diff options
| author | Ankit Agrawal <ankita@nvidia.com> | 2024-02-20 17:20:53 +0530 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2024-02-22 12:20:20 -0700 |
| commit | 4de676d494cd8fb2b4c65e58c19ebbdb36673957 (patch) | |
| tree | 2fd965f4b13d5de81aed87a62fd9fa14a6fd49f2 /drivers/vfio | |
| parent | 77943f4d2de0c5fa284013b97967e6c271c04310 (diff) | |
| download | lwn-4de676d494cd8fb2b4c65e58c19ebbdb36673957.tar.gz lwn-4de676d494cd8fb2b4c65e58c19ebbdb36673957.zip | |
vfio/pci: rename and export do_io_rw()
do_io_rw() is used to read/write to the device MMIO. The grace hopper
VFIO PCI variant driver require this functionality to read/write to
its memory.
Rename this as vfio_pci_core functions and export as GPL.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Ankit Agrawal <ankita@nvidia.com>
Link: https://lore.kernel.org/r/20240220115055.23546-2-ankita@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_rdwr.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/vfio/pci/vfio_pci_rdwr.c b/drivers/vfio/pci/vfio_pci_rdwr.c index 07fea08ea8a2..03b8f7ada1ac 100644 --- a/drivers/vfio/pci/vfio_pci_rdwr.c +++ b/drivers/vfio/pci/vfio_pci_rdwr.c @@ -96,10 +96,10 @@ VFIO_IOREAD(32) * reads with -1. This is intended for handling MSI-X vector tables and * leftover space for ROM BARs. */ -static ssize_t do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem, - void __iomem *io, char __user *buf, - loff_t off, size_t count, size_t x_start, - size_t x_end, bool iswrite) +ssize_t vfio_pci_core_do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem, + void __iomem *io, char __user *buf, + loff_t off, size_t count, size_t x_start, + size_t x_end, bool iswrite) { ssize_t done = 0; int ret; @@ -201,6 +201,7 @@ static ssize_t do_io_rw(struct vfio_pci_core_device *vdev, bool test_mem, return done; } +EXPORT_SYMBOL_GPL(vfio_pci_core_do_io_rw); int vfio_pci_core_setup_barmap(struct vfio_pci_core_device *vdev, int bar) { @@ -279,8 +280,8 @@ ssize_t vfio_pci_bar_rw(struct vfio_pci_core_device *vdev, char __user *buf, x_end = vdev->msix_offset + vdev->msix_size; } - done = do_io_rw(vdev, res->flags & IORESOURCE_MEM, io, buf, pos, - count, x_start, x_end, iswrite); + done = vfio_pci_core_do_io_rw(vdev, res->flags & IORESOURCE_MEM, io, buf, pos, + count, x_start, x_end, iswrite); if (done >= 0) *ppos += done; @@ -348,7 +349,8 @@ ssize_t vfio_pci_vga_rw(struct vfio_pci_core_device *vdev, char __user *buf, * probing, so we don't currently worry about access in relation * to the memory enable bit in the command register. */ - done = do_io_rw(vdev, false, iomem, buf, off, count, 0, 0, iswrite); + done = vfio_pci_core_do_io_rw(vdev, false, iomem, buf, off, count, + 0, 0, iswrite); vga_put(vdev->pdev, rsrc); |