linux.git/arch/arm/kernel/cpuidle.c, branch v6.6.18

ARM: cpuidle: Drop of_device.h include

2023-04-13T22:46:34+00:00

Now that of_cpu_device_node_get() is defined in of.h, of_device.h is just
implicitly including other includes, and is no longer needed. Just drop
including of_device.h as of.h is already included.

Link: https://lore.kernel.org/r/20230329-dt-cpu-header-cleanups-v1-7-581e2605fe47@kernel.org
Signed-off-by: Rob Herring

cpuidle,arch: Mark all regular cpuidle_state:: Enter methods __cpuidle

2023-01-13T10:48:18+00:00

For all cpuidle drivers that do not use CPUIDLE_FLAG_RCU_IDLE (iow,
the simple ones) make sure all the functions are marked __cpuidle.

( due to lack of noinstr validation on these platforms it is entirely
  possible this isn't complete )

Signed-off-by: Peter Zijlstra (Intel) 
Signed-off-by: Ingo Molnar 
Link: https://lore.kernel.org/r/20230112195542.335211484@infradead.org

treewide: Convert macro and uses of section(foo) to section("foo")

2020-10-25T21:51:49+00:00

Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.

Remove the quote operator # from compiler_attributes.h __section macro.

Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.

Conversion done using the script at:

    https://lore.kernel.org/lkml/75393e5ddc272dc7403de74d645e6c6e0f4e70eb.camel@perches.com/2-convert_section.pl

Signed-off-by: Joe Perches 
Reviewed-by: Nick Desaulniers 
Reviewed-by: Miguel Ojeda 
Signed-off-by: Linus Torvalds

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 159

2019-05-30T18:26:37+00:00

Based on 1 normalized pattern(s):

  the code contained herein is licensed under the gnu general public
  license you may obtain a copy of the gnu general public license
  version 2 or later at the following locations http www opensource
  org licenses gpl license html http www gnu org copyleft gpl html

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 161 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Richard Fontana 
Reviewed-by: Allison Randal 
Reviewed-by: Kate Stewart 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.383790741@linutronix.de
Signed-off-by: Greg Kroah-Hartman

ARM: Convert to using %pOF instead of full_name

2017-08-16T20:25:30+00:00

Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.

Signed-off-by: Rob Herring 
Acked-by: Krzysztof Kozlowski 
Acked-by: Heiko Stuebner 
Reviewed-by: Geert Uytterhoeven 
Acked-by: Gregory CLEMENT 
Acked-by: Shawn Guo 
Acked-by: Simon Horman 
Cc: Russell King 
Cc: Kukjin Kim 
Cc: Javier Martinez Canillas 
Cc: Fabio Estevam 
Cc: Jason Cooper 
Cc: Andrew Lunn 
Cc: Sebastian Hesselbarth 
Cc: Tony Lindgren 
Cc: "Benoît Cousson" 
Cc: Paul Walmsley 
Cc: Magnus Damm 
Signed-off-by: Arnd Bergmann

ARM: 8595/2: apply more __ro_after_init

2016-08-12T15:47:06+00:00

Guided by grsecurity's analogous __read_only markings in arch/arm,
this applies several uses of __ro_after_init to structures that are
only updated during __init.

Signed-off-by: Kees Cook 
Signed-off-by: Russell King

ARM: 8586/1: cpuidle: make arm_cpuidle_suspend() a bit more efficient

2016-07-14T15:30:45+00:00

Currently, we check cpuidle_ops.suspend every time when entering a
low-power idle state. But this check could be avoided in this hot path
by moving it into arm_cpuidle_read_ops() to reduce arm_cpuidle_suspend
overhead a bit.

Signed-off-by: Jisheng Zhang 
Acked-by: Daniel Lezcano 
Signed-off-by: Russell King

ARM: 8585/1: cpuidle: fix !cpuidle_ops[cpu].init case during init

2016-07-14T15:30:44+00:00

Let's assume cpuidle_ops exists but it doesn't implement the according
init callback, current arm_cpuidle_init() will return success to its
caller, but in fact it should return -EOPNOTSUPP.

Signed-off-by: Jisheng Zhang 
Acked-by: Daniel Lezcano 
Signed-off-by: Russell King

ARM: cpuidle: constify return value of arm_cpuidle_get_ops()

2016-04-20T04:59:11+00:00

arm_cpuidle_read_ops() just copies '*ops' to cpuidle_ops[cpu], so the
structure '*ops' is not modified at all.

The comment is also updated accordingly.

Signed-off-by: Jisheng Zhang 
Signed-off-by: Daniel Lezcano

ARM: 8485/1: cpuidle: remove cpu parameter from the cpuidle_ops suspend hook

2015-12-22T12:09:43+00:00

The suspend() hook in the cpuidle_ops struct is always called on
the cpu entering idle, which means that the cpu parameter passed
to the suspend hook always corresponds to the local cpu, making
it somewhat redundant.

This patch removes the logical cpu parameter from the ARM
cpuidle_ops.suspend hook and updates all the existing kernel
implementations to reflect this change.

Signed-off-by: Lorenzo Pieralisi 
Acked-by: Daniel Lezcano 
Reviewed-by: Lina Iyer 
Tested-by: Lina Iyer 
Tested-by: Jisheng Zhang  [psci]
Cc: Lina Iyer 
Cc: Daniel Lezcano 
Signed-off-by: Russell King