From: Austin Kim <austindh.kim@gmail.com>
To: Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Alexandre Ghiti <alex@ghiti.fr>,
Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
austindh.kim@gmail.com
Subject: [PATCH] riscv: Add macros for software check and hardware error exception codes
Date: Thu, 22 Jan 2026 11:38:56 +0900 [thread overview]
Message-ID: <aXGNwBk79yMuvysm@adminpc-PowerEdge-R7525> (raw)
The latest RISC-V Privileged specification defines new synchronous
exception codes in the scause register:
18: Software check
19: Hardware error
Link: https://docs.riscv.org/reference/isa/priv/supervisor.html
- 12.1.8. Supervisor Cause (scause) Register
Add these macros for future use.
Signed-off-by: Austin Kim <austindh.kim@gmail.com>
---
arch/riscv/include/asm/csr.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 4a37a9839..5ea875813 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -108,6 +108,8 @@
#define EXC_INST_PAGE_FAULT 12
#define EXC_LOAD_PAGE_FAULT 13
#define EXC_STORE_PAGE_FAULT 15
+#define EXC_SOFTWARE_CHECK 18
+#define EXC_HARDWARE_ERROR 19
#define EXC_INST_GUEST_PAGE_FAULT 20
#define EXC_LOAD_GUEST_PAGE_FAULT 21
#define EXC_VIRTUAL_INST_FAULT 22
--
2.34.1
next reply other threads:[~2026-01-22 2:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 2:38 Austin Kim [this message]
2026-01-24 7:57 ` [PATCH] riscv: Add macros for software check and hardware error exception codes Paul Walmsley
2026-01-26 9:39 ` Austin Kim
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=aXGNwBk79yMuvysm@adminpc-PowerEdge-R7525 \
--to=austindh.kim@gmail.com \
--cc=alex@ghiti.fr \
--cc=aou@eecs.berkeley.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@dabbelt.com \
--cc=pjw@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox