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>
42 /* See comments in include/asm-parisc/pci.h */
43 const struct dma_map_ops *hppa_dma_ops __read_mostly;
44 EXPORT_SYMBOL(hppa_dma_ops);
46 static struct device root = {
47 .init_name = "parisc",
50 static inline int check_dev(struct device *dev)
52 if (dev->bus == &parisc_bus_type) {
53 struct parisc_device *pdev;
54 pdev = to_parisc_device(dev);
55 return pdev->id.hw_type != HPHW_FAULTY;
60 static struct device *
61 parse_tree_node(struct device *parent, int index, struct hardware_path *modpath);
63 struct recurse_struct {
65 int (*fn)(struct device *, void *);
68 static int descend_children(struct device * dev, void * data)
70 struct recurse_struct * recurse_data = (struct recurse_struct *)data;
72 if (recurse_data->fn(dev, recurse_data->obj))
75 return device_for_each_child(dev, recurse_data, descend_children);
79 * for_each_padev - Iterate over all devices in the tree
80 * @fn: Function to call for each device.
81 * @data: Data to pass to the called function.
83 * This performs a depth-first traversal of the tree, calling the
84 * function passed for each node. It calls the function for parents
88 static int for_each_padev(int (*fn)(struct device *, void *), void * data)
90 struct recurse_struct recurse_data = {
94 return device_for_each_child(&root, &recurse_data, descend_children);
98 * match_device - Report whether this driver can handle this device
99 * @driver: the PA-RISC driver to try
100 * @dev: the PA-RISC device to try
102 static int match_device(struct parisc_driver *driver, struct parisc_device *dev)
104 const struct parisc_device_id *ids;
106 for (ids = driver->id_table; ids->sversion; ids++) {
107 if ((ids->sversion != SVERSION_ANY_ID) &&
108 (ids->sversion != dev->id.sversion))
111 if ((ids->hw_type != HWTYPE_ANY_ID) &&
112 (ids->hw_type != dev->id.hw_type))
115 if ((ids->hversion != HVERSION_ANY_ID) &&
116 (ids->hversion != dev->id.hversion))
124 static int parisc_driver_probe(struct device *dev)
127 struct parisc_device *pa_dev = to_parisc_device(dev);
128 struct parisc_driver *pa_drv = to_parisc_driver(dev->driver);
130 rc = pa_drv->probe(pa_dev);
133 pa_dev->driver = pa_drv;
138 static int __exit parisc_driver_remove(struct device *dev)
140 struct parisc_device *pa_dev = to_parisc_device(dev);
141 struct parisc_driver *pa_drv = to_parisc_driver(dev->driver);
143 pa_drv->remove(pa_dev);
150 * register_parisc_driver - Register this driver if it can handle a device
151 * @driver: the PA-RISC driver to try
153 int register_parisc_driver(struct parisc_driver *driver)
155 /* FIXME: we need this because apparently the sti
156 * driver can be registered twice */
157 if (driver->drv.name) {
158 pr_warn("BUG: skipping previously registered driver %s\n",
163 if (!driver->probe) {
164 pr_warn("BUG: driver %s has no probe routine\n", driver->name);
168 driver->drv.bus = &parisc_bus_type;
170 /* We install our own probe and remove routines */
171 WARN_ON(driver->drv.probe != NULL);
172 WARN_ON(driver->drv.remove != NULL);
174 driver->drv.name = driver->name;
176 return driver_register(&driver->drv);
178 EXPORT_SYMBOL(register_parisc_driver);
182 struct parisc_driver * driver;
186 static int match_and_count(struct device * dev, void * data)
188 struct match_count * m = data;
189 struct parisc_device * pdev = to_parisc_device(dev);
191 if (check_dev(dev)) {
192 if (match_device(m->driver, pdev))
199 * count_parisc_driver - count # of devices this driver would match
200 * @driver: the PA-RISC driver to try
202 * Use by IOMMU support to "guess" the right size IOPdir.
203 * Formula is something like memsize/(num_iommu * entry_size).
205 int __init count_parisc_driver(struct parisc_driver *driver)
207 struct match_count m = {
212 for_each_padev(match_and_count, &m);
220 * unregister_parisc_driver - Unregister this driver from the list of drivers
221 * @driver: the PA-RISC driver to unregister
223 int unregister_parisc_driver(struct parisc_driver *driver)
225 driver_unregister(&driver->drv);
228 EXPORT_SYMBOL(unregister_parisc_driver);
232 struct parisc_device * dev;
235 static int find_device(struct device * dev, void * data)
237 struct parisc_device * pdev = to_parisc_device(dev);
238 struct find_data * d = (struct find_data*)data;
240 if (check_dev(dev)) {
241 if (pdev->hpa.start == d->hpa) {
249 static struct parisc_device *find_device_by_addr(unsigned long hpa)
251 struct find_data d = {
256 ret = for_each_padev(find_device, &d);
257 return ret ? d.dev : NULL;
261 * find_pa_parent_type - Find a parent of a specific type
262 * @dev: The device to start searching from
263 * @type: The device type to search for.
265 * Walks up the device tree looking for a device of the specified type.
266 * If it finds it, it returns it. If not, it returns NULL.
268 const struct parisc_device *
269 find_pa_parent_type(const struct parisc_device *padev, int type)
271 const struct device *dev = &padev->dev;
272 while (dev != &root) {
273 struct parisc_device *candidate = to_parisc_device(dev);
274 if (candidate->id.hw_type == type)
283 * get_node_path fills in @path with the firmware path to the device.
284 * Note that if @node is a parisc device, we don't fill in the 'mod' field.
285 * This is because both callers pass the parent and fill in the mod
286 * themselves. If @node is a PCI device, we do fill it in, even though this
289 static void get_node_path(struct device *dev, struct hardware_path *path)
292 memset(&path->bc, -1, 6);
294 if (dev_is_pci(dev)) {
295 unsigned int devfn = to_pci_dev(dev)->devfn;
296 path->mod = PCI_FUNC(devfn);
297 path->bc[i--] = PCI_SLOT(devfn);
301 while (dev != &root) {
302 if (dev_is_pci(dev)) {
303 unsigned int devfn = to_pci_dev(dev)->devfn;
304 path->bc[i--] = PCI_SLOT(devfn) | (PCI_FUNC(devfn)<< 5);
305 } else if (dev->bus == &parisc_bus_type) {
306 path->bc[i--] = to_parisc_device(dev)->hw_path;
312 static char *print_hwpath(struct hardware_path *path, char *output)
315 for (i = 0; i < 6; i++) {
316 if (path->bc[i] == -1)
318 output += sprintf(output, "%u/", (unsigned char) path->bc[i]);
320 output += sprintf(output, "%u", (unsigned char) path->mod);
325 * print_pa_hwpath - Returns hardware path for PA devices
326 * dev: The device to return the path for
327 * output: Pointer to a previously-allocated array to place the path in.
329 * This function fills in the output array with a human-readable path
330 * to a PA device. This string is compatible with that used by PDC, and
331 * may be printed on the outside of the box.
333 char *print_pa_hwpath(struct parisc_device *dev, char *output)
335 struct hardware_path path;
337 get_node_path(dev->dev.parent, &path);
338 path.mod = dev->hw_path;
339 return print_hwpath(&path, output);
341 EXPORT_SYMBOL(print_pa_hwpath);
343 #if defined(CONFIG_PCI) || defined(CONFIG_ISA)
345 * get_pci_node_path - Determines the hardware path for a PCI device
346 * @pdev: The device to return the path for
347 * @path: Pointer to a previously-allocated array to place the path in.
349 * This function fills in the hardware_path structure with the route to
350 * the specified PCI device. This structure is suitable for passing to
353 void get_pci_node_path(struct pci_dev *pdev, struct hardware_path *path)
355 get_node_path(&pdev->dev, path);
357 EXPORT_SYMBOL(get_pci_node_path);
360 * print_pci_hwpath - Returns hardware path for PCI devices
361 * dev: The device to return the path for
362 * output: Pointer to a previously-allocated array to place the path in.
364 * This function fills in the output array with a human-readable path
365 * to a PCI device. This string is compatible with that used by PDC, and
366 * may be printed on the outside of the box.
368 char *print_pci_hwpath(struct pci_dev *dev, char *output)
370 struct hardware_path path;
372 get_pci_node_path(dev, &path);
373 return print_hwpath(&path, output);
375 EXPORT_SYMBOL(print_pci_hwpath);
377 #endif /* defined(CONFIG_PCI) || defined(CONFIG_ISA) */
379 static void setup_bus_id(struct parisc_device *padev)
381 struct hardware_path path;
386 get_node_path(padev->dev.parent, &path);
388 for (i = 0; i < 6; i++) {
389 if (path.bc[i] == -1)
391 output += sprintf(output, "%u:", (unsigned char) path.bc[i]);
393 sprintf(output, "%u", (unsigned char) padev->hw_path);
394 dev_set_name(&padev->dev, name);
397 struct parisc_device * __init create_tree_node(char id, struct device *parent)
399 struct parisc_device *dev = kzalloc(sizeof(*dev), GFP_KERNEL);
404 dev->id.hw_type = HPHW_FAULTY;
406 dev->dev.parent = parent;
409 dev->dev.bus = &parisc_bus_type;
410 dev->dma_mask = 0xffffffffUL; /* PARISC devices are 32-bit */
412 /* make the generic dma mask a pointer to the parisc one */
413 dev->dev.dma_mask = &dev->dma_mask;
414 dev->dev.coherent_dma_mask = dev->dma_mask;
415 if (device_register(&dev->dev)) {
423 struct match_id_data {
425 struct parisc_device * dev;
428 static int match_by_id(struct device * dev, void * data)
430 struct parisc_device * pdev = to_parisc_device(dev);
431 struct match_id_data * d = data;
433 if (pdev->hw_path == d->id) {
441 * alloc_tree_node - returns a device entry in the iotree
442 * @parent: the parent node in the tree
443 * @id: the element of the module path for this entry
445 * Checks all the children of @parent for a matching @id. If none
446 * found, it allocates a new device and returns it.
448 static struct parisc_device * __init alloc_tree_node(
449 struct device *parent, char id)
451 struct match_id_data d = {
454 if (device_for_each_child(parent, &d, match_by_id))
457 return create_tree_node(id, parent);
460 static struct parisc_device *create_parisc_device(struct hardware_path *modpath)
463 struct device *parent = &root;
464 for (i = 0; i < 6; i++) {
465 if (modpath->bc[i] == -1)
467 parent = &alloc_tree_node(parent, modpath->bc[i])->dev;
469 return alloc_tree_node(parent, modpath->mod);
472 struct parisc_device * __init
473 alloc_pa_dev(unsigned long hpa, struct hardware_path *mod_path)
476 unsigned long bytecnt;
478 struct parisc_device *dev;
481 /* Check to make sure this device has not already been added - Ryan */
482 if (find_device_by_addr(hpa) != NULL)
485 status = pdc_iodc_read(&bytecnt, hpa, 0, &iodc_data, 32);
486 if (status != PDC_OK)
489 dev = create_parisc_device(mod_path);
490 if (dev->id.hw_type != HPHW_FAULTY) {
491 pr_err("Two devices have hardware path [%s]. IODC data for second device: %7phN\n"
492 "Rearranging GSC cards sometimes helps\n",
493 parisc_pathname(dev), iodc_data);
497 dev->id.hw_type = iodc_data[3] & 0x1f;
498 dev->id.hversion = (iodc_data[0] << 4) | ((iodc_data[1] & 0xf0) >> 4);
499 dev->id.hversion_rev = iodc_data[1] & 0x0f;
500 dev->id.sversion = ((iodc_data[4] & 0x0f) << 16) |
501 (iodc_data[5] << 8) | iodc_data[6];
502 dev->hpa.start = hpa;
503 /* This is awkward. The STI spec says that gfx devices may occupy
504 * 32MB or 64MB. Unfortunately, we don't know how to tell whether
505 * it's the former or the latter. Assumptions either way can hurt us.
507 if (hpa == 0xf4000000 || hpa == 0xf8000000) {
508 dev->hpa.end = hpa + 0x03ffffff;
509 } else if (hpa == 0xf6000000 || hpa == 0xfa000000) {
510 dev->hpa.end = hpa + 0x01ffffff;
512 dev->hpa.end = hpa + 0xfff;
514 dev->hpa.flags = IORESOURCE_MEM;
515 dev->hpa.name = dev->name;
516 name = parisc_hardware_description(&dev->id) ? : "unknown";
517 snprintf(dev->name, sizeof(dev->name), "%s [%s]",
518 name, parisc_pathname(dev));
520 /* Silently fail things like mouse ports which are subsumed within
521 * the keyboard controller
523 if ((hpa & 0xfff) == 0 && insert_resource(&iomem_resource, &dev->hpa))
524 pr_warn("Unable to claim HPA %lx for device %s\n", hpa, name);
529 static int parisc_generic_match(struct device *dev, struct device_driver *drv)
531 return match_device(to_parisc_driver(drv), to_parisc_device(dev));
534 static ssize_t make_modalias(struct device *dev, char *buf)
536 const struct parisc_device *padev = to_parisc_device(dev);
537 const struct parisc_device_id *id = &padev->id;
539 return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
540 (u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
544 static int parisc_uevent(struct device *dev, struct kobj_uevent_env *env)
546 const struct parisc_device *padev;
552 padev = to_parisc_device(dev);
556 if (add_uevent_var(env, "PARISC_NAME=%s", padev->name))
559 make_modalias(dev, modalias);
560 if (add_uevent_var(env, "MODALIAS=%s", modalias))
566 #define pa_dev_attr(name, field, format_string) \
567 static ssize_t name##_show(struct device *dev, struct device_attribute *attr, char *buf) \
569 struct parisc_device *padev = to_parisc_device(dev); \
570 return sprintf(buf, format_string, padev->field); \
572 static DEVICE_ATTR_RO(name);
574 #define pa_dev_attr_id(field, format) pa_dev_attr(field, id.field, format)
576 pa_dev_attr(irq, irq, "%u\n");
577 pa_dev_attr_id(hw_type, "0x%02x\n");
578 pa_dev_attr(rev, id.hversion_rev, "0x%x\n");
579 pa_dev_attr_id(hversion, "0x%03x\n");
580 pa_dev_attr_id(sversion, "0x%05x\n");
582 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
584 return make_modalias(dev, buf);
586 static DEVICE_ATTR_RO(modalias);
588 static struct attribute *parisc_device_attrs[] = {
590 &dev_attr_hw_type.attr,
592 &dev_attr_hversion.attr,
593 &dev_attr_sversion.attr,
594 &dev_attr_modalias.attr,
597 ATTRIBUTE_GROUPS(parisc_device);
599 struct bus_type parisc_bus_type = {
601 .match = parisc_generic_match,
602 .uevent = parisc_uevent,
603 .dev_groups = parisc_device_groups,
604 .probe = parisc_driver_probe,
605 .remove = __exit_p(parisc_driver_remove),
609 * register_parisc_device - Locate a driver to manage this device.
610 * @dev: The parisc device.
612 * Search the driver list for a driver that is willing to manage
615 int __init register_parisc_device(struct parisc_device *dev)
627 * match_pci_device - Matches a pci device against a given hardware path
629 * @dev: the generic device (known to be contained by a pci_dev).
630 * @index: the current BC index
631 * @modpath: the hardware path.
632 * @return: true if the device matches the hardware path.
634 static int match_pci_device(struct device *dev, int index,
635 struct hardware_path *modpath)
637 struct pci_dev *pdev = to_pci_dev(dev);
641 /* we are at the end of the path, and on the actual device */
642 unsigned int devfn = pdev->devfn;
643 return ((modpath->bc[5] == PCI_SLOT(devfn)) &&
644 (modpath->mod == PCI_FUNC(devfn)));
647 /* index might be out of bounds for bc[] */
651 id = PCI_SLOT(pdev->devfn) | (PCI_FUNC(pdev->devfn) << 5);
652 return (modpath->bc[index] == id);
656 * match_parisc_device - Matches a parisc device against a given hardware
658 * @dev: the generic device (known to be contained by a parisc_device).
659 * @index: the current BC index
660 * @modpath: the hardware path.
661 * @return: true if the device matches the hardware path.
663 static int match_parisc_device(struct device *dev, int index,
664 struct hardware_path *modpath)
666 struct parisc_device *curr = to_parisc_device(dev);
667 char id = (index == 6) ? modpath->mod : modpath->bc[index];
669 return (curr->hw_path == id);
672 struct parse_tree_data {
674 struct hardware_path * modpath;
678 static int check_parent(struct device * dev, void * data)
680 struct parse_tree_data * d = data;
682 if (check_dev(dev)) {
683 if (dev->bus == &parisc_bus_type) {
684 if (match_parisc_device(dev, d->index, d->modpath))
686 } else if (dev_is_pci(dev)) {
687 if (match_pci_device(dev, d->index, d->modpath))
689 } else if (dev->bus == NULL) {
690 /* we are on a bus bridge */
691 struct device *new = parse_tree_node(dev, d->index, d->modpath);
696 return d->dev != NULL;
700 * parse_tree_node - returns a device entry in the iotree
701 * @parent: the parent node in the tree
702 * @index: the current BC index
703 * @modpath: the hardware_path struct to match a device against
704 * @return: The corresponding device if found, NULL otherwise.
706 * Checks all the children of @parent for a matching @id. If none
707 * found, it returns NULL.
709 static struct device *
710 parse_tree_node(struct device *parent, int index, struct hardware_path *modpath)
712 struct parse_tree_data d = {
717 struct recurse_struct recurse_data = {
722 if (device_for_each_child(parent, &recurse_data, descend_children))
729 * hwpath_to_device - Finds the generic device corresponding to a given hardware path.
730 * @modpath: the hardware path.
731 * @return: The target device, NULL if not found.
733 struct device *hwpath_to_device(struct hardware_path *modpath)
736 struct device *parent = &root;
737 for (i = 0; i < 6; i++) {
738 if (modpath->bc[i] == -1)
740 parent = parse_tree_node(parent, i, modpath);
744 if (dev_is_pci(parent)) /* pci devices already parse MOD */
747 return parse_tree_node(parent, 6, modpath);
749 EXPORT_SYMBOL(hwpath_to_device);
752 * device_to_hwpath - Populates the hwpath corresponding to the given device.
753 * @param dev the target device
754 * @param path pointer to a previously allocated hwpath struct to be filled in
756 void device_to_hwpath(struct device *dev, struct hardware_path *path)
758 struct parisc_device *padev;
759 if (dev->bus == &parisc_bus_type) {
760 padev = to_parisc_device(dev);
761 get_node_path(dev->parent, path);
762 path->mod = padev->hw_path;
763 } else if (dev_is_pci(dev)) {
764 get_node_path(dev, path);
767 EXPORT_SYMBOL(device_to_hwpath);
769 #define BC_PORT_MASK 0x8
770 #define BC_LOWER_PORT 0x8
772 #define BUS_CONVERTER(dev) \
773 ((dev->id.hw_type == HPHW_IOA) || (dev->id.hw_type == HPHW_BCPORT))
775 #define IS_LOWER_PORT(dev) \
776 ((gsc_readl(dev->hpa.start + offsetof(struct bc_module, io_status)) \
777 & BC_PORT_MASK) == BC_LOWER_PORT)
779 #define MAX_NATIVE_DEVICES 64
780 #define NATIVE_DEVICE_OFFSET 0x1000
782 #define FLEX_MASK F_EXTEND(0xfffc0000)
783 #define IO_IO_LOW offsetof(struct bc_module, io_io_low)
784 #define IO_IO_HIGH offsetof(struct bc_module, io_io_high)
785 #define READ_IO_IO_LOW(dev) (unsigned long)(signed int)gsc_readl(dev->hpa.start + IO_IO_LOW)
786 #define READ_IO_IO_HIGH(dev) (unsigned long)(signed int)gsc_readl(dev->hpa.start + IO_IO_HIGH)
788 static void walk_native_bus(unsigned long io_io_low, unsigned long io_io_high,
789 struct device *parent);
791 static void __init walk_lower_bus(struct parisc_device *dev)
793 unsigned long io_io_low, io_io_high;
795 if (!BUS_CONVERTER(dev) || IS_LOWER_PORT(dev))
798 if (dev->id.hw_type == HPHW_IOA) {
799 io_io_low = (unsigned long)(signed int)(READ_IO_IO_LOW(dev) << 16);
800 io_io_high = io_io_low + MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET;
802 io_io_low = (READ_IO_IO_LOW(dev) + ~FLEX_MASK) & FLEX_MASK;
803 io_io_high = (READ_IO_IO_HIGH(dev)+ ~FLEX_MASK) & FLEX_MASK;
806 walk_native_bus(io_io_low, io_io_high, &dev->dev);
810 * walk_native_bus -- Probe a bus for devices
811 * @io_io_low: Base address of this bus.
812 * @io_io_high: Last address of this bus.
813 * @parent: The parent bus device.
815 * A native bus (eg Runway or GSC) may have up to 64 devices on it,
816 * spaced at intervals of 0x1000 bytes. PDC may not inform us of these
817 * devices, so we have to probe for them. Unfortunately, we may find
818 * devices which are not physically connected (such as extra serial &
819 * keyboard ports). This problem is not yet solved.
821 static void __init walk_native_bus(unsigned long io_io_low,
822 unsigned long io_io_high, struct device *parent)
824 int i, devices_found = 0;
825 unsigned long hpa = io_io_low;
826 struct hardware_path path;
828 get_node_path(parent, &path);
830 for(i = 0; i < MAX_NATIVE_DEVICES; i++, hpa += NATIVE_DEVICE_OFFSET) {
831 struct parisc_device *dev;
833 /* Was the device already added by Firmware? */
834 dev = find_device_by_addr(hpa);
837 dev = alloc_pa_dev(hpa, &path);
841 register_parisc_device(dev);
846 } while(!devices_found && hpa < io_io_high);
849 #define CENTRAL_BUS_ADDR F_EXTEND(0xfff80000)
852 * walk_central_bus - Find devices attached to the central bus
854 * PDC doesn't tell us about all devices in the system. This routine
855 * finds devices connected to the central bus.
857 void __init walk_central_bus(void)
859 walk_native_bus(CENTRAL_BUS_ADDR,
860 CENTRAL_BUS_ADDR + (MAX_NATIVE_DEVICES * NATIVE_DEVICE_OFFSET),
864 static void print_parisc_device(struct parisc_device *dev)
869 print_pa_hwpath(dev, hw_path);
870 pr_info("%d. %s at %pap [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
871 ++count, dev->name, &(dev->hpa.start), hw_path, dev->id.hw_type,
872 dev->id.hversion_rev, dev->id.hversion, dev->id.sversion);
874 if (dev->num_addrs) {
876 pr_cont(", additional addresses: ");
877 for (k = 0; k < dev->num_addrs; k++)
878 pr_cont("0x%lx ", dev->addr[k]);
884 * init_parisc_bus - Some preparation to be done before inventory
886 void __init init_parisc_bus(void)
888 if (bus_register(&parisc_bus_type))
889 panic("Could not register PA-RISC bus type\n");
890 if (device_register(&root))
891 panic("Could not register PA-RISC root device\n");
895 static __init void qemu_header(void)
900 pr_info("--- cut here ---\n");
901 pr_info("/* AUTO-GENERATED HEADER FILE FOR SEABIOS FIRMWARE */\n");
902 pr_cont("/* generated with Linux kernel */\n");
903 pr_cont("/* search for PARISC_QEMU_MACHINE_HEADER in Linux */\n\n");
905 pr_info("#define PARISC_MODEL \"%s\"\n\n",
906 boot_cpu_data.pdc.sys_model_name);
908 pr_info("#define PARISC_PDC_MODEL 0x%lx, 0x%lx, 0x%lx, "
909 "0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx, 0x%lx\n\n",
910 #define p ((unsigned long *)&boot_cpu_data.pdc.model)
911 p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8]);
914 pr_info("#define PARISC_PDC_VERSION 0x%04lx\n\n",
915 boot_cpu_data.pdc.versions);
917 pr_info("#define PARISC_PDC_CPUID 0x%04lx\n\n",
918 boot_cpu_data.pdc.cpuid);
920 pr_info("#define PARISC_PDC_CAPABILITIES 0x%04lx\n\n",
921 boot_cpu_data.pdc.capabilities);
923 pr_info("#define PARISC_PDC_ENTRY_ORG 0x%04lx\n\n",
925 (unsigned long)(PAGE0->mem_pdc_hi) << 32 |
927 (unsigned long)PAGE0->mem_pdc);
929 pr_info("#define PARISC_PDC_CACHE_INFO");
930 p = (unsigned long *) &cache_info;
931 for (num = 0; num < sizeof(cache_info); num += sizeof(unsigned long)) {
932 if (((num % 5) == 0)) {
942 static __init int qemu_print_hpa(struct device *lin_dev, void *data)
944 struct parisc_device *dev = to_parisc_device(lin_dev);
945 unsigned long hpa = dev->hpa.start;
947 pr_cont("\t{\t.hpa = 0x%08lx,\\\n", hpa);
948 pr_cont("\t\t.iodc = &iodc_data_hpa_%08lx,\\\n", hpa);
949 pr_cont("\t\t.mod_info = &mod_info_hpa_%08lx,\\\n", hpa);
950 pr_cont("\t\t.mod_path = &mod_path_hpa_%08lx,\\\n", hpa);
951 pr_cont("\t\t.num_addr = HPA_%08lx_num_addr,\\\n", hpa);
952 pr_cont("\t\t.add_addr = { HPA_%08lx_add_addr } },\\\n", hpa);
957 static __init void qemu_footer(void)
959 pr_info("\n\n#define PARISC_DEVICE_LIST \\\n");
960 for_each_padev(qemu_print_hpa, NULL);
961 pr_cont("\t{ 0, }\n");
962 pr_info("--- cut here ---\n");
965 /* print iodc data of the various hpa modules for qemu inclusion */
966 static __init int qemu_print_iodc_data(struct device *lin_dev, void *data)
968 struct parisc_device *dev = to_parisc_device(lin_dev);
970 unsigned long hpa = dev->hpa.start;
972 struct pdc_iodc iodc_data;
975 struct pdc_system_map_mod_info pdc_mod_info;
976 struct pdc_module_path mod_path;
978 status = pdc_iodc_read(&count, hpa, 0,
979 &iodc_data, sizeof(iodc_data));
980 if (status != PDC_OK) {
981 pr_info("No IODC data for hpa 0x%08lx\n", hpa);
987 pr_info("#define HPA_%08lx_DESCRIPTION \"%s\"\n",
988 hpa, parisc_hardware_description(&dev->id));
992 status = pdc_system_map_find_mods(&pdc_mod_info,
993 &mod_path, mod_index++);
994 } while (status == PDC_OK && pdc_mod_info.mod_addr != hpa);
996 pr_info("static struct pdc_system_map_mod_info"
997 " mod_info_hpa_%08lx = {\n", hpa);
999 pr_cont("\t." #member " = 0x%x,\n", \
1000 (unsigned int)pdc_mod_info.member)
1006 pr_info("static struct pdc_module_path "
1007 "mod_path_hpa_%08lx = {\n", hpa);
1008 pr_cont("\t.path = { ");
1009 pr_cont(".flags = 0x%x, ", mod_path.path.flags);
1010 pr_cont(".bc = { 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x }, ",
1011 (unsigned char)mod_path.path.bc[0],
1012 (unsigned char)mod_path.path.bc[1],
1013 (unsigned char)mod_path.path.bc[2],
1014 (unsigned char)mod_path.path.bc[3],
1015 (unsigned char)mod_path.path.bc[4],
1016 (unsigned char)mod_path.path.bc[5]);
1017 pr_cont(".mod = 0x%x ", mod_path.path.mod);
1019 pr_cont("\t.layers = { 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x }\n",
1020 mod_path.layers[0], mod_path.layers[1], mod_path.layers[2],
1021 mod_path.layers[3], mod_path.layers[4], mod_path.layers[5]);
1024 pr_info("static struct pdc_iodc iodc_data_hpa_%08lx = {\n", hpa);
1025 #define DO(member) \
1026 pr_cont("\t." #member " = 0x%04lx,\n", \
1027 (unsigned long)iodc_data.member)
1041 pr_cont("\t/* pad: 0x%04x, 0x%04x */\n",
1042 iodc_data.pad[0], iodc_data.pad[1]);
1045 pr_info("#define HPA_%08lx_num_addr %d\n", hpa, dev->num_addrs);
1046 pr_info("#define HPA_%08lx_add_addr ", hpa);
1048 if (dev->num_addrs == 0)
1050 while (count < dev->num_addrs) {
1051 pr_cont("0x%08lx, ", dev->addr[count]);
1061 static int print_one_device(struct device * dev, void * data)
1063 struct parisc_device * pdev = to_parisc_device(dev);
1066 print_parisc_device(pdev);
1071 * print_parisc_devices - Print out a list of devices found in this system
1073 void __init print_parisc_devices(void)
1075 for_each_padev(print_one_device, NULL);
1076 #define PARISC_QEMU_MACHINE_HEADER 0
1077 if (PARISC_QEMU_MACHINE_HEADER) {
1079 for_each_padev(qemu_print_iodc_data, NULL);