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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


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WARNING: multiple messages have this Message-ID (diff)
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


             reply	other threads:[~2026-01-22  2:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-22  2:38 Austin Kim [this message]
2026-01-22  2:38 ` [PATCH] riscv: Add macros for software check and hardware error exception codes Austin Kim
2026-01-24  7:57 ` Paul Walmsley
2026-01-24  7:57   ` Paul Walmsley
2026-01-26  9:39   ` Austin Kim
2026-01-26  9:39     ` Austin Kim

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