From 4352b8aee98005853aa63f57d6377282de17a33f Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Aug 2026 13:28:57 -0700 Subject: Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull I3C updates from Alexandre Belloni: "A new driver this cycle, for the AMD AXI I3C controller. There are also new features such as IBI wakeup support, SETAASA device discovery and ACPI support for the the DAA methods, meaning we can now communicate with the SPD devices on DDR5 modules. New driver: - AMD AXI I3C master controller Subsystem: - I3C Common Command Code (CCC) handling improvements, especially around GET CCCs - SETAASA device discovery support - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as well as I2C devices on I3C bus - IBI-based wakeup support Drivers: - dw: SETAASA support - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C controller support, PIO queue management support for HCI v1.2 - renesas: improve suspend to RAM support, add runtime PM support" * tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits) i3c: dw: reduce do_daa time if there's no client i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2 i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode i3c: dw: rename "pclk" to "apb" to match dt-binding i3c: dw: make struct dw_i3c_cmd smaller i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding i3c: renesas: Don't register devices when ENTDAA times out i3c: master: dw-i3c-master: fix OD timing for first broadcast i3c: mipi-i3c-hci: Advertise IBI wakeup capability i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev() i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI i3c: master: Reject IBI requests from non-IBI-capable devices i3c: master: Add helper to query bus wakeup requirements i3c: master: Report wakeup events for IBIs i3c: master: Support IBI-based wakeup capability i3c: master: Fix potential UAF in i3c_device_match() i3c: master: Fix potential UAF in i3c_device_uevent() i3c: Make dev->desc locking assumptions explicit i3c: master: Fix use-after-free of master->this ... --- tools/docs/get_feat.py | 225 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 225 insertions(+) create mode 100755 tools/docs/get_feat.py (limited to 'tools/docs/get_feat.py') diff --git a/tools/docs/get_feat.py b/tools/docs/get_feat.py new file mode 100755 index 000000000..2b5155a1f --- /dev/null +++ b/tools/docs/get_feat.py @@ -0,0 +1,225 @@ +#!/usr/bin/env python3 +# pylint: disable=R0902,R0911,R0912,R0914,R0915 +# Copyright(c) 2025: Mauro Carvalho Chehab . +# SPDX-License-Identifier: GPL-2.0 + + +""" +Parse the Linux Feature files and produce a ReST book. +""" + +import argparse +import os +import subprocess +import sys + +from pprint import pprint + +LIB_DIR = "../../tools/lib/python" +SRC_DIR = os.path.dirname(os.path.realpath(__file__)) + +sys.path.insert(0, os.path.join(SRC_DIR, LIB_DIR)) + +from feat.parse_features import ParseFeature # pylint: disable=C0413 + +SRCTREE = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../..") +DEFAULT_DIR = "Documentation/features" + + +class GetFeature: + """Helper class to parse feature parsing parameters""" + + @staticmethod + def get_current_arch(): + """Detects the current architecture""" + + proc = subprocess.run(["uname", "-m"], check=True, + capture_output=True, text=True) + + arch = proc.stdout.strip() + if arch in ["x86_64", "i386"]: + arch = "x86" + elif arch == "s390x": + arch = "s390" + + return arch + + def run_parser(self, args): + """Execute the feature parser""" + + feat = ParseFeature(args.directory, args.debug, args.enable_fname) + data = feat.parse() + + if args.debug > 2: + pprint(data) + + return feat + + def run_rest(self, args): + """ + Generate tables in ReST format. Three types of tables are + supported, depending on the calling arguments: + + - neither feature nor arch is passed: generates a full matrix; + - arch provided: generates a table of supported tables for the + guiven architecture, eventually filtered by feature; + - only feature provided: generates a table with feature details, + showing what architectures it is implemented. + """ + + feat = self.run_parser(args) + + if args.arch: + rst = feat.output_arch_table(args.arch, args.feat) + elif args.feat: + rst = feat.output_feature(args.feat) + else: + rst = feat.output_matrix() + + print(rst) + + def run_current(self, args): + """ + Instead of using a --arch parameter, get feature for the current + architecture. + """ + + args.arch = self.get_current_arch() + + self.run_rest(args) + + def run_list(self, args): + """ + Generate a list of features for a given architecture, in a format + parseable by other scripts. The output format is not ReST. + """ + + if not args.arch: + args.arch = self.get_current_arch() + + feat = self.run_parser(args) + msg = feat.list_arch_features(args.arch, args.feat) + + print(msg) + + def parse_arch(self, parser): + """Add a --arch parsing argument""" + + parser.add_argument("--arch", + help="Output features for an specific" + " architecture, optionally filtering for a " + "single specific feature.") + + def parse_feat(self, parser): + """Add a --feat parsing argument""" + + parser.add_argument("--feat", "--feature", + help="Output features for a single specific " + "feature.") + + + def current_args(self, subparsers): + """Implementscurrent argparse subparser""" + + parser = subparsers.add_parser("current", + formatter_class=argparse.RawTextHelpFormatter, + description="Output table in ReST " + "compatible ASCII format " + "with features for this " + "machine's architecture") + + self.parse_feat(parser) + parser.set_defaults(func=self.run_current) + + def rest_args(self, subparsers): + """Implement rest argparse subparser""" + + parser = subparsers.add_parser("rest", + formatter_class=argparse.RawTextHelpFormatter, + description="Output table(s) in ReST " + "compatible ASCII format " + "with features in ReST " + "markup language. The " + "output is affected by " + "--arch or --feat/--feature" + " flags.") + + self.parse_arch(parser) + self.parse_feat(parser) + parser.set_defaults(func=self.run_rest) + + def list_args(self, subparsers): + """Implement list argparse subparser""" + + parser = subparsers.add_parser("list", + formatter_class=argparse.RawTextHelpFormatter, + description="List features for this " + "machine's architecture, " + "using an easier to parse " + "format. The output is " + "affected by --arch flag.") + + self.parse_arch(parser) + self.parse_feat(parser) + parser.set_defaults(func=self.run_list) + + def validate_args(self, subparsers): + """Implement validate argparse subparser""" + + parser = subparsers.add_parser("validate", + formatter_class=argparse.RawTextHelpFormatter, + description="Validate the contents of " + "the files under " + f"{DEFAULT_DIR}.") + + parser.set_defaults(func=self.run_parser) + + def parser(self): + """ + Create an arparse with common options and several subparsers + """ + parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter) + + parser.add_argument("-d", "--debug", action="count", default=0, + help="Put the script in verbose mode, useful for " + "debugging. Can be called multiple times, to " + "increase verbosity.") + + parser.add_argument("--directory", "--dir", default=DEFAULT_DIR, + help="Changes the location of the Feature files. " + f"By default, it uses the {DEFAULT_DIR} " + "directory.") + + parser.add_argument("--enable-fname", action="store_true", + help="Prints the file name of the feature files. " + "This can be used in order to track " + "dependencies during documentation build.") + + subparsers = parser.add_subparsers() + + self.current_args(subparsers) + self.rest_args(subparsers) + self.list_args(subparsers) + self.validate_args(subparsers) + + args = parser.parse_args() + + return args + + +def main(): + """Main program""" + + feat = GetFeature() + + args = feat.parser() + + if "func" in args: + args.func(args) + else: + sys.exit(f"Please specify a valid command for {sys.argv[0]}") + + +# Call main method +if __name__ == "__main__": + main() -- cgit v1.3.1