[RESEND PATCH v8 04/11] bus: platform, amba, fsl-mc, PCI: Add device DMA ownership management

2022-04-17 Thread Lu Baolu
The devices on platform/amba/fsl-mc/PCI buses could be bound to drivers with the device DMA managed by kernel drivers or user-space applications. Unfortunately, multiple devices may be placed in the same IOMMU group because they cannot be isolated from each other. The DMA on these devices must

Re: [PATCH v8 04/11] bus: platform,amba,fsl-mc,PCI: Add device DMA ownership management

2022-03-08 Thread Robin Murphy
On 2022-03-08 05:44, Lu Baolu wrote: The devices on platform/amba/fsl-mc/PCI buses could be bound to drivers with the device DMA managed by kernel drivers or user-space applications. Unfortunately, multiple devices may be placed in the same IOMMU group because they cannot be isolated from each

[PATCH v8 04/11] bus: platform, amba, fsl-mc, PCI: Add device DMA ownership management

2022-03-07 Thread Lu Baolu
The devices on platform/amba/fsl-mc/PCI buses could be bound to drivers with the device DMA managed by kernel drivers or user-space applications. Unfortunately, multiple devices may be placed in the same IOMMU group because they cannot be isolated from each other. The DMA on these devices must