[GIT,PULL] RISC-V Patches for the 5.8 Merge Window, Part 1
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Message ID mhng-8ec4417a-1930-4582-b309-e510ebbfb37c@palmerdabbelt-glaptop1
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Commit 435faf5c218a47fd6258187f62d9bb1009717896
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  • [GIT,PULL] RISC-V Patches for the 5.8 Merge Window, Part 1
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Pull-request

git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0

Message

Palmer Dabbelt June 4, 2020, 6:57 p.m. UTC
The following changes since commit b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce:

  Linux 5.7-rc6 (2020-05-17 16:48:37 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0

for you to fetch changes up to 09c0533d129ce460e6214c14f744ddbac3733889:

  soc: sifive: l2 cache: Mark l2_get_priv_group as static (2020-05-28 15:57:49 -0700)

----------------------------------------------------------------
RISC-V Patches for the 5.8 Merge Window, Part 1

* The remainder of the code necessary to support the Kendryte K210.
    * Support for building device trees into the kernel, as the K210 doesn't
      have a bootloader that provides one.
    * A K210 device tree and the associated defconfig update.
    * Support for skipping PMP initialization on systems that trap on PMP
      accesses rather than treating them as WARL.
* Support for KGDB.
* Improvements to text patching.
* Some cleanups to the SiFive L2 cache driver.

I may have a second part, but I wanted to get this out earlier rather than
later as they've been ready to go for a while now.

----------------------------------------------------------------
Damien Le Moal (1):
      riscv: K210: Update defconfig

Palmer Dabbelt (5):
      riscv: Allow device trees to be built into the kernel
      riscv: K210: Add a built-in device tree
      RISC-V: Skip setting up PMPs on traps
      soc: sifive: l2 cache: Eliminate an unsigned zero compare warning
      soc: sifive: l2 cache: Mark l2_get_priv_group as static

Vincent Chen (4):
      kgdb: Add kgdb_has_hit_break function
      riscv: Add KGDB support
      riscv: Use the XML target descriptions to report 3 system registers
      riscv: Add SW single-step support for KDB

Yash Shah (2):
      riscv: cacheinfo: Implement cache_get_priv_group with a generic ops structure
      riscv: Add support to determine no. of L2 cache way enabled

Zong Li (3):
      riscv: Remove the 'riscv_' prefix of function name
      riscv: Use NOKPROBE_SYMBOL() instead of __krpobes annotation
      riscv: Use text_mutex instead of patch_lock

 arch/riscv/Kbuild                       |   1 +
 arch/riscv/Kconfig                      |   7 +
 arch/riscv/Kconfig.socs                 |  17 +-
 arch/riscv/boot/dts/Makefile            |   2 +
 arch/riscv/boot/dts/kendryte/Makefile   |   4 +-
 arch/riscv/configs/nommu_k210_defconfig |   7 +-
 arch/riscv/include/asm/cacheinfo.h      |  15 ++
 arch/riscv/include/asm/gdb_xml.h        | 117 ++++++++++
 arch/riscv/include/asm/kdebug.h         |  12 +
 arch/riscv/include/asm/kgdb.h           | 112 +++++++++
 arch/riscv/include/asm/parse_asm.h      | 219 ++++++++++++++++++
 arch/riscv/include/asm/patch.h          |   4 +-
 arch/riscv/include/asm/soc.h            |  39 ++++
 arch/riscv/kernel/Makefile              |   1 +
 arch/riscv/kernel/cacheinfo.c           |  17 ++
 arch/riscv/kernel/ftrace.c              |  15 +-
 arch/riscv/kernel/head.S                |  11 +-
 arch/riscv/kernel/kgdb.c                | 390 ++++++++++++++++++++++++++++++++
 arch/riscv/kernel/patch.c               |  46 ++--
 arch/riscv/kernel/setup.c               |   4 +
 arch/riscv/kernel/soc.c                 |  27 +++
 arch/riscv/kernel/traps.c               |   5 +
 arch/riscv/kernel/vmlinux.lds.S         |   5 +
 arch/riscv/mm/init.c                    |   9 +
 drivers/soc/kendryte/k210-sysctl.c      |  12 +
 drivers/soc/sifive/sifive_l2_cache.c    |  40 +++-
 kernel/debug/debug_core.c               |  12 +
 27 files changed, 1119 insertions(+), 31 deletions(-)
 create mode 100644 arch/riscv/include/asm/cacheinfo.h
 create mode 100644 arch/riscv/include/asm/gdb_xml.h
 create mode 100644 arch/riscv/include/asm/kdebug.h
 create mode 100644 arch/riscv/include/asm/kgdb.h
 create mode 100644 arch/riscv/include/asm/parse_asm.h
 create mode 100644 arch/riscv/kernel/kgdb.c

Comments

Atish Patra June 4, 2020, 7:50 p.m. UTC | #1
On Thu, Jun 4, 2020 at 11:57 AM Palmer Dabbelt <palmer@dabbelt.com> wrote:
>
> The following changes since commit b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce:
>
>   Linux 5.7-rc6 (2020-05-17 16:48:37 -0700)
>
> are available in the Git repository at:
>
>   git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0
>
> for you to fetch changes up to 09c0533d129ce460e6214c14f744ddbac3733889:
>
>   soc: sifive: l2 cache: Mark l2_get_priv_group as static (2020-05-28 15:57:49 -0700)
>
> ----------------------------------------------------------------
> RISC-V Patches for the 5.8 Merge Window, Part 1
>
> * The remainder of the code necessary to support the Kendryte K210.
>     * Support for building device trees into the kernel, as the K210 doesn't
>       have a bootloader that provides one.
>     * A K210 device tree and the associated defconfig update.
>     * Support for skipping PMP initialization on systems that trap on PMP
>       accesses rather than treating them as WARL.
> * Support for KGDB.
> * Improvements to text patching.
> * Some cleanups to the SiFive L2 cache driver.
>
> I may have a second part, but I wanted to get this out earlier rather than
> later as they've been ready to go for a while now.
>
Hi Palmer,
Can you also add the run time cpu hotplug fix patch if it is not too late?

https://patchwork.kernel.org/patch/11581221/

Without the patch, cpu hotplug will broken for 5.8-rc1 too.

> ----------------------------------------------------------------
> Damien Le Moal (1):
>       riscv: K210: Update defconfig
>
> Palmer Dabbelt (5):
>       riscv: Allow device trees to be built into the kernel
>       riscv: K210: Add a built-in device tree
>       RISC-V: Skip setting up PMPs on traps
>       soc: sifive: l2 cache: Eliminate an unsigned zero compare warning
>       soc: sifive: l2 cache: Mark l2_get_priv_group as static
>
> Vincent Chen (4):
>       kgdb: Add kgdb_has_hit_break function
>       riscv: Add KGDB support
>       riscv: Use the XML target descriptions to report 3 system registers
>       riscv: Add SW single-step support for KDB
>
> Yash Shah (2):
>       riscv: cacheinfo: Implement cache_get_priv_group with a generic ops structure
>       riscv: Add support to determine no. of L2 cache way enabled
>
> Zong Li (3):
>       riscv: Remove the 'riscv_' prefix of function name
>       riscv: Use NOKPROBE_SYMBOL() instead of __krpobes annotation
>       riscv: Use text_mutex instead of patch_lock
>
>  arch/riscv/Kbuild                       |   1 +
>  arch/riscv/Kconfig                      |   7 +
>  arch/riscv/Kconfig.socs                 |  17 +-
>  arch/riscv/boot/dts/Makefile            |   2 +
>  arch/riscv/boot/dts/kendryte/Makefile   |   4 +-
>  arch/riscv/configs/nommu_k210_defconfig |   7 +-
>  arch/riscv/include/asm/cacheinfo.h      |  15 ++
>  arch/riscv/include/asm/gdb_xml.h        | 117 ++++++++++
>  arch/riscv/include/asm/kdebug.h         |  12 +
>  arch/riscv/include/asm/kgdb.h           | 112 +++++++++
>  arch/riscv/include/asm/parse_asm.h      | 219 ++++++++++++++++++
>  arch/riscv/include/asm/patch.h          |   4 +-
>  arch/riscv/include/asm/soc.h            |  39 ++++
>  arch/riscv/kernel/Makefile              |   1 +
>  arch/riscv/kernel/cacheinfo.c           |  17 ++
>  arch/riscv/kernel/ftrace.c              |  15 +-
>  arch/riscv/kernel/head.S                |  11 +-
>  arch/riscv/kernel/kgdb.c                | 390 ++++++++++++++++++++++++++++++++
>  arch/riscv/kernel/patch.c               |  46 ++--
>  arch/riscv/kernel/setup.c               |   4 +
>  arch/riscv/kernel/soc.c                 |  27 +++
>  arch/riscv/kernel/traps.c               |   5 +
>  arch/riscv/kernel/vmlinux.lds.S         |   5 +
>  arch/riscv/mm/init.c                    |   9 +
>  drivers/soc/kendryte/k210-sysctl.c      |  12 +
>  drivers/soc/sifive/sifive_l2_cache.c    |  40 +++-
>  kernel/debug/debug_core.c               |  12 +
>  27 files changed, 1119 insertions(+), 31 deletions(-)
>  create mode 100644 arch/riscv/include/asm/cacheinfo.h
>  create mode 100644 arch/riscv/include/asm/gdb_xml.h
>  create mode 100644 arch/riscv/include/asm/kdebug.h
>  create mode 100644 arch/riscv/include/asm/kgdb.h
>  create mode 100644 arch/riscv/include/asm/parse_asm.h
>  create mode 100644 arch/riscv/kernel/kgdb.c
>
Palmer Dabbelt June 4, 2020, 8:15 p.m. UTC | #2
On Thu, 04 Jun 2020 12:50:13 PDT (-0700), atishp@atishpatra.org wrote:
> On Thu, Jun 4, 2020 at 11:57 AM Palmer Dabbelt <palmer@dabbelt.com> wrote:
>>
>> The following changes since commit b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce:
>>
>>   Linux 5.7-rc6 (2020-05-17 16:48:37 -0700)
>>
>> are available in the Git repository at:
>>
>>   git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0
>>
>> for you to fetch changes up to 09c0533d129ce460e6214c14f744ddbac3733889:
>>
>>   soc: sifive: l2 cache: Mark l2_get_priv_group as static (2020-05-28 15:57:49 -0700)
>>
>> ----------------------------------------------------------------
>> RISC-V Patches for the 5.8 Merge Window, Part 1
>>
>> * The remainder of the code necessary to support the Kendryte K210.
>>     * Support for building device trees into the kernel, as the K210 doesn't
>>       have a bootloader that provides one.
>>     * A K210 device tree and the associated defconfig update.
>>     * Support for skipping PMP initialization on systems that trap on PMP
>>       accesses rather than treating them as WARL.
>> * Support for KGDB.
>> * Improvements to text patching.
>> * Some cleanups to the SiFive L2 cache driver.
>>
>> I may have a second part, but I wanted to get this out earlier rather than
>> later as they've been ready to go for a while now.
>>
> Hi Palmer,
> Can you also add the run time cpu hotplug fix patch if it is not too late?
>
> https://patchwork.kernel.org/patch/11581221/
>
> Without the patch, cpu hotplug will broken for 5.8-rc1 too.

It looks like there's enough to warrant a part 2 (that fix, the vDSO stuff,
some Kconfig stuff, and the interrupt stuff).  Some of that was held back to
avoid conflicts, so it'd be easier for me if this just goes in as-is and I can
start putting together another PR based on the post-merge commit.

>> ----------------------------------------------------------------
>> Damien Le Moal (1):
>>       riscv: K210: Update defconfig
>>
>> Palmer Dabbelt (5):
>>       riscv: Allow device trees to be built into the kernel
>>       riscv: K210: Add a built-in device tree
>>       RISC-V: Skip setting up PMPs on traps
>>       soc: sifive: l2 cache: Eliminate an unsigned zero compare warning
>>       soc: sifive: l2 cache: Mark l2_get_priv_group as static
>>
>> Vincent Chen (4):
>>       kgdb: Add kgdb_has_hit_break function
>>       riscv: Add KGDB support
>>       riscv: Use the XML target descriptions to report 3 system registers
>>       riscv: Add SW single-step support for KDB
>>
>> Yash Shah (2):
>>       riscv: cacheinfo: Implement cache_get_priv_group with a generic ops structure
>>       riscv: Add support to determine no. of L2 cache way enabled
>>
>> Zong Li (3):
>>       riscv: Remove the 'riscv_' prefix of function name
>>       riscv: Use NOKPROBE_SYMBOL() instead of __krpobes annotation
>>       riscv: Use text_mutex instead of patch_lock
>>
>>  arch/riscv/Kbuild                       |   1 +
>>  arch/riscv/Kconfig                      |   7 +
>>  arch/riscv/Kconfig.socs                 |  17 +-
>>  arch/riscv/boot/dts/Makefile            |   2 +
>>  arch/riscv/boot/dts/kendryte/Makefile   |   4 +-
>>  arch/riscv/configs/nommu_k210_defconfig |   7 +-
>>  arch/riscv/include/asm/cacheinfo.h      |  15 ++
>>  arch/riscv/include/asm/gdb_xml.h        | 117 ++++++++++
>>  arch/riscv/include/asm/kdebug.h         |  12 +
>>  arch/riscv/include/asm/kgdb.h           | 112 +++++++++
>>  arch/riscv/include/asm/parse_asm.h      | 219 ++++++++++++++++++
>>  arch/riscv/include/asm/patch.h          |   4 +-
>>  arch/riscv/include/asm/soc.h            |  39 ++++
>>  arch/riscv/kernel/Makefile              |   1 +
>>  arch/riscv/kernel/cacheinfo.c           |  17 ++
>>  arch/riscv/kernel/ftrace.c              |  15 +-
>>  arch/riscv/kernel/head.S                |  11 +-
>>  arch/riscv/kernel/kgdb.c                | 390 ++++++++++++++++++++++++++++++++
>>  arch/riscv/kernel/patch.c               |  46 ++--
>>  arch/riscv/kernel/setup.c               |   4 +
>>  arch/riscv/kernel/soc.c                 |  27 +++
>>  arch/riscv/kernel/traps.c               |   5 +
>>  arch/riscv/kernel/vmlinux.lds.S         |   5 +
>>  arch/riscv/mm/init.c                    |   9 +
>>  drivers/soc/kendryte/k210-sysctl.c      |  12 +
>>  drivers/soc/sifive/sifive_l2_cache.c    |  40 +++-
>>  kernel/debug/debug_core.c               |  12 +
>>  27 files changed, 1119 insertions(+), 31 deletions(-)
>>  create mode 100644 arch/riscv/include/asm/cacheinfo.h
>>  create mode 100644 arch/riscv/include/asm/gdb_xml.h
>>  create mode 100644 arch/riscv/include/asm/kdebug.h
>>  create mode 100644 arch/riscv/include/asm/kgdb.h
>>  create mode 100644 arch/riscv/include/asm/parse_asm.h
>>  create mode 100644 arch/riscv/kernel/kgdb.c
>>
Vincent Chen June 5, 2020, 2:08 a.m. UTC | #3
On Fri, Jun 5, 2020 at 4:15 AM Palmer Dabbelt <palmer@dabbelt.com> wrote:
>
> On Thu, 04 Jun 2020 12:50:13 PDT (-0700), atishp@atishpatra.org wrote:
> > On Thu, Jun 4, 2020 at 11:57 AM Palmer Dabbelt <palmer@dabbelt.com> wrote:
> >>
> >> The following changes since commit b9bbe6ed63b2b9f2c9ee5cbd0f2c946a2723f4ce:
> >>
> >>   Linux 5.7-rc6 (2020-05-17 16:48:37 -0700)
> >>
> >> are available in the Git repository at:
> >>
> >>   git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0
> >>
> >> for you to fetch changes up to 09c0533d129ce460e6214c14f744ddbac3733889:
> >>
> >>   soc: sifive: l2 cache: Mark l2_get_priv_group as static (2020-05-28 15:57:49 -0700)
> >>
> >> ----------------------------------------------------------------
> >> RISC-V Patches for the 5.8 Merge Window, Part 1
> >>
> >> * The remainder of the code necessary to support the Kendryte K210.
> >>     * Support for building device trees into the kernel, as the K210 doesn't
> >>       have a bootloader that provides one.
> >>     * A K210 device tree and the associated defconfig update.
> >>     * Support for skipping PMP initialization on systems that trap on PMP
> >>       accesses rather than treating them as WARL.
> >> * Support for KGDB.
> >> * Improvements to text patching.
> >> * Some cleanups to the SiFive L2 cache driver.
> >>
> >> I may have a second part, but I wanted to get this out earlier rather than
> >> later as they've been ready to go for a while now.
> >>
> > Hi Palmer,
> > Can you also add the run time cpu hotplug fix patch if it is not too late?
> >
> > https://patchwork.kernel.org/patch/11581221/
> >
> > Without the patch, cpu hotplug will broken for 5.8-rc1 too.
>
> It looks like there's enough to warrant a part 2 (that fix, the vDSO stuff,
> some Kconfig stuff, and the interrupt stuff).  Some of that was held back to
> avoid conflicts, so it'd be easier for me if this just goes in as-is and I can
> start putting together another PR based on the post-merge commit.
>
> >> ----------------------------------------------------------------
> >> Damien Le Moal (1):
> >>       riscv: K210: Update defconfig
> >>
> >> Palmer Dabbelt (5):
> >>       riscv: Allow device trees to be built into the kernel
> >>       riscv: K210: Add a built-in device tree
> >>       RISC-V: Skip setting up PMPs on traps
> >>       soc: sifive: l2 cache: Eliminate an unsigned zero compare warning
> >>       soc: sifive: l2 cache: Mark l2_get_priv_group as static
> >>
> >> Vincent Chen (4):
> >>       kgdb: Add kgdb_has_hit_break function
> >>       riscv: Add KGDB support
> >>       riscv: Use the XML target descriptions to report 3 system registers
> >>       riscv: Add SW single-step support for KDB
> >>
Hi Palmer:
The "kgdb: enable arch to support XML packet support." patch seems to
be missing in this pull request. By the way, I recently sent the v5
KGDB patch set to fix some compile warning reported by Kbuild system
and select CONFIG ARCH_OPTIONAL_KERNEL_RWX in Kconfig to enable KGDB
to insert software breakpoints. If the v5 KGDB patch set is OK for
you, could you replace it with the v5 KGDB patch set?
Thank you.

> >> Yash Shah (2):
> >>       riscv: cacheinfo: Implement cache_get_priv_group with a generic ops structure
> >>       riscv: Add support to determine no. of L2 cache way enabled
> >>
> >> Zong Li (3):
> >>       riscv: Remove the 'riscv_' prefix of function name
> >>       riscv: Use NOKPROBE_SYMBOL() instead of __krpobes annotation
> >>       riscv: Use text_mutex instead of patch_lock
> >>
> >>  arch/riscv/Kbuild                       |   1 +
> >>  arch/riscv/Kconfig                      |   7 +
> >>  arch/riscv/Kconfig.socs                 |  17 +-
> >>  arch/riscv/boot/dts/Makefile            |   2 +
> >>  arch/riscv/boot/dts/kendryte/Makefile   |   4 +-
> >>  arch/riscv/configs/nommu_k210_defconfig |   7 +-
> >>  arch/riscv/include/asm/cacheinfo.h      |  15 ++
> >>  arch/riscv/include/asm/gdb_xml.h        | 117 ++++++++++
> >>  arch/riscv/include/asm/kdebug.h         |  12 +
> >>  arch/riscv/include/asm/kgdb.h           | 112 +++++++++
> >>  arch/riscv/include/asm/parse_asm.h      | 219 ++++++++++++++++++
> >>  arch/riscv/include/asm/patch.h          |   4 +-
> >>  arch/riscv/include/asm/soc.h            |  39 ++++
> >>  arch/riscv/kernel/Makefile              |   1 +
> >>  arch/riscv/kernel/cacheinfo.c           |  17 ++
> >>  arch/riscv/kernel/ftrace.c              |  15 +-
> >>  arch/riscv/kernel/head.S                |  11 +-
> >>  arch/riscv/kernel/kgdb.c                | 390 ++++++++++++++++++++++++++++++++
> >>  arch/riscv/kernel/patch.c               |  46 ++--
> >>  arch/riscv/kernel/setup.c               |   4 +
> >>  arch/riscv/kernel/soc.c                 |  27 +++
> >>  arch/riscv/kernel/traps.c               |   5 +
> >>  arch/riscv/kernel/vmlinux.lds.S         |   5 +
> >>  arch/riscv/mm/init.c                    |   9 +
> >>  drivers/soc/kendryte/k210-sysctl.c      |  12 +
> >>  drivers/soc/sifive/sifive_l2_cache.c    |  40 +++-
> >>  kernel/debug/debug_core.c               |  12 +
> >>  27 files changed, 1119 insertions(+), 31 deletions(-)
> >>  create mode 100644 arch/riscv/include/asm/cacheinfo.h
> >>  create mode 100644 arch/riscv/include/asm/gdb_xml.h
> >>  create mode 100644 arch/riscv/include/asm/kdebug.h
> >>  create mode 100644 arch/riscv/include/asm/kgdb.h
> >>  create mode 100644 arch/riscv/include/asm/parse_asm.h
> >>  create mode 100644 arch/riscv/kernel/kgdb.c
> >>
>
pr-tracker-bot@kernel.org June 5, 2020, 3:30 a.m. UTC | #4
The pull request you sent on Thu, 04 Jun 2020 11:57:25 -0700 (PDT):

> git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git tags/riscv-for-linus-5.8-mw0

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/435faf5c218a47fd6258187f62d9bb1009717896

Thank you!