]>
Commit | Line | Data |
---|---|---|
8ea6091f JK |
1 | /* |
2 | * This file is subject to the terms and conditions of the GNU General Public | |
3 | * License. See the file "COPYING" in the main directory of this archive | |
4 | * for more details. | |
5 | * | |
6 | * Copyright (C) 2006 Silicon Graphics, Inc. All rights reserved. | |
7 | */ | |
8 | ||
9 | #include <linux/bootmem.h> | |
10 | #include <asm/sn/types.h> | |
11 | #include <asm/sn/addrs.h> | |
12 | #include <asm/sn/sn_feature_sets.h> | |
13 | #include <asm/sn/geo.h> | |
14 | #include <asm/sn/io.h> | |
15 | #include <asm/sn/l1.h> | |
16 | #include <asm/sn/module.h> | |
17 | #include <asm/sn/pcibr_provider.h> | |
18 | #include <asm/sn/pcibus_provider_defs.h> | |
19 | #include <asm/sn/pcidev.h> | |
20 | #include <asm/sn/simulator.h> | |
21 | #include <asm/sn/sn_sal.h> | |
22 | #include <asm/sn/tioca_provider.h> | |
23 | #include <asm/sn/tioce_provider.h> | |
24 | #include "xtalk/hubdev.h" | |
25 | #include "xtalk/xwidgetdev.h" | |
26 | #include <linux/acpi.h> | |
27 | #include <asm/sn/sn2/sn_hwperf.h> | |
647fb47d | 28 | #include <asm/sn/acpi.h> |
6f09a925 | 29 | #include "acpi/acglobal.h" |
8ea6091f JK |
30 | |
31 | extern void sn_init_cpei_timer(void); | |
32 | extern void register_sn_procfs(void); | |
8ea6091f JK |
33 | extern void sn_io_acpi_init(void); |
34 | extern void sn_io_init(void); | |
35 | ||
647fb47d | 36 | |
8ea6091f JK |
37 | static struct list_head sn_sysdata_list; |
38 | ||
39 | /* sysdata list struct */ | |
40 | struct sysdata_el { | |
41 | struct list_head entry; | |
42 | void *sysdata; | |
43 | }; | |
44 | ||
45 | int sn_ioif_inited; /* SN I/O infrastructure initialized? */ | |
46 | ||
6f09a925 JK |
47 | int sn_acpi_rev; /* SN ACPI revision */ |
48 | EXPORT_SYMBOL_GPL(sn_acpi_rev); | |
8ea6091f | 49 | |
6f09a925 | 50 | struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */ |
ad71860a | 51 | |
8ea6091f JK |
52 | /* |
53 | * Hooks and struct for unsupported pci providers | |
54 | */ | |
55 | ||
56 | static dma_addr_t | |
57 | sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type) | |
58 | { | |
59 | return 0; | |
60 | } | |
61 | ||
62 | static void | |
63 | sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction) | |
64 | { | |
65 | return; | |
66 | } | |
67 | ||
68 | static void * | |
69 | sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller) | |
70 | { | |
71 | return NULL; | |
72 | } | |
73 | ||
74 | static struct sn_pcibus_provider sn_pci_default_provider = { | |
75 | .dma_map = sn_default_pci_map, | |
76 | .dma_map_consistent = sn_default_pci_map, | |
77 | .dma_unmap = sn_default_pci_unmap, | |
78 | .bus_fixup = sn_default_pci_bus_fixup, | |
79 | }; | |
80 | ||
81 | /* | |
82 | * Retrieve the DMA Flush List given nasid, widget, and device. | |
83 | * This list is needed to implement the WAR - Flush DMA data on PIO Reads. | |
84 | */ | |
85 | static inline u64 | |
86 | sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num, | |
87 | u64 address) | |
88 | { | |
89 | struct ia64_sal_retval ret_stuff; | |
90 | ret_stuff.status = 0; | |
91 | ret_stuff.v0 = 0; | |
92 | ||
93 | SAL_CALL_NOLOCK(ret_stuff, | |
94 | (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST, | |
95 | (u64) nasid, (u64) widget_num, | |
96 | (u64) device_num, (u64) address, 0, 0, 0); | |
97 | return ret_stuff.status; | |
98 | } | |
99 | ||
8ea6091f JK |
100 | /* |
101 | * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified | |
102 | * device. | |
103 | */ | |
104 | inline struct pcidev_info * | |
105 | sn_pcidev_info_get(struct pci_dev *dev) | |
106 | { | |
107 | struct pcidev_info *pcidev; | |
108 | ||
109 | list_for_each_entry(pcidev, | |
110 | &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) { | |
111 | if (pcidev->pdi_linux_pcidev == dev) | |
112 | return pcidev; | |
113 | } | |
114 | return NULL; | |
115 | } | |
116 | ||
117 | /* Older PROM flush WAR | |
118 | * | |
119 | * 01/16/06 -- This war will be in place until a new official PROM is released. | |
120 | * Additionally note that the struct sn_flush_device_war also has to be | |
121 | * removed from arch/ia64/sn/include/xtalk/hubdev.h | |
122 | */ | |
123 | static u8 war_implemented = 0; | |
124 | ||
125 | static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device, | |
126 | struct sn_flush_device_common *common) | |
127 | { | |
128 | struct sn_flush_device_war *war_list; | |
129 | struct sn_flush_device_war *dev_entry; | |
130 | struct ia64_sal_retval isrv = {0,0,0,0}; | |
131 | ||
132 | if (!war_implemented) { | |
133 | printk(KERN_WARNING "PROM version < 4.50 -- implementing old " | |
134 | "PROM flush WAR\n"); | |
135 | war_implemented = 1; | |
136 | } | |
137 | ||
138 | war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL); | |
139 | if (!war_list) | |
140 | BUG(); | |
141 | ||
142 | SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST, | |
143 | nasid, widget, __pa(war_list), 0, 0, 0 ,0); | |
144 | if (isrv.status) | |
145 | panic("sn_device_fixup_war failed: %s\n", | |
146 | ia64_sal_strerror(isrv.status)); | |
147 | ||
148 | dev_entry = war_list + device; | |
149 | memcpy(common,dev_entry, sizeof(*common)); | |
150 | kfree(war_list); | |
151 | ||
152 | return isrv.status; | |
153 | } | |
154 | ||
155 | /* | |
156 | * sn_common_hubdev_init() - This routine is called to initialize the HUB data | |
157 | * structure for each node in the system. | |
158 | */ | |
159 | void __init | |
160 | sn_common_hubdev_init(struct hubdev_info *hubdev) | |
161 | { | |
162 | ||
163 | struct sn_flush_device_kernel *sn_flush_device_kernel; | |
164 | struct sn_flush_device_kernel *dev_entry; | |
165 | s64 status; | |
166 | int widget, device, size; | |
167 | ||
168 | /* Attach the error interrupt handlers */ | |
169 | if (hubdev->hdi_nasid & 1) /* If TIO */ | |
170 | ice_error_init(hubdev); | |
171 | else | |
172 | hub_error_init(hubdev); | |
173 | ||
174 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) | |
175 | hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev; | |
176 | ||
177 | if (!hubdev->hdi_flush_nasid_list.widget_p) | |
178 | return; | |
179 | ||
180 | size = (HUB_WIDGET_ID_MAX + 1) * | |
181 | sizeof(struct sn_flush_device_kernel *); | |
182 | hubdev->hdi_flush_nasid_list.widget_p = | |
183 | kzalloc(size, GFP_KERNEL); | |
184 | if (!hubdev->hdi_flush_nasid_list.widget_p) | |
185 | BUG(); | |
186 | ||
187 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) { | |
188 | size = DEV_PER_WIDGET * | |
189 | sizeof(struct sn_flush_device_kernel); | |
190 | sn_flush_device_kernel = kzalloc(size, GFP_KERNEL); | |
191 | if (!sn_flush_device_kernel) | |
192 | BUG(); | |
193 | ||
194 | dev_entry = sn_flush_device_kernel; | |
195 | for (device = 0; device < DEV_PER_WIDGET; | |
196 | device++, dev_entry++) { | |
197 | size = sizeof(struct sn_flush_device_common); | |
198 | dev_entry->common = kzalloc(size, GFP_KERNEL); | |
199 | if (!dev_entry->common) | |
200 | BUG(); | |
201 | if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST)) | |
202 | status = sal_get_device_dmaflush_list( | |
203 | hubdev->hdi_nasid, widget, device, | |
204 | (u64)(dev_entry->common)); | |
205 | else | |
206 | status = sn_device_fixup_war(hubdev->hdi_nasid, | |
207 | widget, device, | |
208 | dev_entry->common); | |
209 | if (status != SALRET_OK) | |
210 | panic("SAL call failed: %s\n", | |
211 | ia64_sal_strerror(status)); | |
212 | ||
213 | spin_lock_init(&dev_entry->sfdl_flush_lock); | |
214 | } | |
215 | ||
216 | if (sn_flush_device_kernel) | |
217 | hubdev->hdi_flush_nasid_list.widget_p[widget] = | |
218 | sn_flush_device_kernel; | |
219 | } | |
220 | } | |
221 | ||
222 | void sn_pci_unfixup_slot(struct pci_dev *dev) | |
223 | { | |
224 | struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev; | |
225 | ||
226 | sn_irq_unfixup(dev); | |
227 | pci_dev_put(host_pci_dev); | |
228 | pci_dev_put(dev); | |
229 | } | |
230 | ||
231 | /* | |
6f09a925 | 232 | * sn_pci_fixup_slot() |
8ea6091f | 233 | */ |
6f09a925 JK |
234 | void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *pcidev_info, |
235 | struct sn_irq_info *sn_irq_info) | |
8ea6091f JK |
236 | { |
237 | int segment = pci_domain_nr(dev->bus); | |
8ea6091f | 238 | struct pcibus_bussoft *bs; |
6f09a925 JK |
239 | struct pci_bus *host_pci_bus; |
240 | struct pci_dev *host_pci_dev; | |
241 | unsigned int bus_no, devfn; | |
8ea6091f JK |
242 | |
243 | pci_dev_get(dev); /* for the sysdata pointer */ | |
8ea6091f JK |
244 | |
245 | /* Add pcidev_info to list in pci_controller.platform_data */ | |
246 | list_add_tail(&pcidev_info->pdi_list, | |
247 | &(SN_PLATFORM_DATA(dev->bus)->pcidev_info)); | |
8ea6091f JK |
248 | /* |
249 | * Using the PROMs values for the PCI host bus, get the Linux | |
6f09a925 | 250 | * PCI host_pci_dev struct and set up host bus linkages |
8ea6091f JK |
251 | */ |
252 | ||
253 | bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff; | |
254 | devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff; | |
255 | host_pci_bus = pci_find_bus(segment, bus_no); | |
256 | host_pci_dev = pci_get_slot(host_pci_bus, devfn); | |
257 | ||
258 | pcidev_info->host_pci_dev = host_pci_dev; | |
259 | pcidev_info->pdi_linux_pcidev = dev; | |
260 | pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev); | |
261 | bs = SN_PCIBUS_BUSSOFT(dev->bus); | |
262 | pcidev_info->pdi_pcibus_info = bs; | |
263 | ||
264 | if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) { | |
265 | SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type]; | |
266 | } else { | |
267 | SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider; | |
268 | } | |
269 | ||
270 | /* Only set up IRQ stuff if this device has a host bus context */ | |
271 | if (bs && sn_irq_info->irq_irq) { | |
272 | pcidev_info->pdi_sn_irq_info = sn_irq_info; | |
273 | dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq; | |
274 | sn_irq_fixup(dev, sn_irq_info); | |
275 | } else { | |
276 | pcidev_info->pdi_sn_irq_info = NULL; | |
277 | kfree(sn_irq_info); | |
278 | } | |
279 | } | |
280 | ||
281 | /* | |
282 | * sn_common_bus_fixup - Perform platform specific bus fixup. | |
283 | * Execute the ASIC specific fixup routine | |
284 | * for this bus. | |
285 | */ | |
286 | void | |
287 | sn_common_bus_fixup(struct pci_bus *bus, | |
288 | struct pcibus_bussoft *prom_bussoft_ptr) | |
289 | { | |
290 | int cnode; | |
291 | struct pci_controller *controller; | |
292 | struct hubdev_info *hubdev_info; | |
293 | int nasid; | |
294 | void *provider_soft; | |
295 | struct sn_pcibus_provider *provider; | |
296 | struct sn_platform_data *sn_platform_data; | |
297 | ||
298 | controller = PCI_CONTROLLER(bus); | |
299 | /* | |
300 | * Per-provider fixup. Copies the bus soft structure from prom | |
301 | * to local area and links SN_PCIBUS_BUSSOFT(). | |
302 | */ | |
303 | ||
304 | if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) { | |
305 | printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d", | |
306 | prom_bussoft_ptr->bs_asic_type); | |
307 | return; | |
308 | } | |
309 | ||
310 | if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) | |
311 | return; /* no further fixup necessary */ | |
312 | ||
313 | provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type]; | |
314 | if (provider == NULL) | |
315 | panic("sn_common_bus_fixup: No provider registered for this asic type, %d", | |
316 | prom_bussoft_ptr->bs_asic_type); | |
317 | ||
318 | if (provider->bus_fixup) | |
319 | provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, | |
320 | controller); | |
321 | else | |
322 | provider_soft = NULL; | |
323 | ||
324 | /* | |
325 | * Generic bus fixup goes here. Don't reference prom_bussoft_ptr | |
326 | * after this point. | |
327 | */ | |
328 | controller->platform_data = kzalloc(sizeof(struct sn_platform_data), | |
329 | GFP_KERNEL); | |
330 | if (controller->platform_data == NULL) | |
331 | BUG(); | |
332 | sn_platform_data = | |
333 | (struct sn_platform_data *) controller->platform_data; | |
334 | sn_platform_data->provider_soft = provider_soft; | |
335 | INIT_LIST_HEAD(&((struct sn_platform_data *) | |
336 | controller->platform_data)->pcidev_info); | |
337 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base); | |
338 | cnode = nasid_to_cnodeid(nasid); | |
339 | hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
340 | SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info = | |
341 | &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]); | |
342 | ||
343 | /* | |
344 | * If the node information we obtained during the fixup phase is | |
345 | * invalid then set controller->node to -1 (undetermined) | |
346 | */ | |
347 | if (controller->node >= num_online_nodes()) { | |
348 | struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus); | |
349 | ||
350 | printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u" | |
351 | "L_IO=%lx L_MEM=%lx BASE=%lx\n", | |
352 | b->bs_asic_type, b->bs_xid, b->bs_persist_busnum, | |
353 | b->bs_legacy_io, b->bs_legacy_mem, b->bs_base); | |
354 | printk(KERN_WARNING "on node %d but only %d nodes online." | |
355 | "Association set to undetermined.\n", | |
356 | controller->node, num_online_nodes()); | |
357 | controller->node = -1; | |
358 | } | |
359 | } | |
360 | ||
361 | void sn_bus_store_sysdata(struct pci_dev *dev) | |
362 | { | |
363 | struct sysdata_el *element; | |
364 | ||
365 | element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); | |
366 | if (!element) { | |
34ef30ca | 367 | dev_dbg(&dev->dev, "%s: out of memory!\n", __FUNCTION__); |
8ea6091f JK |
368 | return; |
369 | } | |
370 | element->sysdata = SN_PCIDEV_INFO(dev); | |
371 | list_add(&element->entry, &sn_sysdata_list); | |
372 | } | |
373 | ||
374 | void sn_bus_free_sysdata(void) | |
375 | { | |
376 | struct sysdata_el *element; | |
377 | struct list_head *list, *safe; | |
378 | ||
379 | list_for_each_safe(list, safe, &sn_sysdata_list) { | |
380 | element = list_entry(list, struct sysdata_el, entry); | |
381 | list_del(&element->entry); | |
382 | list_del(&(((struct pcidev_info *) | |
383 | (element->sysdata))->pdi_list)); | |
384 | kfree(element->sysdata); | |
385 | kfree(element); | |
386 | } | |
387 | return; | |
388 | } | |
389 | ||
390 | /* | |
391 | * hubdev_init_node() - Creates the HUB data structure and link them to it's | |
392 | * own NODE specific data area. | |
393 | */ | |
056e6d89 | 394 | void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node) |
8ea6091f JK |
395 | { |
396 | struct hubdev_info *hubdev_info; | |
397 | int size; | |
398 | pg_data_t *pg; | |
399 | ||
400 | size = sizeof(struct hubdev_info); | |
401 | ||
402 | if (node >= num_online_nodes()) /* Headless/memless IO nodes */ | |
403 | pg = NODE_DATA(0); | |
404 | else | |
405 | pg = NODE_DATA(node); | |
406 | ||
407 | hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size); | |
408 | ||
409 | npda->pdinfo = (void *)hubdev_info; | |
410 | } | |
411 | ||
412 | geoid_t | |
413 | cnodeid_get_geoid(cnodeid_t cnode) | |
414 | { | |
415 | struct hubdev_info *hubdev; | |
416 | ||
417 | hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
418 | return hubdev->hdi_geoid; | |
419 | } | |
420 | ||
421 | void sn_generate_path(struct pci_bus *pci_bus, char *address) | |
422 | { | |
423 | nasid_t nasid; | |
424 | cnodeid_t cnode; | |
425 | geoid_t geoid; | |
426 | moduleid_t moduleid; | |
427 | u16 bricktype; | |
428 | ||
429 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base); | |
430 | cnode = nasid_to_cnodeid(nasid); | |
431 | geoid = cnodeid_get_geoid(cnode); | |
432 | moduleid = geo_module(geoid); | |
433 | ||
434 | sprintf(address, "module_%c%c%c%c%.2d", | |
435 | '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)), | |
436 | '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)), | |
437 | '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)), | |
438 | MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid)); | |
439 | ||
440 | /* Tollhouse requires slot id to be displayed */ | |
441 | bricktype = MODULE_GET_BTYPE(moduleid); | |
442 | if ((bricktype == L1_BRICKTYPE_191010) || | |
443 | (bricktype == L1_BRICKTYPE_1932)) | |
444 | sprintf(address, "%s^%d", address, geo_slot(geoid)); | |
445 | } | |
446 | ||
8ea6091f JK |
447 | void __devinit |
448 | sn_pci_fixup_bus(struct pci_bus *bus) | |
449 | { | |
450 | ||
647fb47d | 451 | if (SN_ACPI_BASE_SUPPORT()) |
8ea6091f JK |
452 | sn_acpi_bus_fixup(bus); |
453 | else | |
454 | sn_bus_fixup(bus); | |
455 | } | |
456 | ||
457 | /* | |
458 | * sn_io_early_init - Perform early IO (and some non-IO) initialization. | |
459 | * In particular, setup the sn_pci_provider[] array. | |
460 | * This needs to be done prior to any bus scanning | |
461 | * (acpi_scan_init()) in the ACPI case, as the SN | |
462 | * bus fixup code will reference the array. | |
463 | */ | |
464 | static int __init | |
465 | sn_io_early_init(void) | |
466 | { | |
467 | int i; | |
468 | ||
469 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
470 | return 0; | |
471 | ||
6f09a925 JK |
472 | /* we set the acpi revision to that of the DSDT table OEM rev. */ |
473 | { | |
474 | struct acpi_table_header *header = NULL; | |
475 | ||
476 | acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header); | |
477 | BUG_ON(header == NULL); | |
478 | sn_acpi_rev = header->oem_revision; | |
479 | } | |
480 | ||
8ea6091f | 481 | /* |
72fdbdce | 482 | * prime sn_pci_provider[]. Individual provider init routines will |
8ea6091f JK |
483 | * override their respective default entries. |
484 | */ | |
485 | ||
486 | for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++) | |
487 | sn_pci_provider[i] = &sn_pci_default_provider; | |
488 | ||
489 | pcibr_init_provider(); | |
490 | tioca_init_provider(); | |
491 | tioce_init_provider(); | |
492 | ||
493 | /* | |
494 | * This is needed to avoid bounce limit checks in the blk layer | |
495 | */ | |
496 | ia64_max_iommu_merge_mask = ~PAGE_MASK; | |
497 | ||
498 | sn_irq_lh_init(); | |
499 | INIT_LIST_HEAD(&sn_sysdata_list); | |
500 | sn_init_cpei_timer(); | |
501 | ||
502 | #ifdef CONFIG_PROC_FS | |
503 | register_sn_procfs(); | |
504 | #endif | |
505 | ||
647fb47d LB |
506 | { |
507 | struct acpi_table_header *header; | |
508 | (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header); | |
509 | printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n", | |
510 | header->oem_revision); | |
511 | } | |
512 | if (SN_ACPI_BASE_SUPPORT()) | |
8ea6091f JK |
513 | sn_io_acpi_init(); |
514 | else | |
515 | sn_io_init(); | |
516 | return 0; | |
517 | } | |
518 | ||
519 | arch_initcall(sn_io_early_init); | |
520 | ||
521 | /* | |
522 | * sn_io_late_init() - Perform any final platform specific IO initialization. | |
523 | */ | |
524 | ||
525 | int __init | |
526 | sn_io_late_init(void) | |
527 | { | |
528 | struct pci_bus *bus; | |
529 | struct pcibus_bussoft *bussoft; | |
530 | cnodeid_t cnode; | |
531 | nasid_t nasid; | |
532 | cnodeid_t near_cnode; | |
533 | ||
534 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
535 | return 0; | |
536 | ||
537 | /* | |
538 | * Setup closest node in pci_controller->node for | |
539 | * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using | |
540 | * info from the PROM). | |
541 | */ | |
542 | bus = NULL; | |
543 | while ((bus = pci_find_next_bus(bus)) != NULL) { | |
544 | bussoft = SN_PCIBUS_BUSSOFT(bus); | |
545 | nasid = NASID_GET(bussoft->bs_base); | |
546 | cnode = nasid_to_cnodeid(nasid); | |
547 | if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) || | |
afc2cf35 MH |
548 | (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE) || |
549 | (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC)) { | |
550 | /* PCI Bridge: find nearest node with CPUs */ | |
8ea6091f JK |
551 | int e = sn_hwperf_get_nearest_node(cnode, NULL, |
552 | &near_cnode); | |
553 | if (e < 0) { | |
554 | near_cnode = (cnodeid_t)-1; /* use any node */ | |
afc2cf35 MH |
555 | printk(KERN_WARNING "sn_io_late_init: failed " |
556 | "to find near node with CPUs for " | |
8ea6091f JK |
557 | "node %d, err=%d\n", cnode, e); |
558 | } | |
559 | PCI_CONTROLLER(bus)->node = near_cnode; | |
8ea6091f JK |
560 | } |
561 | } | |
562 | ||
563 | sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */ | |
564 | ||
565 | return 0; | |
566 | } | |
567 | ||
568 | fs_initcall(sn_io_late_init); | |
569 | ||
8ea6091f JK |
570 | EXPORT_SYMBOL(sn_pci_unfixup_slot); |
571 | EXPORT_SYMBOL(sn_bus_store_sysdata); | |
572 | EXPORT_SYMBOL(sn_bus_free_sysdata); | |
573 | EXPORT_SYMBOL(sn_generate_path); | |
574 |