leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/vdso: Move cvdso_call macro into gettimeofday.S

Browse Source 
Now that gettimeofday.S is unique, move cvdso_call macro
into that file which is the only user.

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/72720359d4c58e3a3b96dd74952741225faac3de.1642782130.git.christophe.leroy@csgroup.eu
This commit is contained in:
Christophe Leroy 2022-01-21 16:30:34 +00:00 committed by Michael Ellerman
parent 9b97bea900
commit 692b21d780
2 changed files with 45 additions and 51 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
arch/powerpc/include/asm/vdso/gettimeofday.h
View File

@ -2,57 +2,9 @@
#ifndef _ASM_POWERPC_VDSO_GETTIMEOFDAY_H
#define _ASM_POWERPC_VDSO_GETTIMEOFDAY_H
#ifndef __ASSEMBLY__
#include <asm/page.h>
#ifdef __ASSEMBLY__
#include <asm/ppc_asm.h>
/*
* The macro sets two stack frames, one for the caller and one for the callee
* because there are no requirement for the caller to set a stack frame when
* calling VDSO so it may have omitted to set one, especially on PPC64
*/
.macro cvdso_call funct call_time=0
.cfi_startproc
PPC_STLU r1, -PPC_MIN_STKFRM(r1)
mflr r0
.cfi_register lr, r0
PPC_STLU r1, -PPC_MIN_STKFRM(r1)
PPC_STL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
#ifdef __powerpc64__
PPC_STL r2, PPC_MIN_STKFRM + STK_GOT(r1)
#endif
get_datapage r5
.ifeq \call_time
addi r5, r5, VDSO_DATA_OFFSET
.else
addi r4, r5, VDSO_DATA_OFFSET
.endif
bl DOTSYM(\funct)
PPC_LL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
#ifdef __powerpc64__
PPC_LL r2, PPC_MIN_STKFRM + STK_GOT(r1)
#endif
.ifeq \call_time
cmpwi r3, 0
.endif
mtlr r0
.cfi_restore lr
addi r1, r1, 2 * PPC_MIN_STKFRM
crclr so
.ifeq \call_time
beqlr+
crset so
neg r3, r3
.endif
blr
.cfi_endproc
.endm
#else
#include <asm/vdso/timebase.h>
#include <asm/barrier.h>
#include <asm/unistd.h>

44
arch/powerpc/kernel/vdso/gettimeofday.S
View File

@ -12,7 +12,49 @@
#include <asm/vdso_datapage.h>
#include <asm/asm-offsets.h>
#include <asm/unistd.h>
#include <asm/vdso/gettimeofday.h>
/*
* The macro sets two stack frames, one for the caller and one for the callee
* because there are no requirement for the caller to set a stack frame when
* calling VDSO so it may have omitted to set one, especially on PPC64
*/
.macro cvdso_call funct call_time=0
.cfi_startproc
PPC_STLU r1, -PPC_MIN_STKFRM(r1)
mflr r0
.cfi_register lr, r0
PPC_STLU r1, -PPC_MIN_STKFRM(r1)
PPC_STL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
#ifdef __powerpc64__
PPC_STL r2, PPC_MIN_STKFRM + STK_GOT(r1)
#endif
get_datapage r5
.ifeq \call_time
addi r5, r5, VDSO_DATA_OFFSET
.else
addi r4, r5, VDSO_DATA_OFFSET
.endif
bl DOTSYM(\funct)
PPC_LL r0, PPC_MIN_STKFRM + PPC_LR_STKOFF(r1)
#ifdef __powerpc64__
PPC_LL r2, PPC_MIN_STKFRM + STK_GOT(r1)
#endif
.ifeq \call_time
cmpwi r3, 0
.endif
mtlr r0
.cfi_restore lr
addi r1, r1, 2 * PPC_MIN_STKFRM
crclr so
.ifeq \call_time
beqlr+
crset so
neg r3, r3
.endif
blr
.cfi_endproc
.endm
.text
/*