linux-stable.git/arch/powerpc/kernel/cputable.c, branch v5.8

powerpc: Add POWER10 architected mode

2020-06-02T10:59:20+00:00

PVR value of 0x0F000006 means we are arch v3.1 compliant (i.e.
POWER10). This is used by phyp and kvm when booting as a pseries guest
to detect the presence of new P10 features and to enable the
appropriate hwcap and facility bits.

Signed-off-by: Alistair Popple 
Signed-off-by: Cédric Le Goater 
[mpe: Fall through to __init_FSCR rather than duplicating it, drop
      hack to set current->thread.fscr now that is handled elsewhere.]
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/20200521014341.29095-8-alistair@popple.id.au

powerpc/40x: Remove support for IBM 405GP

2020-05-28T13:24:36+00:00

All platforms selecting the obsolete processor are gone now.

Remove support for it.

Signed-off-by: Christophe Leroy 
Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/906c6a6df710f2826e332b8a0cd5d2859a913a1c.1590079969.git.christophe.leroy@csgroup.eu

powerpc/40x: Remove STB03xxx

2020-05-28T13:24:35+00:00

CONFIG_STB03xxx is not user selectable and is not selected
by any config.

Remove it.

Signed-off-by: Christophe Leroy 
Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/d7d73f9a8ee3a890566abace568101e9b4836016.1590079968.git.christophe.leroy@csgroup.eu

powerpc/40x: Remove support for IBM 403GCX

2020-05-28T13:24:35+00:00

CONFIG_403GCX is not user selectable and is not
selected by any platform.

Remove it.

Signed-off-by: Christophe Leroy 
Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/635f8f5ce9d1f761b3bd8dc3e8ddad500cea26c4.1590079968.git.christophe.leroy@csgroup.eu

powerpc: Remove Xilinx PPC405/PPC440 support

2020-05-28T13:24:34+00:00

The latest Xilinx design tools called ISE and EDK has been released in
October 2013. New tool doesn't support any PPC405/PPC440 new designs.
These platforms are no longer supported and tested.

PowerPC 405/440 port is orphan from 2013 by
commit cdeb89943bfc ("MAINTAINERS: Fix incorrect status tag") and
commit 19624236cce1 ("MAINTAINERS: Update Grant's email address and maintainership")
that's why it is time to remove the support fot these platforms.

Signed-off-by: Michal Simek 
Signed-off-by: Christophe Leroy 
Acked-by: Arnd Bergmann 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/8c593895e2cb57d232d85ce4d8c3a1aa7f0869cc.1590079968.git.christophe.leroy@csgroup.eu

powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type

2020-04-01T03:30:51+00:00

Before checking for cpu_type == NULL, this same copy happens, so doing
it here will just write the same value to the t->oprofile_type
again.

Remove the repeated copy, as it is unnecessary.

Signed-off-by: Leonardo Bras 
Reviewed-by: Michael Neuling 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/20200215053637.280880-1-leonardo@linux.ibm.com

powerpc: fix hardware PMU exception bug on PowerVM compatibility mode systems

2020-02-27T23:09:33+00:00

PowerVM systems running compatibility mode on a few Power8 revisions are
still vulnerable to the hardware defect that loses PMU exceptions arriving
prior to a context switch.

The software fix for this issue is enabled through the CPU_FTR_PMAO_BUG
cpu_feature bit, nevertheless this bit also needs to be set for PowerVM
compatibility mode systems.

Fixes: 68f2f0d431d9ea4 ("powerpc: Add a cpu feature CPU_FTR_PMAO_BUG")
Signed-off-by: Desnes A. Nunes do Rosario 
Reviewed-by: Leonardo Bras 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/20200227134715.9715-1-desnesn@linux.ibm.com

powerpc/32s: get rid of CPU_FTR_601 feature

2019-08-28T13:19:33+00:00

Now that 601 is exclusive from other 6xx, CPU_FTR_601 and
associated fixups are useless.

Drop this feature and use #ifdefs instead.

Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman 
Link: https://lore.kernel.org/r/ecdb7194a17dbfa01865df6a82979533adc2c70b.1566834712.git.christophe.leroy@c-s.fr

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

powerpc: don't use direct assignation during early boot.

2019-05-02T15:20:25+00:00

In kernel/cputable.c, explicitly use memcpy() instead of *y = *x;
This will allow GCC to replace it with __memcpy() when KASAN is
selected.

Acked-by: Dmitry Vyukov 
Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman