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drm/i915/gvt: set max priority for gvt context

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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 <zhenyuw@linux.intel.com>
This commit is contained in:
Zhenyu Wang
2017-12-04 10:42:58 +08:00
parent da5f99eacc
commit 1603660b33
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/gvt/scheduler.c
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@@ -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",