[Intel-gfx] [PATCH 00/13] [REPOST] Broadwell HW semaphores

[Ben Widawsky]

These are the remaining patches for enabling HW semaphores on Broadwell.
The patches are rebased against the latest drm-intel-nightly, and the
only other intentional modifications were those requested by Chris. The
functionality they provide is the same as before. Unfortunately, I will
not have the ability to test these until I return from FOSDEM - however
it sounds like we have some reviewer time now.

Since last time:
I had a couple of rebase conflicts, and build errors as a result of
moving things (like the invention module parameter structure). They were
trivial, so the only concern there would be if my 'test-every-commit'
script blew up. It also should have all the feedback I had received from
Chris on the first round. I wasn't sure what to do with a couple of the
things Chris said "drm/i915/bdw: collect semaphore error state" for
example. Anything which I was confused about is left in.

As before, the series is pushed here:
git://people.freedesktop.org/~bwidawsk/drm-intel bdw-sema

If you find yourself with a problem after running these, you can either
disable semaphores from the kernel command line, or revert "drm/i915:
unleash semaphores on gen8"


Ben Widawsky (13):
  drm/i915: Move semaphore specific ring members to struct
  drm/i915: Virtualize the ringbuffer signal func
  drm/i915: Move ring_begin to signal()
  drm/i915: Make semaphore updates more precise
  drm/i915: gen specific ring init
  drm/i915/bdw: implement semaphore signal
  drm/i915/bdw: implement semaphore wait
  drm/i915: FORCE_RESTORE for gen8 semaphores
  drm/i915/bdw: poll semaphores
  drm/i915: Extract semaphore error collection
  drm/i915/bdw: collect semaphore error state
  drm/i915: unleash semaphores on gen8
  drm/i915: semaphore debugfs

 drivers/gpu/drm/i915/i915_debugfs.c     |  69 +++++++
 drivers/gpu/drm/i915/i915_drv.c         |   6 -
 drivers/gpu/drm/i915/i915_drv.h         |   2 +
 drivers/gpu/drm/i915/i915_gem.c         |  10 +-
 drivers/gpu/drm/i915/i915_gem_context.c |   9 +
 drivers/gpu/drm/i915/i915_gpu_error.c   |  76 ++++++--
 drivers/gpu/drm/i915/i915_reg.h         |   8 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c | 330 ++++++++++++++++++++++++--------
 drivers/gpu/drm/i915/intel_ringbuffer.h |  87 ++++++++-
 9 files changed, 483 insertions(+), 114 deletions(-)

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1.8.5.3