diff options
Diffstat (limited to 'drivers/acpi/motherboard.c')
| -rw-r--r-- | drivers/acpi/motherboard.c | 66 |
1 files changed, 35 insertions, 31 deletions
diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c index 468244147ec1..ec6b7f9ede34 100644 --- a/drivers/acpi/motherboard.c +++ b/drivers/acpi/motherboard.c @@ -37,7 +37,7 @@ ACPI_MODULE_NAME("acpi_motherboard") #define ACPI_MB_HID2 "PNP0C02" /** * Doesn't care about legacy IO ports, only IO ports beyond 0x1000 are reserved - * Doesn't care about the failure of 'request_region', since other may reserve + * Doesn't care about the failure of 'request_region', since other may reserve * the io ports as well */ #define IS_RESERVED_ADDR(base, len) \ @@ -46,19 +46,18 @@ ACPI_MODULE_NAME("acpi_motherboard") /* * Clearing the flag (IORESOURCE_BUSY) allows drivers to use * the io ports if they really know they can use it, while - * still preventing hotplug PCI devices from using it. + * still preventing hotplug PCI devices from using it. */ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data) { struct resource *requested_res = NULL; - ACPI_FUNCTION_TRACE("acpi_reserve_io_ranges"); if (res->type == ACPI_RESOURCE_TYPE_IO) { struct acpi_resource_io *io_res = &res->data.io; if (io_res->minimum != io_res->maximum) - return_VALUE(AE_OK); + return AE_OK; if (IS_RESERVED_ADDR (io_res->minimum, io_res->address_length)) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, @@ -92,7 +91,7 @@ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data) if (requested_res) requested_res->flags &= ~IORESOURCE_BUSY; - return_VALUE(AE_OK); + return AE_OK; } static int acpi_motherboard_add(struct acpi_device *device) @@ -123,49 +122,54 @@ static struct acpi_driver acpi_motherboard_driver2 = { }, }; +static void __init acpi_request_region (struct acpi_generic_address *addr, + unsigned int length, char *desc) +{ + if (!addr->address || !length) + return; + + if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) + request_region(addr->address, length, desc); + else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) + request_mem_region(addr->address, length, desc); +} + static void __init acpi_reserve_resources(void) { - if (acpi_gbl_FADT->xpm1a_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1a_evt_blk.address, - acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk, + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK"); - if (acpi_gbl_FADT->xpm1b_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1b_evt_blk.address, - acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk, + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK"); - if (acpi_gbl_FADT->xpm1a_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1a_cnt_blk.address, - acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk, + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK"); - if (acpi_gbl_FADT->xpm1b_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1b_cnt_blk.address, - acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk, + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK"); - if (acpi_gbl_FADT->xpm_tmr_blk.address && acpi_gbl_FADT->pm_tm_len == 4) - request_region(acpi_gbl_FADT->xpm_tmr_blk.address, 4, "PM_TMR"); + if (acpi_gbl_FADT->pm_tm_len == 4) + acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR"); - if (acpi_gbl_FADT->xpm2_cnt_blk.address && acpi_gbl_FADT->pm2_cnt_len) - request_region(acpi_gbl_FADT->xpm2_cnt_blk.address, - acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk, + acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK"); /* Length of GPE blocks must be a non-negative multiple of 2 */ - if (acpi_gbl_FADT->xgpe0_blk.address && acpi_gbl_FADT->gpe0_blk_len && - !(acpi_gbl_FADT->gpe0_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe0_blk.address, - acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK"); + if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe0_blk, + acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK"); - if (acpi_gbl_FADT->xgpe1_blk.address && acpi_gbl_FADT->gpe1_blk_len && - !(acpi_gbl_FADT->gpe1_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe1_blk.address, - acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK"); + if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe1_blk, + acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK"); } static int __init acpi_motherboard_init(void) { acpi_bus_register_driver(&acpi_motherboard_driver1); acpi_bus_register_driver(&acpi_motherboard_driver2); - /* + /* * Guarantee motherboard IO reservation first * This module must run after scan.c */ |