[PATCH 00/17] Prctl to enable vector commands, previous vector patches rebased

[Heiko Stübner]

Am Mittwoch, 21. September 2022, 19:14:23 CEST schrieb Conor Dooley:
> On Wed, Sep 21, 2022 at 09:44:43AM -0700, Chris Stillson wrote:
> > This patch adds a prctl to enable, disable, or query whether vectors
> > are enabled or not.
> > This is to allow a process to "opt out" of the overhead incurred by
> > using vectors. Because this
> > is build on top of an existing set of patches to work with vectors,
> > they have been rebased to
> > Linux 6.0-rc1.
> 
> Hey Chris,
> Any other review aside - it looks like this patchset has been oddly
> sent. Did you by any chance copy paste the patches into gmail?
> 
> May you should speak with Atish or Palmer about how to set up your
> environment to use git send-email. "Our" tools expect that a series of
> patches is threaded so that tools like `b4` can pull the lot down
> from lore.kernel.org etc. git send-email will do that for you for free.


And it's not even limited to automated tools, also there's ease-of-use in
mail clients, as they often can do threaded views, so even with later
replies the whole thing stays together.


Heiko



> Secondly, it looks like in many of the patches you are not the author,
> so you there's a "From: blah blan <blah at blah.com>" missing from them
> which happens when you copy a patch but again send-email will sort out
> for you.
> 
> The signed-off-by chains on a lot of mails look wrong too, mostly they
> are missing your SoB since you are the sender.
> 
> Finally, please run get_maintainer.pl - there are KVM patches in here
> and you have not CCed the KVM maintainers (nor have you CCed the people
> who wrote the patches in the first place).
> 
> Reading the "submitting patches" document might be helpful to you:
> https://docs.kernel.org/process/submitting-patches.html
> 
> Thanks,
> Conor.
> 
> > 
> > 
> > Chris Stillson (1):
> >   riscv: prctl to enable vector commands
> > 
> > Greentime Hu (9):
> >   riscv: Add new csr defines related to vector extension
> >   riscv: Add has_vector/riscv_vsize to save vector features.
> >   riscv: Add vector struct and assembler definitions
> >   riscv: Add task switch support for vector
> >   riscv: Add ptrace vector support
> >   riscv: Add sigcontext save/restore for vector
> >   riscv: Add support for kernel mode vector
> >   riscv: Add vector extension XOR implementation
> >   riscv: Fix a kernel panic issue if $s2 is set to a specific value
> >     before entering Linux
> > 
> > Guo Ren (4):
> >   riscv: Rename __switch_to_aux -> fpu
> >   riscv: Extending cpufeature.c to detect V-extension
> >   riscv: Add vector feature to compile
> >   riscv: Reset vector register
> > 
> > Vincent Chen (3):
> >   riscv: signal: Report signal frame size to userspace via auxv
> >   riscv: Add V extension to KVM ISA allow list
> >   riscv: KVM: Add vector lazy save/restore support
> > 
> >  arch/riscv/Kconfig                       |  15 +-
> >  arch/riscv/Makefile                      |   1 +
> >  arch/riscv/configs/defconfig             |   6 +
> >  arch/riscv/include/asm/csr.h             |  16 ++-
> >  arch/riscv/include/asm/elf.h             |  47 +++---
> >  arch/riscv/include/asm/hwcap.h           |   1 +
> >  arch/riscv/include/asm/kvm_host.h        |   2 +
> >  arch/riscv/include/asm/kvm_vcpu_vector.h |  65 +++++++++
> >  arch/riscv/include/asm/processor.h       |   9 ++
> >  arch/riscv/include/asm/switch_to.h       |  83 ++++++++++-
> >  arch/riscv/include/asm/vector.h          |  17 +++
> >  arch/riscv/include/asm/xor.h             |  82 +++++++++++
> >  arch/riscv/include/uapi/asm/auxvec.h     |   1 +
> >  arch/riscv/include/uapi/asm/hwcap.h      |   1 +
> >  arch/riscv/include/uapi/asm/kvm.h        |   7 +
> >  arch/riscv/include/uapi/asm/ptrace.h     |  23 +++
> >  arch/riscv/include/uapi/asm/sigcontext.h |  24 ++++
> >  arch/riscv/kernel/Makefile               |   2 +
> >  arch/riscv/kernel/asm-offsets.c          |  15 ++
> >  arch/riscv/kernel/cpufeature.c           |  21 +++
> >  arch/riscv/kernel/entry.S                |   6 +-
> >  arch/riscv/kernel/head.S                 |  37 ++++-
> >  arch/riscv/kernel/kernel_mode_vector.c   | 132 +++++++++++++++++
> >  arch/riscv/kernel/process.c              |  61 ++++++++
> >  arch/riscv/kernel/ptrace.c               |  71 ++++++++++
> >  arch/riscv/kernel/riscv_ksyms.c          |   6 +
> >  arch/riscv/kernel/signal.c               | 173 ++++++++++++++++++++++-
> >  arch/riscv/kernel/vector.S               | 102 +++++++++++++
> >  arch/riscv/kvm/Makefile                  |   1 +
> >  arch/riscv/kvm/vcpu.c                    |  32 +++++
> >  arch/riscv/kvm/vcpu_switch.S             |  69 +++++++++
> >  arch/riscv/kvm/vcpu_vector.c             | 173 +++++++++++++++++++++++
> >  arch/riscv/lib/Makefile                  |   1 +
> >  arch/riscv/lib/xor.S                     |  81 +++++++++++
> >  include/uapi/linux/elf.h                 |   1 +
> >  include/uapi/linux/prctl.h               |   6 +
> >  kernel/sys.c                             |   7 +
> >  37 files changed, 1355 insertions(+), 42 deletions(-)
> >  create mode 100644 arch/riscv/include/asm/kvm_vcpu_vector.h
> >  create mode 100644 arch/riscv/include/asm/vector.h
> >  create mode 100644 arch/riscv/include/asm/xor.h
> >  create mode 100644 arch/riscv/kernel/kernel_mode_vector.c
> >  create mode 100644 arch/riscv/kernel/vector.S
> >  create mode 100644 arch/riscv/kvm/vcpu_vector.c
> >  create mode 100644 arch/riscv/lib/xor.S
> > 
> > --
> > 2.25.1
> > 
> > _______________________________________________
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> > linux-riscv at lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/linux-riscv
> 
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