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[RFC,07/11] sw_sync: add fill_driver_data support

Message ID 1338939956-17312-8-git-send-email-konkers@android.com
State New
Headers show

Commit Message

Erik Gilling June 5, 2012, 11:45 p.m. UTC 
Allows sw_sync private data to be available in get fence data ioctl.

Signed-off-by: Erik Gilling <konkers@android.com>
---
 drivers/base/sw_sync.c |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/base/sw_sync.c b/drivers/base/sw_sync.c
index 41beb9e..21ddf4f 100644
--- a/drivers/base/sw_sync.c
+++ b/drivers/base/sw_sync.c
@@ -86,6 +86,19 @@  static void sw_sync_print_pt(struct seq_file *s, struct sync_pt *sync_pt)
 	seq_printf(s, "%d / %d", pt->value, obj->value);
 }
 
+static int sw_sync_fill_driver_data(struct sync_pt *sync_pt,
+				    void *data, int size)
+{
+	struct sw_sync_pt *pt = (struct sw_sync_pt *)sync_pt;
+
+	if (size < sizeof(pt->value))
+		return -ENOMEM;
+
+	memcpy(data, &pt->value, sizeof(pt->value));
+
+	return sizeof(pt->value);
+}
+
 struct sync_timeline_ops sw_sync_timeline_ops = {
 	.driver_name = "sw_sync",
 	.dup = sw_sync_pt_dup,
@@ -93,6 +106,7 @@  struct sync_timeline_ops sw_sync_timeline_ops = {
 	.compare = sw_sync_pt_compare,
 	.print_obj = sw_sync_print_obj,
 	.print_pt = sw_sync_print_pt,
+	.fill_driver_data = sw_sync_fill_driver_data,
 };