Commit 8d13be53 authored by Jonathan Corbet's avatar Jonathan Corbet

Merge branch 'core/documentation' of...

Merge branch 'core/documentation' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into docs-next

A week late but I managed to complete it all and moved it into Git, for better
structure and easy pulling.

Changes relative to the last submission:

  - Added higher level subsystem directories to collect features by
    subsystem:

      triton:~/tip> ls Documentation/features/
      arch-support.txt  core  debug  io  lib  list-arch.sh  locking  perf  sched  seccomp  time  vm

    each subsystem directory contains the feature directories. For example locking
    has:

      triton:~/tip> ls Documentation/features/locking/
      cmpxchg-local  lockdep  queued-rwlocks  queued-spinlocks  rwsem-optimized

    It's all pretty straightforward to navigate. Advantages are better
    visualization, plus git log is able to list changes per subsystem.

  - Prettified the visualization some more.

  - Improved/corrected the support matrices based on feedback to earlier submissions.

  - Updated the support matrices to today's linux-next, so that by the time this
    shows up in upstream in the next merge window it's really recent.
    Most notably there's a new architecture in linux-next (h8300).

This structure should address all feedback that I got and should minimize the
maintenance overhead (chance of conflicts).
parents d4a4f75c 669f6f96
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 the architecture
| .. | # feature cannot be supported by the hardware
#
# Feature name: BPF-JIT
# Kconfig: HAVE_BPF_JIT
# description: arch supports BPF JIT optimizations
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# 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 |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | ok |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | ok |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: jump-labels
# Kconfig: HAVE_ARCH_JUMP_LABEL
# description: arch supports live patched, high efficiency branches
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: tracehook
# Kconfig: HAVE_ARCH_TRACEHOOK
# description: arch supports tracehook (ptrace) register handling APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | ok |
| c6x: | ok |
| cris: | TODO |
| frv: | ok |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | ok |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: KASAN
# Kconfig: HAVE_ARCH_KASAN
# description: arch supports the KASAN runtime memory checker
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# 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 |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | ok |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: kgdb
# Kconfig: HAVE_ARCH_KGDB
# description: arch supports the kGDB kernel debugger
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | ok |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | ok |
| mips: | ok |
| mn10300: | ok |
| nios2: | ok |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# 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 |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: kprobes
# Kconfig: HAVE_KPROBES
# description: arch supports live patched kernel probe
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | TODO |
| avr32: | ok |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: kretprobes
# Kconfig: HAVE_KRETPROBES
# description: arch supports kernel function-return probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: optprobes
# Kconfig: HAVE_OPTPROBES
# description: arch supports live patched optprobes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: stackprotector
# Kconfig: HAVE_CC_STACKPROTECTOR
# description: arch supports compiler driven stack overflow protection
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | ok |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: uprobes
# Kconfig: ARCH_SUPPORTS_UPROBES
# description: arch supports live patched user probes
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# 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 |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: dma-api-debug
# Kconfig: HAVE_DMA_API_DEBUG
# description: arch supports DMA debug facilities
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | ok |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | ok |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: dma-contiguous
# Kconfig: HAVE_DMA_CONTIGUOUS
# description: arch supports the DMA CMA (continuous memory allocator)
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: dma_map_attrs
# Kconfig: HAVE_DMA_ATTRS
# description: arch provides dma_*map*_attrs() APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | ok |
| hexagon: | ok |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | ok |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | ok |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: sg-chain
# Kconfig: ARCH_HAS_SG_CHAIN
# description: arch supports chained scatter-gather lists
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: strncasecmp
# Kconfig: __HAVE_ARCH_STRNCASECMP
# description: arch provides an optimized strncasecmp() function
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | TODO |
| xtensa: | TODO |
-----------------------
#
# Small script that visualizes the kernel feature support status
# of an architecture.
#
# (If no arguments are given then it will print the host architecture's status.)
#
ARCH=${1:-$(arch | sed 's/x86_64/x86/' | sed 's/i386/x86/')}
cd $(dirname $0)
echo "#"
echo "# Kernel feature support matrix of the '$ARCH' architecture:"
echo "#"
for F in */*/arch-support.txt; do
SUBSYS=$(echo $F | cut -d/ -f1)
N=$(grep -h "^# Feature name:" $F | cut -c25-)
C=$(grep -h "^# Kconfig:" $F | cut -c25-)
D=$(grep -h "^# description:" $F | cut -c25-)
S=$(grep -hw $ARCH $F | cut -d\| -f3)
printf "%10s/%-22s:%s| %35s # %s\n" "$SUBSYS" "$N" "$S" "$C" "$D"
done
#
# Feature name: cmpxchg-local
# Kconfig: HAVE_CMPXCHG_LOCAL
# description: arch supports the this_cpu_cmpxchg() API
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: lockdep
# Kconfig: LOCKDEP_SUPPORT
# description: arch supports the runtime locking correctness debug facility
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| avr32: | ok |
| blackfin: | ok |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | ok |
| microblaze: | ok |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | ok |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | ok |
| unicore32: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: queued-rwlocks
# Kconfig: ARCH_USE_QUEUED_RWLOCKS
# description: arch supports queued rwlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: queued-spinlocks
# Kconfig: ARCH_USE_QUEUED_SPINLOCKS
# description: arch supports queued spinlocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: rwsem-optimized
# Kconfig: Optimized asm/rwsem.h
# description: arch provides optimized rwsem APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: kprobes-event
# Kconfig: HAVE_REGS_AND_STACK_ACCESS_API
# description: arch supports kprobes with perf events
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | ok |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | TODO |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: perf-regs
# Kconfig: HAVE_PERF_REGS
# description: arch supports perf events register access
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: perf-stackdump
# Kconfig: HAVE_PERF_USER_STACK_DUMP
# description: arch supports perf events stack dumps
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: numa-balancing
# Kconfig: ARCH_SUPPORTS_NUMA_BALANCING
# description: arch supports NUMA balancing
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
| arm64: | .. |
| avr32: | .. |
| blackfin: | .. |
| c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | TODO |
| m32r: | .. |
| m68k: | .. |
| metag: | .. |
| microblaze: | .. |
| mips: | TODO |
| mn10300: | .. |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| powerpc: | ok |
| s390: | .. |
| score: | .. |
| sh: | .. |
| sparc: | TODO |
| tile: | TODO |
| um: | .. |
| unicore32: | .. |
| x86: | ok |
| xtensa: | .. |
-----------------------
#
# Feature name: seccomp-filter
# Kconfig: HAVE_ARCH_SECCOMP_FILTER
# description: arch supports seccomp filters
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: arch-tick-broadcast
# Kconfig: ARCH_HAS_TICK_BROADCAST
# description: arch provides tick_broadcast()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | TODO |
| xtensa: | TODO |
-----------------------
#
# Feature name: clockevents
# Kconfig: GENERIC_CLOCKEVENTS
# description: arch support generic clock events
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| avr32: | ok |
| blackfin: | ok |
| c6x: | ok |
| cris: | ok |
| frv: | TODO |
| h8300: | ok |
| hexagon: | ok |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | ok |
| metag: | ok |
| microblaze: | ok |
| mips: | ok |
| mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | ok |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | ok |
| unicore32: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: context-tracking
# Kconfig: HAVE_CONTEXT_TRACKING
# description: arch supports context tracking for NO_HZ_FULL
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: irq-time-acct
# Kconfig: HAVE_IRQ_TIME_ACCOUNTING
# description: arch supports precise IRQ time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | .. |
| arc: | TODO |
| arm: | ok |
| arm64: | .. |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | .. |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | .. |
| powerpc: | .. |
| s390: | .. |
| score: | TODO |
| sh: | TODO |
| sparc: | .. |
| tile: | .. |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: modern-timekeeping
# Kconfig: !ARCH_USES_GETTIMEOFFSET
# description: arch does not use arch_gettimeoffset() anymore
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | ok |
| arm: | TODO |
| arm64: | ok |
| avr32: | ok |
| blackfin: | TODO |
| c6x: | ok |
| cris: | TODO |
| frv: | ok |
| h8300: | ok |
| hexagon: | ok |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | ok |
| microblaze: | ok |
| mips: | ok |
| mn10300: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| s390: | ok |
| score: | ok |
| sh: | ok |
| sparc: | ok |
| tile: | ok |
| um: | ok |
| unicore32: | ok |
| x86: | ok |
| xtensa: | ok |
-----------------------
#
# Feature name: virt-cpuacct
# Kconfig: HAVE_VIRT_CPU_ACCOUNTING
# description: arch supports precise virtual CPU time accounting
#
-----------------------
| arch |status|
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | ok |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: ELF-ASLR
# Kconfig: ARCH_HAS_ELF_RANDOMIZE
# description: arch randomizes the stack, heap and binary images of ELF binaries
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: PG_uncached
# Kconfig: ARCH_USES_PG_UNCACHED
# description: arch supports the PG_uncached page flag
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | ok |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: THP
# Kconfig: HAVE_ARCH_TRANSPARENT_HUGEPAGE
# description: arch supports transparent hugepages
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | .. |
| arm: | ok |
| arm64: | ok |
| avr32: | .. |
| blackfin: | .. |
| c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | TODO |
| m32r: | .. |
| m68k: | .. |
| metag: | .. |
| microblaze: | .. |
| mips: | ok |
| mn10300: | .. |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | .. |
| sh: | .. |
| sparc: | ok |
| tile: | TODO |
| um: | .. |
| unicore32: | .. |
| x86: | ok |
| xtensa: | .. |
-----------------------
#
# Feature name: huge-vmap
# Kconfig: HAVE_ARCH_HUGE_VMAP
# description: arch supports the ioremap_pud_enabled() and ioremap_pmd_enabled() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: ioremap_prot
# Kconfig: HAVE_IOREMAP_PROT
# description: arch has ioremap_prot()
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | TODO |
| arm64: | TODO |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| score: | TODO |
| sh: | ok |
| sparc: | TODO |
| tile: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: numa-memblock
# Kconfig: HAVE_MEMBLOCK_NODE_MAP
# description: arch supports NUMA aware memblocks
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
| arm64: | .. |
| avr32: | .. |
| blackfin: | .. |
| c6x: | .. |
| cris: | .. |
| frv: | .. |
| h8300: | .. |
| hexagon: | .. |
| ia64: | ok |
| m32r: | TODO |
| m68k: | .. |
| metag: | ok |
| microblaze: | ok |
| mips: | ok |
| mn10300: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| powerpc: | ok |
| s390: | ok |
| score: | ok |
| sh: | ok |
| sparc: | ok |
| tile: | TODO |
| um: | .. |
| unicore32: | .. |
| x86: | ok |
| xtensa: | .. |
-----------------------
#
# Feature name: pmdp_splitting_flush
# Kconfig: __HAVE_ARCH_PMDP_SPLITTING_FLUSH
# description: arch supports the pmdp_splitting_flush() VM API
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | ok |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | TODO |
| sparc: | TODO |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
#
# Feature name: pte_special
# Kconfig: __HAVE_ARCH_PTE_SPECIAL
# description: arch supports the pte_special()/pte_mkspecial() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | ok |
| avr32: | TODO |
| blackfin: | TODO |
| c6x: | TODO |
| cris: | TODO |
| frv: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m32r: | TODO |
| m68k: | TODO |
| metag: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mn10300: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| score: | TODO |
| sh: | ok |
| sparc: | ok |
| tile: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
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