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review.coreboot.org / coreboot / bf0970e762a6611cef06af761bc2dec068d439bb / . / src / include / device / pci_mmio_cfg.h
blob: e7019151aa8a9638deb62ea077d1b0a1fa16a642 [file] [log] [blame]
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]1/*
2 * This file is part of the coreboot project.
3 *
4 * Copyright (C) 2007-2009 coresystems GmbH
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]14 */
15
Kyösti Mälkki54d6abd2013-06-19 23:05:00 +0300[diff] [blame]16#ifndef _PCI_MMIO_CFG_H
17#define _PCI_MMIO_CFG_H
18
Kyösti Mälkki8fd78a62019-01-23 15:59:38 +0200[diff] [blame]19#include <stdint.h>
Kyösti Mälkki13f66502019-03-03 08:01:05 +0200[diff] [blame]20#include <device/mmio.h>
Kyösti Mälkki8fd78a62019-01-23 15:59:38 +0200[diff] [blame]21#include <device/pci_type.h>
Kyösti Mälkki54d6abd2013-06-19 23:05:00 +0300[diff] [blame]22
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]23
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]24static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]25uint8_t pci_mmio_read_config8(pci_devfn_t dev, uint16_t reg)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]26{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]27 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]28 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | reg);
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]29 return read8(addr);
30}
31
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]32static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]33uint16_t pci_mmio_read_config16(pci_devfn_t dev, uint16_t reg)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]34{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]35 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]36 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | (reg & ~1));
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]37 return read16(addr);
38}
39
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]40static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]41uint32_t pci_mmio_read_config32(pci_devfn_t dev, uint16_t reg)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]42{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]43 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]44 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | (reg & ~3));
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]45 return read32(addr);
46}
47
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]48static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]49void pci_mmio_write_config8(pci_devfn_t dev, uint16_t reg, uint8_t value)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]50{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]51 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]52 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | reg);
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]53 write8(addr, value);
54}
55
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]56static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]57void pci_mmio_write_config16(pci_devfn_t dev, uint16_t reg, uint16_t value)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]58{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]59 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]60 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | (reg & ~1));
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]61 write16(addr, value);
62}
63
Aaron Durbin75a62e72018-09-13 02:10:45 -0600[diff] [blame]64static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]65void pci_mmio_write_config32(pci_devfn_t dev, uint16_t reg, uint32_t value)
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]66{
Kevin Paul Herbertbde6d302014-12-24 18:43:20 -0800[diff] [blame]67 void *addr;
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]68 addr = (void *)(uintptr_t)(CONFIG_MMCONF_BASE_ADDRESS | dev | (reg & ~3));
Stefan Reinauer00636b02012-04-04 00:08:51 +0200[diff] [blame]69 write32(addr, value);
70}
71
Julius Wernercd49cce2019-03-05 16:53:33 -0800[diff] [blame]72#if CONFIG(MMCONF_SUPPORT)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]73
Kyösti Mälkki92b52962019-03-01 08:08:28 +0200[diff] [blame]74/* Avoid name collisions as different stages have different signature
75 * for these functions. The _s_ stands for simple, fundamental IO or
76 * MMIO variant.
77 */
78
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]79static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]80uint8_t pci_s_read_config8(pci_devfn_t dev, uint16_t reg)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]81{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]82 return pci_mmio_read_config8(dev, reg);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]83}
84
85static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]86uint16_t pci_s_read_config16(pci_devfn_t dev, uint16_t reg)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]87{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]88 return pci_mmio_read_config16(dev, reg);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]89}
90
91static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]92uint32_t pci_s_read_config32(pci_devfn_t dev, uint16_t reg)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]93{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]94 return pci_mmio_read_config32(dev, reg);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]95}
96
97static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]98void pci_s_write_config8(pci_devfn_t dev, uint16_t reg, uint8_t value)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]99{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]100 pci_mmio_write_config8(dev, reg, value);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]101}
102
103static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]104void pci_s_write_config16(pci_devfn_t dev, uint16_t reg, uint16_t value)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]105{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]106 pci_mmio_write_config16(dev, reg, value);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]107}
108
109static __always_inline
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]110void pci_s_write_config32(pci_devfn_t dev, uint16_t reg, uint32_t value)
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]111{
Kyösti Mälkkib603fdc2019-03-11 20:33:01 +0200[diff] [blame]112 pci_mmio_write_config32(dev, reg, value);
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]113}
Kyösti Mälkki2d8aff32019-01-23 16:44:55 +0200[diff] [blame]114
115#endif
116
Kyösti Mälkki54d6abd2013-06-19 23:05:00 +0300[diff] [blame]117#endif /* _PCI_MMIO_CFG_H */