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path: root/drivers/acpi/acpica/evgpeblk.c
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Diffstat (limited to 'drivers/acpi/acpica/evgpeblk.c')
-rw-r--r--drivers/acpi/acpica/evgpeblk.c102
1 files changed, 34 insertions, 68 deletions
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 7c28f2d9fd35..ca2c41a53311 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -5,7 +5,7 @@
*****************************************************************************/
/*
- * Copyright (C) 2000 - 2010, Intel Corp.
+ * Copyright (C) 2000 - 2011, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -361,6 +361,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
gpe_block->node = gpe_device;
gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH);
+ gpe_block->initialized = FALSE;
gpe_block->register_count = register_count;
gpe_block->block_base_number = gpe_block_base_number;
@@ -385,11 +386,12 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
return_ACPI_STATUS(status);
}
+ acpi_gbl_all_gpes_initialized = FALSE;
+
/* Find all GPE methods (_Lxx or_Exx) for this block */
walk_info.gpe_block = gpe_block;
walk_info.gpe_device = gpe_device;
- walk_info.enable_this_gpe = FALSE;
walk_info.execute_by_owner_id = FALSE;
status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
@@ -421,78 +423,45 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
*
* FUNCTION: acpi_ev_initialize_gpe_block
*
- * PARAMETERS: gpe_device - Handle to the parent GPE block
- * gpe_block - Gpe Block info
+ * PARAMETERS: acpi_gpe_callback
*
* RETURN: Status
*
- * DESCRIPTION: Initialize and enable a GPE block. First find and run any
- * _PRT methods associated with the block, then enable the
- * appropriate GPEs.
+ * DESCRIPTION: Initialize and enable a GPE block. Enable GPEs that have
+ * associated methods.
* Note: Assumes namespace is locked.
*
******************************************************************************/
acpi_status
-acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
- struct acpi_gpe_block_info *gpe_block)
+acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+ struct acpi_gpe_block_info *gpe_block,
+ void *ignored)
{
acpi_status status;
struct acpi_gpe_event_info *gpe_event_info;
- struct acpi_gpe_walk_info walk_info;
- u32 wake_gpe_count;
u32 gpe_enabled_count;
u32 gpe_index;
- u32 gpe_number;
u32 i;
u32 j;
ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
- /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */
-
- if (!gpe_block) {
- return_ACPI_STATUS(AE_OK);
- }
-
/*
- * Runtime option: Should wake GPEs be enabled at runtime? The default
- * is no, they should only be enabled just as the machine goes to sleep.
+ * Ignore a null GPE block (e.g., if no GPE block 1 exists), and
+ * any GPE blocks that have been initialized already.
*/
- if (acpi_gbl_leave_wake_gpes_disabled) {
- /*
- * Differentiate runtime vs wake GPEs, via the _PRW control methods.
- * Each GPE that has one or more _PRWs that reference it is by
- * definition a wake GPE and will not be enabled while the machine
- * is running.
- */
- walk_info.gpe_block = gpe_block;
- walk_info.gpe_device = gpe_device;
- walk_info.execute_by_owner_id = FALSE;
-
- status =
- acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK,
- acpi_ev_match_prw_and_gpe, NULL,
- &walk_info, NULL);
- if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status,
- "While executing _PRW methods"));
- }
+ if (!gpe_block || gpe_block->initialized) {
+ return_ACPI_STATUS(AE_OK);
}
/*
- * Enable all GPEs that have a corresponding method and are not
- * capable of generating wakeups. Any other GPEs within this block
- * must be enabled via the acpi_enable_gpe interface.
+ * Enable all GPEs that have a corresponding method and have the
+ * ACPI_GPE_CAN_WAKE flag unset. Any other GPEs within this block
+ * must be enabled via the acpi_enable_gpe() interface.
*/
- wake_gpe_count = 0;
gpe_enabled_count = 0;
- if (gpe_device == acpi_gbl_fadt_gpe_device) {
- gpe_device = NULL;
- }
-
for (i = 0; i < gpe_block->register_count; i++) {
for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
@@ -501,28 +470,23 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
gpe_event_info = &gpe_block->event_info[gpe_index];
- if (gpe_event_info->flags & ACPI_GPE_CAN_WAKE) {
- wake_gpe_count++;
- if (acpi_gbl_leave_wake_gpes_disabled) {
- continue;
- }
- }
-
- /* Ignore GPEs that have no corresponding _Lxx/_Exx method */
-
- if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)) {
+ /*
+ * Ignore GPEs that have no corresponding _Lxx/_Exx method
+ * and GPEs that are used to wake the system
+ */
+ if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+ ACPI_GPE_DISPATCH_NONE)
+ || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+ == ACPI_GPE_DISPATCH_HANDLER)
+ || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
continue;
}
- /* Enable this GPE */
-
- gpe_number = gpe_index + gpe_block->block_base_number;
- status = acpi_enable_gpe(gpe_device, gpe_number,
- ACPI_GPE_TYPE_RUNTIME);
+ status = acpi_ev_add_gpe_reference(gpe_event_info);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
- "Could not enable GPE 0x%02X",
- gpe_number));
+ "Could not enable GPE 0x%02X",
+ gpe_index + gpe_block->block_base_number));
continue;
}
@@ -530,11 +494,13 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
}
}
- if (gpe_enabled_count || wake_gpe_count) {
+ if (gpe_enabled_count) {
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
- "Enabled %u Runtime GPEs, added %u Wake GPEs in this block\n",
- gpe_enabled_count, wake_gpe_count));
+ "Enabled %u GPEs in this block\n",
+ gpe_enabled_count));
}
+ gpe_block->initialized = TRUE;
+
return_ACPI_STATUS(AE_OK);
}
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 14:45:26 +0300