diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/mach-common/entry.S | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index cee54cebbc65..a504c65d9990 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -121,10 +121,14 @@ ENTRY(_ex_icplb_miss) (R7:6,P5:4) = [sp++]; ASTAT = [sp++]; SAVE_ALL_SYS - DEBUG_HWTRACE_SAVE(p5, r7) #ifdef CONFIG_MPU + /* We must load R1 here, _before_ DEBUG_HWTRACE_SAVE, since that + * will change the stack pointer. */ R0 = SEQSTAT; R1 = SP; +#endif + DEBUG_HWTRACE_SAVE(p5, r7) +#ifdef CONFIG_MPU sp += -12; call _cplb_hdr; sp += 12; @@ -191,6 +195,7 @@ ENTRY(_bfin_return_from_exception) ENDPROC(_bfin_return_from_exception) ENTRY(_handle_bad_cplb) + DEBUG_HWTRACE_RESTORE(p5, r7) /* To get here, we just tried and failed to change a CPLB * so, handle things in trap_c (C code), by lowering to * IRQ5, just like we normally do. Since this is not a |