[PATCH RFC v2 05/18] drm/vkms: Introduce config for plane name

[Louis Chauvet]

As a plane will be a folder in ConfigFS, add name configuration for plane
so it will reflect the folder name.

Signed-off-by: Louis Chauvet <louis.chauvet at bootlin.com>
---
 drivers/gpu/drm/vkms/vkms_config.c | 14 ++++++++++++++
 drivers/gpu/drm/vkms/vkms_config.h |  2 ++
 drivers/gpu/drm/vkms/vkms_plane.c  |  2 +-
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c
index 31981dce2c2ed3ef8fc52e227e301d5f8d5338e6..8af7b80d1fea201102f45f8ee49fd88ce26733e3 100644
--- a/drivers/gpu/drm/vkms/vkms_config.c
+++ b/drivers/gpu/drm/vkms/vkms_config.c
@@ -36,6 +36,10 @@ struct vkms_config *vkms_config_alloc_default(bool enable_writeback, bool enable
 		goto err_alloc;
 
 	plane->type = DRM_PLANE_TYPE_PRIMARY;
+	plane->name = kzalloc(sizeof("primary"), GFP_KERNEL);
+	if (!plane->name)
+		goto err_alloc;
+	sprintf(plane->name, "primary");
 
 	if (enable_overlay) {
 		for (int i = 0; i < NUM_OVERLAY_PLANES; i++) {
@@ -43,6 +47,10 @@ struct vkms_config *vkms_config_alloc_default(bool enable_writeback, bool enable
 			if (!plane)
 				goto err_alloc;
 			plane->type = DRM_PLANE_TYPE_OVERLAY;
+			plane->name = kzalloc(10, GFP_KERNEL);
+			if (!plane->name)
+				goto err_alloc;
+			snprintf(plane->name, 10, "plane-%d", i);
 		}
 	}
 	if (enable_cursor) {
@@ -50,6 +58,10 @@ struct vkms_config *vkms_config_alloc_default(bool enable_writeback, bool enable
 		if (!plane)
 			goto err_alloc;
 		plane->type = DRM_PLANE_TYPE_CURSOR;
+		plane->name = kzalloc(sizeof("cursor"), GFP_KERNEL);
+		if (!plane->name)
+			goto err_alloc;
+		sprintf(plane->name, "cursor");
 	}
 	return vkms_config;
 
@@ -82,6 +94,7 @@ void vkms_config_delete_plane(struct vkms_config_plane *vkms_config_overlay)
 	if (!vkms_config_overlay)
 		return;
 	list_del(&vkms_config_overlay->link);
+	kfree(vkms_config_overlay->name);
 	kfree(vkms_config_overlay);
 }
 
@@ -136,6 +149,7 @@ static int vkms_config_show(struct seq_file *m, void *data)
 	seq_printf(m, "writeback=%d\n", vkmsdev->config->writeback);
 	list_for_each_entry(config_plane, &vkmsdev->config->planes, link) {
 		seq_puts(m, "plane:\n");
+		seq_printf(m, "\tname: %s\n", config_plane->name);
 		seq_printf(m, "\ttype: %d\n", config_plane->type);
 	}
 
diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms_config.h
index ac99f1df6d9a17bd7040a1e7a6acce14cd8fd9d0..3e70bce8d4f7b06f44ec79b3a3d8e6897f9a44c7 100644
--- a/drivers/gpu/drm/vkms/vkms_config.h
+++ b/drivers/gpu/drm/vkms/vkms_config.h
@@ -27,6 +27,7 @@ struct vkms_config {
  * struct vkms_config_plane
  *
  * @link: Link to the others planes
+ * @name: Name of the plane
  * @type: Type of the plane. The creator of configuration needs to ensures that at least one
  *        plane is primary.
  * @plane: Internal usage. This pointer should never be considered as valid. It can be used to
@@ -36,6 +37,7 @@ struct vkms_config {
 struct vkms_config_plane {
 	struct list_head link;
 
+	char *name;
 	enum drm_plane_type type;
 
 	/* Internal usage */
diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c
index 3d742e47e0fcd647225251f53a73b6ac0e669868..56725f243382d75668ab2bf23423a69c75cb366b 100644
--- a/drivers/gpu/drm/vkms/vkms_plane.c
+++ b/drivers/gpu/drm/vkms/vkms_plane.c
@@ -228,7 +228,7 @@ struct vkms_plane *vkms_plane_init(struct vkms_device *vkmsdev,
 	plane = drmm_universal_plane_alloc(dev, struct vkms_plane, base, 0,
 					   &vkms_plane_funcs,
 					   vkms_formats, ARRAY_SIZE(vkms_formats),
-					   NULL, config->type, NULL);
+					   NULL, config->type, config->name);
 	if (IS_ERR(plane))
 		return plane;
 

-- 
2.47.0