[Xen-devel] [PATCH v2 2/2] ACPICA: IORT: Add in support for the SMMUv3 subtable

[Sameer Goel <sgoel@xxxxxxxxxxxxxx>]

From: Al Stone <ahs3@xxxxxxxxxx>

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: Al Stone <ahs3@xxxxxxxxxx>
Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx>
Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
[Linux commit 4ac78baf88d85c49883fcc87d31198ebe408e54d]
Signed-off-by: Sameer Goel <sgoel@xxxxxxxxxxxxxx>
---
 xen/include/acpi/actbl2.h | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/xen/include/acpi/actbl2.h b/xen/include/acpi/actbl2.h
index 7d66014..d1cd148 100644
--- a/xen/include/acpi/actbl2.h
+++ b/xen/include/acpi/actbl2.h
@@ -560,7 +560,7 @@ 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
  *
  
******************************************************************************/
 
@@ -590,7 +590,8 @@ 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 {
@@ -680,6 +681,23 @@ 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
-- 
Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc. 
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux 
Foundation Collaborative Project.


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