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drm/core: add ioctl to query device/driver capabilities

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We're coming to see a need to have a set of generic capability checks in
the core DRM, in addition to the driver-specific ioctls that already
exist.

This patch defines an ioctl to do as such, but does not yet define any
capabilities.

[airlied: drop the driver callback for now.]

Signed-off-by: Ben Skeggs <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
This commit is contained in:
Ben Skeggs 2011-02-21 11:17:35 +10:00 • committed by Dave Airlie
commit 9f35421e09
4 changed files with 21 additions and 0 deletions
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1
drivers/gpu/drm/drm_drv.c
View file

@ -67,6 +67,7 @@ static struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, 0),
DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),

11
drivers/gpu/drm/drm_ioctl.c
View file

@ -267,6 +267,17 @@ int drm_getstats(struct drm_device *dev, void *data,
return 0;
}
/**
* Get device/driver capabilities
*/
int drm_getcap(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
struct drm_get_cap *req = data;
req->value = 0;
return 0;
}
/**
* Setversion ioctl.
*