On Tue, 2021-07-13 at 20:15 -0700, Matt Roper wrote: > Although the BW_BUDDY registers still exist, they are not used for > anything on DG2. This change is expected to hold true for future dgpu's > too.
Reviewed-by: José Roberto de Souza <[email protected]> > > Bspec: 49218 > Signed-off-by: Matt Roper <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_display_power.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c > b/drivers/gpu/drm/i915/display/intel_display_power.c > index 04af987f3324..9593c517a321 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_power.c > +++ b/drivers/gpu/drm/i915/display/intel_display_power.c > @@ -5814,6 +5814,10 @@ static void tgl_bw_buddy_init(struct drm_i915_private > *dev_priv) > unsigned long abox_mask = INTEL_INFO(dev_priv)->abox_mask; > int config, i; > > + /* BW_BUDDY registers are not used on dgpu's beyond DG1 */ > + if (IS_DGFX(dev_priv) && !IS_DG1(dev_priv)) > + return; > + > if (IS_ALDERLAKE_S(dev_priv) || > IS_DG1_REVID(dev_priv, DG1_REVID_A0, DG1_REVID_A0) || > IS_TGL_DISPLAY_STEP(dev_priv, STEP_A0, STEP_B0)) _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
