[PATCH 01/16] powerpc: Add new CPU feature bit for transactional memory
Michael Neuling
mikey at neuling.org
Tue Nov 27 13:47:53 EST 2012
Signed-off-by: Matt Evans <matt at ozlabs.org>
Signed-off-by: Michael Neuling <mikey at neuling.org>
---
arch/powerpc/include/asm/cputable.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index fc4d2c5..f2163da 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -171,6 +171,7 @@ extern const char *powerpc_base_platform;
#define CPU_FTR_POPCNTD LONG_ASM_CONST(0x0800000000000000)
#define CPU_FTR_ICSWX LONG_ASM_CONST(0x1000000000000000)
#define CPU_FTR_VMX_COPY LONG_ASM_CONST(0x2000000000000000)
+#define CPU_FTR_TM LONG_ASM_CONST(0x4000000000000000)
#ifndef __ASSEMBLY__
@@ -216,6 +217,13 @@ extern const char *powerpc_base_platform;
#define PPC_FEATURE_HAS_EFP_DOUBLE_COMP 0
#endif
+/* We only set the TM feature if the kernel was compiled with TM supprt */
+#ifdef CONFIG_TRANSACTIONAL_MEM
+#define CPU_FTR_TM_COMP CPU_FTR_TM
+#else
+#define CPU_FTR_TM_COMP 0
+#endif
+
/* We need to mark all pages as being coherent if we're SMP or we have a
* 74[45]x and an MPC107 host bridge. Also 83xx and PowerQUICC II
* require it for PCI "streaming/prefetch" to work properly.
--
1.7.9.5
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