blob: b0e1c6702c7101532f5e8fb369c82d3cffbc8f29 [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001// SPDX-License-Identifier: GPL-2.0
Thierry Redingf4a18312013-01-22 22:24:46 +01002#include <linux/err.h>
Al Viro5ea81762007-02-11 15:41:31 +00003#include <linux/pci.h>
4#include <linux/io.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +09005#include <linux/gfp.h>
Paul Gortmaker8bc3bcc2011-11-16 21:29:17 -05006#include <linux/export.h>
Benjamin Herrenschmidtd5e83822018-06-05 13:21:26 +10007#include <linux/of_address.h>
Al Viro5ea81762007-02-11 15:41:31 +00008
Yisheng Xie1b723412018-01-29 19:48:16 +08009enum devm_ioremap_type {
10 DEVM_IOREMAP = 0,
Tuowen Zhaoe537654b2019-10-16 15:06:28 -060011 DEVM_IOREMAP_UC,
Yisheng Xie1b723412018-01-29 19:48:16 +080012 DEVM_IOREMAP_WC,
Hector Martin7c566bb5e2021-02-11 21:35:46 +090013 DEVM_IOREMAP_NP,
Yisheng Xie1b723412018-01-29 19:48:16 +080014};
15
Emil Medveb41e5ff2008-05-03 06:34:04 +100016void devm_ioremap_release(struct device *dev, void *res)
Al Viro5ea81762007-02-11 15:41:31 +000017{
18 iounmap(*(void __iomem **)res);
19}
20
21static int devm_ioremap_match(struct device *dev, void *res, void *match_data)
22{
23 return *(void **)res == match_data;
24}
25
Yisheng Xie1b723412018-01-29 19:48:16 +080026static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,
27 resource_size_t size,
28 enum devm_ioremap_type type)
29{
30 void __iomem **ptr, *addr = NULL;
31
32 ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL);
33 if (!ptr)
34 return NULL;
35
36 switch (type) {
37 case DEVM_IOREMAP:
38 addr = ioremap(offset, size);
39 break;
Tuowen Zhaoe537654b2019-10-16 15:06:28 -060040 case DEVM_IOREMAP_UC:
41 addr = ioremap_uc(offset, size);
42 break;
Yisheng Xie1b723412018-01-29 19:48:16 +080043 case DEVM_IOREMAP_WC:
44 addr = ioremap_wc(offset, size);
45 break;
Hector Martin7c566bb5e2021-02-11 21:35:46 +090046 case DEVM_IOREMAP_NP:
47 addr = ioremap_np(offset, size);
48 break;
Yisheng Xie1b723412018-01-29 19:48:16 +080049 }
50
51 if (addr) {
52 *ptr = addr;
53 devres_add(dev, ptr);
54 } else
55 devres_free(ptr);
56
57 return addr;
58}
59
Al Viro5ea81762007-02-11 15:41:31 +000060/**
61 * devm_ioremap - Managed ioremap()
62 * @dev: Generic device to remap IO address for
Lorenzo Pieralisi65247542017-04-19 17:48:54 +010063 * @offset: Resource address to map
Al Viro5ea81762007-02-11 15:41:31 +000064 * @size: Size of map
65 *
66 * Managed ioremap(). Map is automatically unmapped on driver detach.
67 */
Kumar Gala4f452e82008-04-29 10:25:48 -050068void __iomem *devm_ioremap(struct device *dev, resource_size_t offset,
Cristian Stoica5559b7b2014-10-07 18:25:43 +030069 resource_size_t size)
Al Viro5ea81762007-02-11 15:41:31 +000070{
Yisheng Xie1b723412018-01-29 19:48:16 +080071 return __devm_ioremap(dev, offset, size, DEVM_IOREMAP);
Al Viro5ea81762007-02-11 15:41:31 +000072}
73EXPORT_SYMBOL(devm_ioremap);
74
75/**
Tuowen Zhaoe537654b2019-10-16 15:06:28 -060076 * devm_ioremap_uc - Managed ioremap_uc()
77 * @dev: Generic device to remap IO address for
78 * @offset: Resource address to map
79 * @size: Size of map
80 *
81 * Managed ioremap_uc(). Map is automatically unmapped on driver detach.
82 */
83void __iomem *devm_ioremap_uc(struct device *dev, resource_size_t offset,
84 resource_size_t size)
85{
86 return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_UC);
87}
88EXPORT_SYMBOL_GPL(devm_ioremap_uc);
89
90/**
Abhilash Kesavan34644522015-02-06 19:15:27 +053091 * devm_ioremap_wc - Managed ioremap_wc()
92 * @dev: Generic device to remap IO address for
Lorenzo Pieralisi65247542017-04-19 17:48:54 +010093 * @offset: Resource address to map
Abhilash Kesavan34644522015-02-06 19:15:27 +053094 * @size: Size of map
95 *
96 * Managed ioremap_wc(). Map is automatically unmapped on driver detach.
97 */
98void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,
99 resource_size_t size)
100{
Yisheng Xie1b723412018-01-29 19:48:16 +0800101 return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_WC);
Abhilash Kesavan34644522015-02-06 19:15:27 +0530102}
103EXPORT_SYMBOL(devm_ioremap_wc);
104
105/**
Hector Martin7c566bb5e2021-02-11 21:35:46 +0900106 * devm_ioremap_np - Managed ioremap_np()
107 * @dev: Generic device to remap IO address for
108 * @offset: Resource address to map
109 * @size: Size of map
110 *
111 * Managed ioremap_np(). Map is automatically unmapped on driver detach.
112 */
113void __iomem *devm_ioremap_np(struct device *dev, resource_size_t offset,
114 resource_size_t size)
115{
116 return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_NP);
117}
118EXPORT_SYMBOL(devm_ioremap_np);
119
120/**
Al Viro5ea81762007-02-11 15:41:31 +0000121 * devm_iounmap - Managed iounmap()
122 * @dev: Generic device to unmap for
123 * @addr: Address to unmap
124 *
125 * Managed iounmap(). @addr must have been mapped using devm_ioremap*().
126 */
127void devm_iounmap(struct device *dev, void __iomem *addr)
128{
Al Viro5ea81762007-02-11 15:41:31 +0000129 WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
Steven Rostedtb104d6a2014-04-03 14:49:07 -0700130 (__force void *)addr));
Maxin B Johnae891a12011-07-25 17:12:59 -0700131 iounmap(addr);
Al Viro5ea81762007-02-11 15:41:31 +0000132}
133EXPORT_SYMBOL(devm_iounmap);
134
Bartosz Golaszewski6e924822019-10-22 10:43:12 +0200135static void __iomem *
136__devm_ioremap_resource(struct device *dev, const struct resource *res,
137 enum devm_ioremap_type type)
138{
139 resource_size_t size;
140 void __iomem *dest_ptr;
Vladimir Oltean35bd8c02020-06-01 12:58:26 +0300141 char *pretty_name;
Bartosz Golaszewski6e924822019-10-22 10:43:12 +0200142
143 BUG_ON(!dev);
144
145 if (!res || resource_type(res) != IORESOURCE_MEM) {
146 dev_err(dev, "invalid resource\n");
147 return IOMEM_ERR_PTR(-EINVAL);
148 }
149
Hector Martin7c566bb5e2021-02-11 21:35:46 +0900150 if (type == DEVM_IOREMAP && res->flags & IORESOURCE_MEM_NONPOSTED)
151 type = DEVM_IOREMAP_NP;
152
Bartosz Golaszewski6e924822019-10-22 10:43:12 +0200153 size = resource_size(res);
154
Vladimir Oltean35bd8c02020-06-01 12:58:26 +0300155 if (res->name)
156 pretty_name = devm_kasprintf(dev, GFP_KERNEL, "%s %s",
157 dev_name(dev), res->name);
158 else
159 pretty_name = devm_kstrdup(dev, dev_name(dev), GFP_KERNEL);
Zhen Lei5c3e2412021-04-28 14:32:03 +0800160 if (!pretty_name) {
161 dev_err(dev, "can't generate pretty name for resource %pR\n", res);
Vladimir Oltean35bd8c02020-06-01 12:58:26 +0300162 return IOMEM_ERR_PTR(-ENOMEM);
Zhen Lei5c3e2412021-04-28 14:32:03 +0800163 }
Vladimir Oltean35bd8c02020-06-01 12:58:26 +0300164
165 if (!devm_request_mem_region(dev, res->start, size, pretty_name)) {
Bartosz Golaszewski6e924822019-10-22 10:43:12 +0200166 dev_err(dev, "can't request region for resource %pR\n", res);
167 return IOMEM_ERR_PTR(-EBUSY);
168 }
169
170 dest_ptr = __devm_ioremap(dev, res->start, size, type);
171 if (!dest_ptr) {
172 dev_err(dev, "ioremap failed for resource %pR\n", res);
173 devm_release_mem_region(dev, res->start, size);
174 dest_ptr = IOMEM_ERR_PTR(-ENOMEM);
175 }
176
177 return dest_ptr;
178}
179
Wolfram Sang72f8c0b2011-10-25 15:16:47 +0200180/**
Thierry Reding75096572013-01-21 11:08:54 +0100181 * devm_ioremap_resource() - check, request region, and ioremap resource
182 * @dev: generic device to handle the resource for
183 * @res: resource to be handled
184 *
Dan Williams92b19ff2015-08-10 23:07:06 -0400185 * Checks that a resource is a valid memory region, requests the memory
186 * region and ioremaps it. All operations are managed and will be undone
187 * on driver detach.
Thierry Reding75096572013-01-21 11:08:54 +0100188 *
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700189 * Usage example:
Thierry Reding75096572013-01-21 11:08:54 +0100190 *
191 * res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
192 * base = devm_ioremap_resource(&pdev->dev, res);
193 * if (IS_ERR(base))
194 * return PTR_ERR(base);
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700195 *
196 * Return: a pointer to the remapped memory or an ERR_PTR() encoded error code
197 * on failure.
Thierry Reding75096572013-01-21 11:08:54 +0100198 */
Arnd Bergmanneef778c2019-07-04 15:14:45 -0700199void __iomem *devm_ioremap_resource(struct device *dev,
200 const struct resource *res)
Thierry Reding75096572013-01-21 11:08:54 +0100201{
Bartosz Golaszewski6e924822019-10-22 10:43:12 +0200202 return __devm_ioremap_resource(dev, res, DEVM_IOREMAP);
Thierry Reding75096572013-01-21 11:08:54 +0100203}
204EXPORT_SYMBOL(devm_ioremap_resource);
205
Bartosz Golaszewskib873af62019-10-22 10:43:13 +0200206/**
207 * devm_ioremap_resource_wc() - write-combined variant of
208 * devm_ioremap_resource()
209 * @dev: generic device to handle the resource for
210 * @res: resource to be handled
211 *
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700212 * Return: a pointer to the remapped memory or an ERR_PTR() encoded error code
213 * on failure.
Bartosz Golaszewskib873af62019-10-22 10:43:13 +0200214 */
215void __iomem *devm_ioremap_resource_wc(struct device *dev,
216 const struct resource *res)
217{
218 return __devm_ioremap_resource(dev, res, DEVM_IOREMAP_WC);
219}
220
Benjamin Herrenschmidtd5e83822018-06-05 13:21:26 +1000221/*
222 * devm_of_iomap - Requests a resource and maps the memory mapped IO
223 * for a given device_node managed by a given device
224 *
225 * Checks that a resource is a valid memory region, requests the memory
226 * region and ioremaps it. All operations are managed and will be undone
227 * on driver detach of the device.
228 *
229 * This is to be used when a device requests/maps resources described
230 * by other device tree nodes (children or otherwise).
231 *
232 * @dev: The device "managing" the resource
233 * @node: The device-tree node where the resource resides
234 * @index: index of the MMIO range in the "reg" property
235 * @size: Returns the size of the resource (pass NULL if not needed)
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700236 *
237 * Usage example:
Benjamin Herrenschmidtd5e83822018-06-05 13:21:26 +1000238 *
239 * base = devm_of_iomap(&pdev->dev, node, 0, NULL);
240 * if (IS_ERR(base))
241 * return PTR_ERR(base);
Dan Carpenter7ae731a2020-06-09 13:46:42 +0300242 *
243 * Please Note: This is not a one-to-one replacement for of_iomap() because the
244 * of_iomap() function does not track whether the region is already mapped. If
245 * two drivers try to map the same memory, the of_iomap() function will succeed
Randy Dunlap28d9fdf2020-08-22 21:04:43 -0700246 * but the devm_of_iomap() function will return -EBUSY.
Dan Carpenter7ae731a2020-06-09 13:46:42 +0300247 *
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700248 * Return: a pointer to the requested and mapped memory or an ERR_PTR() encoded
249 * error code on failure.
Benjamin Herrenschmidtd5e83822018-06-05 13:21:26 +1000250 */
251void __iomem *devm_of_iomap(struct device *dev, struct device_node *node, int index,
252 resource_size_t *size)
253{
254 struct resource res;
255
256 if (of_address_to_resource(node, index, &res))
257 return IOMEM_ERR_PTR(-EINVAL);
258 if (size)
259 *size = resource_size(&res);
260 return devm_ioremap_resource(dev, &res);
261}
262EXPORT_SYMBOL(devm_of_iomap);
263
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700264#ifdef CONFIG_HAS_IOPORT_MAP
Al Viro5ea81762007-02-11 15:41:31 +0000265/*
266 * Generic iomap devres
267 */
268static void devm_ioport_map_release(struct device *dev, void *res)
269{
270 ioport_unmap(*(void __iomem **)res);
271}
272
273static int devm_ioport_map_match(struct device *dev, void *res,
274 void *match_data)
275{
276 return *(void **)res == match_data;
277}
278
279/**
280 * devm_ioport_map - Managed ioport_map()
281 * @dev: Generic device to map ioport for
282 * @port: Port to map
283 * @nr: Number of ports to map
284 *
285 * Managed ioport_map(). Map is automatically unmapped on driver
286 * detach.
Stephen Boyd0c7a6b92020-09-09 23:04:40 -0700287 *
288 * Return: a pointer to the remapped memory or NULL on failure.
Al Viro5ea81762007-02-11 15:41:31 +0000289 */
Fabian Frederick5cbb00c2014-05-23 22:30:50 +0200290void __iomem *devm_ioport_map(struct device *dev, unsigned long port,
Al Viro5ea81762007-02-11 15:41:31 +0000291 unsigned int nr)
292{
293 void __iomem **ptr, *addr;
294
295 ptr = devres_alloc(devm_ioport_map_release, sizeof(*ptr), GFP_KERNEL);
296 if (!ptr)
297 return NULL;
298
299 addr = ioport_map(port, nr);
300 if (addr) {
301 *ptr = addr;
302 devres_add(dev, ptr);
303 } else
304 devres_free(ptr);
305
306 return addr;
307}
308EXPORT_SYMBOL(devm_ioport_map);
309
310/**
311 * devm_ioport_unmap - Managed ioport_unmap()
312 * @dev: Generic device to unmap for
313 * @addr: Address to unmap
314 *
315 * Managed ioport_unmap(). @addr must have been mapped using
316 * devm_ioport_map().
317 */
318void devm_ioport_unmap(struct device *dev, void __iomem *addr)
319{
320 ioport_unmap(addr);
321 WARN_ON(devres_destroy(dev, devm_ioport_map_release,
Steven Rostedtb104d6a2014-04-03 14:49:07 -0700322 devm_ioport_map_match, (__force void *)addr));
Al Viro5ea81762007-02-11 15:41:31 +0000323}
324EXPORT_SYMBOL(devm_ioport_unmap);
Uwe Kleine-Königce816fa2014-04-07 15:39:19 -0700325#endif /* CONFIG_HAS_IOPORT_MAP */
Al Viro5ea81762007-02-11 15:41:31 +0000326
327#ifdef CONFIG_PCI
328/*
329 * PCI iomap devres
330 */
Denis Efremovc9c13ba2019-09-28 02:43:08 +0300331#define PCIM_IOMAP_MAX PCI_STD_NUM_BARS
Al Viro5ea81762007-02-11 15:41:31 +0000332
333struct pcim_iomap_devres {
334 void __iomem *table[PCIM_IOMAP_MAX];
335};
336
337static void pcim_iomap_release(struct device *gendev, void *res)
338{
Geliang Tang20af74e2015-12-27 18:46:05 +0800339 struct pci_dev *dev = to_pci_dev(gendev);
Al Viro5ea81762007-02-11 15:41:31 +0000340 struct pcim_iomap_devres *this = res;
341 int i;
342
343 for (i = 0; i < PCIM_IOMAP_MAX; i++)
344 if (this->table[i])
345 pci_iounmap(dev, this->table[i]);
346}
347
348/**
349 * pcim_iomap_table - access iomap allocation table
350 * @pdev: PCI device to access iomap table for
351 *
352 * Access iomap allocation table for @dev. If iomap table doesn't
353 * exist and @pdev is managed, it will be allocated. All iomaps
354 * recorded in the iomap table are automatically unmapped on driver
355 * detach.
356 *
357 * This function might sleep when the table is first allocated but can
Zhen Lei9dbbc3b2021-07-07 18:07:31 -0700358 * be safely called without context and guaranteed to succeed once
Al Viro5ea81762007-02-11 15:41:31 +0000359 * allocated.
360 */
Fabian Frederick5cbb00c2014-05-23 22:30:50 +0200361void __iomem * const *pcim_iomap_table(struct pci_dev *pdev)
Al Viro5ea81762007-02-11 15:41:31 +0000362{
363 struct pcim_iomap_devres *dr, *new_dr;
364
365 dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);
366 if (dr)
367 return dr->table;
368
369 new_dr = devres_alloc(pcim_iomap_release, sizeof(*new_dr), GFP_KERNEL);
370 if (!new_dr)
371 return NULL;
372 dr = devres_get(&pdev->dev, new_dr, NULL, NULL);
373 return dr->table;
374}
375EXPORT_SYMBOL(pcim_iomap_table);
376
377/**
378 * pcim_iomap - Managed pcim_iomap()
379 * @pdev: PCI device to iomap for
380 * @bar: BAR to iomap
381 * @maxlen: Maximum length of iomap
382 *
383 * Managed pci_iomap(). Map is automatically unmapped on driver
384 * detach.
385 */
Fabian Frederick5cbb00c2014-05-23 22:30:50 +0200386void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
Al Viro5ea81762007-02-11 15:41:31 +0000387{
388 void __iomem **tbl;
389
390 BUG_ON(bar >= PCIM_IOMAP_MAX);
391
392 tbl = (void __iomem **)pcim_iomap_table(pdev);
393 if (!tbl || tbl[bar]) /* duplicate mappings not allowed */
394 return NULL;
395
396 tbl[bar] = pci_iomap(pdev, bar, maxlen);
397 return tbl[bar];
398}
399EXPORT_SYMBOL(pcim_iomap);
400
401/**
402 * pcim_iounmap - Managed pci_iounmap()
403 * @pdev: PCI device to iounmap for
404 * @addr: Address to unmap
405 *
406 * Managed pci_iounmap(). @addr must have been mapped using pcim_iomap().
407 */
408void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr)
409{
410 void __iomem **tbl;
411 int i;
412
413 pci_iounmap(pdev, addr);
414
415 tbl = (void __iomem **)pcim_iomap_table(pdev);
416 BUG_ON(!tbl);
417
418 for (i = 0; i < PCIM_IOMAP_MAX; i++)
419 if (tbl[i] == addr) {
420 tbl[i] = NULL;
421 return;
422 }
423 WARN_ON(1);
424}
425EXPORT_SYMBOL(pcim_iounmap);
426
427/**
428 * pcim_iomap_regions - Request and iomap PCI BARs
429 * @pdev: PCI device to map IO resources for
430 * @mask: Mask of BARs to request and iomap
431 * @name: Name used when requesting regions
432 *
433 * Request and iomap regions specified by @mask.
434 */
Yinghai Lufb7ebfe2012-01-04 15:50:02 -0800435int pcim_iomap_regions(struct pci_dev *pdev, int mask, const char *name)
Al Viro5ea81762007-02-11 15:41:31 +0000436{
437 void __iomem * const *iomap;
438 int i, rc;
439
440 iomap = pcim_iomap_table(pdev);
441 if (!iomap)
442 return -ENOMEM;
443
444 for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
445 unsigned long len;
446
447 if (!(mask & (1 << i)))
448 continue;
449
450 rc = -EINVAL;
451 len = pci_resource_len(pdev, i);
452 if (!len)
453 goto err_inval;
454
455 rc = pci_request_region(pdev, i, name);
456 if (rc)
Frederik Deweerdtfb4d64e2007-02-16 01:27:15 -0800457 goto err_inval;
Al Viro5ea81762007-02-11 15:41:31 +0000458
459 rc = -ENOMEM;
460 if (!pcim_iomap(pdev, i, 0))
Frederik Deweerdtfb4d64e2007-02-16 01:27:15 -0800461 goto err_region;
Al Viro5ea81762007-02-11 15:41:31 +0000462 }
463
464 return 0;
465
Al Viro5ea81762007-02-11 15:41:31 +0000466 err_region:
467 pci_release_region(pdev, i);
468 err_inval:
469 while (--i >= 0) {
Frederik Deweerdtfb4d64e2007-02-16 01:27:15 -0800470 if (!(mask & (1 << i)))
471 continue;
Al Viro5ea81762007-02-11 15:41:31 +0000472 pcim_iounmap(pdev, iomap[i]);
473 pci_release_region(pdev, i);
474 }
475
476 return rc;
477}
478EXPORT_SYMBOL(pcim_iomap_regions);
Tejun Heoec04b072007-03-09 19:45:58 +0900479
480/**
Tejun Heo916fbfb2008-03-12 15:26:34 +0900481 * pcim_iomap_regions_request_all - Request all BARs and iomap specified ones
482 * @pdev: PCI device to map IO resources for
483 * @mask: Mask of BARs to iomap
484 * @name: Name used when requesting regions
485 *
486 * Request all PCI BARs and iomap regions specified by @mask.
487 */
Yinghai Lufb7ebfe2012-01-04 15:50:02 -0800488int pcim_iomap_regions_request_all(struct pci_dev *pdev, int mask,
Tejun Heo916fbfb2008-03-12 15:26:34 +0900489 const char *name)
490{
491 int request_mask = ((1 << 6) - 1) & ~mask;
492 int rc;
493
494 rc = pci_request_selected_regions(pdev, request_mask, name);
495 if (rc)
496 return rc;
497
498 rc = pcim_iomap_regions(pdev, mask, name);
499 if (rc)
500 pci_release_selected_regions(pdev, request_mask);
501 return rc;
502}
503EXPORT_SYMBOL(pcim_iomap_regions_request_all);
504
505/**
Tejun Heoec04b072007-03-09 19:45:58 +0900506 * pcim_iounmap_regions - Unmap and release PCI BARs
507 * @pdev: PCI device to map IO resources for
508 * @mask: Mask of BARs to unmap and release
509 *
Kulikov Vasiliy4d45ada2010-07-10 14:07:41 +0400510 * Unmap and release regions specified by @mask.
Tejun Heoec04b072007-03-09 19:45:58 +0900511 */
Yinghai Lufb7ebfe2012-01-04 15:50:02 -0800512void pcim_iounmap_regions(struct pci_dev *pdev, int mask)
Tejun Heoec04b072007-03-09 19:45:58 +0900513{
514 void __iomem * const *iomap;
515 int i;
516
517 iomap = pcim_iomap_table(pdev);
518 if (!iomap)
519 return;
520
Dan Carpenter1f35d042015-09-21 19:21:51 +0300521 for (i = 0; i < PCIM_IOMAP_MAX; i++) {
Tejun Heoec04b072007-03-09 19:45:58 +0900522 if (!(mask & (1 << i)))
523 continue;
524
525 pcim_iounmap(pdev, iomap[i]);
526 pci_release_region(pdev, i);
527 }
528}
529EXPORT_SYMBOL(pcim_iounmap_regions);
Wolfram Sang571806a2011-10-25 15:03:42 +0200530#endif /* CONFIG_PCI */