Re: [PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-09-03 Thread Alexey Kardashevskiy
On 02/09/2020 16:11, Leonardo Bras wrote: On Mon, 2020-08-31 at 14:35 +1000, Alexey Kardashevskiy wrote: On 29/08/2020 04:36, Leonardo Bras wrote: On Mon, 2020-08-24 at 15:17 +1000, Alexey Kardashevskiy wrote: On 18/08/2020 09:40, Leonardo Bras wrote: As of today, if the biggest DDW that

Re: [PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-09-02 Thread Leonardo Bras
On Mon, 2020-08-31 at 14:35 +1000, Alexey Kardashevskiy wrote: > > On 29/08/2020 04:36, Leonardo Bras wrote: > > On Mon, 2020-08-24 at 15:17 +1000, Alexey Kardashevskiy wrote: > > > On 18/08/2020 09:40, Leonardo Bras wrote: > > > > As of today, if the biggest DDW that can be created can't map the

Re: [PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-08-30 Thread Alexey Kardashevskiy
On 29/08/2020 04:36, Leonardo Bras wrote: > On Mon, 2020-08-24 at 15:17 +1000, Alexey Kardashevskiy wrote: >> >> On 18/08/2020 09:40, Leonardo Bras wrote: >>> As of today, if the biggest DDW that can be created can't map the whole >>> partition, it's creation is skipped and the default DMA

Re: [PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-08-28 Thread Leonardo Bras
On Mon, 2020-08-24 at 15:17 +1000, Alexey Kardashevskiy wrote: > > On 18/08/2020 09:40, Leonardo Bras wrote: > > As of today, if the biggest DDW that can be created can't map the whole > > partition, it's creation is skipped and the default DMA window > > "ibm,dma-window" is used instead. > > >

Re: [PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-08-23 Thread Alexey Kardashevskiy
On 18/08/2020 09:40, Leonardo Bras wrote: > As of today, if the biggest DDW that can be created can't map the whole > partition, it's creation is skipped and the default DMA window > "ibm,dma-window" is used instead. > > DDW is 16x bigger than the default DMA window, 16x only under very

[PATCH v1 09/10] powerpc/pseries/iommu: Make use of DDW even if it does not map the partition

2020-08-17 Thread Leonardo Bras
As of today, if the biggest DDW that can be created can't map the whole partition, it's creation is skipped and the default DMA window "ibm,dma-window" is used instead. DDW is 16x bigger than the default DMA window, having the same amount of pages, but increasing the page size to 64k. Besides