acpi: Add support for DMAR

[oweals/u-boot.git] / include / acpi / acpi_table.h

diff --git a/include/acpi/acpi_table.h b/include/acpi/acpi_table.h
index fdd7682c89727f898fb37a8aaf6c67b75d27757e..194be9aa589bb3d66821ccbd0f14f98fb96a24da 100644 (file)
--- a/include/acpi/acpi_table.h
+++ b/include/acpi/acpi_table.h
@@ -360,6 +360,51 @@ struct acpi_csrt_shared_info {
        u32 max_block_size;
 };
 
+enum dmar_type {
+       DMAR_DRHD = 0,
+       DMAR_RMRR = 1,
+       DMAR_ATSR = 2,
+       DMAR_RHSA = 3,
+       DMAR_ANDD = 4
+};
+
+enum {
+       DRHD_INCLUDE_PCI_ALL = BIT(0)
+};
+
+enum dmar_flags {
+       DMAR_INTR_REMAP                 = BIT(0),
+       DMAR_X2APIC_OPT_OUT             = BIT(1),
+       DMAR_CTRL_PLATFORM_OPT_IN_FLAG  = BIT(2),
+};
+
+struct dmar_entry {
+       u16 type;
+       u16 length;
+       u8 flags;
+       u8 reserved;
+       u16 segment;
+       u64 bar;
+};
+
+struct dmar_rmrr_entry {
+       u16 type;
+       u16 length;
+       u16 reserved;
+       u16 segment;
+       u64 bar;
+       u64 limit;
+};
+
+/* DMAR (DMA Remapping Reporting Structure) */
+struct __packed acpi_dmar {
+       struct acpi_table_header header;
+       u8 host_address_width;
+       u8 flags;
+       u8 reserved[10];
+       struct dmar_entry structure[0];
+};
+
 /* DBG2 definitions are partially used for SPCR interface_type */
 
 /* Types for port_type field */
@@ -451,6 +496,15 @@ enum acpi_tables {
  */
 int acpi_get_table_revision(enum acpi_tables table);
 
+/**
+ * acpi_create_dmar() - Create a DMA Remapping Reporting (DMAR) table
+ *
+ * @dmar: Place to put the table
+ * @flags: DMAR flags to use
+ * @return 0 if OK, -ve on error
+ */
+int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags);
+
 #endif /* !__ACPI__*/
 
 #include <asm/acpi_table.h>