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| author | Rob Clark <robdclark@gmail.com> | 2014-07-01 14:49:55 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2014-08-04 11:55:29 -0400 |
| commit | 1c4997fe4157c4d715cead67fca1a5085991ac0f (patch) | |
| tree | 6920f4d4f7175903138dca628ff93fa52b36d2ef | |
| parent | 036c17082adae0014c53dc2ff9e813abf13bc3b8 (diff) | |
| download | blackbird-op-linux-1c4997fe4157c4d715cead67fca1a5085991ac0f.tar.gz blackbird-op-linux-1c4997fe4157c4d715cead67fca1a5085991ac0f.zip | |
drm/msm: no mmu is only error if not using vram carveout
Signed-off-by: Rob Clark <robdclark@gmail.com>
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 713722b0ba78..4b1b82adabde 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -278,24 +278,23 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, uint32_t *iova) { struct msm_gem_object *msm_obj = to_msm_bo(obj); - struct drm_device *dev = obj->dev; int ret = 0; if (!msm_obj->domain[id].iova) { struct msm_drm_private *priv = obj->dev->dev_private; - struct msm_mmu *mmu = priv->mmus[id]; struct page **pages = get_pages(obj); - if (!mmu) { - dev_err(dev->dev, "null MMU pointer\n"); - return -EINVAL; - } - if (IS_ERR(pages)) return PTR_ERR(pages); if (iommu_present(&platform_bus_type)) { - uint32_t offset = (uint32_t)mmap_offset(obj); + struct msm_mmu *mmu = priv->mmus[id]; + uint32_t offset; + + if (WARN_ON(!mmu)) + return -EINVAL; + + offset = (uint32_t)mmap_offset(obj); ret = mmu->funcs->map(mmu, offset, msm_obj->sgt, obj->size, IOMMU_READ | IOMMU_WRITE); msm_obj->domain[id].iova = offset; |
