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/*
* 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 <stdint.h>
#include <device/mmio.h>
#include <device/pci_type.h>
#define DEFAULT_PCIEXBAR CONFIG_MMCONF_BASE_ADDRESS
static __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 __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 __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 __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 __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 __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);
}
#if IS_ENABLED(CONFIG_MMCONF_SUPPORT)
/* Avoid name collisions as different stages have different signature
* for these functions. The _s_ stands for simple, fundamental IO or
* MMIO variant.
*/
static __always_inline
uint8_t pci_s_read_config8(pci_devfn_t dev, unsigned int where)
{
return pci_mmio_read_config8(dev, where);
}
static __always_inline
uint16_t pci_s_read_config16(pci_devfn_t dev, unsigned int where)
{
return pci_mmio_read_config16(dev, where);
}
static __always_inline
uint32_t pci_s_read_config32(pci_devfn_t dev, unsigned int where)
{
return pci_mmio_read_config32(dev, where);
}
static __always_inline
void pci_s_write_config8(pci_devfn_t dev, unsigned int where, uint8_t value)
{
pci_mmio_write_config8(dev, where, value);
}
static __always_inline
void pci_s_write_config16(pci_devfn_t dev, unsigned int where, uint16_t value)
{
pci_mmio_write_config16(dev, where, value);
}
static __always_inline
void pci_s_write_config32(pci_devfn_t dev, unsigned int where, uint32_t value)
{
pci_mmio_write_config32(dev, where, value);
}
#endif
#endif /* _PCI_MMIO_CFG_H */
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