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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: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
This commit is contained in:
Joonas Lahtinen 2017-08-11 12:51:26 +03:00 committed by Zhenyu Wang
parent 9dfb8e5b91
commit 4fc0506351
1 changed files with 9 additions and 4 deletions
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13
drivers/gpu/drm/i915/i915_gem_gtt.c
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@ -180,10 +180,15 @@ 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
return has_aliasing_ppgtt ? 1 : 0;
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;
}
static int ppgtt_bind_vma(struct i915_vma *vma,