Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-04-01 Thread Will Deacon
On Thu, Apr 01, 2021 at 11:59:45AM +0200, Christoph Hellwig wrote: > For now I'll just pass the iommu_domain to iommu_get_dma_strict, > so that we can check for it. We can do additional cleanups on top > of that later. Sounds good to me, cheers! Will

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-04-01 Thread Christoph Hellwig
For now I'll just pass the iommu_domain to iommu_get_dma_strict, so that we can check for it. We can do additional cleanups on top of that later.

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-31 Thread Robin Murphy
On 2021-03-16 15:38, Christoph Hellwig wrote: [...] diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index f1e38526d5bd40..996dfdf9d375dd 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-31 Thread Robin Murphy
On 2021-03-31 16:32, Will Deacon wrote: On Wed, Mar 31, 2021 at 02:09:37PM +0100, Robin Murphy wrote: On 2021-03-31 12:49, Will Deacon wrote: On Tue, Mar 30, 2021 at 05:28:19PM +0100, Robin Murphy wrote: On 2021-03-30 14:58, Will Deacon wrote: On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin M

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-31 Thread Will Deacon
On Wed, Mar 31, 2021 at 02:09:37PM +0100, Robin Murphy wrote: > On 2021-03-31 12:49, Will Deacon wrote: > > On Tue, Mar 30, 2021 at 05:28:19PM +0100, Robin Murphy wrote: > > > On 2021-03-30 14:58, Will Deacon wrote: > > > > On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin Murphy wrote: > > > > > On

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-31 Thread Robin Murphy
On 2021-03-31 12:49, Will Deacon wrote: On Tue, Mar 30, 2021 at 05:28:19PM +0100, Robin Murphy wrote: On 2021-03-30 14:58, Will Deacon wrote: On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin Murphy wrote: On 2021-03-30 14:11, Will Deacon wrote: On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christo

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-31 Thread Will Deacon
On Tue, Mar 30, 2021 at 05:28:19PM +0100, Robin Murphy wrote: > On 2021-03-30 14:58, Will Deacon wrote: > > On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin Murphy wrote: > > > On 2021-03-30 14:11, Will Deacon wrote: > > > > On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christoph Hellwig wrote: > > > >

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-30 Thread Robin Murphy
On 2021-03-30 14:58, Will Deacon wrote: On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin Murphy wrote: On 2021-03-30 14:11, Will Deacon wrote: On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christoph Hellwig wrote: From: Robin Murphy Instead make the global iommu_dma_strict paramete in iommu.c can

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-30 Thread Will Deacon
On Tue, Mar 30, 2021 at 02:19:38PM +0100, Robin Murphy wrote: > On 2021-03-30 14:11, Will Deacon wrote: > > On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christoph Hellwig wrote: > > > From: Robin Murphy > > > > > > Instead make the global iommu_dma_strict paramete in iommu.c canonical by > > > expor

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-30 Thread Robin Murphy
On 2021-03-30 14:11, Will Deacon wrote: On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christoph Hellwig wrote: From: Robin Murphy Instead make the global iommu_dma_strict paramete in iommu.c canonical by exporting helpers to get and set it and use those directly in the drivers. This make sure tha

Re: [PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-30 Thread Will Deacon
On Tue, Mar 16, 2021 at 04:38:22PM +0100, Christoph Hellwig wrote: > From: Robin Murphy > > Instead make the global iommu_dma_strict paramete in iommu.c canonical by > exporting helpers to get and set it and use those directly in the drivers. > > This make sure that the iommu.strict parameter al

[PATCH 16/18] iommu: remove DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE

2021-03-16 Thread Christoph Hellwig
From: Robin Murphy Instead make the global iommu_dma_strict paramete in iommu.c canonical by exporting helpers to get and set it and use those directly in the drivers. This make sure that the iommu.strict parameter also works for the AMD and Intel IOMMU drivers on x86. As those default to lazy