[PATCH] drm/amdgpu: limit DMA size to PAGE_SIZE for scatter-gather buffers

Code is expecing to observe the same number of buffers returned from dma_map_sg() function compared to sg_alloc_table_from_pages(). This doesn't hold true universally especially for systems with IOMMU. IOMMU driver tries to combine buffers into a single DMA address as much as it can. The right thi

Re: [PATCH] drm/amdgpu: limit DMA size to PAGE_SIZE for scatter-gather buffers

Am 10.04.2018 um 20:25 schrieb Sinan Kaya: Code is expecing to observe the same number of buffers returned from dma_map_sg() function compared to sg_alloc_table_from_pages(). This doesn't hold true universally especially for systems with IOMMU. IOMMU driver tries to combine buffers into a single