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Diffstat (limited to 'drivers/gpu/drm/i915/Kconfig.profile')
| -rw-r--r-- | drivers/gpu/drm/i915/Kconfig.profile | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/Kconfig.profile b/drivers/gpu/drm/i915/Kconfig.profile index 0e5db98da8f3..4fd1ea639d0f 100644 --- a/drivers/gpu/drm/i915/Kconfig.profile +++ b/drivers/gpu/drm/i915/Kconfig.profile @@ -1,3 +1,17 @@ +config DRM_I915_USERFAULT_AUTOSUSPEND + int "Runtime autosuspend delay for userspace GGTT mmaps (ms)" + default 250 # milliseconds + help + On runtime suspend, as we suspend the device, we have to revoke + userspace GGTT mmaps and force userspace to take a pagefault on + their next access. The revocation and subsequent recreation of + the GGTT mmap can be very slow and so we impose a small hysteris + that complements the runtime-pm autosuspend and provides a lower + floor on the autosuspend delay. + + May be 0 to disable the extra delay and solely use the device level + runtime pm autosuspend delay tunable. + config DRM_I915_SPIN_REQUEST int default 5 # microseconds |