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authorSebastian Ott <sebott@redhat.com>2024-01-23 19:14:14 +0100
committerDmitry Osipenko <dmitry.osipenko@collabora.com>2024-01-29 09:44:34 +0100
commit9c64e749cebd9c2d3d55261530a98bcccb83b950 (patch)
tree70bb904be25f82a7dd95973570bd7f22e0da7ce5 /drivers/gpu/drm
parentaccel/ivpu: Improve recovery and reset support (diff)
downloadlinux-9c64e749cebd9c2d3d55261530a98bcccb83b950.tar.xz
linux-9c64e749cebd9c2d3d55261530a98bcccb83b950.zip
drm/virtio: Set segment size for virtio_gpu device
Set the segment size of the virtio_gpu device to the value used by the drm helpers when allocating sg lists to fix the following complaint from DMA_API debug code: DMA-API: virtio-pci 0000:07:00.0: mapping sg segment longer than device claims to support [len=262144] [max=65536] Cc: stable@vger.kernel.org Tested-by: Zhenyu Zhang <zhenyzha@redhat.com> Acked-by: Vivek Kasireddy <vivek.kasireddy@intel.com> Signed-off-by: Sebastian Ott <sebott@redhat.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/7258a4cc-da16-5c34-a042-2a23ee396d56@redhat.com
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_drv.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
index f8e9abe647b9..9539aa28937f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -94,6 +94,7 @@ static int virtio_gpu_probe(struct virtio_device *vdev)
goto err_free;
}
+ dma_set_max_seg_size(dev->dev, dma_max_mapping_size(dev->dev) ?: UINT_MAX);
ret = virtio_gpu_init(vdev, dev);
if (ret)
goto err_free;