staging: sw_sync: Add debug support

Add debugfs support hooks.

Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robclark@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
[jstultz: Add commit message]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/android/sw_sync.c b/drivers/staging/android/sw_sync.c
index c27004c94cc60d51ea185ead70288627e961e73e..64c5ebbbb1a0c8b87df51daaf2dbee34e9145e8e 100644 (file)
--- a/drivers/staging/android/sw_sync.c
+++ b/drivers/staging/android/sw_sync.c
@@ -70,11 +70,30 @@ static int sw_sync_pt_compare(struct sync_pt *a, struct sync_pt *b)
        return sw_sync_cmp(pt_a->value, pt_b->value);
 }
 
+static void sw_sync_print_obj(struct seq_file *s,
+                             struct sync_timeline *sync_timeline)
+{
+       struct sw_sync_timeline *obj = (struct sw_sync_timeline *)sync_timeline;
+
+       seq_printf(s, "%d", obj->value);
+}
+
+static void sw_sync_print_pt(struct seq_file *s, struct sync_pt *sync_pt)
+{
+       struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
+       struct sw_sync_timeline *obj =
+               (struct sw_sync_timeline *)sync_pt->parent;
+
+       seq_printf(s, "%d / %d", pt->value, obj->value);
+}
+
 struct sync_timeline_ops sw_sync_timeline_ops = {
        .driver_name = "sw_sync",
        .dup = sw_sync_pt_dup,
        .has_signaled = sw_sync_pt_has_signaled,
        .compare = sw_sync_pt_compare,
+       .print_obj = sw_sync_print_obj,
+       .print_pt = sw_sync_print_pt,
 };