Replace the magic number used to check for DSI exception with a meaningful value. Signed-off-by: Ram Pai <linuxram@xxxxxxxxxx> --- arch/powerpc/include/asm/reg.h | 7 ++++++- arch/powerpc/kernel/exceptions-64s.S | 2 +- 2 files changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 7e50e47..ba110dd 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -272,16 +272,21 @@ #define SPRN_DAR 0x013 /* Data Address Register */ #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ +#define DSISR_BIT32 0x80000000 /* not defined */ #define DSISR_NOHPTE 0x40000000 /* no translation found */ +#define DSISR_PAGEATTR_CONFLT 0x20000000 /* page attribute conflict */ +#define DSISR_BIT35 0x10000000 /* not defined */ #define DSISR_PROTFAULT 0x08000000 /* protection fault */ #define DSISR_BADACCESS 0x04000000 /* bad access to CI or G */ #define DSISR_ISSTORE 0x02000000 /* access was a store */ #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ -#define DSISR_NOSEGMENT 0x00200000 /* SLB miss */ #define DSISR_KEYFAULT 0x00200000 /* Key fault */ +#define DSISR_BIT43 0x00100000 /* not defined */ #define DSISR_UNSUPP_MMU 0x00080000 /* Unsupported MMU config */ #define DSISR_SET_RC 0x00040000 /* Failed setting of R/C bits */ #define DSISR_PGDIRFAULT 0x00020000 /* Fault on page directory */ +#define DSISR_PAGE_FAULT_MASK (DSISR_BIT32 | DSISR_PAGEATTR_CONFLT | \ + DSISR_BADACCESS | DSISR_BIT43) #define SPRN_TBRL 0x10C /* Time Base Read Lower Register (user, R/O) */ #define SPRN_TBRU 0x10D /* Time Base Read Upper Register (user, R/O) */ #define SPRN_CIR 0x11B /* Chip Information Register (hyper, R/0) */ diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index ae418b8..3fd0528 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1411,7 +1411,7 @@ USE_TEXT_SECTION() .balign IFETCH_ALIGN_BYTES do_hash_page: #ifdef CONFIG_PPC_STD_MMU_64 - andis. r0,r4,0xa410 /* weird error? */ + andis. r0,r4,DSISR_PAGE_FAULT_MASK@h bne- handle_page_fault /* if not, try to insert a HPTE */ andis. r0,r4,DSISR_DABRMATCH@h bne- handle_dabr_fault -- 1.8.3.1 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
