN_INFO "IOC4 %s: %s card detected.\n", pci_name(pdev), | |
348 | idd->idd_variant == IOC4_VARIANT_IO9 ? "IO9" : | |
349 | idd->idd_variant == IOC4_VARIANT_PCI_RT ? "PCI-RT" : | |
350 | idd->idd_variant == IOC4_VARIANT_IO10 ? "IO10" : "unknown"); | |
351 | ||
22329b51 BC |
352 | /* Initialize IOC4 */ |
353 | pci_read_config_dword(idd->idd_pdev, PCI_COMMAND, &pcmd); | |
354 | pci_write_config_dword(idd->idd_pdev, PCI_COMMAND, | |
355 | pcmd | PCI_COMMAND_PARITY | PCI_COMMAND_SERR); | |
356 | ||
d4c477ca BC |
357 | /* Determine PCI clock */ |
358 | ioc4_clock_calibrate(idd); | |
359 | ||
22329b51 BC |
360 | /* Disable/clear all interrupts. Need to do this here lest |
361 | * one submodule request the shared IOC4 IRQ, but interrupt | |
362 | * is generated by a different subdevice. | |
363 | */ | |
364 | /* Disable */ | |
365 | writel(~0, &idd->idd_misc_regs->other_iec.raw); | |
366 | writel(~0, &idd->idd_misc_regs->sio_iec); | |
367 | /* Clear (i.e. acknowledge) */ | |
368 | writel(~0, &idd->idd_misc_regs->other_ir.raw); | |
369 | writel(~0, &idd->idd_misc_regs->sio_ir); | |
370 | ||
371 | /* Track PCI-device specific data */ | |
372 | idd->idd_serial_data = NULL; | |
373 | pci_set_drvdata(idd->idd_pdev, idd); | |
6e586f32 JS |
374 | |
375 | mutex_lock(&ioc4_mutex); | |
8683dc99 | 376 | list_add_tail(&idd->idd_list, &ioc4_devices); |
22329b51 BC |
377 | |
378 | /* Add this IOC4 to all submodules */ | |
22329b51 BC |
379 | list_for_each_entry(is, &ioc4_submodules, is_list) { |
380 | if (is->is_probe && is->is_probe(idd)) { | |
381 | printk(KERN_WARNING | |
382 | "%s: IOC4 submodule 0x%s probe failed " | |
383 | "for pci_dev %s.\n", | |
6e574195 | 384 | __func__, module_name(is->is_owner), |
22329b51 BC |
385 | pci_name(idd->idd_pdev)); |
386 | } | |
387 | } | |
6e586f32 | 388 | mutex_unlock(&ioc4_mutex); |
22329b51 | 389 | |
08adefd4 BC |
390 | /* Request sgiioc4 IDE driver on boards that bring that functionality |
391 | * off of IOC4. The root filesystem may be hosted on a drive connected | |
392 | * to IOC4, so we need to make sure the sgiioc4 driver is loaded as it | |
393 | * won't be picked up by modprobes due to the ioc4 module owning the | |
394 | * PCI device. | |
395 | */ | |
396 | if (idd->idd_variant != IOC4_VARIANT_PCI_RT) { | |
883624a0 TH |
397 | /* Request the module from a work procedure as the modprobe |
398 | * goes out to a userland helper and that will hang if done | |
399 | * directly from ioc4_probe(). | |
400 | */ | |
401 | printk(KERN_INFO "IOC4 loading sgiioc4 submodule\n"); | |
402 | schedule_work(&ioc4_load_modules_work); | |
08adefd4 BC |
403 | } |
404 | ||
22329b51 BC |
405 | return 0; |
406 | ||
407 | out_misc_region: | |
52c9ae0a | 408 | release_mem_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs)); |
22329b51 BC |
409 | out_pci: |
410 | kfree(idd); | |
411 | out_idd: | |
412 | pci_disable_device(pdev); | |
413 | out: | |
414 | return ret; | |
1da177e4 LT |
415 | } |
416 | ||
22329b51 | 417 | /* Removes a particular instance of an IOC4 card. */ |
2ea5d35a | 418 | static void __devexit |
22329b51 BC |
419 | ioc4_remove(struct pci_dev *pdev) |
420 | { | |
421 | struct ioc4_submodule *is; | |
422 | struct ioc4_driver_data *idd; | |
423 | ||
424 | idd = pci_get_drvdata(pdev); | |
425 | ||
426 | /* Remove this IOC4 from all submodules */ | |
6e586f32 | 427 | mutex_lock(&ioc4_mutex); |
22329b51 BC |
428 | list_for_each_entry(is, &ioc4_submodules, is_list) { |
429 | if (is->is_remove && is->is_remove(idd)) { | |
430 | printk(KERN_WARNING | |
431 | "%s: IOC4 submodule 0x%s remove failed " | |
432 | "for pci_dev %s.\n", | |
6e574195 | 433 | __func__, module_name(is->is_owner), |
22329b51 BC |
434 | pci_name(idd->idd_pdev)); |
435 | } | |
436 | } | |
6e586f32 | 437 | mutex_unlock(&ioc4_mutex); |
22329b51 BC |
438 | |
439 | /* Release resources */ | |
440 | iounmap(idd->idd_misc_regs); | |
441 | if (!idd->idd_bar0) { | |
442 | printk(KERN_WARNING | |
443 | "%s: Unable to get IOC4 misc mapping for pci_dev %s. " | |
444 | "Device removal may be incomplete.\n", | |
6e574195 | 445 | __func__, pci_name(idd->idd_pdev)); |
22329b51 | 446 | } |
52c9ae0a | 447 | release_mem_region(idd->idd_bar0, sizeof(struct ioc4_misc_regs)); |
22329b51 BC |
448 | |
449 | /* Disable IOC4 and relinquish */ | |
450 | pci_disable_device(pdev); | |
451 | ||
452 | /* Remove and free driver data */ | |
6e586f32 | 453 | mutex_lock(&ioc4_mutex); |
22329b51 | 454 | list_del(&idd->idd_list); |
6e586f32 | 455 | mutex_unlock(&ioc4_mutex); |
22329b51 BC |
456 | kfree(idd); |
457 | } | |
458 | ||
459 | static struct pci_device_id ioc4_id_table[] = { | |
1da177e4 LT |
460 | {PCI_VENDOR_ID_SGI, PCI_DEVICE_ID_SGI_IOC4, PCI_ANY_ID, |
461 | PCI_ANY_ID, 0x0b4000, 0xFFFFFF}, | |
462 | {0} | |
463 | }; | |
1da177e4 | 464 | |
85bd8434 | 465 | static struct pci_driver ioc4_driver = { |
22329b51 BC |
466 | .name = "IOC4", |
467 | .id_table = ioc4_id_table, | |
468 | .probe = ioc4_probe, | |
2ea5d35a | 469 | .remove = __devexit_p(ioc4_remove), |
1da177e4 LT |
470 | }; |
471 | ||
22329b51 BC |
472 | MODULE_DEVICE_TABLE(pci, ioc4_id_table); |
473 | ||
474 | /********************* | |
475 | * Module management * | |
476 | *********************/ | |
477 | ||
478 | /* Module load */ | |
2ea5d35a | 479 | static int __init |
22329b51 | 480 | ioc4_init(void) |
1da177e4 | 481 | { |
22329b51 BC |
482 | return pci_register_driver(&ioc4_driver); |
483 | } | |
1da177e4 | 484 | |
22329b51 | 485 | /* Module unload */ |
2ea5d35a | 486 | static void __exit |
22329b51 BC |
487 | ioc4_exit(void) |
488 | { | |
08adefd4 | 489 | /* Ensure ioc4_load_modules() has completed before exiting */ |
883624a0 | 490 | flush_work_sync(&ioc4_load_modules_work); |
22329b51 | 491 | pci_unregister_driver(&ioc4_driver); |
1da177e4 | 492 | } |
1da177e4 | 493 | |
22329b51 BC |
494 | module_init(ioc4_init); |
495 | module_exit(ioc4_exit); | |
496 | ||
497 | MODULE_AUTHOR("Brent Casavant - Silicon Graphics, Inc. <bcasavan@sgi.com>"); | |
498 | MODULE_DESCRIPTION("PCI driver master module for SGI IOC4 Base-IO Card"); | |
1da177e4 | 499 | MODULE_LICENSE("GPL"); |
22329b51 BC |
500 | |
501 | EXPORT_SYMBOL(ioc4_register_submodule); | |
502 | EXPORT_SYMBOL(ioc4_unregister_submodule); |