Re: [PATCH 10/12] drm/msm/adreno: Add helper for formating chip-id

[Konrad Dybcio <konrad.dybcio@linaro.org>]

On 6.07.2023 23:10, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> This is used in a few places, including one that is parsed by userspace
> tools.  So let's standardize it a bit better.
> 
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
Userspace parsed this weird string instead of the hex-based chipid?

weird^2

Konrad
>  drivers/gpu/drm/msm/adreno/adreno_device.c |  8 +++-----
>  drivers/gpu/drm/msm/adreno/adreno_gpu.c    | 19 ++++++++-----------
>  drivers/gpu/drm/msm/adreno/adreno_gpu.h    |  6 ++++++
>  3 files changed, 17 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index dcd6363ac7b0..fd2e183bce60 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -661,14 +661,12 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
>  	info = adreno_info(config.rev);
>  
>  	if (!info) {
> -		dev_warn(drm->dev, "Unknown GPU revision: %u.%u.%u.%u\n",
> -			config.rev.core, config.rev.major,
> -			config.rev.minor, config.rev.patchid);
> +		dev_warn(drm->dev, "Unknown GPU revision: %"ADRENO_CHIPID_FMT"\n",
> +			ADRENO_CHIPID_ARGS(config.rev));
>  		return -ENXIO;
>  	}
>  
> -	DBG("Found GPU: %u.%u.%u.%u", config.rev.core, config.rev.major,
> -		config.rev.minor, config.rev.patchid);
> +	DBG("Found GPU: %"ADRENO_CHIPID_FMT, ADRENO_CHIPID_ARGS(config.rev));
>  
>  	priv->is_a2xx = info->family < ADRENO_3XX;
>  	priv->has_cached_coherent =
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> index 75ff7fb46099..1a982a926f21 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> @@ -847,10 +847,9 @@ void adreno_show(struct msm_gpu *gpu, struct msm_gpu_state *state,
>  	if (IS_ERR_OR_NULL(state))
>  		return;
>  
> -	drm_printf(p, "revision: %d (%d.%d.%d.%d)\n",
> -			adreno_gpu->info->revn, adreno_gpu->rev.core,
> -			adreno_gpu->rev.major, adreno_gpu->rev.minor,
> -			adreno_gpu->rev.patchid);
> +	drm_printf(p, "revision: %u (%"ADRENO_CHIPID_FMT")\n",
> +			adreno_gpu->info->revn,
> +			ADRENO_CHIPID_ARGS(adreno_gpu->rev));
>  	/*
>  	 * If this is state collected due to iova fault, so fault related info
>  	 *
> @@ -921,10 +920,9 @@ void adreno_dump_info(struct msm_gpu *gpu)
>  	struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
>  	int i;
>  
> -	printk("revision: %d (%d.%d.%d.%d)\n",
> -			adreno_gpu->info->revn, adreno_gpu->rev.core,
> -			adreno_gpu->rev.major, adreno_gpu->rev.minor,
> -			adreno_gpu->rev.patchid);
> +	printk("revision: %u (%"ADRENO_CHIPID_FMT")\n",
> +			adreno_gpu->info->revn,
> +			ADRENO_CHIPID_ARGS(adreno_gpu->rev));
>  
>  	for (i = 0; i < gpu->nr_rings; i++) {
>  		struct msm_ringbuffer *ring = gpu->rb[i];
> @@ -1105,9 +1103,8 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
>  		speedbin = 0xffff;
>  	adreno_gpu->speedbin = (uint16_t) (0xffff & speedbin);
>  
> -	gpu_name = devm_kasprintf(dev, GFP_KERNEL, "%d.%d.%d.%d",
> -			rev->core, rev->major, rev->minor,
> -			rev->patchid);
> +	gpu_name = devm_kasprintf(dev, GFP_KERNEL, "%"ADRENO_CHIPID_FMT,
> +			ADRENO_CHIPID_ARGS(config->rev));
>  	if (!gpu_name)
>  		return -ENOMEM;
>  
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> index 2fa14dcd4e40..73e7155f164c 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> @@ -66,6 +66,12 @@ struct adreno_rev {
>  #define ADRENO_REV(core, major, minor, patchid) \
>  	((struct adreno_rev){ core, major, minor, patchid })
>  
> +/* Helper for formating the chip_id in the way that userspace tools like
> + * crashdec expect.
> + */
> +#define ADRENO_CHIPID_FMT "u.%u.%u.%u"
> +#define ADRENO_CHIPID_ARGS(_r) (_r).core, (_r).major, (_r).minor, (_r).patchid
> +
>  struct adreno_gpu_funcs {
>  	struct msm_gpu_funcs base;
>  	int (*get_timestamp)(struct msm_gpu *gpu, uint64_t *value);