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ARC: pt_regs: remove hardcoded registers offset

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Replace hardcoded registers offset numbers by calculated via
offsetof.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Eugeniy Paltsev 2019-12-27 21:03:43 +03:00 committed by Vineet Gupta
parent 833a20b8d4
commit 7ecc6c1d5c
2 changed files with 13 additions and 4 deletions
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8
arch/arc/include/asm/entry-arcv2.h
View File

@ -162,7 +162,7 @@
#endif
#ifdef CONFIG_ARC_HAS_ACCL_REGS
ST2 r58, r59, PT_sp + 12
ST2 r58, r59, PT_r58
#endif
.endm
@ -172,8 +172,8 @@
LD2 gp, fp, PT_r26 ; gp (r26), fp (r27)
ld r12, [sp, PT_sp + 4]
ld r30, [sp, PT_sp + 8]
ld r12, [sp, PT_r12]
ld r30, [sp, PT_r30]
; Restore SP (into AUX_USER_SP) only if returning to U mode
; - for K mode, it will be implicitly restored as stack is unwound
@ -190,7 +190,7 @@
#endif
#ifdef CONFIG_ARC_HAS_ACCL_REGS
LD2 r58, r59, PT_sp + 12
LD2 r58, r59, PT_r58
#endif
.endm

9
arch/arc/kernel/asm-offsets.c
View File

@ -67,5 +67,14 @@ int main(void)
DEFINE(SZ_CALLEE_REGS, sizeof(struct callee_regs));
DEFINE(SZ_PT_REGS, sizeof(struct pt_regs));
#ifdef CONFIG_ISA_ARCV2
OFFSET(PT_r12, pt_regs, r12);
OFFSET(PT_r30, pt_regs, r30);
#endif
#ifdef CONFIG_ARC_HAS_ACCL_REGS
OFFSET(PT_r58, pt_regs, r58);
OFFSET(PT_r59, pt_regs, r59);
#endif
return 0;
}