Should add I was able to read/write system memory mapped by amdgpu with these patches in place on my polaris10 device (with iommu enabled of course).
________________________________________ From: amd-gfx amd-gfx-bounces@lists.freedesktop.org on behalf of Tom St Denis tom.stdenis@amd.com Sent: Monday, September 18, 2017 13:33 To: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Subject: remove ttm trace and add iova debugfs (v2)
In this respin I add some changes per feedback and make the iova entry have proper read/write methods which access pages mapped by amdgpu. So there is no need for /dev/mem or /dev/fmem anymore when reading system memory.
Patches 3/4 are unchanged and remove the TTM trace from amdgpu and from TTM itself.
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