diff mbox series

[v3,4/4] riscv: entry: consolidate general regs saving/restoring

Message ID 20221003102921.3973-5-jszhang@kernel.org (mailing list archive)
State New, archived
Headers show
Series riscv: entry: further clean up and VMAP_STACK fix | expand

Commit Message

Jisheng Zhang Oct. 3, 2022, 10:29 a.m. UTC 
Consolidate the saving/restoring GPs(except zero, ra, sp, gp and tp) into
save_from_x5_to_x31/restore_from_x5_to_x31 macros.

No functional change intended.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/include/asm/asm.h   | 63 +++++++++++++++++++++++++
 arch/riscv/kernel/entry.S      | 84 ++--------------------------------
 arch/riscv/kernel/mcount-dyn.S | 56 +----------------------
 3 files changed, 68 insertions(+), 135 deletions(-)

Comments

Guo Ren Oct. 4, 2022, 4:03 p.m. UTC | #1 
Reviewed-by: Guo Ren <guoren@kernel.org>

On Mon, Oct 3, 2022 at 6:39 PM Jisheng Zhang <jszhang@kernel.org> wrote:
>
> Consolidate the saving/restoring GPs(except zero, ra, sp, gp and tp) into
> save_from_x5_to_x31/restore_from_x5_to_x31 macros.
>
> No functional change intended.
>
> Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
> ---
>  arch/riscv/include/asm/asm.h   | 63 +++++++++++++++++++++++++
>  arch/riscv/kernel/entry.S      | 84 ++--------------------------------
>  arch/riscv/kernel/mcount-dyn.S | 56 +----------------------
>  3 files changed, 68 insertions(+), 135 deletions(-)
>
> diff --git a/arch/riscv/include/asm/asm.h b/arch/riscv/include/asm/asm.h
> index 1b471ff73178..bf5247aa317d 100644
> --- a/arch/riscv/include/asm/asm.h
> +++ b/arch/riscv/include/asm/asm.h
> @@ -68,6 +68,7 @@
>  #endif
>
>  #ifdef __ASSEMBLY__
> +#include <asm/asm-offsets.h>
>
>  /* Common assembly source macros */
>
> @@ -80,6 +81,68 @@
>         .endr
>  .endm
>
> +       /* save all GPs except zero, ra, sp, gp and tp */
> +       .macro save_from_x5_to_x31
> +       REG_S x5,  PT_T0(sp)
> +       REG_S x6,  PT_T1(sp)
> +       REG_S x7,  PT_T2(sp)
> +       REG_S x8,  PT_S0(sp)
> +       REG_S x9,  PT_S1(sp)
> +       REG_S x10, PT_A0(sp)
> +       REG_S x11, PT_A1(sp)
> +       REG_S x12, PT_A2(sp)
> +       REG_S x13, PT_A3(sp)
> +       REG_S x14, PT_A4(sp)
> +       REG_S x15, PT_A5(sp)
> +       REG_S x16, PT_A6(sp)
> +       REG_S x17, PT_A7(sp)
> +       REG_S x18, PT_S2(sp)
> +       REG_S x19, PT_S3(sp)
> +       REG_S x20, PT_S4(sp)
> +       REG_S x21, PT_S5(sp)
> +       REG_S x22, PT_S6(sp)
> +       REG_S x23, PT_S7(sp)
> +       REG_S x24, PT_S8(sp)
> +       REG_S x25, PT_S9(sp)
> +       REG_S x26, PT_S10(sp)
> +       REG_S x27, PT_S11(sp)
> +       REG_S x28, PT_T3(sp)
> +       REG_S x29, PT_T4(sp)
> +       REG_S x30, PT_T5(sp)
> +       REG_S x31, PT_T6(sp)
> +       .endm
> +
> +       /* restore all GPs except zero, ra, sp, gp and tp */
> +       .macro restore_from_x5_to_x31
> +       REG_L x5,  PT_T0(sp)
> +       REG_L x6,  PT_T1(sp)
> +       REG_L x7,  PT_T2(sp)
> +       REG_L x8,  PT_S0(sp)
> +       REG_L x9,  PT_S1(sp)
> +       REG_L x10, PT_A0(sp)
> +       REG_L x11, PT_A1(sp)
> +       REG_L x12, PT_A2(sp)
> +       REG_L x13, PT_A3(sp)
> +       REG_L x14, PT_A4(sp)
> +       REG_L x15, PT_A5(sp)
> +       REG_L x16, PT_A6(sp)
> +       REG_L x17, PT_A7(sp)
> +       REG_L x18, PT_S2(sp)
> +       REG_L x19, PT_S3(sp)
> +       REG_L x20, PT_S4(sp)
> +       REG_L x21, PT_S5(sp)
> +       REG_L x22, PT_S6(sp)
> +       REG_L x23, PT_S7(sp)
> +       REG_L x24, PT_S8(sp)
> +       REG_L x25, PT_S9(sp)
> +       REG_L x26, PT_S10(sp)
> +       REG_L x27, PT_S11(sp)
> +       REG_L x28, PT_T3(sp)
> +       REG_L x29, PT_T4(sp)
> +       REG_L x30, PT_T5(sp)
> +       REG_L x31, PT_T6(sp)
> +       .endm
> +
>  #endif /* __ASSEMBLY__ */
>
>  #endif /* _ASM_RISCV_ASM_H */
> diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
> index 48ed1df7a792..7ba3826dde84 100644
> --- a/arch/riscv/kernel/entry.S
> +++ b/arch/riscv/kernel/entry.S
> @@ -41,33 +41,7 @@ _save_context:
>         addi sp, sp, -(PT_SIZE_ON_STACK)
>         REG_S x1,  PT_RA(sp)
>         REG_S x3,  PT_GP(sp)
> -       REG_S x5,  PT_T0(sp)
> -       REG_S x6,  PT_T1(sp)
> -       REG_S x7,  PT_T2(sp)
> -       REG_S x8,  PT_S0(sp)
> -       REG_S x9,  PT_S1(sp)
> -       REG_S x10, PT_A0(sp)
> -       REG_S x11, PT_A1(sp)
> -       REG_S x12, PT_A2(sp)
> -       REG_S x13, PT_A3(sp)
> -       REG_S x14, PT_A4(sp)
> -       REG_S x15, PT_A5(sp)
> -       REG_S x16, PT_A6(sp)
> -       REG_S x17, PT_A7(sp)
> -       REG_S x18, PT_S2(sp)
> -       REG_S x19, PT_S3(sp)
> -       REG_S x20, PT_S4(sp)
> -       REG_S x21, PT_S5(sp)
> -       REG_S x22, PT_S6(sp)
> -       REG_S x23, PT_S7(sp)
> -       REG_S x24, PT_S8(sp)
> -       REG_S x25, PT_S9(sp)
> -       REG_S x26, PT_S10(sp)
> -       REG_S x27, PT_S11(sp)
> -       REG_S x28, PT_T3(sp)
> -       REG_S x29, PT_T4(sp)
> -       REG_S x30, PT_T5(sp)
> -       REG_S x31, PT_T6(sp)
> +       save_from_x5_to_x31
>
>         /*
>          * Disable user-mode memory access as it should only be set in the
> @@ -184,33 +158,7 @@ ENTRY(ret_from_exception)
>         REG_L x1,  PT_RA(sp)
>         REG_L x3,  PT_GP(sp)
>         REG_L x4,  PT_TP(sp)
> -       REG_L x5,  PT_T0(sp)
> -       REG_L x6,  PT_T1(sp)
> -       REG_L x7,  PT_T2(sp)
> -       REG_L x8,  PT_S0(sp)
> -       REG_L x9,  PT_S1(sp)
> -       REG_L x10, PT_A0(sp)
> -       REG_L x11, PT_A1(sp)
> -       REG_L x12, PT_A2(sp)
> -       REG_L x13, PT_A3(sp)
> -       REG_L x14, PT_A4(sp)
> -       REG_L x15, PT_A5(sp)
> -       REG_L x16, PT_A6(sp)
> -       REG_L x17, PT_A7(sp)
> -       REG_L x18, PT_S2(sp)
> -       REG_L x19, PT_S3(sp)
> -       REG_L x20, PT_S4(sp)
> -       REG_L x21, PT_S5(sp)
> -       REG_L x22, PT_S6(sp)
> -       REG_L x23, PT_S7(sp)
> -       REG_L x24, PT_S8(sp)
> -       REG_L x25, PT_S9(sp)
> -       REG_L x26, PT_S10(sp)
> -       REG_L x27, PT_S11(sp)
> -       REG_L x28, PT_T3(sp)
> -       REG_L x29, PT_T4(sp)
> -       REG_L x30, PT_T5(sp)
> -       REG_L x31, PT_T6(sp)
> +       restore_from_x5_to_x31
>
>         REG_L x2,  PT_SP(sp)
>
> @@ -238,33 +186,7 @@ ENTRY(handle_kernel_stack_overflow)
>         //save context to overflow stack
>         REG_S x1,  PT_RA(sp)
>         REG_S x3,  PT_GP(sp)
> -       REG_S x5,  PT_T0(sp)
> -       REG_S x6,  PT_T1(sp)
> -       REG_S x7,  PT_T2(sp)
> -       REG_S x8,  PT_S0(sp)
> -       REG_S x9,  PT_S1(sp)
> -       REG_S x10, PT_A0(sp)
> -       REG_S x11, PT_A1(sp)
> -       REG_S x12, PT_A2(sp)
> -       REG_S x13, PT_A3(sp)
> -       REG_S x14, PT_A4(sp)
> -       REG_S x15, PT_A5(sp)
> -       REG_S x16, PT_A6(sp)
> -       REG_S x17, PT_A7(sp)
> -       REG_S x18, PT_S2(sp)
> -       REG_S x19, PT_S3(sp)
> -       REG_S x20, PT_S4(sp)
> -       REG_S x21, PT_S5(sp)
> -       REG_S x22, PT_S6(sp)
> -       REG_S x23, PT_S7(sp)
> -       REG_S x24, PT_S8(sp)
> -       REG_S x25, PT_S9(sp)
> -       REG_S x26, PT_S10(sp)
> -       REG_S x27, PT_S11(sp)
> -       REG_S x28, PT_T3(sp)
> -       REG_S x29, PT_T4(sp)
> -       REG_S x30, PT_T5(sp)
> -       REG_S x31, PT_T6(sp)
> +       save_from_x5_to_x31
>
>         REG_L s0, TASK_TI_KERNEL_SP(tp)
>         csrr s1, CSR_STATUS
> diff --git a/arch/riscv/kernel/mcount-dyn.S b/arch/riscv/kernel/mcount-dyn.S
> index d171eca623b6..040d098279a9 100644
> --- a/arch/riscv/kernel/mcount-dyn.S
> +++ b/arch/riscv/kernel/mcount-dyn.S
> @@ -70,33 +70,7 @@
>         REG_S x2,  PT_SP(sp)
>         REG_S x3,  PT_GP(sp)
>         REG_S x4,  PT_TP(sp)
> -       REG_S x5,  PT_T0(sp)
> -       REG_S x6,  PT_T1(sp)
> -       REG_S x7,  PT_T2(sp)
> -       REG_S x8,  PT_S0(sp)
> -       REG_S x9,  PT_S1(sp)
> -       REG_S x10, PT_A0(sp)
> -       REG_S x11, PT_A1(sp)
> -       REG_S x12, PT_A2(sp)
> -       REG_S x13, PT_A3(sp)
> -       REG_S x14, PT_A4(sp)
> -       REG_S x15, PT_A5(sp)
> -       REG_S x16, PT_A6(sp)
> -       REG_S x17, PT_A7(sp)
> -       REG_S x18, PT_S2(sp)
> -       REG_S x19, PT_S3(sp)
> -       REG_S x20, PT_S4(sp)
> -       REG_S x21, PT_S5(sp)
> -       REG_S x22, PT_S6(sp)
> -       REG_S x23, PT_S7(sp)
> -       REG_S x24, PT_S8(sp)
> -       REG_S x25, PT_S9(sp)
> -       REG_S x26, PT_S10(sp)
> -       REG_S x27, PT_S11(sp)
> -       REG_S x28, PT_T3(sp)
> -       REG_S x29, PT_T4(sp)
> -       REG_S x30, PT_T5(sp)
> -       REG_S x31, PT_T6(sp)
> +       save_from_x5_to_x31
>         .endm
>
>         .macro RESTORE_ALL
> @@ -108,33 +82,7 @@
>         REG_L x2,  PT_SP(sp)
>         REG_L x3,  PT_GP(sp)
>         REG_L x4,  PT_TP(sp)
> -       REG_L x5,  PT_T0(sp)
> -       REG_L x6,  PT_T1(sp)
> -       REG_L x7,  PT_T2(sp)
> -       REG_L x8,  PT_S0(sp)
> -       REG_L x9,  PT_S1(sp)
> -       REG_L x10, PT_A0(sp)
> -       REG_L x11, PT_A1(sp)
> -       REG_L x12, PT_A2(sp)
> -       REG_L x13, PT_A3(sp)
> -       REG_L x14, PT_A4(sp)
> -       REG_L x15, PT_A5(sp)
> -       REG_L x16, PT_A6(sp)
> -       REG_L x17, PT_A7(sp)
> -       REG_L x18, PT_S2(sp)
> -       REG_L x19, PT_S3(sp)
> -       REG_L x20, PT_S4(sp)
> -       REG_L x21, PT_S5(sp)
> -       REG_L x22, PT_S6(sp)
> -       REG_L x23, PT_S7(sp)
> -       REG_L x24, PT_S8(sp)
> -       REG_L x25, PT_S9(sp)
> -       REG_L x26, PT_S10(sp)
> -       REG_L x27, PT_S11(sp)
> -       REG_L x28, PT_T3(sp)
> -       REG_L x29, PT_T4(sp)
> -       REG_L x30, PT_T5(sp)
> -       REG_L x31, PT_T6(sp)
> +       restore_from_x5_to_x31
>
>         addi    sp, sp, PT_SIZE_ON_STACK
>         addi    sp, sp, SZREG
> --
> 2.37.2
>
diff mbox series

Patch

diff --git a/arch/riscv/include/asm/asm.h b/arch/riscv/include/asm/asm.h
index 1b471ff73178..bf5247aa317d 100644
--- a/arch/riscv/include/asm/asm.h
+++ b/arch/riscv/include/asm/asm.h
@@ -68,6 +68,7 @@ 
 #endif
 
 #ifdef __ASSEMBLY__
+#include <asm/asm-offsets.h>
 
 /* Common assembly source macros */
 
@@ -80,6 +81,68 @@ 
 	.endr
 .endm
 
+	/* save all GPs except zero, ra, sp, gp and tp */
+	.macro save_from_x5_to_x31
+	REG_S x5,  PT_T0(sp)
+	REG_S x6,  PT_T1(sp)
+	REG_S x7,  PT_T2(sp)
+	REG_S x8,  PT_S0(sp)
+	REG_S x9,  PT_S1(sp)
+	REG_S x10, PT_A0(sp)
+	REG_S x11, PT_A1(sp)
+	REG_S x12, PT_A2(sp)
+	REG_S x13, PT_A3(sp)
+	REG_S x14, PT_A4(sp)
+	REG_S x15, PT_A5(sp)
+	REG_S x16, PT_A6(sp)
+	REG_S x17, PT_A7(sp)
+	REG_S x18, PT_S2(sp)
+	REG_S x19, PT_S3(sp)
+	REG_S x20, PT_S4(sp)
+	REG_S x21, PT_S5(sp)
+	REG_S x22, PT_S6(sp)
+	REG_S x23, PT_S7(sp)
+	REG_S x24, PT_S8(sp)
+	REG_S x25, PT_S9(sp)
+	REG_S x26, PT_S10(sp)
+	REG_S x27, PT_S11(sp)
+	REG_S x28, PT_T3(sp)
+	REG_S x29, PT_T4(sp)
+	REG_S x30, PT_T5(sp)
+	REG_S x31, PT_T6(sp)
+	.endm
+
+	/* restore all GPs except zero, ra, sp, gp and tp */
+	.macro restore_from_x5_to_x31
+	REG_L x5,  PT_T0(sp)
+	REG_L x6,  PT_T1(sp)
+	REG_L x7,  PT_T2(sp)
+	REG_L x8,  PT_S0(sp)
+	REG_L x9,  PT_S1(sp)
+	REG_L x10, PT_A0(sp)
+	REG_L x11, PT_A1(sp)
+	REG_L x12, PT_A2(sp)
+	REG_L x13, PT_A3(sp)
+	REG_L x14, PT_A4(sp)
+	REG_L x15, PT_A5(sp)
+	REG_L x16, PT_A6(sp)
+	REG_L x17, PT_A7(sp)
+	REG_L x18, PT_S2(sp)
+	REG_L x19, PT_S3(sp)
+	REG_L x20, PT_S4(sp)
+	REG_L x21, PT_S5(sp)
+	REG_L x22, PT_S6(sp)
+	REG_L x23, PT_S7(sp)
+	REG_L x24, PT_S8(sp)
+	REG_L x25, PT_S9(sp)
+	REG_L x26, PT_S10(sp)
+	REG_L x27, PT_S11(sp)
+	REG_L x28, PT_T3(sp)
+	REG_L x29, PT_T4(sp)
+	REG_L x30, PT_T5(sp)
+	REG_L x31, PT_T6(sp)
+	.endm
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_RISCV_ASM_H */
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 48ed1df7a792..7ba3826dde84 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -41,33 +41,7 @@  _save_context:
 	addi sp, sp, -(PT_SIZE_ON_STACK)
 	REG_S x1,  PT_RA(sp)
 	REG_S x3,  PT_GP(sp)
-	REG_S x5,  PT_T0(sp)
-	REG_S x6,  PT_T1(sp)
-	REG_S x7,  PT_T2(sp)
-	REG_S x8,  PT_S0(sp)
-	REG_S x9,  PT_S1(sp)
-	REG_S x10, PT_A0(sp)
-	REG_S x11, PT_A1(sp)
-	REG_S x12, PT_A2(sp)
-	REG_S x13, PT_A3(sp)
-	REG_S x14, PT_A4(sp)
-	REG_S x15, PT_A5(sp)
-	REG_S x16, PT_A6(sp)
-	REG_S x17, PT_A7(sp)
-	REG_S x18, PT_S2(sp)
-	REG_S x19, PT_S3(sp)
-	REG_S x20, PT_S4(sp)
-	REG_S x21, PT_S5(sp)
-	REG_S x22, PT_S6(sp)
-	REG_S x23, PT_S7(sp)
-	REG_S x24, PT_S8(sp)
-	REG_S x25, PT_S9(sp)
-	REG_S x26, PT_S10(sp)
-	REG_S x27, PT_S11(sp)
-	REG_S x28, PT_T3(sp)
-	REG_S x29, PT_T4(sp)
-	REG_S x30, PT_T5(sp)
-	REG_S x31, PT_T6(sp)
+	save_from_x5_to_x31
 
 	/*
 	 * Disable user-mode memory access as it should only be set in the
@@ -184,33 +158,7 @@  ENTRY(ret_from_exception)
 	REG_L x1,  PT_RA(sp)
 	REG_L x3,  PT_GP(sp)
 	REG_L x4,  PT_TP(sp)
-	REG_L x5,  PT_T0(sp)
-	REG_L x6,  PT_T1(sp)
-	REG_L x7,  PT_T2(sp)
-	REG_L x8,  PT_S0(sp)
-	REG_L x9,  PT_S1(sp)
-	REG_L x10, PT_A0(sp)
-	REG_L x11, PT_A1(sp)
-	REG_L x12, PT_A2(sp)
-	REG_L x13, PT_A3(sp)
-	REG_L x14, PT_A4(sp)
-	REG_L x15, PT_A5(sp)
-	REG_L x16, PT_A6(sp)
-	REG_L x17, PT_A7(sp)
-	REG_L x18, PT_S2(sp)
-	REG_L x19, PT_S3(sp)
-	REG_L x20, PT_S4(sp)
-	REG_L x21, PT_S5(sp)
-	REG_L x22, PT_S6(sp)
-	REG_L x23, PT_S7(sp)
-	REG_L x24, PT_S8(sp)
-	REG_L x25, PT_S9(sp)
-	REG_L x26, PT_S10(sp)
-	REG_L x27, PT_S11(sp)
-	REG_L x28, PT_T3(sp)
-	REG_L x29, PT_T4(sp)
-	REG_L x30, PT_T5(sp)
-	REG_L x31, PT_T6(sp)
+	restore_from_x5_to_x31
 
 	REG_L x2,  PT_SP(sp)
 
@@ -238,33 +186,7 @@  ENTRY(handle_kernel_stack_overflow)
 	//save context to overflow stack
 	REG_S x1,  PT_RA(sp)
 	REG_S x3,  PT_GP(sp)
-	REG_S x5,  PT_T0(sp)
-	REG_S x6,  PT_T1(sp)
-	REG_S x7,  PT_T2(sp)
-	REG_S x8,  PT_S0(sp)
-	REG_S x9,  PT_S1(sp)
-	REG_S x10, PT_A0(sp)
-	REG_S x11, PT_A1(sp)
-	REG_S x12, PT_A2(sp)
-	REG_S x13, PT_A3(sp)
-	REG_S x14, PT_A4(sp)
-	REG_S x15, PT_A5(sp)
-	REG_S x16, PT_A6(sp)
-	REG_S x17, PT_A7(sp)
-	REG_S x18, PT_S2(sp)
-	REG_S x19, PT_S3(sp)
-	REG_S x20, PT_S4(sp)
-	REG_S x21, PT_S5(sp)
-	REG_S x22, PT_S6(sp)
-	REG_S x23, PT_S7(sp)
-	REG_S x24, PT_S8(sp)
-	REG_S x25, PT_S9(sp)
-	REG_S x26, PT_S10(sp)
-	REG_S x27, PT_S11(sp)
-	REG_S x28, PT_T3(sp)
-	REG_S x29, PT_T4(sp)
-	REG_S x30, PT_T5(sp)
-	REG_S x31, PT_T6(sp)
+	save_from_x5_to_x31
 
 	REG_L s0, TASK_TI_KERNEL_SP(tp)
 	csrr s1, CSR_STATUS
diff --git a/arch/riscv/kernel/mcount-dyn.S b/arch/riscv/kernel/mcount-dyn.S
index d171eca623b6..040d098279a9 100644
--- a/arch/riscv/kernel/mcount-dyn.S
+++ b/arch/riscv/kernel/mcount-dyn.S
@@ -70,33 +70,7 @@ 
 	REG_S x2,  PT_SP(sp)
 	REG_S x3,  PT_GP(sp)
 	REG_S x4,  PT_TP(sp)
-	REG_S x5,  PT_T0(sp)
-	REG_S x6,  PT_T1(sp)
-	REG_S x7,  PT_T2(sp)
-	REG_S x8,  PT_S0(sp)
-	REG_S x9,  PT_S1(sp)
-	REG_S x10, PT_A0(sp)
-	REG_S x11, PT_A1(sp)
-	REG_S x12, PT_A2(sp)
-	REG_S x13, PT_A3(sp)
-	REG_S x14, PT_A4(sp)
-	REG_S x15, PT_A5(sp)
-	REG_S x16, PT_A6(sp)
-	REG_S x17, PT_A7(sp)
-	REG_S x18, PT_S2(sp)
-	REG_S x19, PT_S3(sp)
-	REG_S x20, PT_S4(sp)
-	REG_S x21, PT_S5(sp)
-	REG_S x22, PT_S6(sp)
-	REG_S x23, PT_S7(sp)
-	REG_S x24, PT_S8(sp)
-	REG_S x25, PT_S9(sp)
-	REG_S x26, PT_S10(sp)
-	REG_S x27, PT_S11(sp)
-	REG_S x28, PT_T3(sp)
-	REG_S x29, PT_T4(sp)
-	REG_S x30, PT_T5(sp)
-	REG_S x31, PT_T6(sp)
+	save_from_x5_to_x31
 	.endm
 
 	.macro RESTORE_ALL
@@ -108,33 +82,7 @@ 
 	REG_L x2,  PT_SP(sp)
 	REG_L x3,  PT_GP(sp)
 	REG_L x4,  PT_TP(sp)
-	REG_L x5,  PT_T0(sp)
-	REG_L x6,  PT_T1(sp)
-	REG_L x7,  PT_T2(sp)
-	REG_L x8,  PT_S0(sp)
-	REG_L x9,  PT_S1(sp)
-	REG_L x10, PT_A0(sp)
-	REG_L x11, PT_A1(sp)
-	REG_L x12, PT_A2(sp)
-	REG_L x13, PT_A3(sp)
-	REG_L x14, PT_A4(sp)
-	REG_L x15, PT_A5(sp)
-	REG_L x16, PT_A6(sp)
-	REG_L x17, PT_A7(sp)
-	REG_L x18, PT_S2(sp)
-	REG_L x19, PT_S3(sp)
-	REG_L x20, PT_S4(sp)
-	REG_L x21, PT_S5(sp)
-	REG_L x22, PT_S6(sp)
-	REG_L x23, PT_S7(sp)
-	REG_L x24, PT_S8(sp)
-	REG_L x25, PT_S9(sp)
-	REG_L x26, PT_S10(sp)
-	REG_L x27, PT_S11(sp)
-	REG_L x28, PT_T3(sp)
-	REG_L x29, PT_T4(sp)
-	REG_L x30, PT_T5(sp)
-	REG_L x31, PT_T6(sp)
+	restore_from_x5_to_x31
 
 	addi	sp, sp, PT_SIZE_ON_STACK
 	addi	sp, sp, SZREG