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| author | Rob Clark <robdclark@gmail.com> | 2019-01-09 14:25:05 -0500 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2019-01-24 15:36:33 -0500 |
| commit | bbc2cd07c5100514f25ac6e09d2a94521b46b35b (patch) | |
| tree | ebb7f2e3dc56a86060f08fc44e030f973a8f2e9a /drivers/gpu/drm/msm/msm_gem.c | |
| parent | 895ad6b0ccf71ec1f8d5bc4d9f15b525feb160a8 (diff) | |
drm/msm: honor GPU_READONLY flag
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 8 |
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 */ |