+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2003-2004 Linux Networx
+ * (Written by Eric Biederman <ebiederman@lnxi.com> for Linux Networx)
+ * Copyright (C) 2003 Greg Watson <jarrah@users.sourceforge.net>
+ * Copyright (C) 2004 Li-Ta Lo <ollie@lanl.gov>
+ * Copyright (C) 2005-2006 Tyan
+ * (Written by Yinghai Lu <yhlu@tyan.com> for Tyan)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
#include <console/console.h>
#include <device/device.h>
#include <device/path.h>
#include <device/pci.h>
+#include <device/resource.h>
#include <string.h>
+/**
+ * See if a device structure exists for path.
+ *
+ * @param parent The bus to find the device on.
+ * @param path The relative path from the bus to the appropriate device.
+ * @return Pointer to a device structure for the device on bus at path
+ * or 0/NULL if no device is found.
+ */
+device_t find_dev_path(struct bus *parent, struct device_path *path)
+{
+ device_t child;
+ for (child = parent->children; child; child = child->sibling) {
+ if (path_eq(path, &child->path))
+ break;
+ }
+ return child;
+}
/**
- * See if a device structure already exists and if not allocate it
- * @param bus The bus to find the device on
- * @param path The relative path from the bus to the appropriate device
- * @return pointer a device structure for the device on bus at path
+ * See if a device structure already exists and if not allocate it.
+ *
+ * @param parent The bus to find the device on.
+ * @param path The relative path from the bus to the appropriate device.
+ * @return Pointer to a device structure for the device on bus at path.
*/
device_t alloc_find_dev(struct bus *parent, struct device_path *path)
{
device_t child;
- for(child = parent->children; child; child = child->sibling) {
- if (path_eq(path, &child->path)) {
- return child;
+ child = find_dev_path(parent, path);
+ if (!child)
+ child = alloc_dev(parent, path);
+ return child;
+}
+
+/**
+ * Given a PCI bus and a devfn number, find the device structure.
+ *
+ * @param bus The bus number.
+ * @param devfn A device/function number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
+ */
+struct device *dev_find_slot(unsigned int bus, unsigned int devfn)
+{
+ struct device *dev, *result;
+
+ result = 0;
+ for (dev = all_devices; dev; dev = dev->next) {
+ if ((dev->path.type == DEVICE_PATH_PCI) &&
+ (dev->bus->secondary == bus) &&
+ (dev->path.pci.devfn == devfn)) {
+ result = dev;
+ break;
}
}
- return alloc_dev(parent, path);
+ return result;
}
/**
- * Given a bus and a devfn number, find the device structure
- * @param bus The bus number
- * @param devfn a device/function number
- * @return pointer to the device structure
+ * Given an SMBus bus and a device number, find the device structure.
+ *
+ * @param bus The bus number.
+ * @param addr A device number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
*/
-struct device *dev_find_slot(unsigned int bus, unsigned int devfn)
+struct device *dev_find_slot_on_smbus(unsigned int bus, unsigned int addr)
{
- struct device *dev;
+ struct device *dev, *result;
+
+ result = 0;
+ for (dev = all_devices; dev; dev = dev->next) {
+ if ((dev->path.type == DEVICE_PATH_I2C) &&
+ (dev->bus->secondary == bus) &&
+ (dev->path.i2c.device == addr)) {
+ result = dev;
+ break;
+ }
+ }
+ return result;
+}
+
+/**
+ * Given a Local APIC ID, find the device structure.
+ *
+ * @param apic_id The Local APIC ID number.
+ * @return Pointer to the device structure (if found), 0 otherwise.
+ */
+device_t dev_find_lapic(unsigned apic_id)
+{
+ device_t dev, result = NULL;
for (dev = all_devices; dev; dev = dev->next) {
- if ((dev->bus->secondary == bus) &&
- (dev->path.u.pci.devfn == devfn)) {
+ if (dev->path.type == DEVICE_PATH_APIC &&
+ dev->path.apic.apic_id == apic_id) {
+ result = dev;
break;
}
}
- return dev;
+ return result;
}
-/** Find a device of a given vendor and type
- * @param vendor Vendor ID (e.g. 0x8086 for Intel)
- * @param device Device ID
- * @param from Pointer to the device structure, used as a starting point
- * in the linked list of all_devices, which can be 0 to start at the
- * head of the list (i.e. all_devices)
- * @return Pointer to the device struct
+/**
+ * Find a device of a given vendor and type.
+ *
+ * @param vendor A PCI vendor ID (e.g. 0x8086 for Intel).
+ * @param device A PCI device ID.
+ * @param from Pointer to the device structure, used as a starting point in
+ * the linked list of all_devices, which can be 0 to start at the
+ * head of the list (i.e. all_devices).
+ * @return Pointer to the device struct.
*/
-struct device *dev_find_device(unsigned int vendor, unsigned int device, struct device *from)
+struct device *dev_find_device(u16 vendor, u16 device, struct device *from)
{
if (!from)
from = all_devices;
else
from = from->next;
+
while (from && (from->vendor != vendor || from->device != device))
from = from->next;
+
return from;
}
-/** Find a device of a given class
- * @param class Class of the device
- * @param from Pointer to the device structure, used as a starting point
- * in the linked list of all_devices, which can be 0 to start at the
- * head of the list (i.e. all_devices)
- * @return Pointer to the device struct
+/**
+ * Find a device of a given class.
+ *
+ * @param class Class of the device.
+ * @param from Pointer to the device structure, used as a starting point in
+ * the linked list of all_devices, which can be 0 to start at the
+ * head of the list (i.e. all_devices).
+ * @return Pointer to the device struct.
*/
struct device *dev_find_class(unsigned int class, struct device *from)
{
from = all_devices;
else
from = from->next;
- while (from && from->class != class)
+
+ while (from && (from->class & 0xffffff00) != class)
from = from->next;
+
return from;
}
-
+/*
+ * Warning: This function uses a static buffer. Don't call it more than once
+ * from the same print statement!
+ */
const char *dev_path(device_t dev)
{
static char buffer[DEVICE_PATH_MAX];
+
buffer[0] = '\0';
if (!dev) {
memcpy(buffer, "<null>", 7);
- }
- else {
+ } else {
switch(dev->path.type) {
+ case DEVICE_PATH_ROOT:
+ memcpy(buffer, "Root Device", 12);
+ break;
case DEVICE_PATH_PCI:
+#if CONFIG_PCI_BUS_SEGN_BITS
+ sprintf(buffer, "PCI: %04x:%02x:%02x.%01x",
+ dev->bus->secondary >> 8,
+ dev->bus->secondary & 0xff,
+ PCI_SLOT(dev->path.pci.devfn),
+ PCI_FUNC(dev->path.pci.devfn));
+#else
sprintf(buffer, "PCI: %02x:%02x.%01x",
- dev->bus->secondary,
- PCI_SLOT(dev->path.u.pci.devfn), PCI_FUNC(dev->path.u.pci.devfn));
+ dev->bus->secondary,
+ PCI_SLOT(dev->path.pci.devfn),
+ PCI_FUNC(dev->path.pci.devfn));
+#endif
break;
case DEVICE_PATH_PNP:
sprintf(buffer, "PNP: %04x.%01x",
- dev->path.u.pnp.port, dev->path.u.pnp.device);
+ dev->path.pnp.port, dev->path.pnp.device);
break;
case DEVICE_PATH_I2C:
- sprintf(buffer, "I2C: %02x",
- dev->path.u.i2c.device);
+ sprintf(buffer, "I2C: %02x:%02x",
+ dev->bus->secondary,
+ dev->path.i2c.device);
+ break;
+ case DEVICE_PATH_APIC:
+ sprintf(buffer, "APIC: %02x",
+ dev->path.apic.apic_id);
+ break;
+ case DEVICE_PATH_PCI_DOMAIN:
+ sprintf(buffer, "PCI_DOMAIN: %04x",
+ dev->path.pci_domain.domain);
+ break;
+ case DEVICE_PATH_APIC_CLUSTER:
+ sprintf(buffer, "APIC_CLUSTER: %01x",
+ dev->path.apic_cluster.cluster);
+ break;
+ case DEVICE_PATH_CPU:
+ sprintf(buffer, "CPU: %02x", dev->path.cpu.id);
+ break;
+ case DEVICE_PATH_CPU_BUS:
+ sprintf(buffer, "CPU_BUS: %02x", dev->path.cpu_bus.id);
break;
default:
- printk_err("Unknown device path type: %d\n", dev->path.type);
+ printk(BIOS_ERR, "Unknown device path type: %d\n",
+ dev->path.type);
break;
}
}
return buffer;
}
+const char *bus_path(struct bus *bus)
+{
+ static char buffer[BUS_PATH_MAX];
+ sprintf(buffer, "%s,%d", dev_path(bus->dev), bus->link_num);
+ return buffer;
+}
+
int path_eq(struct device_path *path1, struct device_path *path2)
{
int equal = 0;
- if (path1->type == path2->type) {
- switch(path1->type) {
- case DEVICE_PATH_NONE:
- break;
- case DEVICE_PATH_PCI:
- equal = path1->u.pci.devfn == path2->u.pci.devfn;
- break;
- case DEVICE_PATH_PNP:
- equal = (path1->u.pnp.port == path2->u.pnp.port) &&
- (path1->u.pnp.device == path2->u.pnp.device);
- break;
- case DEVICE_PATH_I2C:
- equal = (path1->u.i2c.device == path2->u.i2c.device);
- break;
- default:
- printk_err("Uknown device type: %d\n", path1->type);
+
+ if (path1->type != path2->type)
+ return 0;
+
+ switch (path1->type) {
+ case DEVICE_PATH_NONE:
+ break;
+ case DEVICE_PATH_ROOT:
+ equal = 1;
+ break;
+ case DEVICE_PATH_PCI:
+ equal = (path1->pci.devfn == path2->pci.devfn);
+ break;
+ case DEVICE_PATH_PNP:
+ equal = (path1->pnp.port == path2->pnp.port) &&
+ (path1->pnp.device == path2->pnp.device);
+ break;
+ case DEVICE_PATH_I2C:
+ equal = (path1->i2c.device == path2->i2c.device);
+ break;
+ case DEVICE_PATH_APIC:
+ equal = (path1->apic.apic_id == path2->apic.apic_id);
+ break;
+ case DEVICE_PATH_PCI_DOMAIN:
+ equal = (path1->pci_domain.domain == path2->pci_domain.domain);
+ break;
+ case DEVICE_PATH_APIC_CLUSTER:
+ equal = (path1->apic_cluster.cluster
+ == path2->apic_cluster.cluster);
+ break;
+ case DEVICE_PATH_CPU:
+ equal = (path1->cpu.id == path2->cpu.id);
+ break;
+ case DEVICE_PATH_CPU_BUS:
+ equal = (path1->cpu_bus.id == path2->cpu_bus.id);
+ break;
+ default:
+ printk(BIOS_ERR, "Uknown device type: %d\n", path1->type);
+ break;
+ }
+
+ return equal;
+}
+
+/**
+ * Allocate 64 more resources to the free list.
+ *
+ * @return TODO.
+ */
+static int allocate_more_resources(void)
+{
+ int i;
+ struct resource *new_res_list;
+
+ new_res_list = malloc(64 * sizeof(*new_res_list));
+
+ if (new_res_list == NULL)
+ return 0;
+
+ memset(new_res_list, 0, 64 * sizeof(*new_res_list));
+
+ for (i = 0; i < 64 - 1; i++)
+ new_res_list[i].next = &new_res_list[i+1];
+
+ free_resources = new_res_list;
+ return 1;
+}
+
+/**
+ * Remove resource res from the device's list and add it to the free list.
+ *
+ * @param dev TODO
+ * @param res TODO
+ * @param prev TODO
+ * @return TODO.
+ */
+static void free_resource(device_t dev, struct resource *res,
+ struct resource *prev)
+{
+ if (prev)
+ prev->next = res->next;
+ else
+ dev->resource_list = res->next;
+
+ res->next = free_resources;
+ free_resources = res;
+}
+
+/**
+ * See if we have unused but allocated resource structures.
+ *
+ * If so remove the allocation.
+ *
+ * @param dev The device to find the resource on.
+ */
+void compact_resources(device_t dev)
+{
+ struct resource *res, *next, *prev = NULL;
+
+ /* Move all of the free resources to the end */
+ for (res = dev->resource_list; res; res = next) {
+ next = res->next;
+ if (!res->flags)
+ free_resource(dev, res, prev);
+ else
+ prev = res;
+ }
+}
+
+/**
+ * See if a resource structure already exists for a given index.
+ *
+ * @param dev The device to find the resource on.
+ * @param index The index of the resource on the device.
+ * @return The resource, if it already exists.
+ */
+struct resource *probe_resource(device_t dev, unsigned index)
+{
+ struct resource *res;
+
+ /* See if there is a resource with the appropriate index */
+ for (res = dev->resource_list; res; res = res->next) {
+ if (res->index == index)
break;
+ }
+
+ return res;
+}
+
+/**
+ * See if a resource structure already exists for a given index and if not
+ * allocate one.
+ *
+ * Then initialize the initialize the resource to default values.
+ *
+ * @param dev The device to find the resource on.
+ * @param index The index of the resource on the device.
+ * @return TODO.
+ */
+struct resource *new_resource(device_t dev, unsigned index)
+{
+ struct resource *resource, *tail;
+
+ /* First move all of the free resources to the end. */
+ compact_resources(dev);
+
+ /* See if there is a resource with the appropriate index. */
+ resource = probe_resource(dev, index);
+ if (!resource) {
+ if (free_resources == NULL && !allocate_more_resources())
+ die("Couldn't allocate more resources.");
+
+ resource = free_resources;
+ free_resources = free_resources->next;
+ memset(resource, 0, sizeof(*resource));
+ resource->next = NULL;
+ tail = dev->resource_list;
+ if (tail) {
+ while (tail->next) tail = tail->next;
+ tail->next = resource;
+ } else {
+ dev->resource_list = resource;
}
}
- return equal;
+
+ /* Initialize the resource values. */
+ if (!(resource->flags & IORESOURCE_FIXED)) {
+ resource->flags = 0;
+ resource->base = 0;
+ }
+ resource->size = 0;
+ resource->limit = 0;
+ resource->index = index;
+ resource->align = 0;
+ resource->gran = 0;
+
+ return resource;
+}
+
+/**
+ * Return an existing resource structure for a given index.
+ *
+ * @param dev The device to find the resource on.
+ * @param index The index of the resource on the device.
+ * return TODO.
+ */
+struct resource *find_resource(device_t dev, unsigned index)
+{
+ struct resource *resource;
+
+ /* See if there is a resource with the appropriate index. */
+ resource = probe_resource(dev, index);
+ if (!resource) {
+ printk(BIOS_EMERG, "%s missing resource: %02x\n",
+ dev_path(dev), index);
+ die("");
+ }
+ return resource;
+}
+
+/**
+ * Round a number up to the next multiple of gran.
+ *
+ * @param val The starting value.
+ * @param gran Granularity we are aligning the number to.
+ * @return The aligned value.
+ */
+static resource_t align_up(resource_t val, unsigned long gran)
+{
+ resource_t mask;
+ mask = (1ULL << gran) - 1ULL;
+ val += mask;
+ val &= ~mask;
+ return val;
+}
+
+/**
+ * Round a number up to the previous multiple of gran.
+ *
+ * @param val The starting value.
+ * @param gran Granularity we are aligning the number to.
+ * @return The aligned value.
+ */
+static resource_t align_down(resource_t val, unsigned long gran)
+{
+ resource_t mask;
+ mask = (1ULL << gran) - 1ULL;
+ val &= ~mask;
+ return val;
+}
+
+/**
+ * Compute the maximum address that is part of a resource.
+ *
+ * @param resource The resource whose limit is desired.
+ * @return The end.
+ */
+resource_t resource_end(struct resource *resource)
+{
+ resource_t base, end;
+
+ /* Get the base address. */
+ base = resource->base;
+
+ /*
+ * For a non bridge resource granularity and alignment are the same.
+ * For a bridge resource align is the largest needed alignment below
+ * the bridge. While the granularity is simply how many low bits of
+ * the address cannot be set.
+ */
+
+ /* Get the end (rounded up). */
+ end = base + align_up(resource->size, resource->gran) - 1;
+
+ return end;
+}
+
+/**
+ * Compute the maximum legal value for resource->base.
+ *
+ * @param resource The resource whose maximum is desired.
+ * @return The maximum.
+ */
+resource_t resource_max(struct resource *resource)
+{
+ resource_t max;
+
+ max = align_down(resource->limit - resource->size + 1, resource->align);
+
+ return max;
+}
+
+/**
+ * Return the resource type of a resource.
+ *
+ * @param resource The resource type to decode.
+ * @return TODO.
+ */
+const char *resource_type(struct resource *resource)
+{
+ static char buffer[RESOURCE_TYPE_MAX];
+ sprintf(buffer, "%s%s%s%s",
+ ((resource->flags & IORESOURCE_READONLY) ? "ro" : ""),
+ ((resource->flags & IORESOURCE_PREFETCH) ? "pref" : ""),
+ ((resource->flags == 0) ? "unused" :
+ (resource->flags & IORESOURCE_IO) ? "io" :
+ (resource->flags & IORESOURCE_DRQ) ? "drq" :
+ (resource->flags & IORESOURCE_IRQ) ? "irq" :
+ (resource->flags & IORESOURCE_MEM) ? "mem" : "??????"),
+ ((resource->flags & IORESOURCE_PCI64) ? "64" : ""));
+ return buffer;
+}
+
+/**
+ * Print the resource that was just stored.
+ *
+ * @param dev The device the stored resorce lives on.
+ * @param resource The resource that was just stored.
+ * @param comment TODO
+ */
+void report_resource_stored(device_t dev, struct resource *resource,
+ const char *comment)
+{
+ char buf[10];
+ unsigned long long base, end;
+
+ if (!(resource->flags & IORESOURCE_STORED))
+ return;
+
+ base = resource->base;
+ end = resource_end(resource);
+ buf[0] = '\0';
+
+ if (resource->flags & IORESOURCE_PCI_BRIDGE) {
+#if CONFIG_PCI_BUS_SEGN_BITS
+ sprintf(buf, "bus %04x:%02x ", dev->bus->secondary >> 8,
+ dev->link_list->secondary & 0xff);
+#else
+ sprintf(buf, "bus %02x ", dev->link_list->secondary);
+#endif
+ }
+ printk(BIOS_DEBUG, "%s %02lx <- [0x%010llx - 0x%010llx] size 0x%08llx "
+ "gran 0x%02x %s%s%s\n", dev_path(dev), resource->index,
+ base, end, resource->size, resource->gran, buf,
+ resource_type(resource), comment);
+}
+
+void search_bus_resources(struct bus *bus, unsigned long type_mask,
+ unsigned long type, resource_search_t search,
+ void *gp)
+{
+ struct device *curdev;
+
+ for (curdev = bus->children; curdev; curdev = curdev->sibling) {
+ struct resource *res;
+
+ /* Ignore disabled devices. */
+ if (!curdev->enabled)
+ continue;
+
+ for (res = curdev->resource_list; res; res = res->next) {
+ /* If it isn't the right kind of resource ignore it. */
+ if ((res->flags & type_mask) != type)
+ continue;
+
+ /* If it is a subtractive resource recurse. */
+ if (res->flags & IORESOURCE_SUBTRACTIVE) {
+ struct bus * subbus;
+ for (subbus = curdev->link_list; subbus;
+ subbus = subbus->next)
+ if (subbus->link_num
+ == IOINDEX_SUBTRACTIVE_LINK(res->index))
+ break;
+ if (!subbus) /* Why can subbus be NULL? */
+ break;
+ search_bus_resources(subbus, type_mask, type,
+ search, gp);
+ continue;
+ }
+ search(gp, curdev, res);
+ }
+ }
+}
+
+void search_global_resources(unsigned long type_mask, unsigned long type,
+ resource_search_t search, void *gp)
+{
+ struct device *curdev;
+
+ for (curdev = all_devices; curdev; curdev = curdev->next) {
+ struct resource *res;
+
+ /* Ignore disabled devices. */
+ if (!curdev->enabled)
+ continue;
+
+ for (res = curdev->resource_list; res; res = res->next) {
+ /* If it isn't the right kind of resource ignore it. */
+ if ((res->flags & type_mask) != type)
+ continue;
+
+ /* If it is a subtractive resource ignore it. */
+ if (res->flags & IORESOURCE_SUBTRACTIVE)
+ continue;
+
+ search(gp, curdev, res);
+ }
+ }
+}
+
+void dev_set_enabled(device_t dev, int enable)
+{
+ if (dev->enabled == enable)
+ return;
+
+ dev->enabled = enable;
+ if (dev->ops && dev->ops->enable) {
+ dev->ops->enable(dev);
+ } else if (dev->chip_ops && dev->chip_ops->enable_dev) {
+ dev->chip_ops->enable_dev(dev);
+ }
+}
+
+void disable_children(struct bus *bus)
+{
+ device_t child;
+
+ for (child = bus->children; child; child = child->sibling) {
+ struct bus *link;
+ for (link = child->link_list; link; link = link->next)
+ disable_children(link);
+ dev_set_enabled(child, 0);
+ }
+}
+
+static void resource_tree(struct device *root, int debug_level, int depth)
+{
+ int i = 0;
+ struct device *child;
+ struct bus *link;
+ struct resource *res;
+ char indent[30]; /* If your tree has more levels, it's wrong. */
+
+ for (i = 0; i < depth + 1 && i < 29; i++)
+ indent[i] = ' ';
+ indent[i] = '\0';
+
+ do_printk(BIOS_DEBUG, "%s%s", indent, dev_path(root));
+ if (root->link_list && root->link_list->children)
+ do_printk(BIOS_DEBUG, " child on link 0 %s",
+ dev_path(root->link_list->children));
+ do_printk(BIOS_DEBUG, "\n");
+
+ for (res = root->resource_list; res; res = res->next) {
+ do_printk(debug_level, "%s%s resource base %llx size %llx "
+ "align %d gran %d limit %llx flags %lx index %lx\n",
+ indent, dev_path(root), res->base, res->size,
+ res->align, res->gran, res->limit, res->flags,
+ res->index);
+ }
+
+ for (link = root->link_list; link; link = link->next) {
+ for (child = link->children; child; child = child->sibling)
+ resource_tree(child, debug_level, depth + 1);
+ }
+}
+
+void print_resource_tree(struct device *root, int debug_level, const char *msg)
+{
+ /* Bail if root is null. */
+ if (!root) {
+ do_printk(debug_level, "%s passed NULL for root!\n", __func__);
+ return;
+ }
+
+ /* Bail if not printing to screen. */
+ if (!do_printk(debug_level, "Show resources in subtree (%s)...%s\n",
+ dev_path(root), msg))
+ return;
+
+ resource_tree(root, debug_level, 0);
+}
+
+void show_devs_tree(struct device *dev, int debug_level, int depth, int linknum)
+{
+ char depth_str[20] = "";
+ int i;
+ struct device *sibling;
+ struct bus *link;
+
+ for (i = 0; i < depth; i++)
+ depth_str[i] = ' ';
+ depth_str[i] = '\0';
+
+ do_printk(debug_level, "%s%s: enabled %d\n",
+ depth_str, dev_path(dev), dev->enabled);
+
+ for (link = dev->link_list; link; link = link->next) {
+ for (sibling = link->children; sibling;
+ sibling = sibling->sibling)
+ show_devs_tree(sibling, debug_level, depth + 1, i);
+ }
+}
+
+void show_all_devs_tree(int debug_level, const char *msg)
+{
+ /* Bail if not printing to screen. */
+ if (!do_printk(debug_level, "Show all devs in tree form...%s\n", msg))
+ return;
+ show_devs_tree(all_devices, debug_level, 0, -1);
+}
+
+void show_devs_subtree(struct device *root, int debug_level, const char *msg)
+{
+ /* Bail if not printing to screen. */
+ if (!do_printk(debug_level, "Show all devs in subtree %s...%s\n",
+ dev_path(root), msg))
+ return;
+ do_printk(debug_level, "%s\n", msg);
+ show_devs_tree(root, debug_level, 0, -1);
+}
+
+void show_all_devs(int debug_level, const char *msg)
+{
+ struct device *dev;
+
+ /* Bail if not printing to screen. */
+ if (!do_printk(debug_level, "Show all devs...%s\n", msg))
+ return;
+ for (dev = all_devices; dev; dev = dev->next) {
+ do_printk(debug_level, "%s: enabled %d\n",
+ dev_path(dev), dev->enabled);
+ }
+}
+
+void show_one_resource(int debug_level, struct device *dev,
+ struct resource *resource, const char *comment)
+{
+ char buf[10];
+ unsigned long long base, end;
+ base = resource->base;
+ end = resource_end(resource);
+ buf[0] = '\0';
+
+/*
+ if (resource->flags & IORESOURCE_BRIDGE) {
+#if CONFIG_PCI_BUS_SEGN_BITS
+ sprintf(buf, "bus %04x:%02x ", dev->bus->secondary >> 8,
+ dev->link[0].secondary & 0xff);
+#else
+ sprintf(buf, "bus %02x ", dev->link[0].secondary);
+#endif
+ }
+*/
+
+ do_printk(debug_level, "%s %02lx <- [0x%010llx - 0x%010llx] "
+ "size 0x%08llx gran 0x%02x %s%s%s\n", dev_path(dev),
+ resource->index, base, end, resource->size, resource->gran,
+ buf, resource_type(resource), comment);
+}
+
+void show_all_devs_resources(int debug_level, const char* msg)
+{
+ struct device *dev;
+
+ if (!do_printk(debug_level, "Show all devs with resources...%s\n", msg))
+ return;
+
+ for (dev = all_devices; dev; dev = dev->next) {
+ struct resource *res;
+ do_printk(debug_level, "%s: enabled %d\n",
+ dev_path(dev), dev->enabled);
+ for (res = dev->resource_list; res; res = res->next)
+ show_one_resource(debug_level, dev, res, "");
+ }
+}
+
+void ram_resource(device_t dev, unsigned long index,
+ unsigned long basek, unsigned long sizek)
+{
+ struct resource *resource;
+
+ if (!sizek)
+ return;
+
+ resource = new_resource(dev, index);
+ resource->base = ((resource_t)basek) << 10;
+ resource->size = ((resource_t)sizek) << 10;
+ resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \
+ IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
+}
+
+void tolm_test(void *gp, struct device *dev, struct resource *new)
+{
+ struct resource **best_p = gp;
+ struct resource *best;
+
+ best = *best_p;
+
+ if (!best || (best->base > new->base))
+ best = new;
+
+ *best_p = best;
+}
+
+u32 find_pci_tolm(struct bus *bus)
+{
+ struct resource *min = NULL;
+ u32 tolm;
+
+ search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM,
+ tolm_test, &min);
+
+ tolm = 0xffffffffUL;
+
+ if (min && tolm > min->base)
+ tolm = min->base;
+
+ return tolm;
+}
+
+/* Count of enabled CPUs */
+int dev_count_cpu(void)
+{
+ device_t cpu;
+ int count = 0;
+
+ for (cpu = all_devices; cpu; cpu = cpu->next) {
+ if ((cpu->path.type != DEVICE_PATH_APIC) ||
+ (cpu->bus->dev->path.type != DEVICE_PATH_APIC_CLUSTER))
+ continue;
+ if (!cpu->enabled)
+ continue;
+ count++;
+ }
+
+ return count;
}
projects / coreboot.git / blobdiff