Early revs didn't have PPGTT support, so disable there. v2: add debug msg when disabling on early stepping
References: https://bugs.freedesktop.org/show_bug.cgi?id=79669 References: https://bugs.freedesktop.org/show_bug.cgi?id=79670 Signed-off-by: Jesse Barnes <[email protected]> --- drivers/gpu/drm/i915/i915_gem_gtt.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 8b3cde7..0f51f83 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -63,6 +63,12 @@ static int sanitize_enable_ppgtt(struct drm_device *dev, int enable_ppgtt) } #endif + /* Early VLV doesn't have this */ + if (IS_VALLEYVIEW(dev) && dev->pdev->revision < 0xc) { + DRM_DEBUG_DRIVER("disabling PPGTT on pre-rev c VLV\n"); + return 0; + } + return HAS_ALIASING_PPGTT(dev) ? 1 : 0; } -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
