linux.git/arch/parisc/kernel/firmware.c, branch v5.10.258 Clone of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git parisc/firmware: Fix F-extend for PDC addresses 2024-02-23T07:41:53+00:00 Helge Deller deller@gmx.de 2024-01-03T20:02:16+00:00 1dd8449e2008870e1ac5e3a477ea599b92111656 commit 735ae74f73e55c191d48689bd11ff4a06ea0508f upstream. When running with narrow firmware (64-bit kernel using a 32-bit firmware), extend PDC addresses into the 0xfffffff0.00000000 region instead of the 0xf0f0f0f0.00000000 region. This fixes the power button on the C3700 machine in qemu (64-bit CPU with 32-bit firmware), and my assumption is that the previous code was really never used (because most 64-bit machines have a 64-bit firmware), or it just worked on very old machines because they may only decode 40-bit of virtual addresses. Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 735ae74f73e55c191d48689bd11ff4a06ea0508f upstream.

When running with narrow firmware (64-bit kernel using a 32-bit
firmware), extend PDC addresses into the 0xfffffff0.00000000
region instead of the 0xf0f0f0f0.00000000 region.

This fixes the power button on the C3700 machine in qemu (64-bit CPU
with 32-bit firmware), and my assumption is that the previous code was
really never used (because most 64-bit machines have a 64-bit firmware),
or it just worked on very old machines because they may only decode
40-bit of virtual addresses.

Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Fix return code of pdc_iodc_print() 2023-02-15T16:22:19+00:00 Helge Deller deller@gmx.de 2022-12-19T19:56:36+00:00 2982b473d764b4d02a40c84246a2d576d411427d commit 5d1335dabb3c493a3d6d5b233953b6ac7b6c1ff2 upstream. There is an off-by-one if the printed string includes a new-line char. Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 5d1335dabb3c493a3d6d5b233953b6ac7b6c1ff2 upstream.

There is an off-by-one if the printed string includes a new-line
char.

Cc: stable@vger.kernel.org
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: firmware: Update references to parisc website 2020-06-01T21:02:11+00:00 Helge Deller deller@gmx.de 2020-06-01T21:02:11+00:00 861e93cf88b3722daf75947aa6c8ac342f238911 The PA-RISC Linux project web page is now hosted at https://parisc.wiki.kernel.org Signed-off-by: Helge Deller <deller@gmx.de> 
The PA-RISC Linux project web page is now hosted at
https://parisc.wiki.kernel.org

Signed-off-by: Helge Deller <deller@gmx.de>
parisc: add __pdc_cpu_rendezvous() 2019-09-08T13:19:58+00:00 Sven Schnelle svens@stackframe.org 2019-09-08T09:33:03+00:00 507efd63d98c4437d62bbfa932b322e72723e1fc 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 <svens@stackframe.org> Signed-off-by: Helge Deller <deller@gmx.de> 
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 <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30T18:26:32+00:00 Thomas Gleixner tglx@linutronix.de 2019-05-27T06:55:01+00:00 2874c5fd284268364ece81a7bd936f3c8168e567 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 <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
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 <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parisc: Use __ro_after_init in firmware.c 2019-05-10T19:00:44+00:00 Helge Deller deller@gmx.de 2019-05-10T18:50:16+00:00 1b69085d4fcfd1df67d86a553c522fa1cb7603b4 Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>
parisc: Show machine product number during boot 2019-02-21T19:37:13+00:00 Helge Deller deller@gmx.de 2019-02-08T17:28:13+00:00 8207d4ee44d3f525bf9aa57807ac9db5d0d90c1a 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 <deller@gmx.de> 
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 <deller@gmx.de>
parisc: Add PDC PAT cell_info() and pd_get_pdc_revisions() functions 2018-10-19T20:22:07+00:00 Helge Deller deller@gmx.de 2018-10-19T20:06:36+00:00 fe8376dbbd6ac1febb0fd6389e3ec4f349e70c71 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 <deller@gmx.de> 
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 <deller@gmx.de>
parisc: Add wrapper for pdc_instr() firmware function 2017-09-22T17:46:44+00:00 Helge Deller deller@gmx.de 2017-09-17T19:15:09+00:00 77089c5274fe2f72db5a2cd956d0d308aed08e68 Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>
parisc: Make existing core files reuseable for bootloader 2017-08-22T14:34:35+00:00 Helge Deller deller@gmx.de 2017-08-20T08:52:22+00:00 f5213b2c40f5749e6b9b8f737ea946495ed0a438 Signed-off-by: Helge Deller <deller@gmx.de> 
Signed-off-by: Helge Deller <deller@gmx.de>