src/arch/x86/include/arch/pci_mmio_cfg.h

/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2007-2009 coresystems GmbH
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef _PCI_MMIO_CFG_H
#define _PCI_MMIO_CFG_H

#include <arch/io.h>

#define DEFAULT_PCIEXBAR	CONFIG_MMCONF_BASE_ADDRESS

static inline __attribute__ ((always_inline))
u8 pci_mmio_read_config8(pci_devfn_t dev, unsigned int where)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | where);
	return read8(addr);
}

static inline __attribute__ ((always_inline))
u16 pci_mmio_read_config16(pci_devfn_t dev, unsigned int where)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | (where & ~1));
	return read16(addr);
}

static inline __attribute__ ((always_inline))
u32 pci_mmio_read_config32(pci_devfn_t dev, unsigned int where)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | (where & ~3));
	return read32(addr);
}

static inline __attribute__ ((always_inline))
void pci_mmio_write_config8(pci_devfn_t dev, unsigned int where, u8 value)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | where);
	write8(addr, value);
}

static inline __attribute__ ((always_inline))
void pci_mmio_write_config16(pci_devfn_t dev, unsigned int where, u16 value)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | (where & ~1));
	write16(addr, value);
}

static inline __attribute__ ((always_inline))
void pci_mmio_write_config32(pci_devfn_t dev, unsigned int where, u32 value)
{
	void *addr;
	addr = (void *)(uintptr_t)(DEFAULT_PCIEXBAR | dev | (where & ~3));
	write32(addr, value);
}

#endif /* _PCI_MMIO_CFG_H */