From: Zhenyu Wang Date: Mon, 4 Dec 2017 02:42:58 +0000 (+0800) Subject: drm/i915/gvt: set max priority for gvt context X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1603660b3342269c95fcafee1945790342a8c28e;p=linux.git 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 --- diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index 9100aebcb105b..ab9a500ba3e90 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",