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Diffstat (limited to 'ANDROID_3.4.5/arch/x86/pci/acpi.c')
-rw-r--r--ANDROID_3.4.5/arch/x86/pci/acpi.c489
1 files changed, 0 insertions, 489 deletions
diff --git a/ANDROID_3.4.5/arch/x86/pci/acpi.c b/ANDROID_3.4.5/arch/x86/pci/acpi.c
deleted file mode 100644
index ed2835e1..00000000
--- a/ANDROID_3.4.5/arch/x86/pci/acpi.c
+++ /dev/null
@@ -1,489 +0,0 @@
-#include <linux/pci.h>
-#include <linux/acpi.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/dmi.h>
-#include <linux/slab.h>
-#include <asm/numa.h>
-#include <asm/pci_x86.h>
-
-struct pci_root_info {
- struct acpi_device *bridge;
- char *name;
- unsigned int res_num;
- struct resource *res;
- struct list_head *resources;
- int busnum;
-};
-
-static bool pci_use_crs = true;
-
-static int __init set_use_crs(const struct dmi_system_id *id)
-{
- pci_use_crs = true;
- return 0;
-}
-
-static int __init set_nouse_crs(const struct dmi_system_id *id)
-{
- pci_use_crs = false;
- return 0;
-}
-
-static const struct dmi_system_id pci_use_crs_table[] __initconst = {
- /* http://bugzilla.kernel.org/show_bug.cgi?id=14183 */
- {
- .callback = set_use_crs,
- .ident = "IBM System x3800",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
- DMI_MATCH(DMI_PRODUCT_NAME, "x3800"),
- },
- },
- /* https://bugzilla.kernel.org/show_bug.cgi?id=16007 */
- /* 2006 AMD HT/VIA system with two host bridges */
- {
- .callback = set_use_crs,
- .ident = "ASRock ALiveSATA2-GLAN",
- .matches = {
- DMI_MATCH(DMI_PRODUCT_NAME, "ALiveSATA2-GLAN"),
- },
- },
- /* https://bugzilla.kernel.org/show_bug.cgi?id=30552 */
- /* 2006 AMD HT/VIA system with two host bridges */
- {
- .callback = set_use_crs,
- .ident = "ASUS M2V-MX SE",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
- DMI_MATCH(DMI_BOARD_NAME, "M2V-MX SE"),
- DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
- },
- },
- /* https://bugzilla.kernel.org/show_bug.cgi?id=42619 */
- {
- .callback = set_use_crs,
- .ident = "MSI MS-7253",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "MICRO-STAR INTERNATIONAL CO., LTD"),
- DMI_MATCH(DMI_BOARD_NAME, "MS-7253"),
- DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies, LTD"),
- },
- },
-
- /* Now for the blacklist.. */
-
- /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */
- {
- .callback = set_nouse_crs,
- .ident = "Dell Studio 1557",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Dell Inc."),
- DMI_MATCH(DMI_PRODUCT_NAME, "Studio 1557"),
- DMI_MATCH(DMI_BIOS_VERSION, "A09"),
- },
- },
- /* https://bugzilla.redhat.com/show_bug.cgi?id=769657 */
- {
- .callback = set_nouse_crs,
- .ident = "Thinkpad SL510",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_BOARD_NAME, "2847DFG"),
- DMI_MATCH(DMI_BIOS_VERSION, "6JET85WW (1.43 )"),
- },
- },
- {}
-};
-
-void __init pci_acpi_crs_quirks(void)
-{
- int year;
-
- if (dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL) && year < 2008)
- pci_use_crs = false;
-
- dmi_check_system(pci_use_crs_table);
-
- /*
- * If the user specifies "pci=use_crs" or "pci=nocrs" explicitly, that
- * takes precedence over anything we figured out above.
- */
- if (pci_probe & PCI_ROOT_NO_CRS)
- pci_use_crs = false;
- else if (pci_probe & PCI_USE__CRS)
- pci_use_crs = true;
-
- printk(KERN_INFO "PCI: %s host bridge windows from ACPI; "
- "if necessary, use \"pci=%s\" and report a bug\n",
- pci_use_crs ? "Using" : "Ignoring",
- pci_use_crs ? "nocrs" : "use_crs");
-}
-
-static acpi_status
-resource_to_addr(struct acpi_resource *resource,
- struct acpi_resource_address64 *addr)
-{
- acpi_status status;
- struct acpi_resource_memory24 *memory24;
- struct acpi_resource_memory32 *memory32;
- struct acpi_resource_fixed_memory32 *fixed_memory32;
-
- memset(addr, 0, sizeof(*addr));
- switch (resource->type) {
- case ACPI_RESOURCE_TYPE_MEMORY24:
- memory24 = &resource->data.memory24;
- addr->resource_type = ACPI_MEMORY_RANGE;
- addr->minimum = memory24->minimum;
- addr->address_length = memory24->address_length;
- addr->maximum = addr->minimum + addr->address_length - 1;
- return AE_OK;
- case ACPI_RESOURCE_TYPE_MEMORY32:
- memory32 = &resource->data.memory32;
- addr->resource_type = ACPI_MEMORY_RANGE;
- addr->minimum = memory32->minimum;
- addr->address_length = memory32->address_length;
- addr->maximum = addr->minimum + addr->address_length - 1;
- return AE_OK;
- case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
- fixed_memory32 = &resource->data.fixed_memory32;
- addr->resource_type = ACPI_MEMORY_RANGE;
- addr->minimum = fixed_memory32->address;
- addr->address_length = fixed_memory32->address_length;
- addr->maximum = addr->minimum + addr->address_length - 1;
- return AE_OK;
- case ACPI_RESOURCE_TYPE_ADDRESS16:
- case ACPI_RESOURCE_TYPE_ADDRESS32:
- case ACPI_RESOURCE_TYPE_ADDRESS64:
- status = acpi_resource_to_address64(resource, addr);
- if (ACPI_SUCCESS(status) &&
- (addr->resource_type == ACPI_MEMORY_RANGE ||
- addr->resource_type == ACPI_IO_RANGE) &&
- addr->address_length > 0) {
- return AE_OK;
- }
- break;
- }
- return AE_ERROR;
-}
-
-static acpi_status
-count_resource(struct acpi_resource *acpi_res, void *data)
-{
- struct pci_root_info *info = data;
- struct acpi_resource_address64 addr;
- acpi_status status;
-
- status = resource_to_addr(acpi_res, &addr);
- if (ACPI_SUCCESS(status))
- info->res_num++;
- return AE_OK;
-}
-
-static acpi_status
-setup_resource(struct acpi_resource *acpi_res, void *data)
-{
- struct pci_root_info *info = data;
- struct resource *res;
- struct acpi_resource_address64 addr;
- acpi_status status;
- unsigned long flags;
- u64 start, orig_end, end;
-
- status = resource_to_addr(acpi_res, &addr);
- if (!ACPI_SUCCESS(status))
- return AE_OK;
-
- if (addr.resource_type == ACPI_MEMORY_RANGE) {
- flags = IORESOURCE_MEM;
- if (addr.info.mem.caching == ACPI_PREFETCHABLE_MEMORY)
- flags |= IORESOURCE_PREFETCH;
- } else if (addr.resource_type == ACPI_IO_RANGE) {
- flags = IORESOURCE_IO;
- } else
- return AE_OK;
-
- start = addr.minimum + addr.translation_offset;
- orig_end = end = addr.maximum + addr.translation_offset;
-
- /* Exclude non-addressable range or non-addressable portion of range */
- end = min(end, (u64)iomem_resource.end);
- if (end <= start) {
- dev_info(&info->bridge->dev,
- "host bridge window [%#llx-%#llx] "
- "(ignored, not CPU addressable)\n", start, orig_end);
- return AE_OK;
- } else if (orig_end != end) {
- dev_info(&info->bridge->dev,
- "host bridge window [%#llx-%#llx] "
- "([%#llx-%#llx] ignored, not CPU addressable)\n",
- start, orig_end, end + 1, orig_end);
- }
-
- res = &info->res[info->res_num];
- res->name = info->name;
- res->flags = flags;
- res->start = start;
- res->end = end;
- res->child = NULL;
-
- if (!pci_use_crs) {
- dev_printk(KERN_DEBUG, &info->bridge->dev,
- "host bridge window %pR (ignored)\n", res);
- return AE_OK;
- }
-
- info->res_num++;
- if (addr.translation_offset)
- dev_info(&info->bridge->dev, "host bridge window %pR "
- "(PCI address [%#llx-%#llx])\n",
- res, res->start - addr.translation_offset,
- res->end - addr.translation_offset);
- else
- dev_info(&info->bridge->dev, "host bridge window %pR\n", res);
-
- return AE_OK;
-}
-
-static bool resource_contains(struct resource *res, resource_size_t point)
-{
- if (res->start <= point && point <= res->end)
- return true;
- return false;
-}
-
-static void coalesce_windows(struct pci_root_info *info, unsigned long type)
-{
- int i, j;
- struct resource *res1, *res2;
-
- for (i = 0; i < info->res_num; i++) {
- res1 = &info->res[i];
- if (!(res1->flags & type))
- continue;
-
- for (j = i + 1; j < info->res_num; j++) {
- res2 = &info->res[j];
- if (!(res2->flags & type))
- continue;
-
- /*
- * I don't like throwing away windows because then
- * our resources no longer match the ACPI _CRS, but
- * the kernel resource tree doesn't allow overlaps.
- */
- if (resource_contains(res1, res2->start) ||
- resource_contains(res1, res2->end) ||
- resource_contains(res2, res1->start) ||
- resource_contains(res2, res1->end)) {
- res1->start = min(res1->start, res2->start);
- res1->end = max(res1->end, res2->end);
- dev_info(&info->bridge->dev,
- "host bridge window expanded to %pR; %pR ignored\n",
- res1, res2);
- res2->flags = 0;
- }
- }
- }
-}
-
-static void add_resources(struct pci_root_info *info)
-{
- int i;
- struct resource *res, *root, *conflict;
-
- coalesce_windows(info, IORESOURCE_MEM);
- coalesce_windows(info, IORESOURCE_IO);
-
- for (i = 0; i < info->res_num; i++) {
- res = &info->res[i];
-
- if (res->flags & IORESOURCE_MEM)
- root = &iomem_resource;
- else if (res->flags & IORESOURCE_IO)
- root = &ioport_resource;
- else
- continue;
-
- conflict = insert_resource_conflict(root, res);
- if (conflict)
- dev_info(&info->bridge->dev,
- "ignoring host bridge window %pR (conflicts with %s %pR)\n",
- res, conflict->name, conflict);
- else
- pci_add_resource(info->resources, res);
- }
-}
-
-static void
-get_current_resources(struct acpi_device *device, int busnum,
- int domain, struct list_head *resources)
-{
- struct pci_root_info info;
- size_t size;
-
- info.bridge = device;
- info.res_num = 0;
- info.resources = resources;
- acpi_walk_resources(device->handle, METHOD_NAME__CRS, count_resource,
- &info);
- if (!info.res_num)
- return;
-
- size = sizeof(*info.res) * info.res_num;
- info.res = kmalloc(size, GFP_KERNEL);
- if (!info.res)
- return;
-
- info.name = kasprintf(GFP_KERNEL, "PCI Bus %04x:%02x", domain, busnum);
- if (!info.name)
- goto name_alloc_fail;
-
- info.res_num = 0;
- acpi_walk_resources(device->handle, METHOD_NAME__CRS, setup_resource,
- &info);
-
- if (pci_use_crs) {
- add_resources(&info);
-
- return;
- }
-
- kfree(info.name);
-
-name_alloc_fail:
- kfree(info.res);
-}
-
-struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
-{
- struct acpi_device *device = root->device;
- int domain = root->segment;
- int busnum = root->secondary.start;
- LIST_HEAD(resources);
- struct pci_bus *bus;
- struct pci_sysdata *sd;
- int node;
-#ifdef CONFIG_ACPI_NUMA
- int pxm;
-#endif
-
- if (domain && !pci_domains_supported) {
- printk(KERN_WARNING "pci_bus %04x:%02x: "
- "ignored (multiple domains not supported)\n",
- domain, busnum);
- return NULL;
- }
-
- node = -1;
-#ifdef CONFIG_ACPI_NUMA
- pxm = acpi_get_pxm(device->handle);
- if (pxm >= 0)
- node = pxm_to_node(pxm);
- if (node != -1)
- set_mp_bus_to_node(busnum, node);
- else
-#endif
- node = get_mp_bus_to_node(busnum);
-
- if (node != -1 && !node_online(node))
- node = -1;
-
- /* Allocate per-root-bus (not per bus) arch-specific data.
- * TODO: leak; this memory is never freed.
- * It's arguable whether it's worth the trouble to care.
- */
- sd = kzalloc(sizeof(*sd), GFP_KERNEL);
- if (!sd) {
- printk(KERN_WARNING "pci_bus %04x:%02x: "
- "ignored (out of memory)\n", domain, busnum);
- return NULL;
- }
-
- sd->domain = domain;
- sd->node = node;
- /*
- * Maybe the desired pci bus has been already scanned. In such case
- * it is unnecessary to scan the pci bus with the given domain,busnum.
- */
- bus = pci_find_bus(domain, busnum);
- if (bus) {
- /*
- * If the desired bus exits, the content of bus->sysdata will
- * be replaced by sd.
- */
- memcpy(bus->sysdata, sd, sizeof(*sd));
- kfree(sd);
- } else {
- get_current_resources(device, busnum, domain, &resources);
-
- /*
- * _CRS with no apertures is normal, so only fall back to
- * defaults or native bridge info if we're ignoring _CRS.
- */
- if (!pci_use_crs)
- x86_pci_root_bus_resources(busnum, &resources);
- bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd,
- &resources);
- if (bus)
- bus->subordinate = pci_scan_child_bus(bus);
- else
- pci_free_resource_list(&resources);
- }
-
- /* After the PCI-E bus has been walked and all devices discovered,
- * configure any settings of the fabric that might be necessary.
- */
- if (bus) {
- struct pci_bus *child;
- list_for_each_entry(child, &bus->children, node) {
- struct pci_dev *self = child->self;
- if (!self)
- continue;
-
- pcie_bus_configure_settings(child, self->pcie_mpss);
- }
- }
-
- if (!bus)
- kfree(sd);
-
- if (bus && node != -1) {
-#ifdef CONFIG_ACPI_NUMA
- if (pxm >= 0)
- dev_printk(KERN_DEBUG, &bus->dev,
- "on NUMA node %d (pxm %d)\n", node, pxm);
-#else
- dev_printk(KERN_DEBUG, &bus->dev, "on NUMA node %d\n", node);
-#endif
- }
-
- return bus;
-}
-
-int __init pci_acpi_init(void)
-{
- struct pci_dev *dev = NULL;
-
- if (acpi_noirq)
- return -ENODEV;
-
- printk(KERN_INFO "PCI: Using ACPI for IRQ routing\n");
- acpi_irq_penalty_init();
- pcibios_enable_irq = acpi_pci_irq_enable;
- pcibios_disable_irq = acpi_pci_irq_disable;
- x86_init.pci.init_irq = x86_init_noop;
-
- if (pci_routeirq) {
- /*
- * PCI IRQ routing is set up by pci_enable_device(), but we
- * also do it here in case there are still broken drivers that
- * don't use pci_enable_device().
- */
- printk(KERN_INFO "PCI: Routing PCI interrupts for all devices because \"pci=routeirq\" specified\n");
- for_each_pci_dev(dev)
- acpi_pci_irq_enable(dev);
- }
-
- return 0;
-}
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