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-rw-r--r--drivers/gpu/drm/i915/Kconfig.profile49
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.