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-rw-r--r--arch/ia64/sn/kernel/io_init.c630
1 files changed, 101 insertions, 529 deletions
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index dc09a6a28a37..990224a44121 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -3,103 +3,28 @@
3 * License. See the file "COPYING" in the main directory of this archive 3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details. 4 * for more details.
5 * 5 *
6 * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved. 6 * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
7 */ 7 */
8 8
9#include <linux/bootmem.h>
10#include <linux/nodemask.h>
11#include <asm/sn/types.h> 9#include <asm/sn/types.h>
12#include <asm/sn/addrs.h> 10#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> 11#include <asm/sn/io.h>
16#include <asm/sn/l1.h>
17#include <asm/sn/module.h> 12#include <asm/sn/module.h>
18#include <asm/sn/pcibr_provider.h> 13#include <asm/sn/intr.h>
19#include <asm/sn/pcibus_provider_defs.h> 14#include <asm/sn/pcibus_provider_defs.h>
20#include <asm/sn/pcidev.h> 15#include <asm/sn/pcidev.h>
21#include <asm/sn/simulator.h>
22#include <asm/sn/sn_sal.h> 16#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" 17#include "xtalk/hubdev.h"
26#include "xtalk/xwidgetdev.h"
27
28
29extern void sn_init_cpei_timer(void);
30extern void register_sn_procfs(void);
31
32static struct list_head sn_sysdata_list;
33
34/* sysdata list struct */
35struct sysdata_el {
36 struct list_head entry;
37 void *sysdata;
38};
39
40struct slab_info {
41 struct hubdev_info hubdev;
42};
43
44struct brick {
45 moduleid_t id; /* Module ID of this module */
46 struct slab_info slab_info[MAX_SLABS + 1];
47};
48
49int sn_ioif_inited; /* SN I/O infrastructure initialized? */
50
51struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
52
53static int max_segment_number; /* Default highest segment number */
54static int max_pcibus_number = 255; /* Default highest pci bus number */
55 18
56/* 19/*
57 * Hooks and struct for unsupported pci providers 20 * The code in this file will only be executed when running with
21 * a PROM that does _not_ have base ACPI IO support.
22 * (i.e., SN_ACPI_BASE_SUPPORT() == 0)
58 */ 23 */
59 24
60static dma_addr_t 25static int max_segment_number; /* Default highest segment number */
61sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type) 26static int max_pcibus_number = 255; /* Default highest pci bus number */
62{
63 return 0;
64}
65
66static void
67sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
68{
69 return;
70}
71
72static void *
73sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
74{
75 return NULL;
76}
77
78static struct sn_pcibus_provider sn_pci_default_provider = {
79 .dma_map = sn_default_pci_map,
80 .dma_map_consistent = sn_default_pci_map,
81 .dma_unmap = sn_default_pci_unmap,
82 .bus_fixup = sn_default_pci_bus_fixup,
83};
84
85/*
86 * Retrieve the DMA Flush List given nasid, widget, and device.
87 * This list is needed to implement the WAR - Flush DMA data on PIO Reads.
88 */
89static inline u64
90sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
91 u64 address)
92{
93 struct ia64_sal_retval ret_stuff;
94 ret_stuff.status = 0;
95 ret_stuff.v0 = 0;
96 27
97 SAL_CALL_NOLOCK(ret_stuff,
98 (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
99 (u64) nasid, (u64) widget_num,
100 (u64) device_num, (u64) address, 0, 0, 0);
101 return ret_stuff.status;
102}
103 28
104/* 29/*
105 * Retrieve the hub device info structure for the given nasid. 30 * Retrieve the hub device info structure for the given nasid.
@@ -131,93 +56,20 @@ static inline u64 sal_get_pcibus_info(u64 segment, u64 busnum, u64 address)
131 return ret_stuff.v0; 56 return ret_stuff.v0;
132} 57}
133 58
134/*
135 * Retrieve the pci device information given the bus and device|function number.
136 */
137static inline u64
138sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
139 u64 sn_irq_info)
140{
141 struct ia64_sal_retval ret_stuff;
142 ret_stuff.status = 0;
143 ret_stuff.v0 = 0;
144
145 SAL_CALL_NOLOCK(ret_stuff,
146 (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
147 (u64) segment, (u64) bus_number, (u64) devfn,
148 (u64) pci_dev,
149 sn_irq_info, 0, 0);
150 return ret_stuff.v0;
151}
152
153/*
154 * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
155 * device.
156 */
157inline struct pcidev_info *
158sn_pcidev_info_get(struct pci_dev *dev)
159{
160 struct pcidev_info *pcidev;
161
162 list_for_each_entry(pcidev,
163 &(SN_PCI_CONTROLLER(dev)->pcidev_info), pdi_list) {
164 if (pcidev->pdi_linux_pcidev == dev) {
165 return pcidev;
166 }
167 }
168 return NULL;
169}
170
171/* Older PROM flush WAR
172 *
173 * 01/16/06 -- This war will be in place until a new official PROM is released.
174 * Additionally note that the struct sn_flush_device_war also has to be
175 * removed from arch/ia64/sn/include/xtalk/hubdev.h
176 */
177static u8 war_implemented = 0;
178
179static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
180 struct sn_flush_device_common *common)
181{
182 struct sn_flush_device_war *war_list;
183 struct sn_flush_device_war *dev_entry;
184 struct ia64_sal_retval isrv = {0,0,0,0};
185
186 if (!war_implemented) {
187 printk(KERN_WARNING "PROM version < 4.50 -- implementing old "
188 "PROM flush WAR\n");
189 war_implemented = 1;
190 }
191
192 war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
193 if (!war_list)
194 BUG();
195
196 SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
197 nasid, widget, __pa(war_list), 0, 0, 0 ,0);
198 if (isrv.status)
199 panic("sn_device_fixup_war failed: %s\n",
200 ia64_sal_strerror(isrv.status));
201
202 dev_entry = war_list + device;
203 memcpy(common,dev_entry, sizeof(*common));
204 kfree(war_list);
205
206 return isrv.status;
207}
208 59
209/* 60/*
210 * sn_fixup_ionodes() - This routine initializes the HUB data strcuture for 61 * sn_fixup_ionodes() - This routine initializes the HUB data structure for
211 * each node in the system. 62 * each node in the system. This function is only
63 * executed when running with a non-ACPI capable PROM.
212 */ 64 */
213static void __init sn_fixup_ionodes(void) 65static void __init sn_fixup_ionodes(void)
214{ 66{
215 struct sn_flush_device_kernel *sn_flush_device_kernel; 67
216 struct sn_flush_device_kernel *dev_entry;
217 struct hubdev_info *hubdev; 68 struct hubdev_info *hubdev;
218 u64 status; 69 u64 status;
219 u64 nasid; 70 u64 nasid;
220 int i, widget, device, size; 71 int i;
72 extern void sn_common_hubdev_init(struct hubdev_info *);
221 73
222 /* 74 /*
223 * Get SGI Specific HUB chipset information. 75 * Get SGI Specific HUB chipset information.
@@ -240,70 +92,47 @@ static void __init sn_fixup_ionodes(void)
240 max_segment_number = hubdev->max_segment_number; 92 max_segment_number = hubdev->max_segment_number;
241 max_pcibus_number = hubdev->max_pcibus_number; 93 max_pcibus_number = hubdev->max_pcibus_number;
242 } 94 }
95 sn_common_hubdev_init(hubdev);
96 }
97}
243 98
244 /* Attach the error interrupt handlers */ 99/*
245 if (nasid & 1) 100 * sn_pci_legacy_window_fixup - Create PCI controller windows for
246 ice_error_init(hubdev); 101 * legacy IO and MEM space. This needs to
247 else 102 * be done here, as the PROM does not have
248 hub_error_init(hubdev); 103 * ACPI support defining the root buses
249 104 * and their resources (_CRS),
250 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) 105 */
251 hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev; 106static void
252 107sn_legacy_pci_window_fixup(struct pci_controller *controller,
253 if (!hubdev->hdi_flush_nasid_list.widget_p) 108 u64 legacy_io, u64 legacy_mem)
254 continue; 109{
255 110 controller->window = kcalloc(2, sizeof(struct pci_window),
256 size = (HUB_WIDGET_ID_MAX + 1) * 111 GFP_KERNEL);
257 sizeof(struct sn_flush_device_kernel *); 112 if (controller->window == NULL)
258 hubdev->hdi_flush_nasid_list.widget_p =
259 kzalloc(size, GFP_KERNEL);
260 if (!hubdev->hdi_flush_nasid_list.widget_p)
261 BUG(); 113 BUG();
262 114 controller->window[0].offset = legacy_io;
263 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) { 115 controller->window[0].resource.name = "legacy_io";
264 size = DEV_PER_WIDGET * 116 controller->window[0].resource.flags = IORESOURCE_IO;
265 sizeof(struct sn_flush_device_kernel); 117 controller->window[0].resource.start = legacy_io;
266 sn_flush_device_kernel = kzalloc(size, GFP_KERNEL); 118 controller->window[0].resource.end =
267 if (!sn_flush_device_kernel) 119 controller->window[0].resource.start + 0xffff;
268 BUG(); 120 controller->window[0].resource.parent = &ioport_resource;
269 121 controller->window[1].offset = legacy_mem;
270 dev_entry = sn_flush_device_kernel; 122 controller->window[1].resource.name = "legacy_mem";
271 for (device = 0; device < DEV_PER_WIDGET; 123 controller->window[1].resource.flags = IORESOURCE_MEM;
272 device++,dev_entry++) { 124 controller->window[1].resource.start = legacy_mem;
273 size = sizeof(struct sn_flush_device_common); 125 controller->window[1].resource.end =
274 dev_entry->common = kzalloc(size, GFP_KERNEL); 126 controller->window[1].resource.start + (1024 * 1024) - 1;
275 if (!dev_entry->common) 127 controller->window[1].resource.parent = &iomem_resource;
276 BUG(); 128 controller->windows = 2;
277
278 if (sn_prom_feature_available(
279 PRF_DEVICE_FLUSH_LIST))
280 status = sal_get_device_dmaflush_list(
281 nasid, widget, device,
282 (u64)(dev_entry->common));
283 else
284 status = sn_device_fixup_war(nasid,
285 widget, device,
286 dev_entry->common);
287 if (status != SALRET_OK)
288 panic("SAL call failed: %s\n",
289 ia64_sal_strerror(status));
290
291 spin_lock_init(&dev_entry->sfdl_flush_lock);
292 }
293
294 if (sn_flush_device_kernel)
295 hubdev->hdi_flush_nasid_list.widget_p[widget] =
296 sn_flush_device_kernel;
297 }
298 }
299} 129}
300 130
301/* 131/*
302 * sn_pci_window_fixup() - Create a pci_window for each device resource. 132 * sn_pci_window_fixup() - Create a pci_window for each device resource.
303 * Until ACPI support is added, we need this code 133 * It will setup pci_windows for use by
304 * to setup pci_windows for use by 134 * pcibios_bus_to_resource(), pcibios_resource_to_bus(),
305 * pcibios_bus_to_resource(), 135 * etc.
306 * pcibios_resource_to_bus(), etc.
307 */ 136 */
308static void 137static void
309sn_pci_window_fixup(struct pci_dev *dev, unsigned int count, 138sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
@@ -342,60 +171,22 @@ sn_pci_window_fixup(struct pci_dev *dev, unsigned int count,
342 controller->window = new_window; 171 controller->window = new_window;
343} 172}
344 173
345void sn_pci_unfixup_slot(struct pci_dev *dev)
346{
347 struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
348
349 sn_irq_unfixup(dev);
350 pci_dev_put(host_pci_dev);
351 pci_dev_put(dev);
352}
353
354/* 174/*
355 * sn_pci_fixup_slot() - This routine sets up a slot's resources 175 * sn_more_slot_fixup() - We are not running with an ACPI capable PROM,
356 * consistent with the Linux PCI abstraction layer. Resources acquired 176 * and need to convert the pci_dev->resource
357 * from our PCI provider include PIO maps to BAR space and interrupt 177 * 'start' and 'end' addresses to mapped addresses,
358 * objects. 178 * and setup the pci_controller->window array entries.
359 */ 179 */
360void sn_pci_fixup_slot(struct pci_dev *dev) 180void
181sn_more_slot_fixup(struct pci_dev *dev, struct pcidev_info *pcidev_info)
361{ 182{
362 unsigned int count = 0; 183 unsigned int count = 0;
363 int idx; 184 int idx;
364 int segment = pci_domain_nr(dev->bus);
365 int status = 0;
366 struct pcibus_bussoft *bs;
367 struct pci_bus *host_pci_bus;
368 struct pci_dev *host_pci_dev;
369 struct pcidev_info *pcidev_info;
370 s64 pci_addrs[PCI_ROM_RESOURCE + 1]; 185 s64 pci_addrs[PCI_ROM_RESOURCE + 1];
371 struct sn_irq_info *sn_irq_info; 186 unsigned long addr, end, size, start;
372 unsigned long size;
373 unsigned int bus_no, devfn;
374
375 pci_dev_get(dev); /* for the sysdata pointer */
376 pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
377 if (!pcidev_info)
378 BUG(); /* Cannot afford to run out of memory */
379
380 sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
381 if (!sn_irq_info)
382 BUG(); /* Cannot afford to run out of memory */
383
384 /* Call to retrieve pci device information needed by kernel. */
385 status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
386 dev->devfn,
387 (u64) __pa(pcidev_info),
388 (u64) __pa(sn_irq_info));
389 if (status)
390 BUG(); /* Cannot get platform pci device information */
391
392 /* Add pcidev_info to list in sn_pci_controller struct */
393 list_add_tail(&pcidev_info->pdi_list,
394 &(SN_PCI_CONTROLLER(dev->bus)->pcidev_info));
395 187
396 /* Copy over PIO Mapped Addresses */ 188 /* Copy over PIO Mapped Addresses */
397 for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) { 189 for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
398 unsigned long start, end, addr;
399 190
400 if (!pcidev_info->pdi_pio_mapped_addr[idx]) { 191 if (!pcidev_info->pdi_pio_mapped_addr[idx]) {
401 pci_addrs[idx] = -1; 192 pci_addrs[idx] = -1;
@@ -425,54 +216,19 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
425 */ 216 */
426 if (count > 0) 217 if (count > 0)
427 sn_pci_window_fixup(dev, count, pci_addrs); 218 sn_pci_window_fixup(dev, count, pci_addrs);
428
429 /*
430 * Using the PROMs values for the PCI host bus, get the Linux
431 * PCI host_pci_dev struct and set up host bus linkages
432 */
433
434 bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
435 devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
436 host_pci_bus = pci_find_bus(segment, bus_no);
437 host_pci_dev = pci_get_slot(host_pci_bus, devfn);
438
439 pcidev_info->host_pci_dev = host_pci_dev;
440 pcidev_info->pdi_linux_pcidev = dev;
441 pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
442 bs = SN_PCIBUS_BUSSOFT(dev->bus);
443 pcidev_info->pdi_pcibus_info = bs;
444
445 if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
446 SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
447 } else {
448 SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
449 }
450
451 /* Only set up IRQ stuff if this device has a host bus context */
452 if (bs && sn_irq_info->irq_irq) {
453 pcidev_info->pdi_sn_irq_info = sn_irq_info;
454 dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
455 sn_irq_fixup(dev, sn_irq_info);
456 } else {
457 pcidev_info->pdi_sn_irq_info = NULL;
458 kfree(sn_irq_info);
459 }
460} 219}
461 220
462/* 221/*
463 * sn_pci_controller_fixup() - This routine sets up a bus's resources 222 * sn_pci_controller_fixup() - This routine sets up a bus's resources
464 * consistent with the Linux PCI abstraction layer. 223 * consistent with the Linux PCI abstraction layer.
465 */ 224 */
466void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus) 225static void
226sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
467{ 227{
468 int status; 228 s64 status = 0;
469 int nasid, cnode;
470 struct pci_controller *controller; 229 struct pci_controller *controller;
471 struct sn_pci_controller *sn_controller;
472 struct pcibus_bussoft *prom_bussoft_ptr; 230 struct pcibus_bussoft *prom_bussoft_ptr;
473 struct hubdev_info *hubdev_info; 231
474 void *provider_soft;
475 struct sn_pcibus_provider *provider;
476 232
477 status = sal_get_pcibus_info((u64) segment, (u64) busnum, 233 status = sal_get_pcibus_info((u64) segment, (u64) busnum,
478 (u64) ia64_tpa(&prom_bussoft_ptr)); 234 (u64) ia64_tpa(&prom_bussoft_ptr));
@@ -480,261 +236,77 @@ void sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
480 return; /*bus # does not exist */ 236 return; /*bus # does not exist */
481 prom_bussoft_ptr = __va(prom_bussoft_ptr); 237 prom_bussoft_ptr = __va(prom_bussoft_ptr);
482 238
483 /* Allocate a sn_pci_controller, which has a pci_controller struct 239 controller = kzalloc(sizeof(*controller), GFP_KERNEL);
484 * as the first member. 240 if (!controller)
485 */
486 sn_controller = kzalloc(sizeof(struct sn_pci_controller), GFP_KERNEL);
487 if (!sn_controller)
488 BUG(); 241 BUG();
489 INIT_LIST_HEAD(&sn_controller->pcidev_info);
490 controller = &sn_controller->pci_controller;
491 controller->segment = segment; 242 controller->segment = segment;
492 243
493 if (bus == NULL) {
494 bus = pci_scan_bus(busnum, &pci_root_ops, controller);
495 if (bus == NULL)
496 goto error_return; /* error, or bus already scanned */
497 bus->sysdata = NULL;
498 }
499
500 if (bus->sysdata)
501 goto error_return; /* sysdata already alloc'd */
502
503 /* 244 /*
504 * Per-provider fixup. Copies the contents from prom to local 245 * Temporarily save the prom_bussoft_ptr for use by sn_bus_fixup().
505 * area and links SN_PCIBUS_BUSSOFT(). 246 * (platform_data will be overwritten later in sn_common_bus_fixup())
506 */ 247 */
248 controller->platform_data = prom_bussoft_ptr;
507 249
508 if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) 250 bus = pci_scan_bus(busnum, &pci_root_ops, controller);
509 goto error_return; /* unsupported asic type */ 251 if (bus == NULL)
510 252 goto error_return; /* error, or bus already scanned */
511 if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
512 goto error_return; /* no further fixup necessary */
513
514 provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
515 if (provider == NULL)
516 goto error_return; /* no provider registerd for this asic */
517 253
518 bus->sysdata = controller; 254 bus->sysdata = controller;
519 if (provider->bus_fixup)
520 provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr, controller);
521 else
522 provider_soft = NULL;
523
524 if (provider_soft == NULL) {
525 /* fixup failed or not applicable */
526 bus->sysdata = NULL;
527 goto error_return;
528 }
529
530 /*
531 * Setup pci_windows for legacy IO and MEM space.
532 * (Temporary until ACPI support is in place.)
533 */
534 controller->window = kcalloc(2, sizeof(struct pci_window), GFP_KERNEL);
535 if (controller->window == NULL)
536 BUG();
537 controller->window[0].offset = prom_bussoft_ptr->bs_legacy_io;
538 controller->window[0].resource.name = "legacy_io";
539 controller->window[0].resource.flags = IORESOURCE_IO;
540 controller->window[0].resource.start = prom_bussoft_ptr->bs_legacy_io;
541 controller->window[0].resource.end =
542 controller->window[0].resource.start + 0xffff;
543 controller->window[0].resource.parent = &ioport_resource;
544 controller->window[1].offset = prom_bussoft_ptr->bs_legacy_mem;
545 controller->window[1].resource.name = "legacy_mem";
546 controller->window[1].resource.flags = IORESOURCE_MEM;
547 controller->window[1].resource.start = prom_bussoft_ptr->bs_legacy_mem;
548 controller->window[1].resource.end =
549 controller->window[1].resource.start + (1024 * 1024) - 1;
550 controller->window[1].resource.parent = &iomem_resource;
551 controller->windows = 2;
552
553 /*
554 * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
555 * after this point.
556 */
557
558 PCI_CONTROLLER(bus)->platform_data = provider_soft;
559 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
560 cnode = nasid_to_cnodeid(nasid);
561 hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
562 SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
563 &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
564 255
565 /*
566 * If the node information we obtained during the fixup phase is invalid
567 * then set controller->node to -1 (undetermined)
568 */
569 if (controller->node >= num_online_nodes()) {
570 struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
571
572 printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
573 "L_IO=%lx L_MEM=%lx BASE=%lx\n",
574 b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
575 b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
576 printk(KERN_WARNING "on node %d but only %d nodes online."
577 "Association set to undetermined.\n",
578 controller->node, num_online_nodes());
579 controller->node = -1;
580 }
581 return; 256 return;
582 257
583error_return: 258error_return:
584 259
585 kfree(sn_controller); 260 kfree(controller);
586 return; 261 return;
587} 262}
588 263
589void sn_bus_store_sysdata(struct pci_dev *dev) 264/*
265 * sn_bus_fixup
266 */
267void
268sn_bus_fixup(struct pci_bus *bus)
590{ 269{
591 struct sysdata_el *element; 270 struct pci_dev *pci_dev = NULL;
592 271 struct pcibus_bussoft *prom_bussoft_ptr;
593 element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL); 272 extern void sn_common_bus_fixup(struct pci_bus *,
594 if (!element) { 273 struct pcibus_bussoft *);
595 dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__); 274
596 return; 275
597 } 276 if (!bus->parent) { /* If root bus */
598 element->sysdata = SN_PCIDEV_INFO(dev); 277 prom_bussoft_ptr = PCI_CONTROLLER(bus)->platform_data;
599 list_add(&element->entry, &sn_sysdata_list); 278 if (prom_bussoft_ptr == NULL) {
600} 279 printk(KERN_ERR
280 "sn_bus_fixup: 0x%04x:0x%02x Unable to "
281 "obtain prom_bussoft_ptr\n",
282 pci_domain_nr(bus), bus->number);
283 return;
284 }
285 sn_common_bus_fixup(bus, prom_bussoft_ptr);
286 sn_legacy_pci_window_fixup(PCI_CONTROLLER(bus),
287 prom_bussoft_ptr->bs_legacy_io,
288 prom_bussoft_ptr->bs_legacy_mem);
289 }
290 list_for_each_entry(pci_dev, &bus->devices, bus_list) {
291 sn_pci_fixup_slot(pci_dev);
292 }
601 293
602void sn_bus_free_sysdata(void)
603{
604 struct sysdata_el *element;
605 struct list_head *list, *safe;
606
607 list_for_each_safe(list, safe, &sn_sysdata_list) {
608 element = list_entry(list, struct sysdata_el, entry);
609 list_del(&element->entry);
610 list_del(&(((struct pcidev_info *)
611 (element->sysdata))->pdi_list));
612 kfree(element->sysdata);
613 kfree(element);
614 }
615 return;
616} 294}
617 295
618/* 296/*
619 * Ugly hack to get PCI setup until we have a proper ACPI namespace. 297 * sn_io_init - PROM does not have ACPI support to define nodes or root buses,
298 * so we need to do things the hard way, including initiating the
299 * bus scanning ourselves.
620 */ 300 */
621 301
622#define PCI_BUSES_TO_SCAN 256 302void __init sn_io_init(void)
623
624static int __init sn_pci_init(void)
625{ 303{
626 int i, j; 304 int i, j;
627 struct pci_dev *pci_dev = NULL;
628
629 if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
630 return 0;
631
632 /*
633 * prime sn_pci_provider[]. Individial provider init routines will
634 * override their respective default entries.
635 */
636
637 for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
638 sn_pci_provider[i] = &sn_pci_default_provider;
639 305
640 pcibr_init_provider();
641 tioca_init_provider();
642 tioce_init_provider();
643
644 /*
645 * This is needed to avoid bounce limit checks in the blk layer
646 */
647 ia64_max_iommu_merge_mask = ~PAGE_MASK;
648 sn_fixup_ionodes(); 306 sn_fixup_ionodes();
649 sn_irq_lh_init();
650 INIT_LIST_HEAD(&sn_sysdata_list);
651 sn_init_cpei_timer();
652
653#ifdef CONFIG_PROC_FS
654 register_sn_procfs();
655#endif
656 307
657 /* busses are not known yet ... */ 308 /* busses are not known yet ... */
658 for (i = 0; i <= max_segment_number; i++) 309 for (i = 0; i <= max_segment_number; i++)
659 for (j = 0; j <= max_pcibus_number; j++) 310 for (j = 0; j <= max_pcibus_number; j++)
660 sn_pci_controller_fixup(i, j, NULL); 311 sn_pci_controller_fixup(i, j, NULL);
661
662 /*
663 * Generic Linux PCI Layer has created the pci_bus and pci_dev
664 * structures - time for us to add our SN PLatform specific
665 * information.
666 */
667
668 while ((pci_dev =
669 pci_get_device(PCI_ANY_ID, PCI_ANY_ID, pci_dev)) != NULL)
670 sn_pci_fixup_slot(pci_dev);
671
672 sn_ioif_inited = 1; /* sn I/O infrastructure now initialized */
673
674 return 0;
675}
676
677/*
678 * hubdev_init_node() - Creates the HUB data structure and link them to it's
679 * own NODE specific data area.
680 */
681void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
682{
683 struct hubdev_info *hubdev_info;
684 int size;
685 pg_data_t *pg;
686
687 size = sizeof(struct hubdev_info);
688
689 if (node >= num_online_nodes()) /* Headless/memless IO nodes */
690 pg = NODE_DATA(0);
691 else
692 pg = NODE_DATA(node);
693
694 hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
695
696 npda->pdinfo = (void *)hubdev_info;
697} 312}
698
699geoid_t
700cnodeid_get_geoid(cnodeid_t cnode)
701{
702 struct hubdev_info *hubdev;
703
704 hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
705 return hubdev->hdi_geoid;
706}
707
708void sn_generate_path(struct pci_bus *pci_bus, char *address)
709{
710 nasid_t nasid;
711 cnodeid_t cnode;
712 geoid_t geoid;
713 moduleid_t moduleid;
714 u16 bricktype;
715
716 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
717 cnode = nasid_to_cnodeid(nasid);
718 geoid = cnodeid_get_geoid(cnode);
719 moduleid = geo_module(geoid);
720
721 sprintf(address, "module_%c%c%c%c%.2d",
722 '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
723 '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
724 '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
725 MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
726
727 /* Tollhouse requires slot id to be displayed */
728 bricktype = MODULE_GET_BTYPE(moduleid);
729 if ((bricktype == L1_BRICKTYPE_191010) ||
730 (bricktype == L1_BRICKTYPE_1932))
731 sprintf(address, "%s^%d", address, geo_slot(geoid));
732}
733
734subsys_initcall(sn_pci_init);
735EXPORT_SYMBOL(sn_pci_fixup_slot);
736EXPORT_SYMBOL(sn_pci_unfixup_slot);
737EXPORT_SYMBOL(sn_pci_controller_fixup);
738EXPORT_SYMBOL(sn_bus_store_sysdata);
739EXPORT_SYMBOL(sn_bus_free_sysdata);
740EXPORT_SYMBOL(sn_generate_path);
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-20 04:56:41 -0500