linux-kernel - Re: [PATCH] coresight: ETM: Add support for ARM Cortex-A73

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Date:   Mon, 30 Oct 2017 10:25:05 -0600
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Suzuki K Poulose <suzuki.poulose@....com>
Cc:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] coresight: ETM: Add support for ARM Cortex-A73

On 19 October 2017 at 09:45, Suzuki K Poulose <suzuki.poulose@....com> wrote:
> Add ARM Cortex A-73 ETM PIDs to the known ETM ips. While at it
> also add description of the CPU to which the ETM belongs, to make
> it easier to identify the ETM devices.
>
> Cc: Mathieu Poirier <mathieu.poirier@...aro.org>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@....com>
> ---
>  drivers/hwtracing/coresight/coresight-etm4x.c | 24 +++++++++++++++---------
>  1 file changed, 15 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
> index cf364a514c12..e84d80b008fc 100644
> --- a/drivers/hwtracing/coresight/coresight-etm4x.c
> +++ b/drivers/hwtracing/coresight/coresight-etm4x.c
> @@ -1034,7 +1034,8 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
>         }
>
>         pm_runtime_put(&adev->dev);
> -       dev_info(dev, "%s initialized\n", (char *)id->data);
> +       dev_info(dev, "CPU%d: %s initialized\n",
> +                       drvdata->cpu, (char *)id->data);
>
>         if (boot_enable) {
>                 coresight_enable(drvdata->csdev);
> @@ -1053,20 +1054,25 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
>  }
>
>  static const struct amba_id etm4_ids[] = {
> -       {       /* ETM 4.0 - Cortex-A53  */
> +       {
>                 .id     = 0x000bb95d,
>                 .mask   = 0x000fffff,
> -               .data   = "ETM 4.0",
> +               .data   = "Cortex-A53 ETM v4.0",
>         },
> -       {       /* ETM 4.0 - Cortex-A57 */
> +       {
>                 .id     = 0x000bb95e,
>                 .mask   = 0x000fffff,
> -               .data   = "ETM 4.0",
> +               .data   = "Cortex-A57 ETM v4.0",
>         },
> -       {       /* ETM 4.0 - A72, Maia, HiSilicon */
> -               .id = 0x000bb95a,
> -               .mask = 0x000fffff,
> -               .data = "ETM 4.0",
> +       {
> +               .id     = 0x000bb95a,
> +               .mask   = 0x000fffff,
> +               .data   = "Cortex-A72 ETM v4.0",
> +       },
> +       {
> +               .id     = 0x000bb959,
> +               .mask   = 0x000fffff,
> +               .data   = "Cortex-A73 ETM v4.0",
>         },
>         { 0, 0},
>  };

Applied, thanks for fixing that.

Mathieu

> --
> 2.13.6
>