diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 14cd83e9ea8b..f60aed7747e5 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -3901,14 +3901,26 @@ i915_drop_caches_set(void *data, u64 val) /* No need to check and wait for gpu resets, only libdrm auto-restarts * on ioctls on -EAGAIN. */ - if (val & (DROP_ACTIVE | DROP_RETIRE | DROP_RESET_SEQNO)) { + if (val & (DROP_ACTIVE | DROP_IDLE | DROP_RETIRE | DROP_RESET_SEQNO)) { int ret; ret = mutex_lock_interruptible(&i915->drm.struct_mutex); if (ret) return ret; - if (val & DROP_ACTIVE) + /* + * To finish the flush of the idle_worker, we must complete + * the switch-to-kernel-context, which requires a double + * pass through wait_for_idle: first queues the switch, + * second waits for the switch. + */ + if (ret == 0 && val & (DROP_IDLE | DROP_ACTIVE)) + ret = i915_gem_wait_for_idle(i915, + I915_WAIT_INTERRUPTIBLE | + I915_WAIT_LOCKED, + MAX_SCHEDULE_TIMEOUT); + + if (ret == 0 && val & DROP_IDLE) ret = i915_gem_wait_for_idle(i915, I915_WAIT_INTERRUPTIBLE | I915_WAIT_LOCKED, |