kernel.git/arch/parisc/kernel/firmware.c, branch linux-6.0.y

parisc: Fix locking in pdc_iodc_print() firmware call

2023-01-07T10:15:59Z

commit 7236aae5f81f3efbd93d0601e74fc05994bc2580 upstream. Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings. Signed-off-by: Helge Deller Cc: # 6.0+ Signed-off-by: Greg Kroah-Hartman

parisc: Add PDC locking functions for rendezvous code

2022-03-29T19:37:12Z

Add pdc_cpu_rendezvous_lock() and pdc_cpu_rendezvous_unlock() to lock PDC while CPU is transitioning into rendezvous state. This is needed, because the transition phase may take up to 8 seconds. Add pdc_pat_get_PDC_entrypoint() to get PDC entry point for current CPU. Signed-off-by: Helge Deller

parisc: Ensure set_firmware_width() is called only once

2022-03-29T19:37:12Z

Call set_firmware_width() only once at runtime. This prevents that hotplugged CPUs will get stuck in spinlocks later on. Signed-off-by: Helge Deller

parisc/firmware: add functions to retrieve TOC data

2021-11-01T06:35:59Z

Add functions to retrieve TOC data from firmware both for 1.1 and 2.0 PDC. Signed-off-by: Sven Schnelle Signed-off-by: Helge Deller

isystem: ship and use stdarg.h

2021-08-19T00:02:55Z

Ship minimal stdarg.h (1 type, 4 macros) as . stdarg.h is the only userspace header commonly used in the kernel. GPL 2 version of can be extracted from http://archive.debian.org/debian/pool/main/g/gcc-4.2/gcc-4.2_4.2.4.orig.tar.gz Signed-off-by: Alexey Dobriyan Acked-by: Rafael J. Wysocki Acked-by: Ard Biesheuvel Signed-off-by: Masahiro Yamada

parisc: firmware: Update references to parisc website

2020-06-01T21:02:11Z

The PA-RISC Linux project web page is now hosted at https://parisc.wiki.kernel.org Signed-off-by: Helge Deller

parisc: add __pdc_cpu_rendezvous()

2019-09-08T13:19:58Z

When stopping SMP cpus send them into rendezvous, so we can start them again later (when kexec'ing a new kernel). Signed-off-by: Sven Schnelle Signed-off-by: Helge Deller

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

parisc: Use __ro_after_init in firmware.c

2019-05-10T19:00:44Z

Signed-off-by: Helge Deller

parisc: Show machine product number during boot

2019-02-21T19:37:13Z

Ask PDC firmware during boot for the original and current product number as well as the serial number and show it (if available). Signed-off-by: Helge Deller