Re: [PATCH v2 3/5] drm/msm: Stop using iommu_present()

2022-06-15 Thread Abhinav Kumar
On 5/4/2022 5:16 PM, Dmitry Baryshkov wrote: Even if some IOMMU has registered itself on the platform "bus", that doesn't necessarily mean it provides translation for the device we care about. Replace iommu_present() with a more appropriate check. On Qualcomm platforms the IOMMU can be specif

[PATCH v2 3/5] drm/msm: Stop using iommu_present()

2022-05-04 Thread Dmitry Baryshkov
Even if some IOMMU has registered itself on the platform "bus", that doesn't necessarily mean it provides translation for the device we care about. Replace iommu_present() with a more appropriate check. On Qualcomm platforms the IOMMU can be specified either for the MDP/DPU device or for its paren