On Fri, Oct 04, 2024 at 01:35:40PM -0700, Clint Taylor wrote: > Starting with Display 20 the fuse bit to disable Display PM has been > removed. > > BSPEC: 69464 > Signed-off-by: Clint Taylor <[email protected]> > Signed-off-by: Matt Atwood <[email protected]> > --- > drivers/gpu/drm/i915/display/intel_display_device.c | 6 ++++-- > 1 file changed, 4 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c > b/drivers/gpu/drm/i915/display/intel_display_device.c > index f33062322c66..19aadf635077 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_device.c > +++ b/drivers/gpu/drm/i915/display/intel_display_device.c > @@ -1653,8 +1653,10 @@ static void > __intel_display_device_info_runtime_init(struct drm_i915_private *i9 > if (dfsm & SKL_DFSM_DISPLAY_HDCP_DISABLE) > display_runtime->has_hdcp = 0; > > - if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) > - display_runtime->fbc_mask = 0; > + if (DISPLAY_VER(i915) < 20) {
According to bspec 50075 this bit actually went away in ADL-P. So we shouldn't be checking it on ADL-P, MTL, or BMG either. Matt > + if (dfsm & SKL_DFSM_DISPLAY_PM_DISABLE) > + display_runtime->fbc_mask = 0; > + } > > if (DISPLAY_VER(i915) >= 11 && (dfsm & ICL_DFSM_DMC_DISABLE)) > display_runtime->has_dmc = 0; > -- > 2.25.1 > -- Matt Roper Graphics Software Engineer Linux GPU Platform Enablement Intel Corporation
