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