diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mn10300/include/asm/exceptions.h | 5 | ||||
| -rw-r--r-- | arch/mn10300/kernel/entry.S | 25 | ||||
| -rw-r--r-- | arch/mn10300/kernel/traps.c | 22 | ||||
| -rw-r--r-- | arch/mn10300/mm/fault.c | 5 |
4 files changed, 2 insertions, 55 deletions
diff --git a/arch/mn10300/include/asm/exceptions.h b/arch/mn10300/include/asm/exceptions.h index fa16466..3f3826ab 100644 --- a/arch/mn10300/include/asm/exceptions.h +++ b/arch/mn10300/include/asm/exceptions.h @@ -15,8 +15,8 @@ /* * define the breakpoint instruction opcode to use - * - note that the JTAG unit steals 0xFF, so we want to avoid that if we can - * (can use 0xF7) + * - note that the JTAG unit steals 0xFF, so you can't use JTAG and GDBSTUB at + * the same time. */ #define GDBSTUB_BKPT 0xFF @@ -90,7 +90,6 @@ enum exception_code { extern void __set_intr_stub(enum exception_code code, void *handler); extern void set_intr_stub(enum exception_code code, void *handler); -extern void set_jtag_stub(enum exception_code code, void *handler); struct pt_regs; diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S index 3d394b4..b82ce7b 100644 --- a/arch/mn10300/kernel/entry.S +++ b/arch/mn10300/kernel/entry.S @@ -216,31 +216,6 @@ ENTRY(irq_handler) ############################################################################### # -# Monitor Signal handler entry point -# -############################################################################### -ENTRY(monitor_signal) - movbu (0xae000001),d1 - cmp 1,d1 - beq monsignal - ret [],0 - -monsignal: - or EPSW_NMID,epsw - mov d0,a0 - mov a0,sp - mov (REG_EPSW,fp),d1 - and ~EPSW_nSL,d1 - mov d1,(REG_EPSW,fp) - movm (sp),[d2,d3,a2,a3,exreg0,exreg1,exother] - mov (sp),a1 - mov a1,usp - movm (sp),[other] - add 4,sp -here: jmp 0x8e000008-here+0x8e000008 - -############################################################################### -# # Double Fault handler entry point # - note that there will not be a stack, D0/A0 will hold EPSW/PC as were # diff --git a/arch/mn10300/kernel/traps.c b/arch/mn10300/kernel/traps.c index 91365ad..a64604b 100644 --- a/arch/mn10300/kernel/traps.c +++ b/arch/mn10300/kernel/traps.c @@ -538,28 +538,6 @@ void __init set_intr_stub(enum exception_code code, void *handler) } /* - * set an interrupt stub to invoke the JTAG unit and then jump to a handler - */ -void __init set_jtag_stub(enum exception_code code, void *handler) -{ - unsigned long addr; - u8 *vector = (u8 *)(CONFIG_INTERRUPT_VECTOR_BASE + code); - - addr = (unsigned long) handler - ((unsigned long) vector + 1); - vector[0] = 0xff; /* PI to jump into JTAG debugger */ - vector[1] = 0xdc; /* jmp handler */ - vector[2] = addr; - vector[3] = addr >> 8; - vector[4] = addr >> 16; - vector[5] = addr >> 24; - vector[6] = 0xcb; - vector[7] = 0xcb; - - mn10300_dcache_flush_inv(); - flush_icache_range((unsigned long) vector, (unsigned long) vector + 8); -} - -/* * initialise the exception table */ void __init trap_init(void) diff --git a/arch/mn10300/mm/fault.c b/arch/mn10300/mm/fault.c index 81f153f..906e4c8 100644 --- a/arch/mn10300/mm/fault.c +++ b/arch/mn10300/mm/fault.c @@ -100,8 +100,6 @@ static void print_pagetable_entries(pgd_t *pgdir, unsigned long address) } #endif -asmlinkage void monitor_signal(struct pt_regs *); - /* * This routine handles page faults. It determines the address, * and the problem, and then passes it off to one of the appropriate @@ -279,7 +277,6 @@ good_area: */ bad_area: up_read(&mm->mmap_sem); - monitor_signal(regs); /* User mode accesses just cause a SIGSEGV */ if ((fault_code & MMUFCR_xFC_ACCESS) == MMUFCR_xFC_ACCESS_USR) { @@ -292,7 +289,6 @@ bad_area: } no_context: - monitor_signal(regs); /* Are we prepared to handle this kernel fault? */ if (fixup_exception(regs)) return; @@ -345,7 +341,6 @@ out_of_memory: do_sigbus: up_read(&mm->mmap_sem); - monitor_signal(regs); /* * Send a sigbus, regardless of whether we were in kernel |
