27  * logic_pio_register_range - register logical PIO range for a host
28  * @new_range: pointer to the IO range to be registered.
31  * If the range already exists, -EEXIST will be returned, which should be
34  * Register a new IO range node in the IO range list.
38 	struct logic_pio_hwaddr *range;  in logic_pio_register_range()  local
53 	list_for_each_entry(range, &io_range_list, list) {  in logic_pio_register_range()
54 		if (range->fwnode == new_range->fwnode) {  in logic_pio_register_range()
55 			/* range already there */  in logic_pio_register_range()
59 		if (range->flags == LOGIC_PIO_CPU_MMIO &&  in logic_pio_register_range()
62 			if (start >= range->hw_start + range->size ||  in logic_pio_register_range()
63 			    end < range->hw_start) {  in logic_pio_register_range()
64 				mmio_end = range->io_start + range->size;  in logic_pio_register_range()
69 		} else if (range->flags == LOGIC_PIO_INDIRECT &&  in logic_pio_register_range()
71 			iio_sz += range->size;  in logic_pio_register_range()
75 	/* range not registered yet, check for available space */  in logic_pio_register_range()
84 			pr_warn("Requested IO range too big, new size set to 64K\n");  in logic_pio_register_range()
107  * logic_pio_unregister_range - unregister a logical PIO range for a host
108  * @range: pointer to the IO range which has been already registered.
110  * Unregister a previously-registered IO range node.
112 void logic_pio_unregister_range(struct logic_pio_hwaddr *range)  in logic_pio_unregister_range()  argument
115 	list_del_rcu(&range->list);  in logic_pio_unregister_range()
121  * find_io_range_by_fwnode - find logical PIO range for given FW node
122  * @fwnode: FW node handle associated with logical PIO range
130 	struct logic_pio_hwaddr *range, *found_range = NULL;  in find_io_range_by_fwnode()  local
133 	list_for_each_entry_rcu(range, &io_range_list, list) {  in find_io_range_by_fwnode()
134 		if (range->fwnode == fwnode) {  in find_io_range_by_fwnode()
135 			found_range = range;  in find_io_range_by_fwnode()
144 /* Return a registered range given an input PIO token */
147 	struct logic_pio_hwaddr *range, *found_range = NULL;  in find_io_range()  local
150 	list_for_each_entry_rcu(range, &io_range_list, list) {  in find_io_range()
151 		if (in_range(pio, range->io_start, range->size)) {  in find_io_range()
152 			found_range = range;  in find_io_range()
175 	struct logic_pio_hwaddr *range;  in logic_pio_to_hwaddr()  local
177 	range = find_io_range(pio);  in logic_pio_to_hwaddr()
178 	if (range)  in logic_pio_to_hwaddr()
179 		return range->hw_start + pio - range->io_start;  in logic_pio_to_hwaddr()
195 	struct logic_pio_hwaddr *range;  in logic_pio_trans_hwaddr()  local
197 	range = find_io_range_by_fwnode(fwnode);  in logic_pio_trans_hwaddr()
198 	if (!range || range->flags == LOGIC_PIO_CPU_MMIO) {  in logic_pio_trans_hwaddr()
199 		pr_err("IO range not found or invalid\n");  in logic_pio_trans_hwaddr()
202 	if (range->size < size) {  in logic_pio_trans_hwaddr()
203 		pr_err("resource size %pa cannot fit in IO range size %pa\n",  in logic_pio_trans_hwaddr()
204 		       &size, &range->size);  in logic_pio_trans_hwaddr()
207 	return addr - range->hw_start + range->io_start;  in logic_pio_trans_hwaddr()
212 	struct logic_pio_hwaddr *range;  in logic_pio_trans_cpuaddr()  local
215 	list_for_each_entry_rcu(range, &io_range_list, list) {  in logic_pio_trans_cpuaddr()
216 		if (range->flags != LOGIC_PIO_CPU_MMIO)  in logic_pio_trans_cpuaddr()
218 		if (in_range(addr, range->hw_start, range->size)) {  in logic_pio_trans_cpuaddr()
221 			cpuaddr = addr - range->hw_start + range->io_start;  in logic_pio_trans_cpuaddr()