diff options
Diffstat (limited to 'drivers/acpi/acpica/tbxfload.c')
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 40 |
1 files changed, 36 insertions, 4 deletions
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index 278666e39563..3151968c10d1 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -47,6 +47,7 @@ #include "accommon.h" #include "acnamesp.h" #include "actables.h" +#include "acevents.h" #define _COMPONENT ACPI_TABLES ACPI_MODULE_NAME("tbxfload") @@ -68,6 +69,25 @@ acpi_status __init acpi_load_tables(void) ACPI_FUNCTION_TRACE(acpi_load_tables); + /* + * Install the default operation region handlers. These are the + * handlers that are defined by the ACPI specification to be + * "always accessible" -- namely, system_memory, system_IO, and + * PCI_Config. This also means that no _REG methods need to be + * run for these address spaces. We need to have these handlers + * installed before any AML code can be executed, especially any + * module-level code (11/2015). + * Note that we allow OSPMs to install their own region handlers + * between acpi_initialize_subsystem() and acpi_load_tables() to use + * their customized default region handlers. + */ + status = acpi_ev_install_region_handlers(); + if (ACPI_FAILURE(status) && status != AE_ALREADY_EXISTS) { + ACPI_EXCEPTION((AE_INFO, status, + "During Region initialization")); + return_ACPI_STATUS(status); + } + /* Load the namespace from the tables */ status = acpi_tb_load_namespace(); @@ -83,6 +103,20 @@ acpi_status __init acpi_load_tables(void) "While loading namespace from ACPI tables")); } + if (!acpi_gbl_group_module_level_code) { + /* + * Initialize the objects that remain uninitialized. This + * runs the executable AML that may be part of the + * declaration of these objects: + * operation_regions, buffer_fields, Buffers, and Packages. + */ + status = acpi_ns_initialize_objects(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + } + + acpi_gbl_namespace_initialized = TRUE; return_ACPI_STATUS(status); } @@ -206,9 +240,7 @@ acpi_status acpi_tb_load_namespace(void) } if (!tables_failed) { - ACPI_INFO((AE_INFO, - "%u ACPI AML tables successfully acquired and loaded\n", - tables_loaded)); + ACPI_INFO(("%u ACPI AML tables successfully acquired and loaded\n", tables_loaded)); } else { ACPI_ERROR((AE_INFO, "%u table load failures, %u successful", @@ -301,7 +333,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table) /* Install the table and load it into the namespace */ - ACPI_INFO((AE_INFO, "Host-directed Dynamic ACPI Table Load:")); + ACPI_INFO(("Host-directed Dynamic ACPI Table Load:")); (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); status = acpi_tb_install_standard_table(ACPI_PTR_TO_PHYSADDR(table), |