4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Copyright (c) 1999 The Puffin Group
10 * Copyright (c) 2001 Matthew Wilcox for Hewlett Packard
11 * Copyright (c) 2001 Helge Deller <deller@gmx.de>
12 * Copyright (c) 2001,2002 Ryan Bradetich
13 * Copyright (c) 2004-2005 Thibaut VARENE <varenet@parisc-linux.org>
15 * The file handles registering devices and drivers, then matching them.
16 * It's the closest we get to a dating agency.
18 * If you're thinking about modifying this file, here are some gotchas to
20 * - 715/Mirage device paths have a dummy device between Lasi and its children
21 * - The EISA adapter may show up as a sibling or child of Wax
22 * - Dino has an optionally functional serial port. If firmware enables it,
23 * it shows up as a child of Dino. If firmware disables it, the buswalk
24 * finds it and it shows up as a child of Cujo
25 * - Dino has both parisc and pci devices as children
26 * - parisc devices are discovered in a random order, including children
27 * before parents in some cases.
30 #include <linux/slab.h>
31 #include <linux/types.h>
32 #include <linux/kernel.h>
33 #include <linux/pci.h>
34 #include <linux/spinlock.h>
35 #include <linux/string.h>
36 #include <linux/export.h>
37 #include <asm/hardware.h>
40 #include <asm/parisc-device.h>
41 #include <asm/ropes.h>
43 /* See comments in include/asm-parisc/pci.h */
44 const struct dma_map_ops *hppa_dma_ops __ro_after_init;
45 EXPORT_SYMBOL(hppa_dma_ops);
47 static struct device root = {
48 .init_name = "parisc",
51 static inline int check_dev(struct device *dev)
53 if (dev->bus == &parisc_bus_type) {
54 struct parisc_device *pdev;
55 pdev = to_parisc_device(dev);
56 return pdev->id.hw_type != HPHW_FAULTY;
61 static struct device *
62 parse_tree_node(struct device *parent, int index, struct hardware_path *modpath);
64 struct recurse_struct {
66 int (*fn)(struct device *, void *);
69 static int descend_children(struct device * dev, void * data)
71 struct recurse_struct * recurse_data = (struct recurse_struct *)data;
73 if (recurse_data->fn(dev, recurse_data->obj))
76 return device_for_each_child(dev, recurse_data, descend_children);
80 * for_each_padev - Iterate over all devices in the tree
81 * @fn: Function to call for each device.
82 * @data: Data to pass to the called function.
84 * This performs a depth-first traversal of the tree, calling the
85 * function passed for each node. It calls the function for parents
89 static int for_each_padev(int (*fn)(struct device *, void *), void * data)
91 struct recurse_struct recurse_data = {
95 return device_for_each_child(&root, &recurse_data, descend_children);
99 * match_device - Report whether this driver can handle this device
100 * @driver: the PA-RISC driver to try
101 * @dev: the PA-RISC device to try
103 static int match_device(struct parisc_driver *driver, struct parisc_device *dev)
105 const struct parisc_device_id *ids;
107 for (ids = driver->id_table; ids->sversion; ids++) {
108 if ((ids->sversion != SVERSION_ANY_ID) &&
109 (ids->sversion != dev->id.sversion))
112 if ((ids->hw_type != HWTYPE_ANY_ID) &&
113 (ids->hw_type != dev->id.hw_type))
116 if ((ids->hversion != HVERSION_ANY_ID) &&
117 (ids->hversion != dev->id.hversion))
125 static int parisc_driver_probe(struct device *dev)
128 struct parisc_device *pa_dev = to_parisc_device(dev);
129 struct parisc_driver *pa_drv = to_parisc_driver(dev->driver);
131 rc = pa_drv->probe(pa_dev);
134 pa_dev->driver = pa_drv;
139 static int __exit parisc_driver_remove(struct device *dev)
141 struct parisc_device *pa_dev = to_parisc_device(dev);
142 struct parisc_driver *pa_drv = to_parisc_driver(dev->driver);
144 pa_drv->remove(pa_dev);
151 * register_parisc_driver - Register this driver if it can handle a device
152 * @driver: the PA-RISC driver to try
154 int register_parisc_driver(struct parisc_driver *driver)
156 /* FIXME: we need this because apparently the sti
157 * driver can be registered twice */
158 if (driver->drv.name) {
159 pr_warn("BUG: skipping previously registered driver %s\n",
164 if (!driver->probe) {
165 pr_warn("BUG: driver %s has no probe routine\n", driver->name);
169 driver->drv.bus = &parisc_bus_type;
171 /* We install our own probe and remove routines */
172 WARN_ON(driver->drv.probe != NULL);
173 WARN_ON(driver->drv.remove != NULL);
175 driver->drv.name = driver->name;
177 return driver_register(&driver->drv);
179 EXPORT_SYMBOL(register_parisc_driver);
183 struct parisc_driver * driver;
187 static int match_and_count(struct device * dev, void * data)
189 struct match_count * m = data;
190 struct parisc_device * pdev = to_parisc_device(dev);
192 if (check_dev(dev)) {
193 if (match_device(m->driver, pdev))
200 * count_parisc_driver - count # of devices this driver would match
201 * @driver: the PA-RISC driver to try
203 * Use by IOMMU support to "guess" the right size IOPdir.
204 * Formula is something like memsize/(num_iommu * entry_size).
206 int __init count_parisc_driver(struct parisc_driver *driver)
208 struct match_count m = {
213 for_each_padev(match_and_count, &m);
221 * unregister_parisc_driver - Unregister this driver from the list of drivers
222 * @driver: the PA-RISC driver to unregister
224 int unregister_parisc_driver(struct parisc_driver *driver)
226 driver_unregister(&driver->drv);
229 EXPORT_SYMBOL(unregister_parisc_driver);
233 struct parisc_device * dev;
236 static int find_device(struct device * dev, void * data)
238 struct parisc_device * pdev = to_parisc_device(dev);
239 struct find_data * d = (struct find_data*)data;
241 if (check_dev(dev)) {
242 if (pdev->hpa.start == d->hpa) {
250 static struct parisc_device *find_device_by_addr(unsigned long hpa)
252 struct find_data d = {
257 ret = for_each_padev(find_device, &d);
258 return ret ? d.dev : NULL;
261 static int __init is_IKE_device(struct device *dev, void *data)
263 struct parisc_device *pdev = to_parisc_device(dev);
267 if (pdev->id.hw_type != HPHW_BCPORT)
270 (pdev->id.hversion == REO_MERCED_PORT) ||
271 (pdev->id.hversion == REOG_MERCED_PORT)) {
277 int __init machine_has_merced_bus(void)
281 ret = for_each_padev(is_IKE_device, NULL);
286 * find_pa_parent_type - Find a parent of a specific type
287 * @dev: The device to start searching from
288 * @type: The device type to search for.
290 * Walks up the device tree looking for a device of the specified type.
291 * If it finds it, it returns it. If not, it returns NULL.
293 const struct parisc_device *
294 find_pa_parent_type(const struct parisc_device *padev, int type)
296 const struct device *dev = &padev->dev;
297 while (dev != &root) {
298 struct parisc_device *candidate = to_parisc_device(dev);
299 if (candidate->id.hw_type == type)
308 * get_node_path fills in @path with the firmware path to the device.
309 * Note that if @node is a parisc device, we don't fill in the 'mod' field.
310 * This is because both callers pass the parent and fill in the mod
311 * themselves. If @node is a PCI device, we do fill it in, even though this
314 static void get_node_path(struct device *dev, struct hardware_path *path)
317 memset(&path->bc, -1, 6);
319 if (dev_is_pci(dev)) {
320 unsigned int devfn = to_pci_dev(dev)->devfn;
321 path->mod = PCI_FUNC(devfn);
322 path->bc[i--] = PCI_SLOT(devfn);
326 while (dev != &root) {
327 if (dev_is_pci(dev)) {
328 unsigned int devfn = to_pci_dev(dev)->devfn;
329 path->bc[i--] = PCI_SLOT(devfn) | (PCI_FUNC(devfn)<< 5);
330 } else if (dev->bus == &parisc_bus_type) {
331 path->bc[i--] = to_parisc_device(dev)->hw_path;
337 static char *print_hwpath(struct hardware_path *path, char *output)
340 for (i = 0; i < 6; i++) {
341 if (path->bc[i] == -1)
343 output += sprintf(output, "%u/", (unsigned char) path->bc[i]);
345 output += sprintf(output, "%u", (unsigned char) path->mod);
350 * print_pa_hwpath - Returns hardware path for PA devices
351 * dev: The device to return the path for
352 * output: Pointer to a previously-allocated array to place the path in.
354 * This function fills in the output array with a human-readable path
355 * to a PA device. This string is compatible with that used by PDC, and
356 * may be printed on the outside of the box.
358 char *print_pa_hwpath(struct parisc_device *dev, char *output)
360 struct hardware_path path;
362 get_node_path(dev->dev.parent, &path);
363 path.mod = dev->hw_path;
364 return print_hwpath(&path, output);
366 EXPORT_SYMBOL(print_pa_hwpath);
368 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
370 * get_pci_node_path - Determines the hardware path for a PCI device
371 * @pdev: The device to return the path for
372 * @path: Pointer to a previously-allocated array to place the path in.
374 * This function fills in the hardware_path structure with the route to
375 * the specified PCI device. This structure is suitable for passing to
378 void get_pci_node_path(struct pci_dev *pdev, struct hardware_path *path)
380 get_node_path(&pdev->dev, path);
382 EXPORT_SYMBOL(get_pci_node_path);
385 * print_pci_hwpath - Returns hardware path for PCI devices
386 * dev: The device to return the path for
387 * output: Pointer to a previously-allocated array to place the path in.
389 * This function fills in the output array with a human-readable path
390 * to a PCI device. This string is compatible with that used by PDC, and
391 * may be printed on the outside of the box.
393 char *print_pci_hwpath(struct pci_dev *dev, char *output)
395 struct hardware_path path;
397 get_pci_node_path(dev, &path);
398 return print_hwpath(&path, output);
400 EXPORT_SYMBOL(print_pci_hwpath);
402 #endif /* defined(CONFIG_PCI) || defined(CONFIG_ISA) */
404 static void setup_bus_id(struct parisc_device *padev)
406 struct hardware_path path;
411 get_node_path(padev->dev.parent, &path);
413 for (i = 0; i < 6; i++) {
414 if (path.bc[i] == -1)
416 output += sprintf(output, "%u:", (unsigned char) path.bc[i]);
418 sprintf(output, "%u", (unsigned char) padev->hw_path);
419 dev_set_name(&padev->dev, name);
422 struct parisc_device * __init create_tree_node(char id, struct device *parent)
424 struct parisc_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
429 dev->id.hw_type = HPHW_FAULTY;
431 dev->dev.parent = parent;
434 dev->dev.bus = &parisc_bus_type;
435 dev->dma_mask = 0xffffffffUL; /* PARISC devices are 32-bit */
437 /* make the generic dma mask a pointer to the parisc one */
438 dev->dev.dma_mask = &dev->dma_mask;
439 dev->dev.coherent_dma_mask = dev->dma_mask;
440 if (device_register(&dev->dev)) {
448 struct match_id_data {
450 struct parisc_device * dev;
453 static int match_by_id(struct device * dev, void * data)
455 struct parisc_device * pdev = to_parisc_device(dev);
456 struct match_id_data * d = data;
458 if (pdev->hw_path == d->id) {
466 * alloc_tree_node - returns a device entry in the iotree
467 * @parent: the parent node in the tree
468 * @id: the element of the module path for this entry
470 * Checks all the children of @parent for a matching @id. If none
471 * found, it allocates a new device and returns it.
473 static struct parisc_device * __init alloc_tree_node(
474 struct device *parent, char id)
476 struct match_id_data d = {
479 if (device_for_each_child(parent, &d, match_by_id))
482 return create_tree_node(id, parent);
485 static struct parisc_device *create_parisc_device(struct hardware_path *modpath)
488 struct device *parent = &root;
489 for (i = 0; i < 6; i++) {
490 if (modpath->bc[i] == -1)
492 parent = &alloc_tree_node(parent, modpath->bc[i])->dev;
494 return alloc_tree_node(parent, modpath->mod);
497 struct parisc_device * __init
498 alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
501 unsigned long bytecnt;
503 struct parisc_device *dev;
506 /* Check to make sure this device has not already been added - Ryan */
507 if (find_device_by_addr(hpa) != NULL)
510 status = pdc_iodc_read(&bytecnt, hpa, 0, &iodc_data, 32);
511 if (status != PDC_OK)
514 dev = create_parisc_device(mod_path);
515 if (dev->id.hw_type != HPHW_FAULTY) {
516 pr_err("Two devices have hardware path [%s]. IODC data for second device: %7phN\n"
517 "Rearranging GSC cards sometimes helps\n",
518 parisc_pathname(dev), iodc_data);
522 dev->id.hw_type = iodc_data[3] & 0x1f;
523 dev->id.hversion = (iodc_data[0] << 4) | ((iodc_data[1] & 0xf0) >> 4);
524 dev->id.hversion_rev = iodc_data[1] & 0x0f;
525 dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) |
526 (iodc_data[5] << 8) | iodc_data[6];
527 dev->hpa.name = parisc_pathname(dev);
528 dev->hpa.start = hpa;
529 /* This is awkward. The STI spec says that gfx devices may occupy
530 * 32MB or 64MB. Unfortunately, we don't know how to tell whether
531 * it's the former or the latter. Assumptions either way can hurt us.
533 if (hpa == 0xf4000000 || hpa == 0xf8000000) {
534 dev->hpa.end = hpa + 0x03ffffff;
535 } else if (hpa == 0xf6000000 || hpa == 0xfa000000) {
536 dev->hpa.end = hpa + 0x01ffffff;
538 dev->hpa.end = hpa + 0xfff;
540 dev->hpa.flags = IORESOURCE_MEM;
541 name = parisc_hardware_description(&dev->id);
543 strlcpy(dev->name, name, sizeof(dev->name));
546 /* Silently fail things like mouse ports which are subsumed within
547 * the keyboard controller
549 if ((hpa & 0xfff) == 0 && insert_resource(&iomem_resource, &dev->hpa))
550 pr_warn("Unable to claim HPA %lx for device %s\n", hpa, name);
555 static int parisc_generic_match(struct device *dev, struct device_driver *drv)
557 return match_device(to_parisc_driver(drv), to_parisc_device(dev));
560 static ssize_t make_modalias(struct device *dev, char *buf)
562 const struct parisc_device *padev = to_parisc_device(dev);
563 const struct parisc_device_id *id = &padev->id;
565 return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
566 (u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
570 static int parisc_uevent(struct device *dev, struct kobj_uevent_env *env)
572 const struct parisc_device *padev;
578 padev = to_parisc_device(dev);
582 if (add_uevent_var(env, "PARISC_NAME=%s", padev->name))
585 make_modalias(dev, modalias);
586 if (add_uevent_var(env, "MODALIAS=%s", modalias))
592 #define pa_dev_attr(name, field, format_string) \
593 static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf) \
595 struct parisc_device *padev = to_parisc_device(dev); \
596 return sprintf(buf, format_string, padev->field); \
598 static DEVICE_ATTR_RO(name);
600 #define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
602 pa_dev_attr(irq, irq, "%u\n");
603 pa_dev_attr_id(hw_type, "0x%02x\n");
604 pa_dev_attr(rev, id.hversion_rev, "0x%x\n");
605 pa_dev_attr_id(hversion, "0x%03x\n");
606 pa_dev_attr_id(sversion, "0x%05x\n");
608 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
610 return make_modalias(dev, buf);
612 static DEVICE_ATTR_RO(modalias);
614 static struct attribute *parisc_device_attrs[] = {
616 &dev_attr_hw_type.attr,
618 &dev_attr_hversion.attr,
619 &dev_attr_sversion.attr,
620 &dev_attr_modalias.attr,
623 ATTRIBUTE_GROUPS(parisc_device);
625 struct bus_type parisc_bus_type = {
627 .match = parisc_generic_match,
628 .uevent = parisc_uevent,
629 .dev_groups = parisc_device_groups,
630 .probe = parisc_driver_probe,
631 .remove = __exit_p(parisc_driver_remove),
635 * register_parisc_device - Locate a driver to manage this device.
636 * @dev: The parisc device.
638 * Search the driver list for a driver that is willing to manage
641 int __init register_parisc_device(struct parisc_device *dev)
653 * match_pci_device - Matches a pci device against a given hardware path
655 * @dev: the generic device (known to be contained by a pci_dev).
656 * @index: the current BC index
657 * @modpath: the hardware path.
658 * @return: true if the device matches the hardware path.
660 static int match_pci_device(struct device *dev, int index,
661 struct hardware_path *modpath)
663 struct pci_dev *pdev = to_pci_dev(dev);
667 /* we are at the end of the path, and on the actual device */
668 unsigned int devfn = pdev->devfn;
669 return ((modpath->bc[5] == PCI_SLOT(devfn)) &&
670 (modpath->mod == PCI_FUNC(devfn)));
673 /* index might be out of bounds for bc[] */
677 id = PCI_SLOT(pdev->devfn) | (PCI_FUNC(pdev->devfn) << 5);
678 return (modpath->bc[index] == id);
682 * match_parisc_device - Matches a parisc device against a given hardware
684 * @dev: the generic device (known to be contained by a parisc_device).
685 * @index: the current BC index
686 * @modpath: the hardware path.
687 * @return: true if the device matches the hardware path.
689 static int match_parisc_device(struct device *dev, int index,
690 struct hardware_path *modpath)
692 struct parisc_device *curr = to_parisc_device(dev);
693 char id = (index == 6) ? modpath->mod : modpath->bc[index];
695 return (curr->hw_path == id);
698 struct parse_tree_data {
700 struct hardware_path * modpath;
704 static int check_parent(struct device * dev, void * data)
706 struct parse_tree_data * d = data;
708 if (check_dev(dev)) {
709 if (dev->bus == &parisc_bus_type) {
710 if (match_parisc_device(dev, d->index, d->modpath))
712 } else if (dev_is_pci(dev)) {
713 if (match_pci_device(dev, d->index, d->modpath))
715 } else if (dev->bus == NULL) {
716 /* we are on a bus bridge */
717 struct device *new = parse_tree_node(dev, d->index, d->modpath);
722 return d->dev != NULL;
726 * parse_tree_node - returns a device entry in the iotree
727 * @parent: the parent node in the tree
728 * @index: the current BC index
729 * @modpath: the hardware_path struct to match a device against
730 * @return: The corresponding device if found, NULL otherwise.
732 * Checks all the children of @parent for a matching @id. If none
733 * found, it returns NULL.
735 static struct device *
736 parse_tree_node(struct device *parent, int index, struct hardware_path *modpath)
738 struct parse_tree_data d = {
743 struct recurse_struct recurse_data = {
748 if (device_for_each_child(parent, &recurse_data, descend_children))
755 * hwpath_to_device - Finds the generic device corresponding to a given hardware path.
756 * @modpath: the hardware path.
757 * @return: The target device, NULL if not found.
759 struct device *hwpath_to_device(struct hardware_path *modpath)
762 struct device *parent = &root;
763 for (i = 0; i < 6; i++) {
764 if (modpath->bc[i] == -1)
766 parent = parse_tree_node(parent, i, modpath);
770 if (dev_is_pci(parent)) /* pci devices already parse MOD */
773 return parse_tree_node(parent, 6, modpath);
775 EXPORT_SYMBOL(hwpath_to_device);
778 * device_to_hwpath - Populates the hwpath corresponding to the given device.
779 * @param dev the target device
780 * @param path pointer to a previously allocated hwpath struct to be filled in
782 void device_to_hwpath(struct device *dev, struct hardware_path *path)
784 struct parisc_device *padev;
785 if (dev->bus == &parisc_bus_type) {
786 padev = to_parisc_device(dev);
787 get_node_path(dev->parent, path);
788 path->mod = padev->hw_path;
789 } else if (dev_is_pci(dev)) {
790 get_node_path(dev, path);
793 EXPORT_SYMBOL(device_to_hwpath);
795 #define BC_PORT_MASK 0x8
796 #define BC_LOWER_PORT 0x8
798 #define BUS_CONVERTER(dev) \
799 ((dev->id.hw_type == HPHW_IOA) || (dev->id.hw_type == HPHW_BCPORT))
801 #define IS_LOWER_PORT(dev) \
802 ((gsc_readl(dev->hpa.start + offsetof(struct bc_module, io_status)) \
803 & BC_PORT_MASK) == BC_LOWER_PORT)
805 #define MAX_NATIVE_DEVICES 64
806 #define NATIVE_DEVICE_OFFSET 0x1000
808 #define FLEX_MASK F_EXTEND(0xfffc0000)
809 #define IO_IO_LOW offsetof(struct bc_module, io_io_low)
810 #define IO_IO_HIGH offsetof(struct bc_module, io_io_high)
811 #define READ_IO_IO_LOW(dev) (unsigned long)(signed int)gsc_readl(dev->hpa.start + IO_IO_LOW)
812 #define READ_IO_IO_HIGH(dev) (unsigned long)(signed int)gsc_readl(dev->hpa.start + IO_IO_HIGH)
814 static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
815 struct device *parent);
817 static void walk_lower_bus(struct parisc_device *dev)
819 unsigned long io_io_low, io_io_high;
821 if (!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
824 if (dev->id.hw_type == HPHW_IOA) {
825 io_io_low = (unsigned long)(signed int)(READ_IO_IO_LOW(dev) << 16);
826 io_io_high = io_io_low + MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET;
828 io_io_low = (READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
829 io_io_high = (READ_IO_IO_HIGH(dev)+ ~FLEX_MASK) & FLEX_MASK;
832 walk_native_bus(io_io_low, io_io_high, &dev->dev);
836 * walk_native_bus -- Probe a bus for devices
837 * @io_io_low: Base address of this bus.
838 * @io_io_high: Last address of this bus.
839 * @parent: The parent bus device.
841 * A native bus (eg Runway or GSC) may have up to 64 devices on it,
842 * spaced at intervals of 0x1000 bytes. PDC may not inform us of these
843 * devices, so we have to probe for them. Unfortunately, we may find
844 * devices which are not physically connected (such as extra serial &
845 * keyboard ports). This problem is not yet solved.
847 static void __init walk_native_bus(unsigned long io_io_low,
848 unsigned long io_io_high, struct device *parent)
850 int i, devices_found = 0;
851 unsigned long hpa = io_io_low;
852 struct hardware_path path;
854 get_node_path(parent, &path);
856 for(i = 0; i < MAX_NATIVE_DEVICES; i++, hpa += NATIVE_DEVICE_OFFSET) {
857 struct parisc_device *dev;
859 /* Was the device already added by Firmware? */
860 dev = find_device_by_addr(hpa);
863 dev = alloc_pa_dev(hpa, &path);
867 register_parisc_device(dev);
872 } while(!devices_found && hpa < io_io_high);
875 #define CENTRAL_BUS_ADDR F_EXTEND(0xfff80000)
878 * walk_central_bus - Find devices attached to the central bus
880 * PDC doesn't tell us about all devices in the system. This routine
881 * finds devices connected to the central bus.
883 void __init walk_central_bus(void)
885 walk_native_bus(CENTRAL_BUS_ADDR,
886 CENTRAL_BUS_ADDR + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET),
890 static void print_parisc_device(struct parisc_device *dev)
895 print_pa_hwpath(dev, hw_path);
896 pr_info("%d. %s at 0x%px [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
897 ++count, dev->name, (void*) dev->hpa.start, hw_path, dev->id.hw_type,
898 dev->id.hversion_rev, dev->id.hversion, dev->id.sversion);
900 if (dev->num_addrs) {
902 pr_cont(", additional addresses: ");
903 for (k = 0; k < dev->num_addrs; k++)
904 pr_cont("0x%lx ", dev->addr[k]);
910 * init_parisc_bus - Some preparation to be done before inventory
912 void __init init_parisc_bus(void)
914 if (bus_register(&parisc_bus_type))
915 panic("Could not register PA-RISC bus type\n");
916 if (device_register(&root))
917 panic("Could not register PA-RISC root device\n");
921 static __init void qemu_header(void)
926 pr_info("--- cut here ---\n");
927 pr_info("/* AUTO-GENERATED HEADER FILE FOR SEABIOS FIRMWARE */\n");
928 pr_cont("/* generated with Linux kernel */\n");
929 pr_cont("/* search for PARISC_QEMU_MACHINE_HEADER in Linux */\n\n");
931 pr_info("#define PARISC_MODEL \"%s\"\n\n",
932 boot_cpu_data.pdc.sys_model_name);
934 pr_info("#define PARISC_PDC_MODEL 0x%lx, 0x%lx, 0x%lx, "
935 "0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx\n\n",
936 #define p ((unsigned long *)&boot_cpu_data.pdc.model)
937 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
940 pr_info("#define PARISC_PDC_VERSION 0x%04lx\n\n",
941 boot_cpu_data.pdc.versions);
943 pr_info("#define PARISC_PDC_CPUID 0x%04lx\n\n",
944 boot_cpu_data.pdc.cpuid);
946 pr_info("#define PARISC_PDC_CAPABILITIES 0x%04lx\n\n",
947 boot_cpu_data.pdc.capabilities);
949 pr_info("#define PARISC_PDC_ENTRY_ORG 0x%04lx\n\n",
951 (unsigned long)(PAGE0->mem_pdc_hi) << 32 |
953 (unsigned long)PAGE0->mem_pdc);
955 pr_info("#define PARISC_PDC_CACHE_INFO");
956 p = (unsigned long *) &cache_info;
957 for (num = 0; num < sizeof(cache_info); num += sizeof(unsigned long)) {
958 if (((num % 5) == 0)) {
968 static __init int qemu_print_hpa(struct device *lin_dev, void *data)
970 struct parisc_device *dev = to_parisc_device(lin_dev);
971 unsigned long hpa = dev->hpa.start;
973 pr_cont("\t{\t.hpa = 0x%08lx,\\\n", hpa);
974 pr_cont("\t\t.iodc = &iodc_data_hpa_%08lx,\\\n", hpa);
975 pr_cont("\t\t.mod_info = &mod_info_hpa_%08lx,\\\n", hpa);
976 pr_cont("\t\t.mod_path = &mod_path_hpa_%08lx,\\\n", hpa);
977 pr_cont("\t\t.num_addr = HPA_%08lx_num_addr,\\\n", hpa);
978 pr_cont("\t\t.add_addr = { HPA_%08lx_add_addr } },\\\n", hpa);
983 static __init void qemu_footer(void)
985 pr_info("\n\n#define PARISC_DEVICE_LIST \\\n");
986 for_each_padev(qemu_print_hpa, NULL);
987 pr_cont("\t{ 0, }\n");
988 pr_info("--- cut here ---\n");
991 /* print iodc data of the various hpa modules for qemu inclusion */
992 static __init int qemu_print_iodc_data(struct device *lin_dev, void *data)
994 struct parisc_device *dev = to_parisc_device(lin_dev);
996 unsigned long hpa = dev->hpa.start;
998 struct pdc_iodc iodc_data;
1001 struct pdc_system_map_mod_info pdc_mod_info;
1002 struct pdc_module_path mod_path;
1004 status = pdc_iodc_read(&count, hpa, 0,
1005 &iodc_data, sizeof(iodc_data));
1006 if (status != PDC_OK) {
1007 pr_info("No IODC data for hpa 0x%08lx\n", hpa);
1013 pr_info("#define HPA_%08lx_DESCRIPTION \"%s\"\n",
1014 hpa, parisc_hardware_description(&dev->id));
1018 status = pdc_system_map_find_mods(&pdc_mod_info,
1019 &mod_path, mod_index++);
1020 } while (status == PDC_OK && pdc_mod_info.mod_addr != hpa);
1022 pr_info("static struct pdc_system_map_mod_info"
1023 " mod_info_hpa_%08lx = {\n", hpa);
1024 #define DO(member) \
1025 pr_cont("\t." #member " = 0x%x,\n", \
1026 (unsigned int)pdc_mod_info.member)
1032 pr_info("static struct pdc_module_path "
1033 "mod_path_hpa_%08lx = {\n", hpa);
1034 pr_cont("\t.path = { ");
1035 pr_cont(".flags = 0x%x, ", mod_path.path.flags);
1036 pr_cont(".bc = { 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x }, ",
1037 (unsigned char)mod_path.path.bc[0],
1038 (unsigned char)mod_path.path.bc[1],
1039 (unsigned char)mod_path.path.bc[2],
1040 (unsigned char)mod_path.path.bc[3],
1041 (unsigned char)mod_path.path.bc[4],
1042 (unsigned char)mod_path.path.bc[5]);
1043 pr_cont(".mod = 0x%x ", mod_path.path.mod);
1045 pr_cont("\t.layers = { 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x }\n",
1046 mod_path.layers[0], mod_path.layers[1], mod_path.layers[2],
1047 mod_path.layers[3], mod_path.layers[4], mod_path.layers[5]);
1050 pr_info("static struct pdc_iodc iodc_data_hpa_%08lx = {\n", hpa);
1051 #define DO(member) \
1052 pr_cont("\t." #member " = 0x%04lx,\n", \
1053 (unsigned long)iodc_data.member)
1067 pr_cont("\t/* pad: 0x%04x, 0x%04x */\n",
1068 iodc_data.pad[0], iodc_data.pad[1]);
1071 pr_info("#define HPA_%08lx_num_addr %d\n", hpa, dev->num_addrs);
1072 pr_info("#define HPA_%08lx_add_addr ", hpa);
1074 if (dev->num_addrs == 0)
1076 while (count < dev->num_addrs) {
1077 pr_cont("0x%08lx, ", dev->addr[count]);
1087 static int print_one_device(struct device * dev, void * data)
1089 struct parisc_device * pdev = to_parisc_device(dev);
1092 print_parisc_device(pdev);
1097 * print_parisc_devices - Print out a list of devices found in this system
1099 void __init print_parisc_devices(void)
1101 for_each_padev(print_one_device, NULL);
1102 #define PARISC_QEMU_MACHINE_HEADER 0
1103 if (PARISC_QEMU_MACHINE_HEADER) {
1105 for_each_padev(qemu_print_iodc_data, NULL);