@@ -1410,7 +1410,11 @@ struct acpi_pdtt_channel {
struct acpi_table_pmtt {
struct acpi_table_header header; /* Common ACPI table header */
- u32 reserved;
+ u32 memory_device_count;
+ /*
+ * Immediately followed by:
+ * MEMORY_DEVICE memory_device_struct[memory_device_count];
+ */
};
/* Common header for PMTT subtables that follow main table */
@@ -1421,6 +1425,12 @@ struct acpi_pmtt_header {
u16 length;
u16 flags;
u16 reserved2;
+ u32 memory_device_count; /* Zero means no memory device structs follow */
+ /*
+ * Immediately followed by:
+ * u8 type_specific_data[]
+ * MEMORY_DEVICE memory_device_struct[memory_device_count];
+ */
};
/* Values for Type field above */
@@ -1428,7 +1438,8 @@ struct acpi_pmtt_header {
#define ACPI_PMTT_TYPE_SOCKET 0
#define ACPI_PMTT_TYPE_CONTROLLER 1
#define ACPI_PMTT_TYPE_DIMM 2
-#define ACPI_PMTT_TYPE_RESERVED 3 /* 0x03-0xFF are reserved */
+#define ACPI_PMTT_TYPE_RESERVED 3 /* 0x03-0xFE are reserved */
+#define ACPI_PMTT_TYPE_VENDOR 0xFF
/* Values for Flags field above */
@@ -1447,37 +1458,43 @@ struct acpi_pmtt_socket {
u16 socket_id;
u16 reserved;
};
+ /*
+ * Immediately followed by:
+ * MEMORY_DEVICE memory_device_struct[memory_device_count];
+ */
/* 1: Memory Controller subtable */
struct acpi_pmtt_controller {
struct acpi_pmtt_header header;
- u32 read_latency;
- u32 write_latency;
- u32 read_bandwidth;
- u32 write_bandwidth;
- u16 access_width;
- u16 alignment;
+ u16 controller_id;
u16 reserved;
- u16 domain_count;
-};
-
-/* 1a: Proximity Domain substructure */
-
-struct acpi_pmtt_domain {
- u32 proximity_domain;
};
+ /*
+ * Immediately followed by:
+ * MEMORY_DEVICE memory_device_struct[memory_device_count];
+ */
/* 2: Physical Component Identifier (DIMM) */
struct acpi_pmtt_physical_component {
struct acpi_pmtt_header header;
- u16 component_id;
- u16 reserved;
- u32 memory_size;
u32 bios_handle;
};
+/* 0xFF: Vendor Specific Data */
+
+struct acpi_pmtt_vendor_specific {
+ struct acpi_pmtt_header header;
+ u8 type_uuid[16];
+ u8 specific[];
+ /*
+ * Immediately followed by:
+ * u8 vendor_specific_data[];
+ * MEMORY_DEVICE memory_device_struct[memory_device_count];
+ */
+};
+
/*******************************************************************************
*
* PPTT - Processor Properties Topology Table (ACPI 6.2)