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authorJohn Keller <jpk@sgi.com>2006-10-04 17:49:25 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-12-01 17:36:57 -0500
commit8ea6091f500162e97687d7acf925f84202066b8d (patch)
treec2ee3b467cce2869dc84e1180cc9d8034fdeee3e /arch/ia64/sn
parente08cf02f32dff732b2be0c9755cf5eb676f88e48 (diff)
Altix: Add initial ACPI IO support
First phase in introducing ACPI support to SN. In this phase, when running with an ACPI capable PROM, the DSDT will define the root busses and all SN nodes (SGIHUB, SGITIO). An ACPI bus driver will be registered for the node devices, with the acpi_pci_root_driver being used for the root busses. An ACPI vendor descriptor is now used to pass platform specific information for both nodes and busses, eliminating the need for the current SAL calls. Also, with ACPI support, SN fixup code is no longer needed to initiate the PCI bus scans, as the acpi_pci_root_driver does that. However, to maintain backward compatibility with non-ACPI capable PROMs, none of the current 'fixup' code can been deleted, though much restructuring has been done. For example, the bulk of the code in io_common.c is relocated code that is now common regardless of what PROM is running, while io_acpi_init.c and io_init.c contain routines specific to an ACPI or non ACPI capable PROM respectively. A new pci bus fixup platform vector has been created to provide a hook for invoking platform specific bus fixup from pcibios_fixup_bus(). The size of io_space[] has been increased to support systems with large IO configurations. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/ia64/sn')
-rw-r--r--arch/ia64/sn/kernel/Makefile5
-rw-r--r--arch/ia64/sn/kernel/io_acpi_init.c198
-rw-r--r--arch/ia64/sn/kernel/io_common.c612
-rw-r--r--arch/ia64/sn/kernel/io_init.c630
-rw-r--r--arch/ia64/sn/kernel/iomv.c11
-rw-r--r--arch/ia64/sn/kernel/setup.c18
-rw-r--r--arch/ia64/sn/kernel/tiocx.c2
-rw-r--r--arch/ia64/sn/pci/pcibr/pcibr_provider.c17
-rw-r--r--arch/ia64/sn/pci/tioce_provider.c18
9 files changed, 942 insertions, 569 deletions
diff --git a/arch/ia64/sn/kernel/Makefile b/arch/ia64/sn/kernel/Makefile
index 2d78f34dd763..0a59371d3475 100644
--- a/arch/ia64/sn/kernel/Makefile
+++ b/arch/ia64/sn/kernel/Makefile
@@ -4,13 +4,14 @@
4# License. See the file "COPYING" in the main directory of this archive 4# License. See the file "COPYING" in the main directory of this archive
5# for more details. 5# for more details.
6# 6#
7# Copyright (C) 1999,2001-2005 Silicon Graphics, Inc. All Rights Reserved. 7# Copyright (C) 1999,2001-2006 Silicon Graphics, Inc. All Rights Reserved.
8# 8#
9 9
10CPPFLAGS += -I$(srctree)/arch/ia64/sn/include 10CPPFLAGS += -I$(srctree)/arch/ia64/sn/include
11 11
12obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \ 12obj-y += setup.o bte.o bte_error.o irq.o mca.o idle.o \
13 huberror.o io_init.o iomv.o klconflib.o pio_phys.o \ 13 huberror.o io_acpi_init.o io_common.o \
14 io_init.o iomv.o klconflib.o pio_phys.o \
14 sn2/ 15 sn2/
15obj-$(CONFIG_IA64_GENERIC) += machvec.o 16obj-$(CONFIG_IA64_GENERIC) += machvec.o
16obj-$(CONFIG_SGI_TIOCX) += tiocx.o 17obj-$(CONFIG_SGI_TIOCX) += tiocx.o
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
new file mode 100644
index 000000000000..a9dc36901b19
--- /dev/null
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -0,0 +1,198 @@
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 <asm/sn/types.h>
10#include <asm/sn/addrs.h>
11#include <asm/sn/pcidev.h>
12#include <asm/sn/pcibus_provider_defs.h>
13#include <asm/sn/sn_sal.h>
14#include "xtalk/hubdev.h"
15#include <linux/acpi.h>
16
17
18/*
19 * The code in this file will only be executed when running with
20 * a PROM that has ACPI IO support. (i.e., SN_ACPI_BASE_SUPPORT() == 1)
21 */
22
23
24/*
25 * This value must match the UUID the PROM uses
26 * (io/acpi/defblk.c) when building a vendor descriptor.
27 */
28struct acpi_vendor_uuid sn_uuid = {
29 .subtype = 0,
30 .data = { 0x2c, 0xc6, 0xa6, 0xfe, 0x9c, 0x44, 0xda, 0x11,
31 0xa2, 0x7c, 0x08, 0x00, 0x69, 0x13, 0xea, 0x51 },
32};
33
34/*
35 * Perform the early IO init in PROM.
36 */
37static s64
38sal_ioif_init(u64 *result)
39{
40 struct ia64_sal_retval isrv = {0,0,0,0};
41
42 SAL_CALL_NOLOCK(isrv,
43 SN_SAL_IOIF_INIT, 0, 0, 0, 0, 0, 0, 0);
44 *result = isrv.v0;
45 return isrv.status;
46}
47
48/*
49 * sn_hubdev_add - The 'add' function of the acpi_sn_hubdev_driver.
50 * Called for every "SGIHUB" or "SGITIO" device defined
51 * in the ACPI namespace.
52 */
53static int __init
54sn_hubdev_add(struct acpi_device *device)
55{
56 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
57 u64 addr;
58 struct hubdev_info *hubdev;
59 struct hubdev_info *hubdev_ptr;
60 int i;
61 u64 nasid;
62 struct acpi_resource *resource;
63 int ret = 0;
64 acpi_status status;
65 struct acpi_resource_vendor_typed *vendor;
66 extern void sn_common_hubdev_init(struct hubdev_info *);
67
68 status = acpi_get_vendor_resource(device->handle, METHOD_NAME__CRS,
69 &sn_uuid, &buffer);
70 if (ACPI_FAILURE(status)) {
71 printk(KERN_ERR
72 "sn_hubdev_add: acpi_get_vendor_resource() failed: %d\n",
73 status);
74 return 1;
75 }
76
77 resource = buffer.pointer;
78 vendor = &resource->data.vendor_typed;
79 if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
80 sizeof(struct hubdev_info *)) {
81 printk(KERN_ERR
82 "sn_hubdev_add: Invalid vendor data length: %d\n",
83 vendor->byte_length);
84 ret = 1;
85 goto exit;
86 }
87
88 memcpy(&addr, vendor->byte_data, sizeof(struct hubdev_info *));
89 hubdev_ptr = __va((struct hubdev_info *) addr);
90
91 nasid = hubdev_ptr->hdi_nasid;
92 i = nasid_to_cnodeid(nasid);
93 hubdev = (struct hubdev_info *)(NODEPDA(i)->pdinfo);
94 *hubdev = *hubdev_ptr;
95 sn_common_hubdev_init(hubdev);
96
97exit:
98 kfree(buffer.pointer);
99 return ret;
100}
101
102/*
103 * sn_get_bussoft_ptr() - The pcibus_bussoft pointer is found in
104 * the ACPI Vendor resource for this bus.
105 */
106static struct pcibus_bussoft *
107sn_get_bussoft_ptr(struct pci_bus *bus)
108{
109 u64 addr;
110 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
111 acpi_handle handle;
112 struct pcibus_bussoft *prom_bussoft_ptr;
113 struct acpi_resource *resource;
114 acpi_status status;
115 struct acpi_resource_vendor_typed *vendor;
116
117
118 handle = PCI_CONTROLLER(bus)->acpi_handle;
119 status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
120 &sn_uuid, &buffer);
121 if (ACPI_FAILURE(status)) {
122 printk(KERN_ERR "get_acpi_pcibus_ptr: "
123 "get_acpi_bussoft_info() failed: %d\n",
124 status);
125 return NULL;
126 }
127 resource = buffer.pointer;
128 vendor = &resource->data.vendor_typed;
129
130 if ((vendor->byte_length - sizeof(struct acpi_vendor_uuid)) !=
131 sizeof(struct pcibus_bussoft *)) {
132 printk(KERN_ERR
133 "get_acpi_bussoft_ptr: Invalid vendor data "
134 "length %d\n", vendor->byte_length);
135 kfree(buffer.pointer);
136 return NULL;
137 }
138 memcpy(&addr, vendor->byte_data, sizeof(struct pcibus_bussoft *));
139 prom_bussoft_ptr = __va((struct pcibus_bussoft *) addr);
140 kfree(buffer.pointer);
141
142 return prom_bussoft_ptr;
143}
144
145/*
146 * sn_acpi_bus_fixup
147 */
148void
149sn_acpi_bus_fixup(struct pci_bus *bus)
150{
151 struct pci_dev *pci_dev = NULL;
152 struct pcibus_bussoft *prom_bussoft_ptr;
153 extern void sn_common_bus_fixup(struct pci_bus *,
154 struct pcibus_bussoft *);
155
156 if (!bus->parent) { /* If root bus */
157 prom_bussoft_ptr = sn_get_bussoft_ptr(bus);
158 if (prom_bussoft_ptr == NULL) {
159 printk(KERN_ERR
160 "sn_pci_fixup_bus: 0x%04x:0x%02x Unable to "
161 "obtain prom_bussoft_ptr\n",
162 pci_domain_nr(bus), bus->number);
163 return;
164 }
165 sn_common_bus_fixup(bus, prom_bussoft_ptr);
166 }
167 list_for_each_entry(pci_dev, &bus->devices, bus_list) {
168 sn_pci_fixup_slot(pci_dev);
169 }
170}
171
172static struct acpi_driver acpi_sn_hubdev_driver = {
173 .name = "SGI HUBDEV Driver",
174 .ids = "SGIHUB,SGITIO",
175 .ops = {
176 .add = sn_hubdev_add,
177 },
178};
179
180
181/*
182 * sn_io_acpi_init - PROM has ACPI support for IO, defining at a minimum the
183 * nodes and root buses in the DSDT. As a result, bus scanning
184 * will be initiated by the Linux ACPI code.
185 */
186
187void __init
188sn_io_acpi_init(void)
189{
190 u64 result;
191 s64 status;
192
193 acpi_bus_register_driver(&acpi_sn_hubdev_driver);
194 status = sal_ioif_init(&result);
195 if (status || result)
196 panic("sal_ioif_init failed: [%lx] %s\n",
197 status, ia64_sal_strerror(status));
198}
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
new file mode 100644
index 000000000000..12531de6754c
--- /dev/null
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -0,0 +1,612 @@
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>
28#include <asm/sn/acpi.h>
29
30extern void sn_init_cpei_timer(void);
31extern void register_sn_procfs(void);
32extern void sn_acpi_bus_fixup(struct pci_bus *);
33extern void sn_bus_fixup(struct pci_bus *);
34extern void sn_acpi_slot_fixup(struct pci_dev *, struct pcidev_info *);
35extern void sn_more_slot_fixup(struct pci_dev *, struct pcidev_info *);
36extern void sn_legacy_pci_window_fixup(struct pci_controller *, u64, u64);
37extern void sn_io_acpi_init(void);
38extern void sn_io_init(void);
39
40
41static struct list_head sn_sysdata_list;
42
43/* sysdata list struct */
44struct sysdata_el {
45 struct list_head entry;
46 void *sysdata;
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
53/*
54 * Hooks and struct for unsupported pci providers
55 */
56
57static dma_addr_t
58sn_default_pci_map(struct pci_dev *pdev, unsigned long paddr, size_t size, int type)
59{
60 return 0;
61}
62
63static void
64sn_default_pci_unmap(struct pci_dev *pdev, dma_addr_t addr, int direction)
65{
66 return;
67}
68
69static void *
70sn_default_pci_bus_fixup(struct pcibus_bussoft *soft, struct pci_controller *controller)
71{
72 return NULL;
73}
74
75static struct sn_pcibus_provider sn_pci_default_provider = {
76 .dma_map = sn_default_pci_map,
77 .dma_map_consistent = sn_default_pci_map,
78 .dma_unmap = sn_default_pci_unmap,
79 .bus_fixup = sn_default_pci_bus_fixup,
80};
81
82/*
83 * Retrieve the DMA Flush List given nasid, widget, and device.
84 * This list is needed to implement the WAR - Flush DMA data on PIO Reads.
85 */
86static inline u64
87sal_get_device_dmaflush_list(u64 nasid, u64 widget_num, u64 device_num,
88 u64 address)
89{
90 struct ia64_sal_retval ret_stuff;
91 ret_stuff.status = 0;
92 ret_stuff.v0 = 0;
93
94 SAL_CALL_NOLOCK(ret_stuff,
95 (u64) SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST,
96 (u64) nasid, (u64) widget_num,
97 (u64) device_num, (u64) address, 0, 0, 0);
98 return ret_stuff.status;
99}
100
101/*
102 * Retrieve the pci device information given the bus and device|function number.
103 */
104static inline u64
105sal_get_pcidev_info(u64 segment, u64 bus_number, u64 devfn, u64 pci_dev,
106 u64 sn_irq_info)
107{
108 struct ia64_sal_retval ret_stuff;
109 ret_stuff.status = 0;
110 ret_stuff.v0 = 0;
111
112 SAL_CALL_NOLOCK(ret_stuff,
113 (u64) SN_SAL_IOIF_GET_PCIDEV_INFO,
114 (u64) segment, (u64) bus_number, (u64) devfn,
115 (u64) pci_dev,
116 sn_irq_info, 0, 0);
117 return ret_stuff.v0;
118}
119
120/*
121 * sn_pcidev_info_get() - Retrieve the pcidev_info struct for the specified
122 * device.
123 */
124inline struct pcidev_info *
125sn_pcidev_info_get(struct pci_dev *dev)
126{
127 struct pcidev_info *pcidev;
128
129 list_for_each_entry(pcidev,
130 &(SN_PLATFORM_DATA(dev)->pcidev_info), pdi_list) {
131 if (pcidev->pdi_linux_pcidev == dev)
132 return pcidev;
133 }
134 return NULL;
135}
136
137/* Older PROM flush WAR
138 *
139 * 01/16/06 -- This war will be in place until a new official PROM is released.
140 * Additionally note that the struct sn_flush_device_war also has to be
141 * removed from arch/ia64/sn/include/xtalk/hubdev.h
142 */
143static u8 war_implemented = 0;
144
145static s64 sn_device_fixup_war(u64 nasid, u64 widget, int device,
146 struct sn_flush_device_common *common)
147{
148 struct sn_flush_device_war *war_list;
149 struct sn_flush_device_war *dev_entry;
150 struct ia64_sal_retval isrv = {0,0,0,0};
151
152 if (!war_implemented) {
153 printk(KERN_WARNING "PROM version < 4.50 -- implementing old "
154 "PROM flush WAR\n");
155 war_implemented = 1;
156 }
157
158 war_list = kzalloc(DEV_PER_WIDGET * sizeof(*war_list), GFP_KERNEL);
159 if (!war_list)
160 BUG();
161
162 SAL_CALL_NOLOCK(isrv, SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST,
163 nasid, widget, __pa(war_list), 0, 0, 0 ,0);
164 if (isrv.status)
165 panic("sn_device_fixup_war failed: %s\n",
166 ia64_sal_strerror(isrv.status));
167
168 dev_entry = war_list + device;
169 memcpy(common,dev_entry, sizeof(*common));
170 kfree(war_list);
171
172 return isrv.status;
173}
174
175/*
176 * sn_common_hubdev_init() - This routine is called to initialize the HUB data
177 * structure for each node in the system.
178 */
179void __init
180sn_common_hubdev_init(struct hubdev_info *hubdev)
181{
182
183 struct sn_flush_device_kernel *sn_flush_device_kernel;
184 struct sn_flush_device_kernel *dev_entry;
185 s64 status;
186 int widget, device, size;
187
188 /* Attach the error interrupt handlers */
189 if (hubdev->hdi_nasid & 1) /* If TIO */
190 ice_error_init(hubdev);
191 else
192 hub_error_init(hubdev);
193
194 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++)
195 hubdev->hdi_xwidget_info[widget].xwi_hubinfo = hubdev;
196
197 if (!hubdev->hdi_flush_nasid_list.widget_p)
198 return;
199
200 size = (HUB_WIDGET_ID_MAX + 1) *
201 sizeof(struct sn_flush_device_kernel *);
202 hubdev->hdi_flush_nasid_list.widget_p =
203 kzalloc(size, GFP_KERNEL);
204 if (!hubdev->hdi_flush_nasid_list.widget_p)
205 BUG();
206
207 for (widget = 0; widget <= HUB_WIDGET_ID_MAX; widget++) {
208 size = DEV_PER_WIDGET *
209 sizeof(struct sn_flush_device_kernel);
210 sn_flush_device_kernel = kzalloc(size, GFP_KERNEL);
211 if (!sn_flush_device_kernel)
212 BUG();
213
214 dev_entry = sn_flush_device_kernel;
215 for (device = 0; device < DEV_PER_WIDGET;
216 device++, dev_entry++) {
217 size = sizeof(struct sn_flush_device_common);
218 dev_entry->common = kzalloc(size, GFP_KERNEL);
219 if (!dev_entry->common)
220 BUG();
221 if (sn_prom_feature_available(PRF_DEVICE_FLUSH_LIST))
222 status = sal_get_device_dmaflush_list(
223 hubdev->hdi_nasid, widget, device,
224 (u64)(dev_entry->common));
225 else
226 status = sn_device_fixup_war(hubdev->hdi_nasid,
227 widget, device,
228 dev_entry->common);
229 if (status != SALRET_OK)
230 panic("SAL call failed: %s\n",
231 ia64_sal_strerror(status));
232
233 spin_lock_init(&dev_entry->sfdl_flush_lock);
234 }
235
236 if (sn_flush_device_kernel)
237 hubdev->hdi_flush_nasid_list.widget_p[widget] =
238 sn_flush_device_kernel;
239 }
240}
241
242void sn_pci_unfixup_slot(struct pci_dev *dev)
243{
244 struct pci_dev *host_pci_dev = SN_PCIDEV_INFO(dev)->host_pci_dev;
245
246 sn_irq_unfixup(dev);
247 pci_dev_put(host_pci_dev);
248 pci_dev_put(dev);
249}
250
251/*
252 * sn_pci_fixup_slot() - This routine sets up a slot's resources consistent
253 * with the Linux PCI abstraction layer. Resources
254 * acquired from our PCI provider include PIO maps
255 * to BAR space and interrupt objects.
256 */
257void sn_pci_fixup_slot(struct pci_dev *dev)
258{
259 int segment = pci_domain_nr(dev->bus);
260 int status = 0;
261 struct pcibus_bussoft *bs;
262 struct pci_bus *host_pci_bus;
263 struct pci_dev *host_pci_dev;
264 struct pcidev_info *pcidev_info;
265 struct sn_irq_info *sn_irq_info;
266 unsigned int bus_no, devfn;
267
268 pci_dev_get(dev); /* for the sysdata pointer */
269 pcidev_info = kzalloc(sizeof(struct pcidev_info), GFP_KERNEL);
270 if (!pcidev_info)
271 BUG(); /* Cannot afford to run out of memory */
272
273 sn_irq_info = kzalloc(sizeof(struct sn_irq_info), GFP_KERNEL);
274 if (!sn_irq_info)
275 BUG(); /* Cannot afford to run out of memory */
276
277 /* Call to retrieve pci device information needed by kernel. */
278 status = sal_get_pcidev_info((u64) segment, (u64) dev->bus->number,
279 dev->devfn,
280 (u64) __pa(pcidev_info),
281 (u64) __pa(sn_irq_info));
282 if (status)
283 BUG(); /* Cannot get platform pci device information */
284
285 /* Add pcidev_info to list in pci_controller.platform_data */
286 list_add_tail(&pcidev_info->pdi_list,
287 &(SN_PLATFORM_DATA(dev->bus)->pcidev_info));
288
289 if (!SN_ACPI_BASE_SUPPORT())
290 sn_more_slot_fixup(dev, pcidev_info);
291
292 /*
293 * Using the PROMs values for the PCI host bus, get the Linux
294 * PCI host_pci_dev struct and set up host bus linkages
295 */
296
297 bus_no = (pcidev_info->pdi_slot_host_handle >> 32) & 0xff;
298 devfn = pcidev_info->pdi_slot_host_handle & 0xffffffff;
299 host_pci_bus = pci_find_bus(segment, bus_no);
300 host_pci_dev = pci_get_slot(host_pci_bus, devfn);
301
302 pcidev_info->host_pci_dev = host_pci_dev;
303 pcidev_info->pdi_linux_pcidev = dev;
304 pcidev_info->pdi_host_pcidev_info = SN_PCIDEV_INFO(host_pci_dev);
305 bs = SN_PCIBUS_BUSSOFT(dev->bus);
306 pcidev_info->pdi_pcibus_info = bs;
307
308 if (bs && bs->bs_asic_type < PCIIO_ASIC_MAX_TYPES) {
309 SN_PCIDEV_BUSPROVIDER(dev) = sn_pci_provider[bs->bs_asic_type];
310 } else {
311 SN_PCIDEV_BUSPROVIDER(dev) = &sn_pci_default_provider;
312 }
313
314 /* Only set up IRQ stuff if this device has a host bus context */
315 if (bs && sn_irq_info->irq_irq) {
316 pcidev_info->pdi_sn_irq_info = sn_irq_info;
317 dev->irq = pcidev_info->pdi_sn_irq_info->irq_irq;
318 sn_irq_fixup(dev, sn_irq_info);
319 } else {
320 pcidev_info->pdi_sn_irq_info = NULL;
321 kfree(sn_irq_info);
322 }
323}
324
325/*
326 * sn_common_bus_fixup - Perform platform specific bus fixup.
327 * Execute the ASIC specific fixup routine
328 * for this bus.
329 */
330void
331sn_common_bus_fixup(struct pci_bus *bus,
332 struct pcibus_bussoft *prom_bussoft_ptr)
333{
334 int cnode;
335 struct pci_controller *controller;
336 struct hubdev_info *hubdev_info;
337 int nasid;
338 void *provider_soft;
339 struct sn_pcibus_provider *provider;
340 struct sn_platform_data *sn_platform_data;
341
342 controller = PCI_CONTROLLER(bus);
343 /*
344 * Per-provider fixup. Copies the bus soft structure from prom
345 * to local area and links SN_PCIBUS_BUSSOFT().
346 */
347
348 if (prom_bussoft_ptr->bs_asic_type >= PCIIO_ASIC_MAX_TYPES) {
349 printk(KERN_WARNING "sn_common_bus_fixup: Unsupported asic type, %d",
350 prom_bussoft_ptr->bs_asic_type);
351 return;
352 }
353
354 if (prom_bussoft_ptr->bs_asic_type == PCIIO_ASIC_TYPE_PPB)
355 return; /* no further fixup necessary */
356
357 provider = sn_pci_provider[prom_bussoft_ptr->bs_asic_type];
358 if (provider == NULL)
359 panic("sn_common_bus_fixup: No provider registered for this asic type, %d",
360 prom_bussoft_ptr->bs_asic_type);
361
362 if (provider->bus_fixup)
363 provider_soft = (*provider->bus_fixup) (prom_bussoft_ptr,
364 controller);
365 else
366 provider_soft = NULL;
367
368 /*
369 * Generic bus fixup goes here. Don't reference prom_bussoft_ptr
370 * after this point.
371 */
372 controller->platform_data = kzalloc(sizeof(struct sn_platform_data),
373 GFP_KERNEL);
374 if (controller->platform_data == NULL)
375 BUG();
376 sn_platform_data =
377 (struct sn_platform_data *) controller->platform_data;
378 sn_platform_data->provider_soft = provider_soft;
379 INIT_LIST_HEAD(&((struct sn_platform_data *)
380 controller->platform_data)->pcidev_info);
381 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(bus)->bs_base);
382 cnode = nasid_to_cnodeid(nasid);
383 hubdev_info = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
384 SN_PCIBUS_BUSSOFT(bus)->bs_xwidget_info =
385 &(hubdev_info->hdi_xwidget_info[SN_PCIBUS_BUSSOFT(bus)->bs_xid]);
386
387 /*
388 * If the node information we obtained during the fixup phase is
389 * invalid then set controller->node to -1 (undetermined)
390 */
391 if (controller->node >= num_online_nodes()) {
392 struct pcibus_bussoft *b = SN_PCIBUS_BUSSOFT(bus);
393
394 printk(KERN_WARNING "Device ASIC=%u XID=%u PBUSNUM=%u"
395 "L_IO=%lx L_MEM=%lx BASE=%lx\n",
396 b->bs_asic_type, b->bs_xid, b->bs_persist_busnum,
397 b->bs_legacy_io, b->bs_legacy_mem, b->bs_base);
398 printk(KERN_WARNING "on node %d but only %d nodes online."
399 "Association set to undetermined.\n",
400 controller->node, num_online_nodes());
401 controller->node = -1;
402 }
403}
404
405void sn_bus_store_sysdata(struct pci_dev *dev)
406{
407 struct sysdata_el *element;
408
409 element = kzalloc(sizeof(struct sysdata_el), GFP_KERNEL);
410 if (!element) {
411 dev_dbg(dev, "%s: out of memory!\n", __FUNCTION__);
412 return;
413 }
414 element->sysdata = SN_PCIDEV_INFO(dev);
415 list_add(&element->entry, &sn_sysdata_list);
416}
417
418void sn_bus_free_sysdata(void)
419{
420 struct sysdata_el *element;
421 struct list_head *list, *safe;
422
423 list_for_each_safe(list, safe, &sn_sysdata_list) {
424 element = list_entry(list, struct sysdata_el, entry);
425 list_del(&element->entry);
426 list_del(&(((struct pcidev_info *)
427 (element->sysdata))->pdi_list));
428 kfree(element->sysdata);
429 kfree(element);
430 }
431 return;
432}
433
434/*
435 * hubdev_init_node() - Creates the HUB data structure and link them to it's
436 * own NODE specific data area.
437 */
438void hubdev_init_node(nodepda_t * npda, cnodeid_t node)
439{
440 struct hubdev_info *hubdev_info;
441 int size;
442 pg_data_t *pg;
443
444 size = sizeof(struct hubdev_info);
445
446 if (node >= num_online_nodes()) /* Headless/memless IO nodes */
447 pg = NODE_DATA(0);
448 else
449 pg = NODE_DATA(node);
450
451 hubdev_info = (struct hubdev_info *)alloc_bootmem_node(pg, size);
452
453 npda->pdinfo = (void *)hubdev_info;
454}
455
456geoid_t
457cnodeid_get_geoid(cnodeid_t cnode)
458{
459 struct hubdev_info *hubdev;
460
461 hubdev = (struct hubdev_info *)(NODEPDA(cnode)->pdinfo);
462 return hubdev->hdi_geoid;
463}
464
465void sn_generate_path(struct pci_bus *pci_bus, char *address)
466{
467 nasid_t nasid;
468 cnodeid_t cnode;
469 geoid_t geoid;
470 moduleid_t moduleid;
471 u16 bricktype;
472
473 nasid = NASID_GET(SN_PCIBUS_BUSSOFT(pci_bus)->bs_base);
474 cnode = nasid_to_cnodeid(nasid);
475 geoid = cnodeid_get_geoid(cnode);
476 moduleid = geo_module(geoid);
477
478 sprintf(address, "module_%c%c%c%c%.2d",
479 '0'+RACK_GET_CLASS(MODULE_GET_RACK(moduleid)),
480 '0'+RACK_GET_GROUP(MODULE_GET_RACK(moduleid)),
481 '0'+RACK_GET_NUM(MODULE_GET_RACK(moduleid)),
482 MODULE_GET_BTCHAR(moduleid), MODULE_GET_BPOS(moduleid));
483
484 /* Tollhouse requires slot id to be displayed */
485 bricktype = MODULE_GET_BTYPE(moduleid);
486 if ((bricktype == L1_BRICKTYPE_191010) ||
487 (bricktype == L1_BRICKTYPE_1932))
488 sprintf(address, "%s^%d", address, geo_slot(geoid));
489}
490
491/*
492 * sn_pci_fixup_bus() - Perform SN specific setup of software structs
493 * (pcibus_bussoft, pcidev_info) and hardware
494 * registers, for the specified bus and devices under it.
495 */
496void __devinit
497sn_pci_fixup_bus(struct pci_bus *bus)
498{
499
500 if (SN_ACPI_BASE_SUPPORT())
501 sn_acpi_bus_fixup(bus);
502 else
503 sn_bus_fixup(bus);
504}
505
506/*
507 * sn_io_early_init - Perform early IO (and some non-IO) initialization.
508 * In particular, setup the sn_pci_provider[] array.
509 * This needs to be done prior to any bus scanning
510 * (acpi_scan_init()) in the ACPI case, as the SN
511 * bus fixup code will reference the array.
512 */
513static int __init
514sn_io_early_init(void)
515{
516 int i;
517
518 if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
519 return 0;
520
521 /*
522 * prime sn_pci_provider[]. Individial provider init routines will
523 * override their respective default entries.
524 */
525
526 for (i = 0; i < PCIIO_ASIC_MAX_TYPES; i++)
527 sn_pci_provider[i] = &sn_pci_default_provider;
528
529 pcibr_init_provider();
530 tioca_init_provider();
531 tioce_init_provider();
532
533 /*
534 * This is needed to avoid bounce limit checks in the blk layer
535 */
536 ia64_max_iommu_merge_mask = ~PAGE_MASK;
537
538 sn_irq_lh_init();
539 INIT_LIST_HEAD(&sn_sysdata_list);
540 sn_init_cpei_timer();
541
542#ifdef CONFIG_PROC_FS
543 register_sn_procfs();
544#endif
545
546 printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
547 acpi_gbl_DSDT->oem_revision);
548 if (SN_ACPI_BASE_SUPPORT())
549 sn_io_acpi_init();
550 else
551 sn_io_init();
552 return 0;
553}
554
555arch_initcall(sn_io_early_init);
556
557/*
558 * sn_io_late_init() - Perform any final platform specific IO initialization.
559 */
560
561int __init
562sn_io_late_init(void)
563{
564 struct pci_bus *bus;
565 struct pcibus_bussoft *bussoft;
566 cnodeid_t cnode;
567 nasid_t nasid;
568 cnodeid_t near_cnode;
569
570 if (!ia64_platform_is("sn2") || IS_RUNNING_ON_FAKE_PROM())
571 return 0;
572
573 /*
574 * Setup closest node in pci_controller->node for
575 * PIC, TIOCP, TIOCE (TIOCA does it during bus fixup using
576 * info from the PROM).
577 */
578 bus = NULL;
579 while ((bus = pci_find_next_bus(bus)) != NULL) {
580 bussoft = SN_PCIBUS_BUSSOFT(bus);
581 nasid = NASID_GET(bussoft->bs_base);
582 cnode = nasid_to_cnodeid(nasid);
583 if ((bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) ||
584 (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCE)) {
585 /* TIO PCI Bridge: find nearest node with CPUs */
586 int e = sn_hwperf_get_nearest_node(cnode, NULL,
587 &near_cnode);
588 if (e < 0) {
589 near_cnode = (cnodeid_t)-1; /* use any node */
590 printk(KERN_WARNING "pcibr_bus_fixup: failed "
591 "to find near node with CPUs to TIO "
592 "node %d, err=%d\n", cnode, e);
593 }
594 PCI_CONTROLLER(bus)->node = near_cnode;
595 } else if (bussoft->bs_asic_type == PCIIO_ASIC_TYPE_PIC) {
596 PCI_CONTROLLER(bus)->node = cnode;
597 }
598 }
599
600 sn_ioif_inited = 1; /* SN I/O infrastructure now initialized */
601
602 return 0;
603}
604
605fs_initcall(sn_io_late_init);
606
607EXPORT_SYMBOL(sn_pci_fixup_slot);
608EXPORT_SYMBOL(sn_pci_unfixup_slot);
609EXPORT_SYMBOL(sn_bus_store_sysdata);
610EXPORT_SYMBOL(sn_bus_free_sysdata);
611EXPORT_SYMBOL(sn_generate_path);
612
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);
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index 7ce3cdad627b..4aa4f301d56d 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -3,10 +3,11 @@
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) 2000-2003 Silicon Graphics, Inc. All rights reserved. 6 * Copyright (C) 2000-2003, 2006 Silicon Graphics, Inc. All rights reserved.
7 */ 7 */
8 8
9#include <linux/module.h> 9#include <linux/module.h>
10#include <linux/acpi.h>
10#include <asm/io.h> 11#include <asm/io.h>
11#include <asm/delay.h> 12#include <asm/delay.h>
12#include <asm/vga.h> 13#include <asm/vga.h>
@@ -15,6 +16,7 @@
15#include <asm/sn/pda.h> 16#include <asm/sn/pda.h>
16#include <asm/sn/sn_cpuid.h> 17#include <asm/sn/sn_cpuid.h>
17#include <asm/sn/shub_mmr.h> 18#include <asm/sn/shub_mmr.h>
19#include <asm/sn/acpi.h>
18 20
19#define IS_LEGACY_VGA_IOPORT(p) \ 21#define IS_LEGACY_VGA_IOPORT(p) \
20 (((p) >= 0x3b0 && (p) <= 0x3bb) || ((p) >= 0x3c0 && (p) <= 0x3df)) 22 (((p) >= 0x3b0 && (p) <= 0x3bb) || ((p) >= 0x3c0 && (p) <= 0x3df))
@@ -31,11 +33,14 @@ void *sn_io_addr(unsigned long port)
31{ 33{
32 if (!IS_RUNNING_ON_SIMULATOR()) { 34 if (!IS_RUNNING_ON_SIMULATOR()) {
33 if (IS_LEGACY_VGA_IOPORT(port)) 35 if (IS_LEGACY_VGA_IOPORT(port))
34 port += vga_console_iobase; 36 return (__ia64_mk_io_addr(port));
35 /* On sn2, legacy I/O ports don't point at anything */ 37 /* On sn2, legacy I/O ports don't point at anything */
36 if (port < (64 * 1024)) 38 if (port < (64 * 1024))
37 return NULL; 39 return NULL;
38 return ((void *)(port | __IA64_UNCACHED_OFFSET)); 40 if (SN_ACPI_BASE_SUPPORT())
41 return (__ia64_mk_io_addr(port));
42 else
43 return ((void *)(port | __IA64_UNCACHED_OFFSET));
39 } else { 44 } else {
40 /* but the simulator uses them... */ 45 /* but the simulator uses them... */
41 unsigned long addr; 46 unsigned long addr;
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index 7a2d824c5ce3..1d009f93244d 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -388,6 +388,14 @@ void __init sn_setup(char **cmdline_p)
388 ia64_sn_plat_set_error_handling_features(); // obsolete 388 ia64_sn_plat_set_error_handling_features(); // obsolete
389 ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV); 389 ia64_sn_set_os_feature(OSF_MCA_SLV_TO_OS_INIT_SLV);
390 ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES); 390 ia64_sn_set_os_feature(OSF_FEAT_LOG_SBES);
391 /*
392 * Note: The calls to notify the PROM of ACPI and PCI Segment
393 * support must be done prior to acpi_load_tables(), as
394 * an ACPI capable PROM will rebuild the DSDT as result
395 * of the call.
396 */
397 ia64_sn_set_os_feature(OSF_PCISEGMENT_ENABLE);
398 ia64_sn_set_os_feature(OSF_ACPI_ENABLE);
391 399
392 400
393#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE) 401#if defined(CONFIG_VT) && defined(CONFIG_VGA_CONSOLE)
@@ -413,6 +421,16 @@ void __init sn_setup(char **cmdline_p)
413 if (! vga_console_membase) 421 if (! vga_console_membase)
414 sn_scan_pcdp(); 422 sn_scan_pcdp();
415 423
424 /*
425 * Setup legacy IO space.
426 * vga_console_iobase maps to PCI IO Space address 0 on the
427 * bus containing the VGA console.
428 */
429 if (vga_console_iobase) {
430 io_space[0].mmio_base = vga_console_iobase;
431 io_space[0].sparse = 0;
432 }
433
416 if (vga_console_membase) { 434 if (vga_console_membase) {
417 /* usable vga ... make tty0 the preferred default console */ 435 /* usable vga ... make tty0 the preferred default console */
418 if (!strstr(*cmdline_p, "console=")) 436 if (!strstr(*cmdline_p, "console="))
diff --git a/arch/ia64/sn/kernel/tiocx.c b/arch/ia64/sn/kernel/tiocx.c
index feaf1a6e8101..493380b2c05f 100644
--- a/arch/ia64/sn/kernel/tiocx.c
+++ b/arch/ia64/sn/kernel/tiocx.c
@@ -552,7 +552,7 @@ static void __exit tiocx_exit(void)
552 bus_unregister(&tiocx_bus_type); 552 bus_unregister(&tiocx_bus_type);
553} 553}
554 554
555subsys_initcall(tiocx_init); 555fs_initcall(tiocx_init);
556module_exit(tiocx_exit); 556module_exit(tiocx_exit);
557 557
558/************************************************************************ 558/************************************************************************
diff --git a/arch/ia64/sn/pci/pcibr/pcibr_provider.c b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
index 27dd7df0f446..6846dc9b432d 100644
--- a/arch/ia64/sn/pci/pcibr/pcibr_provider.c
+++ b/arch/ia64/sn/pci/pcibr/pcibr_provider.c
@@ -3,7 +3,7 @@
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) 2001-2004 Silicon Graphics, Inc. All rights reserved. 6 * Copyright (C) 2001-2004, 2006 Silicon Graphics, Inc. All rights reserved.
7 */ 7 */
8 8
9#include <linux/interrupt.h> 9#include <linux/interrupt.h>
@@ -109,7 +109,6 @@ void *
109pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller) 109pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
110{ 110{
111 int nasid, cnode, j; 111 int nasid, cnode, j;
112 cnodeid_t near_cnode;
113 struct hubdev_info *hubdev_info; 112 struct hubdev_info *hubdev_info;
114 struct pcibus_info *soft; 113 struct pcibus_info *soft;
115 struct sn_flush_device_kernel *sn_flush_device_kernel; 114 struct sn_flush_device_kernel *sn_flush_device_kernel;
@@ -186,20 +185,6 @@ pcibr_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
186 return NULL; 185 return NULL;
187 } 186 }
188 187
189 if (prom_bussoft->bs_asic_type == PCIIO_ASIC_TYPE_TIOCP) {
190 /* TIO PCI Bridge: find nearest node with CPUs */
191 int e = sn_hwperf_get_nearest_node(cnode, NULL, &near_cnode);
192
193 if (e < 0) {
194 near_cnode = (cnodeid_t)-1; /* use any node */
195 printk(KERN_WARNING "pcibr_bus_fixup: failed to find "
196 "near node with CPUs to TIO node %d, err=%d\n",
197 cnode, e);
198 }
199 controller->node = near_cnode;
200 }
201 else
202 controller->node = cnode;
203 return soft; 188 return soft;
204} 189}
205 190
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
index 46e16dcf5971..35f854fb6120 100644
--- a/arch/ia64/sn/pci/tioce_provider.c
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -15,7 +15,6 @@
15#include <asm/sn/pcidev.h> 15#include <asm/sn/pcidev.h>
16#include <asm/sn/pcibus_provider_defs.h> 16#include <asm/sn/pcibus_provider_defs.h>
17#include <asm/sn/tioce_provider.h> 17#include <asm/sn/tioce_provider.h>
18#include <asm/sn/sn2/sn_hwperf.h>
19 18
20/* 19/*
21 * 1/26/2006 20 * 1/26/2006
@@ -990,8 +989,6 @@ tioce_target_interrupt(struct sn_irq_info *sn_irq_info)
990static void * 989static void *
991tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller) 990tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
992{ 991{
993 int my_nasid;
994 cnodeid_t my_cnode, mem_cnode;
995 struct tioce_common *tioce_common; 992 struct tioce_common *tioce_common;
996 struct tioce_kernel *tioce_kern; 993 struct tioce_kernel *tioce_kern;
997 struct tioce __iomem *tioce_mmr; 994 struct tioce __iomem *tioce_mmr;
@@ -1035,21 +1032,6 @@ tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *cont
1035 tioce_common->ce_pcibus.bs_persist_segment, 1032 tioce_common->ce_pcibus.bs_persist_segment,
1036 tioce_common->ce_pcibus.bs_persist_busnum); 1033 tioce_common->ce_pcibus.bs_persist_busnum);
1037 1034
1038 /*
1039 * identify closest nasid for memory allocations
1040 */
1041
1042 my_nasid = NASID_GET(tioce_common->ce_pcibus.bs_base);
1043 my_cnode = nasid_to_cnodeid(my_nasid);
1044
1045 if (sn_hwperf_get_nearest_node(my_cnode, &mem_cnode, NULL) < 0) {
1046 printk(KERN_WARNING "tioce_bus_fixup: failed to find "
1047 "closest node with MEM to TIO node %d\n", my_cnode);
1048 mem_cnode = (cnodeid_t)-1; /* use any node */
1049 }
1050
1051 controller->node = mem_cnode;
1052
1053 return tioce_common; 1035 return tioce_common;
1054} 1036}
1055 1037
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 01:10:27 -0500