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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-23 16:31:08 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-24 01:52:10 +0300 |
| commit | 058179e72e0956a2dfe4927db6cbe5fbfb2406aa (patch) | |
| tree | c187567f6a2c286a45d28f88189313df6856ce31 /drivers/gpu/drm/i915/Kconfig.profile | |
| parent | 2e0986a58cc4f2e7f9e7ede19ec32b9c116d0068 (diff) | |
| download | linux-058179e72e0956a2dfe4927db6cbe5fbfb2406aa.tar.xz | |
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/Kconfig.profile')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig.profile | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile index b071b6024152..8ab7af5eb311 100644 --- a/drivers/gpu/drm/i915/Kconfig.profile +++ b/drivers/gpu/drm/i915/Kconfig.profile @@ -12,6 +12,17 @@ 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 |