> -----Original Message----- > From: Intel-gfx <intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of Abdiel > Janulgue > Sent: Monday, October 7, 2019 2:19 AM > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Cc: Auld, Matthew <matthew.auld@xxxxxxxxx> > Subject: [PATCH v2 3/5] drm/i915: Introduce > DRM_I915_GEM_MMAP_OFFSET > > This is really just an alias of mmap_gtt. Add a new CPU mmap > implementation that allows multiple fault handlers that depends on > the object's backing pages. > > Note that we multiplex mmap_gtt and mmap_offset through the same ioctl, > and use the zero extending behaviour of drm to differentiate between > them, when we inspect the flags. > > Signed-off-by: Abdiel Janulgue <abdiel.janulgue@xxxxxxxxxxxxxxx> > Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/gem/i915_gem_mman.c | 36 +++++++++++++++++-- > .../gpu/drm/i915/gem/i915_gem_object_types.h | 3 ++ > drivers/gpu/drm/i915/i915_drv.c | 2 +- > include/uapi/drm/i915_drm.h | 28 +++++++++++++++ > 4 files changed, 66 insertions(+), 3 deletions(-) How does the label 'offset' fit into this API if it's really about multiple fault handlers? Could do with a much better description here I think. Who would use this, and why, would help a lot. _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
