Re: [PATCH v7 06/15] dma-buf/sync_file: Support (E)POLLPRI

2023-02-28 Thread Pekka Paalanen
On Mon, 27 Feb 2023 11:35:12 -0800 Rob Clark wrote: > From: Rob Clark > > Allow userspace to use the EPOLLPRI/POLLPRI flag to indicate an urgent > wait (as opposed to a "housekeeping" wait to know when to cleanup after > some work has completed). Usermode components of GPU driver stacks > ofte

[PATCH v7 06/15] dma-buf/sync_file: Support (E)POLLPRI

2023-02-27 Thread Rob Clark
From: Rob Clark Allow userspace to use the EPOLLPRI/POLLPRI flag to indicate an urgent wait (as opposed to a "housekeeping" wait to know when to cleanup after some work has completed). Usermode components of GPU driver stacks often poll() on fence fd's to know when it is safe to do things like f