Commit 4ffd41bc authored by Jonathan Corbet's avatar Jonathan Corbet

Merge branch 'features' into docs-next

Andrea Parri dice:

  This series provides the script 'features-refresh.sh', which operates on
  the arch support status files, and it applies this script to refresh the
  status files in place; previous discussions about this series are at [1].

  [1] http://lkml.kernel.org/r/1523205027-31786-1-git-send-email-andrea.parri@amarulasolutions.com
      http://lkml.kernel.org/r/1522774551-9503-1-git-send-email-andrea.parri@amarulasolutions.com
      http://lkml.kernel.org/r/20180328122211.GA25420@andrea
parents f6dbf65b 2bef69a3
#
# Feature name: strncasecmp
# Kconfig: __HAVE_ARCH_STRNCASECMP
# description: arch provides an optimized strncasecmp() function
# Feature name: cBPF-JIT
# Kconfig: HAVE_CBPF_JIT
# description: arch supports cBPF JIT optimizations
#
-----------------------
| arch |status|
......@@ -16,14 +16,16 @@
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | TODO |
......
#
# Feature name: BPF-JIT
# Kconfig: HAVE_BPF_JIT
# description: arch supports BPF JIT optimizations
# Feature name: eBPF-JIT
# Kconfig: HAVE_EBPF_JIT
# description: arch supports eBPF JIT optimizations
#
-----------------------
| arch |status|
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,15 +17,17 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok | 64-bit only
| x86: | ok |
| xtensa: | ok |
-----------------------
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
......
......@@ -11,16 +11,18 @@
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| h8300: | ok |
| hexagon: | ok |
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nds32: | TODO |
| nios2: | ok |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | ok |
| sparc: | TODO |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
......@@ -17,13 +17,15 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,11 +17,13 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| s390: | TODO |
| riscv: | ok |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nds32: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -9,21 +9,23 @@
| alpha: | TODO |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
......
......@@ -16,14 +16,16 @@
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| openrisc: | ok |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
......
#
# Feature name: rwsem-optimized
# Kconfig: Optimized asm/rwsem.h
# Kconfig: !RWSEM_GENERIC_SPINLOCK
# description: arch provides optimized rwsem APIs
#
-----------------------
......@@ -8,8 +8,8 @@
-----------------------
| alpha: | ok |
| arc: | TODO |
| arm: | TODO |
| arm64: | TODO |
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
......@@ -17,14 +17,16 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| um: | ok |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | ok |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | TODO |
| arm: | ok |
| arm64: | TODO |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | ok |
......@@ -17,13 +17,15 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | ok |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | ok |
| sparc: | TODO |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
......
......@@ -17,11 +17,13 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
......
......@@ -17,11 +17,13 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | TODO |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
| um: | TODO |
......
......@@ -40,10 +40,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
| arm64: | .. |
| arm64: | ok |
| c6x: | .. |
| h8300: | .. |
| hexagon: | .. |
......@@ -17,11 +17,13 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
| nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| powerpc: | ok |
| s390: | .. |
| riscv: | TODO |
| s390: | ok |
| sh: | .. |
| sparc: | TODO |
| um: | .. |
......
#
# Small script that refreshes the kernel feature support status in place.
#
for F_FILE in Documentation/features/*/*/arch-support.txt; do
F=$(grep "^# Kconfig:" "$F_FILE" | cut -c26-)
#
# Each feature F is identified by a pair (O, K), where 'O' can
# be either the empty string (for 'nop') or "not" (the logical
# negation operator '!'); other operators are not supported.
#
O=""
K=$F
if [[ "$F" == !* ]]; then
O="not"
K=$(echo $F | sed -e 's/^!//g')
fi
#
# F := (O, K) is 'valid' iff there is a Kconfig file (for some
# arch) which contains K.
#
# Notice that this definition entails an 'asymmetry' between
# the case 'O = ""' and the case 'O = "not"'. E.g., F may be
# _invalid_ if:
#
# [case 'O = ""']
# 1) no arch provides support for F,
# 2) K does not exist (e.g., it was renamed/mis-typed);
#
# [case 'O = "not"']
# 3) all archs provide support for F,
# 4) as in (2).
#
# The rationale for adopting this definition (and, thus, for
# keeping the asymmetry) is:
#
# We want to be able to 'detect' (2) (or (4)).
#
# (1) and (3) may further warn the developers about the fact
# that K can be removed.
#
F_VALID="false"
for ARCH_DIR in arch/*/; do
K_FILES=$(find $ARCH_DIR -name "Kconfig*")
K_GREP=$(grep "$K" $K_FILES)
if [ ! -z "$K_GREP" ]; then
F_VALID="true"
break
fi
done
if [ "$F_VALID" = "false" ]; then
printf "WARNING: '%s' is not a valid Kconfig\n" "$F"
fi
T_FILE="$F_FILE.tmp"
grep "^#" $F_FILE > $T_FILE
echo " -----------------------" >> $T_FILE
echo " | arch |status|" >> $T_FILE
echo " -----------------------" >> $T_FILE
for ARCH_DIR in arch/*/; do
ARCH=$(echo $ARCH_DIR | sed -e 's/arch//g' | sed -e 's/\///g')
K_FILES=$(find $ARCH_DIR -name "Kconfig*")
K_GREP=$(grep "$K" $K_FILES)
#
# Arch support status values for (O, K) are updated according
# to the following rules.
#
# - ("", K) is 'supported by a given arch', if there is a
# Kconfig file for that arch which contains K;
#
# - ("not", K) is 'supported by a given arch', if there is
# no Kconfig file for that arch which contains K;
#
# - otherwise: preserve the previous status value (if any),
# default to 'not yet supported'.
#
# Notice that, according these rules, invalid features may be
# updated/modified.
#
if [ "$O" = "" ] && [ ! -z "$K_GREP" ]; then
printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
elif [ "$O" = "not" ] && [ -z "$K_GREP" ]; then
printf " |%12s: | ok |\n" "$ARCH" >> $T_FILE
else
S=$(grep -v "^#" "$F_FILE" | grep " $ARCH:")
if [ ! -z "$S" ]; then
echo "$S" >> $T_FILE
else
printf " |%12s: | TODO |\n" "$ARCH" \
>> $T_FILE
fi
fi
done
echo " -----------------------" >> $T_FILE
mv $T_FILE $F_FILE
done
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,12 +17,14 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sh: | ok |
| sparc: | TODO |
| um: | TODO |
| unicore32: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | ok |
| microblaze: | ok |
| mips: | ok |
| nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | .. |
| powerpc: | .. |
| powerpc: | ok |
| riscv: | TODO |
| s390: | .. |
| sh: | TODO |
| sparc: | .. |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | ok |
| mips: | ok |
| nds32: | ok |
| nios2: | ok |
| openrisc: | ok |
| parisc: | ok |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | ok |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| parisc: | ok |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | ok |
| nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | ok |
| sh: | .. |
| sparc: | ok |
......
......@@ -17,10 +17,12 @@
| m68k: | .. |
| microblaze: | .. |
| mips: | TODO |
| nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | TODO |
| riscv: | TODO |
| s390: | TODO |
| sh: | TODO |
| sparc: | TODO |
......
......@@ -17,10 +17,12 @@
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nds32: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| riscv: | TODO |
| s390: | TODO |
| sh: | ok |
| sparc: | TODO |
......
......@@ -9,7 +9,7 @@
| alpha: | TODO |
| arc: | .. |
| arm: | .. |
| arm64: | .. |
| arm64: | ok |
| c6x: | .. |
| h8300: | .. |
| hexagon: | .. |
......@@ -17,10 +17,12 @@
| m68k: | .. |
| microblaze: | ok |
| mips: | ok |
| nds32: | TODO |
| nios2: | .. |
| openrisc: | .. |
| parisc: | .. |
| powerpc: | ok |
| riscv: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
......
#
# Feature name: pte_special
# Kconfig: __HAVE_ARCH_PTE_SPECIAL
# description: arch supports the pte_special()/pte_mkspecial() VM APIs
#
-----------------------
| arch |status|
-----------------------
| alpha: | TODO |
| arc: | ok |
| arm: | ok |
| arm64: | ok |
| c6x: | TODO |
| h8300: | TODO |
| hexagon: | TODO |
| ia64: | TODO |
| m68k: | TODO |
| microblaze: | TODO |
| mips: | TODO |
| nios2: | TODO |
| openrisc: | TODO |
| parisc: | TODO |
| powerpc: | ok |
| s390: | ok |
| sh: | ok |
| sparc: | ok |
| um: | TODO |
| unicore32: | TODO |
| x86: | ok |
| xtensa: | TODO |
-----------------------
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