summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/i915_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index 36c0cf131e93..4aa3db61a535 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -853,6 +853,10 @@ static void intel_device_info_runtime_init(struct drm_device *dev)
else if (INTEL_INFO(dev)->gen >= 9)
gen9_sseu_info_init(dev);
+ /* Snooping is broken on BXT A stepping. */
+ info->has_snoop = !info->has_llc;
+ info->has_snoop &= !IS_BXT_REVID(dev, 0, BXT_REVID_A1);
+
DRM_DEBUG_DRIVER("slice total: %u\n", info->slice_total);
DRM_DEBUG_DRIVER("subslice total: %u\n", info->subslice_total);
DRM_DEBUG_DRIVER("subslice per slice: %u\n", info->subslice_per_slice);