Lines Matching refs:root
144 static void decode_osc_bits(struct acpi_pci_root *root, char *msg, u32 word, in decode_osc_bits() argument
157 dev_info(&root->device->dev, "_OSC: %s [%s]\n", msg, buf); in decode_osc_bits()
160 static void decode_osc_support(struct acpi_pci_root *root, char *msg, u32 word) in decode_osc_support() argument
162 decode_osc_bits(root, msg, word, pci_osc_support_bit, in decode_osc_support()
166 static void decode_osc_control(struct acpi_pci_root *root, char *msg, u32 word) in decode_osc_control() argument
168 decode_osc_bits(root, msg, word, pci_osc_control_bit, in decode_osc_control()
193 static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, in acpi_pci_query_osc() argument
201 support |= root->osc_support_set; in acpi_pci_query_osc()
207 capbuf[OSC_CONTROL_DWORD] = *control | root->osc_control_set; in acpi_pci_query_osc()
210 capbuf[OSC_CONTROL_DWORD] = root->osc_control_set; in acpi_pci_query_osc()
213 status = acpi_pci_run_osc(root->device->handle, capbuf, &result); in acpi_pci_query_osc()
215 root->osc_support_set = support; in acpi_pci_query_osc()
222 static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags) in acpi_pci_osc_support() argument
224 return acpi_pci_query_osc(root, flags, NULL); in acpi_pci_osc_support()
229 struct acpi_pci_root *root; in acpi_pci_find_root() local
236 root = acpi_driver_data(device); in acpi_pci_find_root()
238 return root; in acpi_pci_find_root()
268 struct acpi_pci_root *root; in acpi_get_pci_dev() local
289 root = acpi_pci_find_root(phandle); in acpi_get_pci_dev()
290 if (!root) in acpi_get_pci_dev()
293 pbus = root->bus; in acpi_get_pci_dev()
351 struct acpi_pci_root *root; in acpi_pci_osc_control_set() local
362 root = acpi_pci_find_root(handle); in acpi_pci_osc_control_set()
363 if (!root) in acpi_pci_osc_control_set()
366 *mask = ctrl | root->osc_control_set; in acpi_pci_osc_control_set()
368 if ((root->osc_control_set & ctrl) == ctrl) in acpi_pci_osc_control_set()
373 status = acpi_pci_query_osc(root, root->osc_support_set, mask); in acpi_pci_osc_control_set()
378 decode_osc_control(root, "platform does not support", in acpi_pci_osc_control_set()
384 decode_osc_control(root, "not requesting control; platform does not support", in acpi_pci_osc_control_set()
390 capbuf[OSC_SUPPORT_DWORD] = root->osc_support_set; in acpi_pci_osc_control_set()
396 root->osc_control_set = *mask; in acpi_pci_osc_control_set()
400 static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, in negotiate_os_control() argument
405 struct acpi_device *device = root->device; in negotiate_os_control()
414 root->osc_control_set = ~OSC_PCI_EXPRESS_PME_CONTROL; in negotiate_os_control()
415 decode_osc_control(root, "OS assumes control of", in negotiate_os_control()
416 root->osc_control_set); in negotiate_os_control()
435 decode_osc_support(root, "OS supports", support); in negotiate_os_control()
436 status = acpi_pci_osc_support(root, support); in negotiate_os_control()
455 decode_osc_support(root, "not requesting OS control; OS requires", in negotiate_os_control()
488 decode_osc_control(root, "OS now controls", control); in negotiate_os_control()
499 decode_osc_control(root, "OS requested", requested); in negotiate_os_control()
500 decode_osc_control(root, "platform willing to grant", control); in negotiate_os_control()
521 struct acpi_pci_root *root; in acpi_pci_root_add() local
527 root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL); in acpi_pci_root_add()
528 if (!root) in acpi_pci_root_add()
541 root->secondary.flags = IORESOURCE_BUS; in acpi_pci_root_add()
542 status = try_get_root_bridge_busnr(handle, &root->secondary); in acpi_pci_root_add()
550 root->secondary.end = 0xFF; in acpi_pci_root_add()
556 root->secondary.start = bus; in acpi_pci_root_add()
558 root->secondary.start = 0; in acpi_pci_root_add()
566 root->device = device; in acpi_pci_root_add()
567 root->segment = segment & 0xFFFF; in acpi_pci_root_add()
570 device->driver_data = root; in acpi_pci_root_add()
579 root->segment, &root->secondary); in acpi_pci_root_add()
581 root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle); in acpi_pci_root_add()
584 negotiate_os_control(root, &no_aspm, is_pcie); in acpi_pci_root_add()
597 root->bus = pci_acpi_scan_root(root); in acpi_pci_root_add()
598 if (!root->bus) { in acpi_pci_root_add()
601 root->segment, (unsigned int)root->secondary.start); in acpi_pci_root_add()
611 device_set_wakeup_capable(root->bus->bridge, device->wakeup.flags.valid); in acpi_pci_root_add()
614 pcibios_resource_survey_bus(root->bus); in acpi_pci_root_add()
615 pci_assign_unassigned_root_bus_resources(root->bus); in acpi_pci_root_add()
626 acpi_ioapic_add(root->device->handle); in acpi_pci_root_add()
630 pci_bus_add_devices(root->bus); in acpi_pci_root_add()
638 kfree(root); in acpi_pci_root_add()
644 struct acpi_pci_root *root = acpi_driver_data(device); in acpi_pci_root_remove() local
648 pci_stop_root_bus(root->bus); in acpi_pci_root_remove()
650 pci_ioapic_remove(root); in acpi_pci_root_remove()
651 device_set_wakeup_capable(root->bus->bridge, false); in acpi_pci_root_remove()
654 pci_remove_root_bus(root->bus); in acpi_pci_root_remove()
655 WARN_ON(acpi_ioapic_remove(root)); in acpi_pci_root_remove()
661 kfree(root); in acpi_pci_root_remove()
674 struct resource *res1, *res2, *root = NULL; in acpi_pci_root_validate_resources() local
678 root = (type & IORESOURCE_MEM) ? &iomem_resource : &ioport_resource; in acpi_pci_root_validate_resources()
690 end = min(res1->end, root->end); in acpi_pci_root_validate_resources()
802 struct resource *res, *conflict, *root = NULL; in pci_acpi_root_add_resources() local
807 root = &iomem_resource; in pci_acpi_root_add_resources()
809 root = &ioport_resource; in pci_acpi_root_add_resources()
817 if (res == root) in pci_acpi_root_add_resources()
820 conflict = insert_resource_conflict(root, res); in pci_acpi_root_add_resources()
865 struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root, in acpi_pci_root_create() argument
870 int ret, busnum = root->secondary.start; in acpi_pci_root_create()
871 struct acpi_device *device = root->device; in acpi_pci_root_create()
877 info->root = root; in acpi_pci_root_create()
882 root->segment, busnum); in acpi_pci_root_create()
894 pci_add_resource(&info->resources, &root->secondary); in acpi_pci_root_create()
901 if (!(root->osc_control_set & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)) in acpi_pci_root_create()
903 if (!(root->osc_control_set & OSC_PCI_SHPC_NATIVE_HP_CONTROL)) in acpi_pci_root_create()
905 if (!(root->osc_control_set & OSC_PCI_EXPRESS_AER_CONTROL)) in acpi_pci_root_create()
907 if (!(root->osc_control_set & OSC_PCI_EXPRESS_PME_CONTROL)) in acpi_pci_root_create()
909 if (!(root->osc_control_set & OSC_PCI_EXPRESS_LTR_CONTROL)) in acpi_pci_root_create()
911 if (!(root->osc_control_set & OSC_PCI_EXPRESS_DPC_CONTROL)) in acpi_pci_root_create()