drm: add mmap function to prime helpers
This adds to call low-level mmap() from prime helpers. Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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@ -245,7 +245,13 @@ static void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf,
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static int drm_gem_dmabuf_mmap(struct dma_buf *dma_buf,
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struct vm_area_struct *vma)
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{
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return -EINVAL;
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struct drm_gem_object *obj = dma_buf->priv;
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struct drm_device *dev = obj->dev;
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if (!dev->driver->gem_prime_mmap)
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return -ENOSYS;
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return dev->driver->gem_prime_mmap(obj, vma);
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}
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static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
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@ -937,6 +937,8 @@ struct drm_driver {
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struct sg_table *sgt);
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void *(*gem_prime_vmap)(struct drm_gem_object *obj);
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void (*gem_prime_vunmap)(struct drm_gem_object *obj, void *vaddr);
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int (*gem_prime_mmap)(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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/* vga arb irq handler */
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void (*vgaarb_irq)(struct drm_device *dev, bool state);
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