lkml.org 
[lkml]   [2017]   [May]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subject[v4 0/4] Cavium ThunderX2 SMMUv3 errata workarounds
Date
From: Linu Cherian <linu.cherian@cavium.com>

Cavium ThunderX2 SMMUv3 implementation has two Silicon Erratas.
1. Errata ID #74
SMMU register alias Page 1 is not implemented
2. Errata ID #126
SMMU doesnt support unique IRQ lines and also MSI for gerror,
eventq and cmdq-sync

The following patchset does software workaround for these two erratas.

This series is based on patchset.
https://www.spinics.net/lists/arm-kernel/msg578443.html

Changes from v3:
- Merged patches 1, 2 and 4 of Version 3.
- Modified the page1_offset_adjust() and get_irq_flags() implementation as
suggested by Robin.

Changes from v2:
Updated "Documentation/devicetree/bindings/iommu/arm,smmu-v3.txt" document with
new SMMU option used to enable errata workaround.

Changes from v1:
Since the use of MIDR register is rejected and SMMU_IIDR is broken on this
silicon, as suggested by Will Deacon modified the patches to use ThunderX2
SMMUv3 IORT model number to enable errata workaround.


Geetha Sowjanya (1):
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126

Linu Cherian (3):
ACPICA: IORT: Add Cavium ThunderX2 SMMUv3 model definition.
ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3
model
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74

Documentation/arm64/silicon-errata.txt | 2 +
.../devicetree/bindings/iommu/arm,smmu-v3.txt | 6 ++
drivers/acpi/arm64/iort.c | 10 +-
drivers/iommu/arm-smmu-v3.c | 109 ++++++++++++++++-----
include/acpi/actbl2.h | 2 +
5 files changed, 103 insertions(+), 26 deletions(-)

--
1.8.3.1

\
 
 \ /
  Last update: 2017-05-10 21:18    [W:0.054 / U:7.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site