| /* |
| * 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 <arch/io.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) |
| |
| #ifdef __SIMPLE_DEVICE__ |
| static __always_inline |
| uint8_t pci_read_config8(pci_devfn_t dev, unsigned int where) |
| { |
| return pci_mmio_read_config8(dev, where); |
| } |
| |
| static __always_inline |
| uint16_t pci_read_config16(pci_devfn_t dev, unsigned int where) |
| { |
| return pci_mmio_read_config16(dev, where); |
| } |
| |
| static __always_inline |
| uint32_t pci_read_config32(pci_devfn_t dev, unsigned int where) |
| { |
| return pci_mmio_read_config32(dev, where); |
| } |
| |
| static __always_inline |
| void pci_write_config8(pci_devfn_t dev, unsigned int where, uint8_t value) |
| { |
| pci_mmio_write_config8(dev, where, value); |
| } |
| |
| static __always_inline |
| void pci_write_config16(pci_devfn_t dev, unsigned int where, uint16_t value) |
| { |
| pci_mmio_write_config16(dev, where, value); |
| } |
| |
| static __always_inline |
| void pci_write_config32(pci_devfn_t dev, unsigned int where, uint32_t value) |
| { |
| pci_mmio_write_config32(dev, where, value); |
| } |
| #endif /* __SIMPLE_DEVICE__ */ |
| |
| #endif |
| |
| #endif /* _PCI_MMIO_CFG_H */ |