powerpc: Convert to %r for all GPR usage

Now all the fixes are in place, let's rock-n-roll!

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 40 insertions, 34 deletions

diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 19205f5cbaca..f6f67db212a7 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -490,40 +490,46 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #define cr7     7
 
 
-/* General Purpose Registers (GPRs) */
-
-#define r0      0
-#define r1      1
-#define r2      2
-#define r3      3
-#define r4      4
-#define r5      5
-#define r6      6
-#define r7      7
-#define r8      8
-#define r9      9
-#define r10     10
-#define r11     11
-#define r12     12
-#define r13     13
-#define r14     14
-#define r15     15
-#define r16     16
-#define r17     17
-#define r18     18
-#define r19     19
-#define r20     20
-#define r21     21
-#define r22     22
-#define r23     23
-#define r24     24
-#define r25     25
-#define r26     26
-#define r27     27
-#define r28     28
-#define r29     29
-#define r30     30
-#define r31     31
+/*
+ * General Purpose Registers (GPRs)
+ *
+ * The lower case r0-r31 should be used in preference to the upper
+ * case R0-R31 as they provide more error checking in the assembler.
+ * Use R0-31 only when really nessesary.
+ */
+
+#define r0      %r0
+#define r1      %r1
+#define r2      %r2
+#define r3      %r3
+#define r4      %r4
+#define r5      %r5
+#define r6      %r6
+#define r7      %r7
+#define r8      %r8
+#define r9      %r9
+#define r10     %r10
+#define r11     %r11
+#define r12     %r12
+#define r13     %r13
+#define r14     %r14
+#define r15     %r15
+#define r16     %r16
+#define r17     %r17
+#define r18     %r18
+#define r19     %r19
+#define r20     %r20
+#define r21     %r21
+#define r22     %r22
+#define r23     %r23
+#define r24     %r24
+#define r25     %r25
+#define r26     %r26
+#define r27     %r27
+#define r28     %r28
+#define r29     %r29
+#define r30     %r30
+#define r31     %r31
 
 
 /* Floating Point Registers (FPRs) */