Re: [Intel-gfx] i915 and swiotlb_max_segment

2021-06-03 Thread Tvrtko Ursulin
Hi, On 03/06/2021 09:40, Joonas Lahtinen wrote: + Tvrtko to take a look Quoting Konrad Rzeszutek Wilk (2021-05-20 18:12:58) On Mon, May 10, 2021 at 05:25:25PM +0200, Christoph Hellwig wrote: Hi all, swiotlb_max_segment is a rather strange "API" export by swiotlb.c, and i915 is the only

Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu api

2020-11-03 Thread Tvrtko Ursulin
On 03/11/2020 02:53, Lu Baolu wrote: On 11/2/20 7:52 PM, Tvrtko Ursulin wrote: On 02/11/2020 02:00, Lu Baolu wrote: Hi Tvrtko, On 10/12/20 4:44 PM, Tvrtko Ursulin wrote: On 29/09/2020 01:11, Lu Baolu wrote: Hi Tvrtko, On 9/28/20 5:44 PM, Tvrtko Ursulin wrote: On 27/09/2020 07:34, Lu

Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu api

2020-11-02 Thread Tvrtko Ursulin
On 02/11/2020 02:00, Lu Baolu wrote: Hi Tvrtko, On 10/12/20 4:44 PM, Tvrtko Ursulin wrote: On 29/09/2020 01:11, Lu Baolu wrote: Hi Tvrtko, On 9/28/20 5:44 PM, Tvrtko Ursulin wrote: On 27/09/2020 07:34, Lu Baolu wrote: Hi, The previous post of this series could be found here. https

Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu api

2020-10-12 Thread Tvrtko Ursulin
On 29/09/2020 01:11, Lu Baolu wrote: Hi Tvrtko, On 9/28/20 5:44 PM, Tvrtko Ursulin wrote: On 27/09/2020 07:34, Lu Baolu wrote: Hi, The previous post of this series could be found here. https://lore.kernel.org/linux-iommu/20200912032200.11489-1-baolu...@linux.intel.com/ This version

Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu api

2020-09-28 Thread Tvrtko Ursulin
On 27/09/2020 07:34, Lu Baolu wrote: Hi, The previous post of this series could be found here. https://lore.kernel.org/linux-iommu/20200912032200.11489-1-baolu...@linux.intel.com/ This version introduce a new patch [4/7] to fix an issue reported here.

Re: [PATCH v3 0/6] Convert the intel iommu driver to the dma-iommu api

2020-09-15 Thread Tvrtko Ursulin
On 15/09/2020 02:47, Lu Baolu wrote: Hi Tvrtko, On 9/14/20 4:04 PM, Tvrtko Ursulin wrote: Hi, On 12/09/2020 04:21, Lu Baolu wrote: Tom Murphy has almost done all the work. His latest patch series was posted here. https://lore.kernel.org/linux-iommu/20200903201839.7327-1-murph...@tcd.ie

Re: [PATCH v3 0/6] Convert the intel iommu driver to the dma-iommu api

2020-09-14 Thread Tvrtko Ursulin
Hi, On 12/09/2020 04:21, Lu Baolu wrote: > Tom Murphy has almost done all the work. His latest patch series was > posted here. > > https://lore.kernel.org/linux-iommu/20200903201839.7327-1-murph...@tcd.ie/ > > Thanks a lot! > > This series is a follow-up with below changes: > > 1. Add a

Re: [Intel-gfx] [PATCH 0/8] Convert the intel iommu driver to the dma-iommu api

2020-09-09 Thread Tvrtko Ursulin
On 09/09/2020 10:16, Tvrtko Ursulin wrote: On 08/09/2020 23:43, Tom Murphy wrote: On Tue, 8 Sep 2020 at 16:56, Tvrtko Ursulin wrote: On 08/09/2020 16:44, Logan Gunthorpe wrote: On 2020-09-08 9:28 a.m., Tvrtko Ursulin wrote: diff --git a/drivers/gpu/drm/i915/i915_scatterlist.h b/drivers

Re: [Intel-gfx] [PATCH 0/8] Convert the intel iommu driver to the dma-iommu api

2020-09-09 Thread Tvrtko Ursulin
On 08/09/2020 23:43, Tom Murphy wrote: On Tue, 8 Sep 2020 at 16:56, Tvrtko Ursulin wrote: On 08/09/2020 16:44, Logan Gunthorpe wrote: On 2020-09-08 9:28 a.m., Tvrtko Ursulin wrote: diff --git a/drivers/gpu/drm/i915/i915_scatterlist.h b/drivers/gpu/drm/i915/i915 index b7b59328cb76

Re: [Intel-gfx] [PATCH 0/8] Convert the intel iommu driver to the dma-iommu api

2020-09-08 Thread Tvrtko Ursulin
On 08/09/2020 16:44, Logan Gunthorpe wrote: On 2020-09-08 9:28 a.m., Tvrtko Ursulin wrote: diff --git a/drivers/gpu/drm/i915/i915_scatterlist.h b/drivers/gpu/drm/i915/i915 index b7b59328cb76..9367ac801f0c 100644 --- a/drivers/gpu/drm/i915/i915_scatterlist.h +++ b/drivers/gpu/drm/i915

Re: [Intel-gfx] [PATCH 0/8] Convert the intel iommu driver to the dma-iommu api

2020-09-08 Thread Tvrtko Ursulin
Hi, On 27/08/2020 22:36, Logan Gunthorpe wrote: On 2020-08-23 6:04 p.m., Tom Murphy wrote: I have added a check for the sg_dma_len == 0 : """ } __sgt_iter(struct scatterlist *sgl, bool dma) { struct sgt_iter s = { .sgp = sgl }; + if (sgl && sg_dma_len(sgl) == 0) +

Re: [Intel-gfx] [RFC 06/17] drm: i915: fix sg_table nents vs. orig_nents misuse

2020-04-28 Thread Tvrtko Ursulin
On 28/04/2020 14:19, Marek Szyprowski wrote: The Documentation/DMA-API-HOWTO.txt states that dma_map_sg returns the numer of the created entries in the DMA address space. However the subsequent calls to dma_sync_sg_for_{device,cpu} and dma_unmap_sg must be called with the original number of

Shift overflow in qi_flush_dev_iotlb

2017-10-20 Thread Tvrtko Ursulin
Hi all, Detected by ubsan: UBSAN: Undefined behaviour in drivers/iommu/dmar.c:1345:3 shift exponent 64 is too large for 32-bit type 'int' CPU: 2 PID: 1167 Comm: perf_pmu Not tainted 4.14.0-rc5+ #532 Hardware name: LENOVO 80MX/Lenovo E31-80, BIOS DCCN34WW(V2.03) 12/01/2015 Call Trace: