[Intel-gfx] [PATCH] drm/i915: Skip MCHBAR queries on dgfx

Stuart Summers stuart.summers at intel.com
Thu Oct 31 15:11:24 UTC 2019


dgfx does not map the MCHBAR MMIO into the GFX device BAR.
Skip this sequence when running on dgfx.

Signed-off-by: Stuart Summers <stuart.summers at intel.com>
---
 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 21273b516dbe..1de46bfa5a19 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1056,7 +1056,7 @@ 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 || IS_DGFX(dev_priv))
 		return;
 
 	if (IS_GEN9_LP(dev_priv))
-- 
2.22.0



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