Commit 4ac78baf authored by Al Stone's avatar Al Stone Committed by Rafael J. Wysocki
Browse files

ACPICA: IORT: Add in support for the SMMUv3 subtable 

ACPICA commit 9f7c3e148f440049615e2791d73b292f65692d7e

The most recent version of the IORT specification adds in a definition
for a subtable to describe SMMUv3 devices; there is already a subtable
for SMMUv1/v2 devices.

Add in the definition of the subtable, add in the code to compile it,
and add in a template for it.

Link: https://github.com/acpica/acpica/commit/9f7c3e14


Signed-off-by: default avatarAl Stone <ahs3@redhat.com>
Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLv Zheng <lv.zheng@intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 7cd55c76

include/acpi/actbl2.h

+20 −2
Original line number Diff line number Diff line
@@ -660,7 +660,7 @@ struct acpi_ibft_target { 
 * IORT - IO Remapping Table

 *

 * Conforms to "IO Remapping Table System Software on ARM Platforms",

 * Document number: ARM DEN 0049A, 2015

 * Document number: ARM DEN 0049B, October 2015

 *

 ******************************************************************************/
@@ -690,7 +690,8 @@ enum acpi_iort_node_type { 
	ACPI_IORT_NODE_ITS_GROUP = 0x00,

	ACPI_IORT_NODE_NAMED_COMPONENT = 0x01,

	ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,

	ACPI_IORT_NODE_SMMU = 0x03

	ACPI_IORT_NODE_SMMU = 0x03,

	ACPI_IORT_NODE_SMMU_V3 = 0x04

};



struct acpi_iort_id_mapping {
@@ -780,6 +781,23 @@ struct acpi_iort_smmu { 
#define ACPI_IORT_SMMU_DVM_SUPPORTED    (1)

#define ACPI_IORT_SMMU_COHERENT_WALK    (1<<1)



struct acpi_iort_smmu_v3 {

	u64 base_address;	/* SMMUv3 base address */

	u32 flags;

	u32 reserved;

	u64 vatos_address;

	u32 model;		/* O: generic SMMUv3 */

	u32 event_gsiv;

	u32 pri_gsiv;

	u32 gerr_gsiv;

	u32 sync_gsiv;

};



/* Masks for Flags field above */



#define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE   (1)

#define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE     (1<<1)



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

 *

 * IVRS - I/O Virtualization Reporting Structure

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