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2022-07-01drm/doc: add rfc section for small BAR uapiMatthew Auld1-0/+189
Add an entry for the new uapi needed for small BAR on DG2+. v2: - Some spelling fixes and other small tweaks. (Akeem & Thomas) - Rework error capture interactions, including no longer needing NEEDS_CPU_ACCESS for objects marked for capture. (Thomas) - Add probed_cpu_visible_size. (Lionel) v3: - Drop the vma query for now. - Add unallocated_cpu_visible_size as part of the region query. - Improve the docs some more, including documenting the expected behaviour on older kernels, since this came up in some offline discussion. v4: - Various improvements all over. (Tvrtko) v5: - Include newer integrated platforms when applying the non-recoverable context and error capture restriction. (Thomas) Mesa: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16739 Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Cc: Jon Bloomfield <jon.bloomfield@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Kenneth Graunke <kenneth@whitecape.org> Cc: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Cc: mesa-dev@lists.freedesktop.org Acked-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com> Acked-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Acked-by: Jordan Justen <jordan.l.justen@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220629174350.384910-1-matthew.auld@intel.com