On Mon, Apr 11, 2016 at 01:50:16PM +0100, Peter Antoine wrote: > On Fri, 8 Apr 2016, Chris Wilson wrote: > >>+ execbuf.flags = I915_EXEC_SECURE | engine_id; > >>+ > >>+ gem_execbuf(fd, &execbuf); > >>+ gem_sync(fd, handle); > > > > ^ Papering over a bug in your code. > > > >Hint: did you tell anyone that you were writing into the buffer? > Ok a write_domain and gem_wait.
gem_wait isn't required, the order is enforced by gem_execbuf followed by gem_read or subsequent gem_set_domain (if using mmap interface). The API is geared towards explicit domain management. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
