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[PATCH 1/5] drm/msm/adreno: Split up giant device table

Rob Clark posted 5 patches 2 years ago
There is a newer version of this series
[PATCH 1/5] drm/msm/adreno: Split up giant device table
Posted by Rob Clark 2 years ago 
From: Rob Clark <robdclark@chromium.org>

Split into a separate table per generation, in preparation to move each
gen's device table to it's own file.

Signed-off-by: Rob Clark <robdclark@chromium.org>
---
 drivers/gpu/drm/msm/adreno/adreno_device.c | 59 +++++++++++++++++++---
 1 file changed, 51 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 41b13dec9bef..36392801f929 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -20,7 +20,7 @@ bool allow_vram_carveout = false;
 MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
 module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
 
-static const struct adreno_info gpulist[] = {
+static const struct adreno_info a2xx_gpus[] = {
 	{
 		.chip_ids = ADRENO_CHIP_IDS(0x02000000),
 		.family = ADRENO_2XX_GEN1,
@@ -55,6 +55,12 @@ static const struct adreno_info gpulist[] = {
 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
 		.init  = a2xx_gpu_init,
 	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info a3xx_gpus[] = {
+	{
 		.chip_ids = ADRENO_CHIP_IDS(
 			0x03000512,
 			0x03000520
@@ -110,6 +116,12 @@ static const struct adreno_info gpulist[] = {
 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
 		.init  = a3xx_gpu_init,
 	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info a4xx_gpus[] = {
+	{
 		.chip_ids = ADRENO_CHIP_IDS(0x04000500),
 		.family = ADRENO_4XX,
 		.revn  = 405,
@@ -143,6 +155,12 @@ static const struct adreno_info gpulist[] = {
 		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
 		.init  = a4xx_gpu_init,
 	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info a5xx_gpus[] = {
+	{
 		.chip_ids = ADRENO_CHIP_IDS(0x05000600),
 		.family = ADRENO_5XX,
 		.revn = 506,
@@ -268,6 +286,12 @@ static const struct adreno_info gpulist[] = {
 		.init = a5xx_gpu_init,
 		.zapfw = "a540_zap.mdt",
 	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info a6xx_gpus[] = {
+	{
 		.chip_ids = ADRENO_CHIP_IDS(0x06010000),
 		.family = ADRENO_6XX_GEN1,
 		.revn = 610,
@@ -493,6 +517,12 @@ static const struct adreno_info gpulist[] = {
 		.hwcg = a690_hwcg,
 		.address_space_size = SZ_16G,
 	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info a7xx_gpus[] = {
+	{
 		.chip_ids = ADRENO_CHIP_IDS(0x07030001),
 		.family = ADRENO_7XX_GEN1,
 		.fw = {
@@ -522,7 +552,18 @@ static const struct adreno_info gpulist[] = {
 		.zapfw = "a740_zap.mdt",
 		.hwcg = a740_hwcg,
 		.address_space_size = SZ_16G,
-	},
+	}, {
+		/* sentinal */
+	}
+};
+
+static const struct adreno_info *gpulist[] = {
+	a2xx_gpus,
+	a3xx_gpus,
+	a4xx_gpus,
+	a5xx_gpus,
+	a6xx_gpus,
+	a7xx_gpus,
 };
 
 MODULE_FIRMWARE("qcom/a300_pm4.fw");
@@ -557,12 +598,14 @@ static const struct adreno_info *adreno_info(uint32_t chip_id)
 {
 	/* identify gpu: */
 	for (int i = 0; i < ARRAY_SIZE(gpulist); i++) {
-		const struct adreno_info *info = &gpulist[i];
-		if (info->machine && !of_machine_is_compatible(info->machine))
-			continue;
-		for (int j = 0; info->chip_ids[j]; j++)
-			if (info->chip_ids[j] == chip_id)
-				return info;
+		for (int j = 0; gpulist[i][j].chip_ids; j++) {
+			const struct adreno_info *info = &gpulist[i][j];
+			if (info->machine && !of_machine_is_compatible(info->machine))
+				continue;
+			for (int k = 0; info->chip_ids[k]; k++)
+				if (info->chip_ids[k] == chip_id)
+					return info;
+		}
 	}
 
 	return NULL;
-- 
2.42.0
Re: [PATCH 1/5] drm/msm/adreno: Split up giant device table
Posted by Konrad Dybcio 2 years ago 

On 12/5/23 23:03, Rob Clark wrote:
> From: Rob Clark <robdclark@chromium.org>
> 
> Split into a separate table per generation, in preparation to move each
> gen's device table to it's own file.
> 
> Signed-off-by: Rob Clark <robdclark@chromium.org>
> ---
>   drivers/gpu/drm/msm/adreno/adreno_device.c | 59 +++++++++++++++++++---
>   1 file changed, 51 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index 41b13dec9bef..36392801f929 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -20,7 +20,7 @@ bool allow_vram_carveout = false;
>   MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
>   module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
>   
> -static const struct adreno_info gpulist[] = {
> +static const struct adreno_info a2xx_gpus[] = {
>   	{
>   		.chip_ids = ADRENO_CHIP_IDS(0x02000000),
>   		.family = ADRENO_2XX_GEN1,
> @@ -55,6 +55,12 @@ static const struct adreno_info gpulist[] = {
>   		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
>   		.init  = a2xx_gpu_init,
>   	}, {
> +		/* sentinal */
sentinel?

> +	}
> +};
> +
> +static const struct adreno_info a3xx_gpus[] = {
> +	{
>   		.chip_ids = ADRENO_CHIP_IDS(
>   			0x03000512,
>   			0x03000520
> @@ -110,6 +116,12 @@ static const struct adreno_info gpulist[] = {
>   		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
>   		.init  = a3xx_gpu_init,
>   	}, {
> +		/* sentinal */
> +	}
> +};
> +
> +static const struct adreno_info a4xx_gpus[] = {
> +	{
>   		.chip_ids = ADRENO_CHIP_IDS(0x04000500),
>   		.family = ADRENO_4XX,
>   		.revn  = 405,
> @@ -143,6 +155,12 @@ static const struct adreno_info gpulist[] = {
>   		.inactive_period = DRM_MSM_INACTIVE_PERIOD,
>   		.init  = a4xx_gpu_init,
>   	}, {
> +		/* sentinal */
> +	}
> +};
> +
> +static const struct adreno_info a5xx_gpus[] = {
> +	{
>   		.chip_ids = ADRENO_CHIP_IDS(0x05000600),
>   		.family = ADRENO_5XX,
>   		.revn = 506,
> @@ -268,6 +286,12 @@ static const struct adreno_info gpulist[] = {
>   		.init = a5xx_gpu_init,
>   		.zapfw = "a540_zap.mdt",
>   	}, {
> +		/* sentinal */
> +	}
> +};
> +
> +static const struct adreno_info a6xx_gpus[] = {
> +	{
>   		.chip_ids = ADRENO_CHIP_IDS(0x06010000),
>   		.family = ADRENO_6XX_GEN1,
>   		.revn = 610,
> @@ -493,6 +517,12 @@ static const struct adreno_info gpulist[] = {
>   		.hwcg = a690_hwcg,
>   		.address_space_size = SZ_16G,
>   	}, {
> +		/* sentinal */
> +	}
> +};
> +
> +static const struct adreno_info a7xx_gpus[] = {
> +	{
>   		.chip_ids = ADRENO_CHIP_IDS(0x07030001),
>   		.family = ADRENO_7XX_GEN1,
>   		.fw = {
> @@ -522,7 +552,18 @@ static const struct adreno_info gpulist[] = {
>   		.zapfw = "a740_zap.mdt",
>   		.hwcg = a740_hwcg,
>   		.address_space_size = SZ_16G,
> -	},
> +	}, {
> +		/* sentinal */
> +	}
> +};
> +
> +static const struct adreno_info *gpulist[] = {
> +	a2xx_gpus,
> +	a3xx_gpus,
> +	a4xx_gpus,
> +	a5xx_gpus,
> +	a6xx_gpus,
> +	a7xx_gpus,
>   };
>   
>   MODULE_FIRMWARE("qcom/a300_pm4.fw");
> @@ -557,12 +598,14 @@ static const struct adreno_info *adreno_info(uint32_t chip_id)
>   {
>   	/* identify gpu: */
>   	for (int i = 0; i < ARRAY_SIZE(gpulist); i++) {
> -		const struct adreno_info *info = &gpulist[i];
> -		if (info->machine && !of_machine_is_compatible(info->machine))
> -			continue;
> -		for (int j = 0; info->chip_ids[j]; j++)
I'm not sure using sentinels here is a good idea, it adds a
whole lot of stack size. Perhaps gpulist could be a struct
of array pointers and an array of sizes?

Konrad
Re: [PATCH 1/5] drm/msm/adreno: Split up giant device table
Posted by Rob Clark 2 years ago 
On Wed, Dec 6, 2023 at 4:29 AM Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 12/5/23 23:03, Rob Clark wrote:
> > From: Rob Clark <robdclark@chromium.org>
> >
> > Split into a separate table per generation, in preparation to move each
> > gen's device table to it's own file.
> >
> > Signed-off-by: Rob Clark <robdclark@chromium.org>
> > ---
> >   drivers/gpu/drm/msm/adreno/adreno_device.c | 59 +++++++++++++++++++---
> >   1 file changed, 51 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > index 41b13dec9bef..36392801f929 100644
> > --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> > +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > @@ -20,7 +20,7 @@ bool allow_vram_carveout = false;
> >   MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
> >   module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
> >
> > -static const struct adreno_info gpulist[] = {
> > +static const struct adreno_info a2xx_gpus[] = {
> >       {
> >               .chip_ids = ADRENO_CHIP_IDS(0x02000000),
> >               .family = ADRENO_2XX_GEN1,
> > @@ -55,6 +55,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a2xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> sentinel?
>
> > +     }
> > +};
> > +
> > +static const struct adreno_info a3xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(
> >                       0x03000512,
> >                       0x03000520
> > @@ -110,6 +116,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a3xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a4xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x04000500),
> >               .family = ADRENO_4XX,
> >               .revn  = 405,
> > @@ -143,6 +155,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a4xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a5xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x05000600),
> >               .family = ADRENO_5XX,
> >               .revn = 506,
> > @@ -268,6 +286,12 @@ static const struct adreno_info gpulist[] = {
> >               .init = a5xx_gpu_init,
> >               .zapfw = "a540_zap.mdt",
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a6xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x06010000),
> >               .family = ADRENO_6XX_GEN1,
> >               .revn = 610,
> > @@ -493,6 +517,12 @@ static const struct adreno_info gpulist[] = {
> >               .hwcg = a690_hwcg,
> >               .address_space_size = SZ_16G,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a7xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x07030001),
> >               .family = ADRENO_7XX_GEN1,
> >               .fw = {
> > @@ -522,7 +552,18 @@ static const struct adreno_info gpulist[] = {
> >               .zapfw = "a740_zap.mdt",
> >               .hwcg = a740_hwcg,
> >               .address_space_size = SZ_16G,
> > -     },
> > +     }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info *gpulist[] = {
> > +     a2xx_gpus,
> > +     a3xx_gpus,
> > +     a4xx_gpus,
> > +     a5xx_gpus,
> > +     a6xx_gpus,
> > +     a7xx_gpus,
> >   };
> >
> >   MODULE_FIRMWARE("qcom/a300_pm4.fw");
> > @@ -557,12 +598,14 @@ static const struct adreno_info *adreno_info(uint32_t chip_id)
> >   {
> >       /* identify gpu: */
> >       for (int i = 0; i < ARRAY_SIZE(gpulist); i++) {
> > -             const struct adreno_info *info = &gpulist[i];
> > -             if (info->machine && !of_machine_is_compatible(info->machine))
> > -                     continue;
> > -             for (int j = 0; info->chip_ids[j]; j++)
> I'm not sure using sentinels here is a good idea, it adds a
> whole lot of stack size. Perhaps gpulist could be a struct
> of array pointers and an array of sizes?

I guess you meant text size..

But with 30 devices currently, that array would be (30 + 7) * 8 = 296
bytes.. each sentinel is ~112 bytes (and arguably we could move a bit
more out of adreno_info).  So it isn't that big of a difference.

Being able to have aNxx_info subclass adreno_effort might be a more
compelling reason to go for an array of pointers.  I'd have to see how
awkward that looks.

BR,
-R
Re: [PATCH 1/5] drm/msm/adreno: Split up giant device table
Posted by Dmitry Baryshkov 2 years ago 
On Wed, 6 Dec 2023 at 14:29, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
>
>
> On 12/5/23 23:03, Rob Clark wrote:
> > From: Rob Clark <robdclark@chromium.org>
> >
> > Split into a separate table per generation, in preparation to move each
> > gen's device table to it's own file.
> >
> > Signed-off-by: Rob Clark <robdclark@chromium.org>
> > ---
> >   drivers/gpu/drm/msm/adreno/adreno_device.c | 59 +++++++++++++++++++---
> >   1 file changed, 51 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > index 41b13dec9bef..36392801f929 100644
> > --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> > +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> > @@ -20,7 +20,7 @@ bool allow_vram_carveout = false;
> >   MODULE_PARM_DESC(allow_vram_carveout, "Allow using VRAM Carveout, in place of IOMMU");
> >   module_param_named(allow_vram_carveout, allow_vram_carveout, bool, 0600);
> >
> > -static const struct adreno_info gpulist[] = {
> > +static const struct adreno_info a2xx_gpus[] = {
> >       {
> >               .chip_ids = ADRENO_CHIP_IDS(0x02000000),
> >               .family = ADRENO_2XX_GEN1,
> > @@ -55,6 +55,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a2xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> sentinel?
>
> > +     }
> > +};
> > +
> > +static const struct adreno_info a3xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(
> >                       0x03000512,
> >                       0x03000520
> > @@ -110,6 +116,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a3xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a4xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x04000500),
> >               .family = ADRENO_4XX,
> >               .revn  = 405,
> > @@ -143,6 +155,12 @@ static const struct adreno_info gpulist[] = {
> >               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
> >               .init  = a4xx_gpu_init,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a5xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x05000600),
> >               .family = ADRENO_5XX,
> >               .revn = 506,
> > @@ -268,6 +286,12 @@ static const struct adreno_info gpulist[] = {
> >               .init = a5xx_gpu_init,
> >               .zapfw = "a540_zap.mdt",
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a6xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x06010000),
> >               .family = ADRENO_6XX_GEN1,
> >               .revn = 610,
> > @@ -493,6 +517,12 @@ static const struct adreno_info gpulist[] = {
> >               .hwcg = a690_hwcg,
> >               .address_space_size = SZ_16G,
> >       }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info a7xx_gpus[] = {
> > +     {
> >               .chip_ids = ADRENO_CHIP_IDS(0x07030001),
> >               .family = ADRENO_7XX_GEN1,
> >               .fw = {
> > @@ -522,7 +552,18 @@ static const struct adreno_info gpulist[] = {
> >               .zapfw = "a740_zap.mdt",
> >               .hwcg = a740_hwcg,
> >               .address_space_size = SZ_16G,
> > -     },
> > +     }, {
> > +             /* sentinal */
> > +     }
> > +};
> > +
> > +static const struct adreno_info *gpulist[] = {
> > +     a2xx_gpus,
> > +     a3xx_gpus,
> > +     a4xx_gpus,
> > +     a5xx_gpus,
> > +     a6xx_gpus,
> > +     a7xx_gpus,
> >   };
> >
> >   MODULE_FIRMWARE("qcom/a300_pm4.fw");
> > @@ -557,12 +598,14 @@ static const struct adreno_info *adreno_info(uint32_t chip_id)
> >   {
> >       /* identify gpu: */
> >       for (int i = 0; i < ARRAY_SIZE(gpulist); i++) {
> > -             const struct adreno_info *info = &gpulist[i];
> > -             if (info->machine && !of_machine_is_compatible(info->machine))
> > -                     continue;
> > -             for (int j = 0; info->chip_ids[j]; j++)
> I'm not sure using sentinels here is a good idea, it adds a
> whole lot of stack size. Perhaps gpulist could be a struct
> of array pointers and an array of sizes?

My 2c would be to reimplement it as a of_device_id.data and thus the
device_match_data.

-- 
With best wishes
Dmitry
Re: [PATCH 1/5] drm/msm/adreno: Split up giant device table
Posted by Dmitry Baryshkov 2 years ago 
On Wed, 6 Dec 2023 at 00:05, Rob Clark <robdclark@gmail.com> wrote:
>
> From: Rob Clark <robdclark@chromium.org>
>
> Split into a separate table per generation, in preparation to move each
> gen's device table to it's own file.
>
> Signed-off-by: Rob Clark <robdclark@chromium.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>  drivers/gpu/drm/msm/adreno/adreno_device.c | 59 +++++++++++++++++++---
>  1 file changed, 51 insertions(+), 8 deletions(-)

-- 
With best wishes
Dmitry

Patchew 2.1-devel-b67e4c2

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