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vfio/nvgrace: Convert to the get_region_info op

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Change the signature of nvgrace_gpu_ioctl_get_region_info()

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Ankit Agrawal <ankita@nvidia.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/4-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
This commit is contained in:
Jason Gunthorpe
2025-11-07 13:41:20 -04:00
committed by Alex Williamson
parent c044eefa47
commit 5ac7206474
1 changed files with 6 additions and 9 deletions
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15
drivers/vfio/pci/nvgrace-gpu/main.c
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@@ -205,9 +205,9 @@ static int nvgrace_gpu_mmap(struct vfio_device *core_vdev,
return 0;
}
static long
static int
nvgrace_gpu_ioctl_get_region_info(struct vfio_device *core_vdev,
unsigned long arg)
struct vfio_region_info __user *arg)
{
struct nvgrace_gpu_pci_core_device *nvdev =
container_of(core_vdev, struct nvgrace_gpu_pci_core_device,
@@ -220,7 +220,7 @@ nvgrace_gpu_ioctl_get_region_info(struct vfio_device *core_vdev,
u32 size;
int ret;
if (copy_from_user(&info, (void __user *)arg, minsz))
if (copy_from_user(&info, arg, minsz))
return -EFAULT;
if (info.argsz < minsz)
@@ -232,8 +232,7 @@ nvgrace_gpu_ioctl_get_region_info(struct vfio_device *core_vdev,
*/
memregion = nvgrace_gpu_memregion(info.index, nvdev);
if (!memregion)
return vfio_pci_core_ioctl(core_vdev,
VFIO_DEVICE_GET_REGION_INFO, arg);
return vfio_pci_ioctl_get_region_info(core_vdev, arg);
size = struct_size(sparse, areas, 1);
@@ -285,16 +284,13 @@ nvgrace_gpu_ioctl_get_region_info(struct vfio_device *core_vdev,
}
kfree(caps.buf);
}
return copy_to_user((void __user *)arg, &info, minsz) ?
-EFAULT : 0;
return copy_to_user(arg, &info, minsz) ? -EFAULT : 0;
}
static long nvgrace_gpu_ioctl(struct vfio_device *core_vdev,
unsigned int cmd, unsigned long arg)
{
switch (cmd) {
case VFIO_DEVICE_GET_REGION_INFO:
return nvgrace_gpu_ioctl_get_region_info(core_vdev, arg);
case VFIO_DEVICE_IOEVENTFD:
return -ENOTTY;
case VFIO_DEVICE_RESET:
@@ -690,6 +686,7 @@ static const struct vfio_device_ops nvgrace_gpu_pci_ops = {
.open_device = nvgrace_gpu_open_device,
.close_device = nvgrace_gpu_close_device,
.ioctl = nvgrace_gpu_ioctl,
.get_region_info = nvgrace_gpu_ioctl_get_region_info,
.device_feature = vfio_pci_core_ioctl_feature,
.read = nvgrace_gpu_read,
.write = nvgrace_gpu_write,