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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>
28#include <asm/sn/acpi.h>
29
30extern void sn_init_cpei_timer(void);
31extern void register_sn_procfs(void);
32extern void sn_io_acpi_init(void);
33extern void sn_io_init(void);
34
35
36static struct list_head sn_sysdata_list;
37
38
39struct sysdata_el {
40 struct list_head entry;
41 void *sysdata;
42};
43
44int sn_ioif_inited;
45
46int sn_acpi_rev;
47EXPORT_SYMBOL_GPL(sn_acpi_rev);
48
49struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES];
50
51
52
53
54
55static dma_addr_t
56sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
57{
58 return 0;
59}
60
61static void
62sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
63{
64 return;
65}
66
67static void *
68sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
69{
70 return NULL;
71}
72
73static struct sn_pcibus_provider sn_pci_default_provider = {
74 .dma_map = sn_default_pci_map,
75 .dma_map_consistent = sn_default_pci_map,
76 .dma_unmap = sn_default_pci_unmap,
77 .bus_fixup = sn_default_pci_bus_fixup,
78};
79
80
81
82
83
84static inline u64
85sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
86 u64 address)
87{
88 struct ia64_sal_retval ret_stuff;
89 ret_stuff.status = 0;
90 ret_stuff.v0 = 0;
91
92 SAL_CALL_NOLOCK(ret_stuff,
93 (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
94 (u64) nasid, (u64) widget_num,
95 (u64) device_num, (u64) address, 0, 0, 0);
96 return ret_stuff.status;
97}
98
99
100
101
102
103inline struct pcidev_info *
104sn_pcidev_info_get(struct pci_dev *dev)
105{
106 struct pcidev_info *pcidev;
107
108 list_for_each_entry(pcidev,
109 &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) {
110 if (pcidev->pdi_linux_pcidev == dev)
111 return pcidev;
112 }
113 return NULL;
114}
115
116
117
118
119
120
121
122
123static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
124 struct sn_flush_device_common *common)
125{
126 struct sn_flush_device_war *war_list;
127 struct sn_flush_device_war *dev_entry;
128 struct ia64_sal_retval isrv = {0,0,0,0};
129
130 printk_once(KERN_WARNING
131 "PROM version < 4.50 -- implementing old PROM flush WAR\n");
132
133 war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
134 BUG_ON(!war_list);
135
136 SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
137 nasid, widget, __pa(war_list), 0, 0, 0 ,0);
138 if (isrv.status)
139 panic("sn_device_fixup_war failed: %s\n",
140 ia64_sal_strerror(isrv.status));
141
142 dev_entry = war_list + device;
143 memcpy(common,dev_entry, sizeof(*common));
144 kfree(war_list);
145
146 return isrv.status;
147}
148
149
150
151
152
153void __init
154sn_common_hubdev_init(struct hubdev_info *hubdev)
155{
156
157 struct sn_flush_device_kernel *sn_flush_device_kernel;
158 struct sn_flush_device_kernel *dev_entry;
159 s64 status;
160 int widget, device, size;
161
162
163 if (hubdev->hdi_nasid & 1)
164 ice_error_init(hubdev);
165 else
166 hub_error_init(hubdev);
167
168 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
169 hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
170
171 if (!hubdev->hdi_flush_nasid_list.widget_p)
172 return;
173
174 size = (HUB_WIDGET_ID_MAX + 1) *
175 sizeof(struct sn_flush_device_kernel *);
176 hubdev->hdi_flush_nasid_list.widget_p =
177 kzalloc(size, GFP_KERNEL);
178 BUG_ON(!hubdev->hdi_flush_nasid_list.widget_p);
179
180 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
181 size = DEV_PER_WIDGET *
182 sizeof(struct sn_flush_device_kernel);
183 sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
184 BUG_ON(!sn_flush_device_kernel);
185
186 dev_entry = sn_flush_device_kernel;
187 for (device = 0; device < DEV_PER_WIDGET;
188 device++, dev_entry++) {
189 size = sizeof(struct sn_flush_device_common);
190 dev_entry->common = kzalloc(size, GFP_KERNEL);
191 BUG_ON(!dev_entry->common);
192 if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST))
193 status = sal_get_device_dmaflush_list(
194 hubdev->hdi_nasid, widget, device,
195 (u64)(dev_entry->common));
196 else
197 status = sn_device_fixup_war(hubdev->hdi_nasid,
198 widget, device,
199 dev_entry->common);
200 if (status != SALRET_OK)
201 panic("SAL call failed: %s\n",
202 ia64_sal_strerror(status));
203
204 spin_lock_init(&dev_entry->sfdl_flush_lock);
205 }
206
207 if (sn_flush_device_kernel)
208 hubdev->hdi_flush_nasid_list.widget_p[widget] =
209 sn_flush_device_kernel;
210 }
211}
212
213void sn_pci_unfixup_slot(struct pci_dev *dev)
214{
215 struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
216
217 sn_irq_unfixup(dev);
218 pci_dev_put(host_pci_dev);
219 pci_dev_put(dev);
220}
221
222
223
224
225void sn_pci_fixup_slot(struct pci_dev *dev, struct pcidev_info *pcidev_info,
226 struct sn_irq_info *sn_irq_info)
227{
228 int segment = pci_domain_nr(dev->bus);
229 struct pcibus_bussoft *bs;
230 struct pci_bus *host_pci_bus;
231 struct pci_dev *host_pci_dev;
232 unsigned int bus_no, devfn;
233
234 pci_dev_get(dev);
235
236
237 list_add_tail(&pcidev_info->pdi_list,
238 &(SN_PLATFORM_DATA(dev->bus)->pcidev_info));
239
240
241
242
243
244 bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
245 devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
246 host_pci_bus = pci_find_bus(segment, bus_no);
247 host_pci_dev = pci_get_slot(host_pci_bus, devfn);
248
249 pcidev_info->host_pci_dev = host_pci_dev;
250 pcidev_info->pdi_linux_pcidev = dev;
251 pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
252 bs = SN_PCIBUS_BUSSOFT(dev->bus);
253 pcidev_info->pdi_pcibus_info = bs;
254
255 if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
256 SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
257 } else {
258 SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
259 }
260
261
262 if (bs && sn_irq_info->irq_irq) {
263 pcidev_info->pdi_sn_irq_info = sn_irq_info;
264 dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
265 sn_irq_fixup(dev, sn_irq_info);
266 } else {
267 pcidev_info->pdi_sn_irq_info = NULL;
268 kfree(sn_irq_info);
269 }
270}
271
272
273
274
275
276
277void
278sn_common_bus_fixup(struct pci_bus *bus,
279 struct pcibus_bussoft *prom_bussoft_ptr)
280{
281 int cnode;
282 struct pci_controller *controller;
283 struct hubdev_info *hubdev_info;
284 int nasid;
285 void *provider_soft;
286 struct sn_pcibus_provider *provider;
287 struct sn_platform_data *sn_platform_data;
288
289 controller = PCI_CONTROLLER(bus);
290
291
292
293
294
295 if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
296 printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d",
297 prom_bussoft_ptr->bs_asic_type);
298 return;
299 }
300
301 if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
302 return;
303
304 provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
305 if (provider == NULL)
306 panic("sn_common_bus_fixup: No provider registered for this asic type, %d",
307 prom_bussoft_ptr->bs_asic_type);
308
309 if (provider->bus_fixup)
310 provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr,
311 controller);
312 else
313 provider_soft = NULL;
314
315
316
317
318
319 controller->platform_data = kzalloc(sizeof(struct sn_platform_data),
320 GFP_KERNEL);
321 BUG_ON(controller->platform_data == NULL);
322 sn_platform_data =
323 (struct sn_platform_data *) controller->platform_data;
324 sn_platform_data->provider_soft = provider_soft;
325 INIT_LIST_HEAD(&((struct sn_platform_data *)
326 controller->platform_data)->pcidev_info);
327 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
328 cnode = nasid_to_cnodeid(nasid);
329 hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
330 SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
331 &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
332
333
334
335
336
337 if (controller->node >= num_online_nodes()) {
338 struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
339
340 printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u "
341 "L_IO=%llx L_MEM=%llx BASE=%llx\n",
342 b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
343 b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
344 printk(KERN_WARNING "on node %d but only %d nodes online."
345 "Association set to undetermined.\n",
346 controller->node, num_online_nodes());
347 controller->node = -1;
348 }
349}
350
351void sn_bus_store_sysdata(struct pci_dev *dev)
352{
353 struct sysdata_el *element;
354
355 element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
356 if (!element) {
357 dev_dbg(&dev->dev, "%s: out of memory!\n", __func__);
358 return;
359 }
360 element->sysdata = SN_PCIDEV_INFO(dev);
361 list_add(&element->entry, &sn_sysdata_list);
362}
363
364void sn_bus_free_sysdata(void)
365{
366 struct sysdata_el *element;
367 struct list_head *list, *safe;
368
369 list_for_each_safe(list, safe, &sn_sysdata_list) {
370 element = list_entry(list, struct sysdata_el, entry);
371 list_del(&element->entry);
372 list_del(&(((struct pcidev_info *)
373 (element->sysdata))->pdi_list));
374 kfree(element->sysdata);
375 kfree(element);
376 }
377 return;
378}
379
380
381
382
383
384void __init hubdev_init_node(nodepda_t * npda, cnodeid_t node)
385{
386 struct hubdev_info *hubdev_info;
387 int size;
388 pg_data_t *pg;
389
390 size = sizeof(struct hubdev_info);
391
392 if (node >= num_online_nodes())
393 pg = NODE_DATA(0);
394 else
395 pg = NODE_DATA(node);
396
397 hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
398
399 npda->pdinfo = (void *)hubdev_info;
400}
401
402geoid_t
403cnodeid_get_geoid(cnodeid_t cnode)
404{
405 struct hubdev_info *hubdev;
406
407 hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
408 return hubdev->hdi_geoid;
409}
410
411void sn_generate_path(struct pci_bus *pci_bus, char *address)
412{
413 nasid_t nasid;
414 cnodeid_t cnode;
415 geoid_t geoid;
416 moduleid_t moduleid;
417 u16 bricktype;
418
419 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
420 cnode = nasid_to_cnodeid(nasid);
421 geoid = cnodeid_get_geoid(cnode);
422 moduleid = geo_module(geoid);
423
424 sprintf(address, "module_%c%c%c%c%.2d",
425 '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
426 '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
427 '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
428 MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
429
430
431 bricktype = MODULE_GET_BTYPE(moduleid);
432 if ((bricktype == L1_BRICKTYPE_191010) ||
433 (bricktype == L1_BRICKTYPE_1932))
434 sprintf(address + strlen(address), "^%d",
435 geo_slot(geoid));
436}
437
438void __devinit
439sn_pci_fixup_bus(struct pci_bus *bus)
440{
441
442 if (SN_ACPI_BASE_SUPPORT())
443 sn_acpi_bus_fixup(bus);
444 else
445 sn_bus_fixup(bus);
446}
447
448
449
450
451
452
453
454
455static int __init
456sn_io_early_init(void)
457{
458 int i;
459
460 if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
461 return 0;
462
463
464 {
465 struct acpi_table_header *header = NULL;
466
467 acpi_get_table(ACPI_SIG_DSDT, 1, &header);
468 BUG_ON(header == NULL);
469 sn_acpi_rev = header->oem_revision;
470 }
471
472
473
474
475
476
477 for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
478 sn_pci_provider[i] = &sn_pci_default_provider;
479
480 pcibr_init_provider();
481 tioca_init_provider();
482 tioce_init_provider();
483
484
485
486
487 ia64_max_iommu_merge_mask = ~PAGE_MASK;
488
489 sn_irq_lh_init();
490 INIT_LIST_HEAD(&sn_sysdata_list);
491 sn_init_cpei_timer();
492
493#ifdef CONFIG_PROC_FS
494 register_sn_procfs();
495#endif
496
497 {
498 struct acpi_table_header *header;
499 (void)acpi_get_table(ACPI_SIG_DSDT, 1, &header);
500 printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
501 header->oem_revision);
502 }
503 if (SN_ACPI_BASE_SUPPORT())
504 sn_io_acpi_init();
505 else
506 sn_io_init();
507 return 0;
508}
509
510arch_initcall(sn_io_early_init);
511
512
513
514
515
516int __init
517sn_io_late_init(void)
518{
519 struct pci_bus *bus;
520 struct pcibus_bussoft *bussoft;
521 cnodeid_t cnode;
522 nasid_t nasid;
523 cnodeid_t near_cnode;
524
525 if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
526 return 0;
527
528
529
530
531
532
533 bus = NULL;
534 while ((bus = pci_find_next_bus(bus)) != NULL) {
535 bussoft = SN_PCIBUS_BUSSOFT(bus);
536 nasid = NASID_GET(bussoft->bs_base);
537 cnode = nasid_to_cnodeid(nasid);
538 if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) ||
539 (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE) ||
540 (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC)) {
541
542 int e = sn_hwperf_get_nearest_node(cnode, NULL,
543 &near_cnode);
544 if (e < 0) {
545 near_cnode = (cnodeid_t)-1;
546 printk(KERN_WARNING "sn_io_late_init: failed "
547 "to find near node with CPUs for "
548 "node %d, err=%d\n", cnode, e);
549 }
550 PCI_CONTROLLER(bus)->node = near_cnode;
551 }
552 }
553
554 sn_ioif_inited = 1;
555
556 return 0;
557}
558
559fs_initcall(sn_io_late_init);
560
561EXPORT_SYMBOL(sn_pci_unfixup_slot);
562EXPORT_SYMBOL(sn_bus_store_sysdata);
563EXPORT_SYMBOL(sn_bus_free_sysdata);
564EXPORT_SYMBOL(sn_generate_path);
565
566