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Re: [Qemu-devel] [PATCH v3 5/8] i.MX: Standardize i.MX CCM debug


From: Peter Crosthwaite
Subject: Re: [Qemu-devel] [PATCH v3 5/8] i.MX: Standardize i.MX CCM debug
Date: Sat, 24 Oct 2015 18:53:41 -0700

On Sat, Oct 24, 2015 at 1:15 PM, Jean-Christophe Dubois
<address@hidden> wrote:
> The goal is to have debug code always compiled during build.
>
> We standardize all debug output on the following format:
>
> [QOM_TYPE_NAME]reporting_function: debug message
>
> We also replace IPRINTF with qemu_log_mask(). The qemu_log_mask() output
> is following the same format as the above debug.
>

Change this to a note about how you are adding some missing
qemu_log_mask messages. Need to to at least drop ref to IPRINTF.
Otherwise:

Reviewed-by: Peter Crosthwaite <address@hidden>

> Signed-off-by: Jean-Christophe Dubois <address@hidden>
> ---
>
> Changes since v1:
>  * use HWADDR_PRIx for address formating
>  * standardize qemu_log_mask on same model.
>
> Changes since v2:
>  * None
>
>  hw/misc/imx_ccm.c | 34 ++++++++++++++++++++++------------
>  1 file changed, 22 insertions(+), 12 deletions(-)
>
> diff --git a/hw/misc/imx_ccm.c b/hw/misc/imx_ccm.c
> index 2e19dbb..4cc2bbc 100644
> --- a/hw/misc/imx_ccm.c
> +++ b/hw/misc/imx_ccm.c
> @@ -16,14 +16,18 @@
>  #define CKIH_FREQ 26000000 /* 26MHz crystal input */
>  #define CKIL_FREQ    32768 /* nominal 32khz clock */
>
> -//#define DEBUG_CCM 1
> -#ifdef DEBUG_CCM
> -#define DPRINTF(fmt, args...) \
> -do { printf("%s: " fmt , TYPE_IMX_CCM, ##args); } while (0)
> -#else
> -#define DPRINTF(fmt, args...) do {} while (0)
> +#ifndef DEBUG_IMX_CCM
> +#define DEBUG_IMX_CCM 0
>  #endif
>
> +#define DPRINTF(fmt, args...) \
> +    do { \
> +        if (DEBUG_IMX_CCM) { \
> +            fprintf(stderr, "[%s]%s: " fmt , TYPE_IMX_CCM, \
> +                                             __func__, ##args); \
> +        } \
> +    } while (0)
> +
>  static int imx_ccm_post_load(void *opaque, int version_id);
>
>  static const VMStateDescription vmstate_imx_ccm = {
> @@ -109,7 +113,7 @@ static void update_clocks(IMXCCMState *s)
>      s->hsp_clk_freq = s->mcu_clk_freq / (1 + EXTRACT(s->pdr0, HSP));
>      s->ipg_clk_freq = s->hsp_clk_freq / (1 + EXTRACT(s->pdr0, IPG));
>
> -    DPRINTF("%s: mcu %uMHz, HSP %uMHz, IPG %uHz\n", __func__,
> +    DPRINTF("mcu %uMHz, HSP %uMHz, IPG %uHz\n",
>              s->mcu_clk_freq / 1000000,
>              s->hsp_clk_freq / 1000000,
>              s->ipg_clk_freq);
> @@ -135,7 +139,8 @@ static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
>  {
>      IMXCCMState *s = (IMXCCMState *)opaque;
>
> -    DPRINTF("%s(offset=%x)", __func__, offset >> 2);
> +    DPRINTF("(offset=0x%" HWADDR_PRIx ")\n", offset);
> +
>      switch (offset >> 2) {
>      case 0: /* CCMR */
>          DPRINTF(" ccmr = 0x%x\n", s->ccmr);
> @@ -166,9 +171,11 @@ static uint64_t imx_ccm_read(void *opaque, hwaddr offset,
>      case 23:
>          DPRINTF(" pcmr0 = 0x%x\n", s->pmcr0);
>          return s->pmcr0;
> +    default:
> +        qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
> +                      HWADDR_PRIx "\n", TYPE_IMX_CCM, __func__, offset);
> +        return 0;
>      }
> -    DPRINTF(" return 0\n");
> -    return 0;
>  }
>
>  static void imx_ccm_write(void *opaque, hwaddr offset,
> @@ -176,8 +183,9 @@ static void imx_ccm_write(void *opaque, hwaddr offset,
>  {
>      IMXCCMState *s = (IMXCCMState *)opaque;
>
> -    DPRINTF("%s(offset=%x, value = %x)\n", __func__,
> -            offset >> 2, (unsigned int)value);
> +    DPRINTF("(offset=0x%" HWADDR_PRIx ", value = 0x%x)\n",
> +            offset, (unsigned int)value);
> +
>      switch (offset >> 2) {
>      case 0:
>          s->ccmr = CCMR_FPMF | (value & 0x3b6fdfff);
> @@ -205,6 +213,8 @@ static void imx_ccm_write(void *opaque, hwaddr offset,
>          return;
>
>      default:
> +        qemu_log_mask(LOG_GUEST_ERROR, "[%s]%s: Bad register at offset 0x%"
> +                      HWADDR_PRIx "\n", TYPE_IMX_CCM, __func__, offset);
>          return;
>      }
>      update_clocks(s);
> --
> 2.5.0
>



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