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A quiet week: one fix for CMA dma-buf pages accounting, and one to

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virtio to set the segment size of the virtio_gpu device.
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Merge tag 'drm-misc-fixes-2024-02-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A quiet week: one fix for CMA dma-buf pages accounting, and one to
virtio to set the segment size of the virtio_gpu device.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/obnofpccz73c3uiqfyipxmjta5fgm4cle55dmtnissgtgxfgv7@22o7kb62efri
This commit is contained in:
Dave Airlie 2024-02-02 12:13:01 +10:00
commit 419d8a9375
2 changed files with 4 additions and 4 deletions
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7
drivers/dma-buf/heaps/cma_heap.c
View File

@ -168,10 +168,7 @@ static vm_fault_t cma_heap_vm_fault(struct vm_fault *vmf)
if (vmf->pgoff > buffer->pagecount)
return VM_FAULT_SIGBUS;
vmf->page = buffer->pages[vmf->pgoff];
get_page(vmf->page);
return 0;
return vmf_insert_pfn(vma, vmf->address, page_to_pfn(buffer->pages[vmf->pgoff]));
}
static const struct vm_operations_struct dma_heap_vm_ops = {
@ -185,6 +182,8 @@ static int cma_heap_mmap(struct dma_buf *dmabuf, struct vm_area_struct *vma)
if ((vma->vm_flags & (VM_SHARED | VM_MAYSHARE)) == 0)
return -EINVAL;
vm_flags_set(vma, VM_IO | VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP);
vma->vm_ops = &dma_heap_vm_ops;
vma->vm_private_data = buffer;

1
drivers/gpu/drm/virtio/virtgpu_drv.c
View File

@ -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;