summaryrefslogtreecommitdiff
path: root/Documentation/kernel-parameters.txt
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 03:07:04 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 03:07:04 +0300
commite0fb1b36398487475e0d2c50264e4ec1eaed3e11 (patch)
tree4541c8d00a265d2db5b7f2b2c33eb8ccb5819a37 /Documentation/kernel-parameters.txt
parentf4c80d5a16eb4b08a0d9ade154af1ebdc63f5752 (diff)
parent6c0b43df74f900e7f31a49d1844f166df0f8afc6 (diff)
downloadlinux-e0fb1b36398487475e0d2c50264e4ec1eaed3e11.tar.xz
Merge tag 'iommu-updates-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel: "The updates include: - rate limiting for the VT-d fault handler - remove statistics code from the AMD IOMMU driver. It is unused and should be replaced by something more generic if needed - per-domain pagesize-bitmaps in IOMMU core code to support systems with different types of IOMMUs - support for ACPI devices in the AMD IOMMU driver - 4GB mode support for Mediatek IOMMU driver - ARM-SMMU updates from Will Deacon: - support for 64k pages with SMMUv1 implementations (e.g MMU-401) - remove open-coded 64-bit MMIO accessors - initial support for 16-bit VMIDs, as supported by some ThunderX SMMU implementations - a couple of errata workarounds for silicon in the field - various fixes here and there" * tag 'iommu-updates-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (44 commits) iommu/arm-smmu: Use per-domain page sizes. iommu/amd: Remove statistics code iommu/dma: Finish optimising higher-order allocations iommu: Allow selecting page sizes per domain iommu: of: enforce const-ness of struct iommu_ops iommu: remove unused priv field from struct iommu_ops iommu/dma: Implement scatterlist segment merging iommu/arm-smmu: Clear cache lock bit of ACR iommu/arm-smmu: Support SMMUv1 64KB supplement iommu/arm-smmu: Decouple context format from kernel config iommu/arm-smmu: Tidy up 64-bit/atomic I/O accesses io-64-nonatomic: Add relaxed accessor variants iommu/arm-smmu: Work around MMU-500 prefetch errata iommu/arm-smmu: Convert ThunderX workaround to new method iommu/arm-smmu: Differentiate specific implementations iommu/arm-smmu: Workaround for ThunderX erratum #27704 iommu/arm-smmu: Add support for 16 bit VMID iommu/amd: Move get_device_id() and friends to beginning of file iommu/amd: Don't use IS_ERR_VALUE to check integer values iommu/amd: Signedness bug in acpihid_device_group() ...
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 794403166a8f..f5c35901144c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1787,6 +1787,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
PCI device 00:14.0 write the parameter as:
ivrs_hpet[0]=00:14.0
+ ivrs_acpihid [HW,X86_64]
+ Provide an override to the ACPI-HID:UID<->DEVICE-ID
+ mapping provided in the IVRS ACPI table. For
+ example, to map UART-HID:UID AMD0020:0 to
+ PCI device 00:14.5 write the parameter as:
+ ivrs_acpihid[00:14.5]=AMD0020:0
+
js= [HW,JOY] Analog joystick
See Documentation/input/joystick.txt.