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Commit 35f7097f authored by Michael Neuling's avatar Michael Neuling Committed by Benjamin Herrenschmidt
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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: default avatarMichael Neuling <mikey@neuling.org>
Cc: <stable@vger.kernel.org> # 3.9 only
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 58f8bbd2

arch/powerpc/include/asm/reg.h

+8 −7
Original line number Diff line number Diff line
@@ -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