xtensa: reorganize SR referencing

- reference SRs by names where possible, not by numbers;
- get rid of __stringify around SR names where possible;
- remove unneeded SR names from asm/regs.h;
- add SREG_ prefix to remaining SR names;

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Chris Zankel <chris@zankel.net>

1 files changed, 18 insertions, 18 deletions

diff --git a/arch/xtensa/kernel/head.S b/arch/xtensa/kernel/head.S
index 3ef91a73652d..bdc50788f35e 100644
--- a/arch/xtensa/kernel/head.S
+++ b/arch/xtensa/kernel/head.S
@@ -61,18 +61,18 @@ _startup:
         /* Disable interrupts and exceptions. */
 
         movi    a0, LOCKLEVEL
-        wsr     a0, PS
+        wsr     a0, ps
 
         /* Preserve the pointer to the boot parameter list in EXCSAVE_1 */
 
-        wsr     a2, EXCSAVE_1
+        wsr     a2, excsave1
 
         /* Start with a fresh windowbase and windowstart.  */
 
         movi    a1, 1
         movi    a0, 0
-        wsr     a1, WINDOWSTART
-        wsr     a0, WINDOWBASE
+        wsr     a1, windowstart
+        wsr     a0, windowbase
         rsync
 
         /* Set a0 to 0 for the remaining initialization. */
@@ -82,46 +82,46 @@ _startup:
         /* Clear debugging registers. */
 
 #if XCHAL_HAVE_DEBUG
-        wsr     a0, IBREAKENABLE
-        wsr     a0, ICOUNT
+        wsr     a0, ibreakenable
+        wsr     a0, icount
         movi    a1, 15
-        wsr     a0, ICOUNTLEVEL
+        wsr     a0, icountlevel
 
         .set    _index, 0
         .rept   XCHAL_NUM_DBREAK - 1
-        wsr     a0, DBREAKC + _index
+        wsr     a0, SREG_DBREAKC + _index
         .set    _index, _index + 1
         .endr
 #endif
 
         /* Clear CCOUNT (not really necessary, but nice) */
 
-        wsr     a0, CCOUNT      # not really necessary, but nice
+        wsr     a0, ccount      # not really necessary, but nice
 
         /* Disable zero-loops. */
 
 #if XCHAL_HAVE_LOOPS
-        wsr     a0, LCOUNT
+        wsr     a0, lcount
 #endif
 
         /* Disable all timers. */
 
         .set    _index, 0
         .rept   XCHAL_NUM_TIMERS - 1
-        wsr     a0, CCOMPARE + _index
+        wsr     a0, SREG_CCOMPARE + _index
         .set    _index, _index + 1
         .endr
 
         /* Interrupt initialization. */
 
         movi    a2, XCHAL_INTTYPE_MASK_SOFTWARE | XCHAL_INTTYPE_MASK_EXTERN_EDGE
-        wsr     a0, INTENABLE
-        wsr     a2, INTCLEAR
+        wsr     a0, intenable
+        wsr     a2, intclear
 
         /* Disable coprocessors. */
 
 #if XCHAL_CP_NUM > 0
-        wsr     a0, CPENABLE
+        wsr     a0, cpenable
 #endif
 
         /* Set PS.INTLEVEL=1, PS.WOE=0, kernel stack, PS.EXCM=0
@@ -132,7 +132,7 @@ _startup:
          */
 
         movi    a1, 1
-        wsr     a1, PS
+        wsr     a1, ps
         rsync
 
         /*  Initialize the caches.
@@ -206,18 +206,18 @@ _startup:
         addi    a1, a1, KERNEL_STACK_SIZE
 
         movi    a2, 0x00040001          # WOE=1, INTLEVEL=1, UM=0
-        wsr     a2, PS                  # (enable reg-windows; progmode stack)
+        wsr     a2, ps                  # (enable reg-windows; progmode stack)
         rsync
 
         /* Set up EXCSAVE[DEBUGLEVEL] to point to the Debug Exception Handler.*/
 
         movi    a2, debug_exception
-        wsr     a2, EXCSAVE + XCHAL_DEBUGLEVEL
+        wsr     a2, SREG_EXCSAVE + XCHAL_DEBUGLEVEL
 
         /* Set up EXCSAVE[1] to point to the exc_table. */
 
         movi    a6, exc_table
-        xsr     a6, EXCSAVE_1
+        xsr     a6, excsave1
 
         /* init_arch kick-starts the linux kernel */