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drm/msm: Add msm_gem_get_and_pin_iova()

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Add a new function to get and pin the iova memory in one
step (basically renaming the old msm_gem_get_iova function)
and switch msm_gem_get_iova() to only allocate an iova but
not map it in the IOMMU. This is only currently used by
msm_ioctl_gem_info() since all other users of of the iova
expect that the memory be immediately available.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jordan Crouse
2018-11-07 15:35:50 -07:00
committed by Rob Clark
parent 575f048550
commit 9fe041f6fd
12 changed files with 36 additions and 15 deletions
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2
drivers/gpu/drm/msm/msm_fbdev.c
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@@ -104,7 +104,7 @@ static int msm_fbdev_create(struct drm_fb_helper *helper,
* in panic (ie. lock-safe, etc) we could avoid pinning the
* buffer now:
*/
ret = msm_gem_get_iova(bo, priv->kms->aspace, &paddr);
ret = msm_gem_get_and_pin_iova(bo, priv->kms->aspace, &paddr);
if (ret) {
DRM_DEV_ERROR(dev->dev, "failed to get buffer obj iova: %d\n", ret);
goto fail_unlock;