Commit | Line | Data |
---|---|---|
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 */ | |
ff3ce480 BS |
52 | LIST_HEAD(ibmphp_ebda_pci_rsrc_head); |
53 | LIST_HEAD(ibmphp_slot_head); | |
1da177e4 LT |
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; | |
ff3ce480 BS |
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); | |
1da177e4 LT |
65 | static void __iomem *io_mem; |
66 | ||
67 | /* Local functions */ | |
ff3ce480 BS |
68 | static int ebda_rsrc_controller(void); |
69 | static int ebda_rsrc_rsrc(void); | |
70 | static int ebda_rio_table(void); | |
1da177e4 | 71 | |
ff3ce480 | 72 | static struct ebda_hpc_list * __init alloc_ebda_hpc_list(void) |
1da177e4 | 73 | { |
f5afe806 | 74 | return kzalloc(sizeof(struct ebda_hpc_list), GFP_KERNEL); |
1da177e4 LT |
75 | } |
76 | ||
ff3ce480 | 77 | static struct controller *alloc_ebda_hpc(u32 slot_count, u32 bus_count) |
1da177e4 LT |
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 | ||
ff3ce480 | 106 | static void free_ebda_hpc(struct controller *controller) |
1da177e4 | 107 | { |
ff3ce480 BS |
108 | kfree(controller->slots); |
109 | kfree(controller->buses); | |
110 | kfree(controller); | |
1da177e4 LT |
111 | } |
112 | ||
ff3ce480 | 113 | static struct ebda_rsrc_list * __init alloc_ebda_rsrc_list(void) |
1da177e4 | 114 | { |
f5afe806 | 115 | return kzalloc(sizeof(struct ebda_rsrc_list), GFP_KERNEL); |
1da177e4 LT |
116 | } |
117 | ||
ff3ce480 | 118 | static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc(void) |
1da177e4 | 119 | { |
f5afe806 | 120 | return kzalloc(sizeof(struct ebda_pci_rsrc), GFP_KERNEL); |
1da177e4 LT |
121 | } |
122 | ||
ff3ce480 | 123 | static void __init print_bus_info(void) |
1da177e4 LT |
124 | { |
125 | struct bus_info *ptr; | |
f7625980 | 126 | |
2fd39aa7 | 127 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
ff3ce480 BS |
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); | |
134 | ||
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 | ||
ff3ce480 | 144 | static void print_lo_info(void) |
1da177e4 LT |
145 | { |
146 | struct rio_detail *ptr; | |
ff3ce480 | 147 | debug("print_lo_info ----\n"); |
2fd39aa7 | 148 | list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) { |
ff3ce480 BS |
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 | ||
ff3ce480 | 159 | static void print_vg_info(void) |
1da177e4 LT |
160 | { |
161 | struct rio_detail *ptr; | |
ff3ce480 | 162 | debug("%s ---\n", __func__); |
2fd39aa7 | 163 | list_for_each_entry(ptr, &rio_vg_head, rio_detail_list) { |
ff3ce480 BS |
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 | ||
ff3ce480 | 174 | static void __init print_ebda_pci_rsrc(void) |
1da177e4 LT |
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) { |
ff3ce480 BS |
179 | debug("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", |
180 | __func__, ptr->rsrc_type, ptr->bus_num, ptr->dev_fun, ptr->start_addr, ptr->end_addr); | |
1da177e4 LT |
181 | } |
182 | } | |
183 | ||
ff3ce480 | 184 | static void __init print_ibm_slot(void) |
1da177e4 LT |
185 | { |
186 | struct slot *ptr; | |
1da177e4 | 187 | |
2fd39aa7 | 188 | list_for_each_entry(ptr, &ibmphp_slot_head, ibm_slot_list) { |
ff3ce480 | 189 | debug("%s - slot_number: %x\n", __func__, ptr->number); |
1da177e4 LT |
190 | } |
191 | } | |
192 | ||
ff3ce480 | 193 | static void __init print_opt_vg(void) |
1da177e4 LT |
194 | { |
195 | struct opt_rio *ptr; | |
ff3ce480 | 196 | debug("%s ---\n", __func__); |
2fd39aa7 | 197 | list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { |
ff3ce480 BS |
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 | ||
ff3ce480 | 205 | static void __init print_ebda_hpc(void) |
1da177e4 LT |
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++) { |
ff3ce480 BS |
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 | ||
656f978f | 218 | for (index = 0; index < hpc_ptr->bus_count; index++) |
ff3ce480 | 219 | debug("%s - bus# of each bus controlled by this ctlr: %x\n", __func__, hpc_ptr->buses[index].bus_num); |
1da177e4 | 220 | |
ff3ce480 | 221 | debug("%s - type of hpc: %x\n", __func__, hpc_ptr->ctlr_type); |
1da177e4 LT |
222 | switch (hpc_ptr->ctlr_type) { |
223 | case 1: | |
ff3ce480 BS |
224 | debug("%s - bus: %x\n", __func__, hpc_ptr->u.pci_ctlr.bus); |
225 | debug("%s - dev_fun: %x\n", __func__, hpc_ptr->u.pci_ctlr.dev_fun); | |
226 | debug("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
227 | break; |
228 | ||
229 | case 0: | |
ff3ce480 BS |
230 | debug("%s - io_start: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_start); |
231 | debug("%s - io_end: %x\n", __func__, hpc_ptr->u.isa_ctlr.io_end); | |
232 | debug("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
233 | break; |
234 | ||
235 | case 2: | |
236 | case 4: | |
ff3ce480 BS |
237 | debug("%s - wpegbbar: %lx\n", __func__, hpc_ptr->u.wpeg_ctlr.wpegbbar); |
238 | debug("%s - i2c_addr: %x\n", __func__, hpc_ptr->u.wpeg_ctlr.i2c_addr); | |
239 | debug("%s - irq: %x\n", __func__, hpc_ptr->irq); | |
1da177e4 LT |
240 | break; |
241 | } | |
242 | } | |
243 | } | |
244 | ||
ff3ce480 | 245 | int __init ibmphp_access_ebda(void) |
1da177e4 | 246 | { |
b0fc889c | 247 | u8 format, num_ctlrs, rio_complete, hs_complete, ebda_sz; |
1da177e4 LT |
248 | u16 ebda_seg, num_entries, next_offset, offset, blk_id, sub_addr, re, rc_id, re_id, base; |
249 | int rc = 0; | |
250 | ||
251 | ||
252 | rio_complete = 0; | |
253 | hs_complete = 0; | |
254 | ||
ff3ce480 BS |
255 | io_mem = ioremap((0x40 << 4) + 0x0e, 2); |
256 | if (!io_mem) | |
1da177e4 | 257 | return -ENOMEM; |
ff3ce480 BS |
258 | ebda_seg = readw(io_mem); |
259 | iounmap(io_mem); | |
260 | debug("returned ebda segment: %x\n", ebda_seg); | |
f7625980 | 261 | |
b0fc889c | 262 | io_mem = ioremap(ebda_seg<<4, 1); |
ba02b242 AM |
263 | if (!io_mem) |
264 | return -ENOMEM; | |
b0fc889c C |
265 | ebda_sz = readb(io_mem); |
266 | iounmap(io_mem); | |
267 | debug("ebda size: %d(KiB)\n", ebda_sz); | |
268 | if (ebda_sz == 0) | |
269 | return -ENOMEM; | |
270 | ||
271 | io_mem = ioremap(ebda_seg<<4, (ebda_sz * 1024)); | |
ff3ce480 | 272 | if (!io_mem) |
1da177e4 LT |
273 | return -ENOMEM; |
274 | next_offset = 0x180; | |
275 | ||
276 | for (;;) { | |
277 | offset = next_offset; | |
ac3abf2c SR |
278 | |
279 | /* Make sure what we read is still in the mapped section */ | |
280 | if (WARN(offset > (ebda_sz * 1024 - 4), | |
281 | "ibmphp_ebda: next read is beyond ebda_sz\n")) | |
282 | break; | |
283 | ||
ff3ce480 | 284 | next_offset = readw(io_mem + offset); /* offset of next blk */ |
1da177e4 LT |
285 | |
286 | offset += 2; | |
287 | if (next_offset == 0) /* 0 indicate it's last blk */ | |
288 | break; | |
ff3ce480 | 289 | blk_id = readw(io_mem + offset); /* this blk id */ |
1da177e4 LT |
290 | |
291 | offset += 2; | |
292 | /* check if it is hot swap block or rio block */ | |
293 | if (blk_id != 0x4853 && blk_id != 0x4752) | |
294 | continue; | |
295 | /* found hs table */ | |
296 | if (blk_id == 0x4853) { | |
ff3ce480 BS |
297 | debug("now enter hot swap block---\n"); |
298 | debug("hot blk id: %x\n", blk_id); | |
299 | format = readb(io_mem + offset); | |
1da177e4 LT |
300 | |
301 | offset += 1; | |
302 | if (format != 4) | |
303 | goto error_nodev; | |
ff3ce480 | 304 | debug("hot blk format: %x\n", format); |
1da177e4 LT |
305 | /* hot swap sub blk */ |
306 | base = offset; | |
307 | ||
308 | sub_addr = base; | |
ff3ce480 | 309 | re = readw(io_mem + sub_addr); /* next sub blk */ |
1da177e4 LT |
310 | |
311 | sub_addr += 2; | |
ff3ce480 | 312 | rc_id = readw(io_mem + sub_addr); /* sub blk id */ |
1da177e4 LT |
313 | |
314 | sub_addr += 2; | |
315 | if (rc_id != 0x5243) | |
316 | goto error_nodev; | |
317 | /* rc sub blk signature */ | |
ff3ce480 | 318 | num_ctlrs = readb(io_mem + sub_addr); |
1da177e4 LT |
319 | |
320 | sub_addr += 1; | |
ff3ce480 | 321 | hpc_list_ptr = alloc_ebda_hpc_list(); |
1da177e4 LT |
322 | if (!hpc_list_ptr) { |
323 | rc = -ENOMEM; | |
324 | goto out; | |
325 | } | |
326 | hpc_list_ptr->format = format; | |
327 | hpc_list_ptr->num_ctlrs = num_ctlrs; | |
328 | hpc_list_ptr->phys_addr = sub_addr; /* offset of RSRC_CONTROLLER blk */ | |
ff3ce480 BS |
329 | debug("info about hpc descriptor---\n"); |
330 | debug("hot blk format: %x\n", format); | |
331 | debug("num of controller: %x\n", num_ctlrs); | |
332 | debug("offset of hpc data structure entries: %x\n ", sub_addr); | |
1da177e4 LT |
333 | |
334 | sub_addr = base + re; /* re sub blk */ | |
335 | /* FIXME: rc is never used/checked */ | |
ff3ce480 | 336 | rc = readw(io_mem + sub_addr); /* next sub blk */ |
1da177e4 LT |
337 | |
338 | sub_addr += 2; | |
ff3ce480 | 339 | re_id = readw(io_mem + sub_addr); /* sub blk id */ |
1da177e4 LT |
340 | |
341 | sub_addr += 2; | |
342 | if (re_id != 0x5245) | |
343 | goto error_nodev; | |
344 | ||
345 | /* signature of re */ | |
ff3ce480 | 346 | num_entries = readw(io_mem + sub_addr); |
1da177e4 LT |
347 | |
348 | sub_addr += 2; /* offset of RSRC_ENTRIES blk */ | |
ff3ce480 BS |
349 | rsrc_list_ptr = alloc_ebda_rsrc_list(); |
350 | if (!rsrc_list_ptr) { | |
1da177e4 LT |
351 | rc = -ENOMEM; |
352 | goto out; | |
353 | } | |
354 | rsrc_list_ptr->format = format; | |
355 | rsrc_list_ptr->num_entries = num_entries; | |
356 | rsrc_list_ptr->phys_addr = sub_addr; | |
357 | ||
ff3ce480 BS |
358 | debug("info about rsrc descriptor---\n"); |
359 | debug("format: %x\n", format); | |
360 | debug("num of rsrc: %x\n", num_entries); | |
361 | debug("offset of rsrc data structure entries: %x\n ", sub_addr); | |
1da177e4 LT |
362 | |
363 | hs_complete = 1; | |
364 | } else { | |
365 | /* found rio table, blk_id == 0x4752 */ | |
ff3ce480 BS |
366 | debug("now enter io table ---\n"); |
367 | debug("rio blk id: %x\n", blk_id); | |
1da177e4 | 368 | |
f5afe806 | 369 | rio_table_ptr = kzalloc(sizeof(struct rio_table_hdr), GFP_KERNEL); |
8f0cdddc JL |
370 | if (!rio_table_ptr) { |
371 | rc = -ENOMEM; | |
372 | goto out; | |
373 | } | |
ff3ce480 BS |
374 | rio_table_ptr->ver_num = readb(io_mem + offset); |
375 | rio_table_ptr->scal_count = readb(io_mem + offset + 1); | |
376 | rio_table_ptr->riodev_count = readb(io_mem + offset + 2); | |
377 | rio_table_ptr->offset = offset + 3 ; | |
f7625980 | 378 | |
1da177e4 LT |
379 | debug("info about rio table hdr ---\n"); |
380 | debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ", | |
381 | rio_table_ptr->ver_num, rio_table_ptr->scal_count, | |
382 | rio_table_ptr->riodev_count, rio_table_ptr->offset); | |
383 | ||
384 | rio_complete = 1; | |
385 | } | |
386 | } | |
387 | ||
388 | if (!hs_complete && !rio_complete) | |
389 | goto error_nodev; | |
390 | ||
391 | if (rio_table_ptr) { | |
392 | if (rio_complete && rio_table_ptr->ver_num == 3) { | |
ff3ce480 | 393 | rc = ebda_rio_table(); |
1da177e4 LT |
394 | if (rc) |
395 | goto out; | |
396 | } | |
397 | } | |
ff3ce480 | 398 | rc = ebda_rsrc_controller(); |
1da177e4 LT |
399 | if (rc) |
400 | goto out; | |
401 | ||
ff3ce480 | 402 | rc = ebda_rsrc_rsrc(); |
1da177e4 LT |
403 | goto out; |
404 | error_nodev: | |
405 | rc = -ENODEV; | |
406 | out: | |
ff3ce480 | 407 | iounmap(io_mem); |
1da177e4 LT |
408 | return rc; |
409 | } | |
410 | ||
411 | /* | |
412 | * map info of scalability details and rio details from physical address | |
413 | */ | |
ff3ce480 | 414 | static int __init ebda_rio_table(void) |
1da177e4 LT |
415 | { |
416 | u16 offset; | |
417 | u8 i; | |
418 | struct rio_detail *rio_detail_ptr; | |
419 | ||
420 | offset = rio_table_ptr->offset; | |
421 | offset += 12 * rio_table_ptr->scal_count; | |
422 | ||
423 | // we do concern about rio details | |
424 | for (i = 0; i < rio_table_ptr->riodev_count; i++) { | |
f5afe806 | 425 | rio_detail_ptr = kzalloc(sizeof(struct rio_detail), GFP_KERNEL); |
1da177e4 LT |
426 | if (!rio_detail_ptr) |
427 | return -ENOMEM; | |
ff3ce480 BS |
428 | rio_detail_ptr->rio_node_id = readb(io_mem + offset); |
429 | rio_detail_ptr->bbar = readl(io_mem + offset + 1); | |
430 | rio_detail_ptr->rio_type = readb(io_mem + offset + 5); | |
431 | rio_detail_ptr->owner_id = readb(io_mem + offset + 6); | |
432 | rio_detail_ptr->port0_node_connect = readb(io_mem + offset + 7); | |
433 | rio_detail_ptr->port0_port_connect = readb(io_mem + offset + 8); | |
434 | rio_detail_ptr->port1_node_connect = readb(io_mem + offset + 9); | |
435 | rio_detail_ptr->port1_port_connect = readb(io_mem + offset + 10); | |
436 | rio_detail_ptr->first_slot_num = readb(io_mem + offset + 11); | |
437 | rio_detail_ptr->status = readb(io_mem + offset + 12); | |
438 | rio_detail_ptr->wpindex = readb(io_mem + offset + 13); | |
439 | rio_detail_ptr->chassis_num = readb(io_mem + offset + 14); | |
440 | // 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); | |
1da177e4 | 441 | //create linked list of chassis |
f7625980 | 442 | if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) |
ff3ce480 | 443 | list_add(&rio_detail_ptr->rio_detail_list, &rio_vg_head); |
f7625980 BH |
444 | //create linked list of expansion box |
445 | else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) | |
ff3ce480 | 446 | list_add(&rio_detail_ptr->rio_detail_list, &rio_lo_head); |
f7625980 | 447 | else |
1da177e4 | 448 | // not in my concern |
ff3ce480 | 449 | kfree(rio_detail_ptr); |
1da177e4 LT |
450 | offset += 15; |
451 | } | |
ff3ce480 BS |
452 | print_lo_info(); |
453 | print_vg_info(); | |
1da177e4 LT |
454 | return 0; |
455 | } | |
456 | ||
457 | /* | |
f7625980 | 458 | * reorganizing linked list of chassis |
1da177e4 | 459 | */ |
ff3ce480 | 460 | static struct opt_rio *search_opt_vg(u8 chassis_num) |
1da177e4 LT |
461 | { |
462 | struct opt_rio *ptr; | |
2fd39aa7 | 463 | list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) { |
1da177e4 LT |
464 | if (ptr->chassis_num == chassis_num) |
465 | return ptr; | |
f7625980 | 466 | } |
1da177e4 LT |
467 | return NULL; |
468 | } | |
469 | ||
ff3ce480 | 470 | static int __init combine_wpg_for_chassis(void) |
1da177e4 LT |
471 | { |
472 | struct opt_rio *opt_rio_ptr = NULL; | |
473 | struct rio_detail *rio_detail_ptr = NULL; | |
f7625980 | 474 | |
2fd39aa7 | 475 | list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) { |
ff3ce480 | 476 | opt_rio_ptr = search_opt_vg(rio_detail_ptr->chassis_num); |
1da177e4 | 477 | if (!opt_rio_ptr) { |
f5afe806 | 478 | opt_rio_ptr = kzalloc(sizeof(struct opt_rio), GFP_KERNEL); |
1da177e4 LT |
479 | if (!opt_rio_ptr) |
480 | return -ENOMEM; | |
1da177e4 LT |
481 | opt_rio_ptr->rio_type = rio_detail_ptr->rio_type; |
482 | opt_rio_ptr->chassis_num = rio_detail_ptr->chassis_num; | |
483 | opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num; | |
484 | opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num; | |
ff3ce480 | 485 | list_add(&opt_rio_ptr->opt_rio_list, &opt_vg_head); |
f7625980 | 486 | } else { |
ff3ce480 BS |
487 | opt_rio_ptr->first_slot_num = min(opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num); |
488 | opt_rio_ptr->middle_num = max(opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num); | |
f7625980 | 489 | } |
1da177e4 | 490 | } |
ff3ce480 | 491 | print_opt_vg(); |
f7625980 BH |
492 | return 0; |
493 | } | |
1da177e4 LT |
494 | |
495 | /* | |
a8d2dbd3 | 496 | * reorganizing linked list of expansion box |
1da177e4 | 497 | */ |
ff3ce480 | 498 | static struct opt_rio_lo *search_opt_lo(u8 chassis_num) |
1da177e4 LT |
499 | { |
500 | struct opt_rio_lo *ptr; | |
2fd39aa7 | 501 | list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 LT |
502 | if (ptr->chassis_num == chassis_num) |
503 | return ptr; | |
f7625980 | 504 | } |
1da177e4 LT |
505 | return NULL; |
506 | } | |
507 | ||
ff3ce480 | 508 | static int combine_wpg_for_expansion(void) |
1da177e4 LT |
509 | { |
510 | struct opt_rio_lo *opt_rio_lo_ptr = NULL; | |
511 | struct rio_detail *rio_detail_ptr = NULL; | |
f7625980 | 512 | |
2fd39aa7 | 513 | list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) { |
ff3ce480 | 514 | opt_rio_lo_ptr = search_opt_lo(rio_detail_ptr->chassis_num); |
1da177e4 | 515 | if (!opt_rio_lo_ptr) { |
f5afe806 | 516 | opt_rio_lo_ptr = kzalloc(sizeof(struct opt_rio_lo), GFP_KERNEL); |
1da177e4 LT |
517 | if (!opt_rio_lo_ptr) |
518 | return -ENOMEM; | |
1da177e4 LT |
519 | opt_rio_lo_ptr->rio_type = rio_detail_ptr->rio_type; |
520 | opt_rio_lo_ptr->chassis_num = rio_detail_ptr->chassis_num; | |
521 | opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num; | |
522 | opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num; | |
523 | opt_rio_lo_ptr->pack_count = 1; | |
f7625980 | 524 | |
ff3ce480 | 525 | list_add(&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head); |
f7625980 | 526 | } else { |
ff3ce480 BS |
527 | opt_rio_lo_ptr->first_slot_num = min(opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num); |
528 | opt_rio_lo_ptr->middle_num = max(opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num); | |
1da177e4 | 529 | opt_rio_lo_ptr->pack_count = 2; |
f7625980 | 530 | } |
1da177e4 | 531 | } |
f7625980 | 532 | return 0; |
1da177e4 | 533 | } |
f7625980 | 534 | |
1da177e4 LT |
535 | |
536 | /* Since we don't know the max slot number per each chassis, hence go | |
537 | * through the list of all chassis to find out the range | |
f7625980 BH |
538 | * Arguments: slot_num, 1st slot number of the chassis we think we are on, |
539 | * var (0 = chassis, 1 = expansion box) | |
1da177e4 | 540 | */ |
ff3ce480 | 541 | static int first_slot_num(u8 slot_num, u8 first_slot, u8 var) |
1da177e4 LT |
542 | { |
543 | struct opt_rio *opt_vg_ptr = NULL; | |
544 | struct opt_rio_lo *opt_lo_ptr = NULL; | |
1da177e4 LT |
545 | int rc = 0; |
546 | ||
547 | if (!var) { | |
2fd39aa7 | 548 | list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { |
f7625980 | 549 | if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { |
1da177e4 LT |
550 | rc = -ENODEV; |
551 | break; | |
552 | } | |
553 | } | |
554 | } else { | |
2fd39aa7 | 555 | list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 LT |
556 | if ((first_slot < opt_lo_ptr->first_slot_num) && (slot_num >= opt_lo_ptr->first_slot_num)) { |
557 | rc = -ENODEV; | |
558 | break; | |
559 | } | |
560 | } | |
561 | } | |
562 | return rc; | |
563 | } | |
564 | ||
ff3ce480 | 565 | static struct opt_rio_lo *find_rxe_num(u8 slot_num) |
1da177e4 LT |
566 | { |
567 | struct opt_rio_lo *opt_lo_ptr; | |
1da177e4 | 568 | |
2fd39aa7 | 569 | list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) { |
1da177e4 | 570 | //check to see if this slot_num belongs to expansion box |
ff3ce480 | 571 | if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num(slot_num, opt_lo_ptr->first_slot_num, 1))) |
1da177e4 LT |
572 | return opt_lo_ptr; |
573 | } | |
574 | return NULL; | |
575 | } | |
576 | ||
ff3ce480 | 577 | static struct opt_rio *find_chassis_num(u8 slot_num) |
1da177e4 LT |
578 | { |
579 | struct opt_rio *opt_vg_ptr; | |
1da177e4 | 580 | |
2fd39aa7 | 581 | list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) { |
f7625980 | 582 | //check to see if this slot_num belongs to chassis |
ff3ce480 | 583 | if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num(slot_num, opt_vg_ptr->first_slot_num, 0))) |
1da177e4 LT |
584 | return opt_vg_ptr; |
585 | } | |
586 | return NULL; | |
587 | } | |
588 | ||
589 | /* This routine will find out how many slots are in the chassis, so that | |
590 | * the slot numbers for rxe100 would start from 1, and not from 7, or 6 etc | |
591 | */ | |
ff3ce480 | 592 | static u8 calculate_first_slot(u8 slot_num) |
1da177e4 LT |
593 | { |
594 | u8 first_slot = 1; | |
3c78bc61 | 595 | struct slot *slot_cur; |
f7625980 | 596 | |
2fd39aa7 | 597 | list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) { |
1da177e4 | 598 | if (slot_cur->ctrl) { |
f7625980 | 599 | if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) |
1da177e4 LT |
600 | first_slot = slot_cur->ctrl->ending_slot_num; |
601 | } | |
f7625980 | 602 | } |
1da177e4 LT |
603 | return first_slot + 1; |
604 | ||
605 | } | |
a32615a1 AC |
606 | |
607 | #define SLOT_NAME_SIZE 30 | |
608 | ||
ff3ce480 | 609 | static char *create_file_name(struct slot *slot_cur) |
1da177e4 LT |
610 | { |
611 | struct opt_rio *opt_vg_ptr = NULL; | |
612 | struct opt_rio_lo *opt_lo_ptr = NULL; | |
a32615a1 | 613 | static char str[SLOT_NAME_SIZE]; |
1da177e4 LT |
614 | int which = 0; /* rxe = 1, chassis = 0 */ |
615 | u8 number = 1; /* either chassis or rxe # */ | |
616 | u8 first_slot = 1; | |
617 | u8 slot_num; | |
618 | u8 flag = 0; | |
619 | ||
620 | if (!slot_cur) { | |
ff3ce480 | 621 | err("Structure passed is empty\n"); |
1da177e4 LT |
622 | return NULL; |
623 | } | |
f7625980 | 624 | |
1da177e4 LT |
625 | slot_num = slot_cur->number; |
626 | ||
ff3ce480 | 627 | memset(str, 0, sizeof(str)); |
f7625980 | 628 | |
1da177e4 LT |
629 | if (rio_table_ptr) { |
630 | if (rio_table_ptr->ver_num == 3) { | |
ff3ce480 BS |
631 | opt_vg_ptr = find_chassis_num(slot_num); |
632 | opt_lo_ptr = find_rxe_num(slot_num); | |
1da177e4 LT |
633 | } |
634 | } | |
635 | if (opt_vg_ptr) { | |
636 | if (opt_lo_ptr) { | |
637 | if ((slot_num - opt_vg_ptr->first_slot_num) > (slot_num - opt_lo_ptr->first_slot_num)) { | |
638 | number = opt_lo_ptr->chassis_num; | |
639 | first_slot = opt_lo_ptr->first_slot_num; | |
640 | which = 1; /* it is RXE */ | |
641 | } else { | |
642 | first_slot = opt_vg_ptr->first_slot_num; | |
643 | number = opt_vg_ptr->chassis_num; | |
644 | which = 0; | |
645 | } | |
646 | } else { | |
647 | first_slot = opt_vg_ptr->first_slot_num; | |
648 | number = opt_vg_ptr->chassis_num; | |
649 | which = 0; | |
650 | } | |
651 | ++flag; | |
652 | } else if (opt_lo_ptr) { | |
653 | number = opt_lo_ptr->chassis_num; | |
654 | first_slot = opt_lo_ptr->first_slot_num; | |
655 | which = 1; | |
656 | ++flag; | |
657 | } else if (rio_table_ptr) { | |
658 | if (rio_table_ptr->ver_num == 3) { | |
659 | /* if both NULL and we DO have correct RIO table in BIOS */ | |
660 | return NULL; | |
661 | } | |
f7625980 | 662 | } |
1da177e4 LT |
663 | if (!flag) { |
664 | if (slot_cur->ctrl->ctlr_type == 4) { | |
ff3ce480 | 665 | first_slot = calculate_first_slot(slot_num); |
1da177e4 LT |
666 | which = 1; |
667 | } else { | |
668 | which = 0; | |
669 | } | |
670 | } | |
671 | ||
672 | sprintf(str, "%s%dslot%d", | |
673 | which == 0 ? "chassis" : "rxe", | |
674 | number, slot_num - first_slot + 1); | |
675 | return str; | |
676 | } | |
677 | ||
678 | static int fillslotinfo(struct hotplug_slot *hotplug_slot) | |
679 | { | |
680 | struct slot *slot; | |
681 | int rc = 0; | |
682 | ||
683 | if (!hotplug_slot || !hotplug_slot->private) | |
684 | return -EINVAL; | |
685 | ||
686 | slot = hotplug_slot->private; | |
687 | rc = ibmphp_hpc_readslot(slot, READ_ALLSTAT, NULL); | |
688 | if (rc) | |
689 | return rc; | |
690 | ||
691 | // power - enabled:1 not:0 | |
692 | hotplug_slot->info->power_status = SLOT_POWER(slot->status); | |
693 | ||
694 | // attention - off:0, on:1, blinking:2 | |
695 | hotplug_slot->info->attention_status = SLOT_ATTN(slot->status, slot->ext_status); | |
696 | ||
697 | // latch - open:1 closed:0 | |
698 | hotplug_slot->info->latch_status = SLOT_LATCH(slot->status); | |
699 | ||
700 | // pci board - present:1 not:0 | |
ff3ce480 | 701 | if (SLOT_PRESENT(slot->status)) |
1da177e4 LT |
702 | hotplug_slot->info->adapter_status = 1; |
703 | else | |
704 | hotplug_slot->info->adapter_status = 0; | |
705 | /* | |
706 | if (slot->bus_on->supported_bus_mode | |
707 | && (slot->bus_on->supported_speed == BUS_SPEED_66)) | |
708 | hotplug_slot->info->max_bus_speed_status = BUS_SPEED_66PCIX; | |
709 | else | |
710 | hotplug_slot->info->max_bus_speed_status = slot->bus_on->supported_speed; | |
711 | */ | |
712 | ||
713 | return rc; | |
714 | } | |
715 | ||
716 | static void release_slot(struct hotplug_slot *hotplug_slot) | |
717 | { | |
718 | struct slot *slot; | |
719 | ||
720 | if (!hotplug_slot || !hotplug_slot->private) | |
721 | return; | |
722 | ||
723 | slot = hotplug_slot->private; | |
724 | kfree(slot->hotplug_slot->info); | |
1da177e4 LT |
725 | kfree(slot->hotplug_slot); |
726 | slot->ctrl = NULL; | |
727 | slot->bus_on = NULL; | |
728 | ||
729 | /* we don't want to actually remove the resources, since free_resources will do just that */ | |
730 | ibmphp_unconfigure_card(&slot, -1); | |
731 | ||
ff3ce480 | 732 | kfree(slot); |
1da177e4 LT |
733 | } |
734 | ||
735 | static struct pci_driver ibmphp_driver; | |
736 | ||
737 | /* | |
738 | * map info (ctlr-id, slot count, slot#.. bus count, bus#, ctlr type...) of | |
739 | * each hpc from physical address to a list of hot plug controllers based on | |
740 | * hpc descriptors. | |
741 | */ | |
ff3ce480 | 742 | static int __init ebda_rsrc_controller(void) |
1da177e4 LT |
743 | { |
744 | u16 addr, addr_slot, addr_bus; | |
745 | u8 ctlr_id, temp, bus_index; | |
746 | u16 ctlr, slot, bus; | |
747 | u16 slot_num, bus_num, index; | |
748 | struct hotplug_slot *hp_slot_ptr; | |
749 | struct controller *hpc_ptr; | |
750 | struct ebda_hpc_bus *bus_ptr; | |
751 | struct ebda_hpc_slot *slot_ptr; | |
752 | struct bus_info *bus_info_ptr1, *bus_info_ptr2; | |
753 | int rc; | |
754 | struct slot *tmp_slot; | |
a32615a1 | 755 | char name[SLOT_NAME_SIZE]; |
1da177e4 LT |
756 | |
757 | addr = hpc_list_ptr->phys_addr; | |
758 | for (ctlr = 0; ctlr < hpc_list_ptr->num_ctlrs; ctlr++) { | |
759 | bus_index = 1; | |
ff3ce480 | 760 | ctlr_id = readb(io_mem + addr); |
1da177e4 | 761 | addr += 1; |
ff3ce480 | 762 | slot_num = readb(io_mem + addr); |
1da177e4 LT |
763 | |
764 | addr += 1; | |
765 | addr_slot = addr; /* offset of slot structure */ | |
766 | addr += (slot_num * 4); | |
767 | ||
ff3ce480 | 768 | bus_num = readb(io_mem + addr); |
1da177e4 LT |
769 | |
770 | addr += 1; | |
771 | addr_bus = addr; /* offset of bus */ | |
772 | addr += (bus_num * 9); /* offset of ctlr_type */ | |
ff3ce480 | 773 | temp = readb(io_mem + addr); |
1da177e4 LT |
774 | |
775 | addr += 1; | |
776 | /* init hpc structure */ | |
ff3ce480 BS |
777 | hpc_ptr = alloc_ebda_hpc(slot_num, bus_num); |
778 | if (!hpc_ptr) { | |
1da177e4 LT |
779 | rc = -ENOMEM; |
780 | goto error_no_hpc; | |
781 | } | |
782 | hpc_ptr->ctlr_id = ctlr_id; | |
783 | hpc_ptr->ctlr_relative_id = ctlr; | |
784 | hpc_ptr->slot_count = slot_num; | |
785 | hpc_ptr->bus_count = bus_num; | |
ff3ce480 BS |
786 | debug("now enter ctlr data structure ---\n"); |
787 | debug("ctlr id: %x\n", ctlr_id); | |
788 | debug("ctlr_relative_id: %x\n", hpc_ptr->ctlr_relative_id); | |
789 | debug("count of slots controlled by this ctlr: %x\n", slot_num); | |
790 | debug("count of buses controlled by this ctlr: %x\n", bus_num); | |
1da177e4 LT |
791 | |
792 | /* init slot structure, fetch slot, bus, cap... */ | |
793 | slot_ptr = hpc_ptr->slots; | |
794 | for (slot = 0; slot < slot_num; slot++) { | |
ff3ce480 BS |
795 | slot_ptr->slot_num = readb(io_mem + addr_slot); |
796 | slot_ptr->slot_bus_num = readb(io_mem + addr_slot + slot_num); | |
797 | slot_ptr->ctl_index = readb(io_mem + addr_slot + 2*slot_num); | |
798 | slot_ptr->slot_cap = readb(io_mem + addr_slot + 3*slot_num); | |
1da177e4 | 799 | |
f7625980 | 800 | // create bus_info lined list --- if only one slot per bus: slot_min = slot_max |
1da177e4 | 801 | |
ff3ce480 | 802 | bus_info_ptr2 = ibmphp_find_same_bus_num(slot_ptr->slot_bus_num); |
1da177e4 | 803 | if (!bus_info_ptr2) { |
f5afe806 | 804 | bus_info_ptr1 = kzalloc(sizeof(struct bus_info), GFP_KERNEL); |
1da177e4 LT |
805 | if (!bus_info_ptr1) { |
806 | rc = -ENOMEM; | |
807 | goto error_no_hp_slot; | |
808 | } | |
1da177e4 LT |
809 | bus_info_ptr1->slot_min = slot_ptr->slot_num; |
810 | bus_info_ptr1->slot_max = slot_ptr->slot_num; | |
811 | bus_info_ptr1->slot_count += 1; | |
812 | bus_info_ptr1->busno = slot_ptr->slot_bus_num; | |
813 | bus_info_ptr1->index = bus_index++; | |
814 | bus_info_ptr1->current_speed = 0xff; | |
815 | bus_info_ptr1->current_bus_mode = 0xff; | |
f7625980 | 816 | |
1da177e4 | 817 | bus_info_ptr1->controller_id = hpc_ptr->ctlr_id; |
f7625980 | 818 | |
ff3ce480 | 819 | list_add_tail(&bus_info_ptr1->bus_info_list, &bus_info_head); |
1da177e4 LT |
820 | |
821 | } else { | |
ff3ce480 BS |
822 | bus_info_ptr2->slot_min = min(bus_info_ptr2->slot_min, slot_ptr->slot_num); |
823 | bus_info_ptr2->slot_max = max(bus_info_ptr2->slot_max, slot_ptr->slot_num); | |
1da177e4 LT |
824 | bus_info_ptr2->slot_count += 1; |
825 | ||
826 | } | |
827 | ||
828 | // end of creating the bus_info linked list | |
829 | ||
830 | slot_ptr++; | |
831 | addr_slot += 1; | |
832 | } | |
833 | ||
834 | /* init bus structure */ | |
835 | bus_ptr = hpc_ptr->buses; | |
836 | for (bus = 0; bus < bus_num; bus++) { | |
ff3ce480 BS |
837 | bus_ptr->bus_num = readb(io_mem + addr_bus + bus); |
838 | bus_ptr->slots_at_33_conv = readb(io_mem + addr_bus + bus_num + 8 * bus); | |
839 | bus_ptr->slots_at_66_conv = readb(io_mem + addr_bus + bus_num + 8 * bus + 1); | |
1da177e4 | 840 | |
ff3ce480 | 841 | bus_ptr->slots_at_66_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 2); |
1da177e4 | 842 | |
ff3ce480 | 843 | bus_ptr->slots_at_100_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 3); |
1da177e4 | 844 | |
ff3ce480 | 845 | bus_ptr->slots_at_133_pcix = readb(io_mem + addr_bus + bus_num + 8 * bus + 4); |
1da177e4 | 846 | |
ff3ce480 | 847 | bus_info_ptr2 = ibmphp_find_same_bus_num(bus_ptr->bus_num); |
1da177e4 LT |
848 | if (bus_info_ptr2) { |
849 | bus_info_ptr2->slots_at_33_conv = bus_ptr->slots_at_33_conv; | |
850 | bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv; | |
851 | bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix; | |
852 | bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix; | |
f7625980 | 853 | bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; |
1da177e4 LT |
854 | } |
855 | bus_ptr++; | |
856 | } | |
857 | ||
858 | hpc_ptr->ctlr_type = temp; | |
859 | ||
860 | switch (hpc_ptr->ctlr_type) { | |
861 | case 1: | |
ff3ce480 BS |
862 | hpc_ptr->u.pci_ctlr.bus = readb(io_mem + addr); |
863 | hpc_ptr->u.pci_ctlr.dev_fun = readb(io_mem + addr + 1); | |
864 | hpc_ptr->irq = readb(io_mem + addr + 2); | |
1da177e4 | 865 | addr += 3; |
ff3ce480 | 866 | debug("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", |
1da177e4 LT |
867 | hpc_ptr->u.pci_ctlr.bus, |
868 | hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq); | |
869 | break; | |
870 | ||
871 | case 0: | |
ff3ce480 BS |
872 | hpc_ptr->u.isa_ctlr.io_start = readw(io_mem + addr); |
873 | hpc_ptr->u.isa_ctlr.io_end = readw(io_mem + addr + 2); | |
874 | if (!request_region(hpc_ptr->u.isa_ctlr.io_start, | |
1da177e4 LT |
875 | (hpc_ptr->u.isa_ctlr.io_end - hpc_ptr->u.isa_ctlr.io_start + 1), |
876 | "ibmphp")) { | |
877 | rc = -ENODEV; | |
878 | goto error_no_hp_slot; | |
879 | } | |
ff3ce480 | 880 | hpc_ptr->irq = readb(io_mem + addr + 4); |
1da177e4 LT |
881 | addr += 5; |
882 | break; | |
883 | ||
884 | case 2: | |
885 | case 4: | |
ff3ce480 BS |
886 | hpc_ptr->u.wpeg_ctlr.wpegbbar = readl(io_mem + addr); |
887 | hpc_ptr->u.wpeg_ctlr.i2c_addr = readb(io_mem + addr + 4); | |
888 | hpc_ptr->irq = readb(io_mem + addr + 5); | |
1da177e4 LT |
889 | addr += 6; |
890 | break; | |
891 | default: | |
892 | rc = -ENODEV; | |
893 | goto error_no_hp_slot; | |
894 | } | |
895 | ||
896 | //reorganize chassis' linked list | |
ff3ce480 BS |
897 | combine_wpg_for_chassis(); |
898 | combine_wpg_for_expansion(); | |
1da177e4 LT |
899 | hpc_ptr->revision = 0xff; |
900 | hpc_ptr->options = 0xff; | |
901 | hpc_ptr->starting_slot_num = hpc_ptr->slots[0].slot_num; | |
902 | hpc_ptr->ending_slot_num = hpc_ptr->slots[slot_num-1].slot_num; | |
903 | ||
904 | // register slots with hpc core as well as create linked list of ibm slot | |
905 | for (index = 0; index < hpc_ptr->slot_count; index++) { | |
906 | ||
f5afe806 | 907 | hp_slot_ptr = kzalloc(sizeof(*hp_slot_ptr), GFP_KERNEL); |
1da177e4 LT |
908 | if (!hp_slot_ptr) { |
909 | rc = -ENOMEM; | |
910 | goto error_no_hp_slot; | |
911 | } | |
1da177e4 | 912 | |
f5afe806 | 913 | hp_slot_ptr->info = kzalloc(sizeof(struct hotplug_slot_info), GFP_KERNEL); |
1da177e4 LT |
914 | if (!hp_slot_ptr->info) { |
915 | rc = -ENOMEM; | |
916 | goto error_no_hp_info; | |
917 | } | |
1da177e4 | 918 | |
f5afe806 | 919 | tmp_slot = kzalloc(sizeof(*tmp_slot), GFP_KERNEL); |
1da177e4 LT |
920 | if (!tmp_slot) { |
921 | rc = -ENOMEM; | |
922 | goto error_no_slot; | |
923 | } | |
1da177e4 | 924 | |
dc6712d1 | 925 | tmp_slot->flag = 1; |
1da177e4 LT |
926 | |
927 | tmp_slot->capabilities = hpc_ptr->slots[index].slot_cap; | |
928 | if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_133_MAX) == EBDA_SLOT_133_MAX) | |
929 | tmp_slot->supported_speed = 3; | |
930 | else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_100_MAX) == EBDA_SLOT_100_MAX) | |
931 | tmp_slot->supported_speed = 2; | |
932 | else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX) | |
933 | tmp_slot->supported_speed = 1; | |
f7625980 | 934 | |
1da177e4 LT |
935 | if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP) |
936 | tmp_slot->supported_bus_mode = 1; | |
937 | else | |
938 | tmp_slot->supported_bus_mode = 0; | |
939 | ||
940 | ||
941 | tmp_slot->bus = hpc_ptr->slots[index].slot_bus_num; | |
942 | ||
ff3ce480 | 943 | bus_info_ptr1 = ibmphp_find_same_bus_num(hpc_ptr->slots[index].slot_bus_num); |
1da177e4 | 944 | if (!bus_info_ptr1) { |
b91aac29 | 945 | kfree(tmp_slot); |
1da177e4 LT |
946 | rc = -ENODEV; |
947 | goto error; | |
948 | } | |
949 | tmp_slot->bus_on = bus_info_ptr1; | |
950 | bus_info_ptr1 = NULL; | |
951 | tmp_slot->ctrl = hpc_ptr; | |
952 | ||
953 | tmp_slot->ctlr_index = hpc_ptr->slots[index].ctl_index; | |
954 | tmp_slot->number = hpc_ptr->slots[index].slot_num; | |
955 | tmp_slot->hotplug_slot = hp_slot_ptr; | |
956 | ||
957 | hp_slot_ptr->private = tmp_slot; | |
958 | hp_slot_ptr->release = release_slot; | |
959 | ||
960 | rc = fillslotinfo(hp_slot_ptr); | |
961 | if (rc) | |
962 | goto error; | |
963 | ||
ff3ce480 | 964 | rc = ibmphp_init_devno((struct slot **) &hp_slot_ptr->private); |
1da177e4 LT |
965 | if (rc) |
966 | goto error; | |
967 | hp_slot_ptr->ops = &ibmphp_hotplug_slot_ops; | |
968 | ||
969 | // end of registering ibm slot with hotplug core | |
970 | ||
ff3ce480 | 971 | list_add(&((struct slot *)(hp_slot_ptr->private))->ibm_slot_list, &ibmphp_slot_head); |
1da177e4 LT |
972 | } |
973 | ||
ff3ce480 BS |
974 | print_bus_info(); |
975 | list_add(&hpc_ptr->ebda_hpc_list, &ebda_hpc_head); | |
1da177e4 LT |
976 | |
977 | } /* each hpc */ | |
978 | ||
2fd39aa7 | 979 | list_for_each_entry(tmp_slot, &ibmphp_slot_head, ibm_slot_list) { |
a32615a1 | 980 | snprintf(name, SLOT_NAME_SIZE, "%s", create_file_name(tmp_slot)); |
f46753c5 | 981 | pci_hp_register(tmp_slot->hotplug_slot, |
a32615a1 | 982 | pci_find_bus(0, tmp_slot->bus), tmp_slot->device, name); |
1da177e4 LT |
983 | } |
984 | ||
ff3ce480 BS |
985 | print_ebda_hpc(); |
986 | print_ibm_slot(); | |
1da177e4 LT |
987 | return 0; |
988 | ||
989 | error: | |
ff3ce480 | 990 | kfree(hp_slot_ptr->private); |
1da177e4 | 991 | error_no_slot: |
ff3ce480 | 992 | kfree(hp_slot_ptr->info); |
1da177e4 | 993 | error_no_hp_info: |
ff3ce480 | 994 | kfree(hp_slot_ptr); |
1da177e4 | 995 | error_no_hp_slot: |
ff3ce480 | 996 | free_ebda_hpc(hpc_ptr); |
1da177e4 | 997 | error_no_hpc: |
ff3ce480 | 998 | iounmap(io_mem); |
1da177e4 LT |
999 | return rc; |
1000 | } | |
1001 | ||
f7625980 | 1002 | /* |
1da177e4 LT |
1003 | * map info (bus, devfun, start addr, end addr..) of i/o, memory, |
1004 | * pfm from the physical addr to a list of resource. | |
1005 | */ | |
ff3ce480 | 1006 | static int __init ebda_rsrc_rsrc(void) |
1da177e4 LT |
1007 | { |
1008 | u16 addr; | |
1009 | short rsrc; | |
1010 | u8 type, rsrc_type; | |
1011 | struct ebda_pci_rsrc *rsrc_ptr; | |
1012 | ||
1013 | addr = rsrc_list_ptr->phys_addr; | |
ff3ce480 BS |
1014 | debug("now entering rsrc land\n"); |
1015 | debug("offset of rsrc: %x\n", rsrc_list_ptr->phys_addr); | |
1da177e4 LT |
1016 | |
1017 | for (rsrc = 0; rsrc < rsrc_list_ptr->num_entries; rsrc++) { | |
ff3ce480 | 1018 | type = readb(io_mem + addr); |
1da177e4 LT |
1019 | |
1020 | addr += 1; | |
1021 | rsrc_type = type & EBDA_RSRC_TYPE_MASK; | |
1022 | ||
1023 | if (rsrc_type == EBDA_IO_RSRC_TYPE) { | |
ff3ce480 | 1024 | rsrc_ptr = alloc_ebda_pci_rsrc(); |
1da177e4 | 1025 | if (!rsrc_ptr) { |
ff3ce480 | 1026 | iounmap(io_mem); |
1da177e4 LT |
1027 | return -ENOMEM; |
1028 | } | |
1029 | rsrc_ptr->rsrc_type = type; | |
1030 | ||
ff3ce480 BS |
1031 | rsrc_ptr->bus_num = readb(io_mem + addr); |
1032 | rsrc_ptr->dev_fun = readb(io_mem + addr + 1); | |
1033 | rsrc_ptr->start_addr = readw(io_mem + addr + 2); | |
1034 | rsrc_ptr->end_addr = readw(io_mem + addr + 4); | |
1da177e4 LT |
1035 | addr += 6; |
1036 | ||
ff3ce480 BS |
1037 | debug("rsrc from io type ----\n"); |
1038 | debug("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", | |
1da177e4 LT |
1039 | rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); |
1040 | ||
ff3ce480 | 1041 | list_add(&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); |
1da177e4 LT |
1042 | } |
1043 | ||
1044 | if (rsrc_type == EBDA_MEM_RSRC_TYPE || rsrc_type == EBDA_PFM_RSRC_TYPE) { | |
ff3ce480 BS |
1045 | rsrc_ptr = alloc_ebda_pci_rsrc(); |
1046 | if (!rsrc_ptr) { | |
1047 | iounmap(io_mem); | |
1da177e4 LT |
1048 | return -ENOMEM; |
1049 | } | |
1050 | rsrc_ptr->rsrc_type = type; | |
1051 | ||
ff3ce480 BS |
1052 | rsrc_ptr->bus_num = readb(io_mem + addr); |
1053 | rsrc_ptr->dev_fun = readb(io_mem + addr + 1); | |
1054 | rsrc_ptr->start_addr = readl(io_mem + addr + 2); | |
1055 | rsrc_ptr->end_addr = readl(io_mem + addr + 6); | |
1da177e4 LT |
1056 | addr += 10; |
1057 | ||
ff3ce480 BS |
1058 | debug("rsrc from mem or pfm ---\n"); |
1059 | debug("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", | |
1da177e4 LT |
1060 | rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr); |
1061 | ||
ff3ce480 | 1062 | list_add(&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head); |
1da177e4 LT |
1063 | } |
1064 | } | |
ff3ce480 | 1065 | kfree(rsrc_list_ptr); |
1da177e4 | 1066 | rsrc_list_ptr = NULL; |
ff3ce480 | 1067 | print_ebda_pci_rsrc(); |
1da177e4 LT |
1068 | return 0; |
1069 | } | |
1070 | ||
ff3ce480 | 1071 | u16 ibmphp_get_total_controllers(void) |
1da177e4 LT |
1072 | { |
1073 | return hpc_list_ptr->num_ctlrs; | |
1074 | } | |
1075 | ||
ff3ce480 | 1076 | struct slot *ibmphp_get_slot_from_physical_num(u8 physical_num) |
1da177e4 LT |
1077 | { |
1078 | struct slot *slot; | |
1da177e4 | 1079 | |
2fd39aa7 | 1080 | list_for_each_entry(slot, &ibmphp_slot_head, ibm_slot_list) { |
1da177e4 LT |
1081 | if (slot->number == physical_num) |
1082 | return slot; | |
1083 | } | |
1084 | return NULL; | |
1085 | } | |
1086 | ||
1087 | /* To find: | |
1088 | * - the smallest slot number | |
1089 | * - the largest slot number | |
1090 | * - the total number of the slots based on each bus | |
1091 | * (if only one slot per bus slot_min = slot_max ) | |
1092 | */ | |
ff3ce480 | 1093 | struct bus_info *ibmphp_find_same_bus_num(u32 num) |
1da177e4 LT |
1094 | { |
1095 | struct bus_info *ptr; | |
1da177e4 | 1096 | |
2fd39aa7 | 1097 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
f7625980 | 1098 | if (ptr->busno == num) |
1da177e4 LT |
1099 | return ptr; |
1100 | } | |
1101 | return NULL; | |
1102 | } | |
1103 | ||
1104 | /* Finding relative bus number, in order to map corresponding | |
1105 | * bus register | |
1106 | */ | |
ff3ce480 | 1107 | int ibmphp_get_bus_index(u8 num) |
1da177e4 LT |
1108 | { |
1109 | struct bus_info *ptr; | |
1da177e4 | 1110 | |
2fd39aa7 | 1111 | list_for_each_entry(ptr, &bus_info_head, bus_info_list) { |
f7625980 | 1112 | if (ptr->busno == num) |
1da177e4 LT |
1113 | return ptr->index; |
1114 | } | |
1115 | return -ENODEV; | |
1116 | } | |
1117 | ||
ff3ce480 | 1118 | void ibmphp_free_bus_info_queue(void) |
1da177e4 | 1119 | { |
2ac83ccc | 1120 | struct bus_info *bus_info, *next; |
1da177e4 | 1121 | |
2ac83ccc GT |
1122 | list_for_each_entry_safe(bus_info, next, &bus_info_head, |
1123 | bus_info_list) { | |
1da177e4 LT |
1124 | kfree (bus_info); |
1125 | } | |
1126 | } | |
1127 | ||
ff3ce480 | 1128 | void ibmphp_free_ebda_hpc_queue(void) |
1da177e4 | 1129 | { |
2ac83ccc | 1130 | struct controller *controller = NULL, *next; |
1da177e4 LT |
1131 | int pci_flag = 0; |
1132 | ||
2ac83ccc GT |
1133 | list_for_each_entry_safe(controller, next, &ebda_hpc_head, |
1134 | ebda_hpc_list) { | |
1da177e4 | 1135 | if (controller->ctlr_type == 0) |
ff3ce480 | 1136 | release_region(controller->u.isa_ctlr.io_start, (controller->u.isa_ctlr.io_end - controller->u.isa_ctlr.io_start + 1)); |
1da177e4 LT |
1137 | else if ((controller->ctlr_type == 1) && (!pci_flag)) { |
1138 | ++pci_flag; | |
ff3ce480 | 1139 | pci_unregister_driver(&ibmphp_driver); |
1da177e4 | 1140 | } |
ff3ce480 | 1141 | free_ebda_hpc(controller); |
1da177e4 LT |
1142 | } |
1143 | } | |
1144 | ||
ff3ce480 | 1145 | void ibmphp_free_ebda_pci_rsrc_queue(void) |
1da177e4 | 1146 | { |
2ac83ccc | 1147 | struct ebda_pci_rsrc *resource, *next; |
1da177e4 | 1148 | |
2ac83ccc GT |
1149 | list_for_each_entry_safe(resource, next, &ibmphp_ebda_pci_rsrc_head, |
1150 | ebda_pci_rsrc_list) { | |
1da177e4 LT |
1151 | kfree (resource); |
1152 | resource = NULL; | |
1153 | } | |
1154 | } | |
1155 | ||
1156 | static struct pci_device_id id_table[] = { | |
1157 | { | |
1158 | .vendor = PCI_VENDOR_ID_IBM, | |
1159 | .device = HPC_DEVICE_ID, | |
1160 | .subvendor = PCI_VENDOR_ID_IBM, | |
1161 | .subdevice = HPC_SUBSYSTEM_ID, | |
1162 | .class = ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00), | |
1163 | }, {} | |
f7625980 | 1164 | }; |
1da177e4 LT |
1165 | |
1166 | MODULE_DEVICE_TABLE(pci, id_table); | |
1167 | ||
ff3ce480 | 1168 | static int ibmphp_probe(struct pci_dev *, const struct pci_device_id *); |
1da177e4 LT |
1169 | static struct pci_driver ibmphp_driver = { |
1170 | .name = "ibmphp", | |
1171 | .id_table = id_table, | |
1172 | .probe = ibmphp_probe, | |
1173 | }; | |
1174 | ||
ff3ce480 | 1175 | int ibmphp_register_pci(void) |
1da177e4 LT |
1176 | { |
1177 | struct controller *ctrl; | |
1da177e4 LT |
1178 | int rc = 0; |
1179 | ||
2fd39aa7 | 1180 | list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { |
1da177e4 LT |
1181 | if (ctrl->ctlr_type == 1) { |
1182 | rc = pci_register_driver(&ibmphp_driver); | |
1183 | break; | |
1184 | } | |
1185 | } | |
1186 | return rc; | |
1187 | } | |
ff3ce480 | 1188 | static int ibmphp_probe(struct pci_dev *dev, const struct pci_device_id *ids) |
1da177e4 LT |
1189 | { |
1190 | struct controller *ctrl; | |
1da177e4 | 1191 | |
ff3ce480 | 1192 | debug("inside ibmphp_probe\n"); |
f7625980 | 1193 | |
2fd39aa7 | 1194 | list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) { |
1da177e4 LT |
1195 | if (ctrl->ctlr_type == 1) { |
1196 | if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) { | |
1197 | ctrl->ctrl_dev = dev; | |
ff3ce480 BS |
1198 | debug("found device!!!\n"); |
1199 | debug("dev->device = %x, dev->subsystem_device = %x\n", dev->device, dev->subsystem_device); | |
1da177e4 LT |
1200 | return 0; |
1201 | } | |
1202 | } | |
1203 | } | |
1204 | return -ENODEV; | |
1205 | } |