On Fri, Jul 12, 2019 at 11:14:44AM +0000, Michal Wajdeczko wrote: > We are about to change default setting of "enable_guc" modparam > from 0(disabled) to -1(auto). As we only want to turn on > GuC/HuC on Gen11+, keep it off for older gens. > > Note that it would be still possible to enable GuC/HuC on these > old platforms using explicit "enable_guc=2" modparam. > > Signed-off-by: Michal Wajdeczko <michal.wajdec...@intel.com> > Cc: Jani Nikula <jani.nik...@intel.com> > Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com> > Cc: Rodrigo Vivi <rodrigo.v...@intel.com> > Cc: Chris Wilson <ch...@chris-wilson.co.uk> > Cc: Daniele Ceraolo Spurio <daniele.ceraolospu...@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.v...@intel.com> > --- > drivers/gpu/drm/i915/intel_uc.c | 10 +++++++--- > 1 file changed, 7 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c > index fdf00f1ebb57..72bbcb2597fd 100644 > --- a/drivers/gpu/drm/i915/intel_uc.c > +++ b/drivers/gpu/drm/i915/intel_uc.c > @@ -58,12 +58,16 @@ static int __get_platform_enable_guc(struct > drm_i915_private *i915) > struct intel_uc_fw *huc_fw = &i915->huc.fw; > int enable_guc = 0; > > - /* Default is to use HuC if we know GuC and HuC firmwares */ > + if (!HAS_GUC(i915)) > + return 0; > + > + /* We don't want to enable GuC/HuC on pre-Gen11 by default */ > + if (INTEL_GEN(i915) < 11) > + return 0; > + > if (intel_uc_fw_is_selected(guc_fw) && intel_uc_fw_is_selected(huc_fw)) > enable_guc |= ENABLE_GUC_LOAD_HUC; > > - /* Any platform specific fine-tuning can be done here */ > - > return enable_guc; > } > > -- > 2.19.2 > _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
