[PATCH v6 11/11] drm/v3d: Expose Super Pages capability

[Maíra Canal]

Hi Iago,

On 9/24/24 02:30, Iago Toral wrote:
> Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>

I just applied to misc/kernel.git (drm-misc-next).

Thank you and Tvrtko for all the help during the reviewing process!

Best Regards,
- Maíra

> 
> El lun, 23-09-2024 a las 10:55 -0300, Maíra Canal escribió:
>> Add a new V3D parameter to expose the support of Super Pages to
>> userspace. The userspace might want to know this information to
>> apply optimizations that are specific to kernels with Super Pages
>> enabled.
>>
>> Signed-off-by: Maíra Canal <mcanal at igalia.com>
>> ---
>>   drivers/gpu/drm/v3d/v3d_drv.c | 3 +++
>>   include/uapi/drm/v3d_drm.h    | 1 +
>>   2 files changed, 4 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/v3d/v3d_drv.c
>> b/drivers/gpu/drm/v3d/v3d_drv.c
>> index 8be8c6dd9b35..fb35c5c3f1a7 100644
>> --- a/drivers/gpu/drm/v3d/v3d_drv.c
>> +++ b/drivers/gpu/drm/v3d/v3d_drv.c
>> @@ -104,6 +104,9 @@ static int v3d_get_param_ioctl(struct drm_device
>> *dev, void *data,
>>   	case DRM_V3D_PARAM_MAX_PERF_COUNTERS:
>>   		args->value = v3d->perfmon_info.max_counters;
>>   		return 0;
>> +	case DRM_V3D_PARAM_SUPPORTS_SUPER_PAGES:
>> +		args->value = !!v3d->gemfs;
>> +		return 0;
>>   	default:
>>   		DRM_DEBUG("Unknown parameter %d\n", args->param);
>>   		return -EINVAL;
>> diff --git a/include/uapi/drm/v3d_drm.h b/include/uapi/drm/v3d_drm.h
>> index 87fc5bb0a61e..2376c73abca1 100644
>> --- a/include/uapi/drm/v3d_drm.h
>> +++ b/include/uapi/drm/v3d_drm.h
>> @@ -290,6 +290,7 @@ enum drm_v3d_param {
>>   	DRM_V3D_PARAM_SUPPORTS_MULTISYNC_EXT,
>>   	DRM_V3D_PARAM_SUPPORTS_CPU_QUEUE,
>>   	DRM_V3D_PARAM_MAX_PERF_COUNTERS,
>> +	DRM_V3D_PARAM_SUPPORTS_SUPER_PAGES,
>>   };
>>   
>>   struct drm_v3d_get_param {
>