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Commit 4fc05063 authored by Joonas Lahtinen's avatar Joonas Lahtinen Committed by Zhenyu Wang
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drm/i915: Disconnect 32 and 48 bit ppGTT support 



Configurations like virtualized environments may support only 48 bit
ppGTT without supporting 32 bit ppGTT. Support this by disconnecting
the relationship of the two feature bits.

Cc: Tina Zhang <tina.zhang@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhi Wang <zhi.a.wang@intel.com>
Reviewed-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: default avatarZhenyu Wang <zhenyuw@linux.intel.com>
parent 9dfb8e5b

drivers/gpu/drm/i915/i915_gem_gtt.c

+9 −4
Original line number Diff line number Diff line
@@ -180,9 +180,14 @@ int intel_sanitize_enable_ppgtt(struct drm_i915_private *dev_priv, 
		return 0;

	}



	if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists && has_full_ppgtt)

		return has_full_48bit_ppgtt ? 3 : 2;

	else

	if (INTEL_GEN(dev_priv) >= 8 && i915.enable_execlists) {

		if (has_full_48bit_ppgtt)

			return 3;



		if (has_full_ppgtt)

			return 2;

	}



	return has_aliasing_ppgtt ? 1 : 0;

}