pci_autoconfig.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*
* Interfaces internal to the i86pc PCI nexus driver.
*/
#ifndef _SYS_PCI_AUTOCONFIG_H
#define _SYS_PCI_AUTOCONFIG_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/mutex.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* Routines to support particular PCI chipsets
*/
/*
* Generic Mechanism 1 routines
* XX64 putb -> put8, putw -> put16 etc.
*/
extern uint8_t pci_mech1_getb(int bus, int dev, int func, int reg);
extern uint16_t pci_mech1_getw(int bus, int dev, int func, int reg);
extern uint32_t pci_mech1_getl(int bus, int dev, int func, int reg);
extern void pci_mech1_putb(int bus, int dev, int func, int reg, uint8_t val);
extern void pci_mech1_putw(int bus, int dev, int func, int reg, uint16_t val);
extern void pci_mech1_putl(int bus, int dev, int func, int reg, uint32_t val);
/*
* Generic Mechanism 2 routines
*/
extern uint8_t pci_mech2_getb(int bus, int dev, int func, int reg);
extern uint16_t pci_mech2_getw(int bus, int dev, int func, int reg);
extern uint32_t pci_mech2_getl(int bus, int dev, int func, int reg);
extern void pci_mech2_putb(int bus, int dev, int func, int reg, uint8_t val);
extern void pci_mech2_putw(int bus, int dev, int func, int reg, uint16_t val);
extern void pci_mech2_putl(int bus, int dev, int func, int reg, uint32_t val);
/*
* Intel Neptune routines. Neptune is Mech 1, except that BIOSes
* often initialize it into Mech 2 so we dynamically switch it to
* Mech 1. The chipset's buggy, so we have to do it carefully.
*/
extern boolean_t pci_check_neptune(void);
extern uint8_t pci_neptune_getb(int bus, int dev, int func, int reg);
extern uint16_t pci_neptune_getw(int bus, int dev, int func, int reg);
extern uint32_t pci_neptune_getl(int bus, int dev, int func, int reg);
extern void pci_neptune_putb(int bus, int dev, int func, int reg, uint8_t val);
extern void pci_neptune_putw(int bus, int dev, int func, int reg, uint16_t val);
extern void pci_neptune_putl(int bus, int dev, int func, int reg, uint32_t val);
/*
* Intel Orion routines. Orion is Mech 1, except that there's a bug
* in the peer bridge that requires that it be tweaked specially
* around accesses to config space.
*/
extern boolean_t pci_is_broken_orion(void);
extern uint8_t pci_orion_getb(int bus, int dev, int func, int reg);
extern uint16_t pci_orion_getw(int bus, int dev, int func, int reg);
extern uint32_t pci_orion_getl(int bus, int dev, int func, int reg);
extern void pci_orion_putb(int bus, int dev, int func, int reg, uint8_t val);
extern void pci_orion_putw(int bus, int dev, int func, int reg, uint16_t val);
extern void pci_orion_putl(int bus, int dev, int func, int reg, uint32_t val);
/*
* Generic PCI constants. Probably these should be in pci.h.
*/
#define PCI_MAX_BUSSES 256
#define PCI_MAX_DEVS 32
#define PCI_MAX_FUNCS 8
/*
* PCI access mechanism constants. Probably these should be in pci_impl.h.
*/
#define PCI_MECH2_CONFIG_ENABLE 0x10 /* any nonzero high nibble works */
#define PCI_MECH1_SPEC_CYCLE_DEV 0x1f /* dev to request spec cyc */
#define PCI_MECH1_SPEC_CYCLE_FUNC 0x07 /* func to request spec cyc */
/*
* Mutex for all pci config space routines to share
*/
extern kmutex_t pcicfg_mutex;
/*
* Orion/Neptune cfg access wraps mech1 cfg access, so needs a separate mutex
*/
extern kmutex_t pcicfg_chipset_mutex;
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PCI_AUTOCONFIG_H */