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.zh...@intel.com> --- 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; DRM_DEBUG_KMS("Assuming SunrisePoint PCH\n"); } -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
