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ACPICA: IORT: Updates for revision E.b

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ACPICA commit 8710a708faed728ea2672b8da842b2e9af1cf5bd

IORT revision E.b (ARM DEN 0049E.b) contains a few additions like,
    -Added an identifier field in the node descriptors to aid table
     cross-referencing.
    -Introduced the Reserved Memory Range(RMR) node. This is used
     to describe memory ranges that are used by endpoints and require
     a unity mapping in SMMU.
    -Introduced a flag in the RC node to express support for PRI.
    -Added a flag in the RC node to declare support for PASID forward
     information.

Please note that IORT Rev E and E.a have known issues and are not
supported.

Link: https://github.com/acpica/acpica/commit/8710a708
Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Shameer Kolothum 2021-04-06 14:30:27 -07:00 committed by Rafael J. Wysocki
parent e563f6fc9e
commit 8e1fdd7f16
1 changed files with 20 additions and 6 deletions
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26
include/acpi/actbl2.h
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@ -68,7 +68,7 @@
* IORT - IO Remapping Table
*
* Conforms to "IO Remapping Table System Software on ARM Platforms",
* Document number: ARM DEN 0049D, March 2018
* Document number: ARM DEN 0049E.b, Feb 2021
*
******************************************************************************/
@ -86,7 +86,7 @@ struct acpi_iort_node {
u8 type;
u16 length;
u8 revision;
u32 reserved;
u32 identifier;
u32 mapping_count;
u32 mapping_offset;
char node_data[1];
@ -100,7 +100,8 @@ enum acpi_iort_node_type {
ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,
ACPI_IORT_NODE_SMMU = 0x03,
ACPI_IORT_NODE_SMMU_V3 = 0x04,
ACPI_IORT_NODE_PMCG = 0x05
ACPI_IORT_NODE_PMCG = 0x05,
ACPI_IORT_NODE_RMR = 0x06,
};
struct acpi_iort_id_mapping {
@ -167,10 +168,11 @@ struct acpi_iort_root_complex {
u8 reserved[3]; /* Reserved, must be zero */
};
/* Values for ats_attribute field above */
/* Masks for ats_attribute field above */
#define ACPI_IORT_ATS_SUPPORTED 0x00000001 /* The root complex supports ATS */
#define ACPI_IORT_ATS_UNSUPPORTED 0x00000000 /* The root complex doesn't support ATS */
#define ACPI_IORT_ATS_SUPPORTED (1) /* The root complex ATS support */
#define ACPI_IORT_PRI_SUPPORTED (1<<1) /* The root complex PRI support */
#define ACPI_IORT_PASID_FWD_SUPPORTED (1<<2) /* The root complex PASID forward support */
struct acpi_iort_smmu {
u64 base_address; /* SMMU base address */
@ -241,6 +243,18 @@ struct acpi_iort_pmcg {
u64 page1_base_address;
};
struct acpi_iort_rmr {
u32 flags;
u32 rmr_count;
u32 rmr_offset;
};
struct acpi_iort_rmr_desc {
u64 base_address;
u64 length;
u32 reserved;
};
/*******************************************************************************
*
* IVRS - I/O Virtualization Reporting Structure