[Intel-gfx] [PATCH] drm/i915: Setting pch_id for Gen7.5+ in virtual environment
Xiong Zhang
xiong.y.zhang at intel.com
Wed Mar 29 09:02:47 UTC 2017
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 at 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
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