Unverified Commit 9f8e1c93 authored by Maíra Canal's avatar Maíra Canal
Browse files

drm/v3d: Expose Super Pages capability 



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: default avatarMaíra Canal <mcanal@igalia.com>
Reviewed-by: default avatarIago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-12-mcanal@igalia.com
parent 0df4a13c

drivers/gpu/drm/v3d/v3d_drv.c

+3 −0
Original line number Diff line number Diff line
@@ -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;

include/uapi/drm/v3d_drm.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {