[Intel-gfx] [PATCH v8 0/8] drm/i915: per context slice/subslice powergating

[Lionel Landwerlin]

Hi all,

Another iteration that takes into account :

   - Tvrtko's nits from v7 on patch 8

   - Tvrtko's suggestion not to return EPERM when dynamic sseu is
     disabled through sysfs. Instead store the requested value and
     apply it when/if dynamic sseu becomes enabled.

   - A pretty important fix that prevented the MI_SDRI to be applied.
     We were writting into a GGTT offset which didn't work (tests have
     been updated to catch this). To address this, this iteration adds
     patch 6 that creates a view of the context images into the kernel
     context's PPGTT so that we can properly modify them from the
     kernel context.

Many thanks to Chris & Tvrtko for review & discussions.

Cheers,

Chris Wilson (3):
  drm/i915: Program RPCS for Broadwell
  drm/i915: Record the sseu configuration per-context & engine
  drm/i915: Expose RPCS (SSEU) configuration to userspace

Lionel Landwerlin (5):
  drm/i915/perf: simplify configure all context function
  drm/i915/perf: reuse intel_lrc ctx regs macro
  drm/i915/perf: lock powergating configuration to default when active
  drm/i915: create context image vma in kernel context
  drm/i915: add a sysfs entry to let users set sseu configs

 drivers/gpu/drm/i915/i915_drv.h         |  50 ++++++
 drivers/gpu/drm/i915/i915_gem.c         |   2 +
 drivers/gpu/drm/i915/i915_gem_context.c | 216 ++++++++++++++++++++++++
 drivers/gpu/drm/i915/i915_gem_context.h |   5 +
 drivers/gpu/drm/i915/i915_perf.c        |  68 ++++----
 drivers/gpu/drm/i915/i915_request.c     |  20 +++
 drivers/gpu/drm/i915/i915_request.h     |  10 ++
 drivers/gpu/drm/i915/i915_sysfs.c       |  40 +++++
 drivers/gpu/drm/i915/intel_lrc.c        | 146 ++++++++++------
 drivers/gpu/drm/i915/intel_lrc.h        |   3 +
 drivers/gpu/drm/i915/intel_ringbuffer.c |   2 +
 drivers/gpu/drm/i915/intel_ringbuffer.h |   4 +
 include/uapi/drm/i915_drm.h             |  43 +++++
 13 files changed, 530 insertions(+), 79 deletions(-)

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2.17.0