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736759ef | 1 | // SPDX-License-Identifier: GPL-2.0+ |
1da177e4 LT |
2 | /* |
3 | * PCI Hot Plug Controller Driver for RPA-compliant PPC64 platform. | |
4 | * Copyright (C) 2003 Linda Xie <lxie@us.ibm.com> | |
5 | * | |
6 | * All rights reserved. | |
7 | * | |
1da177e4 LT |
8 | * Send feedback to <lxie@us.ibm.com> |
9 | * | |
10 | */ | |
1da177e4 LT |
11 | #include <linux/kernel.h> |
12 | #include <linux/module.h> | |
13 | #include <linux/moduleparam.h> | |
b2851926 | 14 | #include <linux/of.h> |
1da177e4 | 15 | #include <linux/pci.h> |
7a54f25c | 16 | #include <linux/pci_hotplug.h> |
1da177e4 | 17 | #include <linux/smp.h> |
1da177e4 | 18 | #include <linux/init.h> |
b4a26be9 | 19 | #include <linux/vmalloc.h> |
2fcf3ae5 | 20 | #include <asm/firmware.h> |
1da177e4 LT |
21 | #include <asm/eeh.h> /* for eeh_add_device() */ |
22 | #include <asm/rtas.h> /* rtas_call */ | |
23 | #include <asm/pci-bridge.h> /* for pci_controller */ | |
b2851926 | 24 | #include <asm/prom.h> |
1da177e4 LT |
25 | #include "../pci.h" /* for pci_add_new_bus */ |
26 | /* and pci_do_scan_bus */ | |
27 | #include "rpaphp.h" | |
1da177e4 | 28 | |
90ab5ee9 | 29 | bool rpaphp_debug; |
1da177e4 | 30 | LIST_HEAD(rpaphp_slot_head); |
b7fe9434 | 31 | EXPORT_SYMBOL_GPL(rpaphp_slot_head); |
1da177e4 LT |
32 | |
33 | #define DRIVER_VERSION "0.1" | |
34 | #define DRIVER_AUTHOR "Linda Xie <lxie@us.ibm.com>" | |
35 | #define DRIVER_DESC "RPA HOT Plug PCI Controller Driver" | |
36 | ||
37 | #define MAX_LOC_CODE 128 | |
38 | ||
39 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
40 | MODULE_DESCRIPTION(DRIVER_DESC); | |
41 | MODULE_LICENSE("GPL"); | |
42 | ||
5d9bc1fa | 43 | module_param_named(debug, rpaphp_debug, bool, 0644); |
1da177e4 | 44 | |
1da177e4 LT |
45 | /** |
46 | * set_attention_status - set attention LED | |
26e6c66e RD |
47 | * @hotplug_slot: target &hotplug_slot |
48 | * @value: LED control value | |
49 | * | |
1da177e4 LT |
50 | * echo 0 > attention -- set LED OFF |
51 | * echo 1 > attention -- set LED ON | |
52 | * echo 2 > attention -- set LED ID(identify, light is blinking) | |
1da177e4 LT |
53 | */ |
54 | static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 value) | |
55 | { | |
c02929c2 | 56 | int rc; |
125450f8 | 57 | struct slot *slot = to_slot(hotplug_slot); |
1da177e4 | 58 | |
1da177e4 LT |
59 | switch (value) { |
60 | case 0: | |
1da177e4 | 61 | case 1: |
1da177e4 | 62 | case 2: |
c02929c2 LV |
63 | break; |
64 | default: | |
65 | value = 1; | |
1da177e4 LT |
66 | break; |
67 | } | |
c02929c2 LV |
68 | |
69 | rc = rtas_set_indicator(DR_INDICATOR, slot->index, value); | |
70 | if (!rc) | |
a7da2161 | 71 | slot->attention_status = value; |
c02929c2 LV |
72 | |
73 | return rc; | |
1da177e4 LT |
74 | } |
75 | ||
76 | /** | |
77 | * get_power_status - get power status of a slot | |
78 | * @hotplug_slot: slot to get status | |
79 | * @value: pointer to store status | |
1da177e4 | 80 | */ |
3c78bc61 | 81 | static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value) |
1da177e4 | 82 | { |
427310ff | 83 | int retval, level; |
125450f8 | 84 | struct slot *slot = to_slot(hotplug_slot); |
1da177e4 | 85 | |
ff3ce480 | 86 | retval = rtas_get_power_level(slot->power_domain, &level); |
427310ff LV |
87 | if (!retval) |
88 | *value = level; | |
1da177e4 LT |
89 | return retval; |
90 | } | |
91 | ||
92 | /** | |
93 | * get_attention_status - get attention LED status | |
26e6c66e RD |
94 | * @hotplug_slot: slot to get status |
95 | * @value: pointer to store status | |
1da177e4 | 96 | */ |
3c78bc61 | 97 | static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value) |
1da177e4 | 98 | { |
125450f8 | 99 | struct slot *slot = to_slot(hotplug_slot); |
a7da2161 | 100 | *value = slot->attention_status; |
ebf42c0e | 101 | return 0; |
1da177e4 LT |
102 | } |
103 | ||
3c78bc61 | 104 | static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) |
1da177e4 | 105 | { |
125450f8 | 106 | struct slot *slot = to_slot(hotplug_slot); |
bf0af511 | 107 | int rc, state; |
1da177e4 | 108 | |
bf0af511 | 109 | rc = rpaphp_get_sensor_state(slot, &state); |
bf0af511 LV |
110 | |
111 | *value = NOT_VALID; | |
112 | if (rc) | |
113 | return rc; | |
114 | ||
115 | if (state == EMPTY) | |
116 | *value = EMPTY; | |
117 | else if (state == PRESENT) | |
118 | *value = slot->state; | |
119 | ||
120 | return 0; | |
1da177e4 LT |
121 | } |
122 | ||
3749c51a | 123 | static enum pci_bus_speed get_max_bus_speed(struct slot *slot) |
1da177e4 | 124 | { |
3749c51a | 125 | enum pci_bus_speed speed; |
1da177e4 LT |
126 | switch (slot->type) { |
127 | case 1: | |
128 | case 2: | |
129 | case 3: | |
130 | case 4: | |
131 | case 5: | |
132 | case 6: | |
3749c51a | 133 | speed = PCI_SPEED_33MHz; /* speed for case 1-6 */ |
1da177e4 LT |
134 | break; |
135 | case 7: | |
136 | case 8: | |
3749c51a | 137 | speed = PCI_SPEED_66MHz; |
1da177e4 LT |
138 | break; |
139 | case 11: | |
140 | case 14: | |
3749c51a | 141 | speed = PCI_SPEED_66MHz_PCIX; |
1da177e4 LT |
142 | break; |
143 | case 12: | |
144 | case 15: | |
3749c51a | 145 | speed = PCI_SPEED_100MHz_PCIX; |
1da177e4 LT |
146 | break; |
147 | case 13: | |
148 | case 16: | |
3749c51a | 149 | speed = PCI_SPEED_133MHz_PCIX; |
1da177e4 LT |
150 | break; |
151 | default: | |
3749c51a | 152 | speed = PCI_SPEED_UNKNOWN; |
1da177e4 | 153 | break; |
1da177e4 | 154 | } |
3749c51a MW |
155 | |
156 | return speed; | |
1da177e4 LT |
157 | } |
158 | ||
07376867 TD |
159 | static int get_children_props(struct device_node *dn, const __be32 **drc_indexes, |
160 | const __be32 **drc_names, const __be32 **drc_types, | |
161 | const __be32 **drc_power_domains) | |
1da177e4 | 162 | { |
07376867 | 163 | const __be32 *indexes, *names, *types, *domains; |
1da177e4 | 164 | |
40cd3a45 SR |
165 | indexes = of_get_property(dn, "ibm,drc-indexes", NULL); |
166 | names = of_get_property(dn, "ibm,drc-names", NULL); | |
167 | types = of_get_property(dn, "ibm,drc-types", NULL); | |
168 | domains = of_get_property(dn, "ibm,drc-power-domains", NULL); | |
1da177e4 LT |
169 | |
170 | if (!indexes || !names || !types || !domains) { | |
171 | /* Slot does not have dynamically-removable children */ | |
172 | return -EINVAL; | |
173 | } | |
174 | if (drc_indexes) | |
175 | *drc_indexes = indexes; | |
176 | if (drc_names) | |
177 | /* &drc_names[1] contains NULL terminated slot names */ | |
178 | *drc_names = names; | |
179 | if (drc_types) | |
180 | /* &drc_types[1] contains NULL terminated slot types */ | |
181 | *drc_types = types; | |
182 | if (drc_power_domains) | |
183 | *drc_power_domains = domains; | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
2fcf3ae5 MB |
188 | |
189 | /* Verify the existence of 'drc_name' and/or 'drc_type' within the | |
9d09e5a9 BH |
190 | * current node. First obtain its my-drc-index property. Next, |
191 | * obtain the DRC info from its parent. Use the my-drc-index for | |
2fcf3ae5 | 192 | * correlation, and obtain/validate the requested properties. |
1da177e4 | 193 | */ |
2fcf3ae5 MB |
194 | |
195 | static int rpaphp_check_drc_props_v1(struct device_node *dn, char *drc_name, | |
196 | char *drc_type, unsigned int my_index) | |
1da177e4 | 197 | { |
2fcf3ae5 | 198 | char *name_tmp, *type_tmp; |
07376867 TD |
199 | const __be32 *indexes, *names; |
200 | const __be32 *types, *domains; | |
1da177e4 LT |
201 | int i, rc; |
202 | ||
1da177e4 LT |
203 | rc = get_children_props(dn->parent, &indexes, &names, &types, &domains); |
204 | if (rc < 0) { | |
205 | return -EINVAL; | |
206 | } | |
207 | ||
208 | name_tmp = (char *) &names[1]; | |
209 | type_tmp = (char *) &types[1]; | |
210 | ||
211 | /* Iterate through parent properties, looking for my-drc-index */ | |
761ce533 | 212 | for (i = 0; i < be32_to_cpu(indexes[0]); i++) { |
07376867 | 213 | if (be32_to_cpu(indexes[i + 1]) == my_index) |
2fcf3ae5 MB |
214 | break; |
215 | ||
1da177e4 LT |
216 | name_tmp += (strlen(name_tmp) + 1); |
217 | type_tmp += (strlen(type_tmp) + 1); | |
218 | } | |
219 | ||
2fcf3ae5 MB |
220 | if (((drc_name == NULL) || (drc_name && !strcmp(drc_name, name_tmp))) && |
221 | ((drc_type == NULL) || (drc_type && !strcmp(drc_type, type_tmp)))) | |
222 | return 0; | |
223 | ||
1da177e4 LT |
224 | return -EINVAL; |
225 | } | |
2fcf3ae5 MB |
226 | |
227 | static int rpaphp_check_drc_props_v2(struct device_node *dn, char *drc_name, | |
228 | char *drc_type, unsigned int my_index) | |
229 | { | |
230 | struct property *info; | |
231 | unsigned int entries; | |
232 | struct of_drc_info drc; | |
233 | const __be32 *value; | |
234 | char cell_drc_name[MAX_DRC_NAME_LEN]; | |
0df3e421 | 235 | int j; |
2fcf3ae5 MB |
236 | |
237 | info = of_find_property(dn->parent, "ibm,drc-info", NULL); | |
238 | if (info == NULL) | |
239 | return -EINVAL; | |
240 | ||
241 | value = of_prop_next_u32(info, NULL, &entries); | |
242 | if (!value) | |
243 | return -EINVAL; | |
9723c25f TD |
244 | else |
245 | value++; | |
2fcf3ae5 MB |
246 | |
247 | for (j = 0; j < entries; j++) { | |
248 | of_read_drc_info_cell(&info, &value, &drc); | |
249 | ||
250 | /* Should now know end of current entry */ | |
251 | ||
0df3e421 | 252 | /* Found it */ |
4f9f2d3d TD |
253 | if (my_index >= drc.drc_index_start && my_index <= drc.last_drc_index) { |
254 | int index = my_index - drc.drc_index_start; | |
0df3e421 | 255 | sprintf(cell_drc_name, "%s%d", drc.drc_name_prefix, |
4f9f2d3d | 256 | drc.drc_name_suffix_start + index); |
0df3e421 NC |
257 | break; |
258 | } | |
2fcf3ae5 | 259 | } |
2fcf3ae5 MB |
260 | |
261 | if (((drc_name == NULL) || | |
262 | (drc_name && !strcmp(drc_name, cell_drc_name))) && | |
263 | ((drc_type == NULL) || | |
264 | (drc_type && !strcmp(drc_type, drc.drc_type)))) | |
265 | return 0; | |
266 | ||
267 | return -EINVAL; | |
268 | } | |
269 | ||
270 | int rpaphp_check_drc_props(struct device_node *dn, char *drc_name, | |
271 | char *drc_type) | |
272 | { | |
07376867 | 273 | const __be32 *my_index; |
2fcf3ae5 MB |
274 | |
275 | my_index = of_get_property(dn, "ibm,my-drc-index", NULL); | |
276 | if (!my_index) { | |
277 | /* Node isn't DLPAR/hotplug capable */ | |
278 | return -EINVAL; | |
279 | } | |
280 | ||
9195ee1a | 281 | if (of_property_present(dn->parent, "ibm,drc-info")) |
2fcf3ae5 | 282 | return rpaphp_check_drc_props_v2(dn, drc_name, drc_type, |
07376867 | 283 | be32_to_cpu(*my_index)); |
2fcf3ae5 MB |
284 | else |
285 | return rpaphp_check_drc_props_v1(dn, drc_name, drc_type, | |
07376867 | 286 | be32_to_cpu(*my_index)); |
2fcf3ae5 MB |
287 | } |
288 | EXPORT_SYMBOL_GPL(rpaphp_check_drc_props); | |
289 | ||
1da177e4 LT |
290 | |
291 | static int is_php_type(char *drc_type) | |
292 | { | |
1da177e4 LT |
293 | char *endptr; |
294 | ||
295 | /* PCI Hotplug nodes have an integer for drc_type */ | |
9475af08 | 296 | simple_strtoul(drc_type, &endptr, 10); |
1da177e4 LT |
297 | if (endptr == drc_type) |
298 | return 0; | |
299 | ||
300 | return 1; | |
301 | } | |
302 | ||
da65944b LV |
303 | /** |
304 | * is_php_dn() - return 1 if this is a hotpluggable pci slot, else 0 | |
26e6c66e RD |
305 | * @dn: target &device_node |
306 | * @indexes: passed to get_children_props() | |
307 | * @names: passed to get_children_props() | |
308 | * @types: returned from get_children_props() | |
309 | * @power_domains: | |
da65944b LV |
310 | * |
311 | * This routine will return true only if the device node is | |
312 | * a hotpluggable slot. This routine will return false | |
313 | * for built-in pci slots (even when the built-in slots are | |
314 | * dlparable.) | |
315 | */ | |
07376867 TD |
316 | static int is_php_dn(struct device_node *dn, const __be32 **indexes, |
317 | const __be32 **names, const __be32 **types, | |
318 | const __be32 **power_domains) | |
1da177e4 | 319 | { |
07376867 | 320 | const __be32 *drc_types; |
1da177e4 LT |
321 | int rc; |
322 | ||
323 | rc = get_children_props(dn, indexes, names, &drc_types, power_domains); | |
da65944b LV |
324 | if (rc < 0) |
325 | return 0; | |
1da177e4 | 326 | |
da65944b LV |
327 | if (!is_php_type((char *) &drc_types[1])) |
328 | return 0; | |
329 | ||
330 | *types = drc_types; | |
331 | return 1; | |
1da177e4 LT |
332 | } |
333 | ||
efeda8fa TD |
334 | static int rpaphp_drc_info_add_slot(struct device_node *dn) |
335 | { | |
336 | struct slot *slot; | |
337 | struct property *info; | |
338 | struct of_drc_info drc; | |
339 | char drc_name[MAX_DRC_NAME_LEN]; | |
340 | const __be32 *cur; | |
341 | u32 count; | |
342 | int retval = 0; | |
343 | ||
344 | info = of_find_property(dn, "ibm,drc-info", NULL); | |
345 | if (!info) | |
346 | return 0; | |
347 | ||
348 | cur = of_prop_next_u32(info, NULL, &count); | |
349 | if (cur) | |
350 | cur++; | |
351 | else | |
352 | return 0; | |
353 | ||
354 | of_read_drc_info_cell(&info, &cur, &drc); | |
355 | if (!is_php_type(drc.drc_type)) | |
356 | return 0; | |
357 | ||
358 | sprintf(drc_name, "%s%d", drc.drc_name_prefix, drc.drc_name_suffix_start); | |
359 | ||
360 | slot = alloc_slot_struct(dn, drc.drc_index_start, drc_name, drc.drc_power_domain); | |
361 | if (!slot) | |
362 | return -ENOMEM; | |
363 | ||
364 | slot->type = simple_strtoul(drc.drc_type, NULL, 10); | |
365 | retval = rpaphp_enable_slot(slot); | |
366 | if (!retval) | |
367 | retval = rpaphp_register_slot(slot); | |
368 | ||
369 | if (retval) | |
370 | dealloc_slot_struct(slot); | |
371 | ||
372 | return retval; | |
373 | } | |
374 | ||
375 | static int rpaphp_drc_add_slot(struct device_node *dn) | |
1da177e4 LT |
376 | { |
377 | struct slot *slot; | |
378 | int retval = 0; | |
56d8456b | 379 | int i; |
07376867 | 380 | const __be32 *indexes, *names, *types, *power_domains; |
1da177e4 LT |
381 | char *name, *type; |
382 | ||
da65944b | 383 | /* If this is not a hotplug slot, return without doing anything. */ |
bf8cbae4 LV |
384 | if (!is_php_dn(dn, &indexes, &names, &types, &power_domains)) |
385 | return 0; | |
386 | ||
b63773a8 | 387 | dbg("Entry %s: dn=%pOF\n", __func__, dn); |
1da177e4 | 388 | |
1da177e4 | 389 | /* register PCI devices */ |
bf8cbae4 LV |
390 | name = (char *) &names[1]; |
391 | type = (char *) &types[1]; | |
761ce533 LD |
392 | for (i = 0; i < be32_to_cpu(indexes[0]); i++) { |
393 | int index; | |
bf8cbae4 | 394 | |
761ce533 LD |
395 | index = be32_to_cpu(indexes[i + 1]); |
396 | slot = alloc_slot_struct(dn, index, name, | |
397 | be32_to_cpu(power_domains[i + 1])); | |
bf8cbae4 LV |
398 | if (!slot) |
399 | return -ENOMEM; | |
400 | ||
401 | slot->type = simple_strtoul(type, NULL, 10); | |
f7625980 | 402 | |
bf8cbae4 | 403 | dbg("Found drc-index:0x%x drc-name:%s drc-type:%s\n", |
761ce533 | 404 | index, name, type); |
1da177e4 | 405 | |
fea54b8c | 406 | retval = rpaphp_enable_slot(slot); |
6f79eb74 LV |
407 | if (!retval) |
408 | retval = rpaphp_register_slot(slot); | |
409 | ||
31be7586 LV |
410 | if (retval) |
411 | dealloc_slot_struct(slot); | |
412 | ||
bf8cbae4 LV |
413 | name += strlen(name) + 1; |
414 | type += strlen(type) + 1; | |
1da177e4 | 415 | } |
66bef8c0 | 416 | dbg("%s - Exit: rc[%d]\n", __func__, retval); |
31be7586 LV |
417 | |
418 | /* XXX FIXME: reports a failure only if last entry in loop failed */ | |
1da177e4 LT |
419 | return retval; |
420 | } | |
efeda8fa TD |
421 | |
422 | /** | |
423 | * rpaphp_add_slot -- declare a hotplug slot to the hotplug subsystem. | |
424 | * @dn: device node of slot | |
425 | * | |
426 | * This subroutine will register a hotpluggable slot with the | |
427 | * PCI hotplug infrastructure. This routine is typically called | |
428 | * during boot time, if the hotplug slots are present at boot time, | |
429 | * or is called later, by the dlpar add code, if the slot is | |
430 | * being dynamically added during runtime. | |
431 | * | |
432 | * If the device node points at an embedded (built-in) slot, this | |
433 | * routine will just return without doing anything, since embedded | |
434 | * slots cannot be hotplugged. | |
435 | * | |
436 | * To remove a slot, it suffices to call rpaphp_deregister_slot(). | |
437 | */ | |
438 | int rpaphp_add_slot(struct device_node *dn) | |
439 | { | |
adc9fbcd | 440 | if (!of_node_name_eq(dn, "pci")) |
efeda8fa TD |
441 | return 0; |
442 | ||
9195ee1a | 443 | if (of_property_present(dn, "ibm,drc-info")) |
efeda8fa TD |
444 | return rpaphp_drc_info_add_slot(dn); |
445 | else | |
446 | return rpaphp_drc_add_slot(dn); | |
447 | } | |
b7fe9434 | 448 | EXPORT_SYMBOL_GPL(rpaphp_add_slot); |
1da177e4 | 449 | |
1da177e4 LT |
450 | static void __exit cleanup_slots(void) |
451 | { | |
2ac83ccc | 452 | struct slot *slot, *next; |
1da177e4 LT |
453 | |
454 | /* | |
455 | * Unregister all of our slots with the pci_hotplug subsystem, | |
456 | * and free up all memory that we had allocated. | |
1da177e4 LT |
457 | */ |
458 | ||
2ac83ccc GT |
459 | list_for_each_entry_safe(slot, next, &rpaphp_slot_head, |
460 | rpaphp_slot_list) { | |
1da177e4 | 461 | list_del(&slot->rpaphp_slot_list); |
125450f8 | 462 | pci_hp_deregister(&slot->hotplug_slot); |
51bbf9be | 463 | dealloc_slot_struct(slot); |
1da177e4 | 464 | } |
1da177e4 LT |
465 | } |
466 | ||
467 | static int __init rpaphp_init(void) | |
468 | { | |
ccdb8ed3 | 469 | struct device_node *dn; |
5eeb8c63 | 470 | |
1da177e4 | 471 | info(DRIVER_DESC " version: " DRIVER_VERSION "\n"); |
5eeb8c63 | 472 | |
ccdb8ed3 | 473 | for_each_node_by_name(dn, "pci") |
5eeb8c63 JR |
474 | rpaphp_add_slot(dn); |
475 | ||
5eeb8c63 | 476 | return 0; |
1da177e4 LT |
477 | } |
478 | ||
479 | static void __exit rpaphp_exit(void) | |
480 | { | |
481 | cleanup_slots(); | |
482 | } | |
483 | ||
ac1f0e99 | 484 | static int enable_slot(struct hotplug_slot *hotplug_slot) |
1da177e4 | 485 | { |
125450f8 | 486 | struct slot *slot = to_slot(hotplug_slot); |
e06b80b7 | 487 | int state; |
488 | int retval; | |
1da177e4 | 489 | |
e06b80b7 | 490 | if (slot->state == CONFIGURED) |
491 | return 0; | |
492 | ||
493 | retval = rpaphp_get_sensor_state(slot, &state); | |
494 | if (retval) | |
495 | return retval; | |
496 | ||
497 | if (state == PRESENT) { | |
b6eebb09 | 498 | pseries_eeh_init_edev_recursive(PCI_DN(slot->dn)); |
a4b4f61d | 499 | |
c4ec84c7 | 500 | pci_lock_rescan_remove(); |
bd251b89 | 501 | pci_hp_add_devices(slot->bus); |
c4ec84c7 | 502 | pci_unlock_rescan_remove(); |
e06b80b7 | 503 | slot->state = CONFIGURED; |
504 | } else if (state == EMPTY) { | |
505 | slot->state = EMPTY; | |
506 | } else { | |
66bef8c0 | 507 | err("%s: slot[%s] is in invalid state\n", __func__, slot->name); |
e06b80b7 | 508 | slot->state = NOT_VALID; |
509 | return -EINVAL; | |
1da177e4 | 510 | } |
3749c51a MW |
511 | |
512 | slot->bus->max_bus_speed = get_max_bus_speed(slot); | |
e06b80b7 | 513 | return 0; |
514 | } | |
515 | ||
ac1f0e99 | 516 | static int disable_slot(struct hotplug_slot *hotplug_slot) |
e06b80b7 | 517 | { |
125450f8 | 518 | struct slot *slot = to_slot(hotplug_slot); |
8fe64399 | 519 | if (slot->state == NOT_CONFIGURED) |
520 | return -EINVAL; | |
1da177e4 | 521 | |
c4ec84c7 | 522 | pci_lock_rescan_remove(); |
bd251b89 | 523 | pci_hp_remove_devices(slot->bus); |
c4ec84c7 | 524 | pci_unlock_rescan_remove(); |
b4a26be9 BH |
525 | vm_unmap_aliases(); |
526 | ||
8fe64399 | 527 | slot->state = NOT_CONFIGURED; |
528 | return 0; | |
529 | } | |
530 | ||
81c4b5bf | 531 | const struct hotplug_slot_ops rpaphp_hotplug_slot_ops = { |
b64a71ab | 532 | .enable_slot = enable_slot, |
533 | .disable_slot = disable_slot, | |
534 | .set_attention_status = set_attention_status, | |
535 | .get_power_status = get_power_status, | |
536 | .get_attention_status = get_attention_status, | |
537 | .get_adapter_status = get_adapter_status, | |
b64a71ab | 538 | }; |
539 | ||
1da177e4 LT |
540 | module_init(rpaphp_init); |
541 | module_exit(rpaphp_exit); |