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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.c164
1 files changed, 76 insertions, 88 deletions
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index c1aa1eda26c3..fadd93caf1d5 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -1,45 +1,11 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
*
* Module Name: evgpeblk - GPE block creation and initialization.
*
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2013, Intel Corp.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
+ * Copyright (C) 2000 - 2025, Intel Corp.
*
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
+ *****************************************************************************/
#include <acpi/acpi.h>
#include "accommon.h"
@@ -87,9 +53,9 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
return_ACPI_STATUS(status);
}
- gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number);
- if (!gpe_xrupt_block) {
- status = AE_NO_MEMORY;
+ status =
+ acpi_ev_get_gpe_xrupt_block(interrupt_number, &gpe_xrupt_block);
+ if (ACPI_FAILURE(status)) {
goto unlock_and_exit;
}
@@ -111,8 +77,8 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
gpe_block->xrupt_block = gpe_xrupt_block;
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
- unlock_and_exit:
- status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+unlock_and_exit:
+ (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
return_ACPI_STATUS(status);
}
@@ -144,6 +110,9 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
status =
acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
if (!gpe_block->previous && !gpe_block->next) {
@@ -167,6 +136,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
if (gpe_block->next) {
gpe_block->next->previous = gpe_block->previous;
}
+
acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
}
@@ -178,7 +148,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
ACPI_FREE(gpe_block->event_info);
ACPI_FREE(gpe_block);
- unlock_and_exit:
+unlock_and_exit:
status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
return_ACPI_STATUS(status);
}
@@ -210,7 +180,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
/* Allocate the GPE register information block */
- gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->
+ gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size)gpe_block->
register_count *
sizeof(struct
acpi_gpe_register_info));
@@ -224,7 +194,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
* Allocate the GPE event_info block. There are eight distinct GPEs
* per register. Initialization to zeros is sufficient.
*/
- gpe_event_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block->gpe_count *
+ gpe_event_info = ACPI_ALLOCATE_ZEROED((acpi_size)gpe_block->gpe_count *
sizeof(struct
acpi_gpe_event_info));
if (!gpe_event_info) {
@@ -252,27 +222,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
/* Init the register_info for this GPE register (8 GPEs) */
- this_register->base_gpe_number =
- (u8) (gpe_block->block_base_number +
- (i * ACPI_GPE_REGISTER_WIDTH));
+ this_register->base_gpe_number = (u16)
+ (gpe_block->block_base_number +
+ (i * ACPI_GPE_REGISTER_WIDTH));
- this_register->status_address.address =
- gpe_block->block_address.address + i;
+ this_register->status_address.address = gpe_block->address + i;
this_register->enable_address.address =
- gpe_block->block_address.address + i +
- gpe_block->register_count;
-
- this_register->status_address.space_id =
- gpe_block->block_address.space_id;
- this_register->enable_address.space_id =
- gpe_block->block_address.space_id;
- this_register->status_address.bit_width =
- ACPI_GPE_REGISTER_WIDTH;
- this_register->enable_address.bit_width =
- ACPI_GPE_REGISTER_WIDTH;
- this_register->status_address.bit_offset = 0;
- this_register->enable_address.bit_offset = 0;
+ gpe_block->address + i + gpe_block->register_count;
+
+ this_register->status_address.space_id = gpe_block->space_id;
+ this_register->enable_address.space_id = gpe_block->space_id;
/* Init the event_info for each GPE within this register */
@@ -285,14 +245,14 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
/* Disable all GPEs within this register */
- status = acpi_hw_write(0x00, &this_register->enable_address);
+ status = acpi_hw_gpe_write(0x00, &this_register->enable_address);
if (ACPI_FAILURE(status)) {
goto error_exit;
}
/* Clear any pending GPE events within this register */
- status = acpi_hw_write(0xFF, &this_register->status_address);
+ status = acpi_hw_gpe_write(0xFF, &this_register->status_address);
if (ACPI_FAILURE(status)) {
goto error_exit;
}
@@ -302,7 +262,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
return_ACPI_STATUS(AE_OK);
- error_exit:
+error_exit:
if (gpe_register_info) {
ACPI_FREE(gpe_register_info);
}
@@ -334,9 +294,10 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
acpi_status
acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
- struct acpi_generic_address *gpe_block_address,
+ u64 address,
+ u8 space_id,
u32 register_count,
- u8 gpe_block_base_number,
+ u16 gpe_block_base_number,
u32 interrupt_number,
struct acpi_gpe_block_info **return_gpe_block)
{
@@ -350,6 +311,23 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
return_ACPI_STATUS(AE_OK);
}
+ /* Validate the space_ID */
+
+ if ((space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) &&
+ (space_id != ACPI_ADR_SPACE_SYSTEM_IO)) {
+ ACPI_ERROR((AE_INFO,
+ "Unsupported address space: 0x%X", space_id));
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ if (space_id == ACPI_ADR_SPACE_SYSTEM_IO) {
+ status = acpi_hw_validate_io_block(address,
+ ACPI_GPE_REGISTER_WIDTH,
+ register_count);
+ if (ACPI_FAILURE(status))
+ return_ACPI_STATUS(status);
+ }
+
/* Allocate a new GPE block */
gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info));
@@ -359,15 +337,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
/* Initialize the new GPE block */
+ gpe_block->address = address;
+ gpe_block->space_id = space_id;
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;
- ACPI_MEMCPY(&gpe_block->block_address, gpe_block_address,
- sizeof(struct acpi_generic_address));
-
/*
* Create the register_info and event_info sub-structures
* Note: disables and clears all GPEs in the block
@@ -396,10 +373,10 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
walk_info.gpe_device = gpe_device;
walk_info.execute_by_owner_id = FALSE;
- status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
- ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
- acpi_ev_match_gpe_method, NULL,
- &walk_info, NULL);
+ (void)acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+ acpi_ev_match_gpe_method, NULL, &walk_info,
+ NULL);
/* Return the new block */
@@ -408,12 +385,14 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
}
ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,
- " Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X\n",
+ " Initialized GPE %02X to %02X [%4.4s] %u regs on interrupt 0x%X%s\n",
(u32)gpe_block->block_base_number,
(u32)(gpe_block->block_base_number +
(gpe_block->gpe_count - 1)),
gpe_device->name.ascii, gpe_block->register_count,
- interrupt_number));
+ interrupt_number,
+ interrupt_number ==
+ acpi_gbl_FADT.sci_interrupt ? " (SCI)" : ""));
/* Update global count of currently available GPEs */
@@ -438,7 +417,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
acpi_status
acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
struct acpi_gpe_block_info *gpe_block,
- void *ignored)
+ void *context)
{
acpi_status status;
struct acpi_gpe_event_info *gpe_event_info;
@@ -446,6 +425,8 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
u32 gpe_index;
u32 i;
u32 j;
+ u8 *is_polling_needed = context;
+ ACPI_ERROR_ONLY(u32 gpe_number);
ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
@@ -471,35 +452,42 @@ acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
gpe_event_info = &gpe_block->event_info[gpe_index];
+ ACPI_ERROR_ONLY(gpe_number =
+ gpe_block->block_base_number +
+ gpe_index);
+ gpe_event_info->flags |= ACPI_GPE_INITIALIZED;
/*
* Ignore GPEs that have no corresponding _Lxx/_Exx method
- * and GPEs that are used to wake the system
+ * and GPEs that are used for wakeup
*/
- 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)
+ if ((ACPI_GPE_DISPATCH_TYPE(gpe_event_info->flags) !=
+ ACPI_GPE_DISPATCH_METHOD)
|| (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
continue;
}
- status = acpi_ev_add_gpe_reference(gpe_event_info);
+ status = acpi_ev_add_gpe_reference(gpe_event_info, FALSE);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"Could not enable GPE 0x%02X",
- gpe_index +
- gpe_block->block_base_number));
+ gpe_number));
continue;
}
+ gpe_event_info->flags |= ACPI_GPE_AUTO_ENABLED;
+
+ if (is_polling_needed &&
+ ACPI_GPE_IS_POLLING_NEEDED(gpe_event_info)) {
+ *is_polling_needed = TRUE;
+ }
+
gpe_enabled_count++;
}
}
if (gpe_enabled_count) {
- ACPI_INFO((AE_INFO,
- "Enabled %u GPEs in block %02X to %02X",
+ ACPI_INFO(("Enabled %u GPEs in block %02X to %02X",
gpe_enabled_count, (u32)gpe_block->block_base_number,
(u32)(gpe_block->block_base_number +
(gpe_block->gpe_count - 1))));
generated by cgit (git 2.34.1) at 2025-12-25 17:32:03 +0000