Apparently trinary logic is hard. We were falling through all the forced cases and simply enabling aliasing PPGTT or not based on hardware, rather than full PPGTT if available.
References: https://bugs.freedesktop.org/show_bug.cgi?id=80083 Signed-off-by: Jesse Barnes <[email protected]> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index a4153ee..86521a7 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -69,7 +69,13 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) return 0; } - return HAS_ALIASING_PPGTT(dev) ? 1 : 0; + /* Fall through to auto-detect */ + if (HAS_PPGTT(dev)) + return 2; + else if (HAS_ALIASING_PPGTT(dev)) + return 1; + + return 0; } -- 1.9.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
