Hi Jean,
On 2017/10/6 21:31, Jean-Philippe Brucker wrote:
> Hook process operations to support PASID and page table sharing with the
> SMMUv3:
>
> +
> +static void arm_smmu_process_exit(struct iommu_domain *domain,
> + struct iommu_process *process)
> +{
> + stru
On 2017/11/1 20:26, Robin Murphy wrote:
> On 01/11/17 07:46, Wei Hu (Xavier) wrote:
>>
>> On 2017/10/12 20:59, Robin Murphy wrote:
>>> On 12/10/17 13:31, Wei Hu (Xavier) wrote:
On 2017/10/1 0:10, Leon Romanovsky wrote:
> On Sat, Sep 30, 2017 at 05:28:59PM +0800, Wei Hu (Xavier) wrote:
>>
On 2017/11/7 23:48, Jason Gunthorpe wrote:
> On Tue, Nov 07, 2017 at 10:45:29AM +0800, Wei Hu (Xavier) wrote:
>
>> We reconstruct the code as below:
>> It replaces dma_alloc_coherent with __get_free_pages and
>> dma_map_single functions. So, we can vmap serveral ptrs returned by
>
On 2017/11/7 23:58, Christoph Hellwig wrote:
> On Tue, Nov 07, 2017 at 08:48:38AM -0700, Jason Gunthorpe wrote:
>> Can't you just use vmalloc and dma_map that? Other drivers follow that
>> approach..
> You can't easily due to the flushing requirements. We used to do that
> in XFS and it led to p
On 2017/11/7 14:32, Leon Romanovsky wrote:
> On Tue, Nov 07, 2017 at 10:45:29AM +0800, Wei Hu (Xavier) wrote:
>>
>> On 2017/11/1 20:26, Robin Murphy wrote:
>>> On 01/11/17 07:46, Wei Hu (Xavier) wrote:
On 2017/10/12 20:59, Robin Murphy wrote:
> On 12/10/17 13:31, Wei Hu (Xavier) wrote:
>
Hi Jean,
+static struct iommu_process *
+iommu_process_alloc(struct iommu_domain *domain, struct task_struct
+*task) {
+ int err;
+ int pasid;
+ struct iommu_process *process;
+
+ if (WARN_ON(!domain->ops->process_alloc || !domain->ops->process_free))
+ retur
Hi Liubo,
On 08/11/17 01:21, Bob Liu wrote:
> Hi Jean,
>
> On 2017/10/12 20:55, Jean-Philippe Brucker wrote:
>> On 12/10/17 13:05, Yisheng Xie wrote:
>> [...]
>> * An iommu_process can be bound to multiple domains, and a domain can
>> have
>> multiple iommu_process.
> when bind
