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* vfio: Use kconfig if XX/endif blocks instead of repeating 'depends on'Jason Gunthorpe2021-08-261-2/+4
| | | | | | | | | | | | | | This results in less kconfig wordage and a simpler understanding of the required "depends on" to create the menu structure. The next patch increases the nesting level a lot so this is a nice preparatory simplification. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Link: https://lore.kernel.org/r/20210826103912.128972-13-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio: Use select for eventfdJason Gunthorpe2021-08-261-1/+1
| | | | | | | | | | | If VFIO_VIRQFD is required then turn on eventfd automatically. The majority of kconfig users of the EVENTFD use select not depends on. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Yishai Hadas <yishaih@nvidia.com> Link: https://lore.kernel.org/r/20210826103912.128972-12-yishaih@nvidia.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* ARM: amba: Allow some ARM_AMBA users to compile with COMPILE_TESTJason Gunthorpe2021-03-161-1/+1
| | | | | | | | | | | CONFIG_VFIO_AMBA has a light use of AMBA, adding some inline fallbacks when AMBA is disabled will allow it to be compiled under COMPILE_TEST and make VFIO easier to maintain. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Message-Id: <3-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@nvidia.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio-platform: Add COMPILE_TEST to VFIO_PLATFORMJason Gunthorpe2021-03-161-1/+1
| | | | | | | | | x86 can build platform bus code too, so vfio-platform and all the platform reset implementations compile successfully on x86. Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> Message-Id: <2-v1-df057e0f92c3+91-vfio_arm_compile_test_jgg@nvidia.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* VFIO: platform: enable ARM64 buildEric Auger2015-06-221-1/+1
| | | | | | | | | This patch enables building VFIO platform and derivatives on ARM64. Signed-off-by: Eric Auger <eric.auger@linaro.org> Acked-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Tested-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* VFIO: platform: Calxeda xgmac reset moduleEric Auger2015-06-221-0/+2
| | | | | | | | | | | | | This patch introduces a module that registers and implements a basic reset function for the Calxeda xgmac device. This latter basically disables interrupts and stops DMA transfers. The reset function code is inherited from the native calxeda xgmac driver. Signed-off-by: Eric Auger <eric.auger@linaro.org> Acked-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Tested-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio: Split virqfd into a separate module for vfio bus driversAlex Williamson2015-03-171-0/+1
| | | | | | | | | | | | | | | An unintended consequence of commit 42ac9bd18d4f ("vfio: initialize the virqfd workqueue in VFIO generic code") is that the vfio module is renamed to vfio_core so that it can include both vfio and virqfd. That's a user visible change that may break module loading scritps and it imposes eventfd support as a dependency on the core vfio code, which it's really not. virqfd is intended to be provided as a service to vfio bus drivers, so instead of wrapping it into vfio.ko, we can make it a stand-alone module toggled by vfio bus drivers. This has the additional benefit of removing initialization and exit from the core vfio code. Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio: amba: add the VFIO for AMBA devices module to KconfigAntonios Motakis2015-03-161-0/+10
| | | | | | | | | | | | Enable building the VFIO AMBA driver. VFIO_AMBA depends on VFIO_PLATFORM, since it is sharing a portion of the code, and it is essentially implemented as a platform device whose resources are discovered via AMBA specific APIs in the kernel. Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com> Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Reviewed-by: Eric Auger <eric.auger@linaro.org> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio: platform: add the VFIO PLATFORM module to KconfigAntonios Motakis2015-03-161-0/+9
Enable building the VFIO PLATFORM driver that allows to use Linux platform devices with VFIO. Signed-off-by: Antonios Motakis <a.motakis@virtualopensystems.com> Signed-off-by: Baptiste Reynal <b.reynal@virtualopensystems.com> Reviewed-by: Eric Auger <eric.auger@linaro.org> Tested-by: Eric Auger <eric.auger@linaro.org> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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