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drm/v3d: Expose Super Pages capability

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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@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240923141348.2422499-12-mcanal@igalia.com
This commit is contained in:
Maíra Canal 2024-09-23 10:55:15 -03:00
parent 0df4a13ca8
commit 9f8e1c93a0
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GPG Key ID: 6E388F05AB35B7CF
2 changed files with 4 additions and 0 deletions
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3
drivers/gpu/drm/v3d/v3d_drv.c
View File

@ -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;

1
include/uapi/drm/v3d_drm.h
View File

@ -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 {