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| author |   Ben Segal <bpsegal@us.ibm.com> | 2024-06-19 13:58:46 +0200 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2024-06-21 12:47:01 -0600 |
| commit | 4df13a6871d9e97aeeef72244e9a954c5cf11f54 (patch) | |
| tree | eedeb1d7c8cbf7b3bd1df8acac7afed11c0be661 /include/linux/vfio_pci_core.h | |
| parent | vfio/pci: Extract duplicated code into macro (diff) | |
| download | wireguard-linux-4df13a6871d9e97aeeef72244e9a954c5cf11f54.tar.xz wireguard-linux-4df13a6871d9e97aeeef72244e9a954c5cf11f54.zip | |
vfio/pci: Support 8-byte PCI loads and stores
Many PCI adapters can benefit or even require full 64bit read
and write access to their registers. In order to enable work on
user-space drivers for these devices add two new variations
vfio_pci_core_io{read|write}64 of the existing access methods
when the architecture supports 64-bit ioreads and iowrites.
Signed-off-by: Ben Segal <bpsegal@us.ibm.com>
Co-developed-by: Gerd Bayer <gbayer@linux.ibm.com>
Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
Link: https://lore.kernel.org/r/20240619115847.1344875-3-gbayer@linux.ibm.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/vfio_pci_core.h')
| -rw-r--r-- | include/linux/vfio_pci_core.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/vfio_pci_core.h b/include/linux/vfio_pci_core.h index f87067438ed4..7b45f70f84c3 100644 --- a/include/linux/vfio_pci_core.h +++ b/include/linux/vfio_pci_core.h @@ -155,5 +155,8 @@ int vfio_pci_core_ioread##size(struct vfio_pci_core_device *vdev, \ VFIO_IOREAD_DECLATION(8) VFIO_IOREAD_DECLATION(16) VFIO_IOREAD_DECLATION(32) +#ifdef ioread64 +VFIO_IOREAD_DECLATION(64) +#endif #endif /* VFIO_PCI_CORE_H */ |