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authorImre Deak <imre.deak@intel.com>2019-10-17 16:38:31 +0300
committerDave Airlie <airlied@redhat.com>2019-11-14 10:51:54 +1000
commit2248a28384fedb84d1d068383bbec113cc4ce0fe (patch)
tree13b39db147461ad288d38d8232dafcc3055d81bc /drivers/of
parent94bc7f56a8afd0522439a48162b8b8167c227c89 (diff)
drm/i915/gen8+: Add RC6 CTX corruption WA
In some circumstances the RC6 context can get corrupted. We can detect this and take the required action, that is disable RC6 and runtime PM. The HW recovers from the corrupted state after a system suspend/resume cycle, so detect the recovery and re-enable RC6 and runtime PM. v2: rebase (Mika) v3: - Move intel_suspend_gt_powersave() to the end of the GEM suspend sequence. - Add commit message. v4: - Rebased on intel_uncore_forcewake_put(i915->uncore, ...) API change. v5: - Rebased on latest upstream gt_pm refactoring. v6: - s/i915_rc6_/intel_rc6_/ - Don't return a value from i915_rc6_ctx_wa_check(). v7: - Rebased on latest gt rc6 refactoring. Signed-off-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> [airlied: pull this later version of this patch into drm-next to make resolving the conflict mess easier.] Signed-off-by: Dave Airlie <airlied@redhat.com>
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