Reviewed-by: Iago Toral Quiroga <itoral@xxxxxxxxxx>
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@xxxxxxxxxx>
> ---
> 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 {
