From 1603660b3342269c95fcafee1945790342a8c28e 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 --- 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 9100aeb..ab9a500 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -1038,6 +1038,9 @@ int intel_vgpu_setup_submission(struct intel_vgpu *vgpu) if (IS_ERR(s->shadow_ctx)) return PTR_ERR(s->shadow_ctx); + if (HAS_LOGICAL_RING_PREEMPTION(vgpu->gvt->dev_priv)) + s->shadow_ctx->priority = INT_MAX; + bitmap_zero(s->shadow_ctx_desc_updated, I915_NUM_ENGINES); s->workloads = kmem_cache_create("gvt-g_vgpu_workload", -- 2.7.4