linux.git/arch/parisc/kernel/firmware.c, branch v6.0

parisc: Add PDC locking functions for rendezvous code

2022-03-29T19:37:12+00:00

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

2022-03-29T19:37:12+00:00

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

2021-11-01T06:35:59+00:00

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

2021-08-19T00:02:55+00:00

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

2020-06-01T21:02:11+00:00

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()

2019-09-08T13:19:58+00:00

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

2019-05-30T18:26:32+00:00

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

2019-05-10T19:00:44+00:00

Signed-off-by: Helge Deller

parisc: Show machine product number during boot

2019-02-21T19:37:13+00:00

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

parisc: Add PDC PAT cell_info() and pd_get_pdc_revisions() functions

2018-10-19T20:22:07+00:00

Add wrappers for the PDC_PAT_CELL_GET_INFO and
PDC_PAT_PD_GET_PDC_INTERF_REV PAT PDC subfunctions.

Both provide access to the PAT capability bitfield which can guide us if
simultaneous PTLBs are allowed on the bus, and if firmware will
rendezvous all processors within PDCE_Check in case of an HPMC.

Signed-off-by: Helge Deller