linux/gpu/drm/drm_nomodeset.c

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// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
#include <linux/types.h>
static bool drm_nomodeset;
bool drm_firmware_drivers_only(void)
{
return drm_nomodeset;
}
EXPORT_SYMBOL(drm_firmware_drivers_only);
static int __init disable_modeset(char *str)
{
drm_nomodeset = true;
pr_warn("You have booted with nomodeset. This means your GPU drivers are DISABLED\n");
pr_warn("Any video related functionality will be severely degraded, and you may not even be able to suspend the system properly\n");
pr_warn("Unless you actually understand what nomodeset does, you should reboot without enabling it\n");
return 1;
}
/* Disable kernel modesetting */
__setup("nomodeset", disable_modeset);