drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)
authorRodrigo Vivi <rodrigo.vivi@intel.com>
Wed, 6 Sep 2017 22:03:25 +0000 (15:03 -0700)
committerRodrigo Vivi <rodrigo.vivi@intel.com>
Wed, 6 Sep 2017 22:04:11 +0000 (15:04 -0700)
commitaa9f4c4f19131e05323d0d5a068ccb46058e8257
treee9efb06710f22b0400d3c335684a6bdd52fdf32c
parent88c880bbdebe43ae13599d678b35c565e7563193
drm/i915/cnl: WaThrottleEUPerfToAvoidTDBackPressure:cnl(pre-prod)

Wa for B-stepping only.

A for a hang issue that requires throttling EU performace
to 12.5% to avoid back pressure to thread dispatch

v2: Rebased. No change from v1.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Oscar Mateo <oscar.mateo@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170906220325.24524-1-rodrigo.vivi@intel.com
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_engine_cs.c