Op 14-03-18 om 17:07 schreef Chris Wilson: > Quoting Maarten Lankhorst (2018-03-14 15:58:32) >> Currently tests modify i915.enable_psr and then do a modeset cycle >> to change PSR. We can write a value to i915_edp_psr_status to force >> a certain value without a modeset. >> >> To retain compatibility with older userspace, we also still allow >> the override through the module parameter, and add some tracking >> to check whether a debugfs mode is specified. > Is it possible for you to mandate that the process holds the file open > for as long as it wants its value to hold. Then we can automatically > clean up if the process dies; without requiring userspace to dig itself > out of a hole. > -Chris
For testing PSR someone might directly echo values to the debugfs file, so I didn't want to keep the fd handle as reference count.. _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
