On Tue, Oct 21, 2014 at 03:01:49PM -0200, Paulo Zanoni wrote: > From: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> > > If we don't enable audio runtime PM, the audio driver won't release > its reference, the refcount won't ever become zero, so we will never > actually runtime suspend. So move this code from pm_rpm.c to > igt_aux.c, so kms_flip - and any other IGT test case using RPM - can > benefit from it. > > Previously, if you ran pm_rpm before running the other tests - or if > you just didn't have snd_hda_intel loaded - you wouldn't notice this > bug. > > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78893 > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx> > Signed-off-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> Yeah, somehow missed that in my extraction - with all the trouble I've stopped building with audio enabled. Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx> Cheers, Daniel > --- > lib/igt_aux.c | 14 ++++++++++++++ > tests/pm_rpm.c | 12 ------------ > 2 files changed, 14 insertions(+), 12 deletions(-) > > diff --git a/lib/igt_aux.c b/lib/igt_aux.c > index 01654f0..0e1eeea 100644 > --- a/lib/igt_aux.c > +++ b/lib/igt_aux.c > @@ -431,6 +431,20 @@ bool igt_setup_runtime_pm(void) > if (pm_status_fd >= 0) > return true; > > + /* The Audio driver can get runtime PM references, so we need to make > + * sure its runtime PM is enabled, so it can release the refs and > + * actually enable us to runtime suspend. */ > + fd = open("/sys/module/snd_hda_intel/parameters/power_save", O_WRONLY); > + if (fd >= 0) { > + igt_assert(write(fd, "1\n", 2) == 2); > + close(fd); > + } > + fd = open("/sys/bus/pci/devices/0000:00:03.0/power/control", O_WRONLY); > + if (fd >= 0) { > + igt_assert(write(fd, "auto\n", 5) == 5); > + close(fd); > + } > + > /* Our implementation uses autosuspend. Try to set it to 0ms so the test > * suite goes faster and we have a higher probability of triggering race > * conditions. */ > diff --git a/tests/pm_rpm.c b/tests/pm_rpm.c > index 4ee3ca7..25c9900 100644 > --- a/tests/pm_rpm.c > +++ b/tests/pm_rpm.c > @@ -697,18 +697,6 @@ static void setup_non_graphics_runtime_pm(void) > close(fd); > } > free(file_name); > - > - /* Audio runtime PM policies. */ > - fd = open("/sys/module/snd_hda_intel/parameters/power_save", O_WRONLY); > - if (fd >= 0) { > - igt_assert(write(fd, "1\n", 2) == 2); > - close(fd); > - } > - fd = open("/sys/bus/pci/devices/0000:00:03.0/power/control", O_WRONLY); > - if (fd >= 0) { > - igt_assert(write(fd, "auto\n", 5) == 5); > - close(fd); > - } > } > > static void setup_environment(void) > -- > 1.9.1 > -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
