[PATCH 09/12] drm/msm/adreno: Add adreno family

[Konrad Dybcio]

On 6.07.2023 23:10, Rob Clark wrote:
> From: Rob Clark <robdclark at chromium.org>
> 
> Sometimes it is useful to know the sub-generation (or "family").  And in
> any case, this helps us get away from infering the generation from the
> numerical chip-id.
> 
> Signed-off-by: Rob Clark <robdclark at chromium.org>
> ---
[...]

>  		.rev   = ADRENO_REV(5, 0, 8, ANY_ID),
> +		.family = ADRENO_5XX,
>  		.revn = 508,
508 is from 530 fam

>  		.fw = {
>  			[ADRENO_FW_PM4] = "a530_pm4.fw",
> @@ -156,6 +168,7 @@ static const struct adreno_info gpulist[] = {
>  		.zapfw = "a508_zap.mdt",
>  	}, {
>  		.rev   = ADRENO_REV(5, 0, 9, ANY_ID),
> +		.family = ADRENO_5XX,
>  		.revn = 509,
509 and 512 are from 540 fam

>  		.fw = {
>  			[ADRENO_FW_PM4] = "a530_pm4.fw",
> @@ -173,6 +186,7 @@ static const struct adreno_info gpulist[] = {
>  		.zapfw = "a512_zap.mdt",
>  	}, {
>  		.rev   = ADRENO_REV(5, 1, 0, ANY_ID),
> +		.family = ADRENO_5XX,
>  		.revn = 510,
510 is 530ish but I think it's closer to 505 or whatever the
8953 gpu was called

[...]

> -	priv->is_a2xx = config.rev.core == 2;
> +	priv->is_a2xx = info->family < ADRENO_3XX;
is this variable even needed now that there are explicit family values?

Konrad
>  	priv->has_cached_coherent =
>  		!!(info->quirks & ADRENO_QUIRK_HAS_CACHED_COHERENT);
>  
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> index 2e62a7ce9f13..75ff7fb46099 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
> @@ -1079,8 +1079,13 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
>  	u32 speedbin;
>  	int ret;
>  
> +	adreno_gpu->funcs = funcs;
> +	adreno_gpu->info = adreno_info(config->rev);
> +	adreno_gpu->rev = *rev;
> +
>  	/* Only handle the core clock when GMU is not in use (or is absent). */
> -	if (adreno_has_gmu_wrapper(adreno_gpu) || config->rev.core < 6) {
> +	if (adreno_has_gmu_wrapper(adreno_gpu) ||
> +	    adreno_gpu->info->family < ADRENO_6XX_GEN1) {
>  		/*
>  		 * This can only be done before devm_pm_opp_of_add_table(), or
>  		 * dev_pm_opp_set_config() will WARN_ON()
> @@ -1096,10 +1101,6 @@ int adreno_gpu_init(struct drm_device *drm, struct platform_device *pdev,
>  			devm_pm_opp_set_clkname(dev, "core");
>  	}
>  
> -	adreno_gpu->funcs = funcs;
> -	adreno_gpu->info = adreno_info(config->rev);
> -	adreno_gpu->rev = *rev;
> -
>  	if (adreno_read_speedbin(dev, &speedbin) || !speedbin)
>  		speedbin = 0xffff;
>  	adreno_gpu->speedbin = (uint16_t) (0xffff & speedbin);
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> index 6066cfaaea52..2fa14dcd4e40 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
> @@ -29,6 +29,25 @@ enum {
>  	ADRENO_FW_MAX,
>  };
>  
> +/**
> + * @enum adreno_family: identify generation and possibly sub-generation
> + *
> + * In some cases there are distinct sub-generations within a major revision
> + * so it helps to be able to group the GPU devices by generation and if
> + * necessary sub-generation.
> + */
> +enum adreno_family {
> +	ADRENO_2XX_GEN1,  /* a20x */
> +	ADRENO_2XX_GEN2,  /* a22x */
> +	ADRENO_3XX,
> +	ADRENO_4XX,
> +	ADRENO_5XX,
> +	ADRENO_6XX_GEN1,  /* a630 family */
> +	ADRENO_6XX_GEN2,  /* a640 family */
> +	ADRENO_6XX_GEN3,  /* a650 family */
> +	ADRENO_6XX_GEN4,  /* a660 family */
> +};
> +
>  #define ADRENO_QUIRK_TWO_PASS_USE_WFI		BIT(0)
>  #define ADRENO_QUIRK_FAULT_DETECT_MASK		BIT(1)
>  #define ADRENO_QUIRK_LMLOADKILL_DISABLE		BIT(2)
> @@ -63,6 +82,7 @@ extern const struct adreno_reglist a660_hwcg[], a690_hwcg[];
>  struct adreno_info {
>  	const char *machine;
>  	struct adreno_rev rev;
> +	enum adreno_family family;
>  	uint32_t revn;
>  	const char *fw[ADRENO_FW_MAX];
>  	uint32_t gmem;
> @@ -188,14 +208,14 @@ static inline bool adreno_is_a2xx(const struct adreno_gpu *gpu)
>  {
>  	if (WARN_ON_ONCE(!gpu->info))
>  		return false;
> -	return (gpu->info->revn < 300);
> +	return gpu->info->family < ADRENO_2XX_GEN2;
>  }
>  
>  static inline bool adreno_is_a20x(const struct adreno_gpu *gpu)
>  {
>  	if (WARN_ON_ONCE(!gpu->info))
>  		return false;
> -	return (gpu->info->revn < 210);
> +	return gpu->info->family == ADRENO_2XX_GEN1;
>  }
>  
>  static inline bool adreno_is_a225(const struct adreno_gpu *gpu)
> @@ -338,29 +358,31 @@ static inline int adreno_is_a690(const struct adreno_gpu *gpu)
>  /* check for a615, a616, a618, a619 or any a630 derivatives */
>  static inline int adreno_is_a630_family(const struct adreno_gpu *gpu)
>  {
> -	return adreno_is_revn(gpu, 630) ||
> -		adreno_is_revn(gpu, 615) ||
> -		adreno_is_revn(gpu, 616) ||
> -		adreno_is_revn(gpu, 618) ||
> -		adreno_is_revn(gpu, 619);
> +	if (WARN_ON_ONCE(!gpu->info))
> +		return false;
> +	return gpu->info->family == ADRENO_6XX_GEN1;
>  }
>  
>  static inline int adreno_is_a660_family(const struct adreno_gpu *gpu)
>  {
> -	return adreno_is_a660(gpu) || adreno_is_a690(gpu) || adreno_is_7c3(gpu);
> +	if (WARN_ON_ONCE(!gpu->info))
> +		return false;
> +	return gpu->info->family == ADRENO_6XX_GEN4;
>  }
>  
>  /* check for a650, a660, or any derivatives */
>  static inline int adreno_is_a650_family(const struct adreno_gpu *gpu)
>  {
> -	return adreno_is_revn(gpu, 650) ||
> -		adreno_is_revn(gpu, 620) ||
> -		adreno_is_a660_family(gpu);
> +	if (WARN_ON_ONCE(!gpu->info))
> +		return false;
> +	return gpu->info->family >= ADRENO_6XX_GEN3;
>  }
>  
>  static inline int adreno_is_a640_family(const struct adreno_gpu *gpu)
>  {
> -	return adreno_is_a640(gpu) || adreno_is_a680(gpu);
> +	if (WARN_ON_ONCE(!gpu->info))
> +		return false;
> +	return gpu->info->family == ADRENO_6XX_GEN2;
>  }
>  
>  u64 adreno_private_address_space_size(struct msm_gpu *gpu);