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| author | Robin Murphy <robin.murphy@arm.com> | 2018-06-01 22:06:39 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-06-06 09:53:42 +0300 |
| commit | a53eaef6da5dc0abd899d6512a31c6d94c92f9be (patch) | |
| tree | 66986c475fa5b42e6e98ba7e4f89a61984d5c12e /include/acpi | |
| parent | d87be0438e3d4e249926f0431bcec991e4a9eea6 (diff) | |
| download | linux-a53eaef6da5dc0abd899d6512a31c6d94c92f9be.tar.xz | |
ACPICA: IORT: Add PMCG node supprt
PMCG nodes were added by IORT revision C, with the unfortunate oversight
that it only defined a single base address, and thus was incapable of
properly describing PMCG implementations with PMCG_CFGR.RELOC_CTRS = 1,
where the counters are in a separate page from the control registers.
Revision D corrects this by clarifying the existing field as the page 0
base address and adding a second field to describe the page 1 address
when implemented. With the spec now fit for purpose, let's support it.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/acpi')
| -rw-r--r-- | include/acpi/actbl2.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 46dbc1018b2d..c50ef7e6b942 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -98,7 +98,8 @@ enum acpi_iort_node_type { ACPI_IORT_NODE_NAMED_COMPONENT = 0x01, ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02, ACPI_IORT_NODE_SMMU = 0x03, - ACPI_IORT_NODE_SMMU_V3 = 0x04 + ACPI_IORT_NODE_SMMU_V3 = 0x04, + ACPI_IORT_NODE_PMCG = 0x05 }; struct acpi_iort_id_mapping { @@ -232,6 +233,13 @@ struct acpi_iort_smmu_v3 { #define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE (3<<1) #define ACPI_IORT_SMMU_V3_PXM_VALID (1<<3) +struct acpi_iort_pmcg { + u64 page0_base_address; + u32 overflow_gsiv; + u32 node_reference; + u64 page1_base_address; +}; + /******************************************************************************* * * IVRS - I/O Virtualization Reporting Structure |