diff options
| -rw-r--r-- | drivers/acpi/acpica/evregion.c | 10 | ||||
| -rw-r--r-- | include/acpi/actypes.h | 8 |
2 files changed, 18 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 4ef43c8ef5e7..80b68f216b46 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -162,6 +162,16 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, return_ACPI_STATUS(AE_NOT_EXIST); } + if (region_obj->region.space_id == ACPI_ADR_SPACE_PLATFORM_COMM) { + struct acpi_pcc_info *ctx = + handler_desc->address_space.context; + + ctx->internal_buffer = + field_obj->field.internal_pcc_buffer; + ctx->length = region_obj->region.length; + ctx->subspace_id = region_obj->region.address; + } + /* * We must exit the interpreter because the region setup will * potentially execute control methods (for example, the _REG method diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 83a7ee1fbd7c..69e89d572b9e 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -1103,6 +1103,14 @@ struct acpi_connection_info { u8 access_length; }; +/* Special Context data for PCC Opregion (ACPI 6.3) */ + +struct acpi_pcc_info { + u8 subspace_id; + u16 length; + u8 *internal_buffer; +}; + typedef acpi_status (*acpi_adr_space_setup) (acpi_handle region_handle, u32 function, |