C++ (Cpp) uvm_obj_init Examples

Example #1

File: vfs_vnode.c Project: RyanLucchese/rumpkernel-netbsd-src

/*
 * Allocate a new, uninitialized vnode.  If 'mp' is non-NULL, this is a
 * marker vnode.
 */
vnode_t *
vnalloc(struct mount *mp)
{
	vnode_t *vp;

	vp = pool_cache_get(vnode_cache, PR_WAITOK);
	KASSERT(vp != NULL);

	memset(vp, 0, sizeof(*vp));
	uvm_obj_init(&vp->v_uobj, &uvm_vnodeops, true, 0);
	cv_init(&vp->v_cv, "vnode");
	/*
	 * Done by memset() above.
	 *	LIST_INIT(&vp->v_nclist);
	 *	LIST_INIT(&vp->v_dnclist);
	 */

	if (mp != NULL) {
		vp->v_mount = mp;
		vp->v_type = VBAD;
		vp->v_iflag = VI_MARKER;
	} else {
		rw_init(&vp->v_lock);
	}

	return vp;
}

Example #2

File: uvm_loan.c Project: ryo/netbsd-src

void
uvm_loan_init(void)
{

	mutex_init(&uvm_loanzero_lock, MUTEX_DEFAULT, IPL_NONE);
	uvm_obj_init(&uvm_loanzero_object, &ulz_pager, false, 0);
	uvm_obj_setlock(&uvm_loanzero_object, &uvm_loanzero_lock);

	UVMHIST_INIT(loanhist, 300);
}

Example #3

File: vfs_vnode.c Project: ryo/netbsd-src

/*
 * Allocate a new marker vnode.
 */
vnode_t *
vnalloc_marker(struct mount *mp)
{
	vnode_impl_t *node;
	vnode_t *vp;

	node = pool_cache_get(vcache.pool, PR_WAITOK);
	memset(node, 0, sizeof(*node));
	vp = VIMPL_TO_VNODE(node);
	uvm_obj_init(&vp->v_uobj, &uvm_vnodeops, true, 0);
	vp->v_mount = mp;
	vp->v_type = VBAD;
	node->vi_state = VS_MARKER;

	return vp;
}

Example #4

File: drm_gem.c Project: eyberg/rumpkernel-netbsd-src

/**
 * Initialize an already allocated GEM object of the specified size with
 * no GEM provided backing store. Instead the caller is responsible for
 * backing the object and handling it.
 */
int drm_gem_private_object_init(struct drm_device *dev,
			struct drm_gem_object *obj, size_t size)
{
	BUG_ON((size & (PAGE_SIZE - 1)) != 0);

	obj->dev = dev;
#ifdef __NetBSD__
	obj->gemo_shm_uao = NULL;
	KASSERT(drm_core_check_feature(dev, DRIVER_GEM));
	KASSERT(dev->driver->gem_uvm_ops != NULL);
	uvm_obj_init(&obj->gemo_uvmobj, dev->driver->gem_uvm_ops, true, 1);
#else
	obj->filp = NULL;
#endif

	kref_init(&obj->refcount);
	atomic_set(&obj->handle_count, 0);
	obj->size = size;

	return 0;
}

Example #5

File: drm_gem.c Project: eyberg/rumpkernel-netbsd-src

/**
 * Initialize an already allocated GEM object of the specified size with
 * shmfs backing store.
 */
int drm_gem_object_init(struct drm_device *dev,
			struct drm_gem_object *obj, size_t size)
{
	BUG_ON((size & (PAGE_SIZE - 1)) != 0);

	obj->dev = dev;
#ifdef __NetBSD__
	obj->gemo_shm_uao = uao_create(size, 0);
	KASSERT(drm_core_check_feature(dev, DRIVER_GEM));
	KASSERT(dev->driver->gem_uvm_ops != NULL);
	uvm_obj_init(&obj->gemo_uvmobj, dev->driver->gem_uvm_ops, true, 1);
#else
	obj->filp = shmem_file_setup("drm mm object", size, VM_NORESERVE);
	if (IS_ERR(obj->filp))
		return PTR_ERR(obj->filp);
#endif

	kref_init(&obj->refcount);
	atomic_set(&obj->handle_count, 0);
	obj->size = size;

	return 0;
}