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Date:   Fri, 01 Apr 2022 12:06:47 -0700 (PDT)
Subject:     Re: [GIT PULL] RISC-V Patches for the 5.18 Merge Window, Part 2
In-Reply-To: <mhng-149533f0-8756-4510-9724-e8e61f2e62c5@palmer-mbp2014>
CC:     robh+dt@kernel.org, linux-riscv@lists.infradead.org,
        linux-kernel@vger.kernel.org
From:   Palmer Dabbelt <palmer@dabbelt.com>
To:     Linus Torvalds <torvalds@linux-foundation.org>
Message-ID: <mhng-658e1e1b-38e0-4cc9-9f77-980caf39cb81@palmer-mbp2014>
Precedence: bulk

On Fri, 01 Apr 2022 11:52:32 PDT (-0700), Palmer Dabbelt wrote:
> 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.

Sorry for the confusion, but after talking to Rob on IRC: the plan is to 
send a Part 3, with a fix for the DT warnings on top of this -- that's 
much less scary that a rebase this late.

>> * 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