diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_iommu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_iommu.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c index 6583fadc6e5b..b23d33622f37 100644 --- a/drivers/gpu/drm/msm/msm_iommu.c +++ b/drivers/gpu/drm/msm/msm_iommu.c @@ -38,14 +38,23 @@ static int msm_iommu_attach(struct msm_mmu *mmu, const char * const *names, int cnt) { struct msm_iommu *iommu = to_msm_iommu(mmu); - return iommu_attach_device(iommu->domain, mmu->dev); + int ret; + + pm_runtime_get_sync(mmu->dev); + ret = iommu_attach_device(iommu->domain, mmu->dev); + pm_runtime_put_sync(mmu->dev); + + return ret; } static void msm_iommu_detach(struct msm_mmu *mmu, const char * const *names, int cnt) { struct msm_iommu *iommu = to_msm_iommu(mmu); + + pm_runtime_get_sync(mmu->dev); iommu_detach_device(iommu->domain, mmu->dev); + pm_runtime_put_sync(mmu->dev); } static int msm_iommu_map(struct msm_mmu *mmu, uint64_t iova, @@ -54,7 +63,9 @@ static int msm_iommu_map(struct msm_mmu *mmu, uint64_t iova, struct msm_iommu *iommu = to_msm_iommu(mmu); size_t ret; +// pm_runtime_get_sync(mmu->dev); ret = iommu_map_sg(iommu->domain, iova, sgt->sgl, sgt->nents, prot); +// pm_runtime_put_sync(mmu->dev); WARN_ON(ret < 0); return (ret == len) ? 0 : -EINVAL; @@ -65,7 +76,9 @@ static int msm_iommu_unmap(struct msm_mmu *mmu, uint64_t iova, { struct msm_iommu *iommu = to_msm_iommu(mmu); + pm_runtime_get_sync(mmu->dev); iommu_unmap(iommu->domain, iova, len); + pm_runtime_put_sync(mmu->dev); return 0; } |