From: Uros Bizjak <ubizjak@gmail.com>
To: linux-kernel@vger.kernel.org, x86@kernel.org
Cc: Uros Bizjak <ubizjak@gmail.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@kernel.org>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH 1/2] x86/percpu: Rename percpu_stable_op() to __raw_cpu_read_stable()
Date: Mon, 20 May 2024 10:09:24 +0200 [thread overview]
Message-ID: <20240520080951.121049-1-ubizjak@gmail.com> (raw)
Rename percpu_stable_op() to __raw_cpu_read_stable() to be
in line with other read/write percpu accessors.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
---
arch/x86/include/asm/percpu.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index c77393cd0273..39762fcfe328 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -190,10 +190,10 @@ do { \
#endif /* CONFIG_USE_X86_SEG_SUPPORT */
-#define percpu_stable_op(size, op, _var) \
+#define __raw_cpu_read_stable(size, _var) \
({ \
__pcpu_type_##size pfo_val__; \
- asm(__pcpu_op2_##size(op, __force_percpu_arg(a[var]), "%[val]") \
+ asm(__pcpu_op2_##size("mov", __force_percpu_arg(a[var]), "%[val]") \
: [val] __pcpu_reg_##size("=", pfo_val__) \
: [var] "i" (&(_var))); \
(typeof(_var))(unsigned long) pfo_val__; \
@@ -480,9 +480,9 @@ do { \
#define this_cpu_read_const(pcp) __raw_cpu_read_const(pcp)
-#define this_cpu_read_stable_1(pcp) percpu_stable_op(1, "mov", pcp)
-#define this_cpu_read_stable_2(pcp) percpu_stable_op(2, "mov", pcp)
-#define this_cpu_read_stable_4(pcp) percpu_stable_op(4, "mov", pcp)
+#define this_cpu_read_stable_1(pcp) __raw_cpu_read_stable(1, pcp)
+#define this_cpu_read_stable_2(pcp) __raw_cpu_read_stable(2, pcp)
+#define this_cpu_read_stable_4(pcp) __raw_cpu_read_stable(4, pcp)
#define raw_cpu_add_1(pcp, val) percpu_add_op(1, , (pcp), val)
#define raw_cpu_add_2(pcp, val) percpu_add_op(2, , (pcp), val)
@@ -535,7 +535,7 @@ do { \
* 32 bit must fall back to generic operations.
*/
#ifdef CONFIG_X86_64
-#define this_cpu_read_stable_8(pcp) percpu_stable_op(8, "mov", pcp)
+#define this_cpu_read_stable_8(pcp) __raw_cpu_read_stable(8, pcp)
#define raw_cpu_add_8(pcp, val) percpu_add_op(8, , (pcp), val)
#define raw_cpu_and_8(pcp, val) percpu_binary_op(8, , "and", (pcp), val)
--
2.45.1
next reply other threads:[~2024-05-20 8:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-20 8:09 Uros Bizjak [this message]
2024-05-20 8:09 ` [PATCH 2/2] x86/percpu: Move some percpu accessors around to reduce ifdeffery Uros Bizjak
2024-05-21 8:21 ` [tip: x86/percpu] " tip-bot2 for Uros Bizjak
2024-05-21 8:21 ` [tip: x86/percpu] x86/percpu: Rename percpu_stable_op() to __raw_cpu_read_stable() tip-bot2 for Uros Bizjak
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