From: Rob Bradford <rob@xxxxxxxxxxxxxxx> The aim is that this is functionally equivalent to using the I915_GEM_MMAP ioctl. v2: Add aperture check limit, limit to SNB+ and improve error handling. v3 (anderco): Map without using the GTT. Signed-off-by: Rob Bradford <rob@xxxxxxxxxxxxxxx> Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx> --- drivers/gpu/drm/i915/i915_gem_dmabuf.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c index 580aa42..2d31fca 100644 --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c @@ -193,7 +193,24 @@ static void i915_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_n static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct *vma) { - return -EINVAL; + struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf); + struct drm_device *dev = obj->base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + int ret; + + if (INTEL_INFO(dev)->gen < 6) + return -EINVAL; + + ret = i915_mutex_lock_interruptible(dev); + if (ret) + return ret; + + ret = obj->base.filp->f_op->mmap(obj->base.filp, vma); + fput(vma->vm_file); + vma->vm_file = get_file(obj->base.filp); + + mutex_unlock(&dev->struct_mutex); + return ret; } static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, size_t start, size_t length, enum dma_data_direction direction) -- 1.8.3.2 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx