linux-kernel - [PATCH 9/9] drm/qxl: use new debugfs device-centered functions

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Date:   Mon, 26 Dec 2022 12:50:29 -0300
From:   Maíra Canal <mcanal@...lia.com>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc:     Melissa Wen <mwen@...lia.com>,
        André Almeida <andrealmeid@...lia.com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        etnaviv@...ts.freedesktop.org, noralf@...nnes.org,
        Liviu Dudau <liviu.dudau@....com>,
        Brian Starkey <brian.starkey@....com>,
        Emma Anholt <emma@...olt.net>,
        Alexey Brodkin <abrodkin@...opsys.com>,
        David Airlie <airlied@...hat.com>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>,
        Tomi Valkeinen <tomba@...nel.org>,
        Maíra Canal <mcanal@...lia.com>
Subject: [PATCH 9/9] drm/qxl: use new debugfs device-centered functions

Replace the use of drm_debugfs_create_files() with the new
drm_debugfs_add_files() function, which center the debugfs files
management on the drm_device instead of drm_minor. Moreover, remove the
debugfs_init hook and add the debugfs files directly on qxl_pci_probe(),
before drm_dev_register().

Signed-off-by: Maíra Canal <mcanal@...lia.com>
---
 drivers/gpu/drm/qxl/qxl_debugfs.c | 18 ++++++++----------
 drivers/gpu/drm/qxl/qxl_drv.c     |  5 ++---
 drivers/gpu/drm/qxl/qxl_drv.h     |  2 +-
 3 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_debugfs.c b/drivers/gpu/drm/qxl/qxl_debugfs.c
index bdfce1a8f006..fd18a7b193b3 100644
--- a/drivers/gpu/drm/qxl/qxl_debugfs.c
+++ b/drivers/gpu/drm/qxl/qxl_debugfs.c
@@ -38,8 +38,8 @@
 static int
 qxl_debugfs_irq_received(struct seq_file *m, void *data)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct qxl_device *qdev = to_qxl(node->minor->dev);
+	struct drm_debugfs_entry *entry = m->private;
+	struct qxl_device *qdev = to_qxl(entry->dev);
 
 	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received));
 	seq_printf(m, "%d\n", atomic_read(&qdev->irq_received_display));
@@ -52,8 +52,8 @@ qxl_debugfs_irq_received(struct seq_file *m, void *data)
 static int
 qxl_debugfs_buffers_info(struct seq_file *m, void *data)
 {
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct qxl_device *qdev = to_qxl(node->minor->dev);
+	struct drm_debugfs_entry *entry = m->private;
+	struct qxl_device *qdev = to_qxl(entry->dev);
 	struct qxl_bo *bo;
 
 	list_for_each_entry(bo, &qdev->gem.objects, list) {
@@ -76,21 +76,19 @@ qxl_debugfs_buffers_info(struct seq_file *m, void *data)
 	return 0;
 }
 
-static struct drm_info_list qxl_debugfs_list[] = {
+static struct drm_debugfs_info qxl_debugfs_list[] = {
 	{ "irq_received", qxl_debugfs_irq_received, 0, NULL },
 	{ "qxl_buffers", qxl_debugfs_buffers_info, 0, NULL },
 };
 #define QXL_DEBUGFS_ENTRIES ARRAY_SIZE(qxl_debugfs_list)
 #endif
 
-void
-qxl_debugfs_init(struct drm_minor *minor)
+void qxl_debugfs_init(struct drm_device *drm)
 {
 #if defined(CONFIG_DEBUG_FS)
-	struct qxl_device *dev = to_qxl(minor->dev);
+	struct qxl_device *dev = to_qxl(drm);
 
-	drm_debugfs_create_files(qxl_debugfs_list, QXL_DEBUGFS_ENTRIES,
-				 minor->debugfs_root, minor);
+	drm_debugfs_add_files(drm, qxl_debugfs_list, QXL_DEBUGFS_ENTRIES);
 
 	qxl_ttm_debugfs_init(dev);
 #endif
diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c
index a3b83f89e061..3ae2db78f671 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.c
+++ b/drivers/gpu/drm/qxl/qxl_drv.c
@@ -116,6 +116,8 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret)
 		goto unload;
 
+	qxl_debugfs_init(&qdev->ddev);
+
 	drm_kms_helper_poll_init(&qdev->ddev);
 
 	/* Complete initialization. */
@@ -287,9 +289,6 @@ static struct drm_driver qxl_driver = {
 
 	.dumb_create = qxl_mode_dumb_create,
 	.dumb_map_offset = drm_gem_ttm_dumb_map_offset,
-#if defined(CONFIG_DEBUG_FS)
-	.debugfs_init = qxl_debugfs_init,
-#endif
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
diff --git a/drivers/gpu/drm/qxl/qxl_drv.h b/drivers/gpu/drm/qxl/qxl_drv.h
index 0868d5d2a839..cb84a3bebcec 100644
--- a/drivers/gpu/drm/qxl/qxl_drv.h
+++ b/drivers/gpu/drm/qxl/qxl_drv.h
@@ -397,7 +397,7 @@ int qxl_garbage_collect(struct qxl_device *qdev);
 
 /* debugfs */
 
-void qxl_debugfs_init(struct drm_minor *minor);
+void qxl_debugfs_init(struct drm_device *drm);
 void qxl_ttm_debugfs_init(struct qxl_device *qdev);
 
 /* qxl_prime.c */
-- 
2.38.1