mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 13:26:42 +07:00
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
581 lines
17 KiB
C
581 lines
17 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: evrgnini- ACPI address_space (op_region) init
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2005, R. Byron Moore
|
|
* 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.
|
|
*
|
|
* 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 <acpi/acevents.h>
|
|
#include <acpi/acnamesp.h>
|
|
|
|
#define _COMPONENT ACPI_EVENTS
|
|
ACPI_MODULE_NAME ("evrgnini")
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_system_memory_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling, a nop for now
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_system_memory_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
union acpi_operand_object *region_desc = (union acpi_operand_object *) handle;
|
|
struct acpi_mem_space_context *local_region_context;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("ev_system_memory_region_setup");
|
|
|
|
|
|
if (function == ACPI_REGION_DEACTIVATE) {
|
|
if (*region_context) {
|
|
ACPI_MEM_FREE (*region_context);
|
|
*region_context = NULL;
|
|
}
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Create a new context */
|
|
|
|
local_region_context = ACPI_MEM_CALLOCATE (sizeof (struct acpi_mem_space_context));
|
|
if (!(local_region_context)) {
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/* Save the region length and address for use in the handler */
|
|
|
|
local_region_context->length = region_desc->region.length;
|
|
local_region_context->address = region_desc->region.address;
|
|
|
|
*region_context = local_region_context;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_io_space_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_io_space_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
ACPI_FUNCTION_TRACE ("ev_io_space_region_setup");
|
|
|
|
|
|
if (function == ACPI_REGION_DEACTIVATE) {
|
|
*region_context = NULL;
|
|
}
|
|
else {
|
|
*region_context = handler_context;
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_pci_config_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling
|
|
*
|
|
* MUTEX: Assumes namespace is not locked
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_pci_config_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
acpi_integer pci_value;
|
|
struct acpi_pci_id *pci_id = *region_context;
|
|
union acpi_operand_object *handler_obj;
|
|
struct acpi_namespace_node *parent_node;
|
|
struct acpi_namespace_node *pci_root_node;
|
|
union acpi_operand_object *region_obj = (union acpi_operand_object *) handle;
|
|
struct acpi_device_id object_hID;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE ("ev_pci_config_region_setup");
|
|
|
|
|
|
handler_obj = region_obj->region.handler;
|
|
if (!handler_obj) {
|
|
/*
|
|
* No installed handler. This shouldn't happen because the dispatch
|
|
* routine checks before we get here, but we check again just in case.
|
|
*/
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Attempting to init a region %p, with no handler\n", region_obj));
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
*region_context = NULL;
|
|
if (function == ACPI_REGION_DEACTIVATE) {
|
|
if (pci_id) {
|
|
ACPI_MEM_FREE (pci_id);
|
|
}
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
|
|
parent_node = acpi_ns_get_parent_node (region_obj->region.node);
|
|
|
|
/*
|
|
* Get the _SEG and _BBN values from the device upon which the handler
|
|
* is installed.
|
|
*
|
|
* We need to get the _SEG and _BBN objects relative to the PCI BUS device.
|
|
* This is the device the handler has been registered to handle.
|
|
*/
|
|
|
|
/*
|
|
* If the address_space.Node is still pointing to the root, we need
|
|
* to scan upward for a PCI Root bridge and re-associate the op_region
|
|
* handlers with that device.
|
|
*/
|
|
if (handler_obj->address_space.node == acpi_gbl_root_node) {
|
|
/* Start search from the parent object */
|
|
|
|
pci_root_node = parent_node;
|
|
while (pci_root_node != acpi_gbl_root_node) {
|
|
status = acpi_ut_execute_HID (pci_root_node, &object_hID);
|
|
if (ACPI_SUCCESS (status)) {
|
|
/* Got a valid _HID, check if this is a PCI root */
|
|
|
|
if (!(ACPI_STRNCMP (object_hID.value, PCI_ROOT_HID_STRING,
|
|
sizeof (PCI_ROOT_HID_STRING)))) {
|
|
/* Install a handler for this PCI root bridge */
|
|
|
|
status = acpi_install_address_space_handler ((acpi_handle) pci_root_node,
|
|
ACPI_ADR_SPACE_PCI_CONFIG,
|
|
ACPI_DEFAULT_HANDLER, NULL, NULL);
|
|
if (ACPI_FAILURE (status)) {
|
|
if (status == AE_SAME_HANDLER) {
|
|
/*
|
|
* It is OK if the handler is already installed on the root
|
|
* bridge. Still need to return a context object for the
|
|
* new PCI_Config operation region, however.
|
|
*/
|
|
status = AE_OK;
|
|
}
|
|
else {
|
|
ACPI_REPORT_ERROR ((
|
|
"Could not install pci_config handler for Root Bridge %4.4s, %s\n",
|
|
acpi_ut_get_node_name (pci_root_node), acpi_format_exception (status)));
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
pci_root_node = acpi_ns_get_parent_node (pci_root_node);
|
|
}
|
|
|
|
/* PCI root bridge not found, use namespace root node */
|
|
}
|
|
else {
|
|
pci_root_node = handler_obj->address_space.node;
|
|
}
|
|
|
|
/*
|
|
* If this region is now initialized, we are done.
|
|
* (install_address_space_handler could have initialized it)
|
|
*/
|
|
if (region_obj->region.flags & AOPOBJ_SETUP_COMPLETE) {
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Region is still not initialized. Create a new context */
|
|
|
|
pci_id = ACPI_MEM_CALLOCATE (sizeof (struct acpi_pci_id));
|
|
if (!pci_id) {
|
|
return_ACPI_STATUS (AE_NO_MEMORY);
|
|
}
|
|
|
|
/*
|
|
* For PCI_Config space access, we need the segment, bus,
|
|
* device and function numbers. Acquire them here.
|
|
*/
|
|
|
|
/*
|
|
* Get the PCI device and function numbers from the _ADR object
|
|
* contained in the parent's scope.
|
|
*/
|
|
status = acpi_ut_evaluate_numeric_object (METHOD_NAME__ADR, parent_node, &pci_value);
|
|
|
|
/*
|
|
* The default is zero, and since the allocation above zeroed
|
|
* the data, just do nothing on failure.
|
|
*/
|
|
if (ACPI_SUCCESS (status)) {
|
|
pci_id->device = ACPI_HIWORD (ACPI_LODWORD (pci_value));
|
|
pci_id->function = ACPI_LOWORD (ACPI_LODWORD (pci_value));
|
|
}
|
|
|
|
/* The PCI segment number comes from the _SEG method */
|
|
|
|
status = acpi_ut_evaluate_numeric_object (METHOD_NAME__SEG, pci_root_node, &pci_value);
|
|
if (ACPI_SUCCESS (status)) {
|
|
pci_id->segment = ACPI_LOWORD (pci_value);
|
|
}
|
|
|
|
/* The PCI bus number comes from the _BBN method */
|
|
|
|
status = acpi_ut_evaluate_numeric_object (METHOD_NAME__BBN, pci_root_node, &pci_value);
|
|
if (ACPI_SUCCESS (status)) {
|
|
pci_id->bus = ACPI_LOWORD (pci_value);
|
|
}
|
|
|
|
/* Complete this device's pci_id */
|
|
|
|
acpi_os_derive_pci_id (pci_root_node, region_obj->region.node, &pci_id);
|
|
|
|
*region_context = pci_id;
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_pci_bar_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling
|
|
*
|
|
* MUTEX: Assumes namespace is not locked
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_pci_bar_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
ACPI_FUNCTION_TRACE ("ev_pci_bar_region_setup");
|
|
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_cmos_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling
|
|
*
|
|
* MUTEX: Assumes namespace is not locked
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_cmos_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
ACPI_FUNCTION_TRACE ("ev_cmos_region_setup");
|
|
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_default_region_setup
|
|
*
|
|
* PARAMETERS: Handle - Region we are interested in
|
|
* Function - Start or stop
|
|
* handler_context - Address space handler context
|
|
* region_context - Region specific context
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Do any prep work for region handling
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_default_region_setup (
|
|
acpi_handle handle,
|
|
u32 function,
|
|
void *handler_context,
|
|
void **region_context)
|
|
{
|
|
ACPI_FUNCTION_TRACE ("ev_default_region_setup");
|
|
|
|
|
|
if (function == ACPI_REGION_DEACTIVATE) {
|
|
*region_context = NULL;
|
|
}
|
|
else {
|
|
*region_context = handler_context;
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* FUNCTION: acpi_ev_initialize_region
|
|
*
|
|
* PARAMETERS: region_obj - Region we are initializing
|
|
* acpi_ns_locked - Is namespace locked?
|
|
*
|
|
* RETURN: Status
|
|
*
|
|
* DESCRIPTION: Initializes the region, finds any _REG methods and saves them
|
|
* for execution at a later time
|
|
*
|
|
* Get the appropriate address space handler for a newly
|
|
* created region.
|
|
*
|
|
* This also performs address space specific initialization. For
|
|
* example, PCI regions must have an _ADR object that contains
|
|
* a PCI address in the scope of the definition. This address is
|
|
* required to perform an access to PCI config space.
|
|
*
|
|
******************************************************************************/
|
|
|
|
acpi_status
|
|
acpi_ev_initialize_region (
|
|
union acpi_operand_object *region_obj,
|
|
u8 acpi_ns_locked)
|
|
{
|
|
union acpi_operand_object *handler_obj;
|
|
union acpi_operand_object *obj_desc;
|
|
acpi_adr_space_type space_id;
|
|
struct acpi_namespace_node *node;
|
|
acpi_status status;
|
|
struct acpi_namespace_node *method_node;
|
|
acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG;
|
|
union acpi_operand_object *region_obj2;
|
|
|
|
|
|
ACPI_FUNCTION_TRACE_U32 ("ev_initialize_region", acpi_ns_locked);
|
|
|
|
|
|
if (!region_obj) {
|
|
return_ACPI_STATUS (AE_BAD_PARAMETER);
|
|
}
|
|
|
|
if (region_obj->common.flags & AOPOBJ_OBJECT_INITIALIZED) {
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
region_obj2 = acpi_ns_get_secondary_object (region_obj);
|
|
if (!region_obj2) {
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|
|
node = acpi_ns_get_parent_node (region_obj->region.node);
|
|
space_id = region_obj->region.space_id;
|
|
|
|
/* Setup defaults */
|
|
|
|
region_obj->region.handler = NULL;
|
|
region_obj2->extra.method_REG = NULL;
|
|
region_obj->common.flags &= ~(AOPOBJ_SETUP_COMPLETE);
|
|
region_obj->common.flags |= AOPOBJ_OBJECT_INITIALIZED;
|
|
|
|
/* Find any "_REG" method associated with this region definition */
|
|
|
|
status = acpi_ns_search_node (*reg_name_ptr, node,
|
|
ACPI_TYPE_METHOD, &method_node);
|
|
if (ACPI_SUCCESS (status)) {
|
|
/*
|
|
* The _REG method is optional and there can be only one per region
|
|
* definition. This will be executed when the handler is attached
|
|
* or removed
|
|
*/
|
|
region_obj2->extra.method_REG = method_node;
|
|
}
|
|
|
|
/*
|
|
* The following loop depends upon the root Node having no parent
|
|
* ie: acpi_gbl_root_node->parent_entry being set to NULL
|
|
*/
|
|
while (node) {
|
|
/* Check to see if a handler exists */
|
|
|
|
handler_obj = NULL;
|
|
obj_desc = acpi_ns_get_attached_object (node);
|
|
if (obj_desc) {
|
|
/* Can only be a handler if the object exists */
|
|
|
|
switch (node->type) {
|
|
case ACPI_TYPE_DEVICE:
|
|
|
|
handler_obj = obj_desc->device.handler;
|
|
break;
|
|
|
|
case ACPI_TYPE_PROCESSOR:
|
|
|
|
handler_obj = obj_desc->processor.handler;
|
|
break;
|
|
|
|
case ACPI_TYPE_THERMAL:
|
|
|
|
handler_obj = obj_desc->thermal_zone.handler;
|
|
break;
|
|
|
|
default:
|
|
/* Ignore other objects */
|
|
break;
|
|
}
|
|
|
|
while (handler_obj) {
|
|
/* Is this handler of the correct type? */
|
|
|
|
if (handler_obj->address_space.space_id == space_id) {
|
|
/* Found correct handler */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"Found handler %p for region %p in obj %p\n",
|
|
handler_obj, region_obj, obj_desc));
|
|
|
|
status = acpi_ev_attach_region (handler_obj, region_obj,
|
|
acpi_ns_locked);
|
|
|
|
/*
|
|
* Tell all users that this region is usable by running the _REG
|
|
* method
|
|
*/
|
|
if (acpi_ns_locked) {
|
|
status = acpi_ut_release_mutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (status)) {
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
}
|
|
|
|
status = acpi_ev_execute_reg_method (region_obj, 1);
|
|
|
|
if (acpi_ns_locked) {
|
|
status = acpi_ut_acquire_mutex (ACPI_MTX_NAMESPACE);
|
|
if (ACPI_FAILURE (status)) {
|
|
return_ACPI_STATUS (status);
|
|
}
|
|
}
|
|
|
|
return_ACPI_STATUS (AE_OK);
|
|
}
|
|
|
|
/* Try next handler in the list */
|
|
|
|
handler_obj = handler_obj->address_space.next;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* This node does not have the handler we need;
|
|
* Pop up one level
|
|
*/
|
|
node = acpi_ns_get_parent_node (node);
|
|
}
|
|
|
|
/* If we get here, there is no handler for this region */
|
|
|
|
ACPI_DEBUG_PRINT ((ACPI_DB_OPREGION,
|
|
"No handler for region_type %s(%X) (region_obj %p)\n",
|
|
acpi_ut_get_region_name (space_id), space_id, region_obj));
|
|
|
|
return_ACPI_STATUS (AE_NOT_EXIST);
|
|
}
|
|
|