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path: root/drivers/gpu/drm/msm/msm_gem.c
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Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
-rw-r--r--drivers/gpu/drm/msm/msm_gem.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 51a95da694d8..c8886d3071fa 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -391,6 +391,10 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
struct msm_gem_object *msm_obj = to_msm_bo(obj);
struct msm_gem_vma *vma;
struct page **pages;
+ int prot = IOMMU_READ;
+
+ if (!(msm_obj->flags & MSM_BO_GPU_READONLY))
+ prot |= IOMMU_WRITE;
WARN_ON(!mutex_is_locked(&msm_obj->lock));
@@ -405,8 +409,8 @@ static int msm_gem_pin_iova(struct drm_gem_object *obj,
if (IS_ERR(pages))
return PTR_ERR(pages);
- return msm_gem_map_vma(aspace, vma, msm_obj->sgt,
- obj->size >> PAGE_SHIFT);
+ return msm_gem_map_vma(aspace, vma, prot,
+ msm_obj->sgt, obj->size >> PAGE_SHIFT);
}
/* get iova and pin it. Should have a matching put */