ARC: entry.S: canonical'ize EXCEPTION_{PROLOGUE,EPILOGUE}

-EXCEPTION_EPILOGUE introduced
-EXCEPTION_PROLOGUE now also includes reg file saving

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

diff --git a/arch/arc/include/asm/entry.h b/arch/arc/include/asm/entry.h
index 934bb83..f3927a1 100644 (file)
--- a/arch/arc/include/asm/entry.h
+++ b/arch/arc/include/asm/entry.h
@@ -401,21 +401,6 @@
        /* ARC700 doesn't provide auto-stack switching */
        SWITCH_TO_KERNEL_STK
 
-       /* save the regfile */
-       SAVE_ALL_SYS
-.endm
-
-/*--------------------------------------------------------------
- * Save all registers used by Exceptions (TLB Miss, Prot-V, Mem err etc)
- * Requires SP to be already switched to kernel mode Stack
- * sp points to the next free element on the stack at exit of this macro.
- * Registers are pushed / popped in the order defined in struct ptregs
- * in asm/ptrace.h
- * Note that syscalls are implemented via TRAP which is also a exception
- * from CPU's point of view
- *-------------------------------------------------------------*/
-.macro SAVE_ALL_SYS
-
        lr      r9, [ecr]
        st      r9, [sp, 8]    /* ECR */
        st      r0, [sp, 4]    /* orig_r0, needed only for sys calls */
@@ -446,7 +431,7 @@
  * for memory load operations. If used in that way interrupts are deffered
  * by hardware and that is not good.
  *-------------------------------------------------------------*/
-.macro RESTORE_ALL_SYS
+.macro EXCEPTION_EPILOGUE
        POPAX   erbta
        POPAX   lp_start
        POPAX   lp_end

diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index 03a3495..d8ec722 100644 (file)
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -638,7 +638,7 @@ restore_regs :
 
        ; if Returning from Exception
        bbit0  r10, STATUS_AE_BIT, not_exception
-       RESTORE_ALL_SYS
+       EXCEPTION_EPILOGUE
        rtie
 
        ; Not Exception so maybe Interrupts (Level 1 or 2)
@@ -704,7 +704,7 @@ not_level1_interrupt:
 
        ;this case is for syscalls or Exceptions (with fake rtie)
 
-       RESTORE_ALL_SYS
+       EXCEPTION_EPILOGUE
 debug_marker_syscall:
        rtie