From bf42db4a829194a32eefd38c273a8180a4619957 Mon Sep 17 00:00:00 2001
From: Stuart Summers <stuart.summers@intel.com>
Date: Tue, 19 Nov 2019 16:45:05 -0800
Subject: Skip MCHBAR queries when display is not available
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Git-commit: e7862f476e6f78ebf715d6090e922cd91b1a194c
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Platforms without display do not map the MCHBAR MMIO into the GFX
device BAR. Skip this sequence when display is not available.
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191120004505.149516-1-stuart.summers@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/i915_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 8d7049792d62..f509d826fcc7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1052,7 +1052,7 @@ intel_get_dram_info(struct drm_i915_private *dev_priv)
*/
dram_info->is_16gb_dimm = !IS_GEN9_LP(dev_priv);
- if (INTEL_GEN(dev_priv) < 9)
+ if (INTEL_GEN(dev_priv) < 9 || !HAS_DISPLAY(dev_priv))
return;
if (IS_GEN9_LP(dev_priv))
--
2.28.0