diff options
Diffstat (limited to 'arch/blackfin/mach-common/entry.S')
| -rw-r--r-- | arch/blackfin/mach-common/entry.S | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 0efd5f5b7ba..fae77465137 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -112,24 +112,21 @@ ENTRY(_ex_dcplb_viol) ENTRY(_ex_dcplb_miss) ENTRY(_ex_icplb_miss) (R7:6,P5:4) = [sp++]; - ASTAT = [sp++]; - SAVE_ALL_SYS -#ifdef CONFIG_MPU + /* We leave the previously pushed ASTAT on the stack. */ + SAVE_CONTEXT_CPLB + /* 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; CC = R0 == 0; IF !CC JUMP _handle_bad_cplb; -#else - call __cplb_hdr; -#endif #ifdef CONFIG_DEBUG_DOUBLEFAULT /* While we were processing this, did we double fault? */ @@ -143,7 +140,8 @@ ENTRY(_ex_icplb_miss) #endif DEBUG_HWTRACE_RESTORE(p5, r7) - RESTORE_ALL_SYS + RESTORE_CONTEXT_CPLB + ASTAT = [SP++]; SP = EX_SCRATCH_REG; rtx; ENDPROC(_ex_icplb_miss) @@ -298,9 +296,8 @@ ENTRY(_handle_bad_cplb) * the stack to get ready so, we can fall through - we * need to make a CPLB exception look like a normal exception */ - - RESTORE_ALL_SYS - [--sp] = ASTAT; + RESTORE_CONTEXT_CPLB + /* ASTAT is still on the stack, where it is needed. */ [--sp] = (R7:6,P5:4); ENTRY(_ex_replaceable) |