diff options
Diffstat (limited to 'drivers/acpi/acpica/evrgnini.c')
| -rw-r--r-- | drivers/acpi/acpica/evrgnini.c | 88 |
1 files changed, 61 insertions, 27 deletions
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 17df5dacd43c..b03952798af5 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -3,7 +3,7 @@ * * Module Name: evrgnini- ACPI address_space (op_region) init * - * Copyright (C) 2000 - 2018, Intel Corp. + * Copyright (C) 2000 - 2025, Intel Corp. * *****************************************************************************/ @@ -38,6 +38,7 @@ acpi_ev_system_memory_region_setup(acpi_handle handle, union acpi_operand_object *region_desc = (union acpi_operand_object *)handle; struct acpi_mem_space_context *local_region_context; + struct acpi_mem_mapping *mm; ACPI_FUNCTION_TRACE(ev_system_memory_region_setup); @@ -46,13 +47,14 @@ acpi_ev_system_memory_region_setup(acpi_handle handle, local_region_context = (struct acpi_mem_space_context *)*region_context; - /* Delete a cached mapping if present */ + /* Delete memory mappings if present */ - if (local_region_context->mapped_length) { - acpi_os_unmap_memory(local_region_context-> - mapped_logical_address, - local_region_context-> - mapped_length); + while (local_region_context->first_mm) { + mm = local_region_context->first_mm; + local_region_context->first_mm = mm->next_mm; + acpi_os_unmap_memory(mm->logical_address, + mm->length); + ACPI_FREE(mm); } ACPI_FREE(local_region_context); *region_context = NULL; @@ -198,7 +200,6 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, * root bridge. Still need to return a context object * for the new PCI_Config operation region, however. */ - status = AE_OK; } else { ACPI_EXCEPTION((AE_INFO, status, "Could not install PciConfig handler " @@ -407,6 +408,58 @@ acpi_ev_cmos_region_setup(acpi_handle handle, /******************************************************************************* * + * FUNCTION: acpi_ev_data_table_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: Setup a data_table_region + * + * MUTEX: Assumes namespace is not locked + * + ******************************************************************************/ + +acpi_status +acpi_ev_data_table_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_data_table_mapping *local_region_context; + + ACPI_FUNCTION_TRACE(ev_data_table_region_setup); + + if (function == ACPI_REGION_DEACTIVATE) { + if (*region_context) { + ACPI_FREE(*region_context); + *region_context = NULL; + } + return_ACPI_STATUS(AE_OK); + } + + /* Create a new context */ + + local_region_context = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_data_table_mapping)); + if (!(local_region_context)) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + /* Save the data table pointer for use in the handler */ + + local_region_context->pointer = region_desc->region.pointer; + + *region_context = local_region_context; + return_ACPI_STATUS(AE_OK); +} + +/******************************************************************************* + * * FUNCTION: acpi_ev_default_region_setup * * PARAMETERS: handle - Region we are interested in @@ -516,25 +569,6 @@ acpi_status acpi_ev_initialize_region(union acpi_operand_object *region_obj) handler_obj = obj_desc->common_notify.handler; break; - case ACPI_TYPE_METHOD: - /* - * If we are executing module level code, the original - * Node's object was replaced by this Method object and we - * saved the handler in the method object. - * - * Note: Only used for the legacy MLC support. Will - * be removed in the future. - * - * See acpi_ns_exec_module_code - */ - if (!acpi_gbl_execute_tables_as_methods && - obj_desc->method. - info_flags & ACPI_METHOD_MODULE_LEVEL) { - handler_obj = - obj_desc->method.dispatch.handler; - } - break; - default: /* Ignore other objects */ |