29.03.2021 16:38, Mikko Perttunen пишет: > Show the number of pending waiters in the debugfs status file. > This is useful for testing to verify that waiters do not leak > or accumulate incorrectly. > > Signed-off-by: Mikko Perttunen <[email protected]> > --- > drivers/gpu/host1x/debug.c | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/host1x/debug.c b/drivers/gpu/host1x/debug.c > index 1b4997bda1c7..8a14880c61bb 100644 > --- a/drivers/gpu/host1x/debug.c > +++ b/drivers/gpu/host1x/debug.c > @@ -69,6 +69,7 @@ static int show_channel(struct host1x_channel *ch, void > *data, bool show_fifo) > > static void show_syncpts(struct host1x *m, struct output *o) > { > + struct list_head *pos; > unsigned int i; > > host1x_debug_output(o, "---- syncpts ----\n"); > @@ -76,12 +77,19 @@ static void show_syncpts(struct host1x *m, struct output > *o) > for (i = 0; i < host1x_syncpt_nb_pts(m); i++) { > u32 max = host1x_syncpt_read_max(m->syncpt + i); > u32 min = host1x_syncpt_load(m->syncpt + i); > + unsigned int waiters = 0; > > - if (!min && !max) > + spin_lock(&m->syncpt[i].intr.lock); > + list_for_each(pos, &m->syncpt[i].intr.wait_head) > + waiters++; > + spin_unlock(&m->syncpt[i].intr.lock); > + > + if (!min && !max && !waiters) > continue; > > - host1x_debug_output(o, "id %u (%s) min %d max %d\n", > - i, m->syncpt[i].name, min, max); > + host1x_debug_output(o, > + "id %u (%s) min %d max %d (%d waiters)\n", > + i, m->syncpt[i].name, min, max, waiters); > } > > for (i = 0; i < host1x_syncpt_nb_bases(m); i++) { >
Tested-by: Dmitry Osipenko <[email protected]> _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
