ARC: pt_regs: remove hardcoded registers offset

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>

diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index 41b16f2..0b8b63d 100644 (file)
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -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
 

diff --git a/arch/arc/kernel/asm-offsets.c b/arch/arc/kernel/asm-offsets.c
index 631ebb5..c783bcd 100644 (file)
--- a/arch/arc/kernel/asm-offsets.c
+++ b/arch/arc/kernel/asm-offsets.c
@@ -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;
 }