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ACPICA: Add support for DMAR table

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Implement support for ACPI DMAR table (DMA
Remapping Table) in header files and disassembler.

Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore
2007-02-02 19:48:19 +03:00
committed by Len Brown
parent ad71860a17
commit 2502fffb19
2 changed files with 84 additions and 3 deletions
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73
include/acpi/actbl1.h
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@@ -61,6 +61,7 @@
#define ACPI_SIG_BOOT "BOOT" /* Simple Boot Flag Table */
#define ACPI_SIG_CPEP "CPEP" /* Corrected Platform Error Polling table */
#define ACPI_SIG_DBGP "DBGP" /* Debug Port table */
#define ACPI_SIG_DMAR "DMAR" /* DMA Remapping table */
#define ACPI_SIG_ECDT "ECDT" /* Embedded Controller Boot Resources Table */
#define ACPI_SIG_HPET "HPET" /* High Precision Event Timer table */
#define ACPI_SIG_MADT "APIC" /* Multiple APIC Description Table */
@@ -226,6 +227,78 @@ struct acpi_table_dbgp {
struct acpi_generic_address debug_port;
};
/*******************************************************************************
*
* DMAR - DMA Remapping table
*
******************************************************************************/
struct acpi_table_dmar {
struct acpi_table_header header; /* Common ACPI table header */
u8 width; /* Host Address Width */
u8 reserved[11];
};
/* DMAR subtable header */
struct acpi_dmar_header {
u16 type;
u16 length;
u8 flags;
u8 reserved[3];
};
/* Values for subtable type in struct acpi_dmar_header */
enum acpi_dmar_type {
ACPI_DMAR_TYPE_HARDWARE_UNIT = 0,
ACPI_DMAR_TYPE_RESERVED_MEMORY = 1,
ACPI_DMAR_TYPE_RESERVED = 2 /* 2 and greater are reserved */
};
struct acpi_dmar_device_scope {
u8 entry_type;
u8 length;
u8 segment;
u8 bus;
};
/* Values for entry_type in struct acpi_dmar_device_scope */
enum acpi_dmar_scope_type {
ACPI_DMAR_SCOPE_TYPE_NOT_USED = 0,
ACPI_DMAR_SCOPE_TYPE_ENDPOINT = 1,
ACPI_DMAR_SCOPE_TYPE_BRIDGE = 2,
ACPI_DMAR_SCOPE_TYPE_RESERVED = 3 /* 3 and greater are reserved */
};
/*
* DMAR Sub-tables, correspond to Type in struct acpi_dmar_header
*/
/* 0: Hardware Unit Definition */
struct acpi_dmar_hardware_unit {
struct acpi_dmar_header header;
u64 address; /* Register Base Address */
};
/* Flags */
#define ACPI_DMAR_INCLUDE_ALL (1)
/* 1: Reserved Memory Defininition */
struct acpi_dmar_reserved_memory {
struct acpi_dmar_header header;
u64 address; /* 4_k aligned base address */
u64 end_address; /* 4_k aligned limit address */
};
/* Flags */
#define ACPI_DMAR_ALLOW_ALL (1)
/*******************************************************************************
*
* ECDT - Embedded Controller Boot Resources Table