[PATCH v2 1/4] powerpc/cputable: reserve bits in HWCAP2 for new features

[Nishanth Aravamudan]

Also, make HTM's presence dependent on the .config option.
    
Signed-off-by: Nishanth Aravamudan <nacc at us.ibm.com>

---
Changes since v1:
 - Add TAR.
 - Make HTM config dependent.

diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index fcc54ad..26807e5 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -224,8 +224,10 @@ extern const char *powerpc_base_platform;
 /* We only set the TM feature if the kernel was compiled with TM supprt */
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 #define CPU_FTR_TM_COMP		CPU_FTR_TM
+#define PPC_FEATURE2_HTM_COMP	PPC_FEATURE2_HTM
 #else
 #define CPU_FTR_TM_COMP		0
+#define PPC_FEATURE2_HTM_COMP	0
 #endif
 
 /* We need to mark all pages as being coherent if we're SMP or we have a
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index ed9dd81..5b76579 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -1,6 +1,7 @@
 #ifndef _UAPI__ASM_POWERPC_CPUTABLE_H
 #define _UAPI__ASM_POWERPC_CPUTABLE_H
 
+/* in AT_HWCAP */
 #define PPC_FEATURE_32			0x80000000
 #define PPC_FEATURE_64			0x40000000
 #define PPC_FEATURE_601_INSTR		0x20000000
@@ -33,4 +34,12 @@
 #define PPC_FEATURE_TRUE_LE		0x00000002
 #define PPC_FEATURE_PPC_LE		0x00000001
 
+/* in AT_HWCAP2 */
+#define PPC_FEATURE2_ARCH_2_07		0x80000000
+#define PPC_FEATURE2_HTM		0x40000000
+#define PPC_FEATURE2_DSCR		0x20000000
+#define PPC_FEATURE2_EBB		0x10000000
+#define PPC_FEATURE2_ISEL		0x08000000
+#define PPC_FEATURE2_TAR		0x04000000
+
 #endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */