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1da177e4 LT |
1 | /* |
2 | * IBM Hot Plug Controller Driver | |
3 | * | |
4 | * Written By: Tong Yu, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2001,2003 Greg Kroah-Hartman (greg@kroah.com) | |
7 | * Copyright (C) 2001-2003 IBM Corp. | |
8 | * | |
9 | * All rights reserved. | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or (at | |
14 | * your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or | |
19 | * NON INFRINGEMENT. See the GNU General Public License for more | |
20 | * details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
25 | * | |
26 | * Send feedback to <gregkh@us.ibm.com> | |
27 | * | |
28 | */ | |
29 | ||
30 | #include <linux/module.h> | |
1da177e4 LT |
31 | #include <linux/errno.h> |
32 | #include <linux/mm.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/pci.h> | |
35 | #include <linux/list.h> | |
36 | #include <linux/init.h> | |
37 | #include "ibmphp.h" | |
38 | ||
39 | /* | |
40 | * POST builds data blocks(in this data block definition, a char-1 | |
41 | * byte, short(or word)-2 byte, long(dword)-4 byte) in the Extended | |
42 | * BIOS Data Area which describe the configuration of the hot-plug | |
43 | * controllers and resources used by the PCI Hot-Plug devices. | |
44 | * | |
45 | * This file walks EBDA, maps data block from physical addr, | |
46 | * reconstruct linked lists about all system resource(MEM, PFM, IO) | |
47 | * already assigned by POST, as well as linked lists about hot plug | |
48 | * controllers (ctlr#, slot#, bus&slot features...) | |
49 | */ | |
50 | ||
51 | /* Global lists */ | |
52 | LIST_HEAD (ibmphp_ebda_pci_rsrc_head); | |
53 | LIST_HEAD (ibmphp_slot_head); | |
54 | ||
55 | /* Local variables */ | |
56 | static struct ebda_hpc_list *hpc_list_ptr; | |
57 | static struct ebda_rsrc_list *rsrc_list_ptr; | |
58 | static struct rio_table_hdr *rio_table_ptr = NULL; | |
59 | static LIST_HEAD (ebda_hpc_head); | |
60 | static LIST_HEAD (bus_info_head); | |
61 | static LIST_HEAD (rio_vg_head); | |
62 | static LIST_HEAD (rio_lo_head); | |
63 | static LIST_HEAD (opt_vg_head); | |
64 | static LIST_HEAD (opt_lo_head); | |
65 | static void __iomem *io_mem; | |
66 | ||
67 | /* Local functions */ | |
68 | static int ebda_rsrc_controller (void); | |
69 | static int ebda_rsrc_rsrc (void); | |
70 | static int ebda_rio_table (void); | |
71 | ||
72 | static struct ebda_hpc_list * __init alloc_ebda_hpc_list (void) | |
73 | { | |
f5afe806 | 74 | return kzalloc(sizeof(struct ebda_hpc_list), GFP_KERNEL); |
1da177e4 LT |
75 | } |
76 | ||
77 | static struct controller *alloc_ebda_hpc (u32 slot_count, u32 bus_count) | |
78 | { | |
79 | struct controller *controller; | |
80 | struct ebda_hpc_slot *slots; | |
81 | struct ebda_hpc_bus *buses; | |
82 | ||
f5afe806 | 83 | controller = kzalloc(sizeof(struct controller), GFP_KERNEL); |
1da177e4 LT |
84 | if (!controller) |
85 | goto error; | |
1da177e4 | 86 | |
f5afe806 | 87 | slots = kcalloc(slot_count, sizeof(struct ebda_hpc_slot), GFP_KERNEL); |
1da177e4 LT |
88 | if (!slots) |
89 | goto error_contr; | |
1da177e4 LT |
90 | controller->slots = slots; |
91 | ||
f5afe806 | 92 | buses = kcalloc(bus_count, sizeof(struct ebda_hpc_bus), GFP_KERNEL); |
1da177e4 LT |
93 | if (!buses) |
94 | goto error_slots; | |
1da177e4 LT |
95 | controller->buses = buses; |
96 | ||
97 | return controller; | |
98 | error_slots: | |
99 | kfree(controller->slots); | |
100 | error_contr: | |
101 | kfree(controller); | |
102 | error: | |
103 | return NULL; | |
104 | } | |
105 | ||
106 | static void free_ebda_hpc (struct controller *controller) | |
107 | { | |
108 | kfree (controller->slots); | |
109 | kfree (controller->buses); | |
110 | kfree (controller); | |
111 | } | |
112 | ||
113 | static struct ebda_rsrc_list * __init alloc_ebda_rsrc_list (void) | |
114 | { | |
f5afe806 | 115 | return kzalloc(sizeof(struct ebda_rsrc_list), GFP_KERNEL); |
1da177e4 LT |
116 | } |
117 | ||
118 | static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc (void) | |
119 | { | |
f5afe806 | 120 | return kzalloc(sizeof(struct ebda_pci_rsrc), GFP_KERNEL); |
1da177e4 LT |
121 | } |
122 | ||
123 | static void __init print_bus_info (void) | |
124 | { | |
125 | struct bus_info *ptr; | |
1da177e4 | 126 | |
2fd39aa7 | 127 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
66bef8c0 HH |
128 | debug ("%s - slot_min = %x\n", __func__, ptr->slot_min); |
129 | debug ("%s - slot_max = %x\n", __func__, ptr->slot_max); | |
130 | debug ("%s - slot_count = %x\n", __func__, ptr->slot_count); | |
131 | debug ("%s - bus# = %x\n", __func__, ptr->busno); | |
132 | debug ("%s - current_speed = %x\n", __func__, ptr->current_speed); | |
133 | debug ("%s - controller_id = %x\n", __func__, ptr->controller_id); | |
1da177e4 | 134 | |
66bef8c0 HH |
135 | debug ("%s - slots_at_33_conv = %x\n", __func__, ptr->slots_at_33_conv); |
136 | debug ("%s - slots_at_66_conv = %x\n", __func__, ptr->slots_at_66_conv); | |
137 | debug ("%s - slots_at_66_pcix = %x\n", __func__, ptr->slots_at_66_pcix); | |
138 | debug ("%s - slots_at_100_pcix = %x\n", __func__, ptr->slots_at_100_pcix); | |
139 | debug ("%s - slots_at_133_pcix = %x\n", __func__, ptr->slots_at_133_pcix); | |
1da177e4 LT |
140 | |
141 | } | |
142 | } | |
143 | ||
144 | static void print_lo_info (void) | |
145 | { | |
146 | struct rio_detail *ptr; | |
1da177e4 | 147 | debug ("print_lo_info ----\n"); |
2fd39aa7 | 148 | list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) { |
66bef8c0 HH |
149 | debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id); |
150 | debug ("%s - rio_type = %x\n", __func__, ptr->rio_type); | |
151 | debug ("%s - owner_id = %x\n", __func__, ptr->owner_id); | |
152 | debug ("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num); | |
153 | debug ("%s - wpindex = %x\n", __func__, ptr->wpindex); | |
154 | debug ("%s - chassis_num = %x\n", __func__, ptr->chassis_num); | |
1da177e4 LT |
155 | |
156 | } | |
157 | } | |
158 | ||
159 | static void print_vg_info (void) | |
160 | { | |
161 | struct rio_detail *ptr; | |
66bef8c0 | 162 | debug ("%s ---\n", __func__); |
2fd39aa7 | 163 | list_for_each_entry(ptr, &rio_vg_head, rio_detail_list) { |
66bef8c0 HH |
164 | debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id); |
165 | debug ("%s - rio_type = %x\n", __func__, ptr->rio_type); | |
166 | debug ("%s - owner_id = %x\n", __func__, ptr->owner_id); | |
167 | debug ("%s - first_slot_num = %x\n", __func__, ptr->first_slot_num); | |
168 | debug ("%s - wpindex = %x\n", __func__, ptr->wpindex); | |
169 | debug ("%s - chassis_num = %x\n", __func__, ptr->chassis_num); | |
1da177e4 LT |
170 | |
171 | } | |
172 | } | |
173 | ||
174 | static void __init print_ebda_pci_rsrc (void) | |
175 | { | |
176 | struct ebda_pci_rsrc *ptr; | |
1da177e4 | 177 | |
2fd39aa7 | 178 | list_for_each_entry(ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) { |
1da177e4 | 179 | debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", |
66bef8c0 | 180 | __func__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr); |
1da177e4 LT |
181 | } |
182 | } | |
183 | ||
184 | static void __init print_ibm_slot (void) | |
185 | { | |
186 | struct slot *ptr; | |
1da177e4 | 187 | |
2fd39aa7 | 188 | list_for_each_entry(ptr, &ibmphp_slot_head, ibm_slot_list) { |
66bef8c0 | 189 | debug ("%s - slot_number: %x\n", __func__, ptr->number); |
1da177e4 LT |
190 | } |
191 | } | |
192 | ||
193 | static void __init print_opt_vg (void) | |
194 | { | |
195 | struct opt_rio *ptr; | |
66bef8c0 | 196 | debug ("%s ---\n", __func__); |
2fd39aa7 | 197 | list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { |
66bef8c0 HH |
198 | debug ("%s - rio_type %x\n", __func__, ptr->rio_type); |
199 | debug ("%s - chassis_num: %x\n", __func__, ptr->chassis_num); | |
200 | debug ("%s - first_slot_num: %x\n", __func__, ptr->first_slot_num); | |
201 | debug ("%s - middle_num: %x\n", __func__, ptr->middle_num); | |
1da177e4 LT |
202 | } |
203 | } | |
204 | ||
205 | static void __init print_ebda_hpc (void) | |
206 | { | |
207 | struct controller *hpc_ptr; | |
1da177e4 LT |
208 | u16 index; |
209 | ||
2fd39aa7 | 210 | list_for_each_entry(hpc_ptr, &ebda_hpc_head, ebda_hpc_list) { |
1da177e4 | 211 | for (index = 0; index < hpc_ptr->slot_count; index++) { |
66bef8c0 HH |
212 | debug ("%s - physical slot#: %x\n", __func__, hpc_ptr->slots[index].slot_num); |
213 | debug ("%s - pci bus# of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_bus_num); | |
214 | debug ("%s - index into ctlr addr: %x\n", __func__, hpc_ptr->slots[index].ctl_index); | |
215 | debug ("%s - cap of the slot: %x\n", __func__, hpc_ptr->slots[index].slot_cap); | |
1da177e4 LT |
216 | } |
217 | ||
218 | for (index = 0; index < hpc_ptr->bus_count; index++) { | |
66bef8c0 | 219 | debug ("%s - bus# of each bus controlled by this ctlr: %x\n", __func__, hpc_ptr->buses[index].bus_num); |
1da177e4 LT |
220 | } |
221 | ||
66bef8c0 | 222 | debug ("%s - type of hpc: %x\n", __func__, hpc_ptr->ctlr_type); |
1da177e4 LT |
223 | switch (hpc_ptr->ctlr_type) { |
224 | case 1: | |
66bef8c0 HH |
225 | debug ("%s - bus: %x\n", __func__, hpc_ptr->u.pci_ctlr.bus); |
226 | debug ("%s - dev_fun: %x\n", __func__, hpc_ptr->u.pci_ctlr.dev_fun); | |
227 | debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
228 | break; |
229 | ||
230 | case 0: | |
66bef8c0 HH |
231 | debug ("%s - io_start: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_start); |
232 | debug ("%s - io_end: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_end); | |
233 | debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
234 | break; |
235 | ||
236 | case 2: | |
237 | case 4: | |
66bef8c0 HH |
238 | debug ("%s - wpegbbar: %lx\n", __func__, hpc_ptr->u.wpeg_ctlr.wpegbbar); |
239 | debug ("%s - i2c_addr: %x\n", __func__, hpc_ptr->u.wpeg_ctlr.i2c_addr); | |
240 | debug ("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
241 | break; |
242 | } | |
243 | } | |
244 | } | |
245 | ||
246 | int __init ibmphp_access_ebda (void) | |
247 | { | |
b0fc889c | 248 | u8 format, num_ctlrs, rio_complete, hs_complete, ebda_sz; |
1da177e4 LT |
249 | u16 ebda_seg, num_entries, next_offset, offset, blk_id, sub_addr, re, rc_id, re_id, base; |
250 | int rc = 0; | |
251 | ||
252 | ||
253 | rio_complete = 0; | |
254 | hs_complete = 0; | |
255 | ||
256 | io_mem = ioremap ((0x40 << 4) + 0x0e, 2); | |
257 | if (!io_mem ) | |
258 | return -ENOMEM; | |
259 | ebda_seg = readw (io_mem); | |
260 | iounmap (io_mem); | |
261 | debug ("returned ebda segment: %x\n", ebda_seg); | |
262 | ||
b0fc889c | 263 | io_mem = ioremap(ebda_seg<<4, 1); |
ba02b242 AM |
264 | if (!io_mem) |
265 | return -ENOMEM; | |
b0fc889c C |
266 | ebda_sz = readb(io_mem); |
267 | iounmap(io_mem); | |
268 | debug("ebda size: %d(KiB)\n", ebda_sz); | |
269 | if (ebda_sz == 0) | |
270 | return -ENOMEM; | |
271 | ||
272 | io_mem = ioremap(ebda_seg<<4, (ebda_sz * 1024)); | |
1da177e4 LT |
273 | if (!io_mem ) |
274 | return -ENOMEM; | |
275 | next_offset = 0x180; | |
276 | ||
277 | for (;;) { | |
278 | offset = next_offset; | |
279 | next_offset = readw (io_mem + offset); /* offset of next blk */ | |
280 | ||
281 | offset += 2; | |
282 | if (next_offset == 0) /* 0 indicate it's last blk */ | |
283 | break; | |
284 | blk_id = readw (io_mem + offset); /* this blk id */ | |
285 | ||
286 | offset += 2; | |
287 | /* check if it is hot swap block or rio block */ | |
288 | if (blk_id != 0x4853 && blk_id != 0x4752) | |
289 | continue; | |
290 | /* found hs table */ | |
291 | if (blk_id == 0x4853) { | |
292 | debug ("now enter hot swap block---\n"); | |
293 | debug ("hot blk id: %x\n", blk_id); | |
294 | format = readb (io_mem + offset); | |
295 | ||
296 | offset += 1; | |
297 | if (format != 4) | |
298 | goto error_nodev; | |
299 | debug ("hot blk format: %x\n", format); | |
300 | /* hot swap sub blk */ | |
301 | base = offset; | |
302 | ||
303 | sub_addr = base; | |
304 | re = readw (io_mem + sub_addr); /* next sub blk */ | |
305 | ||
306 | sub_addr += 2; | |
307 | rc_id = readw (io_mem + sub_addr); /* sub blk id */ | |
308 | ||
309 | sub_addr += 2; | |
310 | if (rc_id != 0x5243) | |
311 | goto error_nodev; | |
312 | /* rc sub blk signature */ | |
313 | num_ctlrs = readb (io_mem + sub_addr); | |
314 | ||
315 | sub_addr += 1; | |
316 | hpc_list_ptr = alloc_ebda_hpc_list (); | |
317 | if (!hpc_list_ptr) { | |
318 | rc = -ENOMEM; | |
319 | goto out; | |
320 | } | |
321 | hpc_list_ptr->format = format; | |
322 | hpc_list_ptr->num_ctlrs = num_ctlrs; | |
323 | hpc_list_ptr->phys_addr = sub_addr; /* offset of RSRC_CONTROLLER blk */ | |
324 | debug ("info about hpc descriptor---\n"); | |
325 | debug ("hot blk format: %x\n", format); | |
326 | debug ("num of controller: %x\n", num_ctlrs); | |
327 | debug ("offset of hpc data structure enteries: %x\n ", sub_addr); | |
328 | ||
329 | sub_addr = base + re; /* re sub blk */ | |
330 | /* FIXME: rc is never used/checked */ | |
331 | rc = readw (io_mem + sub_addr); /* next sub blk */ | |
332 | ||
333 | sub_addr += 2; | |
334 | re_id = readw (io_mem + sub_addr); /* sub blk id */ | |
335 | ||
336 | sub_addr += 2; | |
337 | if (re_id != 0x5245) | |
338 | goto error_nodev; | |
339 | ||
340 | /* signature of re */ | |
341 | num_entries = readw (io_mem + sub_addr); | |
342 | ||
343 | sub_addr += 2; /* offset of RSRC_ENTRIES blk */ | |
344 | rsrc_list_ptr = alloc_ebda_rsrc_list (); | |
345 | if (!rsrc_list_ptr ) { | |
346 | rc = -ENOMEM; | |
347 | goto out; | |
348 | } | |
349 | rsrc_list_ptr->format = format; | |
350 | rsrc_list_ptr->num_entries = num_entries; | |
351 | rsrc_list_ptr->phys_addr = sub_addr; | |
352 | ||
353 | debug ("info about rsrc descriptor---\n"); | |
354 | debug ("format: %x\n", format); | |
355 | debug ("num of rsrc: %x\n", num_entries); | |
356 | debug ("offset of rsrc data structure enteries: %x\n ", sub_addr); | |
357 | ||
358 | hs_complete = 1; | |
359 | } else { | |
360 | /* found rio table, blk_id == 0x4752 */ | |
361 | debug ("now enter io table ---\n"); | |
362 | debug ("rio blk id: %x\n", blk_id); | |
363 | ||
f5afe806 | 364 | rio_table_ptr = kzalloc(sizeof(struct rio_table_hdr), GFP_KERNEL); |
1da177e4 LT |
365 | if (!rio_table_ptr) |
366 | return -ENOMEM; | |
1da177e4 LT |
367 | rio_table_ptr->ver_num = readb (io_mem + offset); |
368 | rio_table_ptr->scal_count = readb (io_mem + offset + 1); | |
369 | rio_table_ptr->riodev_count = readb (io_mem + offset + 2); | |
370 | rio_table_ptr->offset = offset +3 ; | |
371 | ||
372 | debug("info about rio table hdr ---\n"); | |
373 | debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ", | |
374 | rio_table_ptr->ver_num, rio_table_ptr->scal_count, | |
375 | rio_table_ptr->riodev_count, rio_table_ptr->offset); | |
376 | ||
377 | rio_complete = 1; | |
378 | } | |
379 | } | |
380 | ||
381 | if (!hs_complete && !rio_complete) | |
382 | goto error_nodev; | |
383 | ||
384 | if (rio_table_ptr) { | |
385 | if (rio_complete && rio_table_ptr->ver_num == 3) { | |
386 | rc = ebda_rio_table (); | |
387 | if (rc) | |
388 | goto out; | |
389 | } | |
390 | } | |
391 | rc = ebda_rsrc_controller (); | |
392 | if (rc) | |
393 | goto out; | |
394 | ||
395 | rc = ebda_rsrc_rsrc (); | |
396 | goto out; | |
397 | error_nodev: | |
398 | rc = -ENODEV; | |
399 | out: | |
400 | iounmap (io_mem); | |
401 | return rc; | |
402 | } | |
403 | ||
404 | /* | |
405 | * map info of scalability details and rio details from physical address | |
406 | */ | |
407 | static int __init ebda_rio_table (void) | |
408 | { | |
409 | u16 offset; | |
410 | u8 i; | |
411 | struct rio_detail *rio_detail_ptr; | |
412 | ||
413 | offset = rio_table_ptr->offset; | |
414 | offset += 12 * rio_table_ptr->scal_count; | |
415 | ||
416 | // we do concern about rio details | |
417 | for (i = 0; i < rio_table_ptr->riodev_count; i++) { | |
f5afe806 | 418 | rio_detail_ptr = kzalloc(sizeof(struct rio_detail), GFP_KERNEL); |
1da177e4 LT |
419 | if (!rio_detail_ptr) |
420 | return -ENOMEM; | |
1da177e4 LT |
421 | rio_detail_ptr->rio_node_id = readb (io_mem + offset); |
422 | rio_detail_ptr->bbar = readl (io_mem + offset + 1); | |
423 | rio_detail_ptr->rio_type = readb (io_mem + offset + 5); | |
424 | rio_detail_ptr->owner_id = readb (io_mem + offset + 6); | |
425 | rio_detail_ptr->port0_node_connect = readb (io_mem + offset + 7); | |
426 | rio_detail_ptr->port0_port_connect = readb (io_mem + offset + 8); | |
427 | rio_detail_ptr->port1_node_connect = readb (io_mem + offset + 9); | |
428 | rio_detail_ptr->port1_port_connect = readb (io_mem + offset + 10); | |
429 | rio_detail_ptr->first_slot_num = readb (io_mem + offset + 11); | |
430 | rio_detail_ptr->status = readb (io_mem + offset + 12); | |
431 | rio_detail_ptr->wpindex = readb (io_mem + offset + 13); | |
432 | rio_detail_ptr->chassis_num = readb (io_mem + offset + 14); | |
433 | // debug ("rio_node_id: %x\nbbar: %x\nrio_type: %x\nowner_id: %x\nport0_node: %x\nport0_port: %x\nport1_node: %x\nport1_port: %x\nfirst_slot_num: %x\nstatus: %x\n", rio_detail_ptr->rio_node_id, rio_detail_ptr->bbar, rio_detail_ptr->rio_type, rio_detail_ptr->owner_id, rio_detail_ptr->port0_node_connect, rio_detail_ptr->port0_port_connect, rio_detail_ptr->port1_node_connect, rio_detail_ptr->port1_port_connect, rio_detail_ptr->first_slot_num, rio_detail_ptr->status); | |
434 | //create linked list of chassis | |
435 | if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) | |
436 | list_add (&rio_detail_ptr->rio_detail_list, &rio_vg_head); | |
437 | //create linked list of expansion box | |
438 | else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) | |
439 | list_add (&rio_detail_ptr->rio_detail_list, &rio_lo_head); | |
440 | else | |
441 | // not in my concern | |
442 | kfree (rio_detail_ptr); | |
443 | offset += 15; | |
444 | } | |
445 | print_lo_info (); | |
446 | print_vg_info (); | |
447 | return 0; | |
448 | } | |
449 | ||
450 | /* | |
451 | * reorganizing linked list of chassis | |
452 | */ | |
453 | static struct opt_rio *search_opt_vg (u8 chassis_num) | |
454 | { | |
455 | struct opt_rio *ptr; | |
2fd39aa7 | 456 | list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { |
1da177e4 LT |
457 | if (ptr->chassis_num == chassis_num) |
458 | return ptr; | |
459 | } | |
460 | return NULL; | |
461 | } | |
462 | ||
463 | static int __init combine_wpg_for_chassis (void) | |
464 | { | |
465 | struct opt_rio *opt_rio_ptr = NULL; | |
466 | struct rio_detail *rio_detail_ptr = NULL; | |
1da177e4 | 467 | |
2fd39aa7 | 468 | list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) { |
1da177e4 LT |
469 | opt_rio_ptr = search_opt_vg (rio_detail_ptr->chassis_num); |
470 | if (!opt_rio_ptr) { | |
f5afe806 | 471 | opt_rio_ptr = kzalloc(sizeof(struct opt_rio), GFP_KERNEL); |
1da177e4 LT |
472 | if (!opt_rio_ptr) |
473 | return -ENOMEM; | |
1da177e4 LT |
474 | opt_rio_ptr->rio_type = rio_detail_ptr->rio_type; |
475 | opt_rio_ptr->chassis_num = rio_detail_ptr->chassis_num; | |
476 | opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num; | |
477 | opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num; | |
478 | list_add (&opt_rio_ptr->opt_rio_list, &opt_vg_head); | |
479 | } else { | |
480 | opt_rio_ptr->first_slot_num = min (opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num); | |
481 | opt_rio_ptr->middle_num = max (opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num); | |
482 | } | |
483 | } | |
484 | print_opt_vg (); | |
485 | return 0; | |
486 | } | |
487 | ||
488 | /* | |
a8d2dbd3 | 489 | * reorganizing linked list of expansion box |
1da177e4 LT |
490 | */ |
491 | static struct opt_rio_lo *search_opt_lo (u8 chassis_num) | |
492 | { | |
493 | struct opt_rio_lo *ptr; | |
2fd39aa7 | 494 | list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 LT |
495 | if (ptr->chassis_num == chassis_num) |
496 | return ptr; | |
497 | } | |
498 | return NULL; | |
499 | } | |
500 | ||
501 | static int combine_wpg_for_expansion (void) | |
502 | { | |
503 | struct opt_rio_lo *opt_rio_lo_ptr = NULL; | |
504 | struct rio_detail *rio_detail_ptr = NULL; | |
1da177e4 | 505 | |
2fd39aa7 | 506 | list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) { |
1da177e4 LT |
507 | opt_rio_lo_ptr = search_opt_lo (rio_detail_ptr->chassis_num); |
508 | if (!opt_rio_lo_ptr) { | |
f5afe806 | 509 | opt_rio_lo_ptr = kzalloc(sizeof(struct opt_rio_lo), GFP_KERNEL); |
1da177e4 LT |
510 | if (!opt_rio_lo_ptr) |
511 | return -ENOMEM; | |
1da177e4 LT |
512 | opt_rio_lo_ptr->rio_type = rio_detail_ptr->rio_type; |
513 | opt_rio_lo_ptr->chassis_num = rio_detail_ptr->chassis_num; | |
514 | opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num; | |
515 | opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num; | |
516 | opt_rio_lo_ptr->pack_count = 1; | |
517 | ||
518 | list_add (&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head); | |
519 | } else { | |
520 | opt_rio_lo_ptr->first_slot_num = min (opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num); | |
521 | opt_rio_lo_ptr->middle_num = max (opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num); | |
522 | opt_rio_lo_ptr->pack_count = 2; | |
523 | } | |
524 | } | |
525 | return 0; | |
526 | } | |
527 | ||
528 | ||
529 | /* Since we don't know the max slot number per each chassis, hence go | |
530 | * through the list of all chassis to find out the range | |
531 | * Arguments: slot_num, 1st slot number of the chassis we think we are on, | |
532 | * var (0 = chassis, 1 = expansion box) | |
533 | */ | |
534 | static int first_slot_num (u8 slot_num, u8 first_slot, u8 var) | |
535 | { | |
536 | struct opt_rio *opt_vg_ptr = NULL; | |
537 | struct opt_rio_lo *opt_lo_ptr = NULL; | |
1da177e4 LT |
538 | int rc = 0; |
539 | ||
540 | if (!var) { | |
2fd39aa7 | 541 | list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { |
1da177e4 LT |
542 | if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { |
543 | rc = -ENODEV; | |
544 | break; | |
545 | } | |
546 | } | |
547 | } else { | |
2fd39aa7 | 548 | list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 LT |
549 | if ((first_slot < opt_lo_ptr->first_slot_num) && (slot_num >= opt_lo_ptr->first_slot_num)) { |
550 | rc = -ENODEV; | |
551 | break; | |
552 | } | |
553 | } | |
554 | } | |
555 | return rc; | |
556 | } | |
557 | ||
558 | static struct opt_rio_lo * find_rxe_num (u8 slot_num) | |
559 | { | |
560 | struct opt_rio_lo *opt_lo_ptr; | |
1da177e4 | 561 | |
2fd39aa7 | 562 | list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 LT |
563 | //check to see if this slot_num belongs to expansion box |
564 | if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) | |
565 | return opt_lo_ptr; | |
566 | } | |
567 | return NULL; | |
568 | } | |
569 | ||
570 | static struct opt_rio * find_chassis_num (u8 slot_num) | |
571 | { | |
572 | struct opt_rio *opt_vg_ptr; | |
1da177e4 | 573 | |
2fd39aa7 | 574 | list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { |
1da177e4 LT |
575 | //check to see if this slot_num belongs to chassis |
576 | if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) | |
577 | return opt_vg_ptr; | |
578 | } | |
579 | return NULL; | |
580 | } | |
581 | ||
582 | /* This routine will find out how many slots are in the chassis, so that | |
583 | * the slot numbers for rxe100 would start from 1, and not from 7, or 6 etc | |
584 | */ | |
585 | static u8 calculate_first_slot (u8 slot_num) | |
586 | { | |
587 | u8 first_slot = 1; | |
1da177e4 LT |
588 | struct slot * slot_cur; |
589 | ||
2fd39aa7 | 590 | list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) { |
1da177e4 LT |
591 | if (slot_cur->ctrl) { |
592 | if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) | |
593 | first_slot = slot_cur->ctrl->ending_slot_num; | |
594 | } | |
595 | } | |
596 | return first_slot + 1; | |
597 | ||
598 | } | |
a32615a1 AC |
599 | |
600 | #define SLOT_NAME_SIZE 30 | |
601 | ||
1da177e4 LT |
602 | static char *create_file_name (struct slot * slot_cur) |
603 | { | |
604 | struct opt_rio *opt_vg_ptr = NULL; | |
605 | struct opt_rio_lo *opt_lo_ptr = NULL; | |
a32615a1 | 606 | static char str[SLOT_NAME_SIZE]; |
1da177e4 LT |
607 | int which = 0; /* rxe = 1, chassis = 0 */ |
608 | u8 number = 1; /* either chassis or rxe # */ | |
609 | u8 first_slot = 1; | |
610 | u8 slot_num; | |
611 | u8 flag = 0; | |
612 | ||
613 | if (!slot_cur) { | |
614 | err ("Structure passed is empty\n"); | |
615 | return NULL; | |
616 | } | |
617 | ||
618 | slot_num = slot_cur->number; | |
619 | ||
620 | memset (str, 0, sizeof(str)); | |
621 | ||
622 | if (rio_table_ptr) { | |
623 | if (rio_table_ptr->ver_num == 3) { | |
624 | opt_vg_ptr = find_chassis_num (slot_num); | |
625 | opt_lo_ptr = find_rxe_num (slot_num); | |
626 | } | |
627 | } | |
628 | if (opt_vg_ptr) { | |
629 | if (opt_lo_ptr) { | |
630 | if ((slot_num - opt_vg_ptr->first_slot_num) > (slot_num - opt_lo_ptr->first_slot_num)) { | |
631 | number = opt_lo_ptr->chassis_num; | |
632 | first_slot = opt_lo_ptr->first_slot_num; | |
633 | which = 1; /* it is RXE */ | |
634 | } else { | |
635 | first_slot = opt_vg_ptr->first_slot_num; | |
636 | number = opt_vg_ptr->chassis_num; | |
637 | which = 0; | |
638 | } | |
639 | } else { | |
640 | first_slot = opt_vg_ptr->first_slot_num; | |
641 | number = opt_vg_ptr->chassis_num; | |
642 | which = 0; | |
643 | } | |
644 | ++flag; | |
645 | } else if (opt_lo_ptr) { | |
646 | number = opt_lo_ptr->chassis_num; | |
647 | first_slot = opt_lo_ptr->first_slot_num; | |
648 | which = 1; | |
649 | ++flag; | |
650 | } else if (rio_table_ptr) { | |
651 | if (rio_table_ptr->ver_num == 3) { | |
652 | /* if both NULL and we DO have correct RIO table in BIOS */ | |
653 | return NULL; | |
654 | } | |
655 | } | |
656 | if (!flag) { | |
657 | if (slot_cur->ctrl->ctlr_type == 4) { | |
658 | first_slot = calculate_first_slot (slot_num); | |
659 | which = 1; | |
660 | } else { | |
661 | which = 0; | |
662 | } | |
663 | } | |
664 | ||
665 | sprintf(str, "%s%dslot%d", | |
666 | which == 0 ? "chassis" : "rxe", | |
667 | number, slot_num - first_slot + 1); | |
668 | return str; | |
669 | } | |
670 | ||
671 | static int fillslotinfo(struct hotplug_slot *hotplug_slot) | |
672 | { | |
673 | struct slot *slot; | |
674 | int rc = 0; | |
675 | ||
676 | if (!hotplug_slot || !hotplug_slot->private) | |
677 | return -EINVAL; | |
678 | ||
679 | slot = hotplug_slot->private; | |
680 | rc = ibmphp_hpc_readslot(slot, READ_ALLSTAT, NULL); | |
681 | if (rc) | |
682 | return rc; | |
683 | ||
684 | // power - enabled:1 not:0 | |
685 | hotplug_slot->info->power_status = SLOT_POWER(slot->status); | |
686 | ||
687 | // attention - off:0, on:1, blinking:2 | |
688 | hotplug_slot->info->attention_status = SLOT_ATTN(slot->status, slot->ext_status); | |
689 | ||
690 | // latch - open:1 closed:0 | |
691 | hotplug_slot->info->latch_status = SLOT_LATCH(slot->status); | |
692 | ||
693 | // pci board - present:1 not:0 | |
694 | if (SLOT_PRESENT (slot->status)) | |
695 | hotplug_slot->info->adapter_status = 1; | |
696 | else | |
697 | hotplug_slot->info->adapter_status = 0; | |
698 | /* | |
699 | if (slot->bus_on->supported_bus_mode | |
700 | && (slot->bus_on->supported_speed == BUS_SPEED_66)) | |
701 | hotplug_slot->info->max_bus_speed_status = BUS_SPEED_66PCIX; | |
702 | else | |
703 | hotplug_slot->info->max_bus_speed_status = slot->bus_on->supported_speed; | |
704 | */ | |
705 | ||
706 | return rc; | |
707 | } | |
708 | ||
709 | static void release_slot(struct hotplug_slot *hotplug_slot) | |
710 | { | |
711 | struct slot *slot; | |
712 | ||
713 | if (!hotplug_slot || !hotplug_slot->private) | |
714 | return; | |
715 | ||
716 | slot = hotplug_slot->private; | |
717 | kfree(slot->hotplug_slot->info); | |
1da177e4 LT |
718 | kfree(slot->hotplug_slot); |
719 | slot->ctrl = NULL; | |
720 | slot->bus_on = NULL; | |
721 | ||
722 | /* we don't want to actually remove the resources, since free_resources will do just that */ | |
723 | ibmphp_unconfigure_card(&slot, -1); | |
724 | ||
725 | kfree (slot); | |
726 | } | |
727 | ||
728 | static struct pci_driver ibmphp_driver; | |
729 | ||
730 | /* | |
731 | * map info (ctlr-id, slot count, slot#.. bus count, bus#, ctlr type...) of | |
732 | * each hpc from physical address to a list of hot plug controllers based on | |
733 | * hpc descriptors. | |
734 | */ | |
735 | static int __init ebda_rsrc_controller (void) | |
736 | { | |
737 | u16 addr, addr_slot, addr_bus; | |
738 | u8 ctlr_id, temp, bus_index; | |
739 | u16 ctlr, slot, bus; | |
740 | u16 slot_num, bus_num, index; | |
741 | struct hotplug_slot *hp_slot_ptr; | |
742 | struct controller *hpc_ptr; | |
743 | struct ebda_hpc_bus *bus_ptr; | |
744 | struct ebda_hpc_slot *slot_ptr; | |
745 | struct bus_info *bus_info_ptr1, *bus_info_ptr2; | |
746 | int rc; | |
747 | struct slot *tmp_slot; | |
a32615a1 | 748 | char name[SLOT_NAME_SIZE]; |
1da177e4 LT |
749 | |
750 | addr = hpc_list_ptr->phys_addr; | |
751 | for (ctlr = 0; ctlr < hpc_list_ptr->num_ctlrs; ctlr++) { | |
752 | bus_index = 1; | |
753 | ctlr_id = readb (io_mem + addr); | |
754 | addr += 1; | |
755 | slot_num = readb (io_mem + addr); | |
756 | ||
757 | addr += 1; | |
758 | addr_slot = addr; /* offset of slot structure */ | |
759 | addr += (slot_num * 4); | |
760 | ||
761 | bus_num = readb (io_mem + addr); | |
762 | ||
763 | addr += 1; | |
764 | addr_bus = addr; /* offset of bus */ | |
765 | addr += (bus_num * 9); /* offset of ctlr_type */ | |
766 | temp = readb (io_mem + addr); | |
767 | ||
768 | addr += 1; | |
769 | /* init hpc structure */ | |
770 | hpc_ptr = alloc_ebda_hpc (slot_num, bus_num); | |
771 | if (!hpc_ptr ) { | |
772 | rc = -ENOMEM; | |
773 | goto error_no_hpc; | |
774 | } | |
775 | hpc_ptr->ctlr_id = ctlr_id; | |
776 | hpc_ptr->ctlr_relative_id = ctlr; | |
777 | hpc_ptr->slot_count = slot_num; | |
778 | hpc_ptr->bus_count = bus_num; | |
779 | debug ("now enter ctlr data struture ---\n"); | |
780 | debug ("ctlr id: %x\n", ctlr_id); | |
781 | debug ("ctlr_relative_id: %x\n", hpc_ptr->ctlr_relative_id); | |
782 | debug ("count of slots controlled by this ctlr: %x\n", slot_num); | |
783 | debug ("count of buses controlled by this ctlr: %x\n", bus_num); | |
784 | ||
785 | /* init slot structure, fetch slot, bus, cap... */ | |
786 | slot_ptr = hpc_ptr->slots; | |
787 | for (slot = 0; slot < slot_num; slot++) { | |
788 | slot_ptr->slot_num = readb (io_mem + addr_slot); | |
789 | slot_ptr->slot_bus_num = readb (io_mem + addr_slot + slot_num); | |
790 | slot_ptr->ctl_index = readb (io_mem + addr_slot + 2*slot_num); | |
791 | slot_ptr->slot_cap = readb (io_mem + addr_slot + 3*slot_num); | |
792 | ||
793 | // create bus_info lined list --- if only one slot per bus: slot_min = slot_max | |
794 | ||
795 | bus_info_ptr2 = ibmphp_find_same_bus_num (slot_ptr->slot_bus_num); | |
796 | if (!bus_info_ptr2) { | |
f5afe806 | 797 | bus_info_ptr1 = kzalloc(sizeof(struct bus_info), GFP_KERNEL); |
1da177e4 LT |
798 | if (!bus_info_ptr1) { |
799 | rc = -ENOMEM; | |
800 | goto error_no_hp_slot; | |
801 | } | |
1da177e4 LT |
802 | bus_info_ptr1->slot_min = slot_ptr->slot_num; |
803 | bus_info_ptr1->slot_max = slot_ptr->slot_num; | |
804 | bus_info_ptr1->slot_count += 1; | |
805 | bus_info_ptr1->busno = slot_ptr->slot_bus_num; | |
806 | bus_info_ptr1->index = bus_index++; | |
807 | bus_info_ptr1->current_speed = 0xff; | |
808 | bus_info_ptr1->current_bus_mode = 0xff; | |
809 | ||
810 | bus_info_ptr1->controller_id = hpc_ptr->ctlr_id; | |
811 | ||
812 | list_add_tail (&bus_info_ptr1->bus_info_list, &bus_info_head); | |
813 | ||
814 | } else { | |
815 | bus_info_ptr2->slot_min = min (bus_info_ptr2->slot_min, slot_ptr->slot_num); | |
816 | bus_info_ptr2->slot_max = max (bus_info_ptr2->slot_max, slot_ptr->slot_num); | |
817 | bus_info_ptr2->slot_count += 1; | |
818 | ||
819 | } | |
820 | ||
821 | // end of creating the bus_info linked list | |
822 | ||
823 | slot_ptr++; | |
824 | addr_slot += 1; | |
825 | } | |
826 | ||
827 | /* init bus structure */ | |
828 | bus_ptr = hpc_ptr->buses; | |
829 | for (bus = 0; bus < bus_num; bus++) { | |
830 | bus_ptr->bus_num = readb (io_mem + addr_bus + bus); | |
831 | bus_ptr->slots_at_33_conv = readb (io_mem + addr_bus + bus_num + 8 * bus); | |
832 | bus_ptr->slots_at_66_conv = readb (io_mem + addr_bus + bus_num + 8 * bus + 1); | |
833 | ||
834 | bus_ptr->slots_at_66_pcix = readb (io_mem + addr_bus + bus_num + 8 * bus + 2); | |
835 | ||
836 | bus_ptr->slots_at_100_pcix = readb (io_mem + addr_bus + bus_num + 8 * bus + 3); | |
837 | ||
838 | bus_ptr->slots_at_133_pcix = readb (io_mem + addr_bus + bus_num + 8 * bus + 4); | |
839 | ||
840 | bus_info_ptr2 = ibmphp_find_same_bus_num (bus_ptr->bus_num); | |
841 | if (bus_info_ptr2) { | |
842 | bus_info_ptr2->slots_at_33_conv = bus_ptr->slots_at_33_conv; | |
843 | bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv; | |
844 | bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix; | |
845 | bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix; | |
846 | bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; | |
847 | } | |
848 | bus_ptr++; | |
849 | } | |
850 | ||
851 | hpc_ptr->ctlr_type = temp; | |
852 | ||
853 | switch (hpc_ptr->ctlr_type) { | |
854 | case 1: | |
855 | hpc_ptr->u.pci_ctlr.bus = readb (io_mem + addr); | |
856 | hpc_ptr->u.pci_ctlr.dev_fun = readb (io_mem + addr + 1); | |
857 | hpc_ptr->irq = readb (io_mem + addr + 2); | |
858 | addr += 3; | |
859 | debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", | |
860 | hpc_ptr->u.pci_ctlr.bus, | |
861 | hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq); | |
862 | break; | |
863 | ||
864 | case 0: | |
865 | hpc_ptr->u.isa_ctlr.io_start = readw (io_mem + addr); | |
866 | hpc_ptr->u.isa_ctlr.io_end = readw (io_mem + addr + 2); | |
867 | if (!request_region (hpc_ptr->u.isa_ctlr.io_start, | |
868 | (hpc_ptr->u.isa_ctlr.io_end - hpc_ptr->u.isa_ctlr.io_start + 1), | |
869 | "ibmphp")) { | |
870 | rc = -ENODEV; | |
871 | goto error_no_hp_slot; | |
872 | } | |
873 | hpc_ptr->irq = readb (io_mem + addr + 4); | |
874 | addr += 5; | |
875 | break; | |
876 | ||
877 | case 2: | |
878 | case 4: | |
879 | hpc_ptr->u.wpeg_ctlr.wpegbbar = readl (io_mem + addr); | |
880 | hpc_ptr->u.wpeg_ctlr.i2c_addr = readb (io_mem + addr + 4); | |
881 | hpc_ptr->irq = readb (io_mem + addr + 5); | |
882 | addr += 6; | |
883 | break; | |
884 | default: | |
885 | rc = -ENODEV; | |
886 | goto error_no_hp_slot; | |
887 | } | |
888 | ||
889 | //reorganize chassis' linked list | |
890 | combine_wpg_for_chassis (); | |
891 | combine_wpg_for_expansion (); | |
892 | hpc_ptr->revision = 0xff; | |
893 | hpc_ptr->options = 0xff; | |
894 | hpc_ptr->starting_slot_num = hpc_ptr->slots[0].slot_num; | |
895 | hpc_ptr->ending_slot_num = hpc_ptr->slots[slot_num-1].slot_num; | |
896 | ||
897 | // register slots with hpc core as well as create linked list of ibm slot | |
898 | for (index = 0; index < hpc_ptr->slot_count; index++) { | |
899 | ||
f5afe806 | 900 | hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), GFP_KERNEL); |
1da177e4 LT |
901 | if (!hp_slot_ptr) { |
902 | rc = -ENOMEM; | |
903 | goto error_no_hp_slot; | |
904 | } | |
1da177e4 | 905 | |
f5afe806 | 906 | hp_slot_ptr->info = kzalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); |
1da177e4 LT |
907 | if (!hp_slot_ptr->info) { |
908 | rc = -ENOMEM; | |
909 | goto error_no_hp_info; | |
910 | } | |
1da177e4 | 911 | |
f5afe806 | 912 | tmp_slot = kzalloc(sizeof(*tmp_slot), GFP_KERNEL); |
1da177e4 LT |
913 | if (!tmp_slot) { |
914 | rc = -ENOMEM; | |
915 | goto error_no_slot; | |
916 | } | |
1da177e4 | 917 | |
dc6712d1 | 918 | tmp_slot->flag = 1; |
1da177e4 LT |
919 | |
920 | tmp_slot->capabilities = hpc_ptr->slots[index].slot_cap; | |
921 | if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_133_MAX) == EBDA_SLOT_133_MAX) | |
922 | tmp_slot->supported_speed = 3; | |
923 | else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_100_MAX) == EBDA_SLOT_100_MAX) | |
924 | tmp_slot->supported_speed = 2; | |
925 | else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX) | |
926 | tmp_slot->supported_speed = 1; | |
927 | ||
928 | if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP) | |
929 | tmp_slot->supported_bus_mode = 1; | |
930 | else | |
931 | tmp_slot->supported_bus_mode = 0; | |
932 | ||
933 | ||
934 | tmp_slot->bus = hpc_ptr->slots[index].slot_bus_num; | |
935 | ||
936 | bus_info_ptr1 = ibmphp_find_same_bus_num (hpc_ptr->slots[index].slot_bus_num); | |
937 | if (!bus_info_ptr1) { | |
b91aac29 | 938 | kfree(tmp_slot); |
1da177e4 LT |
939 | rc = -ENODEV; |
940 | goto error; | |
941 | } | |
942 | tmp_slot->bus_on = bus_info_ptr1; | |
943 | bus_info_ptr1 = NULL; | |
944 | tmp_slot->ctrl = hpc_ptr; | |
945 | ||
946 | tmp_slot->ctlr_index = hpc_ptr->slots[index].ctl_index; | |
947 | tmp_slot->number = hpc_ptr->slots[index].slot_num; | |
948 | tmp_slot->hotplug_slot = hp_slot_ptr; | |
949 | ||
950 | hp_slot_ptr->private = tmp_slot; | |
951 | hp_slot_ptr->release = release_slot; | |
952 | ||
953 | rc = fillslotinfo(hp_slot_ptr); | |
954 | if (rc) | |
955 | goto error; | |
956 | ||
957 | rc = ibmphp_init_devno ((struct slot **) &hp_slot_ptr->private); | |
958 | if (rc) | |
959 | goto error; | |
960 | hp_slot_ptr->ops = &ibmphp_hotplug_slot_ops; | |
961 | ||
962 | // end of registering ibm slot with hotplug core | |
963 | ||
964 | list_add (& ((struct slot *)(hp_slot_ptr->private))->ibm_slot_list, &ibmphp_slot_head); | |
965 | } | |
966 | ||
967 | print_bus_info (); | |
968 | list_add (&hpc_ptr->ebda_hpc_list, &ebda_hpc_head ); | |
969 | ||
970 | } /* each hpc */ | |
971 | ||
2fd39aa7 | 972 | list_for_each_entry(tmp_slot, &ibmphp_slot_head, ibm_slot_list) { |
a32615a1 | 973 | snprintf(name, SLOT_NAME_SIZE, "%s", create_file_name(tmp_slot)); |
f46753c5 | 974 | pci_hp_register(tmp_slot->hotplug_slot, |
a32615a1 | 975 | pci_find_bus(0, tmp_slot->bus), tmp_slot->device, name); |
1da177e4 LT |
976 | } |
977 | ||
978 | print_ebda_hpc (); | |
979 | print_ibm_slot (); | |
980 | return 0; | |
981 | ||
982 | error: | |
983 | kfree (hp_slot_ptr->private); | |
984 | error_no_slot: | |
1da177e4 LT |
985 | kfree (hp_slot_ptr->info); |
986 | error_no_hp_info: | |
987 | kfree (hp_slot_ptr); | |
988 | error_no_hp_slot: | |
989 | free_ebda_hpc (hpc_ptr); | |
990 | error_no_hpc: | |
991 | iounmap (io_mem); | |
992 | return rc; | |
993 | } | |
994 | ||
995 | /* | |
996 | * map info (bus, devfun, start addr, end addr..) of i/o, memory, | |
997 | * pfm from the physical addr to a list of resource. | |
998 | */ | |
999 | static int __init ebda_rsrc_rsrc (void) | |
1000 | { | |
1001 | u16 addr; | |
1002 | short rsrc; | |
1003 | u8 type, rsrc_type; | |
1004 | struct ebda_pci_rsrc *rsrc_ptr; | |
1005 | ||
1006 | addr = rsrc_list_ptr->phys_addr; | |
1007 | debug ("now entering rsrc land\n"); | |
1008 | debug ("offset of rsrc: %x\n", rsrc_list_ptr->phys_addr); | |
1009 | ||
1010 | for (rsrc = 0; rsrc < rsrc_list_ptr->num_entries; rsrc++) { | |
1011 | type = readb (io_mem + addr); | |
1012 | ||
1013 | addr += 1; | |
1014 | rsrc_type = type & EBDA_RSRC_TYPE_MASK; | |
1015 | ||
1016 | if (rsrc_type == EBDA_IO_RSRC_TYPE) { | |
1017 | rsrc_ptr = alloc_ebda_pci_rsrc (); | |
1018 | if (!rsrc_ptr) { | |
1019 | iounmap (io_mem); | |
1020 | return -ENOMEM; | |
1021 | } | |
1022 | rsrc_ptr->rsrc_type = type; | |
1023 | ||
1024 | rsrc_ptr->bus_num = readb (io_mem + addr); | |
1025 | rsrc_ptr->dev_fun = readb (io_mem + addr + 1); | |
1026 | rsrc_ptr->start_addr = readw (io_mem + addr + 2); | |
1027 | rsrc_ptr->end_addr = readw (io_mem + addr + 4); | |
1028 | addr += 6; | |
1029 | ||
1030 | debug ("rsrc from io type ----\n"); | |
1031 | debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", | |
1032 | rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); | |
1033 | ||
1034 | list_add (&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); | |
1035 | } | |
1036 | ||
1037 | if (rsrc_type == EBDA_MEM_RSRC_TYPE || rsrc_type == EBDA_PFM_RSRC_TYPE) { | |
1038 | rsrc_ptr = alloc_ebda_pci_rsrc (); | |
1039 | if (!rsrc_ptr ) { | |
1040 | iounmap (io_mem); | |
1041 | return -ENOMEM; | |
1042 | } | |
1043 | rsrc_ptr->rsrc_type = type; | |
1044 | ||
1045 | rsrc_ptr->bus_num = readb (io_mem + addr); | |
1046 | rsrc_ptr->dev_fun = readb (io_mem + addr + 1); | |
1047 | rsrc_ptr->start_addr = readl (io_mem + addr + 2); | |
1048 | rsrc_ptr->end_addr = readl (io_mem + addr + 6); | |
1049 | addr += 10; | |
1050 | ||
1051 | debug ("rsrc from mem or pfm ---\n"); | |
1052 | debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", | |
1053 | rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); | |
1054 | ||
1055 | list_add (&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); | |
1056 | } | |
1057 | } | |
1058 | kfree (rsrc_list_ptr); | |
1059 | rsrc_list_ptr = NULL; | |
1060 | print_ebda_pci_rsrc (); | |
1061 | return 0; | |
1062 | } | |
1063 | ||
1064 | u16 ibmphp_get_total_controllers (void) | |
1065 | { | |
1066 | return hpc_list_ptr->num_ctlrs; | |
1067 | } | |
1068 | ||
1069 | struct slot *ibmphp_get_slot_from_physical_num (u8 physical_num) | |
1070 | { | |
1071 | struct slot *slot; | |
1da177e4 | 1072 | |
2fd39aa7 | 1073 | list_for_each_entry(slot, &ibmphp_slot_head, ibm_slot_list) { |
1da177e4 LT |
1074 | if (slot->number == physical_num) |
1075 | return slot; | |
1076 | } | |
1077 | return NULL; | |
1078 | } | |
1079 | ||
1080 | /* To find: | |
1081 | * - the smallest slot number | |
1082 | * - the largest slot number | |
1083 | * - the total number of the slots based on each bus | |
1084 | * (if only one slot per bus slot_min = slot_max ) | |
1085 | */ | |
1086 | struct bus_info *ibmphp_find_same_bus_num (u32 num) | |
1087 | { | |
1088 | struct bus_info *ptr; | |
1da177e4 | 1089 | |
2fd39aa7 | 1090 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
1da177e4 LT |
1091 | if (ptr->busno == num) |
1092 | return ptr; | |
1093 | } | |
1094 | return NULL; | |
1095 | } | |
1096 | ||
1097 | /* Finding relative bus number, in order to map corresponding | |
1098 | * bus register | |
1099 | */ | |
1100 | int ibmphp_get_bus_index (u8 num) | |
1101 | { | |
1102 | struct bus_info *ptr; | |
1da177e4 | 1103 | |
2fd39aa7 | 1104 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
1da177e4 LT |
1105 | if (ptr->busno == num) |
1106 | return ptr->index; | |
1107 | } | |
1108 | return -ENODEV; | |
1109 | } | |
1110 | ||
1111 | void ibmphp_free_bus_info_queue (void) | |
1112 | { | |
1113 | struct bus_info *bus_info; | |
1114 | struct list_head *list; | |
1115 | struct list_head *next; | |
1116 | ||
1117 | list_for_each_safe (list, next, &bus_info_head ) { | |
1118 | bus_info = list_entry (list, struct bus_info, bus_info_list); | |
1119 | kfree (bus_info); | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | void ibmphp_free_ebda_hpc_queue (void) | |
1124 | { | |
1125 | struct controller *controller = NULL; | |
1126 | struct list_head *list; | |
1127 | struct list_head *next; | |
1128 | int pci_flag = 0; | |
1129 | ||
1130 | list_for_each_safe (list, next, &ebda_hpc_head) { | |
1131 | controller = list_entry (list, struct controller, ebda_hpc_list); | |
1132 | if (controller->ctlr_type == 0) | |
1133 | release_region (controller->u.isa_ctlr.io_start, (controller->u.isa_ctlr.io_end - controller->u.isa_ctlr.io_start + 1)); | |
1134 | else if ((controller->ctlr_type == 1) && (!pci_flag)) { | |
1135 | ++pci_flag; | |
1136 | pci_unregister_driver (&ibmphp_driver); | |
1137 | } | |
1138 | free_ebda_hpc (controller); | |
1139 | } | |
1140 | } | |
1141 | ||
1142 | void ibmphp_free_ebda_pci_rsrc_queue (void) | |
1143 | { | |
1144 | struct ebda_pci_rsrc *resource; | |
1145 | struct list_head *list; | |
1146 | struct list_head *next; | |
1147 | ||
1148 | list_for_each_safe (list, next, &ibmphp_ebda_pci_rsrc_head) { | |
1149 | resource = list_entry (list, struct ebda_pci_rsrc, ebda_pci_rsrc_list); | |
1150 | kfree (resource); | |
1151 | resource = NULL; | |
1152 | } | |
1153 | } | |
1154 | ||
1155 | static struct pci_device_id id_table[] = { | |
1156 | { | |
1157 | .vendor = PCI_VENDOR_ID_IBM, | |
1158 | .device = HPC_DEVICE_ID, | |
1159 | .subvendor = PCI_VENDOR_ID_IBM, | |
1160 | .subdevice = HPC_SUBSYSTEM_ID, | |
1161 | .class = ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00), | |
1162 | }, {} | |
1163 | }; | |
1164 | ||
1165 | MODULE_DEVICE_TABLE(pci, id_table); | |
1166 | ||
1167 | static int ibmphp_probe (struct pci_dev *, const struct pci_device_id *); | |
1168 | static struct pci_driver ibmphp_driver = { | |
1169 | .name = "ibmphp", | |
1170 | .id_table = id_table, | |
1171 | .probe = ibmphp_probe, | |
1172 | }; | |
1173 | ||
1174 | int ibmphp_register_pci (void) | |
1175 | { | |
1176 | struct controller *ctrl; | |
1da177e4 LT |
1177 | int rc = 0; |
1178 | ||
2fd39aa7 | 1179 | list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { |
1da177e4 LT |
1180 | if (ctrl->ctlr_type == 1) { |
1181 | rc = pci_register_driver(&ibmphp_driver); | |
1182 | break; | |
1183 | } | |
1184 | } | |
1185 | return rc; | |
1186 | } | |
1187 | static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids) | |
1188 | { | |
1189 | struct controller *ctrl; | |
1da177e4 LT |
1190 | |
1191 | debug ("inside ibmphp_probe\n"); | |
1192 | ||
2fd39aa7 | 1193 | list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { |
1da177e4 LT |
1194 | if (ctrl->ctlr_type == 1) { |
1195 | if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) { | |
1196 | ctrl->ctrl_dev = dev; | |
1197 | debug ("found device!!!\n"); | |
1198 | debug ("dev->device = %x, dev->subsystem_device = %x\n", dev->device, dev->subsystem_device); | |
1199 | return 0; | |
1200 | } | |
1201 | } | |
1202 | } | |
1203 | return -ENODEV; | |
1204 | } | |
1205 |