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

Palmer Dabbelt palmer at dabbelt.com
Fri Apr 1 11:52:32 PDT 2022


On Fri, 01 Apr 2022 09:41:50 PDT (-0700), Palmer Dabbelt wrote:
> 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.

Sorry, looks like there are some issues with this series that Rob 
pointed out.  I'm going to re-spin this PR without those, unfortunately 
they're towards the beginning.

> * 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



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