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08f441360f
When you create a submenu using the 'menu' syntax, there is no
ambiguity about its end because the code between 'menu' and 'endmenu'
becomes the submenu.
In contrast, 'menuconfig' does not have the corresponding end marker.
Instead, the end of the submenu is inferred from symbol dependencies.
This is detailed in Documentation/kbuild/kconfig-language.rst, starting
line 348. It outlines two methods to place the code under the submenu:
(1) Open an if-block immediately after 'menuconfig', enclosing the
submenu content within it
(2) Add 'depends on' to every symbol intended for the submenu
Many subsystems opt for (1) because it reliably maintains the submenu
structure.
The DRM subsystem adopts (2). The submenu ends when the sequence of
'depends on DRM' breaks. It can be confirmed by running a GUI frontend
such as 'make menuconfig' and visiting the DRM menu:
< > Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) ----
If you toggle this, you will notice most of the DRM-related options
appear below it, not in the submenu.
I highly recommend the approach (1). Obviously, (2) is not reliable,
as the submenu breaks whenever someone forgets to add 'depends on DRM'.
This commit encloses the entire DRM configuration with 'if DRM' and
'endif', except for DRM_PANEL_ORIENTATION_QUIRKS.
Note:
Now, 'depends on DRM' properties inside the if-block are all redundant.
I leave it as follow-up cleanups.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240426135602.2500125-1-masahiroy@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
468 lines
13 KiB
Plaintext
468 lines
13 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Drm device configuration
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#
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# This driver provides support for the
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# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
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#
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menuconfig DRM
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tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
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depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
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select DRM_PANEL_ORIENTATION_QUIRKS
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select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
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select FB_CORE if DRM_FBDEV_EMULATION
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select FB_SYSMEM_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
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select HDMI
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select I2C
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select DMA_SHARED_BUFFER
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select SYNC_FILE
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# gallium uses SYS_kcmp for os_same_file_description() to de-duplicate
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# device and dmabuf fd. Let's make sure that is available for our userspace.
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select KCMP
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select VIDEO
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help
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Kernel-level support for the Direct Rendering Infrastructure (DRI)
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introduced in XFree86 4.0. If you say Y here, you need to select
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the module that's right for your graphics card from the list below.
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These modules provide support for synchronization, security, and
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DMA transfers. Please see <http://dri.sourceforge.net/> for more
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details. You should also select and configure AGP
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(/dev/agpgart) support if it is available for your platform.
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if DRM
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config DRM_MIPI_DBI
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tristate
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depends on DRM
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select DRM_KMS_HELPER
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config DRM_MIPI_DSI
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bool
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depends on DRM
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config DRM_DEBUG_MM
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bool "Insert extra checks and debug info into the DRM range managers"
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default n
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depends on DRM
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depends on STACKTRACE_SUPPORT
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select STACKDEPOT
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help
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Enable allocation tracking of memory manager and leak detection on
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shutdown.
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Recommended for driver developers only.
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If in doubt, say "N".
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config DRM_USE_DYNAMIC_DEBUG
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bool "use dynamic debug to implement drm.debug"
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default n
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depends on BROKEN
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depends on DRM
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depends on DYNAMIC_DEBUG || DYNAMIC_DEBUG_CORE
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depends on JUMP_LABEL
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help
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Use dynamic-debug to avoid drm_debug_enabled() runtime overheads.
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Due to callsite counts in DRM drivers (~4k in amdgpu) and 56
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bytes per callsite, the .data costs can be substantial, and
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are therefore configurable.
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config DRM_KUNIT_TEST_HELPERS
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tristate
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depends on DRM && KUNIT
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select DRM_KMS_HELPER
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help
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KUnit Helpers for KMS drivers.
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config DRM_KUNIT_TEST
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tristate "KUnit tests for DRM" if !KUNIT_ALL_TESTS
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depends on DRM && KUNIT && MMU
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select DRM_BUDDY
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select DRM_DISPLAY_DP_HELPER
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select DRM_DISPLAY_HELPER
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select DRM_EXEC
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select DRM_EXPORT_FOR_TESTS if m
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select DRM_GEM_SHMEM_HELPER
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select DRM_KUNIT_TEST_HELPERS
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select DRM_LIB_RANDOM
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select PRIME_NUMBERS
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default KUNIT_ALL_TESTS
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help
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This builds unit tests for DRM. This option is not useful for
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distributions or general kernels, but only for kernel
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developers working on DRM and associated drivers.
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For more information on KUnit and unit tests in general,
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please refer to the KUnit documentation in
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Documentation/dev-tools/kunit/.
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If in doubt, say "N".
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config DRM_KMS_HELPER
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tristate
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depends on DRM
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help
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CRTC helpers for KMS drivers.
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config DRM_PANIC
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bool "Display a user-friendly message when a kernel panic occurs"
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depends on DRM && !FRAMEBUFFER_CONSOLE
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select DRM_KMS_HELPER
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select FONT_SUPPORT
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help
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Enable a drm panic handler, which will display a user-friendly message
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when a kernel panic occurs. It's useful when using a user-space
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console instead of fbcon.
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It will only work if your graphic driver supports this feature.
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To support Hi-DPI Display, you can enable bigger fonts like
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FONT_TER16x32
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config DRM_PANIC_FOREGROUND_COLOR
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hex "Drm panic screen foreground color, in RGB"
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depends on DRM_PANIC
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default 0xffffff
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config DRM_PANIC_BACKGROUND_COLOR
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hex "Drm panic screen background color, in RGB"
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depends on DRM_PANIC
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default 0x000000
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config DRM_PANIC_DEBUG
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bool "Add a debug fs entry to trigger drm_panic"
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depends on DRM_PANIC && DEBUG_FS
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help
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Add dri/[device]/drm_panic_plane_x in the kernel debugfs, to force the
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panic handler to write the panic message to this plane scanout buffer.
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This is unsafe and should not be enabled on a production build.
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If in doubt, say "N".
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config DRM_DEBUG_DP_MST_TOPOLOGY_REFS
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bool "Enable refcount backtrace history in the DP MST helpers"
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depends on STACKTRACE_SUPPORT
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select STACKDEPOT
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depends on DRM_KMS_HELPER
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depends on DEBUG_KERNEL
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depends on EXPERT
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help
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Enables debug tracing for topology refs in DRM's DP MST helpers. A
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history of each topology reference/dereference will be printed to the
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kernel log once a port or branch device's topology refcount reaches 0.
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This has the potential to use a lot of memory and print some very
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large kernel messages. If in doubt, say "N".
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config DRM_DEBUG_MODESET_LOCK
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bool "Enable backtrace history for lock contention"
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depends on STACKTRACE_SUPPORT
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depends on DEBUG_KERNEL
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depends on EXPERT
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select STACKDEPOT
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default y if DEBUG_WW_MUTEX_SLOWPATH
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help
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Enable debug tracing of failures to gracefully handle drm modeset lock
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contention. A history of each drm modeset lock path hitting -EDEADLK
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will be saved until gracefully handled, and the backtrace will be
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printed when attempting to lock a contended lock.
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If in doubt, say "N".
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config DRM_FBDEV_EMULATION
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bool "Enable legacy fbdev support for your modesetting driver"
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depends on DRM
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select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
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default FB
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help
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Choose this option if you have a need for the legacy fbdev
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support. Note that this support also provides the linux console
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support on top of your modesetting driver.
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If in doubt, say "Y".
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config DRM_FBDEV_OVERALLOC
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int "Overallocation of the fbdev buffer"
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depends on DRM_FBDEV_EMULATION
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default 100
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help
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Defines the fbdev buffer overallocation in percent. Default
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is 100. Typical values for double buffering will be 200,
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triple buffering 300.
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config DRM_FBDEV_LEAK_PHYS_SMEM
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bool "Shamelessly allow leaking of fbdev physical address (DANGEROUS)"
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depends on DRM_FBDEV_EMULATION && EXPERT
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default n
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help
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In order to keep user-space compatibility, we want in certain
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use-cases to keep leaking the fbdev physical address to the
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user-space program handling the fbdev buffer.
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This affects, not only, Amlogic, Allwinner or Rockchip devices
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with ARM Mali GPUs using an userspace Blob.
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This option is not supported by upstream developers and should be
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removed as soon as possible and be considered as a broken and
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legacy behaviour from a modern fbdev device driver.
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Please send any bug reports when using this to your proprietary
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software vendor that requires this.
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If in doubt, say "N" or spread the word to your closed source
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library vendor.
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config DRM_LOAD_EDID_FIRMWARE
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bool "Allow to specify an EDID data set instead of probing for it"
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depends on DRM
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help
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Say Y here, if you want to use EDID data to be loaded from the
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/lib/firmware directory or one of the provided built-in
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data sets. This may be necessary, if the graphics adapter or
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monitor are unable to provide appropriate EDID data. Since this
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feature is provided as a workaround for broken hardware, the
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default case is N. Details and instructions how to build your own
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EDID data are given in Documentation/admin-guide/edid.rst.
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source "drivers/gpu/drm/display/Kconfig"
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config DRM_TTM
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tristate
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depends on DRM && MMU
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help
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GPU memory management subsystem for devices with multiple
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GPU memory types. Will be enabled automatically if a device driver
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uses it.
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config DRM_TTM_KUNIT_TEST
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tristate "KUnit tests for TTM" if !KUNIT_ALL_TESTS
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default n
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depends on DRM && KUNIT && MMU && (UML || COMPILE_TEST)
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select DRM_TTM
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select DRM_EXPORT_FOR_TESTS if m
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select DRM_KUNIT_TEST_HELPERS
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default KUNIT_ALL_TESTS
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help
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Enables unit tests for TTM, a GPU memory manager subsystem used
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to manage memory buffers. This option is mostly useful for kernel
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developers. It depends on (UML || COMPILE_TEST) since no other driver
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which uses TTM can be loaded while running the tests.
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If in doubt, say "N".
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config DRM_EXEC
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tristate
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depends on DRM
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help
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Execution context for command submissions
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config DRM_GPUVM
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tristate
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depends on DRM
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help
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GPU-VM representation providing helpers to manage a GPUs virtual
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address space
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config DRM_BUDDY
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tristate
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depends on DRM
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help
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A page based buddy allocator
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config DRM_VRAM_HELPER
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tristate
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depends on DRM
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help
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Helpers for VRAM memory management
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config DRM_TTM_HELPER
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tristate
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depends on DRM
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select DRM_TTM
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help
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Helpers for ttm-based gem objects
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config DRM_GEM_DMA_HELPER
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tristate
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depends on DRM
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select FB_DMAMEM_HELPERS if DRM_FBDEV_EMULATION
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help
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Choose this if you need the GEM DMA helper functions
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config DRM_GEM_SHMEM_HELPER
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tristate
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depends on DRM && MMU
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help
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Choose this if you need the GEM shmem helper functions
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config DRM_SUBALLOC_HELPER
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tristate
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depends on DRM
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config DRM_SCHED
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tristate
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depends on DRM
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source "drivers/gpu/drm/i2c/Kconfig"
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source "drivers/gpu/drm/arm/Kconfig"
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source "drivers/gpu/drm/radeon/Kconfig"
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source "drivers/gpu/drm/amd/amdgpu/Kconfig"
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source "drivers/gpu/drm/nouveau/Kconfig"
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source "drivers/gpu/drm/i915/Kconfig"
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source "drivers/gpu/drm/xe/Kconfig"
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source "drivers/gpu/drm/kmb/Kconfig"
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config DRM_VGEM
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tristate "Virtual GEM provider"
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depends on DRM && MMU
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select DRM_GEM_SHMEM_HELPER
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help
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Choose this option to get a virtual graphics memory manager,
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as used by Mesa's software renderer for enhanced performance.
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If M is selected the module will be called vgem.
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source "drivers/gpu/drm/vkms/Kconfig"
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source "drivers/gpu/drm/exynos/Kconfig"
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source "drivers/gpu/drm/rockchip/Kconfig"
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source "drivers/gpu/drm/vmwgfx/Kconfig"
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source "drivers/gpu/drm/gma500/Kconfig"
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source "drivers/gpu/drm/udl/Kconfig"
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source "drivers/gpu/drm/ast/Kconfig"
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source "drivers/gpu/drm/mgag200/Kconfig"
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source "drivers/gpu/drm/armada/Kconfig"
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source "drivers/gpu/drm/atmel-hlcdc/Kconfig"
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source "drivers/gpu/drm/renesas/Kconfig"
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source "drivers/gpu/drm/sun4i/Kconfig"
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source "drivers/gpu/drm/omapdrm/Kconfig"
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source "drivers/gpu/drm/tilcdc/Kconfig"
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source "drivers/gpu/drm/qxl/Kconfig"
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source "drivers/gpu/drm/virtio/Kconfig"
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source "drivers/gpu/drm/msm/Kconfig"
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source "drivers/gpu/drm/fsl-dcu/Kconfig"
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source "drivers/gpu/drm/tegra/Kconfig"
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source "drivers/gpu/drm/stm/Kconfig"
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source "drivers/gpu/drm/panel/Kconfig"
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source "drivers/gpu/drm/bridge/Kconfig"
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source "drivers/gpu/drm/sti/Kconfig"
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source "drivers/gpu/drm/imx/Kconfig"
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source "drivers/gpu/drm/ingenic/Kconfig"
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source "drivers/gpu/drm/v3d/Kconfig"
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source "drivers/gpu/drm/vc4/Kconfig"
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source "drivers/gpu/drm/loongson/Kconfig"
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source "drivers/gpu/drm/etnaviv/Kconfig"
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source "drivers/gpu/drm/hisilicon/Kconfig"
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source "drivers/gpu/drm/logicvc/Kconfig"
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source "drivers/gpu/drm/mediatek/Kconfig"
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source "drivers/gpu/drm/mxsfb/Kconfig"
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source "drivers/gpu/drm/meson/Kconfig"
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source "drivers/gpu/drm/tiny/Kconfig"
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source "drivers/gpu/drm/pl111/Kconfig"
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source "drivers/gpu/drm/tve200/Kconfig"
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source "drivers/gpu/drm/xen/Kconfig"
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source "drivers/gpu/drm/vboxvideo/Kconfig"
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source "drivers/gpu/drm/lima/Kconfig"
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source "drivers/gpu/drm/panfrost/Kconfig"
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source "drivers/gpu/drm/panthor/Kconfig"
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source "drivers/gpu/drm/aspeed/Kconfig"
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source "drivers/gpu/drm/mcde/Kconfig"
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source "drivers/gpu/drm/tidss/Kconfig"
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source "drivers/gpu/drm/xlnx/Kconfig"
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source "drivers/gpu/drm/gud/Kconfig"
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source "drivers/gpu/drm/solomon/Kconfig"
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source "drivers/gpu/drm/sprd/Kconfig"
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source "drivers/gpu/drm/imagination/Kconfig"
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config DRM_HYPERV
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tristate "DRM Support for Hyper-V synthetic video device"
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depends on DRM && PCI && MMU && HYPERV
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select DRM_KMS_HELPER
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select DRM_GEM_SHMEM_HELPER
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help
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This is a KMS driver for Hyper-V synthetic video device. Choose this
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option if you would like to enable drm driver for Hyper-V virtual
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machine. Unselect Hyper-V framebuffer driver (CONFIG_FB_HYPERV) so
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that DRM driver is used by default.
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If M is selected the module will be called hyperv_drm.
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config DRM_EXPORT_FOR_TESTS
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bool
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config DRM_LIB_RANDOM
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bool
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default n
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config DRM_PRIVACY_SCREEN
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bool
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default n
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config DRM_WERROR
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bool "Compile the drm subsystem with warnings as errors"
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depends on DRM && EXPERT
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default n
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help
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A kernel build should not cause any compiler warnings, and this
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enables the '-Werror' flag to enforce that rule in the drm subsystem.
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The drm subsystem enables more warnings than the kernel default, so
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this config option is disabled by default.
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If in doubt, say N.
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endif
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# Separate option because drm_panel_orientation_quirks.c is shared with fbdev
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config DRM_PANEL_ORIENTATION_QUIRKS
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tristate
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