drm/i915: Implement WaProgramMiArbOnOffAroundMiSetContext:bdw (64bed788) · Commits · 戴 / test

BSpec seems to tell us we need the MI_ARB_ON_OFF w/a around MI_SET_CONTEXT on gen8. Signed-off-by:

drivers/gpu/drm/i915/i915_gem_context.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -606,8 +606,8 @@ mi_set_context(struct intel_ring_buffer *ring,
		if (ret)
		return ret;

		/* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw */
		if (IS_GEN7(ring->dev))
		/* WaProgramMiArbOnOffAroundMiSetContext:ivb,vlv,hsw,bdw */
		if (INTEL_INFO(ring->dev)->gen >= 7)
		intel_ring_emit(ring, MI_ARB_ON_OFF \| MI_ARB_DISABLE);
		else
		intel_ring_emit(ring, MI_NOOP);
		@@ -625,7 +625,7 @@ mi_set_context(struct intel_ring_buffer *ring,
		*/
		intel_ring_emit(ring, MI_NOOP);

		if (IS_GEN7(ring->dev))
		if (INTEL_INFO(ring->dev)->gen >= 7)
		intel_ring_emit(ring, MI_ARB_ON_OFF \| MI_ARB_ENABLE);
		else
		intel_ring_emit(ring, MI_NOOP);