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drm/vkms: Create a debugfs file to get vkms config data

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Creating a vkms_config debugfs file in vkms_drv.c to get/track vkms config
data, for the long-term plan of making vkms configurable and have multiple
different instances.

Reviewed-by: Melissa Wen <melissa.srw@gmail.com>
Signed-off-by: Beatriz Martins de Carvalho <martinsdecarvalhobeatriz@gmail.com>
Signed-off-by: Melissa Wen <melissa.srw@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210708092002.11847-1-martinsdecarvalhobeatriz@gmail.com
This commit is contained in:
Beatriz Martins de Carvalho 2021-07-08 10:20:02 +01:00 committed by Melissa Wen
parent 3e1ad79bf6
commit 911684de2a
1 changed files with 28 additions and 0 deletions
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28
drivers/gpu/drm/vkms/vkms_drv.c
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@ -28,6 +28,9 @@
#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"
@ -86,12 +89,37 @@ 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_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->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_info_list vkms_config_debugfs_list[] = {
{ "vkms_config", vkms_config_show, 0 },
};
static void vkms_config_debugfs_init(struct drm_minor *minor)
{
drm_debugfs_create_files(vkms_config_debugfs_list, ARRAY_SIZE(vkms_config_debugfs_list),
minor->debugfs_root, minor);
}
static const struct drm_driver vkms_driver = {
.driver_features = DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_GEM,
.release = vkms_release,
.fops = &vkms_driver_fops,
DRM_GEM_SHMEM_DRIVER_OPS,
.debugfs_init = vkms_config_debugfs_init,
.name = DRIVER_NAME,
.desc = DRIVER_DESC,
.date = DRIVER_DATE,