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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
| commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
| tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /include/asm-generic/pci_iomap.h | |
| parent | Initial commit. (diff) | |
| download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip | |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'include/asm-generic/pci_iomap.h')
| -rw-r--r-- | include/asm-generic/pci_iomap.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h new file mode 100644 index 000000000..8fbb0a555 --- /dev/null +++ b/include/asm-generic/pci_iomap.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* Generic I/O port emulation. + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ +#ifndef __ASM_GENERIC_PCI_IOMAP_H +#define __ASM_GENERIC_PCI_IOMAP_H + +struct pci_dev; +#ifdef CONFIG_PCI +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +extern void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max); +extern void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, + unsigned long offset, + unsigned long maxlen); +extern void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, + unsigned long offset, + unsigned long maxlen); +extern void pci_iounmap(struct pci_dev *dev, void __iomem *); +/* Create a virtual mapping cookie for a port on a given PCI device. + * Do not call this directly, it exists to make it easier for architectures + * to override */ +#ifdef CONFIG_NO_GENERIC_PCI_IOPORT_MAP +extern void __iomem *__pci_ioport_map(struct pci_dev *dev, unsigned long port, + unsigned int nr); +#elif !defined(CONFIG_HAS_IOPORT_MAP) +#define __pci_ioport_map(dev, port, nr) NULL +#else +#define __pci_ioport_map(dev, port, nr) ioport_map((port), (nr)) +#endif + +#elif defined(CONFIG_GENERIC_PCI_IOMAP) +static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) +{ + return NULL; +} + +static inline void __iomem *pci_iomap_wc(struct pci_dev *dev, int bar, unsigned long max) +{ + return NULL; +} +static inline void __iomem *pci_iomap_range(struct pci_dev *dev, int bar, + unsigned long offset, + unsigned long maxlen) +{ + return NULL; +} +static inline void __iomem *pci_iomap_wc_range(struct pci_dev *dev, int bar, + unsigned long offset, + unsigned long maxlen) +{ + return NULL; +} +static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) +{ } +#endif + +#endif /* __ASM_GENERIC_PCI_IOMAP_H */ |