linux/kernel/power, branch v5.14

PM: hibernate: disable when there are active secretmem users

2021-07-08T18:48:21Z

It is unsafe to allow saving of secretmem areas to the hibernation snapshot as they would be visible after the resume and this essentially will defeat the purpose of secret memory mappings. Prevent hibernation whenever there are active secret memory users. Link: https://lkml.kernel.org/r/20210518072034.31572-6-rppt@kernel.org Signed-off-by: Mike Rapoport Acked-by: David Hildenbrand Acked-by: James Bottomley Cc: Alexander Viro Cc: Andy Lutomirski Cc: Arnd Bergmann Cc: Borislav Petkov Cc: Catalin Marinas Cc: Christopher Lameter Cc: Dan Williams Cc: Dave Hansen Cc: David Hildenbrand Cc: Elena Reshetova Cc: Hagen Paul Pfeifer Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: James Bottomley Cc: "Kirill A. Shutemov" Cc: Mark Rutland Cc: Matthew Wilcox Cc: Michael Kerrisk Cc: Palmer Dabbelt Cc: Palmer Dabbelt Cc: Paul Walmsley Cc: Peter Zijlstra Cc: Rick Edgecombe Cc: Roman Gushchin Cc: Shakeel Butt Cc: Shuah Khan Cc: Thomas Gleixner Cc: Tycho Andersen Cc: Will Deacon Cc: kernel test robot Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

PM: hibernate: remove leading spaces before tabs

2021-06-11T16:52:05Z

1) Run the following command to find and remove the leading spaces before tabs: $ find kernel/power/ -type f | xargs sed -r -i 's/^[ ]+\t/\t/' 2) Manually check and correct if necessary Signed-off-by: Zhen Lei Signed-off-by: Rafael J. Wysocki

PM: sleep: remove trailing spaces and tabs

2021-06-11T16:49:09Z

Run the following command to find and remove the trailing spaces and tabs: $ find kernel/power/ -type f | xargs sed -r -i 's/[ \t]+$//' Signed-off-by: Zhen Lei Signed-off-by: Rafael J. Wysocki

PM: hibernate: fix spelling mistakes

2021-05-24T14:17:07Z

Fix some spelling mistakes in comments: corresonds ==> corresponds alocated ==> allocated unitialized ==> uninitialized Deompression ==> Decompression Signed-off-by: Zhen Lei Signed-off-by: Rafael J. Wysocki

PM: sleep: fix typos in comments

2021-04-08T17:37:21Z

Change "occured" to "occurred" in kernel/power/autosleep.c. Change "consiting" to "consisting" in kernel/power/snapshot.c. Change "avaiable" to "available" in kernel/power/swap.c. No functionality changed. Signed-off-by: Lu Jialin Signed-off-by: Rafael J. Wysocki

PM: EM: postpone creating the debugfs dir till fs_initcall

2021-03-23T18:53:48Z

The debugfs directory '/sys/kernel/debug/energy_model' is needed before the Energy Model registration can happen. With the recent change in debugfs subsystem it's not allowed to create this directory at early stage (core_initcall). Thus creating this directory would fail. Postpone the creation of the EM debug dir to later stage: fs_initcall. It should be safe since all clients: CPUFreq drivers, Devfreq drivers will be initialized in later stages. The custom debug log below prints the time of creation the EM debug dir at fs_initcall and successful registration of EMs at later stages. [ 1.505717] energy_model: creating rootdir [ 3.698307] cpu cpu0: EM: created perf domain [ 3.709022] cpu cpu1: EM: created perf domain Fixes: 56348560d495 ("debugfs: do not attempt to create a new file before the filesystem is initalized") Reported-by: Ionela Voinescu Signed-off-by: Lukasz Luba Reviewed-by: Greg Kroah-Hartman Signed-off-by: Rafael J. Wysocki

Merge branches 'powercap' and 'pm-misc'

2021-02-15T17:50:01Z

* powercap: powercap: intel_rapl: Use topology interface in rapl_init_domains() powercap: intel_rapl: Use topology interface in rapl_add_package() powercap/intel_rapl: add support for AlderLake Mobile powercap/drivers/dtpm: Fix size of object being allocated powercap/drivers/dtpm: Fix an IS_ERR() vs NULL check powercap/drivers/dtpm: Fix some missing unlock bugs powercap/drivers/dtpm: Fix a double shift bug powercap/drivers/dtpm: Fix __udivdi3 and __aeabi_uldivmod unresolved symbols powercap/drivers/dtpm: Add CPU energy model based support powercap/drivers/dtpm: Add API for dynamic thermal power management Documentation/powercap/dtpm: Add documentation for dtpm units: Add Watt units * pm-misc: PM: Kconfig: remove unneeded "default n" options PM: EM: update Kconfig description and drop "default n" option

PM: sleep: Constify static struct attribute_group

2021-02-12T15:46:59Z

The only usage of suspend_attr_group is to put its address in an array of pointers to const attribute_group structs. Make it const to allow the compiler to put it into read-only memory. Signed-off-by: Rikard Falkeborn Signed-off-by: Rafael J. Wysocki

PM: Kconfig: remove unneeded "default n" options

2021-02-12T15:43:23Z

Remove "default n" options. If the "default" line is removed, it defaults to 'n'. Signed-off-by: Lukasz Luba Signed-off-by: Rafael J. Wysocki

PM: EM: update Kconfig description and drop "default n" option

2021-02-12T15:43:23Z

Energy Model supports now other devices like GPUs, DSPs, not only CPUs. Thus, update the description in the config option. Remove also unneeded "default n". If the "default" line is removed, it defaults to 'n'. Signed-off-by: Lukasz Luba Signed-off-by: Rafael J. Wysocki