From: Eric Chan <ericchancf@google.com>
To: paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
ericchancf@google.com
Subject: [PATCH v5 1/4] riscv/barrier: Define __{mb,rmb,wmb}
Date: Tue, 13 Feb 2024 22:39:09 +0000 [thread overview]
Message-ID: <20240213223909.2596587-1-ericchancf@google.com> (raw)
In-Reply-To: <20240213223810.2595804-1-ericchancf@google.com>
Introduce __{mb,rmb,wmb}, and rely on the generic definitions for
{mb,rmb,wmb}. Although KCSAN is not yet support, it can be made more
consistent with generic instrumentation.
Signed-off-by: Eric Chan <ericchancf@google.com>
---
arch/riscv/include/asm/barrier.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/include/asm/barrier.h b/arch/riscv/include/asm/barrier.h
index 110752594228..4c49a8ff2c68 100644
--- a/arch/riscv/include/asm/barrier.h
+++ b/arch/riscv/include/asm/barrier.h
@@ -20,9 +20,9 @@
__asm__ __volatile__ ("fence " #p "," #s : : : "memory")
/* These barriers need to enforce ordering on both devices or memory. */
-#define mb() RISCV_FENCE(iorw,iorw)
-#define rmb() RISCV_FENCE(ir,ir)
-#define wmb() RISCV_FENCE(ow,ow)
+#define __mb() RISCV_FENCE(iorw,iorw)
+#define __rmb() RISCV_FENCE(ir,ir)
+#define __wmb() RISCV_FENCE(ow,ow)
/* These barriers do not need to enforce ordering on devices, just memory. */
#define __smp_mb() RISCV_FENCE(rw,rw)
--
2.43.0.687.g38aa6559b0-goog
next prev parent reply other threads:[~2024-02-13 22:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-13 22:38 [PATCH v5 0/4] riscv/barrier: tidying up barrier-related macro Eric Chan
2024-02-13 22:39 ` Eric Chan [this message]
2024-02-16 20:30 ` [PATCH v5 1/4] riscv/barrier: Define __{mb,rmb,wmb} Andrea Parri
2024-02-13 22:39 ` [PATCH v5 2/4] riscv/barrier: Define RISCV_FULL_BARRIER Eric Chan
2024-02-13 22:39 ` [PATCH v5 3/4] riscv/barrier: Consolidate fence definitions Eric Chan
2024-02-13 22:40 ` [PATCH v5 4/4] riscv/barrier: Resolve checkpatch.pl error Eric Chan
2024-02-16 21:05 ` Andrea Parri
2024-02-17 13:07 ` Eric Chan
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