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Message-ID: <20240813105134.17439-2-jose.exposito89@gmail.com>
Date: Tue, 13 Aug 2024 12:44:12 +0200
From: José Expósito <jose.exposito89@...il.com>
To: rodrigosiqueiramelo@...il.com
Cc: melissa.srw@...il.com,
mairacanal@...eup.net,
hamohammed.sa@...il.com,
daniel@...ll.ch,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
tzimmermann@...e.de,
airlied@...il.com,
dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
louis.chauvet@...tlin.com,
José Expósito <jose.exposito89@...il.com>
Subject: [RFC PATCH 01/17] drm/vkms: Extract vkms_config header
Creating a new vkms_config structure will be more complex once we
start adding more options.
Extract the vkms_config structure to its own header and source files
and add functions to create and delete a vkms_config and to initialize
debugfs.
Refactor, no functional changes.
Signed-off-by: José Expósito <jose.exposito89@...il.com>
---
drivers/gpu/drm/vkms/Makefile | 3 +-
drivers/gpu/drm/vkms/vkms_config.c | 48 ++++++++++++++++++++++++++++++
drivers/gpu/drm/vkms/vkms_config.h | 25 ++++++++++++++++
drivers/gpu/drm/vkms/vkms_drv.c | 34 +++++----------------
drivers/gpu/drm/vkms/vkms_drv.h | 10 +------
drivers/gpu/drm/vkms/vkms_output.c | 1 +
6 files changed, 84 insertions(+), 37 deletions(-)
create mode 100644 drivers/gpu/drm/vkms/vkms_config.c
create mode 100644 drivers/gpu/drm/vkms/vkms_config.h
diff --git a/drivers/gpu/drm/vkms/Makefile b/drivers/gpu/drm/vkms/Makefile
index 1b28a6a32948..b371b5d70ee3 100644
--- a/drivers/gpu/drm/vkms/Makefile
+++ b/drivers/gpu/drm/vkms/Makefile
@@ -6,6 +6,7 @@ vkms-y := \
vkms_formats.o \
vkms_crtc.o \
vkms_composer.o \
- vkms_writeback.o
+ vkms_writeback.o \
+ vkms_config.o
obj-$(CONFIG_DRM_VKMS) += vkms.o
diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c
new file mode 100644
index 000000000000..c58eda76c238
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_config.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/slab.h>
+
+#include <drm/drm_print.h>
+#include <drm/drm_debugfs.h>
+
+#include "vkms_config.h"
+#include "vkms_drv.h"
+
+struct vkms_config *vkms_config_create(void)
+{
+ struct vkms_config *config;
+
+ config = kzalloc(sizeof(*config), GFP_KERNEL);
+ if (!config)
+ return ERR_PTR(-ENOMEM);
+
+ return config;
+}
+
+void vkms_config_destroy(struct vkms_config *config)
+{
+ kfree(config);
+}
+
+static int vkms_config_show(struct seq_file *m, void *data)
+{
+ struct drm_debugfs_entry *entry = m->private;
+ struct drm_device *dev = entry->dev;
+ struct vkms_device *vkmsdev = drm_device_to_vkms_device(dev);
+
+ seq_printf(m, "writeback=%d\n", vkmsdev->config->writeback);
+ seq_printf(m, "cursor=%d\n", vkmsdev->config->cursor);
+ seq_printf(m, "overlay=%d\n", vkmsdev->config->overlay);
+
+ return 0;
+}
+
+static const struct drm_debugfs_info vkms_config_debugfs_list[] = {
+ { "vkms_config", vkms_config_show, 0 },
+};
+
+void vkms_config_debugfs_init(struct vkms_device *vkms_device)
+{
+ drm_debugfs_add_files(&vkms_device->drm, vkms_config_debugfs_list,
+ ARRAY_SIZE(vkms_config_debugfs_list));
+}
diff --git a/drivers/gpu/drm/vkms/vkms_config.h b/drivers/gpu/drm/vkms/vkms_config.h
new file mode 100644
index 000000000000..65da8cd6ff96
--- /dev/null
+++ b/drivers/gpu/drm/vkms/vkms_config.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _VKMS_CONFIG_H_
+#define _VKMS_CONFIG_H_
+
+#include <linux/types.h>
+
+struct vkms_device;
+
+struct vkms_config {
+ bool writeback;
+ bool cursor;
+ bool overlay;
+ /* only set when instantiated */
+ struct vkms_device *dev;
+};
+
+/* VKMS Config */
+struct vkms_config *vkms_config_create(void);
+void vkms_config_destroy(struct vkms_config *config);
+
+/* DebugFS */
+void vkms_config_debugfs_init(struct vkms_device *vkms_device);
+
+#endif /* _VKMS_CONFIG_H_ */
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c
index 8dc9dc13896e..6bf462985731 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.c
+++ b/drivers/gpu/drm/vkms/vkms_drv.c
@@ -26,11 +26,9 @@
#include <drm/drm_gem_shmem_helper.h>
#include <drm/drm_vblank.h>
+#include "vkms_config.h"
#include "vkms_drv.h"
-#include <drm/drm_print.h>
-#include <drm/drm_debugfs.h>
-
#define DRIVER_NAME "vkms"
#define DRIVER_DESC "Virtual Kernel Mode Setting"
#define DRIVER_DATE "20180514"
@@ -90,23 +88,6 @@ static void vkms_atomic_commit_tail(struct drm_atomic_state *old_state)
drm_atomic_helper_cleanup_planes(dev, old_state);
}
-static int vkms_config_show(struct seq_file *m, void *data)
-{
- struct drm_debugfs_entry *entry = m->private;
- struct drm_device *dev = entry->dev;
- struct vkms_device *vkmsdev = drm_device_to_vkms_device(dev);
-
- seq_printf(m, "writeback=%d\n", vkmsdev->config->writeback);
- seq_printf(m, "cursor=%d\n", vkmsdev->config->cursor);
- seq_printf(m, "overlay=%d\n", vkmsdev->config->overlay);
-
- return 0;
-}
-
-static const struct drm_debugfs_info vkms_config_debugfs_list[] = {
- { "vkms_config", vkms_config_show, 0 },
-};
-
static const struct drm_driver vkms_driver = {
.driver_features = DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_GEM,
.release = vkms_release,
@@ -216,8 +197,7 @@ static int vkms_create(struct vkms_config *config)
if (ret)
goto out_devres;
- drm_debugfs_add_files(&vkms_device->drm, vkms_config_debugfs_list,
- ARRAY_SIZE(vkms_config_debugfs_list));
+ vkms_config_debugfs_init(vkms_device);
ret = drm_dev_register(&vkms_device->drm, 0);
if (ret)
@@ -239,9 +219,9 @@ static int __init vkms_init(void)
int ret;
struct vkms_config *config;
- config = kmalloc(sizeof(*config), GFP_KERNEL);
- if (!config)
- return -ENOMEM;
+ config = vkms_config_create();
+ if (IS_ERR(config))
+ return PTR_ERR(config);
default_config = config;
@@ -251,7 +231,7 @@ static int __init vkms_init(void)
ret = vkms_create(config);
if (ret)
- kfree(config);
+ vkms_config_destroy(config);
return ret;
}
@@ -280,7 +260,7 @@ static void __exit vkms_exit(void)
if (default_config->dev)
vkms_destroy(default_config);
- kfree(default_config);
+ vkms_config_destroy(default_config);
}
module_init(vkms_init);
diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h
index 5e46ea5b96dc..5c523ca27f22 100644
--- a/drivers/gpu/drm/vkms/vkms_drv.h
+++ b/drivers/gpu/drm/vkms/vkms_drv.h
@@ -115,15 +115,7 @@ struct vkms_output {
spinlock_t composer_lock;
};
-struct vkms_device;
-
-struct vkms_config {
- bool writeback;
- bool cursor;
- bool overlay;
- /* only set when instantiated */
- struct vkms_device *dev;
-};
+struct vkms_config;
struct vkms_device {
struct drm_device drm;
diff --git a/drivers/gpu/drm/vkms/vkms_output.c b/drivers/gpu/drm/vkms/vkms_output.c
index 5ce70dd946aa..afe3945c1962 100644
--- a/drivers/gpu/drm/vkms/vkms_output.c
+++ b/drivers/gpu/drm/vkms/vkms_output.c
@@ -1,5 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
+#include "vkms_config.h"
#include "vkms_drv.h"
#include <drm/drm_atomic_helper.h>
#include <drm/drm_edid.h>
--
2.46.0
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