|
@@ -6,7 +6,6 @@
|
|
|
#include <linux/pci.h>
|
|
|
#include <linux/io.h>
|
|
|
|
|
|
-#ifdef CONFIG_GENERIC_IOMAP
|
|
|
#include <linux/module.h>
|
|
|
|
|
|
/*
|
|
@@ -256,298 +255,3 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
|
|
|
}
|
|
|
EXPORT_SYMBOL(pci_iomap);
|
|
|
EXPORT_SYMBOL(pci_iounmap);
|
|
|
-
|
|
|
-#endif /* CONFIG_GENERIC_IOMAP */
|
|
|
-
|
|
|
-/*
|
|
|
- * Generic iomap devres
|
|
|
- */
|
|
|
-static void devm_ioport_map_release(struct device *dev, void *res)
|
|
|
-{
|
|
|
- ioport_unmap(*(void __iomem **)res);
|
|
|
-}
|
|
|
-
|
|
|
-static int devm_ioport_map_match(struct device *dev, void *res,
|
|
|
- void *match_data)
|
|
|
-{
|
|
|
- return *(void **)res == match_data;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * devm_ioport_map - Managed ioport_map()
|
|
|
- * @dev: Generic device to map ioport for
|
|
|
- * @port: Port to map
|
|
|
- * @nr: Number of ports to map
|
|
|
- *
|
|
|
- * Managed ioport_map(). Map is automatically unmapped on driver
|
|
|
- * detach.
|
|
|
- */
|
|
|
-void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
|
|
|
- unsigned int nr)
|
|
|
-{
|
|
|
- void __iomem **ptr, *addr;
|
|
|
-
|
|
|
- ptr = devres_alloc(devm_ioport_map_release, sizeof(*ptr), GFP_KERNEL);
|
|
|
- if (!ptr)
|
|
|
- return NULL;
|
|
|
-
|
|
|
- addr = ioport_map(port, nr);
|
|
|
- if (addr) {
|
|
|
- *ptr = addr;
|
|
|
- devres_add(dev, ptr);
|
|
|
- } else
|
|
|
- devres_free(ptr);
|
|
|
-
|
|
|
- return addr;
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(devm_ioport_map);
|
|
|
-
|
|
|
-/**
|
|
|
- * devm_ioport_unmap - Managed ioport_unmap()
|
|
|
- * @dev: Generic device to unmap for
|
|
|
- * @addr: Address to unmap
|
|
|
- *
|
|
|
- * Managed ioport_unmap(). @addr must have been mapped using
|
|
|
- * devm_ioport_map().
|
|
|
- */
|
|
|
-void devm_ioport_unmap(struct device *dev, void __iomem *addr)
|
|
|
-{
|
|
|
- ioport_unmap(addr);
|
|
|
- WARN_ON(devres_destroy(dev, devm_ioport_map_release,
|
|
|
- devm_ioport_map_match, (void *)addr));
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(devm_ioport_unmap);
|
|
|
-
|
|
|
-static void devm_ioremap_release(struct device *dev, void *res)
|
|
|
-{
|
|
|
- iounmap(*(void __iomem **)res);
|
|
|
-}
|
|
|
-
|
|
|
-static int devm_ioremap_match(struct device *dev, void *res, void *match_data)
|
|
|
-{
|
|
|
- return *(void **)res == match_data;
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * devm_ioremap - Managed ioremap()
|
|
|
- * @dev: Generic device to remap IO address for
|
|
|
- * @offset: BUS offset to map
|
|
|
- * @size: Size of map
|
|
|
- *
|
|
|
- * Managed ioremap(). Map is automatically unmapped on driver detach.
|
|
|
- */
|
|
|
-void __iomem *devm_ioremap(struct device *dev, unsigned long offset,
|
|
|
- unsigned long size)
|
|
|
-{
|
|
|
- void __iomem **ptr, *addr;
|
|
|
-
|
|
|
- ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL);
|
|
|
- if (!ptr)
|
|
|
- return NULL;
|
|
|
-
|
|
|
- addr = ioremap(offset, size);
|
|
|
- if (addr) {
|
|
|
- *ptr = addr;
|
|
|
- devres_add(dev, ptr);
|
|
|
- } else
|
|
|
- devres_free(ptr);
|
|
|
-
|
|
|
- return addr;
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(devm_ioremap);
|
|
|
-
|
|
|
-/**
|
|
|
- * devm_ioremap_nocache - Managed ioremap_nocache()
|
|
|
- * @dev: Generic device to remap IO address for
|
|
|
- * @offset: BUS offset to map
|
|
|
- * @size: Size of map
|
|
|
- *
|
|
|
- * Managed ioremap_nocache(). Map is automatically unmapped on driver
|
|
|
- * detach.
|
|
|
- */
|
|
|
-void __iomem *devm_ioremap_nocache(struct device *dev, unsigned long offset,
|
|
|
- unsigned long size)
|
|
|
-{
|
|
|
- void __iomem **ptr, *addr;
|
|
|
-
|
|
|
- ptr = devres_alloc(devm_ioremap_release, sizeof(*ptr), GFP_KERNEL);
|
|
|
- if (!ptr)
|
|
|
- return NULL;
|
|
|
-
|
|
|
- addr = ioremap_nocache(offset, size);
|
|
|
- if (addr) {
|
|
|
- *ptr = addr;
|
|
|
- devres_add(dev, ptr);
|
|
|
- } else
|
|
|
- devres_free(ptr);
|
|
|
-
|
|
|
- return addr;
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(devm_ioremap_nocache);
|
|
|
-
|
|
|
-/**
|
|
|
- * devm_iounmap - Managed iounmap()
|
|
|
- * @dev: Generic device to unmap for
|
|
|
- * @addr: Address to unmap
|
|
|
- *
|
|
|
- * Managed iounmap(). @addr must have been mapped using devm_ioremap*().
|
|
|
- */
|
|
|
-void devm_iounmap(struct device *dev, void __iomem *addr)
|
|
|
-{
|
|
|
- iounmap(addr);
|
|
|
- WARN_ON(devres_destroy(dev, devm_ioremap_release, devm_ioremap_match,
|
|
|
- (void *)addr));
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(devm_iounmap);
|
|
|
-
|
|
|
-/*
|
|
|
- * PCI iomap devres
|
|
|
- */
|
|
|
-#define PCIM_IOMAP_MAX PCI_ROM_RESOURCE
|
|
|
-
|
|
|
-struct pcim_iomap_devres {
|
|
|
- void __iomem *table[PCIM_IOMAP_MAX];
|
|
|
-};
|
|
|
-
|
|
|
-static void pcim_iomap_release(struct device *gendev, void *res)
|
|
|
-{
|
|
|
- struct pci_dev *dev = container_of(gendev, struct pci_dev, dev);
|
|
|
- struct pcim_iomap_devres *this = res;
|
|
|
- int i;
|
|
|
-
|
|
|
- for (i = 0; i < PCIM_IOMAP_MAX; i++)
|
|
|
- if (this->table[i])
|
|
|
- pci_iounmap(dev, this->table[i]);
|
|
|
-}
|
|
|
-
|
|
|
-/**
|
|
|
- * pcim_iomap_table - access iomap allocation table
|
|
|
- * @pdev: PCI device to access iomap table for
|
|
|
- *
|
|
|
- * Access iomap allocation table for @dev. If iomap table doesn't
|
|
|
- * exist and @pdev is managed, it will be allocated. All iomaps
|
|
|
- * recorded in the iomap table are automatically unmapped on driver
|
|
|
- * detach.
|
|
|
- *
|
|
|
- * This function might sleep when the table is first allocated but can
|
|
|
- * be safely called without context and guaranteed to succed once
|
|
|
- * allocated.
|
|
|
- */
|
|
|
-void __iomem * const * pcim_iomap_table(struct pci_dev *pdev)
|
|
|
-{
|
|
|
- struct pcim_iomap_devres *dr, *new_dr;
|
|
|
-
|
|
|
- dr = devres_find(&pdev->dev, pcim_iomap_release, NULL, NULL);
|
|
|
- if (dr)
|
|
|
- return dr->table;
|
|
|
-
|
|
|
- new_dr = devres_alloc(pcim_iomap_release, sizeof(*new_dr), GFP_KERNEL);
|
|
|
- if (!new_dr)
|
|
|
- return NULL;
|
|
|
- dr = devres_get(&pdev->dev, new_dr, NULL, NULL);
|
|
|
- return dr->table;
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(pcim_iomap_table);
|
|
|
-
|
|
|
-/**
|
|
|
- * pcim_iomap - Managed pcim_iomap()
|
|
|
- * @pdev: PCI device to iomap for
|
|
|
- * @bar: BAR to iomap
|
|
|
- * @maxlen: Maximum length of iomap
|
|
|
- *
|
|
|
- * Managed pci_iomap(). Map is automatically unmapped on driver
|
|
|
- * detach.
|
|
|
- */
|
|
|
-void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
|
|
|
-{
|
|
|
- void __iomem **tbl;
|
|
|
-
|
|
|
- BUG_ON(bar >= PCIM_IOMAP_MAX);
|
|
|
-
|
|
|
- tbl = (void __iomem **)pcim_iomap_table(pdev);
|
|
|
- if (!tbl || tbl[bar]) /* duplicate mappings not allowed */
|
|
|
- return NULL;
|
|
|
-
|
|
|
- tbl[bar] = pci_iomap(pdev, bar, maxlen);
|
|
|
- return tbl[bar];
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(pcim_iomap);
|
|
|
-
|
|
|
-/**
|
|
|
- * pcim_iounmap - Managed pci_iounmap()
|
|
|
- * @pdev: PCI device to iounmap for
|
|
|
- * @addr: Address to unmap
|
|
|
- *
|
|
|
- * Managed pci_iounmap(). @addr must have been mapped using pcim_iomap().
|
|
|
- */
|
|
|
-void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr)
|
|
|
-{
|
|
|
- void __iomem **tbl;
|
|
|
- int i;
|
|
|
-
|
|
|
- pci_iounmap(pdev, addr);
|
|
|
-
|
|
|
- tbl = (void __iomem **)pcim_iomap_table(pdev);
|
|
|
- BUG_ON(!tbl);
|
|
|
-
|
|
|
- for (i = 0; i < PCIM_IOMAP_MAX; i++)
|
|
|
- if (tbl[i] == addr) {
|
|
|
- tbl[i] = NULL;
|
|
|
- return;
|
|
|
- }
|
|
|
- WARN_ON(1);
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(pcim_iounmap);
|
|
|
-
|
|
|
-/**
|
|
|
- * pcim_iomap_regions - Request and iomap PCI BARs
|
|
|
- * @pdev: PCI device to map IO resources for
|
|
|
- * @mask: Mask of BARs to request and iomap
|
|
|
- * @name: Name used when requesting regions
|
|
|
- *
|
|
|
- * Request and iomap regions specified by @mask.
|
|
|
- */
|
|
|
-int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name)
|
|
|
-{
|
|
|
- void __iomem * const *iomap;
|
|
|
- int i, rc;
|
|
|
-
|
|
|
- iomap = pcim_iomap_table(pdev);
|
|
|
- if (!iomap)
|
|
|
- return -ENOMEM;
|
|
|
-
|
|
|
- for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
|
|
|
- unsigned long len;
|
|
|
-
|
|
|
- if (!(mask & (1 << i)))
|
|
|
- continue;
|
|
|
-
|
|
|
- rc = -EINVAL;
|
|
|
- len = pci_resource_len(pdev, i);
|
|
|
- if (!len)
|
|
|
- goto err_inval;
|
|
|
-
|
|
|
- rc = pci_request_region(pdev, i, name);
|
|
|
- if (rc)
|
|
|
- goto err_region;
|
|
|
-
|
|
|
- rc = -ENOMEM;
|
|
|
- if (!pcim_iomap(pdev, i, 0))
|
|
|
- goto err_iomap;
|
|
|
- }
|
|
|
-
|
|
|
- return 0;
|
|
|
-
|
|
|
- err_iomap:
|
|
|
- pcim_iounmap(pdev, iomap[i]);
|
|
|
- err_region:
|
|
|
- pci_release_region(pdev, i);
|
|
|
- err_inval:
|
|
|
- while (--i >= 0) {
|
|
|
- pcim_iounmap(pdev, iomap[i]);
|
|
|
- pci_release_region(pdev, i);
|
|
|
- }
|
|
|
-
|
|
|
- return rc;
|
|
|
-}
|
|
|
-EXPORT_SYMBOL(pcim_iomap_regions);
|