diff options
Diffstat (limited to 'arch/powerpc/kernel/head_booke.h')
| -rw-r--r-- | arch/powerpc/kernel/head_booke.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index b0874d228eaf..f277fade1932 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -72,7 +72,7 @@ #define DEBUG_STACK_BASE dbgirq_ctx #define DEBUG_SPRG SPRN_SPRG6W -#define EXC_LVL_FRAME_OVERHEAD (THREAD_SIZE - INT_FRAME_SIZE) +#define EXC_LVL_FRAME_OVERHEAD (THREAD_SIZE - INT_FRAME_SIZE - EXC_LVL_SIZE) #ifdef CONFIG_SMP #define BOOKE_LOAD_EXC_LEVEL_STACK(level) \ @@ -376,4 +376,25 @@ label: addi r3,r1,STACK_FRAME_OVERHEAD; \ EXC_XFER_EE_LITE(0x800, kernel_fp_unavailable_exception) +#ifndef __ASSEMBLY__ +struct exception_regs { + unsigned long mas0; + unsigned long mas1; + unsigned long mas2; + unsigned long mas3; + unsigned long mas6; + unsigned long mas7; + unsigned long srr0; + unsigned long srr1; + unsigned long csrr0; + unsigned long csrr1; + unsigned long dsrr0; + unsigned long dsrr1; + unsigned long saved_ksp_limit; +}; + +/* ensure this structure is always sized to a multiple of the stack alignment */ +#define STACK_EXC_LVL_FRAME_SIZE _ALIGN_UP(sizeof (struct exception_regs), 16) + +#endif /* __ASSEMBLY__ */ #endif /* __HEAD_BOOKE_H__ */ |