Pull bugzilla-7887 into release branch

[sfrench/cifs-2.6.git] / drivers / acpi / bus.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 766332e4559212aa9c253ddf3723e65367487b96..dd49ea0d0ed3606a69dfc2a9580b64768ced7cb9 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -39,14 +39,11 @@
 #include <acpi/acpi_drivers.h>
 
 #define _COMPONENT             ACPI_BUS_COMPONENT
-ACPI_MODULE_NAME("acpi_bus")
+ACPI_MODULE_NAME("bus");
 #ifdef CONFIG_X86
 extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
 #endif
 
-struct fadt_descriptor acpi_fadt;
-EXPORT_SYMBOL(acpi_fadt);
-
 struct acpi_device *acpi_root;
 struct proc_dir_entry *acpi_root_dir;
 EXPORT_SYMBOL(acpi_root_dir);
@@ -150,7 +147,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
                        *state = ACPI_STATE_D0;
        } else {
                /*
-                * Get the device's power state either directly (via _PSC) or 
+                * Get the device's power state either directly (via _PSC) or
                 * indirectly (via power resources).
                 */
                if (device->power.flags.explicit_get) {
@@ -195,22 +192,21 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 
        if (!device->flags.power_manageable) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
-                               device->kobj.name));
+                               device->dev.kobj.name));
                return -ENODEV;
        }
        /*
         * Get device's current power state if it's unknown
         * This means device power state isn't initialized or previous setting failed
         */
-       if (!device->flags.force_power_state) {
-               if (device->power.state == ACPI_STATE_UNKNOWN)
-                       acpi_bus_get_power(device->handle, &device->power.state);
-               if (state == device->power.state) {
-                       ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
-                                         state));
-                       return 0;
-               }
+       if ((device->power.state == ACPI_STATE_UNKNOWN) || device->flags.force_power_state)
+               acpi_bus_get_power(device->handle, &device->power.state);
+       if ((state == device->power.state) && !device->flags.force_power_state) {
+               ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+                                 state));
+               return 0;
        }
+
        if (!device->power.states[state].flags.valid) {
                printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
                return -ENODEV;
@@ -465,7 +461,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
                                  "Received BUS CHECK notification for device [%s]\n",
                                  device->pnp.bus_id));
                result = acpi_bus_check_scope(device);
-               /* 
+               /*
                 * TBD: We'll need to outsource certain events to non-ACPI
                 *      drivers via the device manager (device.c).
                 */
@@ -476,7 +472,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
                                  "Received DEVICE CHECK notification for device [%s]\n",
                                  device->pnp.bus_id));
                result = acpi_bus_check_device(device, NULL);
-               /* 
+               /*
                 * TBD: We'll need to outsource certain events to non-ACPI
                 *      drivers via the device manager (device.c).
                 */
@@ -546,7 +542,7 @@ static int __init acpi_bus_init_irq(void)
        char *message = NULL;
 
 
-       /* 
+       /*
         * Let the system know what interrupt model we are using by
         * evaluating the \_PIC object, if exists.
         */
@@ -582,11 +578,12 @@ static int __init acpi_bus_init_irq(void)
        return 0;
 }
 
+acpi_native_uint acpi_gbl_permanent_mmap;
+
+
 void __init acpi_early_init(void)
 {
        acpi_status status = AE_OK;
-       struct acpi_buffer buffer = { sizeof(acpi_fadt), &acpi_fadt };
-
 
        if (acpi_disabled)
                return;
@@ -597,6 +594,15 @@ void __init acpi_early_init(void)
        if (!acpi_strict)
                acpi_gbl_enable_interpreter_slack = TRUE;
 
+       acpi_gbl_permanent_mmap = 1;
+
+       status = acpi_reallocate_root_table();
+       if (ACPI_FAILURE(status)) {
+               printk(KERN_ERR PREFIX
+                      "Unable to reallocate ACPI tables\n");
+               goto error0;
+       }
+
        status = acpi_initialize_subsystem();
        if (ACPI_FAILURE(status)) {
                printk(KERN_ERR PREFIX
@@ -611,32 +617,25 @@ void __init acpi_early_init(void)
                goto error0;
        }
 
-       /*
-        * Get a separate copy of the FADT for use by other drivers.
-        */
-       status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &buffer);
-       if (ACPI_FAILURE(status)) {
-               printk(KERN_ERR PREFIX "Unable to get the FADT\n");
-               goto error0;
-       }
 #ifdef CONFIG_X86
        if (!acpi_ioapic) {
-               extern acpi_interrupt_flags acpi_sci_flags;
+               extern u8 acpi_sci_flags;
 
                /* compatible (0) means level (3) */
-               if (acpi_sci_flags.trigger == 0)
-                       acpi_sci_flags.trigger = 3;
-
+               if (!(acpi_sci_flags & ACPI_MADT_TRIGGER_MASK)) {
+                       acpi_sci_flags &= ~ACPI_MADT_TRIGGER_MASK;
+                       acpi_sci_flags |= ACPI_MADT_TRIGGER_LEVEL;
+               }
                /* Set PIC-mode SCI trigger type */
-               acpi_pic_sci_set_trigger(acpi_fadt.sci_int,
-                                        acpi_sci_flags.trigger);
+               acpi_pic_sci_set_trigger(acpi_gbl_FADT.sci_interrupt,
+                                        (acpi_sci_flags & ACPI_MADT_TRIGGER_MASK) >> 2);
        } else {
                extern int acpi_sci_override_gsi;
                /*
-                * now that acpi_fadt is initialized,
+                * now that acpi_gbl_FADT is initialized,
                 * update it with result from INT_SRC_OVR parsing
                 */
-               acpi_fadt.sci_int = acpi_sci_override_gsi;
+               acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi;
        }
 #endif
 
@@ -684,7 +683,7 @@ static int __init acpi_bus_init(void)
         * the EC device is found in the namespace (i.e. before acpi_initialize_objects()
         * is called).
         *
-        * This is accomplished by looking for the ECDT table, and getting 
+        * This is accomplished by looking for the ECDT table, and getting
         * the EC parameters out of that.
         */
        status = acpi_ec_ecdt_probe();
@@ -699,6 +698,9 @@ static int __init acpi_bus_init(void)
 
        printk(KERN_INFO PREFIX "Interpreter enabled\n");
 
+       /* Initialize sleep structures */
+       acpi_sleep_init();
+
        /*
         * Get the system interrupt model and evaluate \_PIC.
         */