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Diffstat (limited to 'drivers/gpu/drm/i915/Kconfig.profile')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig.profile | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile index 48df8889a88a..1799537a3228 100644 --- a/drivers/gpu/drm/i915/Kconfig.profile +++ b/drivers/gpu/drm/i915/Kconfig.profile @@ -12,6 +12,29 @@ config DRM_I915_USERFAULT_AUTOSUSPEND May be 0 to disable the extra delay and solely use the device level runtime pm autosuspend delay tunable. +config DRM_I915_HEARTBEAT_INTERVAL + int "Interval between heartbeat pulses (ms)" + default 2500 # milliseconds + help + The driver sends a periodic heartbeat down all active engines to + check the health of the GPU and undertake regular house-keeping of + internal driver state. + + May be 0 to disable heartbeats and therefore disable automatic GPU + hang detection. + +config DRM_I915_PREEMPT_TIMEOUT + int "Preempt timeout (ms, jiffy granularity)" + default 100 # milliseconds + help + How long to wait (in milliseconds) for a preemption event to occur + when submitting a new context via execlists. If the current context + does not hit an arbitration point and yield to HW before the timer + expires, the HW will be reset to allow the more important context + to execute. + + May be 0 to disable the timeout. + config DRM_I915_SPIN_REQUEST int "Busywait for request completion (us)" default 5 # microseconds @@ -25,3 +48,29 @@ config DRM_I915_SPIN_REQUEST 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. + +config DRM_I915_STOP_TIMEOUT + int "How long to wait for an engine to quiesce gracefully before reset (ms)" + default 100 # milliseconds + help + By stopping submission and sleeping for a short time before resetting + the GPU, we allow the innocent contexts also on the system to quiesce. + It is then less likely for a hanging context to cause collateral + damage as the system is reset in order to recover. The corollary is + that the reset itself may take longer and so be more disruptive to + interactive or low latency workloads. + +config DRM_I915_TIMESLICE_DURATION + int "Scheduling quantum for userspace batches (ms, jiffy granularity)" + default 1 # milliseconds + help + When two user batches of equal priority are executing, we will + alternate execution of each batch to ensure forward progress of + all users. This is necessary in some cases where there may be + an implicit dependency between those batches that requires + concurrent execution in order for them to proceed, e.g. they + interact with each other via userspace semaphores. Each context + is scheduled for execution for the timeslice duration, before + switching to the next context. + + May be 0 to disable timeslicing. |