| 7b9f477f5188e237f52c8a1243fd55615c63064f |
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06-Jun-2012 |
Shuah Khan <shuah.khan@hp.com> |
iommu/amd: Fix missing iommu_shutdown initialization in passthrough mode
commit f2f12b6fc032c7b1419fd6db84e2868b5f05a878 upstream.
The iommu_shutdown callback is not initialized when the AMD
IOMMU driver runs in passthrough mode. Fix that by moving
the callback initialization before the check for
passthrough mode.
Signed-off-by: Shuah Khan <shuah.khan@hp.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
/drivers/iommu/amd_iommu_init.c
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| 98e69566e80c4de231456dbf4e6735ddfeb599db |
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31-May-2012 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Cache pdev pointer to root-bridge
commit c1bf94ec1e12d76838ad485158aecf208ebd8fb9 upstream.
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.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
/drivers/iommu/amd_iommu_init.c
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| 7de473066f1512e52ea806e3c9698e5ea325b26c |
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22-Mar-2012 |
Joerg Roedel <joro@8bytes.org> |
Merge branches 'iommu/fixes', 'arm/tegra' and 'x86/amd' into next
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| ae295142d2d3989e49c6425c90d2593732a068a1 |
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16-Mar-2012 |
Gerard Snitselaar <dev@snitselaar.org> |
iommu/amd: Fix section mismatch
amd_iommu_enable_interrupts() called in amd_iommu_resume().
Signed-off-by: Gerard Snitselaar <dev@snitselaar.org>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
/drivers/iommu/amd_iommu_init.c
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| 3d9761e7a55b429ccee305a53669577b9cc20dac |
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15-Mar-2012 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Move interrupt setup code into seperate function
For interrupt remapping the enablement of the IOMMU MSI
interrupt needs to be deferred because the IOMMU itself will
be initialized before the io-apics are up and running. So
the code to setup the MSI is moved seperated from the
hardware-setup routine now.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 9ddd592a191b32f2ee6c4b6ed2bd52665c3a49f5 |
|
15-Mar-2012 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Make sure IOMMU interrupts are re-enabled on resume
Unfortunatly the interrupts for the event log and the
peripheral page-faults are only enabled at boot but not
re-enabled at resume. Fix that.
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 6e930045abe51013ee3b47eaeb5aef4bc5a35218 |
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09-Mar-2012 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Fix double free of mem-region in error-path
When ioremap_nocache fails in iommu initialization the code
calls release_mem_region immediatly. But the function is
called again when the propagates into the upper init
functions leading to a double-free. Fix that.
Reported-by: Don Dutile <ddutile@redhat.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 6b7f000eb6a0b81d7a809833edb7a457eedf8512 |
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08-Mar-2012 |
Jan Beulich <JBeulich@suse.com> |
x86/amd: iommu_set_device_table() must not be __init
This function is called from enable_iommus(), which in turn is used
from amd_iommu_resume().
Cc: stable@vger.kernel.org
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 8704a1ba4751fc5ffe2289765cb7222b3a1e20d5 |
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01-Mar-2012 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Split amd_iommu_init function
The hardware-initializtion part of the AMD IOMMU driver is
split out into a seperate function. This function can now be
called either from amd_iommu_init() itself or any other
place if the hardware needs to be ready earlier. This will
be used to implement interrupt remapping for AMD.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 1456e9d2c4667a6e9221eda27b9648fb3bcc1e8e |
|
22-Dec-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Set IOTLB invalidation timeout
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>
/drivers/iommu/amd_iommu_init.c
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| 31342b58b72b2b8480f12ffee648c8ba3297dee1 |
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22-Dec-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Remove unnecessary cache flushes in amd_iommu_resume
The caches are already flushed in enable_iommus(), so this
flush is not necessary.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
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| 52815b75682e25db45545911fd2b09ef5856e695 |
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17-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Add support for IOMMUv2 domain mode
This patch adds support for protection domains that
implement two-level paging for devices.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
|
| 5abcdba4fa535c29f736455e37229ee97e0e7f5d |
|
01-Dec-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Put IOMMUv2 capable devices in pt_domain
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>
/drivers/iommu/amd_iommu_init.c
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| 400a28a05f2cc1a311acb4ff6ac64d8402d21678 |
|
28-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Add iommuv2 flag to struct amd_iommu
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>
/drivers/iommu/amd_iommu_init.c
|
| cbc33a9085995e21f52a66380d108d64916b6787 |
|
25-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Enable GT mode when supported by IOMMU
This feature needs to be enabled before IOMMUv2 DTEs can be
set up.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
/drivers/iommu/amd_iommu_init.c
|
| 1a29ac014a68e5da8f96d5d8d142b5956eb00b7c |
|
10-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Setup PPR log when supported by IOMMU
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>
/drivers/iommu/amd_iommu_init.c
|
| 62f71abbc64d686064a4caa10a3249c26776995e |
|
10-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Get the maximum number of PASIDs supported
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>
/drivers/iommu/amd_iommu_init.c
|
| ee6c28684585a64fd79c5a56e849af58ebdc5948 |
|
09-Nov-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Convert dev_table_entry to u64
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>
/drivers/iommu/amd_iommu_init.c
|
| 403f81d8ee532c976d50a5e1051f14ec78ae8db3 |
|
14-Jun-2011 |
Joerg Roedel <joerg.roedel@amd.com> |
iommu/amd: Move missing parts to drivers/iommu
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>
/drivers/iommu/amd_iommu_init.c
|