From eecff81d1fcda22cd0029d11fe2a71dceed11dad Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Tue, 27 Oct 2009 18:46:55 +0000 Subject: powerpc: Create PPC_WARN_ALIGNMENT to match PPC_WARN_EMULATED perf_event wants a separate event for alignment and emulation faults, so create another emulation event. This will make it easy to hook in perf_event at one spot. We pass in regs which will be required for these events. Signed-off-by: Anton Blanchard Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/emulated_ops.h | 7 +++++-- arch/powerpc/kernel/align.c | 12 ++++++------ arch/powerpc/kernel/traps.c | 18 +++++++++--------- 3 files changed, 20 insertions(+), 17 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/include/asm/emulated_ops.h b/arch/powerpc/include/asm/emulated_ops.h index 9154e852673..640c4e456aa 100644 --- a/arch/powerpc/include/asm/emulated_ops.h +++ b/arch/powerpc/include/asm/emulated_ops.h @@ -57,7 +57,7 @@ extern u32 ppc_warn_emulated; extern void ppc_warn_emulated_print(const char *type); -#define PPC_WARN_EMULATED(type) \ +#define __PPC_WARN_EMULATED(type) \ do { \ atomic_inc(&ppc_emulated.type.val); \ if (ppc_warn_emulated) \ @@ -66,8 +66,11 @@ extern void ppc_warn_emulated_print(const char *type); #else /* !CONFIG_PPC_EMULATED_STATS */ -#define PPC_WARN_EMULATED(type) do { } while (0) +#define __PPC_WARN_EMULATED(type) do { } while (0) #endif /* !CONFIG_PPC_EMULATED_STATS */ +#define PPC_WARN_EMULATED(type, regs) __PPC_WARN_EMULATED(type) +#define PPC_WARN_ALIGNMENT(type, regs) __PPC_WARN_EMULATED(type) + #endif /* _ASM_POWERPC_EMULATED_OPS_H */ diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c index a5b632e52fa..3839839f83c 100644 --- a/arch/powerpc/kernel/align.c +++ b/arch/powerpc/kernel/align.c @@ -732,7 +732,7 @@ int fix_alignment(struct pt_regs *regs) #ifdef CONFIG_SPE if ((instr >> 26) == 0x4) { - PPC_WARN_EMULATED(spe); + PPC_WARN_ALIGNMENT(spe, regs); return emulate_spe(regs, reg, instr); } #endif @@ -786,7 +786,7 @@ int fix_alignment(struct pt_regs *regs) flags |= SPLT; nb = 8; } - PPC_WARN_EMULATED(vsx); + PPC_WARN_ALIGNMENT(vsx, regs); return emulate_vsx(addr, reg, areg, regs, flags, nb); } #endif @@ -794,7 +794,7 @@ int fix_alignment(struct pt_regs *regs) * the exception of DCBZ which is handled as a special case here */ if (instr == DCBZ) { - PPC_WARN_EMULATED(dcbz); + PPC_WARN_ALIGNMENT(dcbz, regs); return emulate_dcbz(regs, addr); } if (unlikely(nb == 0)) @@ -804,7 +804,7 @@ int fix_alignment(struct pt_regs *regs) * function */ if (flags & M) { - PPC_WARN_EMULATED(multiple); + PPC_WARN_ALIGNMENT(multiple, regs); return emulate_multiple(regs, addr, reg, nb, flags, instr, swiz); } @@ -825,11 +825,11 @@ int fix_alignment(struct pt_regs *regs) /* Special case for 16-byte FP loads and stores */ if (nb == 16) { - PPC_WARN_EMULATED(fp_pair); + PPC_WARN_ALIGNMENT(fp_pair, regs); return emulate_fp_pair(addr, reg, flags); } - PPC_WARN_EMULATED(unaligned); + PPC_WARN_ALIGNMENT(unaligned, regs); /* If we are loading, get the data from user space, else * get it from register values diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 6f0ae1a9bfa..9d1f9354d6c 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -759,7 +759,7 @@ static int emulate_instruction(struct pt_regs *regs) /* Emulate the mfspr rD, PVR. */ if ((instword & PPC_INST_MFSPR_PVR_MASK) == PPC_INST_MFSPR_PVR) { - PPC_WARN_EMULATED(mfpvr); + PPC_WARN_EMULATED(mfpvr, regs); rd = (instword >> 21) & 0x1f; regs->gpr[rd] = mfspr(SPRN_PVR); return 0; @@ -767,7 +767,7 @@ static int emulate_instruction(struct pt_regs *regs) /* Emulating the dcba insn is just a no-op. */ if ((instword & PPC_INST_DCBA_MASK) == PPC_INST_DCBA) { - PPC_WARN_EMULATED(dcba); + PPC_WARN_EMULATED(dcba, regs); return 0; } @@ -776,7 +776,7 @@ static int emulate_instruction(struct pt_regs *regs) int shift = (instword >> 21) & 0x1c; unsigned long msk = 0xf0000000UL >> shift; - PPC_WARN_EMULATED(mcrxr); + PPC_WARN_EMULATED(mcrxr, regs); regs->ccr = (regs->ccr & ~msk) | ((regs->xer >> shift) & msk); regs->xer &= ~0xf0000000UL; return 0; @@ -784,19 +784,19 @@ static int emulate_instruction(struct pt_regs *regs) /* Emulate load/store string insn. */ if ((instword & PPC_INST_STRING_GEN_MASK) == PPC_INST_STRING) { - PPC_WARN_EMULATED(string); + PPC_WARN_EMULATED(string, regs); return emulate_string_inst(regs, instword); } /* Emulate the popcntb (Population Count Bytes) instruction. */ if ((instword & PPC_INST_POPCNTB_MASK) == PPC_INST_POPCNTB) { - PPC_WARN_EMULATED(popcntb); + PPC_WARN_EMULATED(popcntb, regs); return emulate_popcntb_inst(regs, instword); } /* Emulate isel (Integer Select) instruction */ if ((instword & PPC_INST_ISEL_MASK) == PPC_INST_ISEL) { - PPC_WARN_EMULATED(isel); + PPC_WARN_EMULATED(isel, regs); return emulate_isel(regs, instword); } @@ -995,7 +995,7 @@ void SoftwareEmulation(struct pt_regs *regs) #ifdef CONFIG_MATH_EMULATION errcode = do_mathemu(regs); if (errcode >= 0) - PPC_WARN_EMULATED(math); + PPC_WARN_EMULATED(math, regs); switch (errcode) { case 0: @@ -1018,7 +1018,7 @@ void SoftwareEmulation(struct pt_regs *regs) #elif defined(CONFIG_8XX_MINIMAL_FPEMU) errcode = Soft_emulate_8xx(regs); if (errcode >= 0) - PPC_WARN_EMULATED(8xx); + PPC_WARN_EMULATED(8xx, regs); switch (errcode) { case 0: @@ -1129,7 +1129,7 @@ void altivec_assist_exception(struct pt_regs *regs) flush_altivec_to_thread(current); - PPC_WARN_EMULATED(altivec); + PPC_WARN_EMULATED(altivec, regs); err = emulate_altivec(regs); if (err == 0) { regs->nip += 4; /* skip emulated instruction */ -- cgit v1.2.3