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Re: [PATCH v4 3/4] target/ppc: Convert debug to trace events (decremente


From: David Gibson
Subject: Re: [PATCH v4 3/4] target/ppc: Convert debug to trace events (decrementer and IRQ)
Date: Mon, 20 Sep 2021 17:34:48 +1000

On Mon, Sep 20, 2021 at 08:12:02AM +0200, Cédric Le Goater wrote:
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

So.. all the functions here are called *set_irq*, but you've named the
tracepoints *irq_set*.  It's not a big deal, but it seems like it
would be less confusing if you flipped that around to match the
function names.

> ---
>  hw/ppc/ppc.c        | 169 ++++++++++++++++----------------------------
>  hw/ppc/trace-events |  22 +++++-
>  2 files changed, 82 insertions(+), 109 deletions(-)
> 
> diff --git a/hw/ppc/ppc.c b/hw/ppc/ppc.c
> index a327206a0a1e..b813ef732ec1 100644
> --- a/hw/ppc/ppc.c
> +++ b/hw/ppc/ppc.c
> @@ -37,22 +37,6 @@
>  #include "migration/vmstate.h"
>  #include "trace.h"
>  
> -//#define PPC_DEBUG_IRQ
> -//#define PPC_DEBUG_TB
> -
> -#ifdef PPC_DEBUG_IRQ
> -#  define LOG_IRQ(...) qemu_log_mask(CPU_LOG_INT, ## __VA_ARGS__)
> -#else
> -#  define LOG_IRQ(...) do { } while (0)
> -#endif
> -
> -
> -#ifdef PPC_DEBUG_TB
> -#  define LOG_TB(...) qemu_log(__VA_ARGS__)
> -#else
> -#  define LOG_TB(...) do { } while (0)
> -#endif
> -
>  static void cpu_ppc_tb_stop (CPUPPCState *env);
>  static void cpu_ppc_tb_start (CPUPPCState *env);
>  
> @@ -86,9 +70,8 @@ void ppc_set_irq(PowerPCCPU *cpu, int n_IRQ, int level)
>      }
>  
>  
> -    LOG_IRQ("%s: %p n_IRQ %d level %d => pending %08" PRIx32
> -                "req %08x\n", __func__, env, n_IRQ, level,
> -                env->pending_interrupts, CPU(cpu)->interrupt_request);
> +    trace_ppc_irq_set_exit(env, n_IRQ, level, env->pending_interrupts,
> +                           CPU(cpu)->interrupt_request);
>  
>      if (locked) {
>          qemu_mutex_unlock_iothread();
> @@ -102,8 +85,8 @@ static void ppc6xx_set_irq(void *opaque, int pin, int 
> level)
>      CPUPPCState *env = &cpu->env;
>      int cur_level;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -                env, pin, level);
> +    trace_ppc_irq_set(env, pin, level);
> +
>      cur_level = (env->irq_input_state >> pin) & 1;
>      /* Don't generate spurious events */
>      if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
> @@ -112,8 +95,7 @@ static void ppc6xx_set_irq(void *opaque, int pin, int 
> level)
>          switch (pin) {
>          case PPC6xx_INPUT_TBEN:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: %s the time base\n",
> -                        __func__, level ? "start" : "stop");
> +            trace_ppc_irq_set_state("time base", level);
>              if (level) {
>                  cpu_ppc_tb_start(env);
>              } else {
> @@ -122,14 +104,12 @@ static void ppc6xx_set_irq(void *opaque, int pin, int 
> level)
>              break;
>          case PPC6xx_INPUT_INT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("external IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>              break;
>          case PPC6xx_INPUT_SMI:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the SMI IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("SMI IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_SMI, level);
>              break;
>          case PPC6xx_INPUT_MCP:
> @@ -138,8 +118,7 @@ static void ppc6xx_set_irq(void *opaque, int pin, int 
> level)
>               *            603/604/740/750: check HID0[EMCP]
>               */
>              if (cur_level == 1 && level == 0) {
> -                LOG_IRQ("%s: raise machine check state\n",
> -                            __func__);
> +                trace_ppc_irq_set_state("machine check", 1);
>                  ppc_set_irq(cpu, PPC_INTERRUPT_MCK, 1);
>              }
>              break;
> @@ -148,20 +127,19 @@ static void ppc6xx_set_irq(void *opaque, int pin, int 
> level)
>              /* XXX: TODO: relay the signal to CKSTP_OUT pin */
>              /* XXX: Note that the only way to restart the CPU is to reset it 
> */
>              if (level) {
> -                LOG_IRQ("%s: stop the CPU\n", __func__);
> +                trace_ppc_irq_cpu("stop");
>                  cs->halted = 1;
>              }
>              break;
>          case PPC6xx_INPUT_HRESET:
>              /* Level sensitive - active low */
>              if (level) {
> -                LOG_IRQ("%s: reset the CPU\n", __func__);
> +                trace_ppc_irq_reset("CPU");
>                  cpu_interrupt(cs, CPU_INTERRUPT_RESET);
>              }
>              break;
>          case PPC6xx_INPUT_SRESET:
> -            LOG_IRQ("%s: set the RESET IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("RESET IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_RESET, level);
>              break;
>          default:
> @@ -190,8 +168,8 @@ static void ppc970_set_irq(void *opaque, int pin, int 
> level)
>      CPUPPCState *env = &cpu->env;
>      int cur_level;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -                env, pin, level);
> +    trace_ppc_irq_set(env, pin, level);
> +
>      cur_level = (env->irq_input_state >> pin) & 1;
>      /* Don't generate spurious events */
>      if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
> @@ -200,14 +178,12 @@ static void ppc970_set_irq(void *opaque, int pin, int 
> level)
>          switch (pin) {
>          case PPC970_INPUT_INT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("external IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>              break;
>          case PPC970_INPUT_THINT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the SMI IRQ state to %d\n", __func__,
> -                        level);
> +            trace_ppc_irq_set_state("SMI IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_THERM, level);
>              break;
>          case PPC970_INPUT_MCP:
> @@ -216,8 +192,7 @@ static void ppc970_set_irq(void *opaque, int pin, int 
> level)
>               *            603/604/740/750: check HID0[EMCP]
>               */
>              if (cur_level == 1 && level == 0) {
> -                LOG_IRQ("%s: raise machine check state\n",
> -                            __func__);
> +                trace_ppc_irq_set_state("machine check", 1);
>                  ppc_set_irq(cpu, PPC_INTERRUPT_MCK, 1);
>              }
>              break;
> @@ -225,10 +200,10 @@ static void ppc970_set_irq(void *opaque, int pin, int 
> level)
>              /* Level sensitive - active low */
>              /* XXX: TODO: relay the signal to CKSTP_OUT pin */
>              if (level) {
> -                LOG_IRQ("%s: stop the CPU\n", __func__);
> +                trace_ppc_irq_cpu("stop");
>                  cs->halted = 1;
>              } else {
> -                LOG_IRQ("%s: restart the CPU\n", __func__);
> +                trace_ppc_irq_cpu("restart");
>                  cs->halted = 0;
>                  qemu_cpu_kick(cs);
>              }
> @@ -240,13 +215,11 @@ static void ppc970_set_irq(void *opaque, int pin, int 
> level)
>              }
>              break;
>          case PPC970_INPUT_SRESET:
> -            LOG_IRQ("%s: set the RESET IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("RESET IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_RESET, level);
>              break;
>          case PPC970_INPUT_TBEN:
> -            LOG_IRQ("%s: set the TBEN state to %d\n", __func__,
> -                        level);
> +            trace_ppc_irq_set_state("TBEN IRQ", level);
>              /* XXX: TODO */
>              break;
>          default:
> @@ -272,14 +245,12 @@ static void power7_set_irq(void *opaque, int pin, int 
> level)
>  {
>      PowerPCCPU *cpu = opaque;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -            &cpu->env, pin, level);
> +    trace_ppc_irq_set(&cpu->env, pin, level);
>  
>      switch (pin) {
>      case POWER7_INPUT_INT:
>          /* Level sensitive - active high */
> -        LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                __func__, level);
> +        trace_ppc_irq_set_state("external IRQ", level);
>          ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>          break;
>      default:
> @@ -300,24 +271,22 @@ static void power9_set_irq(void *opaque, int pin, int 
> level)
>  {
>      PowerPCCPU *cpu = opaque;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -            &cpu->env, pin, level);
> +    trace_ppc_irq_set(&cpu->env, pin, level);
>  
>      switch (pin) {
>      case POWER9_INPUT_INT:
>          /* Level sensitive - active high */
> -        LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                __func__, level);
> +        trace_ppc_irq_set_state("external IRQ", level);
>          ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>          break;
>      case POWER9_INPUT_HINT:
>          /* Level sensitive - active high */
> -        LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                __func__, level);
> +        trace_ppc_irq_set_state("HV external IRQ", level);
>          ppc_set_irq(cpu, PPC_INTERRUPT_HVIRT, level);
>          break;
>      default:
>          g_assert_not_reached();
> +        return;
>      }
>  }
>  
> @@ -393,8 +362,8 @@ static void ppc40x_set_irq(void *opaque, int pin, int 
> level)
>      CPUPPCState *env = &cpu->env;
>      int cur_level;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -                env, pin, level);
> +    trace_ppc_irq_set(env, pin, level);
> +
>      cur_level = (env->irq_input_state >> pin) & 1;
>      /* Don't generate spurious events */
>      if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
> @@ -403,51 +372,47 @@ static void ppc40x_set_irq(void *opaque, int pin, int 
> level)
>          switch (pin) {
>          case PPC40x_INPUT_RESET_SYS:
>              if (level) {
> -                LOG_IRQ("%s: reset the PowerPC system\n",
> -                            __func__);
> +                trace_ppc_irq_reset("system");
>                  ppc40x_system_reset(cpu);
>              }
>              break;
>          case PPC40x_INPUT_RESET_CHIP:
>              if (level) {
> -                LOG_IRQ("%s: reset the PowerPC chip\n", __func__);
> +                trace_ppc_irq_reset("chip");
>                  ppc40x_chip_reset(cpu);
>              }
>              break;
>          case PPC40x_INPUT_RESET_CORE:
>              /* XXX: TODO: update DBSR[MRR] */
>              if (level) {
> -                LOG_IRQ("%s: reset the PowerPC core\n", __func__);
> +                trace_ppc_irq_reset("core");
>                  ppc40x_core_reset(cpu);
>              }
>              break;
>          case PPC40x_INPUT_CINT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the critical IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("critical IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_CEXT, level);
>              break;
>          case PPC40x_INPUT_INT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the external IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("external IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>              break;
>          case PPC40x_INPUT_HALT:
>              /* Level sensitive - active low */
>              if (level) {
> -                LOG_IRQ("%s: stop the CPU\n", __func__);
> +                trace_ppc_irq_cpu("stop");
>                  cs->halted = 1;
>              } else {
> -                LOG_IRQ("%s: restart the CPU\n", __func__);
> +                trace_ppc_irq_cpu("restart");
>                  cs->halted = 0;
>                  qemu_cpu_kick(cs);
>              }
>              break;
>          case PPC40x_INPUT_DEBUG:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the debug pin state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("debug pin", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_DEBUG, level);
>              break;
>          default:
> @@ -475,41 +440,37 @@ static void ppce500_set_irq(void *opaque, int pin, int 
> level)
>      CPUPPCState *env = &cpu->env;
>      int cur_level;
>  
> -    LOG_IRQ("%s: env %p pin %d level %d\n", __func__,
> -                env, pin, level);
> +    trace_ppc_irq_set(env, pin, level);
> +
>      cur_level = (env->irq_input_state >> pin) & 1;
>      /* Don't generate spurious events */
>      if ((cur_level == 1 && level == 0) || (cur_level == 0 && level != 0)) {
>          switch (pin) {
>          case PPCE500_INPUT_MCK:
>              if (level) {
> -                LOG_IRQ("%s: reset the PowerPC system\n",
> -                            __func__);
> +                trace_ppc_irq_reset("system");
>                  qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
>              }
>              break;
>          case PPCE500_INPUT_RESET_CORE:
>              if (level) {
> -                LOG_IRQ("%s: reset the PowerPC core\n", __func__);
> +                trace_ppc_irq_reset("core");
>                  ppc_set_irq(cpu, PPC_INTERRUPT_MCK, level);
>              }
>              break;
>          case PPCE500_INPUT_CINT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the critical IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("critical IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_CEXT, level);
>              break;
>          case PPCE500_INPUT_INT:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the core IRQ state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("core IRQ", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_EXT, level);
>              break;
>          case PPCE500_INPUT_DEBUG:
>              /* Level sensitive - active high */
> -            LOG_IRQ("%s: set the debug pin state to %d\n",
> -                        __func__, level);
> +            trace_ppc_irq_set_state("debug pin", level);
>              ppc_set_irq(cpu, PPC_INTERRUPT_DEBUG, level);
>              break;
>          default:
> @@ -564,7 +525,7 @@ uint64_t cpu_ppc_load_tbl (CPUPPCState *env)
>      }
>  
>      tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 
> tb_env->tb_offset);
> -    LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
> +    trace_ppc_tb_load(tb);
>  
>      return tb;
>  }
> @@ -575,7 +536,7 @@ static inline uint32_t _cpu_ppc_load_tbu(CPUPPCState *env)
>      uint64_t tb;
>  
>      tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 
> tb_env->tb_offset);
> -    LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
> +    trace_ppc_tb_load(tb);
>  
>      return tb >> 32;
>  }
> @@ -595,8 +556,7 @@ static inline void cpu_ppc_store_tb(ppc_tb_t *tb_env, 
> uint64_t vmclk,
>      *tb_offsetp = value -
>          muldiv64(vmclk, tb_env->tb_freq, NANOSECONDS_PER_SECOND);
>  
> -    LOG_TB("%s: tb %016" PRIx64 " offset %08" PRIx64 "\n",
> -                __func__, value, *tb_offsetp);
> +    trace_ppc_tb_store(value, *tb_offsetp);
>  }
>  
>  void cpu_ppc_store_tbl (CPUPPCState *env, uint32_t value)
> @@ -632,7 +592,7 @@ uint64_t cpu_ppc_load_atbl (CPUPPCState *env)
>      uint64_t tb;
>  
>      tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 
> tb_env->atb_offset);
> -    LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
> +    trace_ppc_tb_load(tb);
>  
>      return tb;
>  }
> @@ -643,7 +603,7 @@ uint32_t cpu_ppc_load_atbu (CPUPPCState *env)
>      uint64_t tb;
>  
>      tb = cpu_ppc_get_tb(tb_env, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL), 
> tb_env->atb_offset);
> -    LOG_TB("%s: tb %016" PRIx64 "\n", __func__, tb);
> +    trace_ppc_tb_load(tb);
>  
>      return tb >> 32;
>  }
> @@ -762,7 +722,7 @@ static inline int64_t _cpu_ppc_load_decr(CPUPPCState 
> *env, uint64_t next)
>      }  else {
>          decr = -muldiv64(-diff, tb_env->decr_freq, NANOSECONDS_PER_SECOND);
>      }
> -    LOG_TB("%s: %016" PRIx64 "\n", __func__, decr);
> +    trace_ppc_decr_load(decr);
>  
>      return decr;
>  }
> @@ -821,7 +781,7 @@ uint64_t cpu_ppc_load_purr (CPUPPCState *env)
>  static inline void cpu_ppc_decr_excp(PowerPCCPU *cpu)
>  {
>      /* Raise it */
> -    LOG_TB("raise decrementer exception\n");
> +    trace_ppc_decr_excp("raise");
>      ppc_set_irq(cpu, PPC_INTERRUPT_DECR, 1);
>  }
>  
> @@ -835,7 +795,7 @@ static inline void cpu_ppc_hdecr_excp(PowerPCCPU *cpu)
>      CPUPPCState *env = &cpu->env;
>  
>      /* Raise it */
> -    LOG_TB("raise hv decrementer exception\n");
> +    trace_ppc_decr_excp("raise HV");
>  
>      /* The architecture specifies that we don't deliver HDEC
>       * interrupts in a PM state. Not only they don't cause a
> @@ -870,8 +830,7 @@ static void __cpu_ppc_store_decr(PowerPCCPU *cpu, 
> uint64_t *nextp,
>          value |= (0xFFFFFFFFULL << nr_bits);
>      }
>  
> -    LOG_TB("%s: " TARGET_FMT_lx " => " TARGET_FMT_lx "\n", __func__,
> -                decr, value);
> +    trace_ppc_decr_store(nr_bits, decr, value);
>  
>      if (kvm_enabled()) {
>          /* KVM handles decrementer exceptions, we don't need our own timer */
> @@ -1199,9 +1158,8 @@ static void cpu_4xx_fit_cb (void *opaque)
>      if ((env->spr[SPR_40x_TCR] >> 23) & 0x1) {
>          ppc_set_irq(cpu, PPC_INTERRUPT_FIT, 1);
>      }
> -    LOG_TB("%s: ir %d TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx "\n", 
> __func__,
> -           (int)((env->spr[SPR_40x_TCR] >> 23) & 0x1),
> -           env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
> +    trace_ppc4xx_fit((int)((env->spr[SPR_40x_TCR] >> 23) & 0x1),
> +                         env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
>  }
>  
>  /* Programmable interval timer */
> @@ -1215,11 +1173,10 @@ static void start_stop_pit (CPUPPCState *env, 
> ppc_tb_t *tb_env, int is_excp)
>          !((env->spr[SPR_40x_TCR] >> 26) & 0x1) ||
>          (is_excp && !((env->spr[SPR_40x_TCR] >> 22) & 0x1))) {
>          /* Stop PIT */
> -        LOG_TB("%s: stop PIT\n", __func__);
> +        trace_ppc4xx_pit_stop();
>          timer_del(tb_env->decr_timer);
>      } else {
> -        LOG_TB("%s: start PIT %016" PRIx64 "\n",
> -                    __func__, ppc40x_timer->pit_reload);
> +        trace_ppc4xx_pit_start(ppc40x_timer->pit_reload);
>          now = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
>          next = now + muldiv64(ppc40x_timer->pit_reload,
>                                NANOSECONDS_PER_SECOND, tb_env->decr_freq);
> @@ -1248,9 +1205,7 @@ static void cpu_4xx_pit_cb (void *opaque)
>          ppc_set_irq(cpu, ppc40x_timer->decr_excp, 1);
>      }
>      start_stop_pit(env, tb_env, 1);
> -    LOG_TB("%s: ar %d ir %d TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx " "
> -           "%016" PRIx64 "\n", __func__,
> -           (int)((env->spr[SPR_40x_TCR] >> 22) & 0x1),
> +    trace_ppc4xx_pit((int)((env->spr[SPR_40x_TCR] >> 22) & 0x1),
>             (int)((env->spr[SPR_40x_TCR] >> 26) & 0x1),
>             env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR],
>             ppc40x_timer->pit_reload);
> @@ -1290,8 +1245,7 @@ static void cpu_4xx_wdt_cb (void *opaque)
>      next = now + muldiv64(next, NANOSECONDS_PER_SECOND, tb_env->decr_freq);
>      if (next == now)
>          next++;
> -    LOG_TB("%s: TCR " TARGET_FMT_lx " TSR " TARGET_FMT_lx "\n", __func__,
> -           env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
> +    trace_ppc4xx_wdt(env->spr[SPR_40x_TCR], env->spr[SPR_40x_TSR]);
>      switch ((env->spr[SPR_40x_TSR] >> 30) & 0x3) {
>      case 0x0:
>      case 0x1:
> @@ -1334,7 +1288,7 @@ void store_40x_pit (CPUPPCState *env, target_ulong val)
>  
>      tb_env = env->tb_env;
>      ppc40x_timer = tb_env->opaque;
> -    LOG_TB("%s val" TARGET_FMT_lx "\n", __func__, val);
> +    trace_ppc40x_store_pit(val);
>      ppc40x_timer->pit_reload = val;
>      start_stop_pit(env, tb_env, 0);
>  }
> @@ -1349,8 +1303,7 @@ static void ppc_40x_set_tb_clk (void *opaque, uint32_t 
> freq)
>      CPUPPCState *env = opaque;
>      ppc_tb_t *tb_env = env->tb_env;
>  
> -    LOG_TB("%s set new frequency to %" PRIu32 "\n", __func__,
> -                freq);
> +    trace_ppc40x_set_tb_clk(freq);
>      tb_env->tb_freq = freq;
>      tb_env->decr_freq = freq;
>      /* XXX: we should also update all timers */
> @@ -1369,7 +1322,7 @@ clk_setup_cb ppc_40x_timers_init (CPUPPCState *env, 
> uint32_t freq,
>      tb_env->tb_freq = freq;
>      tb_env->decr_freq = freq;
>      tb_env->opaque = ppc40x_timer;
> -    LOG_TB("%s freq %" PRIu32 "\n", __func__, freq);
> +    trace_ppc40x_timers_init(freq);
>      if (ppc40x_timer != NULL) {
>          /* We use decr timer for PIT */
>          tb_env->decr_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, 
> &cpu_4xx_pit_cb, env);
> diff --git a/hw/ppc/trace-events b/hw/ppc/trace-events
> index da6e74b80dc1..3bf43fa340fe 100644
> --- a/hw/ppc/trace-events
> +++ b/hw/ppc/trace-events
> @@ -97,7 +97,27 @@ vof_claimed(uint64_t start, uint64_t end, uint64_t size) 
> "0x%"PRIx64"..0x%"PRIx6
>  
>  # ppc.c
>  ppc_tb_adjust(uint64_t offs1, uint64_t offs2, int64_t diff, int64_t seconds) 
> "adjusted from 0x%"PRIx64" to 0x%"PRIx64", diff %"PRId64" (%"PRId64"s)"
> -
> +ppc_tb_load(uint64_t tb) "tb 0x%016" PRIx64
> +ppc_tb_store(uint64_t tb, uint64_t offset) "tb 0x%016" PRIx64 " offset 
> 0x%08" PRIx64
> +
> +ppc_decr_load(uint64_t tb) "decr 0x%016" PRIx64
> +ppc_decr_excp(const char *action) "%s decrementer"
> +ppc_decr_store(uint32_t nr_bits, uint64_t decr, uint64_t value) "%d-bit 
> 0x%016" PRIx64 " => 0x%016" PRIx64
> +
> +ppc4xx_fit(uint32_t ir, uint64_t tcr, uint64_t tsr) "ir %d TCR 0x%" PRIx64 " 
> TSR 0x%" PRIx64
> +ppc4xx_pit_stop(void) ""
> +ppc4xx_pit_start(uint64_t reload) "PIT 0x%016" PRIx64
> +ppc4xx_pit(uint32_t ar, uint32_t ir, uint64_t tcr, uint64_t tsr, uint64_t 
> reload) "ar %d ir %d TCR 0x%" PRIx64 " TSR 0x%" PRIx64 " PIT 0x%016" PRIx64
> +ppc4xx_wdt(uint64_t tcr, uint64_t tsr) "TCR 0x%" PRIx64 " TSR 0x%" PRIx64
> +ppc40x_store_pit(uint64_t value) "val 0x%" PRIx64
> +ppc40x_set_tb_clk(uint32_t value) "new frequency %" PRIu32
> +ppc40x_timers_init(uint32_t value) "frequency %" PRIu32
> +
> +ppc_irq_set(void *env, uint32_t pin, uint32_t level) "env [%p] pin %d level 
> %d"
> +ppc_irq_set_exit(void *env, uint32_t n_IRQ, uint32_t level, uint32_t 
> pending, uint32_t request) "env [%p] n_IRQ %d level %d => pending 0x%08" 
> PRIx32 " req 0x%08" PRIx32
> +ppc_irq_set_state(const char *name, uint32_t level) "\"%s\" level %d"
> +ppc_irq_reset(const char *name) "%s"
> +ppc_irq_cpu(const char *action) "%s"
>  
>  # prep_systemio.c
>  prep_systemio_read(uint32_t addr, uint32_t val) "read addr=0x%x val=0x%x"

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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