linux-toradex.git/include/linux/intel-iommu.h, branch v4.18-rc4

iommu/vt-d: Clean up pasid quirk for pre-production devices

2018-05-15T14:34:52+00:00

The pasid28 quirk is needed only for some pre-production devices.
Remove it to make the code concise.

Signed-off-by: Ashok Raj 
Signed-off-by: Lu Baolu 
Signed-off-by: Joerg Roedel

iommu/vt-d: Clean/document fault status flags

2018-02-13T16:40:54+00:00

So one could decode them without opening the specification.

Signed-off-by: Dmitry Safonov 
Signed-off-by: Joerg Roedel

iommu/vt-d: Add a check for 5-level paging support

2018-01-17T14:02:50+00:00

Add a check to verify IOMMU 5-level paging support. If the CPU supports
supports 5-level paging but the IOMMU does not support it then disable
SVM by not allocating PASID tables.

Signed-off-by: Sohil Mehta 
Signed-off-by: Joerg Roedel

iommu/vt-d: Add a check for 1GB page support

2018-01-17T14:02:50+00:00

Add a check to verify IOMMU 1GB page support. If the CPU supports 1GB
pages but the IOMMU does not support it then disable SVM by not
allocating PASID tables.

Signed-off-by: Sohil Mehta 
Signed-off-by: Joerg Roedel

iommu/vt-d: Clear Page Request Overflow fault bit

2017-11-03T16:51:33+00:00

Currently Page Request Overflow bit in IOMMU Fault Status register
is not cleared. Not clearing this bit would mean that any  future
page-request is going to be automatically dropped by IOMMU.

Suggested-by: Ashok Raj 
Signed-off-by: Lu Baolu 
Signed-off-by: Alex Williamson

iommu/vt-d: Use lo_hi_readq() / lo_hi_writeq()

2017-03-22T14:42:17+00:00

There is already helper functions to do 64-bit I/O on 32-bit machines or
buses, thus we don't need to reinvent the wheel.

Signed-off-by: Andy Shevchenko 
Signed-off-by: Joerg Roedel

Merge branches 'iommu/fixes', 'arm/exynos', 'arm/renesas', 'arm/smmu', 'arm/mediatek', 'arm/core', 'x86/vt-d' and 'core' into next

2017-02-10T14:13:10+00:00

iommu: Add sysfs bindings for struct iommu_device

2017-02-10T12:44:57+00:00

There is currently support for iommu sysfs bindings, but
those need to be implemented in the IOMMU drivers. Add a
more generic version of this by adding a struct device to
struct iommu_device and use that for the sysfs bindings.

Also convert the AMD and Intel IOMMU driver to make use of
it.

Signed-off-by: Joerg Roedel

iommu: Introduce new 'struct iommu_device'

2017-02-10T12:44:57+00:00

This struct represents one hardware iommu in the iommu core
code. For now it only has the iommu-ops associated with it,
but that will be extended soon.

The register/unregister interface is also added, as well as
making use of it in the Intel and AMD IOMMU drivers.

Signed-off-by: Joerg Roedel

iommu/vt-d: Fix some macros that are incorrectly specified in intel-iommu

2017-01-31T11:50:05+00:00

Some of the macros are incorrect with wrong bit-shifts resulting in picking
the incorrect invalidation granularity. Incorrect Source-ID in extended
devtlb invalidation caused device side errors.

To: Joerg Roedel 
To: David Woodhouse 
Cc: iommu@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org
Cc: CQ Tang 
Cc: Ashok Raj 

Fixes: 2f26e0a9 ("iommu/vt-d: Add basic SVM PASID support")
Signed-off-by: CQ Tang 
Signed-off-by: Ashok Raj 
Tested-by: CQ Tang 
Signed-off-by: Joerg Roedel