osd: add osd dump cmd for drm

PD#152825: add osd dump cmd for drm

Change-Id: I9557ee84cecf00036b6ed59819aedd8e53ec6693
Signed-off-by: pengcheng chen <[email protected]>

Author: pengcheng chen

drivers/amlogic/media/osd/osd_drm.c

@@ -437,6 +437,28 @@ static ssize_t osd_clear_write_file(struct file *file,
 	return count;
 }
 
+static ssize_t osd_dump_read_file(struct file *file,
+				char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	char __iomem *buf;
+	struct seq_file *s = file->private_data;
+	int osd_id = *(int *)s;
+	ssize_t len;
+
+	osd_restore_screen_info(osd_id, &buf, &len);
+	if (buf && len)
+		return simple_read_from_buffer(userbuf, count, ppos, buf, len);
+	else
+		return 0;
+}
+
+static ssize_t osd_dump_write_file(struct file *file,
+				const char __user *userbuf,
+				size_t count, loff_t *ppos)
+{
+	return 0;
+}
 
 
 static const struct file_operations loglevel_file_ops = {
@@ -509,6 +531,11 @@ static const struct file_operations osd_clear_file_ops = {
 	.write		= osd_clear_write_file,
 };
 
+static const struct file_operations osd_dump_file_ops = {
+	.open		= simple_open,
+	.read		= osd_dump_read_file,
+	.write		= osd_dump_write_file,
+};
 
 
 struct osd_drm_debugfs_files_s {
@@ -530,6 +557,7 @@ static struct osd_drm_debugfs_files_s osd_drm_debugfs_files[] = {
 	{"order", S_IFREG | 0640, &osd_order_file_ops},
 	{"osd_afbcd", S_IFREG | 0640, &osd_afbcd_file_ops},
 	{"osd_clear", S_IFREG | 0220, &osd_clear_file_ops},
+	{"osd_dump", S_IFREG | 0640, &osd_dump_file_ops},
 };
 
 void osd_drm_debugfs_add(

drivers/amlogic/media/osd/osd_hw.c

@@ -4435,8 +4435,11 @@ static bool osd_direct_render(struct osd_plane_map_s *plane_map)
 	void *vaddr = NULL;
 
 	phy_addr = phy_addr + plane_map->byte_stride * plane_map->src_y;
+	vaddr = phys_to_virt(phy_addr);
+	osd_hw.screen_base[index] = vaddr;
+	osd_hw.screen_size[index] =
+		plane_map->byte_stride * plane_map->src_h;
 	if (osd_hw.osd_clear[index]) {
-		vaddr = phys_to_virt(phy_addr);
 		if (vaddr)
 			memset(vaddr, 0x0,
 				plane_map->byte_stride*plane_map->src_h);
@@ -4616,8 +4619,11 @@ static void osd_cursor_move(struct osd_plane_map_s *plane_map)
 	if (index != OSD2)
 		return;
 	phy_addr = phy_addr + plane_map->byte_stride * plane_map->src_y;
+	vaddr = phys_to_virt(phy_addr);
+	osd_hw.screen_base[index] = vaddr;
+	osd_hw.screen_size[index] =
+		plane_map->byte_stride * plane_map->src_h;
 	if (osd_hw.osd_clear[index]) {
-		vaddr = phys_to_virt(phy_addr);
 		if (vaddr)
 			memset(vaddr, 0x0,
 				plane_map->byte_stride*plane_map->src_h);