diff options
| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-11-11 14:30:23 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-11-16 13:26:12 +0100 |
| commit | 9a758d8756daab5b8fda006e131c066336b16a32 (patch) | |
| tree | 453f3eeffd5bbd66a22124082738d9473b61f4ab /drivers/gpu/drm | |
| parent | 27c3e9452d552ea86369a94f23287a9675f2d7a1 (diff) | |
| download | linux-9a758d8756daab5b8fda006e131c066336b16a32.tar.gz | |
drm: Move nomodeset kernel parameter to drivers/video
Move the nomodeset kernel parameter to drivers/video to make it
available to non-DRM drivers. Adapt the interface, but keep the DRM
interface drm_firmware_drivers_only() to avoid churn within DRM. The
function should later be inlined into callers.
The parameter disables any DRM graphics driver that would replace a
driver for firmware-provided scanout buffers. It is an option to easily
fallback to basic graphics output if the hardware's native driver is
broken. Moving it to a more prominent location wil make it available
to fbdev as well.
v2:
* clarify the meaning of the nomodeset parameter (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221111133024.9897-2-tzimmermann@suse.de
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_nomodeset.c | 24 |
3 files changed, 1 insertions, 31 deletions
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index 34f5a092c99e..722ded626399 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -8,7 +8,6 @@ menuconfig DRM tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)" depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA - select DRM_NOMODESET select DRM_PANEL_ORIENTATION_QUIRKS select HDMI select FB_CMDLINE @@ -19,6 +18,7 @@ menuconfig DRM # gallium uses SYS_kcmp for os_same_file_description() to de-duplicate # device and dmabuf fd. Let's make sure that is available for our userspace. select KCMP + select VIDEO_NOMODESET help Kernel-level support for the Direct Rendering Infrastructure (DRI) introduced in XFree86 4.0. If you say Y here, you need to select @@ -514,11 +514,6 @@ config DRM_EXPORT_FOR_TESTS config DRM_PANEL_ORIENTATION_QUIRKS tristate -# Separate option because nomodeset parameter is global and expected built-in -config DRM_NOMODESET - bool - default n - config DRM_LIB_RANDOM bool default n diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index c44a54cadb61..f92cd7892711 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -72,7 +72,6 @@ drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \ drm_privacy_screen_x86.o obj-$(CONFIG_DRM) += drm.o -obj-$(CONFIG_DRM_NOMODESET) += drm_nomodeset.o obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o # diff --git a/drivers/gpu/drm/drm_nomodeset.c b/drivers/gpu/drm/drm_nomodeset.c deleted file mode 100644 index f3978d5bd3a1..000000000000 --- a/drivers/gpu/drm/drm_nomodeset.c +++ /dev/null @@ -1,24 +0,0 @@ -// 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("Booted with the nomodeset parameter. Only the system framebuffer will be available\n"); - - return 1; -} - -/* Disable kernel modesetting */ -__setup("nomodeset", disable_modeset); |