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source | linux | ============================================
Framebuffer driver for Cirrus Logic chipsets
============================================
Copyright 1999 Jeff Garzik <jgarzik@pobox.com>
.. just a little something to get people going; contributors welcome!
Chip families supported:
- SD64
- Piccolo
- Picasso
- Spect... | Documentation/fb/cirrusfb.rst | null | null | null | null | null |
source | linux | ==========================
Understanding fbdev's cmap
==========================
These notes explain how X's dix layer uses fbdev's cmap structures.
- example of relevant structures in fbdev as used for a 3-bit grayscale cmap::
struct fb_var_screeninfo {
.bits_per_pixel = 8,
.grayscale = 1,
... | Documentation/fb/cmap_xfbdev.rst | null | null | null | null | null |
source | linux | ===========
Deferred IO
===========
Deferred IO is a way to delay and repurpose IO. It uses host memory as a
buffer and the MMU pagefault as a pretrigger for when to perform the device
IO. The following example may be a useful explanation of how one such setup
works:
- userspace app like Xfbdev mmaps framebuffer
- de... | Documentation/fb/deferred_io.rst | null | null | null | null | null |
source | linux | ===================================
efifb - Generic EFI platform driver
===================================
This is a generic EFI platform driver for systems with UEFI firmware. The
system must be booted via the EFI stub for this to be usable. efifb supports
both firmware with Graphics Output Protocol (GOP) displays a... | Documentation/fb/efifb.rst | null | null | null | null | null |
source | linux | ================================
Driver for EP93xx LCD controller
================================
The EP93xx LCD controller can drive both standard desktop monitors and
embedded LCD displays. If you have a standard desktop monitor then you
can use the standard Linux video mode database. In your board file::
static ... | Documentation/fb/ep93xx-fb.rst | null | null | null | null | null |
source | linux | =======================
The Framebuffer Console
=======================
The framebuffer console (fbcon), as its name implies, is a text
console running on top of the framebuffer device. It has the functionality of
any standard text console driver, such as the VGA console, with the added
features that can be attributed... | Documentation/fb/fbcon.rst | null | null | null | null | null |
source | linux | =======================
The Frame Buffer Device
=======================
Last revised: May 10, 2001
0. Introduction
---------------
The frame buffer device provides an abstraction for the graphics hardware. It
represents the frame buffer of some video hardware and allows application
software to access the graphics h... | Documentation/fb/framebuffer.rst | null | null | null | null | null |
source | linux | =======================================
gxfb - AMD Geode GX2 framebuffer driver
=======================================
This is a graphics framebuffer driver for AMD Geode GX2 based processors.
Advantages:
* No need to use AMD's VSA code (or other VESA emulation layer) in the
BIOS.
* It provides a nice large co... | Documentation/fb/gxfb.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
============
Frame Buffer
============
General information
===================
.. toctree::
:maxdepth: 1
api
cmap_xfbdev
deferred_io
fbcon
framebuffer
internals
modedb
Driver documentation
====================
.. toctree::
:maxdepth: 1
arkfb
at... | Documentation/fb/index.rst | null | null | null | null | null |
source | linux | ================================
Intel 810/815 Framebuffer driver
================================
Tony Daplas <adaplas@pol.net>
http://i810fb.sourceforge.net
March 17, 2002
First Released: July 2001
Last Update: September 12, 2005
A. Introduction
===============
This is a framebuffer driver for various Intel... | Documentation/fb/intel810.rst | null | null | null | null | null |
source | linux | =============================
Frame Buffer device internals
=============================
This is a first start for some documentation about frame buffer device
internals.
Authors:
- Geert Uytterhoeven <geert@linux-m68k.org>, 21 July 1998
- James Simmons <jsimmons@user.sf.net>, Nov 26 2002
-------------------------... | Documentation/fb/internals.rst | null | null | null | null | null |
source | linux | ======================================
lxfb - AMD Geode LX framebuffer driver
======================================
This is a graphics framebuffer driver for AMD Geode LX based processors.
Advantages:
* No need to use AMD's VSA code (or other VESA emulation layer) in the
BIOS.
* It provides a nice large consol... | Documentation/fb/lxfb.rst | null | null | null | null | null |
source | linux | ================================================
matroxfb - Framebuffer driver for Matrox devices
================================================
This is a driver for a graphic framebuffer for Matrox devices on
Alpha, Intel and PPC boxes.
Advantages:
* It provides a nice large console (128 cols + 48 lines with 102... | Documentation/fb/matroxfb.rst | null | null | null | null | null |
source | linux | ===========
Metronomefb
===========
Maintained by Jaya Kumar <jayakumar.lkml.gmail.com>
Last revised: Mar 10, 2008
Metronomefb is a driver for the Metronome display controller. The controller
is from E-Ink Corporation. It is intended to be used to drive the E-Ink
Vizplex display media. E-Ink hosts some details of th... | Documentation/fb/metronomefb.rst | null | null | null | null | null |
source | linux | =================================
modedb default video mode support
=================================
Currently all frame buffer device drivers have their own video mode databases,
which is a mess and a waste of resources. The main idea of modedb is to have
- one routine to probe for video modes, which can be used... | Documentation/fb/modedb.rst | null | null | null | null | null |
source | linux | ===============================================
pvr2fb - PowerVR 2 graphics frame buffer driver
===============================================
This is a driver for PowerVR 2 based graphics frame buffers, such as the
one found in the Dreamcast.
Advantages:
* It provides a nice large console (128 cols + 48 lines wit... | Documentation/fb/pvr2fb.rst | null | null | null | null | null |
source | linux | ================================
Driver for PXA25x LCD controller
================================
The driver supports the following options, either via
options=<OPTIONS> when modular or video=pxafb:<OPTIONS> when built in.
For example::
modprobe pxafb options=vmem:2M,mode:640x480-8,passive
or on the kernel comman... | Documentation/fb/pxafb.rst | null | null | null | null | null |
source | linux | ===========================================
s3fb - fbdev driver for S3 Trio/Virge chips
===========================================
Supported Hardware
==================
S3 Trio32
S3 Trio64 (and variants V+, UV+, V2/DX, V2/GX)
S3 Virge (and variants VX, DX, GX and GX2+)
S3 Plato/PX (completely untested)
S3 Au... | Documentation/fb/s3fb.rst | null | null | null | null | null |
source | linux | =================================================
sa1100fb - SA-1100 LCD graphic framebuffer driver
=================================================
This is a driver for a graphic framebuffer for the SA-1100 LCD
controller.
Configuration
==============
For most common passive displays, giving the option::
video=... | Documentation/fb/sa1100fb.rst | null | null | null | null | null |
source | linux | ================================================
SH7760/SH7763 integrated LCDC Framebuffer driver
================================================
0. Overview
-----------
The SH7760/SH7763 have an integrated LCD Display controller (LCDC) which
supports (in theory) resolutions ranging from 1x1 to 1024x1024,
with color ... | Documentation/fb/sh7760fb.rst | null | null | null | null | null |
source | linux | =====================================
sisfb - SiS framebuffer device driver
=====================================
sisfb is a framebuffer device driver for SiS (Silicon Integrated Systems)
graphics chips. Supported are:
- SiS 300 series: SiS 300/305, 540, 630(S), 730(S)
- SiS 315 series: SiS 315/H/PRO, 55x, (M)65x, 74... | Documentation/fb/sisfb.rst | null | null | null | null | null |
source | linux | =======
sm501fb
=======
Configuration:
You can pass the following kernel command line options to sm501
videoframebuffer::
sm501fb.bpp= SM501 Display driver:
Specify bits-per-pixel if not specified by 'mode'
sm501fb.mode= SM501 Display driver:
Specify resolution as
"<xres>x<yres>[-<bpp>][@<refresh>]" | Documentation/fb/sm501.rst | null | null | null | null | null |
source | linux | ==========================================================
sm712fb - Silicon Motion SM712 graphics framebuffer driver
==========================================================
This is a graphics framebuffer driver for Silicon Motion SM712 based processors.
How to use it?
==============
Switching modes is done using... | Documentation/fb/sm712fb.rst | null | null | null | null | null |
source | linux | =====
sstfb
=====
Introduction
============
This is a frame buffer device driver for 3dfx' Voodoo Graphics
(aka voodoo 1, aka sst1) and Voodoo² (aka Voodoo 2, aka CVG) based
video boards. It's highly experimental code, but is guaranteed to work
on my computer, with my "Maxi Gamer 3D" and "Maxi Gamer 3d²" boards,
and ... | Documentation/fb/sstfb.rst | null | null | null | null | null |
source | linux | =======================================
tgafb - TGA graphics framebuffer driver
=======================================
This is a driver for DECChip 21030 based graphics framebuffers, a.k.a. TGA
cards, which are usually found in older Digital Alpha systems. The
following models are supported:
- ZLxP-E1 (8bpp, 2 MB VR... | Documentation/fb/tgafb.rst | null | null | null | null | null |
source | linux | =========
Tridentfb
=========
Tridentfb is a framebuffer driver for some Trident chip based cards.
The following list of chips is thought to be supported although not all are
tested:
those from the TGUI series 9440/96XX and with Cyber in their names
those from the Image series and with Cyber in their names
those wit... | Documentation/fb/tridentfb.rst | null | null | null | null | null |
source | linux | ==================================
udlfb - DisplayLink USB 2.0 driver
==================================
This is a driver for DisplayLink USB 2.0 era graphics chips.
DisplayLink chips provide simple hline/blit operations with some compression,
pairing that with a hardware framebuffer (16MB) on the other end of the
US... | Documentation/fb/udlfb.rst | null | null | null | null | null |
source | linux | ==========================================================
uvesafb - A Generic Driver for VBE2+ compliant video cards
==========================================================
1. Requirements
---------------
uvesafb should work with any video card that has a Video BIOS compliant
with the VBE 2.0 standard.
Unlike ot... | Documentation/fb/uvesafb.rst | null | null | null | null | null |
source | linux | ===========================================
vesafb - Generic graphic framebuffer driver
===========================================
This is a generic driver for a graphic framebuffer on intel boxes.
The idea is simple: Turn on graphics mode at boot time with the help
of the BIOS, and use this as framebuffer device /... | Documentation/fb/vesafb.rst | null | null | null | null | null |
source | linux | =======================================================
VIA Integration Graphic Chip Console Framebuffer Driver
=======================================================
Platform
--------
The console framebuffer driver is for graphics chips of
VIA UniChrome Family
(CLE266, PM800 / CN400 / CN300,
P4M800CE... | Documentation/fb/viafb.rst | null | null | null | null | null |
source | linux | ===============================================================
vt8623fb - fbdev driver for graphics core in VIA VT8623 chipset
===============================================================
Supported Hardware
==================
VIA VT8623 [CLE266] chipset and its graphics core
(known as CastleRock or Unichrome)
I... | Documentation/fb/vt8623fb.rst | null | null | null | null | null |
source | linux | For generic kernel features that need architecture support, the
arch-support.txt file in each feature directory shows the arch
support matrix, for all upstream Linux architectures.
The meaning of entries in the tables is:
| ok | # feature supported by the architecture
|TODO| # feature not yet supported by t... | Documentation/features/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: cBPF-JIT
# Kconfig: HAVE_CBPF_JIT
# description: arch supports cBPF JIT optimizations
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| a... | Documentation/features/core/cBPF-JIT/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: eBPF-JIT
# Kconfig: HAVE_EBPF_JIT
# description: arch supports eBPF JIT optimizations
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| a... | Documentation/features/core/eBPF-JIT/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: generic-idle-thread
# Kconfig: GENERIC_SMP_IDLE_THREAD
# description: arch makes use of the generic SMP idle thread facility
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
... | Documentation/features/core/generic-idle-thread/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: jump-labels
# Kconfig: HAVE_ARCH_JUMP_LABEL
# description: arch supports live patched, high efficiency branches
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| a... | Documentation/features/core/jump-labels/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: mseal-system-mappings
# Kconfig: ARCH_SUPPORTS_MSEAL_SYSTEM_MAPPINGS
# description: arch supports mseal system mappings
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | N/A |
| ... | Documentation/features/core/mseal_sys_mappings/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: thread-info-in-task
# Kconfig: THREAD_INFO_IN_TASK
# description: arch makes use of the core kernel facility to embed thread_info in task_struct
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| ... | Documentation/features/core/thread-info-in-task/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: tracehook
# Kconfig: HAVE_ARCH_TRACEHOOK
# description: arch supports tracehook (ptrace) register handling APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| a... | Documentation/features/core/tracehook/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: KASAN
# Kconfig: HAVE_ARCH_KASAN
# description: arch supports the KASAN runtime memory checker
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
... | Documentation/features/debug/KASAN/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: debug-vm-pgtable
# Kconfig: ARCH_HAS_DEBUG_VM_PGTABLE
# description: arch supports pgtable tests for semantics compliance
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
|... | Documentation/features/debug/debug-vm-pgtable/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: gcov-profile-all
# Kconfig: ARCH_HAS_GCOV_PROFILE_ALL
# description: arch supports whole-kernel GCOV code coverage profiling
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
... | Documentation/features/debug/gcov-profile-all/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kcov
# Kconfig: ARCH_HAS_KCOV
# description: arch supports kcov for coverage-guided fuzzing
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| ... | Documentation/features/debug/kcov/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kgdb
# Kconfig: HAVE_ARCH_KGDB
# description: arch supports the kGDB kernel debugger
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| ar... | Documentation/features/debug/kgdb/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kmemleak
# Kconfig: HAVE_DEBUG_KMEMLEAK
# description: arch supports the kernel memory leak detector
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok ... | Documentation/features/debug/kmemleak/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kprobes-on-ftrace
# Kconfig: HAVE_KPROBES_ON_FTRACE
# description: arch supports combined kprobes and ftrace live patching
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
... | Documentation/features/debug/kprobes-on-ftrace/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kprobes
# Kconfig: HAVE_KPROBES
# description: arch supports live patched kernel probe
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| ... | Documentation/features/debug/kprobes/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kretprobes
# Kconfig: HAVE_KRETPROBES
# description: arch supports kernel function-return probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
... | Documentation/features/debug/kretprobes/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: optprobes
# Kconfig: HAVE_OPTPROBES
# description: arch supports live patched optprobes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| ... | Documentation/features/debug/optprobes/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: stackprotector
# Kconfig: HAVE_STACKPROTECTOR
# description: arch supports compiler driven stack overflow protection
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| ... | Documentation/features/debug/stackprotector/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: uprobes
# Kconfig: ARCH_SUPPORTS_UPROBES
# description: arch supports live patched user probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
... | Documentation/features/debug/uprobes/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: user-ret-profiler
# Kconfig: HAVE_USER_RETURN_NOTIFIER
# description: arch supports user-space return from system call profiler
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |... | Documentation/features/debug/user-ret-profiler/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: dma-contiguous
# Kconfig: HAVE_DMA_CONTIGUOUS
# description: arch supports the DMA CMA (continuous memory allocator)
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| ... | Documentation/features/io/dma-contiguous/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: cmpxchg-local
# Kconfig: HAVE_CMPXCHG_LOCAL
# description: arch supports the this_cpu_cmpxchg() API
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |... | Documentation/features/locking/cmpxchg-local/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: lockdep
# Kconfig: LOCKDEP_SUPPORT
# description: arch supports the runtime locking correctness debug facility
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| ar... | Documentation/features/locking/lockdep/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: queued-rwlocks
# Kconfig: ARCH_USE_QUEUED_RWLOCKS
# description: arch supports queued rwlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
|... | Documentation/features/locking/queued-rwlocks/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: queued-spinlocks
# Kconfig: ARCH_USE_QUEUED_SPINLOCKS
# description: arch supports queued spinlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |... | Documentation/features/locking/queued-spinlocks/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: kprobes-event
# Kconfig: HAVE_REGS_AND_STACK_ACCESS_API
# description: arch supports kprobes with perf events
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm... | Documentation/features/perf/kprobes-event/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: perf-regs
# Kconfig: HAVE_PERF_REGS
# description: arch supports perf events register access
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| ... | Documentation/features/perf/perf-regs/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: perf-stackdump
# Kconfig: HAVE_PERF_USER_STACK_DUMP
# description: arch supports perf events stack dumps
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ... | Documentation/features/perf/perf-stackdump/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: membarrier-sync-core
# Kconfig: ARCH_HAS_MEMBARRIER_SYNC_CORE
# description: arch supports core serializing membarrier
#
# Architecture requirements
#
# * arm/arm64/powerpc/s390
#
# Rely on implicit context synchronization as a result of exception return
# when returni... | Documentation/features/sched/membarrier-sync-core/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: numa-balancing
# Kconfig: ARCH_SUPPORTS_NUMA_BALANCING
# description: arch supports NUMA balancing
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
... | Documentation/features/sched/numa-balancing/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: seccomp-filter
# Kconfig: HAVE_ARCH_SECCOMP_FILTER
# description: arch supports seccomp filters
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
... | Documentation/features/seccomp/seccomp-filter/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: arch-tick-broadcast
# Kconfig: ARCH_HAS_TICK_BROADCAST
# description: arch provides tick_broadcast()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok ... | Documentation/features/time/arch-tick-broadcast/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: clockevents
# Kconfig: !LEGACY_TIMER_TICK
# description: arch support generic clock events
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | TODO |
| ... | Documentation/features/time/clockevents/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: user-context-tracking
# Kconfig: HAVE_CONTEXT_TRACKING_USER
# description: arch supports user context tracking for NO_HZ_FULL
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
... | Documentation/features/time/context-tracking/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: irq-time-acct
# Kconfig: HAVE_IRQ_TIME_ACCOUNTING
# description: arch supports precise IRQ time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | .. |
| arc: | TODO |
| arm: |... | Documentation/features/time/irq-time-acct/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: virt-cpuacct
# Kconfig: HAVE_VIRT_CPU_ACCOUNTING
# description: arch supports precise virtual CPU time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| ... | Documentation/features/time/virt-cpuacct/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: ELF-ASLR
# Kconfig: ARCH_HAS_ELF_RANDOMIZE
# Kconfig: ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
# description: arch randomizes the stack, heap and binary images of ELF binaries
#
-----------------------
| arch |status|
--------------------... | Documentation/features/vm/ELF-ASLR/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: THP
# Kconfig: HAVE_ARCH_TRANSPARENT_HUGEPAGE
# description: arch supports transparent hugepages
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
... | Documentation/features/vm/THP/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: batch-unmap-tlb-flush
# Kconfig: ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
# description: arch supports deferral of TLB flush until multiple pages are unmapped
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
... | Documentation/features/vm/TLB/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: huge-vmap
# Kconfig: HAVE_ARCH_HUGE_VMAP
# description: arch supports the arch_vmap_pud_supported() and arch_vmap_pmd_supported() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc... | Documentation/features/vm/huge-vmap/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: ioremap_prot
# Kconfig: HAVE_IOREMAP_PROT
# description: arch has ioremap_prot()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | TODO |
| arm64:... | Documentation/features/vm/ioremap_prot/arch-support.txt | null | null | null | null | null |
source | linux | #
# Feature name: pte_special
# Kconfig: ARCH_HAS_PTE_SPECIAL
# description: arch supports the pte_special()/pte_mkspecial() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| ... | Documentation/features/vm/pte_special/arch-support.txt | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=======================================
v9fs: Plan 9 Resource Sharing for Linux
=======================================
About
=====
v9fs is a Unix implementation of the Plan 9 9p remote filesystem protocol.
This software was originally developed by Ron Minnich <rminnich@sandia.go... | Documentation/filesystems/9p.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
===============================
Acorn Disc Filing System - ADFS
===============================
Filesystems supported by ADFS
-----------------------------
The ADFS module supports the following Filecore formats which have:
- new maps
- new directories or big directories
In term... | Documentation/filesystems/adfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=============================
Overview of Amiga Filesystems
=============================
Not all varieties of the Amiga filesystems are supported for reading and
writing. The Amiga currently knows six different filesystems:
============== =========================================... | Documentation/filesystems/affs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
====================
kAFS: AFS FILESYSTEM
====================
.. Contents:
- Overview.
- Usage.
- Mountpoints.
- Dynamic root.
- Proc filesystem.
- The cell database.
- Security.
- The @sys substitution.
Overview
========
This filesystem provides a fairly simple secure... | Documentation/filesystems/afs.rst | null | null | null | null | null |
source | linux | =============================
Linux Filesystems API summary
=============================
This section contains API-level documentation, mostly taken from the source
code itself.
The Linux VFS
=============
The Filesystem types
--------------------
.. kernel-doc:: include/linux/fs.h
:internal:
The Directory Cac... | Documentation/filesystems/api-summary.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
====================================================================
Miscellaneous Device control operations for the autofs kernel module
====================================================================
The problem
===========
There is a problem with active restarts in autofs ... | Documentation/filesystems/autofs-mount-control.rst | null | null | null | null | null |
source | linux | =====================
autofs - how it works
=====================
Purpose
=======
The goal of autofs is to provide on-demand mounting and race free
automatic unmounting of various other filesystems. This provides two
key advantages:
1. There is no need to delay boot until all filesystems that
might be needed are... | Documentation/filesystems/autofs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=================
Automount Support
=================
Support is available for filesystems that wish to do automounting
support (such as kAFS which can be found in fs/afs/ and NFS in
fs/nfs/). This facility includes allowing in-kernel mounts to be
performed and mountpoint degradat... | Documentation/filesystems/automount-support.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=========================
BeOS filesystem for Linux
=========================
Document last updated: Dec 6, 2001
Warning
=======
Make sure you understand that this is alpha software. This means that the
implementation is neither complete nor well-tested.
I DISCLAIM ALL RESPONSIB... | Documentation/filesystems/befs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
========================
BFS Filesystem for Linux
========================
The BFS filesystem is used by SCO UnixWare OS for the /stand slice, which
usually contains the kernel image and a few other files required for the
boot process.
In order to access /stand partition under Lin... | Documentation/filesystems/bfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=====
BTRFS
=====
Btrfs is a copy on write filesystem for Linux aimed at implementing advanced
features while focusing on fault tolerance, repair and easy administration.
Jointly developed by several companies, licensed under the GPL and open for
contribution from anyone.
The main... | Documentation/filesystems/btrfs.rst | null | null | null | null | null |
source | linux | Buffer Heads
============
Linux uses buffer heads to maintain state about individual filesystem blocks.
Buffer heads are deprecated and new filesystems should use iomap instead.
Functions
---------
.. kernel-doc:: include/linux/buffer_head.h
.. kernel-doc:: fs/buffer.c
:export: | Documentation/filesystems/buffer.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
============================
Ceph Distributed File System
============================
Ceph is a distributed network file system designed to provide good
performance, reliability, and scalability.
Basic features include:
* POSIX semantics
* Seamless scaling from 1 to many thous... | Documentation/filesystems/ceph.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
===========================
Coda Kernel-Venus Interface
===========================
.. Note::
This is one of the technical documents describing a component of
Coda -- this document describes the client kernel-Venus interface.
For more information:
http://www.coda.cs.cmu.... | Documentation/filesystems/coda.rst | null | null | null | null | null |
source | linux | =======================================================
Configfs - Userspace-driven Kernel Object Configuration
=======================================================
Joel Becker <joel.becker@oracle.com>
Updated: 31 March 2005
Copyright (c) 2005 Oracle Corporation,
Joel Becker <joel.becker@oracle.com>
What is co... | Documentation/filesystems/configfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
===========================================
Cramfs - cram a filesystem onto a small ROM
===========================================
cramfs is designed to be simple and small, and to compress things well.
It uses the zlib routines to compress a file one page at a time, and
allows r... | Documentation/filesystems/cramfs.rst | null | null | null | null | null |
source | linux | =======================
Direct Access for files
=======================
Motivation
----------
The page cache is usually used to buffer reads and writes to files.
It is also used to provide the pages which are mapped into userspace
by a call to mmap.
For block devices that are memory-like, the page cache pages would ... | Documentation/filesystems/dax.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
.. include:: <isonum.txt>
=======
DebugFS
=======
Copyright |copy| 2009 Jonathan Corbet <corbet@lwn.net>
Debugfs exists as a simple way for kernel developers to make information
available to user space. Unlike /proc, which is only meant for information
about a process, or sysfs, ... | Documentation/filesystems/debugfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=====================
The Devpts Filesystem
=====================
Each mount of the devpts filesystem is now distinct such that ptys
and their indices allocated in one mount are independent from ptys
and their indices in all other mounts.
All mounts of the devpts filesystem now cr... | Documentation/filesystems/devpts.rst | null | null | null | null | null |
source | linux | =================
Directory Locking
=================
Locking scheme used for directory operations is based on two
kinds of locks - per-inode (->i_rwsem) and per-filesystem
(->s_vfs_rename_mutex).
When taking the i_rwsem on multiple non-directory objects, we
always acquire the locks in order by increasing address. ... | Documentation/filesystems/directory-locking.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
.. include:: <isonum.txt>
=====
DLMFS
=====
A minimal DLM userspace interface implemented via a virtual file
system.
dlmfs is built with OCFS2 as it requires most of its infrastructure.
:Project web page: http://ocfs2.wiki.kernel.org
:Tools web page: https://github.com/ma... | Documentation/filesystems/dlmfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
============================
Linux Directory Notification
============================
Stephen Rothwell <sfr@canb.auug.org.au>
The intention of directory notification is to allow user applications
to be notified when a directory, or any of the files in it, are changed.
The bas... | Documentation/filesystems/dnotify.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
======================================================
eCryptfs: A stacked cryptographic filesystem for Linux
======================================================
eCryptfs is free software. Please see the file COPYING for details.
For documentation, please see the files in the do... | Documentation/filesystems/ecryptfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
=======================================
efivarfs - a (U)EFI variable filesystem
=======================================
The efivarfs filesystem was created to address the shortcomings of
using entries in sysfs to maintain EFI variables. The old sysfs EFI
variables code only support... | Documentation/filesystems/efivarfs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
======================================
EROFS - Enhanced Read-Only File System
======================================
Overview
========
EROFS filesystem stands for Enhanced Read-Only File System. It aims to form a
generic read-only filesystem solution for various read-only use cas... | Documentation/filesystems/erofs.rst | null | null | null | null | null |
source | linux | .. SPDX-License-Identifier: GPL-2.0
==============================
The Second Extended Filesystem
==============================
ext2 was originally released in January 1993. Written by R\'emy Card,
Theodore Ts'o and Stephen Tweedie, it was a major rewrite of the
Extended Filesystem. It is currently still (April 2... | Documentation/filesystems/ext2.rst | null | null | null | null | null |
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