From: sxwjean@me.com
To: linuxppc-dev@lists.ozlabs.org
Cc: oleg@redhat.com, mpe@ellerman.id.au, benh@kernel.crashing.org,
paulus@samba.org, ravi.bangoria@linux.ibm.com,
christophe.leroy@csgroup.eu, npiggin@gmail.com,
aneesh.kumar@linux.ibm.com, sandipan@linux.ibm.com,
efremov@linux.com, peterx@redhat.com, akpm@linux-foundation.org,
linux-kernel@vger.kernel.org, Xiongwei Song <sxwjean@gmail.com>
Subject: [RFC PATCH 2/4] powerpc/64e: Get esr offset with _ESR macro
Date: Mon, 26 Jul 2021 22:30:51 +0800 [thread overview]
Message-ID: <20210726143053.532839-2-sxwjean@me.com> (raw)
In-Reply-To: <20210726143053.532839-1-sxwjean@me.com>
From: Xiongwei Song <sxwjean@gmail.com>
Use _ESR to get the offset of esr register in pr_regs for 64e cpus.
Signed-off-by: Xiongwei Song <sxwjean@gmail.com>
---
arch/powerpc/kernel/asm-offsets.c | 2 +-
arch/powerpc/kernel/exceptions-64e.S | 10 +++++-----
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index a47eefa09bcb..f4ebc435fd78 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -287,6 +287,7 @@ int main(void)
STACK_PT_REGS_OFFSET(_XER, xer);
STACK_PT_REGS_OFFSET(_DAR, dar);
STACK_PT_REGS_OFFSET(_DSISR, dsisr);
+ STACK_PT_REGS_OFFSET(_ESR, esr);
STACK_PT_REGS_OFFSET(ORIG_GPR3, orig_gpr3);
STACK_PT_REGS_OFFSET(RESULT, result);
STACK_PT_REGS_OFFSET(_TRAP, trap);
@@ -298,7 +299,6 @@ int main(void)
* we use them to hold SRR0 and SRR1.
*/
STACK_PT_REGS_OFFSET(_DEAR, dar);
- STACK_PT_REGS_OFFSET(_ESR, dsisr);
#else /* CONFIG_PPC64 */
STACK_PT_REGS_OFFSET(SOFTE, softe);
STACK_PT_REGS_OFFSET(_PPR, ppr);
diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 1401787b0b93..bf8c4c2f98ea 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -546,7 +546,7 @@ __end_interrupts:
mfspr r14,SPRN_DEAR
mfspr r15,SPRN_ESR
std r14,_DAR(r1)
- std r15,_DSISR(r1)
+ std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
EXCEPTION_COMMON(0x300)
@@ -559,7 +559,7 @@ __end_interrupts:
li r15,0
mr r14,r10
std r14,_DAR(r1)
- std r15,_DSISR(r1)
+ std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
EXCEPTION_COMMON(0x400)
@@ -576,7 +576,7 @@ __end_interrupts:
mfspr r14,SPRN_DEAR
mfspr r15,SPRN_ESR
std r14,_DAR(r1)
- std r15,_DSISR(r1)
+ std r15,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
ld r15,PACA_EXGEN+EX_R15(r13)
EXCEPTION_COMMON(0x600)
@@ -587,7 +587,7 @@ __end_interrupts:
NORMAL_EXCEPTION_PROLOG(0x700, BOOKE_INTERRUPT_PROGRAM,
PROLOG_ADDITION_1REG)
mfspr r14,SPRN_ESR
- std r14,_DSISR(r1)
+ std r14,_ESR(r1)
ld r14,PACA_EXGEN+EX_R14(r13)
EXCEPTION_COMMON(0x700)
addi r3,r1,STACK_FRAME_OVERHEAD
@@ -1058,7 +1058,7 @@ bad_stack_book3e:
mfspr r10,SPRN_DEAR
mfspr r11,SPRN_ESR
std r10,_DAR(r1)
- std r11,_DSISR(r1)
+ std r11,_ESR(r1)
std r0,GPR0(r1); /* save r0 in stackframe */ \
std r2,GPR2(r1); /* save r2 in stackframe */ \
SAVE_4GPRS(3, r1); /* save r3 - r6 in stackframe */ \
--
2.30.2
next prev parent reply other threads:[~2021-07-26 14:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-26 14:30 [RFC PATCH 1/4] powerpc: Optimize register usage for esr register sxwjean
2021-07-26 14:30 ` sxwjean [this message]
2021-07-26 14:30 ` [RFC PATCH 3/4] powerpc: Optimize register usage for dear register sxwjean
2021-08-05 10:09 ` Christophe Leroy
2021-08-06 3:16 ` Xiongwei Song
2021-07-26 14:30 ` [RFC PATCH 4/4] powerpc/64e: Get dear offset with _DEAR macro sxwjean
2021-08-05 10:06 ` [RFC PATCH 1/4] powerpc: Optimize register usage for esr register Christophe Leroy
2021-08-06 3:16 ` Xiongwei Song
2021-08-06 7:32 ` Christophe Leroy
2021-08-06 13:22 ` Xiongwei Song
2021-08-06 6:53 ` Michael Ellerman
2021-08-06 13:14 ` Xiongwei Song
2021-08-06 14:26 ` Segher Boessenkool
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210726143053.532839-2-sxwjean@me.com \
--to=sxwjean@me.com \
--cc=akpm@linux-foundation.org \
--cc=aneesh.kumar@linux.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=christophe.leroy@csgroup.eu \
--cc=efremov@linux.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=mpe@ellerman.id.au \
--cc=npiggin@gmail.com \
--cc=oleg@redhat.com \
--cc=paulus@samba.org \
--cc=peterx@redhat.com \
--cc=ravi.bangoria@linux.ibm.com \
--cc=sandipan@linux.ibm.com \
--cc=sxwjean@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).