On Wed, Oct 30, 2024 at 02:34:28PM -0700, Nicolin Chen wrote: > The following patch will add a new vIOMMU allocator that will require this > _iommufd_object_alloc to be sharable with IOMMU drivers (and iommufd too). > > Add a new driver.c file that will be built with CONFIG_IOMMUFD_DRIVER_CORE > selected by CONFIG_IOMMUFD, and put the CONFIG_DRIVER under that remaining > to be selectable for drivers to build the existing iova_bitmap.c file. > > Suggested-by: Jason Gunthorpe <jgg@xxxxxxxxxx> > Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx> > --- > drivers/iommu/iommufd/Kconfig | 5 ++++ > drivers/iommu/iommufd/Makefile | 5 +++- > drivers/iommu/iommufd/iommufd_private.h | 4 --- > include/linux/iommufd.h | 10 +++++++ > drivers/iommu/iommufd/driver.c | 40 +++++++++++++++++++++++++ > drivers/iommu/iommufd/main.c | 32 -------------------- > 6 files changed, 59 insertions(+), 37 deletions(-) > create mode 100644 drivers/iommu/iommufd/driver.c > > diff --git a/drivers/iommu/iommufd/Kconfig b/drivers/iommu/iommufd/Kconfig > index 76656fe0470d..83addbe2ff7b 100644 > --- a/drivers/iommu/iommufd/Kconfig > +++ b/drivers/iommu/iommufd/Kconfig > @@ -1,9 +1,14 @@ > # SPDX-License-Identifier: GPL-2.0-only > +config IOMMUFD_DRIVER_CORE > + tristate > + default IOMMUFD_DRIVER || IOMMUFD > + > config IOMMUFD > tristate "IOMMU Userspace API" > select INTERVAL_TREE > select INTERVAL_TREE_SPAN_ITER > select IOMMU_API > + select IOMMUFD_DRIVER_CORE Should drop the select Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx> Jason
