[GIT PULL] RISC-V Patches for the 5.18 Merge Window, Part 2

[Palmer Dabbelt]

merged tag 'riscv-for-linus-5.18-mw0'
The following changes since commit aa5b537b0ecc16992577b013f11112d54c7ce869:

  Merge tag 'riscv-for-linus-5.18-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (2022-03-25 10:11:38 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.18-mw1

for you to fetch changes up to 1464d00b27b2e29a5556f6a4099cf083886e883f:

  RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n (2022-03-31 17:19:27 -0700)

----------------------------------------------------------------
RISC-V Patches for the 5.18 Merge Window, Part 2

This has a handful of new features

* Support for CURRENT_STACK_POINTER, which enables some extra stack
  debugging for HARDENED_USERCOPY.
* Support for the new SBI CPU idle extension, via cpuidle and suspend
  drivers.
* Profiling has been enabled in the defconfigs.

but is mostly fixes and cleanups.

----------------------------------------------------------------
There are no merge conflicts.  I'm getting on allyesconfig warning in
drivers/misc/habanalabs, but that appears to just be a 32-bit problem (it's
happening on 32-bit x86 as well).  I've sent a patch for that, but I doubt it's
a RISC-V issue so I'm sending this at the same time.

With that patch I get clean build that boot after my test merge.

----------------------------------------------------------------
Anup Patel (9):
      RISC-V: Enable CPU_IDLE drivers
      RISC-V: Rename relocate() and make it global
      RISC-V: Add arch functions for non-retentive suspend entry/exit
      RISC-V: Add SBI HSM suspend related defines
      cpuidle: Factor-out power domain related code from PSCI domain driver
      cpuidle: Add RISC-V SBI CPU idle driver
      dt-bindings: Add common bindings for ARM and RISC-V idle states
      RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine
      RISC-V: Enable profiling by default

Atish Patra (2):
      RISC-V: Fix a comment typo in riscv_of_parent_hartid()
      RISC-V: Declare per cpu boot data as static

Bagas Sanjaya (1):
      Documentation: riscv: remove non-existent directory from table of contents

Dmitry Vyukov (1):
      riscv: Increase stack size under KASAN

Fangrui Song (1):
      riscv module: remove (NOLOAD)

Kees Cook (1):
      riscv: Rename "sp_in_global" to "current_stack_pointer"

Nikita Shubin (1):
      riscv: Fix fill_callchain return value

Niklas Cassel (1):
      riscv: dts: canaan: Fix SPI3 bus width

Palmer Dabbelt (3):
      RISC-V CPU Idle Support
      RISC-V: defconfig: Drop redundant SBI HVC and earlycon
      RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n

Randy Dunlap (1):
      riscv: cpu.c: don't use kernel-doc markers for comments

Wu Caize (1):
      RISC-V: module: fix apply_r_riscv_rcv_branch_rela typo

 .../bindings/arm/msm/qcom,idle-state.txt           |   2 +-
 Documentation/devicetree/bindings/arm/psci.yaml    |   2 +-
 .../bindings/{arm => cpu}/idle-states.yaml         | 228 +++++++-
 Documentation/devicetree/bindings/riscv/cpus.yaml  |   6 +
 Documentation/riscv/index.rst                      |   1 -
 MAINTAINERS                                        |  14 +
 arch/riscv/Kconfig                                 |   8 +
 arch/riscv/Kconfig.socs                            |   3 +
 arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts     |   2 +
 arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts    |   2 +
 arch/riscv/boot/dts/canaan/sipeed_maix_go.dts      |   2 +
 arch/riscv/boot/dts/canaan/sipeed_maixduino.dts    |   2 +
 arch/riscv/configs/defconfig                       |   5 +-
 arch/riscv/configs/nommu_k210_defconfig            |   1 -
 arch/riscv/configs/nommu_k210_sdcard_defconfig     |   1 -
 arch/riscv/configs/nommu_virt_defconfig            |   1 -
 arch/riscv/configs/rv32_defconfig                  |   5 +-
 arch/riscv/include/asm/asm.h                       |  26 +
 arch/riscv/include/asm/cpuidle.h                   |  24 +
 arch/riscv/include/asm/current.h                   |   2 +
 arch/riscv/include/asm/module.lds.h                |   6 +-
 arch/riscv/include/asm/suspend.h                   |  36 ++
 arch/riscv/include/asm/thread_info.h               |  10 +-
 arch/riscv/kernel/Makefile                         |   2 +
 arch/riscv/kernel/asm-offsets.c                    |   3 +
 arch/riscv/kernel/cpu.c                            |   6 +-
 arch/riscv/kernel/cpu_ops_sbi.c                    |   2 +-
 arch/riscv/kernel/head.S                           |  27 +-
 arch/riscv/kernel/module.c                         |   4 +-
 arch/riscv/kernel/perf_callchain.c                 |   2 +-
 arch/riscv/kernel/process.c                        |   3 +-
 arch/riscv/kernel/stacktrace.c                     |   6 +-
 arch/riscv/kernel/suspend.c                        |  87 +++
 arch/riscv/kernel/suspend_entry.S                  | 124 ++++
 drivers/cpuidle/Kconfig                            |   9 +
 drivers/cpuidle/Kconfig.arm                        |   1 +
 drivers/cpuidle/Kconfig.riscv                      |  15 +
 drivers/cpuidle/Makefile                           |   5 +
 drivers/cpuidle/cpuidle-psci-domain.c              | 138 +----
 drivers/cpuidle/cpuidle-psci.h                     |  15 +-
 drivers/cpuidle/cpuidle-riscv-sbi.c                | 627 +++++++++++++++++++++
 drivers/cpuidle/dt_idle_genpd.c                    | 178 ++++++
 drivers/cpuidle/dt_idle_genpd.h                    |  50 ++
 43 files changed, 1491 insertions(+), 202 deletions(-)
 rename Documentation/devicetree/bindings/{arm => cpu}/idle-states.yaml (74%)
 create mode 100644 arch/riscv/include/asm/cpuidle.h
 create mode 100644 arch/riscv/include/asm/suspend.h
 create mode 100644 arch/riscv/kernel/suspend.c
 create mode 100644 arch/riscv/kernel/suspend_entry.S
 create mode 100644 drivers/cpuidle/Kconfig.riscv
 create mode 100644 drivers/cpuidle/cpuidle-riscv-sbi.c
 create mode 100644 drivers/cpuidle/dt_idle_genpd.c
 create mode 100644 drivers/cpuidle/dt_idle_genpd.h