Re: [PATCH 17/18] dma-iommu: implement ->alloc_noncoherent

2020-09-26 Thread Tomasz Figa
On Sat, Sep 26, 2020 at 4:14 PM Christoph Hellwig wrote: > > On Fri, Sep 25, 2020 at 06:46:22PM +, Tomasz Figa wrote: > > > +static void *iommu_dma_alloc_noncoherent(struct device *dev, size_t size, > > > + dma_addr_t *handle, enum dma_data_direction dir, gfp_t gfp) > > > +{ > > > +

Re: [PATCH 17/18] dma-iommu: implement ->alloc_noncoherent

2020-09-26 Thread Christoph Hellwig
On Fri, Sep 25, 2020 at 06:46:22PM +, Tomasz Figa wrote: > > +static void *iommu_dma_alloc_noncoherent(struct device *dev, size_t size, > > + dma_addr_t *handle, enum dma_data_direction dir, gfp_t gfp) > > +{ > > + if (!gfpflags_allow_blocking(gfp)) { > > + struct page

Re: [PATCH 17/18] dma-iommu: implement ->alloc_noncoherent

2020-09-25 Thread Tomasz Figa
Hi Christoph, On Tue, Sep 15, 2020 at 05:51:21PM +0200, Christoph Hellwig wrote: > Implement the alloc_noncoherent method to provide memory that is neither > coherent not contiguous. > > Signed-off-by: Christoph Hellwig > --- > drivers/iommu/dma-iommu.c | 41