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-rw-r--r--Documentation/features/arch-support.txt12
-rw-r--r--Documentation/features/core/cBPF-JIT/arch-support.txt31
-rw-r--r--Documentation/features/core/eBPF-JIT/arch-support.txt31
-rw-r--r--Documentation/features/core/generic-idle-thread/arch-support.txt31
-rw-r--r--Documentation/features/core/jump-labels/arch-support.txt31
-rw-r--r--Documentation/features/core/thread-info-in-task/arch-support.txt31
-rw-r--r--Documentation/features/core/tracehook/arch-support.txt31
-rw-r--r--Documentation/features/debug/KASAN/arch-support.txt31
-rw-r--r--Documentation/features/debug/debug-vm-pgtable/arch-support.txt31
-rw-r--r--Documentation/features/debug/gcov-profile-all/arch-support.txt31
-rw-r--r--Documentation/features/debug/kcov/arch-support.txt31
-rw-r--r--Documentation/features/debug/kgdb/arch-support.txt31
-rw-r--r--Documentation/features/debug/kmemleak/arch-support.txt31
-rw-r--r--Documentation/features/debug/kprobes-on-ftrace/arch-support.txt31
-rw-r--r--Documentation/features/debug/kprobes/arch-support.txt31
-rw-r--r--Documentation/features/debug/kretprobes/arch-support.txt31
-rw-r--r--Documentation/features/debug/optprobes/arch-support.txt31
-rw-r--r--Documentation/features/debug/stackprotector/arch-support.txt31
-rw-r--r--Documentation/features/debug/uprobes/arch-support.txt31
-rw-r--r--Documentation/features/debug/user-ret-profiler/arch-support.txt31
-rw-r--r--Documentation/features/io/dma-contiguous/arch-support.txt31
-rwxr-xr-xDocumentation/features/list-arch.sh11
-rw-r--r--Documentation/features/locking/cmpxchg-local/arch-support.txt31
-rw-r--r--Documentation/features/locking/lockdep/arch-support.txt31
-rw-r--r--Documentation/features/locking/queued-rwlocks/arch-support.txt31
-rw-r--r--Documentation/features/locking/queued-spinlocks/arch-support.txt31
-rw-r--r--Documentation/features/perf/kprobes-event/arch-support.txt31
-rw-r--r--Documentation/features/perf/perf-regs/arch-support.txt31
-rw-r--r--Documentation/features/perf/perf-stackdump/arch-support.txt31
-rw-r--r--Documentation/features/sched/membarrier-sync-core/arch-support.txt54
-rw-r--r--Documentation/features/sched/numa-balancing/arch-support.txt31
-rwxr-xr-xDocumentation/features/scripts/features-refresh.sh98
-rw-r--r--Documentation/features/seccomp/seccomp-filter/arch-support.txt31
-rw-r--r--Documentation/features/time/arch-tick-broadcast/arch-support.txt31
-rw-r--r--Documentation/features/time/clockevents/arch-support.txt31
-rw-r--r--Documentation/features/time/context-tracking/arch-support.txt31
-rw-r--r--Documentation/features/time/irq-time-acct/arch-support.txt31
-rw-r--r--Documentation/features/time/virt-cpuacct/arch-support.txt31
-rw-r--r--Documentation/features/vm/ELF-ASLR/arch-support.txt32
-rw-r--r--Documentation/features/vm/PG_uncached/arch-support.txt31
-rw-r--r--Documentation/features/vm/THP/arch-support.txt31
-rw-r--r--Documentation/features/vm/TLB/arch-support.txt31
-rw-r--r--Documentation/features/vm/huge-vmap/arch-support.txt31
-rw-r--r--Documentation/features/vm/ioremap_prot/arch-support.txt31
-rw-r--r--Documentation/features/vm/pte_special/arch-support.txt31
45 files changed, 1447 insertions, 0 deletions
diff --git a/Documentation/features/arch-support.txt b/Documentation/features/arch-support.txt
new file mode 100644
index 0000000000..118ae03184
--- /dev/null
+++ b/Documentation/features/arch-support.txt
@@ -0,0 +1,12 @@
+
+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
+ | N/A| # feature doesn't apply to the architecture
+
diff --git a/Documentation/features/core/cBPF-JIT/arch-support.txt b/Documentation/features/core/cBPF-JIT/arch-support.txt
new file mode 100644
index 0000000000..0a1f5bb7ee
--- /dev/null
+++ b/Documentation/features/core/cBPF-JIT/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: cBPF-JIT
+# Kconfig: HAVE_CBPF_JIT
+# description: arch supports cBPF JIT optimizations
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | TODO |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | TODO |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/core/eBPF-JIT/arch-support.txt b/Documentation/features/core/eBPF-JIT/arch-support.txt
new file mode 100644
index 0000000000..6c0f3d759e
--- /dev/null
+++ b/Documentation/features/core/eBPF-JIT/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: eBPF-JIT
+# Kconfig: HAVE_EBPF_JIT
+# description: arch supports eBPF JIT optimizations
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/core/generic-idle-thread/arch-support.txt b/Documentation/features/core/generic-idle-thread/arch-support.txt
new file mode 100644
index 0000000000..0b94099cf6
--- /dev/null
+++ b/Documentation/features/core/generic-idle-thread/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | ok |
+ | ia64: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/core/jump-labels/arch-support.txt b/Documentation/features/core/jump-labels/arch-support.txt
new file mode 100644
index 0000000000..94d9dece58
--- /dev/null
+++ b/Documentation/features/core/jump-labels/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: jump-labels
+# Kconfig: HAVE_ARCH_JUMP_LABEL
+# description: arch supports live patched, high efficiency branches
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/core/thread-info-in-task/arch-support.txt b/Documentation/features/core/thread-info-in-task/arch-support.txt
new file mode 100644
index 0000000000..97c65ed2ac
--- /dev/null
+++ b/Documentation/features/core/thread-info-in-task/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/core/tracehook/arch-support.txt b/Documentation/features/core/tracehook/arch-support.txt
new file mode 100644
index 0000000000..aed5679da6
--- /dev/null
+++ b/Documentation/features/core/tracehook/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | ok |
+ | ia64: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | ok |
+ | openrisc: | ok |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt
new file mode 100644
index 0000000000..c4581c2edb
--- /dev/null
+++ b/Documentation/features/debug/KASAN/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: KASAN
+# Kconfig: HAVE_ARCH_KASAN
+# description: arch supports the KASAN runtime memory checker
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
new file mode 100644
index 0000000000..9ec5d13f49
--- /dev/null
+++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/gcov-profile-all/arch-support.txt b/Documentation/features/debug/gcov-profile-all/arch-support.txt
new file mode 100644
index 0000000000..dc4014f7e1
--- /dev/null
+++ b/Documentation/features/debug/gcov-profile-all/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | TODO |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/kcov/arch-support.txt b/Documentation/features/debug/kcov/arch-support.txt
new file mode 100644
index 0000000000..de84cefbcd
--- /dev/null
+++ b/Documentation/features/debug/kcov/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: kcov
+# Kconfig: ARCH_HAS_KCOV
+# description: arch supports kcov for coverage-guided fuzzing
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/kgdb/arch-support.txt b/Documentation/features/debug/kgdb/arch-support.txt
new file mode 100644
index 0000000000..5e91ec78c8
--- /dev/null
+++ b/Documentation/features/debug/kgdb/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: kgdb
+# Kconfig: HAVE_ARCH_KGDB
+# description: arch supports the kGDB kernel debugger
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | ok |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | ok |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/kmemleak/arch-support.txt b/Documentation/features/debug/kmemleak/arch-support.txt
new file mode 100644
index 0000000000..4e205ef703
--- /dev/null
+++ b/Documentation/features/debug/kmemleak/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: kmemleak
+# Kconfig: HAVE_DEBUG_KMEMLEAK
+# description: arch supports the kernel memory leak detector
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
new file mode 100644
index 0000000000..38a0a54b79
--- /dev/null
+++ b/Documentation/features/debug/kprobes-on-ftrace/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/kprobes/arch-support.txt b/Documentation/features/debug/kprobes/arch-support.txt
new file mode 100644
index 0000000000..aad83b5758
--- /dev/null
+++ b/Documentation/features/debug/kprobes/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: kprobes
+# Kconfig: HAVE_KPROBES
+# description: arch supports live patched kernel probe
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/kretprobes/arch-support.txt b/Documentation/features/debug/kretprobes/arch-support.txt
new file mode 100644
index 0000000000..61380010a4
--- /dev/null
+++ b/Documentation/features/debug/kretprobes/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: kretprobes
+# Kconfig: HAVE_KRETPROBES
+# description: arch supports kernel function-return probes
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/optprobes/arch-support.txt b/Documentation/features/debug/optprobes/arch-support.txt
new file mode 100644
index 0000000000..83a4639a5c
--- /dev/null
+++ b/Documentation/features/debug/optprobes/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: optprobes
+# Kconfig: HAVE_OPTPROBES
+# description: arch supports live patched optprobes
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | TODO |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/stackprotector/arch-support.txt b/Documentation/features/debug/stackprotector/arch-support.txt
new file mode 100644
index 0000000000..4c64c5d596
--- /dev/null
+++ b/Documentation/features/debug/stackprotector/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: stackprotector
+# Kconfig: HAVE_STACKPROTECTOR
+# description: arch supports compiler driven stack overflow protection
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | ok |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/debug/uprobes/arch-support.txt b/Documentation/features/debug/uprobes/arch-support.txt
new file mode 100644
index 0000000000..24c8423b0a
--- /dev/null
+++ b/Documentation/features/debug/uprobes/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: uprobes
+# Kconfig: ARCH_SUPPORTS_UPROBES
+# description: arch supports live patched user probes
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/debug/user-ret-profiler/arch-support.txt b/Documentation/features/debug/user-ret-profiler/arch-support.txt
new file mode 100644
index 0000000000..059110a5fa
--- /dev/null
+++ b/Documentation/features/debug/user-ret-profiler/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/io/dma-contiguous/arch-support.txt b/Documentation/features/io/dma-contiguous/arch-support.txt
new file mode 100644
index 0000000000..bfe0921a38
--- /dev/null
+++ b/Documentation/features/io/dma-contiguous/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/list-arch.sh b/Documentation/features/list-arch.sh
new file mode 100755
index 0000000000..e73aa35848
--- /dev/null
+++ b/Documentation/features/list-arch.sh
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# 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=${1:-$(uname -m | sed 's/x86_64/x86/' | sed 's/i386/x86/')}
+
+$(dirname $0)/../../scripts/get_feat.pl list --arch $ARCH
diff --git a/Documentation/features/locking/cmpxchg-local/arch-support.txt b/Documentation/features/locking/cmpxchg-local/arch-support.txt
new file mode 100644
index 0000000000..68329e96df
--- /dev/null
+++ b/Documentation/features/locking/cmpxchg-local/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | TODO |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/locking/lockdep/arch-support.txt b/Documentation/features/locking/lockdep/arch-support.txt
new file mode 100644
index 0000000000..a36e231670
--- /dev/null
+++ b/Documentation/features/locking/lockdep/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | ok |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/locking/queued-rwlocks/arch-support.txt b/Documentation/features/locking/queued-rwlocks/arch-support.txt
new file mode 100644
index 0000000000..5deb845477
--- /dev/null
+++ b/Documentation/features/locking/queued-rwlocks/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: queued-rwlocks
+# Kconfig: ARCH_USE_QUEUED_RWLOCKS
+# description: arch supports queued rwlocks
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/locking/queued-spinlocks/arch-support.txt b/Documentation/features/locking/queued-spinlocks/arch-support.txt
new file mode 100644
index 0000000000..2d3961bfef
--- /dev/null
+++ b/Documentation/features/locking/queued-spinlocks/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: queued-spinlocks
+# Kconfig: ARCH_USE_QUEUED_SPINLOCKS
+# description: arch supports queued spinlocks
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/perf/kprobes-event/arch-support.txt b/Documentation/features/perf/kprobes-event/arch-support.txt
new file mode 100644
index 0000000000..641a7d2ff2
--- /dev/null
+++ b/Documentation/features/perf/kprobes-event/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | ok |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/perf/perf-regs/arch-support.txt b/Documentation/features/perf/perf-regs/arch-support.txt
new file mode 100644
index 0000000000..33866eb242
--- /dev/null
+++ b/Documentation/features/perf/perf-regs/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/perf/perf-stackdump/arch-support.txt b/Documentation/features/perf/perf-stackdump/arch-support.txt
new file mode 100644
index 0000000000..c8e4c7c650
--- /dev/null
+++ b/Documentation/features/perf/perf-stackdump/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/sched/membarrier-sync-core/arch-support.txt b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
new file mode 100644
index 0000000000..23260ca449
--- /dev/null
+++ b/Documentation/features/sched/membarrier-sync-core/arch-support.txt
@@ -0,0 +1,54 @@
+#
+# 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 returning from IPI handler, and when returning to user-space.
+#
+# * x86
+#
+# x86-32 uses IRET as return from interrupt, which takes care of the IPI.
+# However, it uses both IRET and SYSEXIT to go back to user-space. The IRET
+# instruction is core serializing, but not SYSEXIT.
+#
+# x86-64 uses IRET as return from interrupt, which takes care of the IPI.
+# However, it can return to user-space through either SYSRETL (compat code),
+# SYSRETQ, or IRET.
+#
+# Given that neither SYSRET{L,Q}, nor SYSEXIT, are core serializing, we rely
+# instead on write_cr3() performed by switch_mm() to provide core serialization
+# after changing the current mm, and deal with the special case of kthread ->
+# uthread (temporarily keeping current mm into active_mm) by issuing a
+# sync_core_before_usermode() in that specific case.
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/sched/numa-balancing/arch-support.txt b/Documentation/features/sched/numa-balancing/arch-support.txt
new file mode 100644
index 0000000000..532cc67cdf
--- /dev/null
+++ b/Documentation/features/sched/numa-balancing/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: numa-balancing
+# Kconfig: ARCH_SUPPORTS_NUMA_BALANCING
+# description: arch supports NUMA balancing
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | .. |
+ | arm: | .. |
+ | arm64: | ok |
+ | csky: | .. |
+ | hexagon: | .. |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | .. |
+ | microblaze: | .. |
+ | mips: | TODO |
+ | nios2: | .. |
+ | openrisc: | .. |
+ | parisc: | .. |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | .. |
+ | sparc: | TODO |
+ | um: | .. |
+ | x86: | ok |
+ | xtensa: | .. |
+ -----------------------
diff --git a/Documentation/features/scripts/features-refresh.sh b/Documentation/features/scripts/features-refresh.sh
new file mode 100755
index 0000000000..c2288124e9
--- /dev/null
+++ b/Documentation/features/scripts/features-refresh.sh
@@ -0,0 +1,98 @@
+#
+# 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
diff --git a/Documentation/features/seccomp/seccomp-filter/arch-support.txt b/Documentation/features/seccomp/seccomp-filter/arch-support.txt
new file mode 100644
index 0000000000..3a7237b989
--- /dev/null
+++ b/Documentation/features/seccomp/seccomp-filter/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: seccomp-filter
+# Kconfig: HAVE_ARCH_SECCOMP_FILTER
+# description: arch supports seccomp filters
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | ok |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | TODO |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/time/arch-tick-broadcast/arch-support.txt b/Documentation/features/time/arch-tick-broadcast/arch-support.txt
new file mode 100644
index 0000000000..9bffac8001
--- /dev/null
+++ b/Documentation/features/time/arch-tick-broadcast/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | ok |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | TODO |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/time/clockevents/arch-support.txt b/Documentation/features/time/clockevents/arch-support.txt
new file mode 100644
index 0000000000..625160048f
--- /dev/null
+++ b/Documentation/features/time/clockevents/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: clockevents
+# Kconfig: !LEGACY_TIMER_TICK
+# description: arch support generic clock events
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | ok |
+ | arc: | ok |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | ok |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | ok |
+ | openrisc: | ok |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/time/context-tracking/arch-support.txt b/Documentation/features/time/context-tracking/arch-support.txt
new file mode 100644
index 0000000000..72bc5bad03
--- /dev/null
+++ b/Documentation/features/time/context-tracking/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/time/irq-time-acct/arch-support.txt b/Documentation/features/time/irq-time-acct/arch-support.txt
new file mode 100644
index 0000000000..ceb036610d
--- /dev/null
+++ b/Documentation/features/time/irq-time-acct/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | .. |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | .. |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | .. |
+ | sh: | TODO |
+ | sparc: | .. |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/time/virt-cpuacct/arch-support.txt b/Documentation/features/time/virt-cpuacct/arch-support.txt
new file mode 100644
index 0000000000..c063dffd52
--- /dev/null
+++ b/Documentation/features/time/virt-cpuacct/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/vm/ELF-ASLR/arch-support.txt b/Documentation/features/vm/ELF-ASLR/arch-support.txt
new file mode 100644
index 0000000000..47909c3dd6
--- /dev/null
+++ b/Documentation/features/vm/ELF-ASLR/arch-support.txt
@@ -0,0 +1,32 @@
+#
+# 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|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/vm/PG_uncached/arch-support.txt b/Documentation/features/vm/PG_uncached/arch-support.txt
new file mode 100644
index 0000000000..5acd64b97d
--- /dev/null
+++ b/Documentation/features/vm/PG_uncached/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | ok |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/vm/THP/arch-support.txt b/Documentation/features/vm/THP/arch-support.txt
new file mode 100644
index 0000000000..9dd7d75d04
--- /dev/null
+++ b/Documentation/features/vm/THP/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: THP
+# Kconfig: HAVE_ARCH_TRANSPARENT_HUGEPAGE
+# description: arch supports transparent hugepages
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | .. |
+ | hexagon: | .. |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | .. |
+ | microblaze: | .. |
+ | mips: | ok |
+ | nios2: | .. |
+ | openrisc: | .. |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | .. |
+ | sparc: | ok |
+ | um: | .. |
+ | x86: | ok |
+ | xtensa: | .. |
+ -----------------------
diff --git a/Documentation/features/vm/TLB/arch-support.txt b/Documentation/features/vm/TLB/arch-support.txt
new file mode 100644
index 0000000000..76208db88f
--- /dev/null
+++ b/Documentation/features/vm/TLB/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | .. |
+ | microblaze: | .. |
+ | mips: | TODO |
+ | nios2: | .. |
+ | openrisc: | .. |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | TODO |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | .. |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/vm/huge-vmap/arch-support.txt b/Documentation/features/vm/huge-vmap/arch-support.txt
new file mode 100644
index 0000000000..34647d9bdc
--- /dev/null
+++ b/Documentation/features/vm/huge-vmap/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/vm/ioremap_prot/arch-support.txt b/Documentation/features/vm/ioremap_prot/arch-support.txt
new file mode 100644
index 0000000000..a24149e59d
--- /dev/null
+++ b/Documentation/features/vm/ioremap_prot/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# Feature name: ioremap_prot
+# Kconfig: HAVE_IOREMAP_PROT
+# description: arch has ioremap_prot()
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | ok |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | TODO |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/vm/pte_special/arch-support.txt b/Documentation/features/vm/pte_special/arch-support.txt
new file mode 100644
index 0000000000..d2b22a0694
--- /dev/null
+++ b/Documentation/features/vm/pte_special/arch-support.txt
@@ -0,0 +1,31 @@
+#
+# 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 |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | ia64: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------