1 files changed, 16 insertions, 28 deletions

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 72644cf22cac..4e9640cc0563 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -24,18 +24,6 @@
  * 0x8000 -        : Early init and support code
  */
 
-
-/*
- *   SPRG Usage
- *
- *   Register   Definition
- *
- *   SPRG0      reserved for hypervisor
- *   SPRG1      temp - used to save gpr
- *   SPRG2      temp - used to save gpr
- *   SPRG3      virt addr of paca
- */
-
 /*
  * This is the start of the interrupt handlers for pSeries
  * This code runs with relocation off.
@@ -53,16 +41,16 @@ __start_interrupts:
         . = 0x200
 _machine_check_pSeries:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        mtspr   SPRN_SPRG_SCRATCH0,r13          /* save r13 */
         EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
 
         . = 0x300
         .globl data_access_pSeries
 data_access_pSeries:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
+        mtspr   SPRN_SPRG_SCRATCH0,r13
 BEGIN_FTR_SECTION
-        mtspr   SPRN_SPRG2,r12
+        mtspr   SPRN_SPRG_SCRATCH1,r12
         mfspr   r13,SPRN_DAR
         mfspr   r12,SPRN_DSISR
         srdi    r13,r13,60
@@ -71,7 +59,7 @@ BEGIN_FTR_SECTION
         cmpwi   r13,0x2c
         beq     do_stab_bolted_pSeries
         mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
+        mfspr   r12,SPRN_SPRG_SCRATCH1
 END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
         EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, data_access_common)
 
@@ -79,8 +67,8 @@ END_FTR_SECTION_IFCLR(CPU_FTR_SLB)
         .globl data_access_slb_pSeries
 data_access_slb_pSeries:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
+        mtspr   SPRN_SPRG_SCRATCH0,r13
+        mfspr   r13,SPRN_SPRG_PACA              /* get paca address into r13 */
         std     r3,PACA_EXSLB+EX_R3(r13)
         mfspr   r3,SPRN_DAR
         std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
@@ -93,7 +81,7 @@ data_access_slb_pSeries:
         std     r10,PACA_EXSLB+EX_R10(r13)
         std     r11,PACA_EXSLB+EX_R11(r13)
         std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
+        mfspr   r10,SPRN_SPRG_SCRATCH0
         std     r10,PACA_EXSLB+EX_R13(r13)
         mfspr   r12,SPRN_SRR1           /* and SRR1 */
 #ifndef CONFIG_RELOCATABLE
@@ -117,8 +105,8 @@ data_access_slb_pSeries:
         .globl instruction_access_slb_pSeries
 instruction_access_slb_pSeries:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13
-        mfspr   r13,SPRN_SPRG3          /* get paca address into r13 */
+        mtspr   SPRN_SPRG_SCRATCH0,r13
+        mfspr   r13,SPRN_SPRG_PACA              /* get paca address into r13 */
         std     r3,PACA_EXSLB+EX_R3(r13)
         mfspr   r3,SPRN_SRR0            /* SRR0 is faulting address */
         std     r9,PACA_EXSLB+EX_R9(r13)        /* save r9 - r12 */
@@ -131,7 +119,7 @@ instruction_access_slb_pSeries:
         std     r10,PACA_EXSLB+EX_R10(r13)
         std     r11,PACA_EXSLB+EX_R11(r13)
         std     r12,PACA_EXSLB+EX_R12(r13)
-        mfspr   r10,SPRN_SPRG1
+        mfspr   r10,SPRN_SPRG_SCRATCH0
         std     r10,PACA_EXSLB+EX_R13(r13)
         mfspr   r12,SPRN_SRR1           /* and SRR1 */
 #ifndef CONFIG_RELOCATABLE
@@ -161,7 +149,7 @@ BEGIN_FTR_SECTION
         beq-    1f
 END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE)
         mr      r9,r13
-        mfspr   r13,SPRN_SPRG3
+        mfspr   r13,SPRN_SPRG_PACA
         mfspr   r11,SPRN_SRR0
         ld      r12,PACAKBASE(r13)
         ld      r10,PACAKMSR(r13)
@@ -230,14 +218,14 @@ masked_interrupt:
         rotldi  r10,r10,16
         mtspr   SPRN_SRR1,r10
         ld      r10,PACA_EXGEN+EX_R10(r13)
-        mfspr   r13,SPRN_SPRG1
+        mfspr   r13,SPRN_SPRG_SCRATCH0
         rfid
         b       .
 
         .align  7
 do_stab_bolted_pSeries:
         mtcrf   0x80,r12
-        mfspr   r12,SPRN_SPRG2
+        mfspr   r12,SPRN_SPRG_SCRATCH1
         EXCEPTION_PROLOG_PSERIES(PACA_EXSLB, .do_stab_bolted)
 
 #ifdef CONFIG_PPC_PSERIES
@@ -248,14 +236,14 @@ do_stab_bolted_pSeries:
       .align 7
 system_reset_fwnmi:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        mtspr   SPRN_SPRG_SCRATCH0,r13          /* save r13 */
         EXCEPTION_PROLOG_PSERIES(PACA_EXGEN, system_reset_common)
 
         .globl machine_check_fwnmi
       .align 7
 machine_check_fwnmi:
         HMT_MEDIUM
-        mtspr   SPRN_SPRG1,r13          /* save r13 */
+        mtspr   SPRN_SPRG_SCRATCH0,r13          /* save r13 */
         EXCEPTION_PROLOG_PSERIES(PACA_EXMC, machine_check_common)
 
 #endif /* CONFIG_PPC_PSERIES */
@@ -270,7 +258,7 @@ slb_miss_user_pseries:
         std     r10,PACA_EXGEN+EX_R10(r13)
         std     r11,PACA_EXGEN+EX_R11(r13)
         std     r12,PACA_EXGEN+EX_R12(r13)
-        mfspr   r10,SPRG1
+        mfspr   r10,SPRG_SCRATCH0
         ld      r11,PACA_EXSLB+EX_R9(r13)
         ld      r12,PACA_EXSLB+EX_R3(r13)
         std     r10,PACA_EXGEN+EX_R13(r13)