[
{
"EventCode": "0x5C",
"UMask": "0x1",
"BriefDescription": "Unhalted core cycles when the thread is in ring 0",
"Counter": "0,1,2,3",
"EventName": "CPL_CYCLES.RING0",
"PublicDescription": "Unhalted core cycles when the thread is in ring 0.",
"SampleAfterValue": "2000003",
"CounterHTOff": "0,1,2,3,4,5,6,7"
},
{
"EventCode": "0x5C",
"UMask": "0x2",
"BriefDescription": "Unhalted core cycles when thread is in rings 1, 2, or 3",
"Counter": "0,1,2,3",
"EventName": "CPL_CYCLES.RING123",
"PublicDescription": "Unhalted core cycles when the thread is not in ring 0.",
"SampleAfterValue": "2000003",
"CounterHTOff": "0,1,2,3,4,5,6,7"
},
{
"EdgeDetect": "1",
"EventCode": "0x5C",
"UMask": "0x1",
"BriefDescription": "Number of intervals between processor halts while thread is in ring 0.",
"Counter": "0,1,2,3",
"EventName": "CPL_CYCLES.RING0_TRANS",
"CounterMask": "1",
"SampleAfterValue": "100003",
"CounterHTOff": "0,1,2,3,4,5,6,7"
},
{
"EventCode": "0x63",
"UMask": "0x1",
"BriefDescription": "Cycles when L1 and L2 are locked due to UC or split lock",
"Counter": "0,1,2,3",
"EventName": "LOCK_CYCLES.SPLIT_LOCK_UC_LOCK_DURATION",
"PublicDescription": "Cycles in which the L1D and L2 are locked, due to a UC lock or split lock.",
"SampleAfterValue": "2000003",
"CounterHTOff": "0,1,2,3,4,5,6,7"
}
]it/refs/?id=4e5b54f127426c82dc2816340c26d951a5bb3429'>refslogtreecommitdiff
|
drm: prevent double-(un)registration for connectors
If we're unlucky then the registration from a hotplugged connector
might race with the final registration step on driver load. And since
MST topology discover is asynchronous that's even somewhat likely.
v2: Also update the kerneldoc for @registered!
v3: Review from Chris:
- Improve kerneldoc for late_register/early_unregister callbacks.
- Use mutex_destroy.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reported-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161218133545.2106-1-daniel.vetter@ffwll.ch
(cherry picked from commit e73ab00e9a0f1731f34d0620a9c55f5c30c4ad4e)