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16  * This is mainly used to communicate information back-and-forth
77  * amd_iommu_set_invalid_ppr_cb() - Register a call-back for failed
79  * @pdev: The PCI device the call-back should be registered for
80  * @cb: The call-back function
82  * The IOMMUv2 driver invokes this call-back when it is unable to
85  * the call-back are:
87  * - AMD_IOMMU_INV_PRI_RSP_SUCCESS - Send SUCCESS back to the device
88  * - AMD_IOMMU_INV_PRI_RSP_INVALID - Send INVALID back to the device
89  * - AMD_IOMMU_INV_PRI_RSP_FAIL    - Send Failure back to the device,
141  * amd_iommu_set_invalidate_ctx_cb() - Register a call-back for invalidating
142  *				       a pasid context. This call-back is
148  * @pdev: The PCI device the call-back should be registered for
149  * @cb: The call-back function