ACPI: Support translation attribute (Bjorn Helgaas)

drivers/acpi/resources/rsaddr.c

@@ -130,6 +130,8 @@ acpi_rs_address16_resource (
 		if (ACPI_IO_RANGE == output_struct->data.address16.resource_type) {
 			output_struct->data.address16.attribute.io.range_attribute =
 				(u16) (temp8 & 0x03);
+			output_struct->data.address16.attribute.io.translation_attribute =
+				(u16) ((temp8 >> 4) & 0x03);
 		}
 		else {
 			/* BUS_NUMBER_RANGE == Address16.Data->resource_type */
@@ -328,6 +330,9 @@ acpi_rs_address16_stream (
 		temp8 = (u8)
 			(linked_list->data.address16.attribute.io.range_attribute &
 			 0x03);
+		temp8 |=
+			(linked_list->data.address16.attribute.io.translation_attribute &
+			 0x03) << 4;
 	}
 
 	*buffer = temp8;
@@ -516,6 +521,8 @@ acpi_rs_address32_resource (
 		if (ACPI_IO_RANGE == output_struct->data.address32.resource_type) {
 			output_struct->data.address32.attribute.io.range_attribute =
 				(u16) (temp8 & 0x03);
+			output_struct->data.address32.attribute.io.translation_attribute =
+				(u16) ((temp8 >> 4) & 0x03);
 		}
 		else {
 			/* BUS_NUMBER_RANGE == output_struct->Data.Address32.resource_type */
@@ -712,6 +719,9 @@ acpi_rs_address32_stream (
 		temp8 = (u8)
 			(linked_list->data.address32.attribute.io.range_attribute &
 			 0x03);
+		temp8 |=
+			(linked_list->data.address32.attribute.io.translation_attribute &
+			 0x03) << 4;
 	}
 
 	*buffer = temp8;
@@ -899,6 +909,8 @@ acpi_rs_address64_resource (
 		if (ACPI_IO_RANGE == output_struct->data.address64.resource_type) {
 			output_struct->data.address64.attribute.io.range_attribute =
 				(u16) (temp8 & 0x03);
+			output_struct->data.address64.attribute.io.translation_attribute =
+				(u16) ((temp8 >> 4) & 0x03);
 		}
 		else {
 			/* BUS_NUMBER_RANGE == output_struct->Data.Address64.resource_type */
@@ -1099,6 +1111,9 @@ acpi_rs_address64_stream (
 		temp8 = (u8)
 			(linked_list->data.address64.attribute.io.range_attribute &
 			 0x03);
+		temp8 |=
+			(linked_list->data.address64.attribute.io.range_attribute &
+			 0x03) << 4;
 	}
 
 	*buffer = temp8;

drivers/acpi/resources/rsdump.c

@@ -551,6 +551,11 @@ acpi_rs_dump_address16 (
 					  "Invalid range attribute\n");
 			break;
 		}
+
+		acpi_os_printf (" Type Specific: %s Translation\n",
+			ACPI_SPARSE_TRANSLATION ==
+			address16_data->attribute.io.translation_attribute ?
+			"Sparse" : "Dense");
 		break;
 
 	case ACPI_BUS_NUMBER_RANGE:
@@ -673,26 +678,31 @@ acpi_rs_dump_address32 (
 		acpi_os_printf ("  Resource Type: Io Range\n");
 
 		switch (address32_data->attribute.io.range_attribute) {
-			case ACPI_NON_ISA_ONLY_RANGES:
-				acpi_os_printf ("  Type Specific: "
-						  "Non-ISA Io Addresses\n");
-				break;
+		case ACPI_NON_ISA_ONLY_RANGES:
+			acpi_os_printf ("  Type Specific: "
+					  "Non-ISA Io Addresses\n");
+			break;
 
-			case ACPI_ISA_ONLY_RANGES:
-				acpi_os_printf ("  Type Specific: "
-						  "ISA Io Addresses\n");
-				break;
+		case ACPI_ISA_ONLY_RANGES:
+			acpi_os_printf ("  Type Specific: "
+					  "ISA Io Addresses\n");
+			break;
 
-			case ACPI_ENTIRE_RANGE:
-				acpi_os_printf ("  Type Specific: "
-						  "ISA and non-ISA Io Addresses\n");
-				break;
+		case ACPI_ENTIRE_RANGE:
+			acpi_os_printf ("  Type Specific: "
+					  "ISA and non-ISA Io Addresses\n");
+			break;
 
-			default:
-				acpi_os_printf ("  Type Specific: "
-						  "Invalid Range attribute");
-				break;
-			}
+		default:
+			acpi_os_printf ("  Type Specific: "
+					  "Invalid Range attribute");
+			break;
+		}
+
+		acpi_os_printf (" Type Specific: %s Translation\n",
+			ACPI_SPARSE_TRANSLATION ==
+			address32_data->attribute.io.translation_attribute ?
+			"Sparse" : "Dense");
 		break;
 
 	case ACPI_BUS_NUMBER_RANGE:
@@ -815,26 +825,31 @@ acpi_rs_dump_address64 (
 		acpi_os_printf ("  Resource Type: Io Range\n");
 
 		switch (address64_data->attribute.io.range_attribute) {
-			case ACPI_NON_ISA_ONLY_RANGES:
-				acpi_os_printf ("  Type Specific: "
-						  "Non-ISA Io Addresses\n");
-				break;
+		case ACPI_NON_ISA_ONLY_RANGES:
+			acpi_os_printf ("  Type Specific: "
+					  "Non-ISA Io Addresses\n");
+			break;
 
-			case ACPI_ISA_ONLY_RANGES:
-				acpi_os_printf ("  Type Specific: "
-						  "ISA Io Addresses\n");
-				break;
+		case ACPI_ISA_ONLY_RANGES:
+			acpi_os_printf ("  Type Specific: "
+					  "ISA Io Addresses\n");
+			break;
 
-			case ACPI_ENTIRE_RANGE:
-				acpi_os_printf ("  Type Specific: "
-						  "ISA and non-ISA Io Addresses\n");
-				break;
+		case ACPI_ENTIRE_RANGE:
+			acpi_os_printf ("  Type Specific: "
+					  "ISA and non-ISA Io Addresses\n");
+			break;
 
-			default:
-				acpi_os_printf ("  Type Specific: "
-						  "Invalid Range attribute");
-				break;
-			}
+		default:
+			acpi_os_printf ("  Type Specific: "
+					  "Invalid Range attribute");
+			break;
+		}
+
+		acpi_os_printf (" Type Specific: %s Translation\n",
+			ACPI_SPARSE_TRANSLATION ==
+			address64_data->attribute.io.translation_attribute ?
+			"Sparse" : "Dense");
 		break;
 
 	case ACPI_BUS_NUMBER_RANGE:

include/acpi/actypes.h

@@ -877,6 +877,8 @@ struct acpi_mem_space_context
 #define ACPI_ISA_ONLY_RANGES            (u8) 0x02
 #define ACPI_ENTIRE_RANGE               (ACPI_NON_ISA_ONLY_RANGES | ACPI_ISA_ONLY_RANGES)
 
+#define ACPI_SPARSE_TRANSLATION         (u8) 0x03
+
 /*
  *  IO Port Descriptor Decode
  */
@@ -1026,7 +1028,7 @@ struct acpi_memory_attribute
 struct acpi_io_attribute
 {
 	u16                                 range_attribute;
-	u16                                 reserved;
+	u16                                 translation_attribute;
 };
 
 struct acpi_bus_attribute