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| author |   Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-23 14:31:08 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-23 23:52:10 +0100 |
| commit | 058179e72e0956a2dfe4927db6cbe5fbfb2406aa (patch) | |
| tree | c187567f6a2c286a45d28f88189313df6856ce31 /drivers/gpu/drm/i915/gt/intel_engine_pm.c | |
| parent | drm/i915/gem: Cancel contexts when hangchecking is disabled (diff) | |
| download | linux-dev-058179e72e0956a2dfe4927db6cbe5fbfb2406aa.tar.xz linux-dev-058179e72e0956a2dfe4927db6cbe5fbfb2406aa.zip | |
drm/i915/gt: Replace hangcheck by heartbeats
Replace sampling the engine state every so often with a periodic
heartbeat request to measure the health of an engine. This is coupled
with the forced-preemption to allow long running requests to survive so
long as they do not block other users.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Jon Bloomfield <jon.bloomfield@intel.com>
Reviewed-by: Jon Bloomfield <jon.bloomfield@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191023133108.21401-5-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_engine_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_pm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index 7d76611d9df1..6fbfa2162e54 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -7,6 +7,7 @@ #include "i915_drv.h" #include "intel_engine.h" +#include "intel_engine_heartbeat.h" #include "intel_engine_pm.h" #include "intel_engine_pool.h" #include "intel_gt.h" @@ -34,7 +35,7 @@ static int __engine_unpark(struct intel_wakeref *wf) if (engine->unpark) engine->unpark(engine); - intel_engine_init_hangcheck(engine); + intel_engine_unpark_heartbeat(engine); return 0; } @@ -158,6 +159,7 @@ static int __engine_park(struct intel_wakeref *wf) call_idle_barriers(engine); /* cleanup after wedging */ + intel_engine_park_heartbeat(engine); intel_engine_disarm_breadcrumbs(engine); intel_engine_pool_park(&engine->pool); @@ -188,6 +190,7 @@ void intel_engine_init__pm(struct intel_engine_cs *engine) struct intel_runtime_pm *rpm = engine->uncore->rpm; intel_wakeref_init(&engine->wakeref, rpm, &wf_ops); + intel_engine_init_heartbeat(engine); } #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) |