| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
|
|
|
|
| |
At some point pci_get_bus_and_slot started to enable
interrupts. Since this function is used in the
amd_iommu_resume path it will enable interrupts on resume
which causes a warning. The fix will use a cached pointer
to the root-bridge to re-enable the IOMMU in case the BIOS
is broken.
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
To protect the command buffer from hanging when a device
does not respond to an IOTLB invalidation, set a timeout of
1s for outstanding IOTLB invalidations.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
Add infrastructure for errata-handling and handle two known
erratas in the IOMMUv2 code.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
The AMD IOMMUv2 driver needs to get the IOMMUv2 domain
associated with a particular device. This patch adds a
function to get this information.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
To send completions for PPR requests this patch adds a
function which can be used by the IOMMUv2 driver.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
This patch adds functions necessary to set and clear the
GCR3 values associated with a particular PASID in an IOMMUv2
domain.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
The functions added with this patch allow to manage the
IOMMU and the device TLBs for all devices in an IOMMUv2
domain.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
This patch adds support for protection domains that
implement two-level paging for devices.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
Add a notifer at which a module can attach to get informed
about incoming PPR faults.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
|
|
|
| |
If the device starts to use IOMMUv2 features the dma handles
need to stay valid. The only sane way to do this is to use a
identity mapping for the device and not translate it by the
iommu. This is implemented with this patch. Since this lifts
the device-isolation there is also a new kernel parameter
which allows to disable that feature.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
|
|
| |
In mixed IOMMU setups this flag inidicates whether an IOMMU
supports the v2 features or not. This patch also adds a
global flag together with a function to query that flag from
other code. The flag shows if at least one IOMMUv2 is in the
system.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
This feature needs to be enabled before IOMMUv2 DTEs can be
set up.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
| |
Allocate and enable a log buffer for peripheral page faults
when the IOMMU supports this feature.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
Read the number of PASIDs supported by each IOMMU in the
system and take the smallest number as the maximum value
supported by the IOMMU driver.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
Convert the contents of 'struct dev_table_entry' to u64 to
allow updating the DTE wit 64bit writes as required by the
spec.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
| |
|
|
|
|
|
|
| |
Conflicts:
arch/x86/include/asm/amd_iommu_types.h
arch/x86/kernel/amd_iommu.c
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
|
|
A few parts of the driver were missing in drivers/iommu.
Move them there to have the complete driver in that
directory.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
|
