From 11474e9091cf2002e948647fd9f63a7f027e488a Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Mon, 4 Dec 2017 10:42:58 +0800 Subject: [PATCH] drm/i915/gvt: set max priority for gvt context This is to workaround guest driver hang regression after preemption enable that gvt hasn't enabled handling of that for guest workload. So in effect this disables preemption for gvt context now. Signed-off-by: Zhenyu Wang (cherry picked from commit 1603660b3342269c95fcafee1945790342a8c28e) --- drivers/gpu/drm/i915/gvt/scheduler.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index ab3d041ee5f9..69f8f0d155b9 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -757,6 +757,9 @@ int intel_vgpu_init_gvt_context(struct intel_vgpu *vgpu) if (IS_ERR(vgpu->shadow_ctx)) return PTR_ERR(vgpu->shadow_ctx); + if (INTEL_INFO(vgpu->gvt->dev_priv)->has_logical_ring_preemption) + vgpu->shadow_ctx->priority = INT_MAX; + vgpu->shadow_ctx->engine[RCS].initialised = true; bitmap_zero(vgpu->shadow_ctx_desc_updated, I915_NUM_ENGINES); -- 2.30.2