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powerpc/tm: Fix GOT save offset for ABIv2

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The r2 TOC/GOT save offset is 40 on ABIv1 and 24 on ABIv2.

Signed-off-by: Anton Blanchard <anton@samba.org>
This commit is contained in:
Anton Blanchard 2014-03-10 10:52:17 +11:00
parent c2e31bdc12
commit 6403105bfd
2 changed files with 6 additions and 4 deletions
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2
arch/powerpc/include/asm/ppc_asm.h
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@ -190,8 +190,10 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
#define STK_REG(i) __STK_REG(__REG_##i)
#if defined(_CALL_ELF) && _CALL_ELF == 2
#define STK_GOT 24
#define __STK_PARAM(i) (32 + ((i)-3)*8)
#else
#define STK_GOT 40
#define __STK_PARAM(i) (48 + ((i)-3)*8)
#endif
#define STK_PARAM(i) __STK_PARAM(__REG_##i)

8
arch/powerpc/kernel/tm.S
View File

@ -107,7 +107,7 @@ _GLOBAL(tm_reclaim)
mflr r0
stw r6, 8(r1)
std r0, 16(r1)
std r2, 40(r1)
std r2, STK_GOT(r1)
stdu r1, -TM_FRAME_SIZE(r1)
/* We've a struct pt_regs at [r1+STACK_FRAME_OVERHEAD]. */
@ -288,7 +288,7 @@ dont_backup_fp:
ld r0, 16(r1)
mtcr r4
mtlr r0
ld r2, 40(r1)
ld r2, STK_GOT(r1)
/* Load system default DSCR */
ld r4, DSCR_DEFAULT@toc(r2)
@ -311,7 +311,7 @@ _GLOBAL(__tm_recheckpoint)
mflr r0
stw r5, 8(r1)
std r0, 16(r1)
std r2, 40(r1)
std r2, STK_GOT(r1)
stdu r1, -TM_FRAME_SIZE(r1)
/* We've a struct pt_regs at [r1+STACK_FRAME_OVERHEAD].
@ -447,7 +447,7 @@ restore_gprs:
ld r0, 16(r1)
mtcr r4
mtlr r0
ld r2, 40(r1)
ld r2, STK_GOT(r1)
/* Load system default DSCR */
ld r4, DSCR_DEFAULT@toc(r2)