[POWERPC] implement BEGIN/END_FW_FTR_SECTION

and use it an all the obvious places in assembler code.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>

1 files changed, 12 insertions, 6 deletions

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 2cd872b5283b..748e74fcf541 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -27,10 +27,7 @@
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 #include <asm/cputable.h>
-
-#ifdef CONFIG_PPC_ISERIES
-#define DO_SOFT_DISABLE
-#endif
+#include <asm/firmware.h>
 
 /*
  * System calls.
@@ -91,6 +88,7 @@ system_call_common:
         ld      r11,exception_marker@toc(r2)
         std     r11,-16(r9)             /* "regshere" marker */
 #ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
         /* Hack for handling interrupts when soft-enabling on iSeries */
         cmpdi   cr1,r0,0x5555           /* syscall 0x5555 */
         andi.   r10,r12,MSR_PR          /* from kernel */
@@ -98,6 +96,7 @@ system_call_common:
         beq     hardware_interrupt_entry
         lbz     r10,PACAPROCENABLED(r13)
         std     r10,SOFTE(r1)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
 #endif
         mfmsr   r11
         ori     r11,r11,MSR_EE
@@ -462,6 +461,7 @@ _GLOBAL(ret_from_except_lite)
 
 restore:
 #ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
         ld      r5,SOFTE(r1)
         cmpdi   0,r5,0
         beq     4f
@@ -480,6 +480,7 @@ restore:
         b       .ret_from_except_lite           /* loop back and handle more */
 
 4:      stb     r5,PACAPROCENABLED(r13)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
 #endif
 
         ld      r3,_MSR(r1)
@@ -538,18 +539,23 @@ do_work:
         lwz     r8,TI_PREEMPT(r9)
         cmpwi   cr1,r8,0
 #ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
         ld      r0,SOFTE(r1)
         cmpdi   r0,0
-#else
-        andi.   r0,r3,MSR_EE
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
 #endif
+BEGIN_FW_FTR_SECTION
+        andi.   r0,r3,MSR_EE
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_ISERIES)
         crandc  eq,cr1*4+eq,eq
         bne     restore
         /* here we are preempting the current task */
 1:
 #ifdef CONFIG_PPC_ISERIES
+BEGIN_FW_FTR_SECTION
         li      r0,1
         stb     r0,PACAPROCENABLED(r13)
+END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
 #endif
         ori     r10,r10,MSR_EE
         mtmsrd  r10,1           /* reenable interrupts */