6.1-stable review patch. If anyone has any objections, please let me know.
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From: Sebastian Ott sebott@redhat.com
commit 9c64e749cebd9c2d3d55261530a98bcccb83b950 upstream.
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-a042-2a23ee... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/virtio/virtgpu_drv.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c @@ -93,6 +93,7 @@ static int virtio_gpu_probe(struct virti 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;