linux-kernel - [PATCH] tools: riscv: Fixed misalignment of CSR related definitions

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Message-ID: <20251114071215.816-1-cp0613@linux.alibaba.com>
Date: Fri, 14 Nov 2025 15:12:15 +0800
From: cp0613@...ux.alibaba.com
To: anup@...infault.org,
	atish.patra@...ux.dev,
	pjw@...nel.org,
	haibo1.xu@...el.com,
	guoren@...nel.org
Cc: linux-riscv@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Chen Pei <cp0613@...ux.alibaba.com>
Subject: [PATCH] tools: riscv: Fixed misalignment of CSR related definitions

From: Chen Pei <cp0613@...ux.alibaba.com>

The file tools/arch/riscv/include/asm/csr.h borrows from
arch/riscv/include/asm/csr.h, and subsequent modifications
related to CSR should maintain consistency.

Fixes: 16b0bde9a37c ("RISC-V: KVM: Add perf sampling support for guests")
Fixes: d1927f64e0e1 ("RISC-V: Fix the typo in Scountovf CSR name")

Signed-off-by: Chen Pei <cp0613@...ux.alibaba.com>
---
 drivers/perf/riscv_pmu_sbi.c       | 2 +-
 tools/arch/riscv/include/asm/csr.h | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/perf/riscv_pmu_sbi.c b/drivers/perf/riscv_pmu_sbi.c
index e255c1b069ec..7dd282da67ce 100644
--- a/drivers/perf/riscv_pmu_sbi.c
+++ b/drivers/perf/riscv_pmu_sbi.c
@@ -1109,7 +1109,7 @@ static irqreturn_t pmu_sbi_ovf_handler(int irq, void *dev)
 			/* compute hardware counter index */
 			hidx = info->csr - CSR_CYCLE;
 
-		/* check if the corresponding bit is set in sscountovf or overflow mask in shmem */
+		/* check if the corresponding bit is set in scountovf or overflow mask in shmem */
 		if (!(overflow & BIT(hidx)))
 			continue;
 
diff --git a/tools/arch/riscv/include/asm/csr.h b/tools/arch/riscv/include/asm/csr.h
index 56d7367ee344..21d8cee04638 100644
--- a/tools/arch/riscv/include/asm/csr.h
+++ b/tools/arch/riscv/include/asm/csr.h
@@ -167,7 +167,8 @@
 #define VSIP_TO_HVIP_SHIFT	(IRQ_VS_SOFT - IRQ_S_SOFT)
 #define VSIP_VALID_MASK		((_AC(1, UL) << IRQ_S_SOFT) | \
 				 (_AC(1, UL) << IRQ_S_TIMER) | \
-				 (_AC(1, UL) << IRQ_S_EXT))
+				 (_AC(1, UL) << IRQ_S_EXT) | \
+				 (_AC(1, UL) << IRQ_PMU_OVF))
 
 /* AIA CSR bits */
 #define TOPI_IID_SHIFT		16
@@ -280,7 +281,7 @@
 #define CSR_HPMCOUNTER30H	0xc9e
 #define CSR_HPMCOUNTER31H	0xc9f
 
-#define CSR_SSCOUNTOVF		0xda0
+#define CSR_SCOUNTOVF		0xda0
 
 #define CSR_SSTATUS		0x100
 #define CSR_SIE			0x104
-- 
2.50.1