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drm/vkms: Allow to configure the default device creation

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Add a new module param to allow to create or not the default VKMS
instance. Useful when combined with configfs to avoid having additional
VKMS instances.

Tested-by: Mark Yacoub <markyacoub@google.com>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Link: https://lore.kernel.org/r/20251016175618.10051-13-jose.exposito89@gmail.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
This commit is contained in:
José Expósito 2025-10-16 19:56:14 +02:00 committed by Luca Ceresoli
parent 64229b846a
commit 8c29107a61
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/vkms/vkms_drv.c
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@ -50,6 +50,10 @@ static bool enable_overlay;
module_param_named(enable_overlay, enable_overlay, bool, 0444);
MODULE_PARM_DESC(enable_overlay, "Enable/Disable overlay support");
static bool create_default_dev = true;
module_param_named(create_default_dev, create_default_dev, bool, 0444);
MODULE_PARM_DESC(create_default_dev, "Create or not the default VKMS device");
DEFINE_DRM_GEM_FOPS(vkms_driver_fops);
static void vkms_atomic_commit_tail(struct drm_atomic_state *old_state)
@ -219,6 +223,9 @@ static int __init vkms_init(void)
if (ret)
return ret;
if (!create_default_dev)
return 0;
config = vkms_config_default_create(enable_cursor, enable_writeback, enable_overlay);
if (IS_ERR(config))
return PTR_ERR(config);