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authorMichael Neuling <mikey@neuling.org>2013-05-26 18:09:37 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-06-01 08:29:22 +1000
commit35f7097fcedec63fcba1852dbee96f74a2d90878 (patch)
tree536d59a4eed1079cc42f6f1a6fbe4c24956ee1eb
parent58f8bbd2e39c3732c55698494338ee19a92c53a0 (diff)
downloadlinux-35f7097fcedec63fcba1852dbee96f74a2d90878.tar.gz
powerpc/tm: Make room for hypervisor in abort cause codes
PAPR carves out 0xff-0xe0 for hypervisor use of transactional memory software abort cause codes. Unfortunately we don't respect this currently. Below fixes this to move our cause codes to below this region. Signed-off-by: Michael Neuling <mikey@neuling.org> Cc: <stable@vger.kernel.org> # 3.9 only Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/include/asm/reg.h15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index a6136515c7f..8f6a94b2dc9 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -113,14 +113,15 @@
/* Reason codes describing kernel causes for transaction aborts. By
convention, bit0 is copied to TEXASR[56] (IBM bit 7) which is set if
- the failure is persistent.
+ the failure is persistent. PAPR saves 0xff-0xe0 for the hypervisor.
*/
-#define TM_CAUSE_RESCHED 0xfe
-#define TM_CAUSE_TLBI 0xfc
-#define TM_CAUSE_FAC_UNAV 0xfa
-#define TM_CAUSE_SYSCALL 0xf9 /* Persistent */
-#define TM_CAUSE_MISC 0xf6
-#define TM_CAUSE_SIGNAL 0xf4
+#define TM_CAUSE_PERSISTENT 0x01
+#define TM_CAUSE_RESCHED 0xde
+#define TM_CAUSE_TLBI 0xdc
+#define TM_CAUSE_FAC_UNAV 0xda
+#define TM_CAUSE_SYSCALL 0xd8 /* future use */
+#define TM_CAUSE_MISC 0xd6 /* future use */
+#define TM_CAUSE_SIGNAL 0xd4
#if defined(CONFIG_PPC_BOOK3S_64)
#define MSR_64BIT MSR_SF