Quoting Bob Paauwe (2018-09-10 18:12:25)
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index d6f7b9fe1d26..e0619952ff52 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -299,6 +299,7 @@ static const struct intel_device_info intel_sandybridge_m_gt2_info = {
> .has_rc6p = 1, \
> .has_aliasing_ppgtt = 1, \
> .has_full_ppgtt = 1, \
> + .full_ppgtt_bits = 32, \
> GEN_DEFAULT_PIPEOFFSETS, \
> GEN_DEFAULT_PAGE_SIZES, \
> IVB_CURSOR_OFFSETS
> @@ -353,6 +354,7 @@ static const struct intel_device_info intel_valleyview_info = {
> .has_hotplug = 1,
> .has_aliasing_ppgtt = 1,
> .has_full_ppgtt = 1,
> + .full_ppgtt_bits = 32,
> .has_snoop = true,
> .has_coherent_ggtt = false,
> .ring_mask = RENDER_RING | BSD_RING | BLT_RING,
To be pedant, .bits = 31 for gen6/7.
-Chris
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