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-rw-r--r--arch/powerpc/include/asm/reg.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 7844c285f6e1..eee2a60994bf 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -797,7 +797,7 @@
* HV mode in which case it is HSPRG0
*
* 64-bit server:
- * - SPRG0 unused (reserved for HV on Power4)
+ * - SPRG0 scratch for TM recheckpoint/reclaim (reserved for HV on Power4)
* - SPRG2 scratch for exception vectors
* - SPRG3 CPU and NUMA node for VDSO getcpu (user visible)
* - HSPRG0 stores PACA in HV mode