diff options
Diffstat (limited to 'arch/mn10300/include/asm/frame.inc')
| -rw-r--r-- | arch/mn10300/include/asm/frame.inc | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/mn10300/include/asm/frame.inc b/arch/mn10300/include/asm/frame.inc index 5b1949bdf03..406060e5e1c 100644 --- a/arch/mn10300/include/asm/frame.inc +++ b/arch/mn10300/include/asm/frame.inc @@ -18,6 +18,9 @@ #ifndef __ASM_OFFSETS_H__ #include <asm/asm-offsets.h> #endif +#ifdef CONFIG_SMP +#include <proc/smp-regs.h> +#endif #define pi break @@ -37,9 +40,25 @@ movm [d2,d3,a2,a3,exreg0,exreg1,exother],(sp) mov sp,fp # FRAME pointer in A3 add -12,sp # allow for calls to be made +#ifdef CONFIG_SMP +#ifdef CONFIG_PREEMPT /* FIXME */ + mov epsw,d2 + and ~EPSW_IE,epsw +#endif + mov (CPUID),a0 + add a0,a0 + add a0,a0 + mov (___frame,a0),a1 + mov a1,(REG_NEXT,fp) + mov fp,(___frame,a0) +#ifdef CONFIG_PREEMPT /* FIXME */ + mov d2,epsw +#endif +#else /* CONFIG_SMP */ mov (__frame),a1 mov a1,(REG_NEXT,fp) mov fp,(__frame) +#endif /* CONFIG_SMP */ and ~EPSW_FE,epsw # disable the FPU inside the kernel @@ -57,10 +76,27 @@ .macro RESTORE_ALL # peel back the stack to the calling frame # - this permits execve() to discard extra frames due to kernel syscalls +#ifdef CONFIG_SMP +#ifdef CONFIG_PREEMPT /* FIXME */ + mov epsw,d2 + and ~EPSW_IE,epsw +#endif + mov (CPUID),a0 + add a0,a0 + add a0,a0 + mov (___frame,a0),fp + mov fp,sp + mov (REG_NEXT,fp),d0 # userspace has regs->next == 0 + mov d0,(___frame,a0) +#ifdef CONFIG_PREEMPT /* FIXME */ + mov d2,epsw +#endif +#else /* CONFIG_SMP */ mov (__frame),fp mov fp,sp mov (REG_NEXT,fp),d0 # userspace has regs->next == 0 mov d0,(__frame) +#endif /* CONFIG_SMP */ #ifndef CONFIG_MN10300_USING_JTAG mov (REG_EPSW,fp),d0 |