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authorChris Wilson2016-09-09 15:11:50 +0200
committerChris Wilson2016-09-09 15:23:03 +0200
commit22dd3bb9190566c7c3b80edb7dea67d1e21d0f91 (patch)
tree01898a53077a19a7c4608716a7c638924bc0992b /drivers/gpu/drm/i915/i915_debugfs.c
parentdrm/i915: Expand bool interruptible to pass flags to i915_wait_request() (diff)
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drm/i915: Mark up all locked waiters
In the next patch we want to handle reset directly by a locked waiter in order to avoid issues with returning before the reset is handled. To handle the reset, we must first know whether we hold the struct_mutex. If we do not hold the struct_mtuex we can not perform the reset, but we do not block the reset worker either (and so we can just continue to wait for request completion) - otherwise we must relinquish the mutex. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20160909131201.16673-10-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0e4cbad7a883..6a270bc0fdb3 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4794,7 +4794,9 @@ i915_drop_caches_set(void *data, u64 val)
return ret;
if (val & DROP_ACTIVE) {
- ret = i915_gem_wait_for_idle(dev_priv, I915_WAIT_INTERRUPTIBLE);
+ ret = i915_gem_wait_for_idle(dev_priv,
+ I915_WAIT_INTERRUPTIBLE |
+ I915_WAIT_LOCKED);
if (ret)
goto unlock;
}