bbe1e78ae2
With WERROR=y, which is default, clang is not happy:
.../amd/pasid.c:168:3: error: call to undeclared function 'mmu_notifier_unregister'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
.../amd/pasid.c:191:8: error: call to undeclared function 'mmu_notifier_register'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
2 errors generated.
Select missed dependency.
Fixes: a5a91e5484 ("iommu/amd: Add SVA domain support")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/20240429111707.2795194-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
1.3 KiB
SPDX-License-Identifier: GPL-2.0-only
AMD IOMMU support
config AMD_IOMMU bool "AMD IOMMU support" select SWIOTLB select PCI_MSI select PCI_ATS select PCI_PRI select PCI_PASID select MMU_NOTIFIER select IOMMU_API select IOMMU_IOVA select IOMMU_IO_PGTABLE select IOMMU_SVA select IOMMU_IOPF select IOMMUFD_DRIVER if IOMMUFD depends on X86_64 && PCI && ACPI && HAVE_CMPXCHG_DOUBLE help With this option you can enable support for AMD IOMMU hardware in your system. An IOMMU is a hardware component which provides remapping of DMA memory accesses from devices. With an AMD IOMMU you can isolate the DMA memory of different devices and protect the system from misbehaving device drivers or hardware.
You can find out if your system has an AMD IOMMU if you look into
your BIOS for an option to enable it or if you have an IVRS ACPI
table.
config AMD_IOMMU_DEBUGFS bool "Enable AMD IOMMU internals in DebugFS" depends on AMD_IOMMU && IOMMU_DEBUGFS help !!!WARNING!!! !!!WARNING!!! !!!WARNING!!! !!!WARNING!!!
DO NOT ENABLE THIS OPTION UNLESS YOU REALLY, -REALLY- KNOW WHAT YOU ARE DOING!!!
Exposes AMD IOMMU device internals in DebugFS.
This option is -NOT- intended for production environments, and should
not generally be enabled.