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drm: Add drm mode lease ioctl wrappers [v3] 

drmModeCreateLease
drmModeListLessees
drmModeGetLease
drmModeRevokeLease

Changes for v2:

Remove lessee id from GetLease
Remove lessor_id from ListLeases
Add revoke
Renumber to track kernel rebase on drm-next

Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
main
Keith Packard 2017-03-16 18:11:05 -07:00 committed by Dave Airlie
parent 5889f6ba1a
commit c417153538
2 changed files with 111 additions and 0 deletions
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89
xf86drmMode.c
View File

@ -1485,3 +1485,92 @@ drmModeDestroyPropertyBlob(int fd, uint32_t id)
destroy.blob_id = id; destroy.blob_id = id;
return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy); return DRM_IOCTL(fd, DRM_IOCTL_MODE_DESTROYPROPBLOB, &destroy);
} }
int
drmModeCreateLease(int fd, const uint32_t *objects, int num_objects, int flags, uint32_t *lessee_id)
{
struct drm_mode_create_lease create;
int ret;
memclear(create);
create.object_ids = (uintptr_t) objects;
create.object_count = num_objects;
create.flags = flags;
ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_CREATE_LEASE, &create);
if (ret == 0) {
*lessee_id = create.lessee_id;
return create.fd;
}
return -errno;
}
drmModeLesseeListPtr
drmModeListLessees(int fd)
{
struct drm_mode_list_lessees list;
uint32_t count;
drmModeLesseeListPtr ret;
memclear(list);
if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list))
return NULL;
count = list.count_lessees;
ret = drmMalloc(sizeof (drmModeLesseeListRes) + count * sizeof (ret->lessees[0]));
if (!ret)
return NULL;
list.lessees_ptr = VOID2U64(&ret->lessees[0]);
if (DRM_IOCTL(fd, DRM_IOCTL_MODE_LIST_LESSEES, &list)) {
drmFree(ret);
return NULL;
}
ret->count = count;
return ret;
}
drmModeObjectListPtr
drmModeGetLease(int fd)
{
struct drm_mode_get_lease get;
uint32_t count;
drmModeObjectListPtr ret;
memclear(get);
if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get))
return NULL;
count = get.count_objects;
ret = drmMalloc(sizeof (drmModeObjectListRes) + count * sizeof (ret->objects[0]));
if (!ret)
return NULL;
get.objects_ptr = VOID2U64(&ret->objects[0]);
if (DRM_IOCTL(fd, DRM_IOCTL_MODE_GET_LEASE, &get)) {
drmFree(ret);
return NULL;
}
ret->count = count;
return ret;
}
int
drmModeRevokeLease(int fd, uint32_t lessee_id)
{
struct drm_mode_revoke_lease revoke;
int ret;
memclear(revoke);
revoke.lessee_id = lessee_id;
ret = DRM_IOCTL(fd, DRM_IOCTL_MODE_REVOKE_LEASE, &revoke);
if (ret == 0)
return 0;
return -errno;
}

22
xf86drmMode.h
View File

@ -521,6 +521,28 @@ extern int drmModeCreatePropertyBlob(int fd, const void *data, size_t size,
uint32_t *id); uint32_t *id);
extern int drmModeDestroyPropertyBlob(int fd, uint32_t id); extern int drmModeDestroyPropertyBlob(int fd, uint32_t id);
/*
* DRM mode lease APIs. These create and manage new drm_masters with
* access to a subset of the available DRM resources
*/
extern int drmModeCreateLease(int fd, const uint32_t *objects, int num_objects, int flags, uint32_t *lessee_id);
typedef struct drmModeLesseeList {
uint32_t count;
uint32_t lessees[0];
} drmModeLesseeListRes, *drmModeLesseeListPtr;
extern drmModeLesseeListPtr drmModeListLessees(int fd);
typedef struct drmModeObjectList {
uint32_t count;
uint32_t objects[0];
} drmModeObjectListRes, *drmModeObjectListPtr;
extern drmModeObjectListPtr drmModeGetLease(int fd);
extern int drmModeRevokeLease(int fd, uint32_t lessee_id);
#if defined(__cplusplus) #if defined(__cplusplus)
} }