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-rw-r--r--include/acpi/actbl2.h123
1 files changed, 120 insertions, 3 deletions
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index d9ceb3d31629..1b2b356486d1 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -63,6 +63,8 @@
*/
#define ACPI_SIG_ASF "ASF!" /* Alert Standard Format table */
#define ACPI_SIG_BOOT "BOOT" /* Simple Boot Flag Table */
+#define ACPI_SIG_CSRT "CSRT" /* Core System Resource Table */
+#define ACPI_SIG_DBG2 "DBG2" /* Debug Port table type 2 */
#define ACPI_SIG_DBGP "DBGP" /* Debug Port table */
#define ACPI_SIG_DMAR "DMAR" /* DMA Remapping table */
#define ACPI_SIG_HPET "HPET" /* High Precision Event Timer table */
@@ -96,9 +98,15 @@
#pragma pack(1)
/*
- * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
- * This is the only type that is even remotely portable. Anything else is not
- * portable, so do not use any other bitfield types.
+ * Note: C bitfields are not used for this reason:
+ *
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
*/
/*******************************************************************************
@@ -232,6 +240,115 @@ struct acpi_table_boot {
/*******************************************************************************
*
+ * CSRT - Core System Resource Table
+ * Version 0
+ *
+ * Conforms to the "Core System Resource Table (CSRT)", November 14, 2011
+ *
+ ******************************************************************************/
+
+struct acpi_table_csrt {
+ struct acpi_table_header header; /* Common ACPI table header */
+};
+
+/* Resource Group subtable */
+
+struct acpi_csrt_group {
+ u32 length;
+ u32 vendor_id;
+ u32 subvendor_id;
+ u16 device_id;
+ u16 subdevice_id;
+ u16 revision;
+ u16 reserved;
+ u32 info_length;
+
+ /* Shared data (length = info_length) immediately follows */
+};
+
+/* Resource Descriptor subtable */
+
+struct acpi_csrt_descriptor {
+ u32 length;
+ u16 type;
+ u16 subtype;
+ u32 uid;
+
+ /* Resource-specific information immediately follows */
+};
+
+/* Resource Types */
+
+#define ACPI_CSRT_TYPE_INTERRUPT 0x0001
+#define ACPI_CSRT_TYPE_TIMER 0x0002
+#define ACPI_CSRT_TYPE_DMA 0x0003
+
+/* Resource Subtypes */
+
+#define ACPI_CSRT_XRUPT_LINE 0x0000
+#define ACPI_CSRT_XRUPT_CONTROLLER 0x0001
+#define ACPI_CSRT_TIMER 0x0000
+#define ACPI_CSRT_DMA_CHANNEL 0x0000
+#define ACPI_CSRT_DMA_CONTROLLER 0x0001
+
+/*******************************************************************************
+ *
+ * DBG2 - Debug Port Table 2
+ * Version 0 (Both main table and subtables)
+ *
+ * Conforms to "Microsoft Debug Port Table 2 (DBG2)", May 22 2012.
+ *
+ ******************************************************************************/
+
+struct acpi_table_dbg2 {
+ struct acpi_table_header header; /* Common ACPI table header */
+ u32 info_offset;
+ u32 info_count;
+};
+
+/* Debug Device Information Subtable */
+
+struct acpi_dbg2_device {
+ u8 revision;
+ u16 length;
+ u8 register_count; /* Number of base_address registers */
+ u16 namepath_length;
+ u16 namepath_offset;
+ u16 oem_data_length;
+ u16 oem_data_offset;
+ u16 port_type;
+ u16 port_subtype;
+ u16 reserved;
+ u16 base_address_offset;
+ u16 address_size_offset;
+ /*
+ * Data that follows:
+ * base_address (required) - Each in 12-byte Generic Address Structure format.
+ * address_size (required) - Array of u32 sizes corresponding to each base_address register.
+ * Namepath (required) - Null terminated string. Single dot if not supported.
+ * oem_data (optional) - Length is oem_data_length.
+ */
+};
+
+/* Types for port_type field above */
+
+#define ACPI_DBG2_SERIAL_PORT 0x8000
+#define ACPI_DBG2_1394_PORT 0x8001
+#define ACPI_DBG2_USB_PORT 0x8002
+#define ACPI_DBG2_NET_PORT 0x8003
+
+/* Subtypes for port_subtype field above */
+
+#define ACPI_DBG2_16550_COMPATIBLE 0x0000
+#define ACPI_DBG2_16550_SUBSET 0x0001
+
+#define ACPI_DBG2_1394_STANDARD 0x0000
+
+#define ACPI_DBG2_USB_XHCI 0x0000
+#define ACPI_DBG2_USB_EHCI 0x0001
+
+/*******************************************************************************
+ *
* DBGP - Debug Port table
* Version 1
*