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drm/i915/execlists: Distinguish the incomplete context notifies

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Let the listener know that the context we just scheduled out was not
complete, and will be scheduled back in at a later point.

v2: Handle CONTEXT_STATUS_PREEMPTED in gvt by aliasing it to
CONTEXT_STATUS_OUT for the moment, gvt can expand upon the difference
later.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Zhenyu Wang" <zhenyuw@linux.intel.com>
Cc: "Wang, Zhi A" <zhi.a.wang@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171003203453.15692-3-chris@chris-wilson.co.uk
This commit is contained in:
Chris Wilson 2017-10-03 21:34:47 +01:00
parent 5152defe4a
commit d6c0511300
3 changed files with 3 additions and 1 deletions
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1
drivers/gpu/drm/i915/gvt/scheduler.c
View File

@ -174,6 +174,7 @@ static int shadow_context_status_change(struct notifier_block *nb,
atomic_set(&workload->shadow_ctx_active, 1);
break;
case INTEL_CONTEXT_SCHEDULE_OUT:
case INTEL_CONTEXT_SCHEDULE_PREEMPTED:
atomic_set(&workload->shadow_ctx_active, 0);
break;
default:

2
drivers/gpu/drm/i915/intel_lrc.c
View File

@ -617,7 +617,7 @@ execlist_cancel_port_requests(struct intel_engine_execlists *execlists)
while (num_ports-- && port_isset(port)) {
struct drm_i915_gem_request *rq = port_request(port);
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_OUT);
execlists_context_status_change(rq, INTEL_CONTEXT_SCHEDULE_PREEMPTED);
i915_gem_request_put(rq);
memset(port, 0, sizeof(*port));

1
drivers/gpu/drm/i915/intel_lrc.h
View File

@ -61,6 +61,7 @@
enum {
INTEL_CONTEXT_SCHEDULE_IN = 0,
INTEL_CONTEXT_SCHEDULE_OUT,
INTEL_CONTEXT_SCHEDULE_PREEMPTED,
};
/* Logical Rings */