From: Palmer Dabbelt <palmer@rivosinc.com>
To: Evan Green <evan@rivosinc.com>
Cc: slewis@rivosinc.com, heiko@sntech.de,
Conor Dooley <conor@kernel.org>,
Vineet Gupta <vineetg@rivosinc.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Andrew Bresticker <abrestic@rivosinc.com>,
Andrew Jones <ajones@ventanamicro.com>,
Andrew Morton <akpm@linux-foundation.org>,
Anup Patel <apatel@ventanamicro.com>,
Atish Patra <atishp@rivosinc.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Celeste Liu <coelacanthus@outlook.com>,
Conor Dooley <conor.dooley@microchip.com>,
Guo Ren <guoren@kernel.org>, Heiko Carstens <hca@linux.ibm.com>,
Heiko Stuebner <heiko.stuebner@vrull.eu>,
Jann Horn <jannh@google.com>, Jisheng Zhang <jszhang@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
Ley Foon Tan <leyfoon.tan@starfivetech.com>,
"Liam R. Howlett" <Liam.Howlett@Oracle.com>,
Mark Brown <broonie@kernel.org>,
Mike Kravetz <mike.kravetz@oracle.com>,
Nathan Chancellor <nathan@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Philipp Tomsich <philipp.tomsich@vrull.eu>,
Samuel Holland <samuel@sholland.org>,
Shuah Khan <shuah@kernel.org>,
Sunil V L <sunilvl@ventanamicro.com>,
Tobias Klauser <tklauser@distanz.ch>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH v6 0/6] RISC-V Hardware Probing User Interface
Date: Thu, 20 Apr 2023 10:36:25 -0700 [thread overview]
Message-ID: <168201218504.13763.1031176103296142331.b4-ty@rivosinc.com> (raw)
In-Reply-To: <20230407231103.2622178-1-evan@rivosinc.com>
On Fri, 07 Apr 2023 16:10:57 -0700, Evan Green wrote:
> There's been a bunch of off-list discussions about this, including at
> Plumbers. The original plan was to do something involving providing an
> ISA string to userspace, but ISA strings just aren't sufficient for a
> stable ABI any more: in order to parse an ISA string users need the
> version of the specifications that the string is written to, the version
> of each extension (sometimes at a finer granularity than the RISC-V
> releases/versions encode), and the expected use case for the ISA string
> (ie, is it a U-mode or M-mode string). That's a lot of complexity to
> try and keep ABI compatible and it's probably going to continue to grow,
> as even if there's no more complexity in the specifications we'll have
> to deal with the various ISA string parsing oddities that end up all
> over userspace.
>
> [...]
Applied, thanks!
[1/6] RISC-V: Move struct riscv_cpuinfo to new header
https://git.kernel.org/palmer/c/ff77cf5b2e03
[2/6] RISC-V: Add a syscall for HW probing
https://git.kernel.org/palmer/c/ea3de9ce8aa2
[3/6] RISC-V: hwprobe: Add support for RISCV_HWPROBE_BASE_BEHAVIOR_IMA
https://git.kernel.org/palmer/c/00e76e2c6a2b
[4/6] RISC-V: hwprobe: Support probing of misaligned access performance
https://git.kernel.org/palmer/c/62a31d6e38bd
[5/6] selftests: Test the new RISC-V hwprobe interface
https://git.kernel.org/palmer/c/287dcc2b0c83
[6/6] RISC-V: Add hwprobe vDSO function and data
https://git.kernel.org/palmer/c/aa5af0aa90ba
Best regards,
--
Palmer Dabbelt <palmer@rivosinc.com>
prev parent reply other threads:[~2023-04-20 17:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-07 23:10 [PATCH v6 0/6] RISC-V Hardware Probing User Interface Evan Green
2023-04-07 23:10 ` [PATCH v6 1/6] RISC-V: Move struct riscv_cpuinfo to new header Evan Green
2023-04-19 14:30 ` patchwork-bot+linux-riscv
2023-04-07 23:10 ` [PATCH v6 2/6] RISC-V: Add a syscall for HW probing Evan Green
2023-04-07 23:11 ` [PATCH v6 3/6] RISC-V: hwprobe: Add support for RISCV_HWPROBE_BASE_BEHAVIOR_IMA Evan Green
2023-04-14 1:37 ` Paul Walmsley
2023-04-07 23:11 ` [PATCH v6 4/6] RISC-V: hwprobe: Support probing of misaligned access performance Evan Green
2023-04-11 14:06 ` Conor Dooley
2023-04-12 13:50 ` Paul Walmsley
2023-04-07 23:11 ` [PATCH v6 5/6] selftests: Test the new RISC-V hwprobe interface Evan Green
2023-04-07 23:11 ` [PATCH v6 6/6] RISC-V: Add hwprobe vDSO function and data Evan Green
2023-04-11 14:16 ` [PATCH v6 0/6] RISC-V Hardware Probing User Interface Conor Dooley
2023-04-20 17:36 ` Palmer Dabbelt [this message]
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