tree 9f7bb0ae54cae0241b1908dc0af87dcdd3ffc677
parent 6f99c84873f455a76a0356061b276bc0c89b5d92
author Samuel Pitoiset <samuel.pitoiset@gmail.com> 1433709625 +0200
committer Ben Skeggs <bskeggs@redhat.com> 1440729599 +1000

drm/nouveau/pm: allow the userspace to schedule hardware counters

This adds a new method NVIF_PERFCTR_V0_INIT which starts a batch of
hardware counters for sampling. This will allow the userspace to start
a monitoring session using the INIT method and to stop it with SAMPLE,
for example before and after a frame is rendered.

This commit temporarily breaks nv_perfmon but this is going to be fixed
with the upcoming patch.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>