diff options
Diffstat (limited to 'arch/parisc/kernel/entry.S')
| -rw-r--r-- | arch/parisc/kernel/entry.S | 53 |
1 files changed, 21 insertions, 32 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index 1b4732e20137..c7508f5717fb 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -766,7 +766,6 @@ END(fault_vector_11) #endif /* Fault vector is separately protected and *must* be on its own page */ .align PAGE_SIZE -ENTRY(end_fault_vector) .import handle_interruption,code .import do_cpu_irq_mask,code @@ -778,7 +777,6 @@ ENTRY(end_fault_vector) */ ENTRY_CFI(ret_from_kernel_thread) - /* Call schedule_tail first though */ BL schedule_tail, %r2 nop @@ -817,8 +815,9 @@ ENTRY_CFI(_switch_to) LDREG TASK_THREAD_INFO(%r25), %r25 bv %r0(%r2) mtctl %r25,%cr30 +ENDPROC_CFI(_switch_to) -_switch_to_ret: +ENTRY_CFI(_switch_to_ret) mtctl %r0, %cr0 /* Needed for single stepping */ callee_rest callee_rest_float @@ -826,7 +825,7 @@ _switch_to_ret: LDREG -RP_OFFSET(%r30), %r2 bv %r0(%r2) copy %r26, %r28 -ENDPROC_CFI(_switch_to) +ENDPROC_CFI(_switch_to_ret) /* * Common rfi return path for interruptions, kernel execve, and @@ -887,12 +886,14 @@ ENTRY_CFI(syscall_exit_rfi) STREG %r19,PT_SR5(%r16) STREG %r19,PT_SR6(%r16) STREG %r19,PT_SR7(%r16) +ENDPROC_CFI(syscall_exit_rfi) -intr_return: +ENTRY_CFI(intr_return) /* check for reschedule */ mfctl %cr30,%r1 LDREG TI_FLAGS(%r1),%r19 /* sched.h: TIF_NEED_RESCHED */ bb,<,n %r19,31-TIF_NEED_RESCHED,intr_do_resched /* forward */ +ENDPROC_CFI(intr_return) .import do_notify_resume,code intr_check_sig: @@ -1048,7 +1049,6 @@ intr_extint: b do_cpu_irq_mask ldo R%intr_return(%r2), %r2 /* return to intr_return, not here */ -ENDPROC_CFI(syscall_exit_rfi) /* Generic interruptions (illegal insn, unaligned, page fault, etc) */ @@ -1999,12 +1999,9 @@ ENDPROC_CFI(syscall_exit) .align L1_CACHE_BYTES .globl mcount .type mcount, @function -ENTRY(mcount) +ENTRY_CFI(mcount, caller) _mcount: .export _mcount,data - .proc - .callinfo caller,frame=0 - .entry /* * The 64bit mcount() function pointer needs 4 dwords, of which the * first two are free. We optimize it here and put 2 instructions for @@ -2026,18 +2023,13 @@ ftrace_stub: .dword mcount .dword 0 /* code in head.S puts value of global gp here */ #endif - .exit - .procend -ENDPROC(mcount) +ENDPROC_CFI(mcount) #ifdef CONFIG_FUNCTION_GRAPH_TRACER .align 8 .globl return_to_handler .type return_to_handler, @function -ENTRY_CFI(return_to_handler) - .proc - .callinfo caller,frame=FRAME_SIZE - .entry +ENTRY_CFI(return_to_handler, caller,frame=FRAME_SIZE) .export parisc_return_to_handler,data parisc_return_to_handler: copy %r3,%r1 @@ -2076,8 +2068,6 @@ parisc_return_to_handler: bv %r0(%rp) #endif LDREGM -FRAME_SIZE(%sp),%r3 - .exit - .procend ENDPROC_CFI(return_to_handler) #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ @@ -2087,31 +2077,30 @@ ENDPROC_CFI(return_to_handler) #ifdef CONFIG_IRQSTACKS /* void call_on_stack(unsigned long param1, void *func, unsigned long new_stack) */ -ENTRY_CFI(call_on_stack) +ENTRY_CFI(call_on_stack, FRAME=2*FRAME_SIZE,CALLS,SAVE_RP,SAVE_SP) copy %sp, %r1 /* Regarding the HPPA calling conventions for function pointers, we assume the PIC register is not changed across call. For CONFIG_64BIT, the argument pointer is left to point at the argument region allocated for the call to call_on_stack. */ + + /* Switch to new stack. We allocate two frames. */ + ldo 2*FRAME_SIZE(%arg2), %sp # ifdef CONFIG_64BIT - /* Switch to new stack. We allocate two 128 byte frames. */ - ldo 256(%arg2), %sp /* Save previous stack pointer and return pointer in frame marker */ - STREG %rp, -144(%sp) + STREG %rp, -FRAME_SIZE-RP_OFFSET(%sp) /* Calls always use function descriptor */ LDREG 16(%arg1), %arg1 bve,l (%arg1), %rp - STREG %r1, -136(%sp) - LDREG -144(%sp), %rp + STREG %r1, -FRAME_SIZE-REG_SZ(%sp) + LDREG -FRAME_SIZE-RP_OFFSET(%sp), %rp bve (%rp) - LDREG -136(%sp), %sp + LDREG -FRAME_SIZE-REG_SZ(%sp), %sp # else - /* Switch to new stack. We allocate two 64 byte frames. */ - ldo 128(%arg2), %sp /* Save previous stack pointer and return pointer in frame marker */ - STREG %r1, -68(%sp) - STREG %rp, -84(%sp) + STREG %r1, -FRAME_SIZE-REG_SZ(%sp) + STREG %rp, -FRAME_SIZE-RP_OFFSET(%sp) /* Calls use function descriptor if PLABEL bit is set */ bb,>=,n %arg1, 30, 1f depwi 0,31,2, %arg1 @@ -2119,9 +2108,9 @@ ENTRY_CFI(call_on_stack) 1: be,l 0(%sr4,%arg1), %sr0, %r31 copy %r31, %rp - LDREG -84(%sp), %rp + LDREG -FRAME_SIZE-RP_OFFSET(%sp), %rp bv (%rp) - LDREG -68(%sp), %sp + LDREG -FRAME_SIZE-REG_SZ(%sp), %sp # endif /* CONFIG_64BIT */ ENDPROC_CFI(call_on_stack) #endif /* CONFIG_IRQSTACKS */ |