>-----Original Message----- >From: Wajdeczko, Michal >Sent: Monday, September 10, 2018 3:42 AM >To: [email protected] >Cc: Wajdeczko, Michal <[email protected]>; Spotswood, John A ><[email protected]>; Srivatsa, Anusha <[email protected]>; >Lis, Tomasz <[email protected]>; Ceraolo Spurio, Daniele ><[email protected]> >Subject: [CI v2 1/2] drm/i915/guc: Update GuC power domain states > >We should update GuC power domain states also when GuC submission is >disabled, otherwise GuC might complain or ignore our requests. >This seems to be required for all currently released GuC firmwares. > >v2: it is only needed by pre-Gen11 firmwares > >Signed-off-by: Michal Wajdeczko <[email protected]> >Cc: John Spotswood <[email protected]> >Cc: Anusha Srivatsa <[email protected]> >Cc: Tomasz Lis <[email protected]> >Cc: Daniele Ceraolo Spurio <[email protected]> Reviewed-by: Anusha Srivatsa <[email protected]> >--- > drivers/gpu/drm/i915/intel_uc.c | 4 ++++ > 1 file changed, 4 insertions(+) > >diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c >index 7c95697..b1b3e81 100644 >--- a/drivers/gpu/drm/i915/intel_uc.c >+++ b/drivers/gpu/drm/i915/intel_uc.c >@@ -401,6 +401,10 @@ int intel_uc_init_hw(struct drm_i915_private *i915) > ret = intel_guc_submission_enable(guc); > if (ret) > goto err_communication; >+ } else if (INTEL_GEN(i915) < 11) { >+ ret = intel_guc_sample_forcewake(guc); >+ if (ret) >+ goto err_communication; > } > > dev_info(i915->drm.dev, "GuC firmware version %u.%u\n", >-- >1.9.1
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