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drm/i915: disable 48bit full PPGTT when vGPU is active

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Disable 48bit full PPGTT on vGPU too for now.

Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160906040412.1274-3-zhenyuw@linux.intel.com
(cherry picked from commit e320d40022)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Zhi Wang 2016-09-06 12:04:12 +08:00 committed by Jani Nikula
parent cd28e716c6
commit 557b1a8cae
1 changed files with 6 additions and 3 deletions
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9
drivers/gpu/drm/i915/i915_gem_gtt.c
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@ -122,8 +122,11 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
has_full_48bit_ppgtt =
IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9;
if (intel_vgpu_active(dev_priv))
has_full_ppgtt = false; /* emulation is too hard */
if (intel_vgpu_active(dev_priv)) {
/* emulation is too hard */
has_full_ppgtt = false;
has_full_48bit_ppgtt = false;
}
if (!has_aliasing_ppgtt)
return 0;
@ -158,7 +161,7 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv,
return 0;
}
if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists)
if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists && has_full_ppgtt)
return has_full_48bit_ppgtt ? 3 : 2;
else
return has_aliasing_ppgtt ? 1 : 0;