> -----Original Message----- > From: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> > Sent: Monday, June 6, 2022 1:53 PM > To: Gupta, Anshuman <anshuman.gupta@xxxxxxxxx>; intel- > gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: [PATCH] drm/i915/dg2: Add Wa_14015795083 > > On Mon, 06 Jun 2022, Anshuman Gupta <anshuman.gupta@xxxxxxxxx> wrote: > > i915 must disable Render DOP clock gating globally. > > > > B.Spec: 52621 > > Please use > > Bspec: Thanks for pointing out, will fix this. Regards, Anshuman Gupta. > > BR, > Jani. > > > Cc: Matt Roper <matthew.d.roper@xxxxxxxxx> > > Cc: Badal Nilawar <badal.nilawar@xxxxxxxxx> > > Signed-off-by: Anshuman Gupta <anshuman.gupta@xxxxxxxxx> > > --- > > drivers/gpu/drm/i915/gt/intel_gt_regs.h | 1 + > > drivers/gpu/drm/i915/gt/intel_workarounds.c | 5 +++++ > > 2 files changed, 6 insertions(+) > > > > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h > b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > > index 58e9b464d564..55a291ab5536 100644 > > --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h > > +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h > > @@ -630,6 +630,7 @@ > > > > #define GEN7_MISCCPCTL _MMIO(0x9424) > > #define GEN7_DOP_CLOCK_GATE_ENABLE (1 << 0) > > +#define GEN12_DOP_CLOCK_GATE_RENDER_ENABLE (1 << 1) > > #define GEN8_DOP_CLOCK_GATE_CFCLK_ENABLE (1 << 2) > > #define GEN8_DOP_CLOCK_GATE_GUC_ENABLE (1 << 4) > > #define GEN8_DOP_CLOCK_GATE_MEDIA_ENABLE (1 << 6) > > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c > b/drivers/gpu/drm/i915/gt/intel_workarounds.c > > index a604bc7c0701..b957dec64eee 100644 > > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > > @@ -1489,6 +1489,11 @@ dg2_gt_workarounds_init(struct intel_gt *gt, > struct i915_wa_list *wal) > > * performance guide section. > > */ > > wa_write_or(wal, GEN12_SQCM, EN_32B_ACCESS); > > + > > + /* > > + * Wa_14015795083 > > + */ > > + wa_write_clr(wal, GEN7_MISCCPCTL, > GEN12_DOP_CLOCK_GATE_RENDER_ENABLE); > > } > > > > static void > > -- > Jani Nikula, Intel Open Source Graphics Center
