diff options
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 129 |
1 files changed, 62 insertions, 67 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 6f7eb7e00c79..4dd38f129153 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -63,7 +63,7 @@ debug_transfer_to_handler: .globl crit_transfer_to_handler crit_transfer_to_handler: -#ifdef CONFIG_FSL_BOOKE +#ifdef CONFIG_PPC_BOOK3E_MMU mfspr r0,SPRN_MAS0 stw r0,MAS0(r11) mfspr r0,SPRN_MAS1 @@ -78,7 +78,7 @@ crit_transfer_to_handler: mfspr r0,SPRN_MAS7 stw r0,MAS7(r11) #endif /* CONFIG_PHYS_64BIT */ -#endif /* CONFIG_FSL_BOOKE */ +#endif /* CONFIG_PPC_BOOK3E_MMU */ #ifdef CONFIG_44x mfspr r0,SPRN_MMUCR stw r0,MMUCR(r11) @@ -914,7 +914,7 @@ exc_exit_restart_end: mtspr SPRN_##exc_lvl_srr0,r9; \ mtspr SPRN_##exc_lvl_srr1,r10; -#if defined(CONFIG_FSL_BOOKE) +#if defined(CONFIG_PPC_BOOK3E_MMU) #ifdef CONFIG_PHYS_64BIT #define RESTORE_MAS7 \ lwz r11,MAS7(r1); \ @@ -956,7 +956,7 @@ ret_from_crit_exc: lwz r10,crit_srr1@l(r10); mtspr SPRN_SRR0,r9; mtspr SPRN_SRR1,r10; - RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI) + RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, PPC_RFCI) #endif /* CONFIG_40x */ #ifdef CONFIG_BOOKE @@ -967,7 +967,7 @@ ret_from_crit_exc: stw r10,KSP_LIMIT(r9) RESTORE_xSRR(SRR0,SRR1); RESTORE_MMU_REGS; - RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, RFCI) + RET_FROM_EXC_LEVEL(SPRN_CSRR0, SPRN_CSRR1, PPC_RFCI) .globl ret_from_debug_exc ret_from_debug_exc: @@ -981,7 +981,7 @@ ret_from_debug_exc: RESTORE_xSRR(SRR0,SRR1); RESTORE_xSRR(CSRR0,CSRR1); RESTORE_MMU_REGS; - RET_FROM_EXC_LEVEL(SPRN_DSRR0, SPRN_DSRR1, RFDI) + RET_FROM_EXC_LEVEL(SPRN_DSRR0, SPRN_DSRR1, PPC_RFDI) .globl ret_from_mcheck_exc ret_from_mcheck_exc: @@ -992,7 +992,7 @@ ret_from_mcheck_exc: RESTORE_xSRR(CSRR0,CSRR1); RESTORE_xSRR(DSRR0,DSRR1); RESTORE_MMU_REGS; - RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, RFMCI) + RET_FROM_EXC_LEVEL(SPRN_MCSRR0, SPRN_MCSRR1, PPC_RFMCI) #endif /* CONFIG_BOOKE */ /* @@ -1176,59 +1176,27 @@ _GLOBAL(_mcount) bctr _GLOBAL(ftrace_caller) - /* Based off of objdump optput from glibc */ - stwu r1,-48(r1) - stw r3, 12(r1) - stw r4, 16(r1) - stw r5, 20(r1) - stw r6, 24(r1) - mflr r3 - lwz r4, 52(r1) - mfcr r5 - stw r7, 28(r1) - stw r8, 32(r1) - stw r9, 36(r1) - stw r10,40(r1) - stw r3, 44(r1) - stw r5, 8(r1) + MCOUNT_SAVE_FRAME + /* r3 ends up with link register */ subi r3, r3, MCOUNT_INSN_SIZE .globl ftrace_call ftrace_call: bl ftrace_stub nop - lwz r6, 8(r1) - lwz r0, 44(r1) - lwz r3, 12(r1) - mtctr r0 - lwz r4, 16(r1) - mtcr r6 - lwz r5, 20(r1) - lwz r6, 24(r1) - lwz r0, 52(r1) - lwz r7, 28(r1) - lwz r8, 32(r1) - mtlr r0 - lwz r9, 36(r1) - lwz r10,40(r1) - addi r1, r1, 48 +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +.globl ftrace_graph_call +ftrace_graph_call: + b ftrace_graph_stub +_GLOBAL(ftrace_graph_stub) +#endif + MCOUNT_RESTORE_FRAME + /* old link register ends up in ctr reg */ bctr #else _GLOBAL(mcount) _GLOBAL(_mcount) - stwu r1,-48(r1) - stw r3, 12(r1) - stw r4, 16(r1) - stw r5, 20(r1) - stw r6, 24(r1) - mflr r3 - lwz r4, 52(r1) - mfcr r5 - stw r7, 28(r1) - stw r8, 32(r1) - stw r9, 36(r1) - stw r10,40(r1) - stw r3, 44(r1) - stw r5, 8(r1) + + MCOUNT_SAVE_FRAME subi r3, r3, MCOUNT_INSN_SIZE LOAD_REG_ADDR(r5, ftrace_trace_function) @@ -1236,28 +1204,55 @@ _GLOBAL(_mcount) mtctr r5 bctrl - nop - lwz r6, 8(r1) - lwz r0, 44(r1) - lwz r3, 12(r1) - mtctr r0 - lwz r4, 16(r1) - mtcr r6 - lwz r5, 20(r1) - lwz r6, 24(r1) - lwz r0, 52(r1) - lwz r7, 28(r1) - lwz r8, 32(r1) - mtlr r0 - lwz r9, 36(r1) - lwz r10,40(r1) - addi r1, r1, 48 +#ifdef CONFIG_FUNCTION_GRAPH_TRACER + b ftrace_graph_caller +#endif + MCOUNT_RESTORE_FRAME bctr #endif _GLOBAL(ftrace_stub) blr +#ifdef CONFIG_FUNCTION_GRAPH_TRACER +_GLOBAL(ftrace_graph_caller) + /* load r4 with local address */ + lwz r4, 44(r1) + subi r4, r4, MCOUNT_INSN_SIZE + + /* get the parent address */ + addi r3, r1, 52 + + bl prepare_ftrace_return + nop + + MCOUNT_RESTORE_FRAME + /* old link register ends up in ctr reg */ + bctr + +_GLOBAL(return_to_handler) + /* need to save return values */ + stwu r1, -32(r1) + stw r3, 20(r1) + stw r4, 16(r1) + stw r31, 12(r1) + mr r31, r1 + + bl ftrace_return_to_handler + nop + + /* return value has real return address */ + mtlr r3 + + lwz r3, 20(r1) + lwz r4, 16(r1) + lwz r31,12(r1) + lwz r1, 0(r1) + + /* Jump back to real return address */ + blr +#endif /* CONFIG_FUNCTION_GRAPH_TRACER */ + #endif /* CONFIG_MCOUNT */ |