#include <acpi/acpi_drivers.h>
#define _COMPONENT ACPI_SYSTEM_COMPONENT
-ACPI_MODULE_NAME ("acpi_motherboard")
+ACPI_MODULE_NAME("acpi_motherboard")
/* Dell use PNP0C01 instead of PNP0C02 */
#define ACPI_MB_HID1 "PNP0C01"
#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) \
(((len) > 0) && ((base) > 0) && ((base) + (len) < IO_SPACE_LIMIT) \
&& ((base) + (len) > PCIBIOS_MIN_IO))
-
/*
* 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)
+/*
+ * When CONFIG_PNP is enabled, pnp/system.c binds to PNP0C01
+ * and PNP0C02, redundant with acpi_reserve_io_ranges().
+ * But acpi_reserve_io_ranges() is necessary for !CONFIG_PNP.
+ */
+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->id == ACPI_RSTYPE_IO) {
+ if (res->type == ACPI_RESOURCE_TYPE_IO) {
struct acpi_resource_io *io_res = &res->data.io;
- if (io_res->min_base_address != io_res->max_base_address)
+ if (io_res->minimum != io_res->maximum)
return AE_OK;
- if (IS_RESERVED_ADDR(io_res->min_base_address, io_res->range_length)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Motherboard resources 0x%08x - 0x%08x\n",
- io_res->min_base_address,
- io_res->min_base_address + io_res->range_length));
- requested_res = request_region(io_res->min_base_address,
- io_res->range_length, "motherboard");
+ if (IS_RESERVED_ADDR
+ (io_res->minimum, io_res->address_length)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Motherboard resources 0x%08x - 0x%08x\n",
+ io_res->minimum,
+ io_res->minimum +
+ io_res->address_length));
+ requested_res =
+ request_region(io_res->minimum,
+ io_res->address_length, "motherboard");
}
- } else if (res->id == ACPI_RSTYPE_FIXED_IO) {
- struct acpi_resource_fixed_io *fixed_io_res = &res->data.fixed_io;
-
- if (IS_RESERVED_ADDR(fixed_io_res->base_address, fixed_io_res->range_length)) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Motherboard resources 0x%08x - 0x%08x\n",
- fixed_io_res->base_address,
- fixed_io_res->base_address + fixed_io_res->range_length));
- requested_res = request_region(fixed_io_res->base_address,
- fixed_io_res->range_length, "motherboard");
+ } else if (res->type == ACPI_RESOURCE_TYPE_FIXED_IO) {
+ struct acpi_resource_fixed_io *fixed_io_res =
+ &res->data.fixed_io;
+
+ if (IS_RESERVED_ADDR
+ (fixed_io_res->address, fixed_io_res->address_length)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Motherboard resources 0x%08x - 0x%08x\n",
+ fixed_io_res->address,
+ fixed_io_res->address +
+ fixed_io_res->address_length));
+ requested_res =
+ request_region(fixed_io_res->address,
+ fixed_io_res->address_length,
+ "motherboard");
}
} else {
/* Memory mapped IO? */
return AE_OK;
}
-static int acpi_motherboard_add (struct acpi_device *device)
+static int acpi_motherboard_add(struct acpi_device *device)
{
if (!device)
return -EINVAL;
- acpi_walk_resources(device->handle, METHOD_NAME__CRS,
- acpi_reserve_io_ranges, NULL);
+ acpi_walk_resources(device->handle, METHOD_NAME__CRS,
+ acpi_reserve_io_ranges, NULL);
return 0;
}
static struct acpi_driver acpi_motherboard_driver1 = {
- .name = "motherboard",
- .class = "",
- .ids = ACPI_MB_HID1,
- .ops = {
- .add = acpi_motherboard_add,
- },
+ .name = "motherboard",
+ .class = "",
+ .ids = ACPI_MB_HID1,
+ .ops = {
+ .add = acpi_motherboard_add,
+ },
};
static struct acpi_driver acpi_motherboard_driver2 = {
- .name = "motherboard",
- .class = "",
- .ids = ACPI_MB_HID2,
- .ops = {
- .add = acpi_motherboard_add,
- },
+ .name = "motherboard",
+ .class = "",
+ .ids = ACPI_MB_HID2,
+ .ops = {
+ .add = acpi_motherboard_add,
+ },
};
-static void __init
-acpi_reserve_resources (void)
+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
*/
if (!acpi_disabled)
- acpi_reserve_resources ();
+ acpi_reserve_resources();
return 0;
}
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