diff mbox series

[v2,05/14] drm/msm/adreno: Disable has_cached_coherent for A610/A619_holi

Message ID 20230214173145.2482651-6-konrad.dybcio@linaro.org
State New
Headers
Series [v2,01/14] drm/msm/a6xx: De-staticize sptprac en/disable functions |

Commit Message

Konrad Dybcio Feb. 14, 2023, 5:31 p.m. UTC 
  These SKUs don't support the feature. Disable it to make the GPU stop
crashing after almost each and every submission - the received data on
the GPU end was simply incomplete in garbled, resulting in almost nothing
being executed properly.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/gpu/drm/msm/adreno/adreno_device.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

Comments

Dmitry Baryshkov Feb. 17, 2023, 8:54 p.m. UTC | #1 
On 14/02/2023 19:31, Konrad Dybcio wrote:
> These SKUs don't support the feature. Disable it to make the GPU stop
> crashing after almost each and every submission - the received data on
> the GPU end was simply incomplete in garbled, resulting in almost nothing
> being executed properly.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>   drivers/gpu/drm/msm/adreno/adreno_device.c | 8 +++++++-
>   1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index 36f062c7582f..82757f005a1a 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -540,7 +540,13 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
>   		config.rev.minor, config.rev.patchid);
>   
>   	priv->is_a2xx = config.rev.core == 2;
> -	priv->has_cached_coherent = config.rev.core >= 6;
> +
> +	if (config.rev.core >= 6) {
> +		/* Exclude A610 and A619_holi */
> +		if (!(adreno_cmp_rev(ADRENO_REV(6, 1, 0, ANY_ID), config.rev) ||
> +		      adreno_cmp_rev(ADRENO_REV(6, 1, 9, 1), config.rev)))
> +			priv->has_cached_coherent = true;
> +	}

I'd suggest something like:

if (config.rev.core >= 6 &&
     !(info.quirks & ADRENO_QUIRK_NO_CACHE_COHERENT))
         priv->has_cache_coherent = true;

Let's keep all the information and quirks in a single place.

>   
>   	gpu = info->init(drm);
>   	if (IS_ERR(gpu)) {
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
index 36f062c7582f..82757f005a1a 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_device.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
@@ -540,7 +540,13 @@  static int adreno_bind(struct device *dev, struct device *master, void *data)
 		config.rev.minor, config.rev.patchid);
 
 	priv->is_a2xx = config.rev.core == 2;
-	priv->has_cached_coherent = config.rev.core >= 6;
+
+	if (config.rev.core >= 6) {
+		/* Exclude A610 and A619_holi */
+		if (!(adreno_cmp_rev(ADRENO_REV(6, 1, 0, ANY_ID), config.rev) ||
+		      adreno_cmp_rev(ADRENO_REV(6, 1, 9, 1), config.rev)))
+			priv->has_cached_coherent = true;
+	}
 
 	gpu = info->init(drm);
 	if (IS_ERR(gpu)) {