[Intel-gfx] [PATCH v2 0/2] drm/i915: Introduce GEM proxy

[Tina Zhang]

This patch-set introduces the GEM proxy which is a kind of GEM whose
backing physical memory is pinned and produced by guest VM and is
used by host as read only.

The patch is separated from the "Dma-buf support for Gvt-g"
  patch-set. (Joonas)

v2:
- return -ENXIO when pin and map pages of GEM proxy to kernel space.
  (Chris)
- update the patch description and subject to just mention objects w/o
  backing storage, instead of "GEM proxy". (Joonas)

Here are the histories of this patch in "Dma-buf support for Gvt-g"
patch-set:

v14:
- return -ENXIO when gem proxy object is banned by ioctl.
  (Chris) (Daniel)

v13:
- add comments to GEM proxy. (Chris)
- don't ban GEM proxy in i915_gem_sw_finish_ioctl. (Chris)
- check GEM proxy bar after finishing i915_gem_object_wait. (Chris)
- remove GEM proxy bar in i915_gem_madvise_ioctl.

v6:
- add gem proxy barrier in the following ioctls. (Chris)
  i915_gem_set_caching_ioctl
  i915_gem_set_domain_ioctl
  i915_gem_sw_finish_ioctl
  i915_gem_set_tiling_ioctl
  i915_gem_madvise_ioctl


Tina Zhang (2):
  drm/i915: Introduce GEM proxy
  drm/i915: Object w/o backing stroage is banned by -ENXIO

 drivers/gpu/drm/i915/i915_gem.c        | 27 +++++++++++++++++++++++++--
 drivers/gpu/drm/i915/i915_gem_object.h | 11 +++++++++--
 drivers/gpu/drm/i915/i915_gem_tiling.c |  8 ++++++++
 3 files changed, 42 insertions(+), 4 deletions(-)

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2.7.4