microblaze: Fix irq.S code

It is ancient code. There is possible to save several instructions
just if we use offset instead of addik

Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 62 insertions, 120 deletions

diff --git a/arch/microblaze/cpu/irq.S b/arch/microblaze/cpu/irq.S
index e1fc19046..47bba36f2 100644
--- a/arch/microblaze/cpu/irq.S
+++ b/arch/microblaze/cpu/irq.S
@@ -27,129 +27,71 @@
 	.text
 	.global _interrupt_handler
 _interrupt_handler:
-	addi	r1, r1, -4
-	swi	r2, r1, 0
-	addi	r1, r1, -4
-	swi	r3, r1, 0
-	addi	r1, r1, -4
-	swi	r4, r1, 0
-	addi	r1, r1, -4
-	swi	r5, r1, 0
-	addi	r1, r1, -4
-	swi	r6, r1, 0
-	addi	r1, r1, -4
-	swi	r7, r1, 0
-	addi	r1, r1, -4
-	swi	r8, r1, 0
-	addi	r1, r1, -4
-	swi	r9, r1, 0
-	addi	r1, r1, -4
-	swi	r10, r1, 0
-	addi	r1, r1, -4
-	swi	r11, r1, 0
-	addi	r1, r1, -4
-	swi	r12, r1, 0
-	addi	r1, r1, -4
-	swi	r13, r1, 0
-	addi	r1, r1, -4
-	swi	r14, r1, 0
-	addi	r1, r1, -4
-	swi	r15, r1, 0
-	addi	r1, r1, -4
-	swi	r16, r1, 0
-	addi	r1, r1, -4
-	swi	r17, r1, 0
-	addi	r1, r1, -4
-	swi	r18, r1, 0
-	addi	r1, r1, -4
-	swi	r19, r1, 0
-	addi	r1, r1, -4
-	swi	r20, r1, 0
-	addi	r1, r1, -4
-	swi	r21, r1, 0
-	addi	r1, r1, -4
-	swi	r22, r1, 0
-	addi	r1, r1, -4
-	swi	r23, r1, 0
-	addi	r1, r1, -4
-	swi	r24, r1, 0
-	addi	r1, r1, -4
-	swi	r25, r1, 0
-	addi	r1, r1, -4
-	swi	r26, r1, 0
-	addi	r1, r1, -4
-	swi	r27, r1, 0
-	addi	r1, r1, -4
-	swi	r28, r1, 0
-	addi	r1, r1, -4
-	swi	r29, r1, 0
-	addi	r1, r1, -4
-	swi	r30, r1, 0
-	addi	r1, r1, -4
-	swi	r31, r1, 0
+	swi	r2, r1, -4
+	swi	r3, r1, -8
+	swi	r4, r1, -12
+	swi	r5, r1, -16
+	swi	r6, r1, -20
+	swi	r7, r1, -24
+	swi	r8, r1, -28
+	swi	r9, r1, -32
+	swi	r10, r1, -36
+	swi	r11, r1, -40
+	swi	r12, r1, -44
+	swi	r13, r1, -48
+	swi	r14, r1, -52
+	swi	r15, r1, -56
+	swi	r16, r1, -60
+	swi	r17, r1, -64
+	swi	r18, r1, -68
+	swi	r19, r1, -72
+	swi	r20, r1, -76
+	swi	r21, r1, -80
+	swi	r22, r1, -84
+	swi	r23, r1, -88
+	swi	r24, r1, -92
+	swi	r25, r1, -96
+	swi	r26, r1, -100
+	swi	r27, r1, -104
+	swi	r28, r1, -108
+	swi	r29, r1, -112
+	swi	r30, r1, -116
+	swi	r31, r1, -120
+	addik	r1, r1, -124
 	brlid	r15, interrupt_handler
 	nop
 	nop
-	lwi	r31, r1, 0
-	addi	r1, r1, 4
-	lwi	r30, r1, 0
-	addi	r1, r1, 4
-	lwi	r29, r1, 0
-	addi	r1, r1, 4
-	lwi	r28, r1, 0
-	addi	r1, r1, 4
-	lwi	r27, r1, 0
-	addi	r1, r1, 4
-	lwi	r26, r1, 0
-	addi	r1, r1, 4
-	lwi	r25, r1, 0
-	addi	r1, r1, 4
-	lwi	r24, r1, 0
-	addi	r1, r1, 4
-	lwi	r23, r1, 0
-	addi	r1, r1, 4
-	lwi	r22, r1, 0
-	addi	r1, r1, 4
-	lwi	r21, r1, 0
-	addi	r1, r1, 4
-	lwi	r20, r1, 0
-	addi	r1, r1, 4
-	lwi	r19, r1, 0
-	addi	r1, r1, 4
-	lwi	r18, r1, 0
-	addi	r1, r1, 4
-	lwi	r17, r1, 0
-	addi	r1, r1, 4
-	lwi	r16, r1, 0
-	addi	r1, r1, 4
-	lwi	r15, r1, 0
-	addi	r1, r1, 4
-	lwi	r14, r1, 0
-	addi	r1, r1, 4
-	lwi	r13, r1, 0
-	addi	r1, r1, 4
-	lwi	r12, r1, 0
-	addi	r1, r1, 4
-	lwi	r11, r1, 0
-	addi	r1, r1, 4
-	lwi	r10, r1, 0
-	addi	r1, r1, 4
-	lwi	r9, r1, 0
-	addi	r1, r1, 4
-	lwi	r8, r1, 0
-	addi	r1, r1, 4
-	lwi	r7, r1, 0
-	addi	r1, r1, 4
-	lwi	r6, r1, 0
-	addi	r1, r1, 4
-	lwi	r5, r1, 0
-	addi	r1, r1, 4
-	lwi	r4, r1, 0
-	addi	r1, r1, 4
-	lwi	r3, r1, 0
-	addi	r1, r1, 4
-	lwi	r2, r1, 0
-	addi	r1, r1, 4
+	addik	r1, r1, 124
+	lwi	r31, r1, -120
+	lwi	r30, r1, -116
+	lwi	r29, r1, -112
+	lwi	r28, r1, -108
+	lwi	r27, r1, -104
+	lwi	r26, r1, -100
+	lwi	r25, r1, -96
+	lwi	r24, r1, -92
+	lwi	r23, r1, -88
+	lwi	r22, r1, -84
+	lwi	r21, r1, -80
+	lwi	r20, r1, -76
+	lwi	r19, r1, -72
+	lwi	r18, r1, -68
+	lwi	r17, r1, -64
+	lwi	r16, r1, -60
+	lwi	r15, r1, -56
+	lwi	r14, r1, -52
+	lwi	r13, r1, -48
+	lwi	r12, r1, -44
+	lwi	r11, r1, -40
+	lwi	r10, r1, -36
+	lwi	r9, r1, -32
+	lwi	r8, r1, -28
+	lwi	r7, r1, -24
+	lwi	r6, r1, -20
+	lwi	r5, r1, -16
+	lwi	r4, r1, -12
+	lwi	r3, r1, -8
+	lwi	r2, r1, -4
 
 	/* enable_interrupt */
 #ifdef XILINX_USE_MSR_INSTR