diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/scan.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/tables.c | 42 |
2 files changed, 50 insertions, 4 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 84bb7c1929f1..6efe7edd7b1e 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1670,6 +1670,8 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, device_initialize(&device->dev); dev_set_uevent_suppress(&device->dev, true); acpi_init_coherency(device); + /* Assume there are unmet deps to start with. */ + device->dep_unmet = 1; } void acpi_device_add_finalize(struct acpi_device *device) @@ -1933,6 +1935,8 @@ static void acpi_scan_dep_init(struct acpi_device *adev) { struct acpi_dep_data *dep; + adev->dep_unmet = 0; + mutex_lock(&acpi_dep_list_lock); list_for_each_entry(dep, &acpi_dep_list, node) { @@ -1980,7 +1984,13 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep, return AE_CTRL_DEPTH; acpi_scan_init_hotplug(device); - if (!check_dep) + /* + * If check_dep is true at this point, the device has no dependencies, + * or the creation of the device object would have been postponed above. + */ + if (check_dep) + device->dep_unmet = 0; + else acpi_scan_dep_init(device); out: diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index e48690a006a4..9d581045acff 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -780,7 +780,7 @@ acpi_status acpi_os_table_override(struct acpi_table_header *existing_table, } /* - * acpi_table_init() + * acpi_locate_initial_tables() * * find RSDP, find and checksum SDT/XSDT. * checksum all tables, print SDT/XSDT @@ -788,7 +788,7 @@ acpi_status acpi_os_table_override(struct acpi_table_header *existing_table, * result: sdt_entry[] is initialized */ -int __init acpi_table_init(void) +int __init acpi_locate_initial_tables(void) { acpi_status status; @@ -803,9 +803,45 @@ int __init acpi_table_init(void) status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0); if (ACPI_FAILURE(status)) return -EINVAL; - acpi_table_initrd_scan(); + return 0; +} + +void __init acpi_reserve_initial_tables(void) +{ + int i; + + for (i = 0; i < ACPI_MAX_TABLES; i++) { + struct acpi_table_desc *table_desc = &initial_tables[i]; + u64 start = table_desc->address; + u64 size = table_desc->length; + + if (!start || !size) + break; + + pr_info("Reserving %4s table memory at [mem 0x%llx-0x%llx]\n", + table_desc->signature.ascii, start, start + size - 1); + + memblock_reserve(start, size); + } +} + +void __init acpi_table_init_complete(void) +{ + acpi_table_initrd_scan(); check_multiple_madt(); +} + +int __init acpi_table_init(void) +{ + int ret; + + ret = acpi_locate_initial_tables(); + if (ret) + return ret; + + acpi_table_init_complete(); + return 0; } |