Commit ac4dbb75 authored by Wang ShaoBo's avatar Wang ShaoBo Committed by Yang Yingliang
Browse files

ACPI 6.x: Add definitions for MPAM table 

hulk inclusion
category: feature
bugzilla: 28055
CVE: NA

------------------------------

Add structures for the ACPI MPAM table.

Code was partially borrowed from James's:
http://www.linux-arm.org/git?p=linux-jm.git;a=commit;h=b307d07f49d11a


b6841153315309a67e3163cac7, "ACPI 6.x: Add definitions for MPAM table
 [dead]".

Different with James's, we add several fields in acpi_mpam_header
structure according to MPAM ACPI Description 1.0.

Signed-off-by: default avatarWang ShaoBo <bobo.shaobowang@huawei.com>
Reviewed-By: default avatarXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: default avatarYang Yingliang <yangyingliang@huawei.com>
parent 859ec80f

include/acpi/actbl2.h

+58 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#define ACPI_SIG_MCHI           "MCHI"	/* Management Controller Host Interface table */

#define ACPI_SIG_MPST           "MPST"	/* Memory Power State Table */

#define ACPI_SIG_MSCT           "MSCT"	/* Maximum System Characteristics Table */

#define ACPI_SIG_MPAM           "MPAM"	/* Memory Partitioning and Monitoring Table */

#define ACPI_SIG_MSDM           "MSDM"	/* Microsoft Data Management Table */

#define ACPI_SIG_MTMR           "MTMR"	/* MID Timer table */

#define ACPI_SIG_NFIT           "NFIT"	/* NVDIMM Firmware Interface Table */
@@ -905,6 +906,63 @@ struct acpi_msct_proximity { 
	u64 memory_capacity;	/* In bytes */

};



/*

 * MPAM - Memory Partitioning and Monitoring table

 *

 * Conforms to "MPAM ACPI Description 1.0",

 * Null 0, 2017. Copyright 2017 ARM Limited or its affiliates.

 *

 ******************************************************************************/

struct acpi_table_mpam {

	struct acpi_table_header	header;/* Common ACPI table header */

};



/* Subtable header for MPAM */



struct acpi_mpam_header {

	u8			type;

	u16			length;

	u8			reserved;

	u64			base_address;

	u32			overflow_interrupt;

	u32			overflow_flags;

	u32			error_interrupt;

	u32			error_interrupt_flags;

	u32			not_ready_max;

	u32			offset;

};



/* Values for subtable type in ACPI_MPAM_NODE_HEADER */



enum AcpiMpamType {

	ACPI_MPAM_TYPE_SMMU		= 0,

	ACPI_MPAM_TYPE_CACHE		= 1,

	ACPI_MPAM_TYPE_MEMORY		= 2,

	ACPI_MPAM_TYPE_UNKNOWN		= 3

};



/* Flags */

#define ACPI_MPAM_IRQ_FLAGS    (1)     /* Interrupt mode */



/*

 *  MPAM Subtables

 */

struct acpi_mpam_node_smmu {

	struct acpi_mpam_header	header;

	u32			IORT_ref;

};



struct acpi_mpam_node_cache {

	struct acpi_mpam_header	header;

	u32			PPTT_ref;

};



struct acpi_mpam_node_memory {

	struct acpi_mpam_header	header;

	u8			proximity_domain;

	u8			reserved1[3];

};



/*******************************************************************************

 *

 * MSDM - Microsoft Data Management table