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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> | |
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> | |
8ea6091f JK |
28 | |
29 | extern void sn_init_cpei_timer(void); | |
30 | extern void register_sn_procfs(void); | |
31 | extern void sn_acpi_bus_fixup(struct pci_bus *); | |
32 | extern void sn_bus_fixup(struct pci_bus *); | |
33 | extern void sn_acpi_slot_fixup(struct pci_dev *, struct pcidev_info *); | |
34 | extern void sn_more_slot_fixup(struct pci_dev *, struct pcidev_info *); | |
35 | extern void sn_legacy_pci_window_fixup(struct pci_controller *, u64, u64); | |
36 | extern void sn_io_acpi_init(void); | |
37 | extern void sn_io_init(void); | |
38 | ||
8ea6091f JK |
39 | static struct list_head sn_sysdata_list; |
40 | ||
41 | /* sysdata list struct */ | |
42 | struct sysdata_el { | |
43 | struct list_head entry; | |
44 | void *sysdata; | |
45 | }; | |
46 | ||
47 | int sn_ioif_inited; /* SN I/O infrastructure initialized? */ | |
48 | ||
49 | struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */ | |
50 | ||
ad71860a AS |
51 | int sn_acpi_base_support() |
52 | { | |
53 | struct acpi_table_header *header; | |
54 | (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header); | |
55 | if (header && header->oem_revision >= 0x20101) | |
56 | return 1; | |
57 | return 0; | |
58 | } | |
59 | ||
8ea6091f JK |
60 | /* |
61 | * Hooks and struct for unsupported pci providers | |
62 | */ | |
63 | ||
64 | static dma_addr_t | |
65 | sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type) | |
66 | { | |
67 | return 0; | |
68 | } | |
69 | ||
70 | static void | |
71 | sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction) | |
72 | { | |
73 | return; | |
74 | } | |
75 | ||
76 | static void * | |
77 | sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller) | |
78 | { | |
79 | return NULL; | |
80 | } | |
81 | ||
82 | static struct sn_pcibus_provider sn_pci_default_provider = { | |
83 | .dma_map = sn_default_pci_map, | |
84 | .dma_map_consistent = sn_default_pci_map, | |
85 | .dma_unmap = sn_default_pci_unmap, | |
86 | .bus_fixup = sn_default_pci_bus_fixup, | |
87 | }; | |
88 | ||
89 | /* | |
90 | * Retrieve the DMA Flush List given nasid, widget, and device. | |
91 | * This list is needed to implement the WAR - Flush DMA data on PIO Reads. | |
92 | */ | |
93 | static inline u64 | |
94 | sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num, | |
95 | u64 address) | |
96 | { | |
97 | struct ia64_sal_retval ret_stuff; | |
98 | ret_stuff.status = 0; | |
99 | ret_stuff.v0 = 0; | |
100 | ||
101 | SAL_CALL_NOLOCK(ret_stuff, | |
102 | (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST, | |
103 | (u64) nasid, (u64) widget_num, | |
104 | (u64) device_num, (u64) address, 0, 0, 0); | |
105 | return ret_stuff.status; | |
106 | } | |
107 | ||
108 | /* | |
109 | * Retrieve the pci device information given the bus and device|function number. | |
110 | */ | |
111 | static inline u64 | |
112 | sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev, | |
113 | u64 sn_irq_info) | |
114 | { | |
115 | struct ia64_sal_retval ret_stuff; | |
116 | ret_stuff.status = 0; | |
117 | ret_stuff.v0 = 0; | |
118 | ||
119 | SAL_CALL_NOLOCK(ret_stuff, | |
120 | (u64) SN_SAL_IOIF_GET_PCIDEV_INFO, | |
121 | (u64) segment, (u64) bus_number, (u64) devfn, | |
122 | (u64) pci_dev, | |
123 | sn_irq_info, 0, 0); | |
124 | return ret_stuff.v0; | |
125 | } | |
126 | ||
127 | /* | |
128 | * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified | |
129 | * device. | |
130 | */ | |
131 | inline struct pcidev_info * | |
132 | sn_pcidev_info_get(struct pci_dev *dev) | |
133 | { | |
134 | struct pcidev_info *pcidev; | |
135 | ||
136 | list_for_each_entry(pcidev, | |
137 | &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) { | |
138 | if (pcidev->pdi_linux_pcidev == dev) | |
139 | return pcidev; | |
140 | } | |
141 | return NULL; | |
142 | } | |
143 | ||
144 | /* Older PROM flush WAR | |
145 | * | |
146 | * 01/16/06 -- This war will be in place until a new official PROM is released. | |
147 | * Additionally note that the struct sn_flush_device_war also has to be | |
148 | * removed from arch/ia64/sn/include/xtalk/hubdev.h | |
149 | */ | |
150 | static u8 war_implemented = 0; | |
151 | ||
152 | static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device, | |
153 | struct sn_flush_device_common *common) | |
154 | { | |
155 | struct sn_flush_device_war *war_list; | |
156 | struct sn_flush_device_war *dev_entry; | |
157 | struct ia64_sal_retval isrv = {0,0,0,0}; | |
158 | ||
159 | if (!war_implemented) { | |
160 | printk(KERN_WARNING "PROM version < 4.50 -- implementing old " | |
161 | "PROM flush WAR\n"); | |
162 | war_implemented = 1; | |
163 | } | |
164 | ||
165 | war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL); | |
166 | if (!war_list) | |
167 | BUG(); | |
168 | ||
169 | SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST, | |
170 | nasid, widget, __pa(war_list), 0, 0, 0 ,0); | |
171 | if (isrv.status) | |
172 | panic("sn_device_fixup_war failed: %s\n", | |
173 | ia64_sal_strerror(isrv.status)); | |
174 | ||
175 | dev_entry = war_list + device; | |
176 | memcpy(common,dev_entry, sizeof(*common)); | |
177 | kfree(war_list); | |
178 | ||
179 | return isrv.status; | |
180 | } | |
181 | ||
182 | /* | |
183 | * sn_common_hubdev_init() - This routine is called to initialize the HUB data | |
184 | * structure for each node in the system. | |
185 | */ | |
186 | void __init | |
187 | sn_common_hubdev_init(struct hubdev_info *hubdev) | |
188 | { | |
189 | ||
190 | struct sn_flush_device_kernel *sn_flush_device_kernel; | |
191 | struct sn_flush_device_kernel *dev_entry; | |
192 | s64 status; | |
193 | int widget, device, size; | |
194 | ||
195 | /* Attach the error interrupt handlers */ | |
196 | if (hubdev->hdi_nasid & 1) /* If TIO */ | |
197 | ice_error_init(hubdev); | |
198 | else | |
199 | hub_error_init(hubdev); | |
200 | ||
201 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) | |
202 | hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev; | |
203 | ||
204 | if (!hubdev->hdi_flush_nasid_list.widget_p) | |
205 | return; | |
206 | ||
207 | size = (HUB_WIDGET_ID_MAX + 1) * | |
208 | sizeof(struct sn_flush_device_kernel *); | |
209 | hubdev->hdi_flush_nasid_list.widget_p = | |
210 | kzalloc(size, GFP_KERNEL); | |
211 | if (!hubdev->hdi_flush_nasid_list.widget_p) | |
212 | BUG(); | |
213 | ||
214 | for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) { | |
215 | size = DEV_PER_WIDGET * | |
216 | sizeof(struct sn_flush_device_kernel); | |
217 | sn_flush_device_kernel = kzalloc(size, GFP_KERNEL); | |
218 | if (!sn_flush_device_kernel) | |
219 | BUG(); | |
220 | ||
221 | dev_entry = sn_flush_device_kernel; | |
222 | for (device = 0; device < DEV_PER_WIDGET; | |
223 | device++, dev_entry++) { | |
224 | size = sizeof(struct sn_flush_device_common); | |
225 | dev_entry->common = kzalloc(size, GFP_KERNEL); | |
226 | if (!dev_entry->common) | |
227 | BUG(); | |
228 | if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST)) | |
229 | status = sal_get_device_dmaflush_list( | |
230 | hubdev->hdi_nasid, widget, device, | |
231 | (u64)(dev_entry->common)); | |
232 | else | |
233 | status = sn_device_fixup_war(hubdev->hdi_nasid, | |
234 | widget, device, | |
235 | dev_entry->common); | |
236 | if (status != SALRET_OK) | |
237 | panic("SAL call failed: %s\n", | |
238 | ia64_sal_strerror(status)); | |
239 | ||
240 | spin_lock_init(&dev_entry->sfdl_flush_lock); | |
241 | } | |
242 | ||
243 | if (sn_flush_device_kernel) | |
244 | hubdev->hdi_flush_nasid_list.widget_p[widget] = | |
245 | sn_flush_device_kernel; | |
246 | } | |
247 | } | |
248 | ||
249 | void sn_pci_unfixup_slot(struct pci_dev *dev) | |
250 | { | |
251 | struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev; | |
252 | ||
253 | sn_irq_unfixup(dev); | |
254 | pci_dev_put(host_pci_dev); | |
255 | pci_dev_put(dev); | |
256 | } | |
257 | ||
258 | /* | |
259 | * sn_pci_fixup_slot() - This routine sets up a slot's resources consistent | |
260 | * with the Linux PCI abstraction layer. Resources | |
261 | * acquired from our PCI provider include PIO maps | |
262 | * to BAR space and interrupt objects. | |
263 | */ | |
264 | void sn_pci_fixup_slot(struct pci_dev *dev) | |
265 | { | |
266 | int segment = pci_domain_nr(dev->bus); | |
267 | int status = 0; | |
268 | struct pcibus_bussoft *bs; | |
269 | struct pci_bus *host_pci_bus; | |
270 | struct pci_dev *host_pci_dev; | |
271 | struct pcidev_info *pcidev_info; | |
272 | struct sn_irq_info *sn_irq_info; | |
273 | unsigned int bus_no, devfn; | |
274 | ||
275 | pci_dev_get(dev); /* for the sysdata pointer */ | |
276 | pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL); | |
277 | if (!pcidev_info) | |
278 | BUG(); /* Cannot afford to run out of memory */ | |
279 | ||
280 | sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL); | |
281 | if (!sn_irq_info) | |
282 | BUG(); /* Cannot afford to run out of memory */ | |
283 | ||
284 | /* Call to retrieve pci device information needed by kernel. */ | |
285 | status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number, | |
286 | dev->devfn, | |
287 | (u64) __pa(pcidev_info), | |
288 | (u64) __pa(sn_irq_info)); | |
289 | if (status) | |
290 | BUG(); /* Cannot get platform pci device information */ | |
291 | ||
292 | /* Add pcidev_info to list in pci_controller.platform_data */ | |
293 | list_add_tail(&pcidev_info->pdi_list, | |
294 | &(SN_PLATFORM_DATA(dev->bus)->pcidev_info)); | |
295 | ||
ad71860a | 296 | if (sn_acpi_base_support()) |
a2302c68 JK |
297 | sn_acpi_slot_fixup(dev, pcidev_info); |
298 | else | |
8ea6091f | 299 | sn_more_slot_fixup(dev, pcidev_info); |
8ea6091f JK |
300 | /* |
301 | * Using the PROMs values for the PCI host bus, get the Linux | |
302 | * PCI host_pci_dev struct and set up host bus linkages | |
303 | */ | |
304 | ||
305 | bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff; | |
306 | devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff; | |
307 | host_pci_bus = pci_find_bus(segment, bus_no); | |
308 | host_pci_dev = pci_get_slot(host_pci_bus, devfn); | |
309 | ||
310 | pcidev_info->host_pci_dev = host_pci_dev; | |
311 | pcidev_info->pdi_linux_pcidev = dev; | |
312 | pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev); | |
313 | bs = SN_PCIBUS_BUSSOFT(dev->bus); | |
314 | pcidev_info->pdi_pcibus_info = bs; | |
315 | ||
316 | if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) { | |
317 | SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type]; | |
318 | } else { | |
319 | SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider; | |
320 | } | |
321 | ||
322 | /* Only set up IRQ stuff if this device has a host bus context */ | |
323 | if (bs && sn_irq_info->irq_irq) { | |
324 | pcidev_info->pdi_sn_irq_info = sn_irq_info; | |
325 | dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq; | |
326 | sn_irq_fixup(dev, sn_irq_info); | |
327 | } else { | |
328 | pcidev_info->pdi_sn_irq_info = NULL; | |
329 | kfree(sn_irq_info); | |
330 | } | |
331 | } | |
332 | ||
333 | /* | |
334 | * sn_common_bus_fixup - Perform platform specific bus fixup. | |
335 | * Execute the ASIC specific fixup routine | |
336 | * for this bus. | |
337 | */ | |
338 | void | |
339 | sn_common_bus_fixup(struct pci_bus *bus, | |
340 | struct pcibus_bussoft *prom_bussoft_ptr) | |
341 | { | |
342 | int cnode; | |
343 | struct pci_controller *controller; | |
344 | struct hubdev_info *hubdev_info; | |
345 | int nasid; | |
346 | void *provider_soft; | |
347 | struct sn_pcibus_provider *provider; | |
348 | struct sn_platform_data *sn_platform_data; | |
349 | ||
350 | controller = PCI_CONTROLLER(bus); | |
351 | /* | |
352 | * Per-provider fixup. Copies the bus soft structure from prom | |
353 | * to local area and links SN_PCIBUS_BUSSOFT(). | |
354 | */ | |
355 | ||
356 | if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) { | |
357 | printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d", | |
358 | prom_bussoft_ptr->bs_asic_type); | |
359 | return; | |
360 | } | |
361 | ||
362 | if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB) | |
363 | return; /* no further fixup necessary */ | |
364 | ||
365 | provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type]; | |
366 | if (provider == NULL) | |
367 | panic("sn_common_bus_fixup: No provider registered for this asic type, %d", | |
368 | prom_bussoft_ptr->bs_asic_type); | |
369 | ||
370 | if (provider->bus_fixup) | |
371 | provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, | |
372 | controller); | |
373 | else | |
374 | provider_soft = NULL; | |
375 | ||
376 | /* | |
377 | * Generic bus fixup goes here. Don't reference prom_bussoft_ptr | |
378 | * after this point. | |
379 | */ | |
380 | controller->platform_data = kzalloc(sizeof(struct sn_platform_data), | |
381 | GFP_KERNEL); | |
382 | if (controller->platform_data == NULL) | |
383 | BUG(); | |
384 | sn_platform_data = | |
385 | (struct sn_platform_data *) controller->platform_data; | |
386 | sn_platform_data->provider_soft = provider_soft; | |
387 | INIT_LIST_HEAD(&((struct sn_platform_data *) | |
388 | controller->platform_data)->pcidev_info); | |
389 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base); | |
390 | cnode = nasid_to_cnodeid(nasid); | |
391 | hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
392 | SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info = | |
393 | &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]); | |
394 | ||
395 | /* | |
396 | * If the node information we obtained during the fixup phase is | |
397 | * invalid then set controller->node to -1 (undetermined) | |
398 | */ | |
399 | if (controller->node >= num_online_nodes()) { | |
400 | struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus); | |
401 | ||
402 | printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u" | |
403 | "L_IO=%lx L_MEM=%lx BASE=%lx\n", | |
404 | b->bs_asic_type, b->bs_xid, b->bs_persist_busnum, | |
405 | b->bs_legacy_io, b->bs_legacy_mem, b->bs_base); | |
406 | printk(KERN_WARNING "on node %d but only %d nodes online." | |
407 | "Association set to undetermined.\n", | |
408 | controller->node, num_online_nodes()); | |
409 | controller->node = -1; | |
410 | } | |
411 | } | |
412 | ||
413 | void sn_bus_store_sysdata(struct pci_dev *dev) | |
414 | { | |
415 | struct sysdata_el *element; | |
416 | ||
417 | element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); | |
418 | if (!element) { | |
419 | dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__); | |
420 | return; | |
421 | } | |
422 | element->sysdata = SN_PCIDEV_INFO(dev); | |
423 | list_add(&element->entry, &sn_sysdata_list); | |
424 | } | |
425 | ||
426 | void sn_bus_free_sysdata(void) | |
427 | { | |
428 | struct sysdata_el *element; | |
429 | struct list_head *list, *safe; | |
430 | ||
431 | list_for_each_safe(list, safe, &sn_sysdata_list) { | |
432 | element = list_entry(list, struct sysdata_el, entry); | |
433 | list_del(&element->entry); | |
434 | list_del(&(((struct pcidev_info *) | |
435 | (element->sysdata))->pdi_list)); | |
436 | kfree(element->sysdata); | |
437 | kfree(element); | |
438 | } | |
439 | return; | |
440 | } | |
441 | ||
442 | /* | |
443 | * hubdev_init_node() - Creates the HUB data structure and link them to it's | |
444 | * own NODE specific data area. | |
445 | */ | |
446 | void hubdev_init_node(nodepda_t * npda, cnodeid_t node) | |
447 | { | |
448 | struct hubdev_info *hubdev_info; | |
449 | int size; | |
450 | pg_data_t *pg; | |
451 | ||
452 | size = sizeof(struct hubdev_info); | |
453 | ||
454 | if (node >= num_online_nodes()) /* Headless/memless IO nodes */ | |
455 | pg = NODE_DATA(0); | |
456 | else | |
457 | pg = NODE_DATA(node); | |
458 | ||
459 | hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size); | |
460 | ||
461 | npda->pdinfo = (void *)hubdev_info; | |
462 | } | |
463 | ||
464 | geoid_t | |
465 | cnodeid_get_geoid(cnodeid_t cnode) | |
466 | { | |
467 | struct hubdev_info *hubdev; | |
468 | ||
469 | hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo); | |
470 | return hubdev->hdi_geoid; | |
471 | } | |
472 | ||
473 | void sn_generate_path(struct pci_bus *pci_bus, char *address) | |
474 | { | |
475 | nasid_t nasid; | |
476 | cnodeid_t cnode; | |
477 | geoid_t geoid; | |
478 | moduleid_t moduleid; | |
479 | u16 bricktype; | |
480 | ||
481 | nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base); | |
482 | cnode = nasid_to_cnodeid(nasid); | |
483 | geoid = cnodeid_get_geoid(cnode); | |
484 | moduleid = geo_module(geoid); | |
485 | ||
486 | sprintf(address, "module_%c%c%c%c%.2d", | |
487 | '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)), | |
488 | '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)), | |
489 | '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)), | |
490 | MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid)); | |
491 | ||
492 | /* Tollhouse requires slot id to be displayed */ | |
493 | bricktype = MODULE_GET_BTYPE(moduleid); | |
494 | if ((bricktype == L1_BRICKTYPE_191010) || | |
495 | (bricktype == L1_BRICKTYPE_1932)) | |
496 | sprintf(address, "%s^%d", address, geo_slot(geoid)); | |
497 | } | |
498 | ||
499 | /* | |
500 | * sn_pci_fixup_bus() - Perform SN specific setup of software structs | |
501 | * (pcibus_bussoft, pcidev_info) and hardware | |
502 | * registers, for the specified bus and devices under it. | |
503 | */ | |
504 | void __devinit | |
505 | sn_pci_fixup_bus(struct pci_bus *bus) | |
506 | { | |
507 | ||
ad71860a | 508 | if (sn_acpi_base_support()) |
8ea6091f JK |
509 | sn_acpi_bus_fixup(bus); |
510 | else | |
511 | sn_bus_fixup(bus); | |
512 | } | |
513 | ||
514 | /* | |
515 | * sn_io_early_init - Perform early IO (and some non-IO) initialization. | |
516 | * In particular, setup the sn_pci_provider[] array. | |
517 | * This needs to be done prior to any bus scanning | |
518 | * (acpi_scan_init()) in the ACPI case, as the SN | |
519 | * bus fixup code will reference the array. | |
520 | */ | |
521 | static int __init | |
522 | sn_io_early_init(void) | |
523 | { | |
524 | int i; | |
525 | ||
526 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
527 | return 0; | |
528 | ||
529 | /* | |
530 | * prime sn_pci_provider[]. Individial provider init routines will | |
531 | * override their respective default entries. | |
532 | */ | |
533 | ||
534 | for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++) | |
535 | sn_pci_provider[i] = &sn_pci_default_provider; | |
536 | ||
537 | pcibr_init_provider(); | |
538 | tioca_init_provider(); | |
539 | tioce_init_provider(); | |
540 | ||
541 | /* | |
542 | * This is needed to avoid bounce limit checks in the blk layer | |
543 | */ | |
544 | ia64_max_iommu_merge_mask = ~PAGE_MASK; | |
545 | ||
546 | sn_irq_lh_init(); | |
547 | INIT_LIST_HEAD(&sn_sysdata_list); | |
548 | sn_init_cpei_timer(); | |
549 | ||
550 | #ifdef CONFIG_PROC_FS | |
551 | register_sn_procfs(); | |
552 | #endif | |
553 | ||
554 | printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n", | |
555 | acpi_gbl_DSDT->oem_revision); | |
ad71860a | 556 | if (sn_acpi_base_support()) |
8ea6091f JK |
557 | sn_io_acpi_init(); |
558 | else | |
559 | sn_io_init(); | |
560 | return 0; | |
561 | } | |
562 | ||
563 | arch_initcall(sn_io_early_init); | |
564 | ||
565 | /* | |
566 | * sn_io_late_init() - Perform any final platform specific IO initialization. | |
567 | */ | |
568 | ||
569 | int __init | |
570 | sn_io_late_init(void) | |
571 | { | |
572 | struct pci_bus *bus; | |
573 | struct pcibus_bussoft *bussoft; | |
574 | cnodeid_t cnode; | |
575 | nasid_t nasid; | |
576 | cnodeid_t near_cnode; | |
577 | ||
578 | if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM()) | |
579 | return 0; | |
580 | ||
581 | /* | |
582 | * Setup closest node in pci_controller->node for | |
583 | * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using | |
584 | * info from the PROM). | |
585 | */ | |
586 | bus = NULL; | |
587 | while ((bus = pci_find_next_bus(bus)) != NULL) { | |
588 | bussoft = SN_PCIBUS_BUSSOFT(bus); | |
589 | nasid = NASID_GET(bussoft->bs_base); | |
590 | cnode = nasid_to_cnodeid(nasid); | |
591 | if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) || | |
592 | (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE)) { | |
593 | /* TIO PCI Bridge: find nearest node with CPUs */ | |
594 | int e = sn_hwperf_get_nearest_node(cnode, NULL, | |
595 | &near_cnode); | |
596 | if (e < 0) { | |
597 | near_cnode = (cnodeid_t)-1; /* use any node */ | |
598 | printk(KERN_WARNING "pcibr_bus_fixup: failed " | |
599 | "to find near node with CPUs to TIO " | |
600 | "node %d, err=%d\n", cnode, e); | |
601 | } | |
602 | PCI_CONTROLLER(bus)->node = near_cnode; | |
603 | } else if (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC) { | |
604 | PCI_CONTROLLER(bus)->node = cnode; | |
605 | } | |
606 | } | |
607 | ||
608 | sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */ | |
609 | ||
610 | return 0; | |
611 | } | |
612 | ||
613 | fs_initcall(sn_io_late_init); | |
614 | ||
615 | EXPORT_SYMBOL(sn_pci_fixup_slot); | |
616 | EXPORT_SYMBOL(sn_pci_unfixup_slot); | |
617 | EXPORT_SYMBOL(sn_bus_store_sysdata); | |
618 | EXPORT_SYMBOL(sn_bus_free_sysdata); | |
619 | EXPORT_SYMBOL(sn_generate_path); | |
620 |