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-rw-r--r--drivers/pci/hotplug/Makefile4
-rw-r--r--drivers/pci/hotplug/acpiphp.h47
-rw-r--r--drivers/pci/hotplug/acpiphp_core.c9
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c455
-rw-r--r--drivers/pci/hotplug/acpiphp_pci.c449
-rw-r--r--drivers/pci/hotplug/acpiphp_res.c700
6 files changed, 134 insertions, 1530 deletions
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 93c120ddbd39..3e632ff8c717 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -36,9 +36,7 @@ ibmphp-objs := ibmphp_core.o \
36 ibmphp_hpc.o 36 ibmphp_hpc.o
37 37
38acpiphp-objs := acpiphp_core.o \ 38acpiphp-objs := acpiphp_core.o \
39 acpiphp_glue.o \ 39 acpiphp_glue.o
40 acpiphp_pci.o \
41 acpiphp_res.o
42 40
43rpaphp-objs := rpaphp_core.o \ 41rpaphp-objs := rpaphp_core.o \
44 rpaphp_pci.o \ 42 rpaphp_pci.o \
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index d9499874c8a9..293603e1b7c3 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -7,6 +7,8 @@
7 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com) 7 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
8 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com) 8 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
9 * Copyright (C) 2002,2003 NEC Corporation 9 * Copyright (C) 2002,2003 NEC Corporation
10 * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
11 * Copyright (C) 2003-2005 Hewlett Packard
10 * 12 *
11 * All rights reserved. 13 * All rights reserved.
12 * 14 *
@@ -52,7 +54,6 @@
52 54
53struct acpiphp_bridge; 55struct acpiphp_bridge;
54struct acpiphp_slot; 56struct acpiphp_slot;
55struct pci_resource;
56 57
57/* 58/*
58 * struct slot - slot information for each *physical* slot 59 * struct slot - slot information for each *physical* slot
@@ -65,15 +66,6 @@ struct slot {
65 struct acpiphp_slot *acpi_slot; 66 struct acpiphp_slot *acpi_slot;
66}; 67};
67 68
68/*
69 * struct pci_resource - describes pci resource (mem, pfmem, io, bus)
70 */
71struct pci_resource {
72 struct pci_resource * next;
73 u64 base;
74 u32 length;
75};
76
77/** 69/**
78 * struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters 70 * struct hpp_param - ACPI 2.0 _HPP Hot Plug Parameters
79 * @cache_line_size in DWORD 71 * @cache_line_size in DWORD
@@ -101,10 +93,6 @@ struct acpiphp_bridge {
101 int type; 93 int type;
102 int nr_slots; 94 int nr_slots;
103 95
104 u8 seg;
105 u8 bus;
106 u8 sub;
107
108 u32 flags; 96 u32 flags;
109 97
110 /* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */ 98 /* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */
@@ -117,12 +105,6 @@ struct acpiphp_bridge {
117 struct hpp_param hpp; 105 struct hpp_param hpp;
118 106
119 spinlock_t res_lock; 107 spinlock_t res_lock;
120
121 /* available resources on this bus */
122 struct pci_resource *mem_head;
123 struct pci_resource *p_mem_head;
124 struct pci_resource *io_head;
125 struct pci_resource *bus_head;
126}; 108};
127 109
128 110
@@ -163,12 +145,6 @@ struct acpiphp_func {
163 145
164 u8 function; /* pci function# */ 146 u8 function; /* pci function# */
165 u32 flags; /* see below */ 147 u32 flags; /* see below */
166
167 /* resources used for this function */
168 struct pci_resource *mem_head;
169 struct pci_resource *p_mem_head;
170 struct pci_resource *io_head;
171 struct pci_resource *bus_head;
172}; 148};
173 149
174/** 150/**
@@ -243,25 +219,6 @@ extern u8 acpiphp_get_latch_status (struct acpiphp_slot *slot);
243extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot); 219extern u8 acpiphp_get_adapter_status (struct acpiphp_slot *slot);
244extern u32 acpiphp_get_address (struct acpiphp_slot *slot); 220extern u32 acpiphp_get_address (struct acpiphp_slot *slot);
245 221
246/* acpiphp_pci.c */
247extern struct pci_dev *acpiphp_allocate_pcidev (struct pci_bus *pbus, int dev, int fn);
248extern int acpiphp_configure_slot (struct acpiphp_slot *slot);
249extern int acpiphp_configure_function (struct acpiphp_func *func);
250extern void acpiphp_unconfigure_function (struct acpiphp_func *func);
251extern int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge);
252extern int acpiphp_init_func_resource (struct acpiphp_func *func);
253
254/* acpiphp_res.c */
255extern struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size);
256extern struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size);
257extern struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size);
258extern int acpiphp_resource_sort_and_combine (struct pci_resource **head);
259extern struct pci_resource *acpiphp_make_resource (u64 base, u32 length);
260extern void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to);
261extern void acpiphp_free_resource (struct pci_resource **res);
262extern void acpiphp_dump_resource (struct acpiphp_bridge *bridge); /* debug */
263extern void acpiphp_dump_func_resource (struct acpiphp_func *func); /* debug */
264
265/* variables */ 222/* variables */
266extern int acpiphp_debug; 223extern int acpiphp_debug;
267 224
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 4539e61a3dc1..60c4c38047a3 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -7,6 +7,8 @@
7 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com) 7 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
8 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com) 8 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
9 * Copyright (C) 2002,2003 NEC Corporation 9 * Copyright (C) 2002,2003 NEC Corporation
10 * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
11 * Copyright (C) 2003-2005 Hewlett Packard
10 * 12 *
11 * All rights reserved. 13 * All rights reserved.
12 * 14 *
@@ -53,8 +55,8 @@ int acpiphp_debug;
53static int num_slots; 55static int num_slots;
54static struct acpiphp_attention_info *attention_info; 56static struct acpiphp_attention_info *attention_info;
55 57
56#define DRIVER_VERSION "0.4" 58#define DRIVER_VERSION "0.5"
57#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kochi@bq.jp.nec.com>" 59#define DRIVER_AUTHOR "Greg Kroah-Hartman <gregkh@us.ibm.com>, Takayoshi Kochi <t-kochi@bq.jp.nec.com>, Matthew Wilcox <willy@hp.com>"
58#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver" 60#define DRIVER_DESC "ACPI Hot Plug PCI Controller Driver"
59 61
60MODULE_AUTHOR(DRIVER_AUTHOR); 62MODULE_AUTHOR(DRIVER_AUTHOR);
@@ -281,8 +283,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
281/** 283/**
282 * get_address - get pci address of a slot 284 * get_address - get pci address of a slot
283 * @hotplug_slot: slot to get status 285 * @hotplug_slot: slot to get status
284 * @busdev: pointer to struct pci_busdev (seg, bus, dev) 286 * @value: pointer to struct pci_busdev (seg, bus, dev)
285 *
286 */ 287 */
287static int get_address(struct hotplug_slot *hotplug_slot, u32 *value) 288static int get_address(struct hotplug_slot *hotplug_slot, u32 *value)
288{ 289{
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index e7f41294f811..41c3eb28b69d 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -4,6 +4,8 @@
4 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com) 4 * Copyright (C) 2002,2003 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
5 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com) 5 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
6 * Copyright (C) 2002,2003 NEC Corporation 6 * Copyright (C) 2002,2003 NEC Corporation
7 * Copyright (C) 2003-2005 Matthew Wilcox (matthew.wilcox@hp.com)
8 * Copyright (C) 2003-2005 Hewlett Packard
7 * 9 *
8 * All rights reserved. 10 * All rights reserved.
9 * 11 *
@@ -26,6 +28,16 @@
26 * 28 *
27 */ 29 */
28 30
31/*
32 * Lifetime rules for pci_dev:
33 * - The one in acpiphp_func has its refcount elevated by pci_get_slot()
34 * when the driver is loaded or when an insertion event occurs. It loses
35 * a refcount when its ejected or the driver unloads.
36 * - The one in acpiphp_bridge has its refcount elevated by pci_get_slot()
37 * when the bridge is scanned and it loses a refcount when the bridge
38 * is removed.
39 */
40
29#include <linux/init.h> 41#include <linux/init.h>
30#include <linux/module.h> 42#include <linux/module.h>
31 43
@@ -178,21 +190,18 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
178 190
179 bridge->nr_slots++; 191 bridge->nr_slots++;
180 192
181 dbg("found ACPI PCI Hotplug slot at PCI %02x:%02x Slot:%d\n", 193 dbg("found ACPI PCI Hotplug slot %d at PCI %04x:%02x:%02x\n",
182 slot->bridge->bus, slot->device, slot->sun); 194 slot->sun, pci_domain_nr(bridge->pci_bus),
195 bridge->pci_bus->number, slot->device);
183 } 196 }
184 197
185 newfunc->slot = slot; 198 newfunc->slot = slot;
186 list_add_tail(&newfunc->sibling, &slot->funcs); 199 list_add_tail(&newfunc->sibling, &slot->funcs);
187 200
188 /* associate corresponding pci_dev */ 201 /* associate corresponding pci_dev */
189 newfunc->pci_dev = pci_find_slot(bridge->bus, 202 newfunc->pci_dev = pci_get_slot(bridge->pci_bus,
190 PCI_DEVFN(device, function)); 203 PCI_DEVFN(device, function));
191 if (newfunc->pci_dev) { 204 if (newfunc->pci_dev) {
192 if (acpiphp_init_func_resource(newfunc) < 0) {
193 kfree(newfunc);
194 return AE_ERROR;
195 }
196 slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON); 205 slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
197 } 206 }
198 207
@@ -227,62 +236,6 @@ static int detect_ejectable_slots(acpi_handle *bridge_handle)
227} 236}
228 237
229 238
230/* decode ACPI _CRS data and convert into our internal resource list
231 * TBD: _TRA, etc.
232 */
233static acpi_status
234decode_acpi_resource(struct acpi_resource *resource, void *context)
235{
236 struct acpiphp_bridge *bridge = (struct acpiphp_bridge *) context;
237 struct acpi_resource_address64 address;
238 struct pci_resource *res;
239
240 if (resource->id != ACPI_RSTYPE_ADDRESS16 &&
241 resource->id != ACPI_RSTYPE_ADDRESS32 &&
242 resource->id != ACPI_RSTYPE_ADDRESS64)
243 return AE_OK;
244
245 acpi_resource_to_address64(resource, &address);
246
247 if (address.producer_consumer == ACPI_PRODUCER && address.address_length > 0) {
248 dbg("resource type: %d: 0x%llx - 0x%llx\n", address.resource_type,
249 (unsigned long long)address.min_address_range,
250 (unsigned long long)address.max_address_range);
251 res = acpiphp_make_resource(address.min_address_range,
252 address.address_length);
253 if (!res) {
254 err("out of memory\n");
255 return AE_OK;
256 }
257
258 switch (address.resource_type) {
259 case ACPI_MEMORY_RANGE:
260 if (address.attribute.memory.cache_attribute == ACPI_PREFETCHABLE_MEMORY) {
261 res->next = bridge->p_mem_head;
262 bridge->p_mem_head = res;
263 } else {
264 res->next = bridge->mem_head;
265 bridge->mem_head = res;
266 }
267 break;
268 case ACPI_IO_RANGE:
269 res->next = bridge->io_head;
270 bridge->io_head = res;
271 break;
272 case ACPI_BUS_NUMBER_RANGE:
273 res->next = bridge->bus_head;
274 bridge->bus_head = res;
275 break;
276 default:
277 /* invalid type */
278 kfree(res);
279 break;
280 }
281 }
282
283 return AE_OK;
284}
285
286/* decode ACPI 2.0 _HPP hot plug parameters */ 239/* decode ACPI 2.0 _HPP hot plug parameters */
287static void decode_hpp(struct acpiphp_bridge *bridge) 240static void decode_hpp(struct acpiphp_bridge *bridge)
288{ 241{
@@ -346,9 +299,6 @@ static void init_bridge_misc(struct acpiphp_bridge *bridge)
346 /* decode ACPI 2.0 _HPP (hot plug parameters) */ 299 /* decode ACPI 2.0 _HPP (hot plug parameters) */
347 decode_hpp(bridge); 300 decode_hpp(bridge);
348 301
349 /* subtract all resources already allocated */
350 acpiphp_detect_pci_resource(bridge);
351
352 /* register all slot objects under this bridge */ 302 /* register all slot objects under this bridge */
353 status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1, 303 status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1,
354 register_slot, bridge, NULL); 304 register_slot, bridge, NULL);
@@ -364,16 +314,12 @@ static void init_bridge_misc(struct acpiphp_bridge *bridge)
364 } 314 }
365 315
366 list_add(&bridge->list, &bridge_list); 316 list_add(&bridge->list, &bridge_list);
367
368 dbg("Bridge resource:\n");
369 acpiphp_dump_resource(bridge);
370} 317}
371 318
372 319
373/* allocate and initialize host bridge data structure */ 320/* allocate and initialize host bridge data structure */
374static void add_host_bridge(acpi_handle *handle, int seg, int bus) 321static void add_host_bridge(acpi_handle *handle, struct pci_bus *pci_bus)
375{ 322{
376 acpi_status status;
377 struct acpiphp_bridge *bridge; 323 struct acpiphp_bridge *bridge;
378 324
379 bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL); 325 bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
@@ -384,52 +330,19 @@ static void add_host_bridge(acpi_handle *handle, int seg, int bus)
384 330
385 bridge->type = BRIDGE_TYPE_HOST; 331 bridge->type = BRIDGE_TYPE_HOST;
386 bridge->handle = handle; 332 bridge->handle = handle;
387 bridge->seg = seg;
388 bridge->bus = bus;
389 333
390 bridge->pci_bus = pci_find_bus(seg, bus); 334 bridge->pci_bus = pci_bus;
391 335
392 spin_lock_init(&bridge->res_lock); 336 spin_lock_init(&bridge->res_lock);
393 337
394 /* to be overridden when we decode _CRS */
395 bridge->sub = bridge->bus;
396
397 /* decode resources */
398
399 status = acpi_walk_resources(handle, METHOD_NAME__CRS,
400 decode_acpi_resource, bridge);
401
402 if (ACPI_FAILURE(status)) {
403 err("failed to decode bridge resources\n");
404 kfree(bridge);
405 return;
406 }
407
408 acpiphp_resource_sort_and_combine(&bridge->io_head);
409 acpiphp_resource_sort_and_combine(&bridge->mem_head);
410 acpiphp_resource_sort_and_combine(&bridge->p_mem_head);
411 acpiphp_resource_sort_and_combine(&bridge->bus_head);
412
413 dbg("ACPI _CRS resource:\n");
414 acpiphp_dump_resource(bridge);
415
416 if (bridge->bus_head) {
417 bridge->bus = bridge->bus_head->base;
418 bridge->sub = bridge->bus_head->base + bridge->bus_head->length - 1;
419 }
420
421 init_bridge_misc(bridge); 338 init_bridge_misc(bridge);
422} 339}
423 340
424 341
425/* allocate and initialize PCI-to-PCI bridge data structure */ 342/* allocate and initialize PCI-to-PCI bridge data structure */
426static void add_p2p_bridge(acpi_handle *handle, int seg, int bus, int dev, int fn) 343static void add_p2p_bridge(acpi_handle *handle, struct pci_dev *pci_dev)
427{ 344{
428 struct acpiphp_bridge *bridge; 345 struct acpiphp_bridge *bridge;
429 u8 tmp8;
430 u16 tmp16;
431 u64 base64, limit64;
432 u32 base, limit, base32u, limit32u;
433 346
434 bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL); 347 bridge = kmalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
435 if (bridge == NULL) { 348 if (bridge == NULL) {
@@ -441,133 +354,22 @@ static void add_p2p_bridge(acpi_handle *handle, int seg, int bus, int dev, int f
441 354
442 bridge->type = BRIDGE_TYPE_P2P; 355 bridge->type = BRIDGE_TYPE_P2P;
443 bridge->handle = handle; 356 bridge->handle = handle;
444 bridge->seg = seg;
445 357
446 bridge->pci_dev = pci_find_slot(bus, PCI_DEVFN(dev, fn)); 358 bridge->pci_dev = pci_dev_get(pci_dev);
447 if (!bridge->pci_dev) { 359 bridge->pci_bus = pci_dev->subordinate;
448 err("Can't get pci_dev\n");
449 kfree(bridge);
450 return;
451 }
452
453 bridge->pci_bus = bridge->pci_dev->subordinate;
454 if (!bridge->pci_bus) { 360 if (!bridge->pci_bus) {
455 err("This is not a PCI-to-PCI bridge!\n"); 361 err("This is not a PCI-to-PCI bridge!\n");
456 kfree(bridge); 362 goto err;
457 return;
458 } 363 }
459 364
460 spin_lock_init(&bridge->res_lock); 365 spin_lock_init(&bridge->res_lock);
461 366
462 bridge->bus = bridge->pci_bus->number;
463 bridge->sub = bridge->pci_bus->subordinate;
464
465 /*
466 * decode resources under this P2P bridge
467 */
468
469 /* I/O resources */
470 pci_read_config_byte(bridge->pci_dev, PCI_IO_BASE, &tmp8);
471 base = tmp8;
472 pci_read_config_byte(bridge->pci_dev, PCI_IO_LIMIT, &tmp8);
473 limit = tmp8;
474
475 switch (base & PCI_IO_RANGE_TYPE_MASK) {
476 case PCI_IO_RANGE_TYPE_16:
477 base = (base << 8) & 0xf000;
478 limit = ((limit << 8) & 0xf000) + 0xfff;
479 bridge->io_head = acpiphp_make_resource((u64)base, limit - base + 1);
480 if (!bridge->io_head) {
481 err("out of memory\n");
482 kfree(bridge);
483 return;
484 }
485 dbg("16bit I/O range: %04x-%04x\n",
486 (u32)bridge->io_head->base,
487 (u32)(bridge->io_head->base + bridge->io_head->length - 1));
488 break;
489 case PCI_IO_RANGE_TYPE_32:
490 pci_read_config_word(bridge->pci_dev, PCI_IO_BASE_UPPER16, &tmp16);
491 base = ((u32)tmp16 << 16) | ((base << 8) & 0xf000);
492 pci_read_config_word(bridge->pci_dev, PCI_IO_LIMIT_UPPER16, &tmp16);
493 limit = (((u32)tmp16 << 16) | ((limit << 8) & 0xf000)) + 0xfff;
494 bridge->io_head = acpiphp_make_resource((u64)base, limit - base + 1);
495 if (!bridge->io_head) {
496 err("out of memory\n");
497 kfree(bridge);
498 return;
499 }
500 dbg("32bit I/O range: %08x-%08x\n",
501 (u32)bridge->io_head->base,
502 (u32)(bridge->io_head->base + bridge->io_head->length - 1));
503 break;
504 case 0x0f:
505 dbg("I/O space unsupported\n");
506 break;
507 default:
508 warn("Unknown I/O range type\n");
509 }
510
511 /* Memory resources (mandatory for P2P bridge) */
512 pci_read_config_word(bridge->pci_dev, PCI_MEMORY_BASE, &tmp16);
513 base = (tmp16 & 0xfff0) << 16;
514 pci_read_config_word(bridge->pci_dev, PCI_MEMORY_LIMIT, &tmp16);
515 limit = ((tmp16 & 0xfff0) << 16) | 0xfffff;
516 bridge->mem_head = acpiphp_make_resource((u64)base, limit - base + 1);
517 if (!bridge->mem_head) {
518 err("out of memory\n");
519 kfree(bridge);
520 return;
521 }
522 dbg("32bit Memory range: %08x-%08x\n",
523 (u32)bridge->mem_head->base,
524 (u32)(bridge->mem_head->base + bridge->mem_head->length-1));
525
526 /* Prefetchable Memory resources (optional) */
527 pci_read_config_word(bridge->pci_dev, PCI_PREF_MEMORY_BASE, &tmp16);
528 base = tmp16;
529 pci_read_config_word(bridge->pci_dev, PCI_PREF_MEMORY_LIMIT, &tmp16);
530 limit = tmp16;
531
532 switch (base & PCI_MEMORY_RANGE_TYPE_MASK) {
533 case PCI_PREF_RANGE_TYPE_32:
534 base = (base & 0xfff0) << 16;
535 limit = ((limit & 0xfff0) << 16) | 0xfffff;
536 bridge->p_mem_head = acpiphp_make_resource((u64)base, limit - base + 1);
537 if (!bridge->p_mem_head) {
538 err("out of memory\n");
539 kfree(bridge);
540 return;
541 }
542 dbg("32bit Prefetchable memory range: %08x-%08x\n",
543 (u32)bridge->p_mem_head->base,
544 (u32)(bridge->p_mem_head->base + bridge->p_mem_head->length - 1));
545 break;
546 case PCI_PREF_RANGE_TYPE_64:
547 pci_read_config_dword(bridge->pci_dev, PCI_PREF_BASE_UPPER32, &base32u);
548 pci_read_config_dword(bridge->pci_dev, PCI_PREF_LIMIT_UPPER32, &limit32u);
549 base64 = ((u64)base32u << 32) | ((base & 0xfff0) << 16);
550 limit64 = (((u64)limit32u << 32) | ((limit & 0xfff0) << 16)) + 0xfffff;
551
552 bridge->p_mem_head = acpiphp_make_resource(base64, limit64 - base64 + 1);
553 if (!bridge->p_mem_head) {
554 err("out of memory\n");
555 kfree(bridge);
556 return;
557 }
558 dbg("64bit Prefetchable memory range: %08x%08x-%08x%08x\n",
559 (u32)(bridge->p_mem_head->base >> 32),
560 (u32)(bridge->p_mem_head->base & 0xffffffff),
561 (u32)((bridge->p_mem_head->base + bridge->p_mem_head->length - 1) >> 32),
562 (u32)((bridge->p_mem_head->base + bridge->p_mem_head->length - 1) & 0xffffffff));
563 break;
564 case 0x0f:
565 break;
566 default:
567 warn("Unknown prefetchale memory type\n");
568 }
569
570 init_bridge_misc(bridge); 367 init_bridge_misc(bridge);
368 return;
369 err:
370 pci_dev_put(pci_dev);
371 kfree(bridge);
372 return;
571} 373}
572 374
573 375
@@ -577,14 +379,10 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
577{ 379{
578 acpi_status status; 380 acpi_status status;
579 acpi_handle dummy_handle; 381 acpi_handle dummy_handle;
580 unsigned long *segbus = context;
581 unsigned long tmp; 382 unsigned long tmp;
582 int seg, bus, device, function; 383 int device, function;
583 struct pci_dev *dev; 384 struct pci_dev *dev;
584 385 struct pci_bus *pci_bus = context;
585 /* get PCI address */
586 seg = (*segbus >> 8) & 0xff;
587 bus = *segbus & 0xff;
588 386
589 status = acpi_get_handle(handle, "_ADR", &dummy_handle); 387 status = acpi_get_handle(handle, "_ADR", &dummy_handle);
590 if (ACPI_FAILURE(status)) 388 if (ACPI_FAILURE(status))
@@ -599,20 +397,19 @@ find_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv)
599 device = (tmp >> 16) & 0xffff; 397 device = (tmp >> 16) & 0xffff;
600 function = tmp & 0xffff; 398 function = tmp & 0xffff;
601 399
602 dev = pci_find_slot(bus, PCI_DEVFN(device, function)); 400 dev = pci_get_slot(pci_bus, PCI_DEVFN(device, function));
603
604 if (!dev)
605 return AE_OK;
606 401
607 if (!dev->subordinate) 402 if (!dev || !dev->subordinate)
608 return AE_OK; 403 goto out;
609 404
610 /* check if this bridge has ejectable slots */ 405 /* check if this bridge has ejectable slots */
611 if (detect_ejectable_slots(handle) > 0) { 406 if (detect_ejectable_slots(handle) > 0) {
612 dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev)); 407 dbg("found PCI-to-PCI bridge at PCI %s\n", pci_name(dev));
613 add_p2p_bridge(handle, seg, bus, device, function); 408 add_p2p_bridge(handle, dev);
614 } 409 }
615 410
411 out:
412 pci_dev_put(dev);
616 return AE_OK; 413 return AE_OK;
617} 414}
618 415
@@ -624,6 +421,7 @@ static int add_bridge(acpi_handle handle)
624 unsigned long tmp; 421 unsigned long tmp;
625 int seg, bus; 422 int seg, bus;
626 acpi_handle dummy_handle; 423 acpi_handle dummy_handle;
424 struct pci_bus *pci_bus;
627 425
628 /* if the bridge doesn't have _STA, we assume it is always there */ 426 /* if the bridge doesn't have _STA, we assume it is always there */
629 status = acpi_get_handle(handle, "_STA", &dummy_handle); 427 status = acpi_get_handle(handle, "_STA", &dummy_handle);
@@ -653,18 +451,22 @@ static int add_bridge(acpi_handle handle)
653 bus = 0; 451 bus = 0;
654 } 452 }
655 453
454 pci_bus = pci_find_bus(seg, bus);
455 if (!pci_bus) {
456 err("Can't find bus %04x:%02x\n", seg, bus);
457 return 0;
458 }
459
656 /* check if this bridge has ejectable slots */ 460 /* check if this bridge has ejectable slots */
657 if (detect_ejectable_slots(handle) > 0) { 461 if (detect_ejectable_slots(handle) > 0) {
658 dbg("found PCI host-bus bridge with hot-pluggable slots\n"); 462 dbg("found PCI host-bus bridge with hot-pluggable slots\n");
659 add_host_bridge(handle, seg, bus); 463 add_host_bridge(handle, pci_bus);
660 return 0; 464 return 0;
661 } 465 }
662 466
663 tmp = seg << 8 | bus;
664
665 /* search P2P bridges under this host bridge */ 467 /* search P2P bridges under this host bridge */
666 status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, 468 status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
667 find_p2p_bridge, &tmp, NULL); 469 find_p2p_bridge, pci_bus, NULL);
668 470
669 if (ACPI_FAILURE(status)) 471 if (ACPI_FAILURE(status))
670 warn("find_p2p_bridge faied (error code = 0x%x)\n",status); 472 warn("find_p2p_bridge faied (error code = 0x%x)\n",status);
@@ -672,10 +474,59 @@ static int add_bridge(acpi_handle handle)
672 return 0; 474 return 0;
673} 475}
674 476
477static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
478{
479 struct list_head *head;
480 list_for_each(head, &bridge_list) {
481 struct acpiphp_bridge *bridge = list_entry(head,
482 struct acpiphp_bridge, list);
483 if (bridge->handle == handle)
484 return bridge;
485 }
486
487 return NULL;
488}
675 489
676static void remove_bridge(acpi_handle handle) 490static void remove_bridge(acpi_handle handle)
677{ 491{
678 /* No-op for now .. */ 492 struct list_head *list, *tmp;
493 struct acpiphp_bridge *bridge;
494 struct acpiphp_slot *slot;
495 acpi_status status;
496
497 bridge = acpiphp_handle_to_bridge(handle);
498 if (!bridge) {
499 err("Could not find bridge for handle %p\n", handle);
500 return;
501 }
502
503 status = acpi_remove_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
504 handle_hotplug_event_bridge);
505 if (ACPI_FAILURE(status))
506 err("failed to remove notify handler\n");
507
508 slot = bridge->slots;
509 while (slot) {
510 struct acpiphp_slot *next = slot->next;
511 list_for_each_safe (list, tmp, &slot->funcs) {
512 struct acpiphp_func *func;
513 func = list_entry(list, struct acpiphp_func, sibling);
514 status = acpi_remove_notify_handler(func->handle,
515 ACPI_SYSTEM_NOTIFY,
516 handle_hotplug_event_func);
517 if (ACPI_FAILURE(status))
518 err("failed to remove notify handler\n");
519 pci_dev_put(func->pci_dev);
520 list_del(list);
521 kfree(func);
522 }
523 kfree(slot);
524 slot = next;
525 }
526
527 pci_dev_put(bridge->pci_dev);
528 list_del(&bridge->list);
529 kfree(bridge);
679} 530}
680 531
681 532
@@ -782,70 +633,56 @@ static int power_off_slot(struct acpiphp_slot *slot)
782 */ 633 */
783static int enable_device(struct acpiphp_slot *slot) 634static int enable_device(struct acpiphp_slot *slot)
784{ 635{
785 u8 bus;
786 struct pci_dev *dev; 636 struct pci_dev *dev;
787 struct pci_bus *child; 637 struct pci_bus *bus = slot->bridge->pci_bus;
788 struct list_head *l; 638 struct list_head *l;
789 struct acpiphp_func *func; 639 struct acpiphp_func *func;
790 int retval = 0; 640 int retval = 0;
791 int num; 641 int num, max, pass;
792 642
793 if (slot->flags & SLOT_ENABLED) 643 if (slot->flags & SLOT_ENABLED)
794 goto err_exit; 644 goto err_exit;
795 645
796 /* sanity check: dev should be NULL when hot-plugged in */ 646 /* sanity check: dev should be NULL when hot-plugged in */
797 dev = pci_find_slot(slot->bridge->bus, PCI_DEVFN(slot->device, 0)); 647 dev = pci_get_slot(bus, PCI_DEVFN(slot->device, 0));
798 if (dev) { 648 if (dev) {
799 /* This case shouldn't happen */ 649 /* This case shouldn't happen */
800 err("pci_dev structure already exists.\n"); 650 err("pci_dev structure already exists.\n");
651 pci_dev_put(dev);
801 retval = -1; 652 retval = -1;
802 goto err_exit; 653 goto err_exit;
803 } 654 }
804 655
805 /* allocate resources to device */ 656 num = pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
806 retval = acpiphp_configure_slot(slot); 657 if (num == 0) {
807 if (retval)
808 goto err_exit;
809
810 /* returned `dev' is the *first function* only! */
811 num = pci_scan_slot(slot->bridge->pci_bus, PCI_DEVFN(slot->device, 0));
812 if (num)
813 pci_bus_add_devices(slot->bridge->pci_bus);
814 dev = pci_find_slot(slot->bridge->bus, PCI_DEVFN(slot->device, 0));
815
816 if (!dev) {
817 err("No new device found\n"); 658 err("No new device found\n");
818 retval = -1; 659 retval = -1;
819 goto err_exit; 660 goto err_exit;
820 } 661 }
821 662
822 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) { 663 max = bus->secondary;
823 pci_read_config_byte(dev, PCI_SECONDARY_BUS, &bus); 664 for (pass = 0; pass < 2; pass++) {
824 child = (struct pci_bus*) pci_add_new_bus(dev->bus, dev, bus); 665 list_for_each_entry(dev, &bus->devices, bus_list) {
825 pci_do_scan_bus(child); 666 if (PCI_SLOT(dev->devfn) != slot->device)
667 continue;
668 if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
669 dev->hdr_type == PCI_HEADER_TYPE_CARDBUS)
670 max = pci_scan_bridge(bus, dev, max, pass);
671 }
826 } 672 }
827 673
674 pci_bus_assign_resources(bus);
675 pci_bus_add_devices(bus);
676
828 /* associate pci_dev to our representation */ 677 /* associate pci_dev to our representation */
829 list_for_each (l, &slot->funcs) { 678 list_for_each (l, &slot->funcs) {
830 func = list_entry(l, struct acpiphp_func, sibling); 679 func = list_entry(l, struct acpiphp_func, sibling);
831 680 func->pci_dev = pci_get_slot(bus, PCI_DEVFN(slot->device,
832 func->pci_dev = pci_find_slot(slot->bridge->bus,
833 PCI_DEVFN(slot->device,
834 func->function)); 681 func->function));
835 if (!func->pci_dev)
836 continue;
837
838 /* configure device */
839 retval = acpiphp_configure_function(func);
840 if (retval)
841 goto err_exit;
842 } 682 }
843 683
844 slot->flags |= SLOT_ENABLED; 684 slot->flags |= SLOT_ENABLED;
845 685
846 dbg("Available resources:\n");
847 acpiphp_dump_resource(slot->bridge);
848
849 err_exit: 686 err_exit:
850 return retval; 687 return retval;
851} 688}
@@ -866,9 +703,12 @@ static int disable_device(struct acpiphp_slot *slot)
866 703
867 list_for_each (l, &slot->funcs) { 704 list_for_each (l, &slot->funcs) {
868 func = list_entry(l, struct acpiphp_func, sibling); 705 func = list_entry(l, struct acpiphp_func, sibling);
706 if (!func->pci_dev)
707 continue;
869 708
870 if (func->pci_dev) 709 pci_remove_bus_device(func->pci_dev);
871 acpiphp_unconfigure_function(func); 710 pci_dev_put(func->pci_dev);
711 func->pci_dev = NULL;
872 } 712 }
873 713
874 slot->flags &= (~SLOT_ENABLED); 714 slot->flags &= (~SLOT_ENABLED);
@@ -1116,46 +956,6 @@ int __init acpiphp_glue_init(void)
1116 */ 956 */
1117void __exit acpiphp_glue_exit(void) 957void __exit acpiphp_glue_exit(void)
1118{ 958{
1119 struct list_head *l1, *l2, *n1, *n2;
1120 struct acpiphp_bridge *bridge;
1121 struct acpiphp_slot *slot, *next;
1122 struct acpiphp_func *func;
1123 acpi_status status;
1124
1125 list_for_each_safe (l1, n1, &bridge_list) {
1126 bridge = (struct acpiphp_bridge *)l1;
1127 slot = bridge->slots;
1128 while (slot) {
1129 next = slot->next;
1130 list_for_each_safe (l2, n2, &slot->funcs) {
1131 func = list_entry(l2, struct acpiphp_func, sibling);
1132 acpiphp_free_resource(&func->io_head);
1133 acpiphp_free_resource(&func->mem_head);
1134 acpiphp_free_resource(&func->p_mem_head);
1135 acpiphp_free_resource(&func->bus_head);
1136 status = acpi_remove_notify_handler(func->handle,
1137 ACPI_SYSTEM_NOTIFY,
1138 handle_hotplug_event_func);
1139 if (ACPI_FAILURE(status))
1140 err("failed to remove notify handler\n");
1141 kfree(func);
1142 }
1143 kfree(slot);
1144 slot = next;
1145 }
1146 status = acpi_remove_notify_handler(bridge->handle, ACPI_SYSTEM_NOTIFY,
1147 handle_hotplug_event_bridge);
1148 if (ACPI_FAILURE(status))
1149 err("failed to remove notify handler\n");
1150
1151 acpiphp_free_resource(&bridge->io_head);
1152 acpiphp_free_resource(&bridge->mem_head);
1153 acpiphp_free_resource(&bridge->p_mem_head);
1154 acpiphp_free_resource(&bridge->bus_head);
1155
1156 kfree(bridge);
1157 }
1158
1159 acpi_pci_unregister_driver(&acpi_pci_hp_driver); 959 acpi_pci_unregister_driver(&acpi_pci_hp_driver);
1160} 960}
1161 961
@@ -1173,11 +973,14 @@ int __init acpiphp_get_num_slots(void)
1173 973
1174 list_for_each (node, &bridge_list) { 974 list_for_each (node, &bridge_list) {
1175 bridge = (struct acpiphp_bridge *)node; 975 bridge = (struct acpiphp_bridge *)node;
1176 dbg("Bus%d %dslot(s)\n", bridge->bus, bridge->nr_slots); 976 dbg("Bus %04x:%02x has %d slot%s\n",
977 pci_domain_nr(bridge->pci_bus),
978 bridge->pci_bus->number, bridge->nr_slots,
979 bridge->nr_slots == 1 ? "" : "s");
1177 num_slots += bridge->nr_slots; 980 num_slots += bridge->nr_slots;
1178 } 981 }
1179 982
1180 dbg("Total %dslots\n", num_slots); 983 dbg("Total %d slots\n", num_slots);
1181 return num_slots; 984 return num_slots;
1182} 985}
1183 986
@@ -1274,13 +1077,6 @@ int acpiphp_disable_slot(struct acpiphp_slot *slot)
1274 if (retval) 1077 if (retval)
1275 goto err_exit; 1078 goto err_exit;
1276 1079
1277 acpiphp_resource_sort_and_combine(&slot->bridge->io_head);
1278 acpiphp_resource_sort_and_combine(&slot->bridge->mem_head);
1279 acpiphp_resource_sort_and_combine(&slot->bridge->p_mem_head);
1280 acpiphp_resource_sort_and_combine(&slot->bridge->bus_head);
1281 dbg("Available resources:\n");
1282 acpiphp_dump_resource(slot->bridge);
1283
1284 err_exit: 1080 err_exit:
1285 up(&slot->crit_sect); 1081 up(&slot->crit_sect);
1286 return retval; 1082 return retval;
@@ -1335,9 +1131,10 @@ u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot)
1335u32 acpiphp_get_address(struct acpiphp_slot *slot) 1131u32 acpiphp_get_address(struct acpiphp_slot *slot)
1336{ 1132{
1337 u32 address; 1133 u32 address;
1134 struct pci_bus *pci_bus = slot->bridge->pci_bus;
1338 1135
1339 address = ((slot->bridge->seg) << 16) | 1136 address = (pci_domain_nr(pci_bus) << 16) |
1340 ((slot->bridge->bus) << 8) | 1137 (pci_bus->number << 8) |
1341 slot->device; 1138 slot->device;
1342 1139
1343 return address; 1140 return address;
diff --git a/drivers/pci/hotplug/acpiphp_pci.c b/drivers/pci/hotplug/acpiphp_pci.c
deleted file mode 100644
index 54d97c9d1dff..000000000000
--- a/drivers/pci/hotplug/acpiphp_pci.c
+++ /dev/null
@@ -1,449 +0,0 @@
1/*
2 * ACPI PCI HotPlug PCI configuration space management
3 *
4 * Copyright (C) 1995,2001 Compaq Computer Corporation
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001,2002 IBM Corp.
7 * Copyright (C) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
8 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
9 * Copyright (C) 2002 NEC Corporation
10 *
11 * All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or (at
16 * your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
21 * NON INFRINGEMENT. See the GNU General Public License for more
22 * details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 * Send feedback to <t-kochi@bq.jp.nec.com>
29 *
30 */
31
32#include <linux/init.h>
33#include <linux/module.h>
34
35#include <linux/kernel.h>
36#include <linux/pci.h>
37#include <linux/acpi.h>
38#include "../pci.h"
39#include "pci_hotplug.h"
40#include "acpiphp.h"
41
42#define MY_NAME "acpiphp_pci"
43
44
45/* allocate mem/pmem/io resource to a new function */
46static int init_config_space (struct acpiphp_func *func)
47{
48 u32 bar, len;
49 u32 address[] = {
50 PCI_BASE_ADDRESS_0,
51 PCI_BASE_ADDRESS_1,
52 PCI_BASE_ADDRESS_2,
53 PCI_BASE_ADDRESS_3,
54 PCI_BASE_ADDRESS_4,
55 PCI_BASE_ADDRESS_5,
56 0
57 };
58 int count;
59 struct acpiphp_bridge *bridge;
60 struct pci_resource *res;
61 struct pci_bus *pbus;
62 int bus, device, function;
63 unsigned int devfn;
64 u16 tmp;
65
66 bridge = func->slot->bridge;
67 pbus = bridge->pci_bus;
68 bus = bridge->bus;
69 device = func->slot->device;
70 function = func->function;
71 devfn = PCI_DEVFN(device, function);
72
73 for (count = 0; address[count]; count++) { /* for 6 BARs */
74 pci_bus_write_config_dword(pbus, devfn,
75 address[count], 0xFFFFFFFF);
76 pci_bus_read_config_dword(pbus, devfn, address[count], &bar);
77
78 if (!bar) /* This BAR is not implemented */
79 continue;
80
81 dbg("Device %02x.%02x BAR %d wants %x\n", device, function, count, bar);
82
83 if (bar & PCI_BASE_ADDRESS_SPACE_IO) {
84 /* This is IO */
85
86 len = bar & (PCI_BASE_ADDRESS_IO_MASK & 0xFFFF);
87 len = len & ~(len - 1);
88
89 dbg("len in IO %x, BAR %d\n", len, count);
90
91 spin_lock(&bridge->res_lock);
92 res = acpiphp_get_io_resource(&bridge->io_head, len);
93 spin_unlock(&bridge->res_lock);
94
95 if (!res) {
96 err("cannot allocate requested io for %02x:%02x.%d len %x\n",
97 bus, device, function, len);
98 return -1;
99 }
100 pci_bus_write_config_dword(pbus, devfn,
101 address[count],
102 (u32)res->base);
103 res->next = func->io_head;
104 func->io_head = res;
105
106 } else {
107 /* This is Memory */
108 if (bar & PCI_BASE_ADDRESS_MEM_PREFETCH) {
109 /* pfmem */
110
111 len = bar & 0xFFFFFFF0;
112 len = ~len + 1;
113
114 dbg("len in PFMEM %x, BAR %d\n", len, count);
115
116 spin_lock(&bridge->res_lock);
117 res = acpiphp_get_resource(&bridge->p_mem_head, len);
118 spin_unlock(&bridge->res_lock);
119
120 if (!res) {
121 err("cannot allocate requested pfmem for %02x:%02x.%d len %x\n",
122 bus, device, function, len);
123 return -1;
124 }
125
126 pci_bus_write_config_dword(pbus, devfn,
127 address[count],
128 (u32)res->base);
129
130 if (bar & PCI_BASE_ADDRESS_MEM_TYPE_64) { /* takes up another dword */
131 dbg("inside the pfmem 64 case, count %d\n", count);
132 count += 1;
133 pci_bus_write_config_dword(pbus, devfn,
134 address[count],
135 (u32)(res->base >> 32));
136 }
137
138 res->next = func->p_mem_head;
139 func->p_mem_head = res;
140
141 } else {
142 /* regular memory */
143
144 len = bar & 0xFFFFFFF0;
145 len = ~len + 1;
146
147 dbg("len in MEM %x, BAR %d\n", len, count);
148
149 spin_lock(&bridge->res_lock);
150 res = acpiphp_get_resource(&bridge->mem_head, len);
151 spin_unlock(&bridge->res_lock);
152
153 if (!res) {
154 err("cannot allocate requested pfmem for %02x:%02x.%d len %x\n",
155 bus, device, function, len);
156 return -1;
157 }
158
159 pci_bus_write_config_dword(pbus, devfn,
160 address[count],
161 (u32)res->base);
162
163 if (bar & PCI_BASE_ADDRESS_MEM_TYPE_64) {
164 /* takes up another dword */
165 dbg("inside mem 64 case, reg. mem, count %d\n", count);
166 count += 1;
167 pci_bus_write_config_dword(pbus, devfn,
168 address[count],
169 (u32)(res->base >> 32));
170 }
171
172 res->next = func->mem_head;
173 func->mem_head = res;
174
175 }
176 }
177 }
178
179 /* disable expansion rom */
180 pci_bus_write_config_dword(pbus, devfn, PCI_ROM_ADDRESS, 0x00000000);
181
182 /* set PCI parameters from _HPP */
183 pci_bus_write_config_byte(pbus, devfn, PCI_CACHE_LINE_SIZE,
184 bridge->hpp.cache_line_size);
185 pci_bus_write_config_byte(pbus, devfn, PCI_LATENCY_TIMER,
186 bridge->hpp.latency_timer);
187
188 pci_bus_read_config_word(pbus, devfn, PCI_COMMAND, &tmp);
189 if (bridge->hpp.enable_SERR)
190 tmp |= PCI_COMMAND_SERR;
191 if (bridge->hpp.enable_PERR)
192 tmp |= PCI_COMMAND_PARITY;
193 pci_bus_write_config_word(pbus, devfn, PCI_COMMAND, tmp);
194
195 return 0;
196}
197
198/* detect_used_resource - subtract resource under dev from bridge */
199static int detect_used_resource (struct acpiphp_bridge *bridge, struct pci_dev *dev)
200{
201 int count;
202
203 dbg("Device %s\n", pci_name(dev));
204
205 for (count = 0; count < DEVICE_COUNT_RESOURCE; count++) {
206 struct pci_resource *res;
207 struct pci_resource **head;
208 unsigned long base = dev->resource[count].start;
209 unsigned long len = dev->resource[count].end - base + 1;
210 unsigned long flags = dev->resource[count].flags;
211
212 if (!flags)
213 continue;
214
215 dbg("BAR[%d] 0x%lx - 0x%lx (0x%lx)\n", count, base,
216 base + len - 1, flags);
217
218 if (flags & IORESOURCE_IO) {
219 head = &bridge->io_head;
220 } else if (flags & IORESOURCE_PREFETCH) {
221 head = &bridge->p_mem_head;
222 } else {
223 head = &bridge->mem_head;
224 }
225
226 spin_lock(&bridge->res_lock);
227 res = acpiphp_get_resource_with_base(head, base, len);
228 spin_unlock(&bridge->res_lock);
229 if (res)
230 kfree(res);
231 }
232
233 return 0;
234}
235
236
237/**
238 * acpiphp_detect_pci_resource - detect resources under bridge
239 * @bridge: detect all resources already used under this bridge
240 *
241 * collect all resources already allocated for all devices under a bridge.
242 */
243int acpiphp_detect_pci_resource (struct acpiphp_bridge *bridge)
244{
245 struct list_head *l;
246 struct pci_dev *dev;
247
248 list_for_each (l, &bridge->pci_bus->devices) {
249 dev = pci_dev_b(l);
250 detect_used_resource(bridge, dev);
251 }
252
253 return 0;
254}
255
256
257/**
258 * acpiphp_init_slot_resource - gather resource usage information of a slot
259 * @slot: ACPI slot object to be checked, should have valid pci_dev member
260 *
261 * TBD: PCI-to-PCI bridge case
262 * use pci_dev->resource[]
263 */
264int acpiphp_init_func_resource (struct acpiphp_func *func)
265{
266 u64 base;
267 u32 bar, len;
268 u32 address[] = {
269 PCI_BASE_ADDRESS_0,
270 PCI_BASE_ADDRESS_1,
271 PCI_BASE_ADDRESS_2,
272 PCI_BASE_ADDRESS_3,
273 PCI_BASE_ADDRESS_4,
274 PCI_BASE_ADDRESS_5,
275 0
276 };
277 int count;
278 struct pci_resource *res;
279 struct pci_dev *dev;
280
281 dev = func->pci_dev;
282 dbg("Hot-pluggable device %s\n", pci_name(dev));
283
284 for (count = 0; address[count]; count++) { /* for 6 BARs */
285 pci_read_config_dword(dev, address[count], &bar);
286
287 if (!bar) /* This BAR is not implemented */
288 continue;
289
290 pci_write_config_dword(dev, address[count], 0xFFFFFFFF);
291 pci_read_config_dword(dev, address[count], &len);
292
293 if (len & PCI_BASE_ADDRESS_SPACE_IO) {
294 /* This is IO */
295 base = bar & 0xFFFFFFFC;
296 len = len & (PCI_BASE_ADDRESS_IO_MASK & 0xFFFF);
297 len = len & ~(len - 1);
298
299 dbg("BAR[%d] %08x - %08x (IO)\n", count, (u32)base, (u32)base + len - 1);
300
301 res = acpiphp_make_resource(base, len);
302 if (!res)
303 goto no_memory;
304
305 res->next = func->io_head;
306 func->io_head = res;
307
308 } else {
309 /* This is Memory */
310 base = bar & 0xFFFFFFF0;
311 if (len & PCI_BASE_ADDRESS_MEM_PREFETCH) {
312 /* pfmem */
313
314 len &= 0xFFFFFFF0;
315 len = ~len + 1;
316
317 if (len & PCI_BASE_ADDRESS_MEM_TYPE_64) { /* takes up another dword */
318 dbg("prefetch mem 64\n");
319 count += 1;
320 }
321 dbg("BAR[%d] %08x - %08x (PMEM)\n", count, (u32)base, (u32)base + len - 1);
322 res = acpiphp_make_resource(base, len);
323 if (!res)
324 goto no_memory;
325
326 res->next = func->p_mem_head;
327 func->p_mem_head = res;
328
329 } else {
330 /* regular memory */
331
332 len &= 0xFFFFFFF0;
333 len = ~len + 1;
334
335 if (len & PCI_BASE_ADDRESS_MEM_TYPE_64) {
336 /* takes up another dword */
337 dbg("mem 64\n");
338 count += 1;
339 }
340 dbg("BAR[%d] %08x - %08x (MEM)\n", count, (u32)base, (u32)base + len - 1);
341 res = acpiphp_make_resource(base, len);
342 if (!res)
343 goto no_memory;
344
345 res->next = func->mem_head;
346 func->mem_head = res;
347
348 }
349 }
350
351 pci_write_config_dword(dev, address[count], bar);
352 }
353#if 1
354 acpiphp_dump_func_resource(func);
355#endif
356
357 return 0;
358
359 no_memory:
360 err("out of memory\n");
361 acpiphp_free_resource(&func->io_head);
362 acpiphp_free_resource(&func->mem_head);
363 acpiphp_free_resource(&func->p_mem_head);
364
365 return -1;
366}
367
368
369/**
370 * acpiphp_configure_slot - allocate PCI resources
371 * @slot: slot to be configured
372 *
373 * initializes a PCI functions on a device inserted
374 * into the slot
375 *
376 */
377int acpiphp_configure_slot (struct acpiphp_slot *slot)
378{
379 struct acpiphp_func *func;
380 struct list_head *l;
381 u8 hdr;
382 u32 dvid;
383 int retval = 0;
384 int is_multi = 0;
385
386 pci_bus_read_config_byte(slot->bridge->pci_bus,
387 PCI_DEVFN(slot->device, 0),
388 PCI_HEADER_TYPE, &hdr);
389
390 if (hdr & 0x80)
391 is_multi = 1;
392
393 list_for_each (l, &slot->funcs) {
394 func = list_entry(l, struct acpiphp_func, sibling);
395 if (is_multi || func->function == 0) {
396 pci_bus_read_config_dword(slot->bridge->pci_bus,
397 PCI_DEVFN(slot->device,
398 func->function),
399 PCI_VENDOR_ID, &dvid);
400 if (dvid != 0xffffffff) {
401 retval = init_config_space(func);
402 if (retval)
403 break;
404 }
405 }
406 }
407
408 return retval;
409}
410
411/**
412 * acpiphp_configure_function - configure PCI function
413 * @func: function to be configured
414 *
415 * initializes a PCI functions on a device inserted
416 * into the slot
417 *
418 */
419int acpiphp_configure_function (struct acpiphp_func *func)
420{
421 /* all handled by the pci core now */
422 return 0;
423}
424
425/**
426 * acpiphp_unconfigure_function - unconfigure PCI function
427 * @func: function to be unconfigured
428 *
429 */
430void acpiphp_unconfigure_function (struct acpiphp_func *func)
431{
432 struct acpiphp_bridge *bridge;
433
434 /* if pci_dev is NULL, ignore it */
435 if (!func->pci_dev)
436 return;
437
438 pci_remove_bus_device(func->pci_dev);
439
440 /* free all resources */
441 bridge = func->slot->bridge;
442
443 spin_lock(&bridge->res_lock);
444 acpiphp_move_resource(&func->io_head, &bridge->io_head);
445 acpiphp_move_resource(&func->mem_head, &bridge->mem_head);
446 acpiphp_move_resource(&func->p_mem_head, &bridge->p_mem_head);
447 acpiphp_move_resource(&func->bus_head, &bridge->bus_head);
448 spin_unlock(&bridge->res_lock);
449}
diff --git a/drivers/pci/hotplug/acpiphp_res.c b/drivers/pci/hotplug/acpiphp_res.c
deleted file mode 100644
index f54b1fa7b75a..000000000000
--- a/drivers/pci/hotplug/acpiphp_res.c
+++ /dev/null
@@ -1,700 +0,0 @@
1/*
2 * ACPI PCI HotPlug Utility functions
3 *
4 * Copyright (C) 1995,2001 Compaq Computer Corporation
5 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
6 * Copyright (C) 2001 IBM Corp.
7 * Copyright (C) 2002 Hiroshi Aono (h-aono@ap.jp.nec.com)
8 * Copyright (C) 2002 Takayoshi Kochi (t-kochi@bq.jp.nec.com)
9 * Copyright (C) 2002 NEC Corporation
10 *
11 * All rights reserved.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or (at
16 * your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful, but
19 * WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
21 * NON INFRINGEMENT. See the GNU General Public License for more
22 * details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 *
28 * Send feedback to <gregkh@us.ibm.com>, <t-kochi@bq.jp.nec.com>
29 *
30 */
31
32#include <linux/init.h>
33#include <linux/module.h>
34
35#include <linux/kernel.h>
36#include <linux/types.h>
37#include <linux/proc_fs.h>
38#include <linux/sysctl.h>
39#include <linux/pci.h>
40#include <linux/smp.h>
41#include <linux/smp_lock.h>
42
43#include <linux/string.h>
44#include <linux/mm.h>
45#include <linux/errno.h>
46#include <linux/ioport.h>
47#include <linux/slab.h>
48#include <linux/interrupt.h>
49#include <linux/timer.h>
50
51#include <linux/ioctl.h>
52#include <linux/fcntl.h>
53
54#include <linux/list.h>
55
56#include "pci_hotplug.h"
57#include "acpiphp.h"
58
59#define MY_NAME "acpiphp_res"
60
61
62/*
63 * sort_by_size - sort nodes by their length, smallest first
64 */
65static int sort_by_size(struct pci_resource **head)
66{
67 struct pci_resource *current_res;
68 struct pci_resource *next_res;
69 int out_of_order = 1;
70
71 if (!(*head))
72 return 1;
73
74 if (!((*head)->next))
75 return 0;
76
77 while (out_of_order) {
78 out_of_order = 0;
79
80 /* Special case for swapping list head */
81 if (((*head)->next) &&
82 ((*head)->length > (*head)->next->length)) {
83 out_of_order++;
84 current_res = *head;
85 *head = (*head)->next;
86 current_res->next = (*head)->next;
87 (*head)->next = current_res;
88 }
89
90 current_res = *head;
91
92 while (current_res->next && current_res->next->next) {
93 if (current_res->next->length > current_res->next->next->length) {
94 out_of_order++;
95 next_res = current_res->next;
96 current_res->next = current_res->next->next;
97 current_res = current_res->next;
98 next_res->next = current_res->next;
99 current_res->next = next_res;
100 } else
101 current_res = current_res->next;
102 }
103 } /* End of out_of_order loop */
104
105 return 0;
106}
107
108#if 0
109/*
110 * sort_by_max_size - sort nodes by their length, largest first
111 */
112static int sort_by_max_size(struct pci_resource **head)
113{
114 struct pci_resource *current_res;
115 struct pci_resource *next_res;
116 int out_of_order = 1;
117
118 if (!(*head))
119 return 1;
120
121 if (!((*head)->next))
122 return 0;
123
124 while (out_of_order) {
125 out_of_order = 0;
126
127 /* Special case for swapping list head */
128 if (((*head)->next) &&
129 ((*head)->length < (*head)->next->length)) {
130 out_of_order++;
131 current_res = *head;
132 *head = (*head)->next;
133 current_res->next = (*head)->next;
134 (*head)->next = current_res;
135 }
136
137 current_res = *head;
138
139 while (current_res->next && current_res->next->next) {
140 if (current_res->next->length < current_res->next->next->length) {
141 out_of_order++;
142 next_res = current_res->next;
143 current_res->next = current_res->next->next;
144 current_res = current_res->next;
145 next_res->next = current_res->next;
146 current_res->next = next_res;
147 } else
148 current_res = current_res->next;
149 }
150 } /* End of out_of_order loop */
151
152 return 0;
153}
154#endif
155
156/**
157 * get_io_resource - get resource for I/O ports
158 *
159 * this function sorts the resource list by size and then
160 * returns the first node of "size" length that is not in the
161 * ISA aliasing window. If it finds a node larger than "size"
162 * it will split it up.
163 *
164 * size must be a power of two.
165 *
166 * difference from get_resource is handling of ISA aliasing space.
167 *
168 */
169struct pci_resource *acpiphp_get_io_resource (struct pci_resource **head, u32 size)
170{
171 struct pci_resource *prevnode;
172 struct pci_resource *node;
173 struct pci_resource *split_node;
174 u64 temp_qword;
175
176 if (!(*head))
177 return NULL;
178
179 if (acpiphp_resource_sort_and_combine(head))
180 return NULL;
181
182 if (sort_by_size(head))
183 return NULL;
184
185 for (node = *head; node; node = node->next) {
186 if (node->length < size)
187 continue;
188
189 if (node->base & (size - 1)) {
190 /* this one isn't base aligned properly
191 so we'll make a new entry and split it up */
192 temp_qword = (node->base | (size-1)) + 1;
193
194 /* Short circuit if adjusted size is too small */
195 if ((node->length - (temp_qword - node->base)) < size)
196 continue;
197
198 split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
199
200 if (!split_node)
201 return NULL;
202
203 node->base = temp_qword;
204 node->length -= split_node->length;
205
206 /* Put it in the list */
207 split_node->next = node->next;
208 node->next = split_node;
209 } /* End of non-aligned base */
210
211 /* Don't need to check if too small since we already did */
212 if (node->length > size) {
213 /* this one is longer than we need
214 so we'll make a new entry and split it up */
215 split_node = acpiphp_make_resource(node->base + size, node->length - size);
216
217 if (!split_node)
218 return NULL;
219
220 node->length = size;
221
222 /* Put it in the list */
223 split_node->next = node->next;
224 node->next = split_node;
225 } /* End of too big on top end */
226
227 /* For IO make sure it's not in the ISA aliasing space */
228 if ((node->base & 0x300L) && !(node->base & 0xfffff000))
229 continue;
230
231 /* If we got here, then it is the right size
232 Now take it out of the list */
233 if (*head == node) {
234 *head = node->next;
235 } else {
236 prevnode = *head;
237 while (prevnode->next != node)
238 prevnode = prevnode->next;
239
240 prevnode->next = node->next;
241 }
242 node->next = NULL;
243 /* Stop looping */
244 break;
245 }
246
247 return node;
248}
249
250
251#if 0
252/**
253 * get_max_resource - get the largest resource
254 *
255 * Gets the largest node that is at least "size" big from the
256 * list pointed to by head. It aligns the node on top and bottom
257 * to "size" alignment before returning it.
258 */
259static struct pci_resource *acpiphp_get_max_resource (struct pci_resource **head, u32 size)
260{
261 struct pci_resource *max;
262 struct pci_resource *temp;
263 struct pci_resource *split_node;
264 u64 temp_qword;
265
266 if (!(*head))
267 return NULL;
268
269 if (acpiphp_resource_sort_and_combine(head))
270 return NULL;
271
272 if (sort_by_max_size(head))
273 return NULL;
274
275 for (max = *head;max; max = max->next) {
276
277 /* If not big enough we could probably just bail,
278 instead we'll continue to the next. */
279 if (max->length < size)
280 continue;
281
282 if (max->base & (size - 1)) {
283 /* this one isn't base aligned properly
284 so we'll make a new entry and split it up */
285 temp_qword = (max->base | (size-1)) + 1;
286
287 /* Short circuit if adjusted size is too small */
288 if ((max->length - (temp_qword - max->base)) < size)
289 continue;
290
291 split_node = acpiphp_make_resource(max->base, temp_qword - max->base);
292
293 if (!split_node)
294 return NULL;
295
296 max->base = temp_qword;
297 max->length -= split_node->length;
298
299 /* Put it next in the list */
300 split_node->next = max->next;
301 max->next = split_node;
302 }
303
304 if ((max->base + max->length) & (size - 1)) {
305 /* this one isn't end aligned properly at the top
306 so we'll make a new entry and split it up */
307 temp_qword = ((max->base + max->length) & ~(size - 1));
308
309 split_node = acpiphp_make_resource(temp_qword,
310 max->length + max->base - temp_qword);
311
312 if (!split_node)
313 return NULL;
314
315 max->length -= split_node->length;
316
317 /* Put it in the list */
318 split_node->next = max->next;
319 max->next = split_node;
320 }
321
322 /* Make sure it didn't shrink too much when we aligned it */
323 if (max->length < size)
324 continue;
325
326 /* Now take it out of the list */
327 temp = (struct pci_resource*) *head;
328 if (temp == max) {
329 *head = max->next;
330 } else {
331 while (temp && temp->next != max) {
332 temp = temp->next;
333 }
334
335 temp->next = max->next;
336 }
337
338 max->next = NULL;
339 return max;
340 }
341
342 /* If we get here, we couldn't find one */
343 return NULL;
344}
345#endif
346
347/**
348 * get_resource - get resource (mem, pfmem)
349 *
350 * this function sorts the resource list by size and then
351 * returns the first node of "size" length. If it finds a node
352 * larger than "size" it will split it up.
353 *
354 * size must be a power of two.
355 *
356 */
357struct pci_resource *acpiphp_get_resource (struct pci_resource **head, u32 size)
358{
359 struct pci_resource *prevnode;
360 struct pci_resource *node;
361 struct pci_resource *split_node;
362 u64 temp_qword;
363
364 if (!(*head))
365 return NULL;
366
367 if (acpiphp_resource_sort_and_combine(head))
368 return NULL;
369
370 if (sort_by_size(head))
371 return NULL;
372
373 for (node = *head; node; node = node->next) {
374 dbg("%s: req_size =%x node=%p, base=%x, length=%x\n",
375 __FUNCTION__, size, node, (u32)node->base, node->length);
376 if (node->length < size)
377 continue;
378
379 if (node->base & (size - 1)) {
380 dbg("%s: not aligned\n", __FUNCTION__);
381 /* this one isn't base aligned properly
382 so we'll make a new entry and split it up */
383 temp_qword = (node->base | (size-1)) + 1;
384
385 /* Short circuit if adjusted size is too small */
386 if ((node->length - (temp_qword - node->base)) < size)
387 continue;
388
389 split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
390
391 if (!split_node)
392 return NULL;
393
394 node->base = temp_qword;
395 node->length -= split_node->length;
396
397 /* Put it in the list */
398 split_node->next = node->next;
399 node->next = split_node;
400 } /* End of non-aligned base */
401
402 /* Don't need to check if too small since we already did */
403 if (node->length > size) {
404 dbg("%s: too big\n", __FUNCTION__);
405 /* this one is longer than we need
406 so we'll make a new entry and split it up */
407 split_node = acpiphp_make_resource(node->base + size, node->length - size);
408
409 if (!split_node)
410 return NULL;
411
412 node->length = size;
413
414 /* Put it in the list */
415 split_node->next = node->next;
416 node->next = split_node;
417 } /* End of too big on top end */
418
419 dbg("%s: got one!!!\n", __FUNCTION__);
420 /* If we got here, then it is the right size
421 Now take it out of the list */
422 if (*head == node) {
423 *head = node->next;
424 } else {
425 prevnode = *head;
426 while (prevnode->next != node)
427 prevnode = prevnode->next;
428
429 prevnode->next = node->next;
430 }
431 node->next = NULL;
432 /* Stop looping */
433 break;
434 }
435 return node;
436}
437
438/**
439 * get_resource_with_base - get resource with specific base address
440 *
441 * this function
442 * returns the first node of "size" length located at specified base address.
443 * If it finds a node larger than "size" it will split it up.
444 *
445 * size must be a power of two.
446 *
447 */
448struct pci_resource *acpiphp_get_resource_with_base (struct pci_resource **head, u64 base, u32 size)
449{
450 struct pci_resource *prevnode;
451 struct pci_resource *node;
452 struct pci_resource *split_node;
453 u64 temp_qword;
454
455 if (!(*head))
456 return NULL;
457
458 if (acpiphp_resource_sort_and_combine(head))
459 return NULL;
460
461 for (node = *head; node; node = node->next) {
462 dbg(": 1st req_base=%x req_size =%x node=%p, base=%x, length=%x\n",
463 (u32)base, size, node, (u32)node->base, node->length);
464 if (node->base > base)
465 continue;
466
467 if ((node->base + node->length) < (base + size))
468 continue;
469
470 if (node->base < base) {
471 dbg(": split 1\n");
472 /* this one isn't base aligned properly
473 so we'll make a new entry and split it up */
474 temp_qword = base;
475
476 /* Short circuit if adjusted size is too small */
477 if ((node->length - (temp_qword - node->base)) < size)
478 continue;
479
480 split_node = acpiphp_make_resource(node->base, temp_qword - node->base);
481
482 if (!split_node)
483 return NULL;
484
485 node->base = temp_qword;
486 node->length -= split_node->length;
487
488 /* Put it in the list */
489 split_node->next = node->next;
490 node->next = split_node;
491 }
492
493 dbg(": 2nd req_base=%x req_size =%x node=%p, base=%x, length=%x\n",
494 (u32)base, size, node, (u32)node->base, node->length);
495
496 /* Don't need to check if too small since we already did */
497 if (node->length > size) {
498 dbg(": split 2\n");
499 /* this one is longer than we need
500 so we'll make a new entry and split it up */
501 split_node = acpiphp_make_resource(node->base + size, node->length - size);
502
503 if (!split_node)
504 return NULL;
505
506 node->length = size;
507
508 /* Put it in the list */
509 split_node->next = node->next;
510 node->next = split_node;
511 } /* End of too big on top end */
512
513 dbg(": got one!!!\n");
514 /* If we got here, then it is the right size
515 Now take it out of the list */
516 if (*head == node) {
517 *head = node->next;
518 } else {
519 prevnode = *head;
520 while (prevnode->next != node)
521 prevnode = prevnode->next;
522
523 prevnode->next = node->next;
524 }
525 node->next = NULL;
526 /* Stop looping */
527 break;
528 }
529 return node;
530}
531
532
533/**
534 * acpiphp_resource_sort_and_combine
535 *
536 * Sorts all of the nodes in the list in ascending order by
537 * their base addresses. Also does garbage collection by
538 * combining adjacent nodes.
539 *
540 * returns 0 if success
541 */
542int acpiphp_resource_sort_and_combine (struct pci_resource **head)
543{
544 struct pci_resource *node1;
545 struct pci_resource *node2;
546 int out_of_order = 1;
547
548 if (!(*head))
549 return 1;
550
551 dbg("*head->next = %p\n",(*head)->next);
552
553 if (!(*head)->next)
554 return 0; /* only one item on the list, already sorted! */
555
556 dbg("*head->base = 0x%x\n",(u32)(*head)->base);
557 dbg("*head->next->base = 0x%x\n", (u32)(*head)->next->base);
558 while (out_of_order) {
559 out_of_order = 0;
560
561 /* Special case for swapping list head */
562 if (((*head)->next) &&
563 ((*head)->base > (*head)->next->base)) {
564 node1 = *head;
565 (*head) = (*head)->next;
566 node1->next = (*head)->next;
567 (*head)->next = node1;
568 out_of_order++;
569 }
570
571 node1 = (*head);
572
573 while (node1->next && node1->next->next) {
574 if (node1->next->base > node1->next->next->base) {
575 out_of_order++;
576 node2 = node1->next;
577 node1->next = node1->next->next;
578 node1 = node1->next;
579 node2->next = node1->next;
580 node1->next = node2;
581 } else
582 node1 = node1->next;
583 }
584 } /* End of out_of_order loop */
585
586 node1 = *head;
587
588 while (node1 && node1->next) {
589 if ((node1->base + node1->length) == node1->next->base) {
590 /* Combine */
591 dbg("8..\n");
592 node1->length += node1->next->length;
593 node2 = node1->next;
594 node1->next = node1->next->next;
595 kfree(node2);
596 } else
597 node1 = node1->next;
598 }
599
600 return 0;
601}
602
603
604/**
605 * acpiphp_make_resource - make resource structure
606 * @base: base address of a resource
607 * @length: length of a resource
608 */
609struct pci_resource *acpiphp_make_resource (u64 base, u32 length)
610{
611 struct pci_resource *res;
612
613 res = kmalloc(sizeof(struct pci_resource), GFP_KERNEL);
614 if (res) {
615 memset(res, 0, sizeof(struct pci_resource));
616 res->base = base;
617 res->length = length;
618 }
619
620 return res;
621}
622
623
624/**
625 * acpiphp_move_resource - move linked resources from one to another
626 * @from: head of linked resource list
627 * @to: head of linked resource list
628 */
629void acpiphp_move_resource (struct pci_resource **from, struct pci_resource **to)
630{
631 struct pci_resource *tmp;
632
633 while (*from) {
634 tmp = (*from)->next;
635 (*from)->next = *to;
636 *to = *from;
637 *from = tmp;
638 }
639
640 /* *from = NULL is guaranteed */
641}
642
643
644/**
645 * acpiphp_free_resource - free all linked resources
646 * @res: head of linked resource list
647 */
648void acpiphp_free_resource (struct pci_resource **res)
649{
650 struct pci_resource *tmp;
651
652 while (*res) {
653 tmp = (*res)->next;
654 kfree(*res);
655 *res = tmp;
656 }
657
658 /* *res = NULL is guaranteed */
659}
660
661
662/* debug support functions; will go away sometime :) */
663static void dump_resource(struct pci_resource *head)
664{
665 struct pci_resource *p;
666 int cnt;
667
668 p = head;
669 cnt = 0;
670
671 while (p) {
672 dbg("[%02d] %08x - %08x\n",
673 cnt++, (u32)p->base, (u32)p->base + p->length - 1);
674 p = p->next;
675 }
676}
677
678void acpiphp_dump_resource(struct acpiphp_bridge *bridge)
679{
680 dbg("I/O resource:\n");
681 dump_resource(bridge->io_head);
682 dbg("MEM resource:\n");
683 dump_resource(bridge->mem_head);
684 dbg("PMEM resource:\n");
685 dump_resource(bridge->p_mem_head);
686 dbg("BUS resource:\n");
687 dump_resource(bridge->bus_head);
688}
689
690void acpiphp_dump_func_resource(struct acpiphp_func *func)
691{
692 dbg("I/O resource:\n");
693 dump_resource(func->io_head);
694 dbg("MEM resource:\n");
695 dump_resource(func->mem_head);
696 dbg("PMEM resource:\n");
697 dump_resource(func->p_mem_head);
698 dbg("BUS resource:\n");
699 dump_resource(func->bus_head);
700}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-24 08:14:00 -0500