From: Heiko Carstens <hca@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>,
Mete Durlu <meted@linux.ibm.com>,
Peter Zijlstra <peterz@infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
Juergen Christ <jchrist@linux.ibm.com>,
Ilya Leoshkevich <iii@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH 06/12] s390/percpu: Rename inline assembly symbolic names
Date: Thu, 17 Sep 2026 21:22:31 +0200 [thread overview]
Message-ID: <20260917192237.638324-7-hca@linux.ibm.com> (raw)
In-Reply-To: <20260917192237.638324-1-hca@linux.ibm.com>
Rename perpcu inline assembly symbolic names so they match (more) what is
specified with input operands. A trivial change which is supposed to make
the code a bit more readable.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
arch/s390/include/asm/percpu.h | 60 +++++++++++++++++-----------------
1 file changed, 30 insertions(+), 30 deletions(-)
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 770fe4be65dc..0df47ec2e6c7 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -151,29 +151,29 @@ do { \
if (__builtin_constant_p(val__) && \
((szcast)val__ > -129) && ((szcast)val__ < 128)) { \
asm volatile( \
- MVIY_PERCPU("%[disppcpr]","%[ptr__]") \
- AG_ALT("%[disppcpo]", "%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]","%[ptr__]") \
+ AG_ALT("%[lcoff]", "%[ptr__]") \
op2 " 0(%[ptr__]),%[val__]\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [ptr__] "+&a" (ptr__), "+m" (*ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
: [val__] "i" ((szcast)val__), \
- [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
} else { \
asm volatile( \
- MVIY_PERCPU("%[disppcpr]", "%[ptr__]") \
- AG_ALT("%[disppcpo]", "%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]", "%[ptr__]") \
+ AG_ALT("%[lcoff]", "%[ptr__]") \
op1 " %[old__],%[val__],0(%[ptr__])\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [old__] "=&d" (old__), \
[ptr__] "+&a" (ptr__), "+m" (*ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
: [val__] "d" (val__), \
- [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
} \
@@ -190,16 +190,16 @@ do { \
\
ptr__ = PERCPU_PTR(&(pcp)); \
asm_inline volatile( \
- MVIY_PERCPU("%[disppcpr]","%[ptr__]") \
- AG_ALT("%[disppcpo]","%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]","%[ptr__]") \
+ AG_ALT("%[lcoff]","%[ptr__]") \
op " %[old__],%[val__],0(%[ptr__])\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [old__] "=&d" (old__), \
[ptr__] "+&a" (ptr__), "+m" (*ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
: [val__] "d" (val__), \
- [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
old__ + val__; \
@@ -216,16 +216,16 @@ do { \
\
ptr__ = PERCPU_PTR(&(pcp)); \
asm_inline volatile( \
- MVIY_PERCPU("%[disppcpr]","%[ptr__]") \
- AG_ALT("%[disppcpo]","%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]","%[ptr__]") \
+ AG_ALT("%[lcoff]","%[ptr__]") \
op " %[old__],%[val__],0(%[ptr__])\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [old__] "=&d" (old__), \
[ptr__] "+&a" (ptr__), "+m" (*ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
: [val__] "d" (val__), \
- [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
} while (0)
@@ -245,14 +245,14 @@ do { \
\
ptr__ = PERCPU_PTR(&(pcp)); \
asm_inline volatile( \
- MVIY_PERCPU("%[disppcpr]","%[ptr__]") \
- AG_ALT("%[disppcpo]","%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]","%[ptr__]") \
+ AG_ALT("%[lcoff]","%[ptr__]") \
op " %[res__],0(%[ptr__])\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [res__] "=&d" (res__), [ptr__] "+&a" (ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
- : [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ : [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (*ptr__), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
@@ -271,15 +271,15 @@ do { \
\
ptr__ = PERCPU_PTR(&(pcp)); \
asm_inline volatile( \
- MVIY_PERCPU("%[disppcpr]","%[ptr__]") \
- AG_ALT("%[disppcpo]","%[ptr__]") \
+ MVIY_PERCPU("%[lcreg]","%[ptr__]") \
+ AG_ALT("%[lcoff]","%[ptr__]") \
op " %[val__],0(%[ptr__])\n" \
- MVIY_ALT("%[disppcpr]") \
+ MVIY_ALT("%[lcreg]") \
: [ptr__] "+&a" (ptr__), "=m" (*ptr__), \
"=m" (((struct lowcore *)0)->percpu_register) \
: [val__] "d" (val__), \
- [disppcpr] "i" (LC_PERCPU_REGISTER), \
- [disppcpo] "i" (LC_PERCPU_OFFSET), \
+ [lcreg] "i" (LC_PERCPU_REGISTER), \
+ [lcoff] "i" (LC_PERCPU_OFFSET), \
"m" (((struct lowcore *)0)->percpu_offset) \
: "cc"); \
} while (0)
--
2.53.0
next prev parent reply other threads:[~2026-09-17 19:22 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-17 19:22 [PATCH 00/12] s390: More this_cpu_*() changes Heiko Carstens
2026-09-17 19:22 ` [PATCH 01/12] s390/percpu: Fix comment typo Heiko Carstens
2026-09-17 19:24 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 02/12] s390/percpu: Add sanity check to GEN_MVIY macro Heiko Carstens
2026-09-17 19:26 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 03/12] s390/lowcore: Remove _AC() from LOWCORE_ALT_ADDRESS Heiko Carstens
2026-09-17 19:29 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 04/12] s390/percpu: Let MVIY_PERCPU() calculate alternative displacement Heiko Carstens
2026-09-17 19:29 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 05/12] s390/percpu/lowcore: Add and use LC_PERCPU lowcore offset defines Heiko Carstens
2026-09-17 19:27 ` sashiko-bot
2026-09-17 19:22 ` Heiko Carstens [this message]
2026-09-17 19:25 ` [PATCH 06/12] s390/percpu: Rename inline assembly symbolic names sashiko-bot
2026-09-17 19:22 ` [PATCH 07/12] s390/percpu: Use __PCPU_BEGIN() and __PCPU_END() for inline assemblies Heiko Carstens
2026-09-17 19:26 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 08/12] s390/percpu: Use percpu code section for this_cpu_cmpxchg128() Heiko Carstens
2026-09-17 19:29 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 09/12] s390/percpu: Use percpu code section for this_cpu_xchg() Heiko Carstens
2026-09-17 19:30 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 10/12] s390/percpu: Use percpu code section for this_cpu_cmpxchg() Heiko Carstens
2026-09-17 19:31 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 11/12] s390: Add CC_HAS_ASM_M_FORMAT_FLAG config option Heiko Carstens
2026-09-17 19:32 ` sashiko-bot
2026-09-17 19:22 ` [PATCH 12/12] s390/percpu: Rework to simplify percpu_entry() and percpu_exit() Heiko Carstens
2026-09-17 19:42 ` sashiko-bot
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