diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_engine_cs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_engine_cs.c | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c index 8303e05b0c7d..6bfd7e3ed152 100644 --- a/drivers/gpu/drm/i915/intel_engine_cs.c +++ b/drivers/gpu/drm/i915/intel_engine_cs.c @@ -458,14 +458,6 @@ static void intel_engine_init_batch_pool(struct intel_engine_cs *engine) static bool csb_force_mmio(struct drm_i915_private *i915) { - /* - * IOMMU adds unpredictable latency causing the CSB write (from the - * GPU into the HWSP) to only be visible some time after the interrupt - * (missed breadcrumb syndrome). - */ - if (intel_vtd_active()) - return true; - /* Older GVT emulation depends upon intercepting CSB mmio */ if (intel_vgpu_active(i915) && !intel_vgpu_has_hwsp_emulation(i915)) return true; |