diff options
Diffstat (limited to 'drivers/gpu/drm/i915/Kconfig.profile')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig.profile | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile index c280b6ae38eb..0bfd276c19fe 100644 --- a/drivers/gpu/drm/i915/Kconfig.profile +++ b/drivers/gpu/drm/i915/Kconfig.profile @@ -20,6 +20,9 @@ config DRM_I915_HEARTBEAT_INTERVAL check the health of the GPU and undertake regular house-keeping of internal driver state. + This is adjustable via + /sys/class/drm/card?/engine/*/heartbeat_interval_ms + May be 0 to disable heartbeats and therefore disable automatic GPU hang detection. @@ -33,11 +36,18 @@ config DRM_I915_PREEMPT_TIMEOUT expires, the HW will be reset to allow the more important context to execute. + This is adjustable via + /sys/class/drm/card?/engine/*/preempt_timeout_ms + May be 0 to disable the timeout. -config DRM_I915_SPIN_REQUEST - int "Busywait for request completion (us)" - default 5 # microseconds + The compiled in default may get overridden at driver probe time on + certain platforms and certain engines which will be reflected in the + sysfs control. + +config DRM_I915_MAX_REQUEST_BUSYWAIT + int "Busywait for request completion limit (ns)" + default 8000 # nanoseconds help Before sleeping waiting for a request (GPU operation) to complete, we may spend some time polling for its completion. As the IRQ may @@ -45,6 +55,9 @@ config DRM_I915_SPIN_REQUEST check if the request will complete in the time it would have taken us to enable the interrupt. + This is adjustable via + /sys/class/drm/card?/engine/*/max_busywait_duration_ns + May be 0 to disable the initial spin. In practice, we estimate the cost of enabling the interrupt (if currently disabled) to be a few microseconds. @@ -60,6 +73,9 @@ config DRM_I915_STOP_TIMEOUT that the reset itself may take longer and so be more disruptive to interactive or low latency workloads. + This is adjustable via + /sys/class/drm/card?/engine/*/stop_timeout_ms + config DRM_I915_TIMESLICE_DURATION int "Scheduling quantum for userspace batches (ms, jiffy granularity)" default 1 # milliseconds @@ -73,4 +89,7 @@ config DRM_I915_TIMESLICE_DURATION is scheduled for execution for the timeslice duration, before switching to the next context. + This is adjustable via + /sys/class/drm/card?/engine/*/timeslice_duration_ms + May be 0 to disable timeslicing. |