On 3/1/23 05:58, Rob Clark wrote: > From: Rob Clark <robdclark@xxxxxxxxxxxx> > > Add a way to hint to the fence signaler of an upcoming deadline, such as > vblank, which the fence waiter would prefer not to miss. This is to aid > the fence signaler in making power management decisions, like boosting > frequency as the deadline approaches and awareness of missing deadlines > so that can be factored in to the frequency scaling. > > v2: Drop dma_fence::deadline and related logic to filter duplicate > deadlines, to avoid increasing dma_fence size. The fence-context > implementation will need similar logic to track deadlines of all > the fences on the same timeline. [ckoenig] > v3: Clarify locking wrt. set_deadline callback > v4: Clarify in docs comment that this is a hint > v5: Drop DMA_FENCE_FLAG_HAS_DEADLINE_BIT. > v6: More docs > v7: Fix typo, clarify past deadlines > > Signed-off-by: Rob Clark <robdclark@xxxxxxxxxxxx> > Reviewed-by: Christian König <christian.koenig@xxxxxxx> > Acked-by: Pekka Paalanen <pekka.paalanen@xxxxxxxxxxxxx> I have given my Reviewed-by from v7 [1], but it didn't get picked up, thus giving it again: Reviewed-by: Bagas Sanjaya <bagasdotme@xxxxxxxxx> Thanks. [1]: https://lore.kernel.org/linux-doc/Y%2F7LfLxhIjDpD4D3@xxxxxxxxx/ -- An old man doll... just what I always wanted! - Clara
