On Wed, Mar 29, 2017 at 05:02:47PM +0800, Xiong Zhang wrote: > In a virtual passthrough environment, the ISA bridge isn't able to > be passed through. So pch_id couldn't be gotten from ISA bridge, but > pch_id is used to identify LPT_H and LPT_LP, this patch set pch_id > according to IGD type. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99938 > > Signed-off-by: Xiong Zhang <xiong.y.zhang@xxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_drv.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c > index 8b807a9..32a9bff 100644 > --- a/drivers/gpu/drm/i915/i915_drv.c > +++ b/drivers/gpu/drm/i915/i915_drv.c > @@ -135,9 +135,17 @@ static enum intel_pch intel_virt_detect_pch(struct drm_i915_private *dev_priv) > DRM_DEBUG_KMS("Assuming CouarPoint PCH\n"); > } else if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) { > ret = PCH_LPT; > + if (IS_HSW_ULT(dev_priv) || IS_BDW_ULT(dev_priv)) > + dev_priv->pch_id = INTEL_PCH_LPT_LP_DEVICE_ID_TYPE; > + else > + dev_priv->pch_id = INTEL_PCH_LPT_DEVICE_ID_TYPE; > DRM_DEBUG_KMS("Assuming LynxPoint PCH\n"); > } else if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { > ret = PCH_SPT; > + if (IS_SKL_ULT(dev_priv) || IS_KBL_ULT(dev_priv)) > + dev_priv->pch_id = INTEL_PCH_SPT_LP_DEVICE_ID_TYPE; > + else > + dev_priv->pch_id = INTEL_PCH_SPT_DEVICE_ID_TYPE; I'm not 100% sure the ULT/ULX <=> LP thing always holds. I *think* it should but I've never been able to convince myself totally. As far as KBL goes, maybe we want PCH_KBP for it? Although I don't actually know why we even make the distinction between the two since they seem identical for us, and we don't distinguish LPT vs. WPT either. Rodrigo? > DRM_DEBUG_KMS("Assuming SunrisePoint PCH\n"); > } > > -- > 1.9.1 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > https://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Ville Syrjälä Intel OTC _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
