arch/powerpc/include/asm/ppc-pci.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * c 2001 PPC 64 Team, IBM Corp
   4  */
   5 #ifndef _ASM_POWERPC_PPC_PCI_H
   6 #define _ASM_POWERPC_PPC_PCI_H
   7 #ifdef __KERNEL__
   8
   9 #ifdef CONFIG_PCI
  10
  11 #include <linux/pci.h>
  12 #include <asm/pci-bridge.h>
  13
  14 extern unsigned long isa_io_base;
  15
  16 extern void pci_setup_phb_io(struct pci_controller *hose, int primary);
  17 extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary);
  18
  19
  20 extern struct list_head hose_list;
  21
  22 extern struct pci_dev *isa_bridge_pcidev;       /* may be NULL if no ISA bus */
  23
  24 /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */
  25 #define BUID_HI(buid) upper_32_bits(buid)
  26 #define BUID_LO(buid) lower_32_bits(buid)
  27
  28 /* PCI device_node operations */
  29 struct device_node;
  30 struct pci_dn;
  31
  32 void *pci_traverse_device_nodes(struct device_node *start,
  33                                 void *(*fn)(struct device_node *, void *),
  34                                 void *data);
  35 void *traverse_pci_dn(struct pci_dn *root,
  36                       void *(*fn)(struct pci_dn *, void *),
  37                       void *data);
  38 extern void pci_devs_phb_init_dynamic(struct pci_controller *phb);
  39
  40 /* From rtas_pci.h */
  41 extern void init_pci_config_tokens (void);
  42 extern unsigned long get_phb_buid (struct device_node *);
  43 extern int rtas_setup_phb(struct pci_controller *phb);
  44
  45 #ifdef CONFIG_EEH
  46
  47 void eeh_addr_cache_insert_dev(struct pci_dev *dev);
  48 void eeh_addr_cache_rmv_dev(struct pci_dev *dev);
  49 struct eeh_dev *eeh_addr_cache_get_dev(unsigned long addr);
  50 void eeh_slot_error_detail(struct eeh_pe *pe, int severity);
  51 int eeh_pci_enable(struct eeh_pe *pe, int function);
  52 int eeh_pe_reset_full(struct eeh_pe *pe, bool include_passed);
  53 void eeh_save_bars(struct eeh_dev *edev);
  54 int rtas_write_config(struct pci_dn *, int where, int size, u32 val);
  55 int rtas_read_config(struct pci_dn *, int where, int size, u32 *val);
  56 void eeh_pe_state_mark(struct eeh_pe *pe, int state);
  57 void eeh_pe_mark_isolated(struct eeh_pe *pe);
  58 void eeh_pe_state_clear(struct eeh_pe *pe, int state, bool include_passed);
  59 void eeh_pe_state_mark_with_cfg(struct eeh_pe *pe, int state);
  60 void eeh_pe_dev_mode_mark(struct eeh_pe *pe, int mode);
  61
  62 void eeh_sysfs_add_device(struct pci_dev *pdev);
  63 void eeh_sysfs_remove_device(struct pci_dev *pdev);
  64
  65 static inline const char *eeh_driver_name(struct pci_dev *pdev)
  66 {
  67         return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
  68 }
  69
  70 #endif /* CONFIG_EEH */
  71
  72 #define PCI_BUSNO(bdfn) ((bdfn >> 8) & 0xff)
  73
  74 #else /* CONFIG_PCI */
  75 static inline void init_pci_config_tokens(void) { }
  76 #endif /* !CONFIG_PCI */
  77
  78 #endif /* __KERNEL__ */
  79 #endif /* _ASM_POWERPC_PPC_PCI_H */