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| author | Michael Neuling <mikey@neuling.org> | 2013-05-26 22:09:37 +0400 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-06-01 02:29:22 +0400 |
| commit | 35f7097fcedec63fcba1852dbee96f74a2d90878 (patch) | |
| tree | 536d59a4eed1079cc42f6f1a6fbe4c24956ee1eb /arch | |
| parent | 58f8bbd2e39c3732c55698494338ee19a92c53a0 (diff) | |
| download | linux-35f7097fcedec63fcba1852dbee96f74a2d90878.tar.xz | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/include/asm/reg.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index a6136515c7f2..8f6a94b2dc99 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 |