[Intel-gfx] [PATCH 0/3] drm/i915: add WaIncreaseDefaultTLBEntries

tim.gore at intel.com tim.gore at intel.com
Mon Jan 25 06:16:34 PST 2016

From: Tim Gore <tim.gore at intel.com>

These 3 patches introduce a performance workaround that
can have significant impact (> 10%) on some OCL workloads.
It is split into 3 patches as follows.
 1) The first patch introduces a new function to collect
   together workarounds that are GT specific and apply
   globally across the GPU (as opposed to per ring or per
   context). This function is called at driver load and
   on resume (from suspend) and after a GPU reset, so it
   can host worarounds that are clobbered by these events.
   This new function was suggested by Mika Kuoppala.
2) The second patch adds WaIncreaseDefaultTLBEntries for
   gen8 GPU's to the above function.
3) Finally add WaIncreaseDefaultTLBEntries for gen9.

Tim Gore (3):
  drm/i915: add function for GT related workarounds
  drm/i915/gen8: add WaIncreaseDefaultTLBEntries
  drm/i915/gen9: add WaIncreaseDefaultTLBEntries

 drivers/gpu/drm/i915/i915_gem_gtt.c | 21 +++++++++++++++++++++
 drivers/gpu/drm/i915/i915_reg.h     |  7 +++++++
 2 files changed, 28 insertions(+)


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