Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * c 2001 PPC 64 Team, IBM Corp |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; either version |
| 7 | * 2 of the License, or (at your option) any later version. |
| 8 | */ |
Stephen Rothwell | d387899 | 2005-09-28 02:50:25 +1000 | [diff] [blame] | 9 | #ifndef _ASM_POWERPC_PPC_PCI_H |
| 10 | #define _ASM_POWERPC_PPC_PCI_H |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 11 | #ifdef __KERNEL__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 12 | |
| 13 | #include <linux/pci.h> |
| 14 | #include <asm/pci-bridge.h> |
| 15 | |
| 16 | extern unsigned long isa_io_base; |
| 17 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 18 | extern void pci_setup_phb_io(struct pci_controller *hose, int primary); |
| 19 | extern void pci_setup_phb_io_dynamic(struct pci_controller *hose, int primary); |
| 20 | |
| 21 | |
| 22 | extern struct list_head hose_list; |
| 23 | extern int global_phb_number; |
| 24 | |
| 25 | extern unsigned long find_and_init_phbs(void); |
| 26 | |
| 27 | extern struct pci_dev *ppc64_isabridge_dev; /* may be NULL if no ISA bus */ |
| 28 | |
linas | ae65a39 | 2005-11-03 18:42:26 -0600 | [diff] [blame] | 29 | /** Bus Unit ID macros; get low and hi 32-bits of the 64-bit BUID */ |
| 30 | #define BUID_HI(buid) ((buid) >> 32) |
| 31 | #define BUID_LO(buid) ((buid) & 0xffffffff) |
| 32 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | /* PCI device_node operations */ |
| 34 | struct device_node; |
| 35 | typedef void *(*traverse_func)(struct device_node *me, void *data); |
| 36 | void *traverse_pci_devices(struct device_node *start, traverse_func pre, |
| 37 | void *data); |
| 38 | |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 39 | extern void pci_devs_phb_init(void); |
| 40 | extern void pci_devs_phb_init_dynamic(struct pci_controller *phb); |
| 41 | extern void scan_phb(struct pci_controller *hose); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | |
John Rose | dad32bb | 2005-06-23 17:09:54 +1000 | [diff] [blame] | 43 | /* From rtas_pci.h */ |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 44 | extern void init_pci_config_tokens (void); |
| 45 | extern unsigned long get_phb_buid (struct device_node *); |
| 46 | extern int rtas_setup_phb(struct pci_controller *phb); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | |
John Rose | dad32bb | 2005-06-23 17:09:54 +1000 | [diff] [blame] | 48 | /* From pSeries_pci.h */ |
| 49 | extern void pSeries_final_fixup(void); |
John Rose | dad32bb | 2005-06-23 17:09:54 +1000 | [diff] [blame] | 50 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 51 | extern unsigned long pci_probe_only; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 53 | /* ---- EEH internal-use-only related routines ---- */ |
| 54 | #ifdef CONFIG_EEH |
Linas Vepstas | 5d5a093 | 2005-11-03 18:53:07 -0600 | [diff] [blame] | 55 | |
| 56 | void pci_addr_cache_insert_device(struct pci_dev *dev); |
| 57 | void pci_addr_cache_remove_device(struct pci_dev *dev); |
| 58 | void pci_addr_cache_build(void); |
| 59 | struct pci_dev *pci_get_device_by_addr(unsigned long addr); |
| 60 | |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 61 | /** |
Linas Vepstas | 77bd741 | 2005-11-03 18:52:49 -0600 | [diff] [blame] | 62 | * eeh_slot_error_detail -- record and EEH error condition to the log |
| 63 | * @severity: 1 if temporary, 2 if permanent failure. |
| 64 | * |
| 65 | * Obtains the the EEH error details from the RTAS subsystem, |
| 66 | * and then logs these details with the RTAS error log system. |
| 67 | */ |
| 68 | void eeh_slot_error_detail (struct pci_dn *pdn, int severity); |
| 69 | |
| 70 | /** |
Linas Vepstas | 47b5c83 | 2006-09-15 18:57:42 -0500 | [diff] [blame] | 71 | * rtas_pci_enableo - enable IO transfers for this slot |
| 72 | * @pdn: pci device node |
| 73 | * @function: either EEH_THAW_MMIO or EEH_THAW_DMA |
| 74 | * |
| 75 | * Enable I/O transfers to this slot |
| 76 | */ |
| 77 | #define EEH_THAW_MMIO 2 |
| 78 | #define EEH_THAW_DMA 3 |
| 79 | int rtas_pci_enable(struct pci_dn *pdn, int function); |
| 80 | |
| 81 | /** |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 82 | * rtas_set_slot_reset -- unfreeze a frozen slot |
| 83 | * |
| 84 | * Clear the EEH-frozen condition on a slot. This routine |
| 85 | * does this by asserting the PCI #RST line for 1/8th of |
| 86 | * a second; this routine will sleep while the adapter is |
| 87 | * being reset. |
Linas Vepstas | b6495c0 | 2005-11-03 18:54:54 -0600 | [diff] [blame] | 88 | * |
| 89 | * Returns a non-zero value if the reset failed. |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 90 | */ |
Linas Vepstas | b6495c0 | 2005-11-03 18:54:54 -0600 | [diff] [blame] | 91 | int rtas_set_slot_reset (struct pci_dn *); |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 92 | |
Linas Vepstas | 8b553f3 | 2005-11-03 18:50:17 -0600 | [diff] [blame] | 93 | /** |
| 94 | * eeh_restore_bars - Restore device configuration info. |
| 95 | * |
| 96 | * A reset of a PCI device will clear out its config space. |
| 97 | * This routines will restore the config space for this |
| 98 | * device, and is children, to values previously obtained |
| 99 | * from the firmware. |
| 100 | */ |
| 101 | void eeh_restore_bars(struct pci_dn *); |
| 102 | |
| 103 | /** |
| 104 | * rtas_configure_bridge -- firmware initialization of pci bridge |
| 105 | * |
| 106 | * Ask the firmware to configure all PCI bridges devices |
| 107 | * located behind the indicated node. Required after a |
| 108 | * pci device reset. Does essentially the same hing as |
| 109 | * eeh_restore_bars, but for brdges, and lets firmware |
| 110 | * do the work. |
| 111 | */ |
| 112 | void rtas_configure_bridge(struct pci_dn *); |
| 113 | |
| 114 | int rtas_write_config(struct pci_dn *, int where, int size, u32 val); |
Linas Vepstas | 7684b40 | 2005-11-03 18:55:19 -0600 | [diff] [blame] | 115 | int rtas_read_config(struct pci_dn *, int where, int size, u32 *val); |
Linas Vepstas | 8b553f3 | 2005-11-03 18:50:17 -0600 | [diff] [blame] | 116 | |
Linas Vepstas | d9564ad | 2005-11-03 18:50:48 -0600 | [diff] [blame] | 117 | /** |
| 118 | * mark and clear slots: find "partition endpoint" PE and set or |
| 119 | * clear the flags for each subnode of the PE. |
| 120 | */ |
| 121 | void eeh_mark_slot (struct device_node *dn, int mode_flag); |
| 122 | void eeh_clear_slot (struct device_node *dn, int mode_flag); |
| 123 | |
Linas Vepstas | 9fb40eb | 2005-11-03 18:54:29 -0600 | [diff] [blame] | 124 | /* Find the associated "Partiationable Endpoint" PE */ |
| 125 | struct device_node * find_device_pe(struct device_node *dn); |
| 126 | |
Linas Vepstas | 6dee3fb | 2005-11-03 18:50:10 -0600 | [diff] [blame] | 127 | #endif |
| 128 | |
Arnd Bergmann | 88ced03 | 2005-12-16 22:43:46 +0100 | [diff] [blame] | 129 | #endif /* __KERNEL__ */ |
Stephen Rothwell | d387899 | 2005-09-28 02:50:25 +1000 | [diff] [blame] | 130 | #endif /* _ASM_POWERPC_PPC_PCI_H */ |