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Add missing spin_lock initialization in
amd_iommu_bind_pasid() function and make lockdep happy
again.
Cc: stable@vger.kernel.org # >= v3.3
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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A few sparse warnings fire in drivers/iommu/amd_iommu_init.c.
Fix most of them with this patch. Also fix the sparse
warnings in drivers/iommu/irq_remapping.c while at it.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Add a check to the init-path of the AMD IOMMUv2 driver if
the hardware is available in the system. Only allocate all
the resources if it is really available.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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This call-back is invoked when the task that is bound to a
pasid is about to exit. The driver can use it to shutdown
all context related to that context in a safe way.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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This callback can be used to change the PRI response code
sent to a device when a PPR fault fails.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Since pages are not pinned anymore we need notifications
when the VMM changes the page-tables. Use mmu_notifiers for
that.
Also use the task_exit notifier from the profiling subsystem
to shutdown all contexts related to this task.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Register the notifier for PPR faults and handle them as
necessary.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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This patch adds routines to bind a specific process
address-space to a given PASID.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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This patch adds the amd_iommu_init_device() and
amd_iommu_free_device() functions which make a device and
the IOMMU ready for IOMMUv2 usage.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Add a Kconfig option for the optional driver. Since it is
optional it can be compiled as a module and will only be
loaded when required by another driver.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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