Commit 2345ab1d authored May 08, 2017 by Chuanxiao Dong Committed by Zhenyu Wang May 08, 2017

drm/i915/gvt: not to restore in-context mmio



Needn't to restore the in-context MMIO when SCHEDULE_OUT. Sometimes
with restoring the in-context MMIO, some GPU hang can be observed. So
remove the in-context MMIO restore

Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>

parent 7f48d0b4

drivers/gpu/drm/i915/gvt/render.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -333,6 +333,9 @@ void intel_gvt_restore_render_mmio(struct intel_vgpu *vgpu, int ring_id)
		} else
		v = mmio->value;

		if (mmio->in_context)
		continue;

		I915_WRITE(mmio->reg, v);
		POSTING_READ(mmio->reg);