From c63587d7f5b9db84e71daf5962dc0394eb657da2 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Mon, 11 Jun 2012 05:27:19 +0000 Subject: [PATCH] PCI: export pci_user functions for use by other drivers VFIO PCI support will make use of these for user-initiated PCI config accesses. Signed-off-by: Alex Williamson Signed-off-by: Bjorn Helgaas --- drivers/pci/access.c | 6 ++++-- drivers/pci/pci.h | 7 ------- include/linux/pci.h | 8 ++++++++ 3 files changed, 12 insertions(+), 9 deletions(-) diff --git a/drivers/pci/access.c b/drivers/pci/access.c index 2a581642c237..ba91a7e17519 100644 --- a/drivers/pci/access.c +++ b/drivers/pci/access.c @@ -162,7 +162,8 @@ int pci_user_read_config_##size \ if (ret > 0) \ ret = -EINVAL; \ return ret; \ -} +} \ +EXPORT_SYMBOL_GPL(pci_user_read_config_##size); /* Returns 0 on success, negative values indicate error. */ #define PCI_USER_WRITE_CONFIG(size,type) \ @@ -181,7 +182,8 @@ int pci_user_write_config_##size \ if (ret > 0) \ ret = -EINVAL; \ return ret; \ -} +} \ +EXPORT_SYMBOL_GPL(pci_user_write_config_##size); PCI_USER_READ_CONFIG(byte, u8) PCI_USER_READ_CONFIG(word, u16) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index e4943479b234..f2dcc46bdece 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -86,13 +86,6 @@ static inline bool pci_is_bridge(struct pci_dev *pci_dev) return !!(pci_dev->subordinate); } -extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); -extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); -extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); -extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); -extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); -extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); - struct pci_vpd_ops { ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf); ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf); diff --git a/include/linux/pci.h b/include/linux/pci.h index dd7af0f37b3a..9d04599c6bd9 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -777,6 +777,14 @@ static inline int pci_write_config_dword(const struct pci_dev *dev, int where, return pci_bus_write_config_dword(dev->bus, dev->devfn, where, val); } +/* user-space driven config access */ +int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val); +int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val); +int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val); +int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val); +int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val); +int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val); + int __must_check pci_enable_device(struct pci_dev *dev); int __must_check pci_enable_device_io(struct pci_dev *dev); int __must_check pci_enable_device_mem(struct pci_dev *dev); -- 2.20.1