[PATCH 0/7] RFCv3 VGEM Prime (dma-buf)

Ben Widawsky ben at bwidawsk.net
Wed Feb 22 11:29:12 PST 2012

I'm going to be off doing other things for the next couple of weeks, so
I'm dropping these now to give it a nice soak while I'm gone.

Dave/Daniel: if you could look these over and tell me if the general
direction seems good.

Ajax: anything you missing in the basic vgem stuff?

Since the last time:
Squashed down the original vgem patches
Use dumb_bo functions/ditched VGEM ioctls
Hooked up prime import and export support

On the prime side, the major difference from what Dave has done before
is a per driver hash of the previously used dma bufs/gem objects.

The prime stuff is of particularly low quality at this point, like I
said, trying to get something out before I disappear for a while. So
please don't yell at me about obvious bugs :). After getting feedback on
what I have now, I will incorporate Dave's earlier work on i915 prime,
and get some better test cases going.

On my todos:
Ascii chart of dmabuf/drm object life cycle
hashsify the per file list
i915 per driver hash
vgem-i915 and vice versa test cases

As before, the very basic tools are here:

Once we get cpu maps that I think Daniel wants to work on, I can even do
better tests with just VGEM.

Adam Jackson (1):
  drm/vgem: virtual GEM provider

Ben Widawsky (5):
  drm: per device prime dma buf hash
  drm/vgem: prime export support
  drm/vgem: import support
  drm: actually enable PRIME

Dave Airlie (1):
  drm: base prime support

 drivers/gpu/drm/Kconfig             |    9 +
 drivers/gpu/drm/Makefile            |    3 +-
 drivers/gpu/drm/drm_drv.c           |    3 +
 drivers/gpu/drm/drm_gem.c           |    4 +
 drivers/gpu/drm/drm_prime.c         |  172 +++++++++++++++
 drivers/gpu/drm/drm_stub.c          |    8 +
 drivers/gpu/drm/vgem/Makefile       |    4 +
 drivers/gpu/drm/vgem/vgem_dma_buf.c |  248 ++++++++++++++++++++++
 drivers/gpu/drm/vgem/vgem_drv.c     |  389 +++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/vgem/vgem_drv.h     |   61 ++++++
 include/drm/drm.h                   |   10 +-
 include/drm/drmP.h                  |   55 +++++
 12 files changed, 964 insertions(+), 2 deletions(-)
 create mode 100644 drivers/gpu/drm/drm_prime.c
 create mode 100644 drivers/gpu/drm/vgem/Makefile
 create mode 100644 drivers/gpu/drm/vgem/vgem_dma_buf.c
 create mode 100644 drivers/gpu/drm/vgem/vgem_drv.c
 create mode 100644 drivers/gpu/drm/vgem/vgem_drv.h


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