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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> | |
5a0e3ad6 | 10 | #include <linux/slab.h> |
8ea6091f JK |
11 | #include <asm/sn/types.h> |
12 | #include <asm/sn/addrs.h> | |
13 | #include <asm/sn/sn_feature_sets.h> | |
14 | #include <asm/sn/geo.h> | |
15 | #include <asm/sn/io.h> | |
16 | #include <asm/sn/l1.h> | |
17 | #include <asm/sn/module.h> | |
18 | #include <asm/sn/pcibr_provider.h> | |
19 | #include <asm/sn/pcibus_provider_defs.h> | |
20 | #include <asm/sn/pcidev.h> | |
21 | #include <asm/sn/simulator.h> | |
22 | #include <asm/sn/sn_sal.h> | |
23 | #include <asm/sn/tioca_provider.h> | |
24 | #include <asm/sn/tioce_provider.h> | |
25 | #include "xtalk/hubdev.h" | |
26 | #include "xtalk/xwidgetdev.h" | |
27 | #include <linux/acpi.h> | |
28 | #include <asm/sn/sn2/sn_hwperf.h> | |
647fb47d | 29 | #include <asm/sn/acpi.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 | */ | |
8ea6091f JK |
123 | |
124 | static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device, | |
125 | struct sn_flush_device_common *common) | |
126 | { | |
127 | struct sn_flush_device_war *war_list; | |
128 | struct sn_flush_device_war *dev_entry; | |
129 | struct ia64_sal_retval isrv = {0,0,0,0}; | |
130 | ||
54f8dd3c MS |
131 | printk_once(KERN_WARNING |
132 | "PROM version < 4.50 -- implementing old PROM flush WAR\n"); | |
8ea6091f JK |
133 | |
134 | war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL); | |
80a03e29 | 135 | BUG_ON(!war_list); |
8ea6091f JK |
136 | |
137 | SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST, | |
138 | nasid, widget, __pa(war_list), 0, 0, 0 ,0); | |
139 | if (isrv.status) | |
140 | panic("sn_device_fixup_war failed: %s\n", | |
141 | ia64_sal_strerror(isrv.status)); | |
142 | ||
143 | dev_entry = war_list + device; | |
144 | memcpy(common,dev_entry, sizeof(*common)); | |
145 | kfree(war_list); | |
146 | ||
147 | return isrv.status; | |
148 | } | |
149 | ||
150 | /* | |
151 | * sn_common_hubdev_init() - This routine is called to initialize the HUB data | |
152 | * structure for each node in the system. | |
153 | */ | |
154 | void __init | |
155 | sn_common_hubdev_init(struct hubdev_info *hubdev) | |
156 | { | |
157 | ||
158 | struct sn_flush_device_kernel *sn_flush_device_kernel; | |
159 | struct sn_flush_device_kernel *dev_entry; | |
160 | s64 status; | |
161 | int widget, device, size; | |
162 | ||
163 | /* Attach the error interrupt handlers */ | |
164 | if (hubdev->hdi_nasid & 1) /* If TIO */ | |
165 | ice_error_init(hubdev); | |
166 | else | |
167 | hub_error_init(hubdev); | |
168 | ||
169 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) | |
170 | hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev; | |
171 | ||
172 | if (!hubdev->hdi_flush_nasid_list.widget_p) | |
173 | return; | |
174 | ||
175 | size = (HUB_WIDGET_ID_MAX + 1) * | |
176 | sizeof(struct sn_flush_device_kernel *); | |
177 | hubdev->hdi_flush_nasid_list.widget_p = | |
178 | kzalloc(size, GFP_KERNEL); | |
80a03e29 | 179 | BUG_ON(!hubdev->hdi_flush_nasid_list.widget_p); |
8ea6091f JK |
180 | |
181 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) { | |
182 | size = DEV_PER_WIDGET * | |
183 | sizeof(struct sn_flush_device_kernel); | |
184 | sn_flush_device_kernel = kzalloc(size, GFP_KERNEL); | |
80a03e29 | 185 | BUG_ON(!sn_flush_device_kernel); |
8ea6091f JK |
186 | |
187 | dev_entry = sn_flush_device_kernel; | |
188 | for (device = 0; device < DEV_PER_WIDGET; | |
189 | device++, dev_entry++) { | |
190 | size = sizeof(struct sn_flush_device_common); | |
191 | dev_entry->common = kzalloc(size, GFP_KERNEL); | |
80a03e29 | 192 | BUG_ON(!dev_entry->common); |
8ea6091f JK |
193 | if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST)) |
194 | status = sal_get_device_dmaflush_list( | |
195 | hubdev->hdi_nasid, widget, device, | |
196 | (u64)(dev_entry->common)); | |
197 | else | |
198 | status = sn_device_fixup_war(hubdev->hdi_nasid, | |
199 | widget, device, | |
200 | dev_entry->common); | |
201 | if (status != SALRET_OK) | |
202 | panic("SAL call failed: %s\n", | |
203 | ia64_sal_strerror(status)); | |
204 | ||
205 | spin_lock_init(&dev_entry->sfdl_flush_lock); | |
206 | } | |
207 | ||
208 | if (sn_flush_device_kernel) | |
209 | hubdev->hdi_flush_nasid_list.widget_p[widget] = | |
210 | sn_flush_device_kernel; | |
211 | } | |
212 | } | |
213 | ||
214 | void sn_pci_unfixup_slot(struct pci_dev *dev) | |
215 | { | |
216 | struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev; | |
217 | ||
218 | sn_irq_unfixup(dev); | |
219 | pci_dev_put(host_pci_dev); | |
220 | pci_dev_put(dev); | |
221 | } | |
222 | ||
223 | /* | |
6f09a925 | 224 | * sn_pci_fixup_slot() |
8ea6091f | 225 | */ |
6f09a925 JK |
226 | void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *pcidev_info, |
227 | struct sn_irq_info *sn_irq_info) | |
8ea6091f JK |
228 | { |
229 | int segment = pci_domain_nr(dev->bus); | |
8ea6091f | 230 | struct pcibus_bussoft *bs; |
6f09a925 JK |
231 | struct pci_bus *host_pci_bus; |
232 | struct pci_dev *host_pci_dev; | |
233 | unsigned int bus_no, devfn; | |
8ea6091f JK |
234 | |
235 | pci_dev_get(dev); /* for the sysdata pointer */ | |
8ea6091f JK |
236 | |
237 | /* Add pcidev_info to list in pci_controller.platform_data */ | |
238 | list_add_tail(&pcidev_info->pdi_list, | |
239 | &(SN_PLATFORM_DATA(dev->bus)->pcidev_info)); | |
8ea6091f JK |
240 | /* |
241 | * Using the PROMs values for the PCI host bus, get the Linux | |
6f09a925 | 242 | * PCI host_pci_dev struct and set up host bus linkages |
8ea6091f JK |
243 | */ |
244 | ||
245 | bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff; | |
246 | devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff; | |
247 | host_pci_bus = pci_find_bus(segment, bus_no); | |
248 | host_pci_dev = pci_get_slot(host_pci_bus, devfn); | |
249 | ||
250 | pcidev_info->host_pci_dev = host_pci_dev; | |
251 | pcidev_info->pdi_linux_pcidev = dev; | |
252 | pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev); | |
253 | bs = SN_PCIBUS_BUSSOFT(dev->bus); | |
254 | pcidev_info->pdi_pcibus_info = bs; | |
255 | ||
256 | if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) { | |
257 | SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type]; | |
258 | } else { | |
259 | SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider; | |
260 | } | |
261 | ||
262 | /* Only set up IRQ stuff if this device has a host bus context */ | |
263 | if (bs && sn_irq_info->irq_irq) { | |
264 | pcidev_info->pdi_sn_irq_info = sn_irq_info; | |
265 | dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq; | |
266 | sn_irq_fixup(dev, sn_irq_info); | |
267 | } else { | |
268 | pcidev_info->pdi_sn_irq_info = NULL; | |
269 | kfree(sn_irq_info); | |
270 | } | |
271 | } | |
272 | ||
273 | /* | |
274 | * sn_common_bus_fixup - Perform platform specific bus fixup. | |
275 | * Execute the ASIC specific fixup routine | |
276 | * for this bus. | |
277 | */ | |
278 | void | |
279 | sn_common_bus_fixup(struct pci_bus *bus, | |
280 | struct pcibus_bussoft *prom_bussoft_ptr) | |
281 | { | |
282 | int cnode; | |
283 | struct pci_controller *controller; | |
284 | struct hubdev_info *hubdev_info; | |
285 | int nasid; | |
286 | void *provider_soft; | |
287 | struct sn_pcibus_provider *provider; | |
288 | struct sn_platform_data *sn_platform_data; | |
289 | ||
290 | controller = PCI_CONTROLLER(bus); | |
291 | /* | |
292 | * Per-provider fixup. Copies the bus soft structure from prom | |
293 | * to local area and links SN_PCIBUS_BUSSOFT(). | |
294 | */ | |
295 | ||
296 | if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) { | |
297 | printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d", | |
298 | prom_bussoft_ptr->bs_asic_type); | |
299 | return; | |
300 | } | |
301 | ||
302 | if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) | |
303 | return; /* no further fixup necessary */ | |
304 | ||
305 | provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type]; | |
306 | if (provider == NULL) | |
307 | panic("sn_common_bus_fixup: No provider registered for this asic type, %d", | |
308 | prom_bussoft_ptr->bs_asic_type); | |
309 | ||
310 | if (provider->bus_fixup) | |
311 | provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, | |
312 | controller); | |
313 | else | |
314 | provider_soft = NULL; | |
315 | ||
316 | /* | |
317 | * Generic bus fixup goes here. Don't reference prom_bussoft_ptr | |
318 | * after this point. | |
319 | */ | |
320 | controller->platform_data = kzalloc(sizeof(struct sn_platform_data), | |
321 | GFP_KERNEL); | |
80a03e29 | 322 | BUG_ON(controller->platform_data == NULL); |
8ea6091f JK |
323 | sn_platform_data = |
324 | (struct sn_platform_data *) controller->platform_data; | |
325 | sn_platform_data->provider_soft = provider_soft; | |
326 | INIT_LIST_HEAD(&((struct sn_platform_data *) | |
327 | controller->platform_data)->pcidev_info); | |
328 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base); | |
329 | cnode = nasid_to_cnodeid(nasid); | |
330 | hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
331 | SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info = | |
332 | &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]); | |
333 | ||
334 | /* | |
335 | * If the node information we obtained during the fixup phase is | |
336 | * invalid then set controller->node to -1 (undetermined) | |
337 | */ | |
338 | if (controller->node >= num_online_nodes()) { | |
339 | struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus); | |
340 | ||
c2eeb321 | 341 | printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u " |
e088a4ad | 342 | "L_IO=%llx L_MEM=%llx BASE=%llx\n", |
8ea6091f JK |
343 | b->bs_asic_type, b->bs_xid, b->bs_persist_busnum, |
344 | b->bs_legacy_io, b->bs_legacy_mem, b->bs_base); | |
345 | printk(KERN_WARNING "on node %d but only %d nodes online." | |
346 | "Association set to undetermined.\n", | |
347 | controller->node, num_online_nodes()); | |
348 | controller->node = -1; | |
349 | } | |
350 | } | |
351 | ||
352 | void sn_bus_store_sysdata(struct pci_dev *dev) | |
353 | { | |
354 | struct sysdata_el *element; | |
355 | ||
356 | element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); | |
357 | if (!element) { | |
d4ed8084 | 358 | dev_dbg(&dev->dev, "%s: out of memory!\n", __func__); |
8ea6091f JK |
359 | return; |
360 | } | |
361 | element->sysdata = SN_PCIDEV_INFO(dev); | |
362 | list_add(&element->entry, &sn_sysdata_list); | |
363 | } | |
364 | ||
365 | void sn_bus_free_sysdata(void) | |
366 | { | |
367 | struct sysdata_el *element; | |
368 | struct list_head *list, *safe; | |
369 | ||
370 | list_for_each_safe(list, safe, &sn_sysdata_list) { | |
371 | element = list_entry(list, struct sysdata_el, entry); | |
372 | list_del(&element->entry); | |
373 | list_del(&(((struct pcidev_info *) | |
374 | (element->sysdata))->pdi_list)); | |
375 | kfree(element->sysdata); | |
376 | kfree(element); | |
377 | } | |
378 | return; | |
379 | } | |
380 | ||
381 | /* | |
382 | * hubdev_init_node() - Creates the HUB data structure and link them to it's | |
383 | * own NODE specific data area. | |
384 | */ | |
056e6d89 | 385 | void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node) |
8ea6091f JK |
386 | { |
387 | struct hubdev_info *hubdev_info; | |
388 | int size; | |
389 | pg_data_t *pg; | |
390 | ||
391 | size = sizeof(struct hubdev_info); | |
392 | ||
393 | if (node >= num_online_nodes()) /* Headless/memless IO nodes */ | |
394 | pg = NODE_DATA(0); | |
395 | else | |
396 | pg = NODE_DATA(node); | |
397 | ||
398 | hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size); | |
399 | ||
400 | npda->pdinfo = (void *)hubdev_info; | |
401 | } | |
402 | ||
403 | geoid_t | |
404 | cnodeid_get_geoid(cnodeid_t cnode) | |
405 | { | |
406 | struct hubdev_info *hubdev; | |
407 | ||
408 | hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
409 | return hubdev->hdi_geoid; | |
410 | } | |
411 | ||
412 | void sn_generate_path(struct pci_bus *pci_bus, char *address) | |
413 | { | |
414 | nasid_t nasid; | |
415 | cnodeid_t cnode; | |
416 | geoid_t geoid; | |
417 | moduleid_t moduleid; | |
418 | u16 bricktype; | |
419 | ||
420 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base); | |
421 | cnode = nasid_to_cnodeid(nasid); | |
422 | geoid = cnodeid_get_geoid(cnode); | |
423 | moduleid = geo_module(geoid); | |
424 | ||
425 | sprintf(address, "module_%c%c%c%c%.2d", | |
426 | '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)), | |
427 | '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)), | |
428 | '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)), | |
429 | MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid)); | |
430 | ||
431 | /* Tollhouse requires slot id to be displayed */ | |
432 | bricktype = MODULE_GET_BTYPE(moduleid); | |
433 | if ((bricktype == L1_BRICKTYPE_191010) || | |
434 | (bricktype == L1_BRICKTYPE_1932)) | |
2be8412c AC |
435 | sprintf(address + strlen(address), "^%d", |
436 | geo_slot(geoid)); | |
8ea6091f JK |
437 | } |
438 | ||
8ea6091f JK |
439 | void __devinit |
440 | sn_pci_fixup_bus(struct pci_bus *bus) | |
441 | { | |
442 | ||
647fb47d | 443 | if (SN_ACPI_BASE_SUPPORT()) |
8ea6091f JK |
444 | sn_acpi_bus_fixup(bus); |
445 | else | |
446 | sn_bus_fixup(bus); | |
447 | } | |
448 | ||
449 | /* | |
450 | * sn_io_early_init - Perform early IO (and some non-IO) initialization. | |
451 | * In particular, setup the sn_pci_provider[] array. | |
452 | * This needs to be done prior to any bus scanning | |
453 | * (acpi_scan_init()) in the ACPI case, as the SN | |
454 | * bus fixup code will reference the array. | |
455 | */ | |
456 | static int __init | |
457 | sn_io_early_init(void) | |
458 | { | |
459 | int i; | |
460 | ||
461 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
462 | return 0; | |
463 | ||
6f09a925 JK |
464 | /* we set the acpi revision to that of the DSDT table OEM rev. */ |
465 | { | |
466 | struct acpi_table_header *header = NULL; | |
467 | ||
385c4d98 | 468 | acpi_get_table(ACPI_SIG_DSDT, 1, &header); |
6f09a925 JK |
469 | BUG_ON(header == NULL); |
470 | sn_acpi_rev = header->oem_revision; | |
471 | } | |
472 | ||
8ea6091f | 473 | /* |
72fdbdce | 474 | * prime sn_pci_provider[]. Individual provider init routines will |
8ea6091f JK |
475 | * override their respective default entries. |
476 | */ | |
477 | ||
478 | for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++) | |
479 | sn_pci_provider[i] = &sn_pci_default_provider; | |
480 | ||
481 | pcibr_init_provider(); | |
482 | tioca_init_provider(); | |
483 | tioce_init_provider(); | |
484 | ||
485 | /* | |
486 | * This is needed to avoid bounce limit checks in the blk layer | |
487 | */ | |
488 | ia64_max_iommu_merge_mask = ~PAGE_MASK; | |
489 | ||
490 | sn_irq_lh_init(); | |
491 | INIT_LIST_HEAD(&sn_sysdata_list); | |
492 | sn_init_cpei_timer(); | |
493 | ||
494 | #ifdef CONFIG_PROC_FS | |
495 | register_sn_procfs(); | |
496 | #endif | |
497 | ||
647fb47d LB |
498 | { |
499 | struct acpi_table_header *header; | |
385c4d98 | 500 | (void)acpi_get_table(ACPI_SIG_DSDT, 1, &header); |
647fb47d LB |
501 | printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n", |
502 | header->oem_revision); | |
503 | } | |
504 | if (SN_ACPI_BASE_SUPPORT()) | |
8ea6091f JK |
505 | sn_io_acpi_init(); |
506 | else | |
507 | sn_io_init(); | |
508 | return 0; | |
509 | } | |
510 | ||
511 | arch_initcall(sn_io_early_init); | |
512 | ||
513 | /* | |
514 | * sn_io_late_init() - Perform any final platform specific IO initialization. | |
515 | */ | |
516 | ||
517 | int __init | |
518 | sn_io_late_init(void) | |
519 | { | |
520 | struct pci_bus *bus; | |
521 | struct pcibus_bussoft *bussoft; | |
522 | cnodeid_t cnode; | |
523 | nasid_t nasid; | |
524 | cnodeid_t near_cnode; | |
525 | ||
526 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
527 | return 0; | |
528 | ||
529 | /* | |
530 | * Setup closest node in pci_controller->node for | |
531 | * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using | |
532 | * info from the PROM). | |
533 | */ | |
534 | bus = NULL; | |
535 | while ((bus = pci_find_next_bus(bus)) != NULL) { | |
536 | bussoft = SN_PCIBUS_BUSSOFT(bus); | |
537 | nasid = NASID_GET(bussoft->bs_base); | |
538 | cnode = nasid_to_cnodeid(nasid); | |
539 | if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) || | |
afc2cf35 MH |
540 | (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE) || |
541 | (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC)) { | |
542 | /* PCI Bridge: find nearest node with CPUs */ | |
8ea6091f JK |
543 | int e = sn_hwperf_get_nearest_node(cnode, NULL, |
544 | &near_cnode); | |
545 | if (e < 0) { | |
546 | near_cnode = (cnodeid_t)-1; /* use any node */ | |
afc2cf35 MH |
547 | printk(KERN_WARNING "sn_io_late_init: failed " |
548 | "to find near node with CPUs for " | |
8ea6091f JK |
549 | "node %d, err=%d\n", cnode, e); |
550 | } | |
551 | PCI_CONTROLLER(bus)->node = near_cnode; | |
8ea6091f JK |
552 | } |
553 | } | |
554 | ||
555 | sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */ | |
556 | ||
557 | return 0; | |
558 | } | |
559 | ||
560 | fs_initcall(sn_io_late_init); | |
561 | ||
8ea6091f JK |
562 | EXPORT_SYMBOL(sn_pci_unfixup_slot); |
563 | EXPORT_SYMBOL(sn_bus_store_sysdata); | |
564 | EXPORT_SYMBOL(sn_bus_free_sysdata); | |
565 | EXPORT_SYMBOL(sn_generate_path); | |
566 |