[Intel-gfx] [PATCH 0/9] HW contest support for Ironlake

[Ben Widawsky]

By the request of Ken, and Chris, I've added support for HW contexts to
Ironlake. This is not the first time I've done this, but I think I'll
skip the somewhat ugly history on the matter.

Our existing support for Ironlake sets up 2 contexts, the powerctx, and
the renderctx. The former is stored in special memory on GEN6+, and the
latter is *extremely* similar to the way we use default context on GEN6+
(ie. if users don't opt in to contexts, they are using it even if they
don't realize).

The patch series first tries to tie that renderctx into our existing
i915 context code, and then rips out the old renderctx. Powerctx is left
alone since it still really is a special case.

Finally, in the series I reenable rc6 on ILK. I've never had an issue
with this on my ILK, but I recommend anyone testing on it who sees
issues to try to disable it via modparam firstly.

The patch series is minimally tested. I told Chris and Ken at the
offset, they'd need to do the heavy lifting on the testing front.

Ben Widawsky (9):
  drm/i915: move ilk rc6 context setup
  drm/i915: Convert renderctx to a regular context
  drm/i915: Make ILK context objects more like others
  drm/i915: Add gen5 support to mi_set_context
  drm/i915: Use do_switch for ILK renderctx
  drm/i915: HW contexts for ILK
  drm/i915: Use only the default context for ILK
  drm/i915: Restore ILK powerctx pin attributes
  drm/i915: Re-enable rc6 on ILK (again^5)

 drivers/gpu/drm/i915/i915_debugfs.c     |  6 ----
 drivers/gpu/drm/i915/i915_drv.h         |  3 +-
 drivers/gpu/drm/i915/i915_gem_context.c | 28 ++++++++++++++---
 drivers/gpu/drm/i915/i915_reg.h         |  1 +
 drivers/gpu/drm/i915/intel_pm.c         | 56 ---------------------------------
 5 files changed, 25 insertions(+), 69 deletions(-)

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1.8.3.2