From: Paul Walmsley <pjw@kernel.org>
To: "Radim Krčmář" <rkrcmar@ventanamicro.com>, rkrcmar@qti.qualcomm.com
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
"Paul Walmsley" <paul.walmsley@sifive.com>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Alexandre Ghiti" <alex@ghiti.fr>,
"Atish Patra" <atishp@rivosinc.com>,
"Andrew Jones" <ajones@ventanamicro.com>,
"Clément Léger" <cleger@rivosinc.com>,
"Anup Patel" <apatel@ventanamicro.com>,
"Thomas Weißschuh" <thomas.weissschuh@linutronix.de>,
"David Laight" <david.laight.linux@gmail.com>
Subject: Re: [PATCH v2 2/2] RISC-V: make use of variadic sbi_ecall
Date: Tue, 6 Oct 2026 03:55:12 -0600 (MDT) [thread overview]
Message-ID: <650d23e8-b51b-85da-f9f3-52a06fed81e5@kernel.org> (raw)
In-Reply-To: <20250619190315.2603194-3-rkrcmar@ventanamicro.com>
[-- Attachment #1: Type: text/plain, Size: 739 bytes --]
On Thu, 19 Jun 2025, Radim Krčmář wrote:
> The new sbi_ecall doesn't have to list all 8 arguments anymore, so only
> pass the actual numbers of arguments for each SBI function.
>
> The remaining trailing 0 are intentional as they represent an argument.
>
> SBI 0.1 shouldn't be using the sbi_ecall, because it's only for 0.2+,
> but allow it by passing 0 is the reserved register.
>
> Signed-off-by: Radim Krčmář <rkrcmar@ventanamicro.com>
Thanks, queued for v7.4.
For everyone, not just Radim - probably it's worth looking through the
codebase to convert any SBI ecalls that were added over the past year that
weren't covered by this patch (e.g., the MPXY drivers) and to doublecheck
the overall argument counts.
- Paul
next prev parent reply other threads:[~2026-10-06 9:55 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-19 19:03 [PATCH v2 0/2] RISC-V: turn sbi_ecall into a variadic macro Radim Krčmář
2025-06-19 19:03 ` [PATCH v2 1/2] RISC-V: sbi: turn sbi_ecall into " Radim Krčmář
2026-10-06 9:47 ` Paul Walmsley
2025-06-19 19:03 ` [PATCH v2 2/2] RISC-V: make use of variadic sbi_ecall Radim Krčmář
2026-10-06 9:55 ` Paul Walmsley [this message]
2026-10-07 9:28 ` Radim Krcmar
2025-06-19 19:03 ` [PATCH v2 3/2] RISC-V: sbi: remove sbi_ecall tracepoints Radim Krčmář
2025-06-23 22:54 ` Palmer Dabbelt
2025-06-24 13:09 ` Radim Krčmář
2025-06-25 7:51 ` Radim Krčmář
2025-06-25 8:34 ` David Laight
2025-06-26 8:10 ` Radim Krčmář
2025-06-23 22:53 ` [PATCH v2 0/2] RISC-V: turn sbi_ecall into a variadic macro Palmer Dabbelt
2025-06-24 8:09 ` David Laight
2025-06-24 12:40 ` Radim Krčmář
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