Displaying 2 results from an estimated 2 matches for "reservation_object_get_fences_rcu".
2014 Jul 23
0
[PATCH 09/17] drm/radeon: use common fence implementation for fences
...e at some point is signaled?
You can wait with RCU, without holding the ww_mutex, by calling reservation_object_wait_timeout_rcu on ttm_bo->resv.
If you don't want to block you could test with reservation_object_test_signaled_rcu.
Or if you want a copy of all fences without taking locks, try reservation_object_get_fences_rcu. (Might be out of date by the time the function returns if you don't hold ww_mutex, if you hold ww_mutex you probably don't need to call this function.)
I didn't add non-rcu versions, but using the RCU functions would work with ww_mutex held too, probably with some small overhead.
>...
2014 Jul 22
5
[PATCH 09/17] drm/radeon: use common fence implementation for fences
Am 22.07.2014 17:42, schrieb Daniel Vetter:
> On Tue, Jul 22, 2014 at 5:35 PM, Christian K?nig
> <christian.koenig at amd.com> wrote:
>> Drivers exporting fences need to provide a fence->signaled and a fence->wait
>> function, everything else like fence->enable_signaling or calling
>> fence_signaled() from the driver is optional.
>>
>> Drivers