Angel Pons | 32859fc | 2020-04-02 23:48:27 +0200 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* This file is part of the coreboot project. */ |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 3 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 4 | #ifndef PCI_OPS_H |
| 5 | #define PCI_OPS_H |
| 6 | |
| 7 | #include <stdint.h> |
Eric Biederman | 7a5416a | 2003-06-12 19:23:51 +0000 | [diff] [blame] | 8 | #include <device/device.h> |
Kyösti Mälkki | 3e6913b | 2019-03-02 16:26:10 +0200 | [diff] [blame] | 9 | #include <device/pci_type.h> |
Eric Biederman | 018d8dd | 2004-11-04 11:04:33 +0000 | [diff] [blame] | 10 | #include <arch/pci_ops.h> |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 11 | |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 12 | void __noreturn pcidev_die(void); |
| 13 | |
Kyösti Mälkki | 34cf561 | 2019-03-11 20:34:26 +0200 | [diff] [blame] | 14 | static __always_inline pci_devfn_t pcidev_bdf(const struct device *dev) |
| 15 | { |
| 16 | return (dev->path.pci.devfn << 12) | (dev->bus->secondary << 20); |
| 17 | } |
| 18 | |
| 19 | static __always_inline pci_devfn_t pcidev_assert(const struct device *dev) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 20 | { |
| 21 | if (!dev) |
| 22 | pcidev_die(); |
Kyösti Mälkki | 34cf561 | 2019-03-11 20:34:26 +0200 | [diff] [blame] | 23 | return pcidev_bdf(dev); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 24 | } |
Kyösti Mälkki | 3f98d41 | 2019-07-29 16:38:14 +0300 | [diff] [blame] | 25 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 26 | #if defined(__SIMPLE_DEVICE__) |
| 27 | #define ENV_PCI_SIMPLE_DEVICE 1 |
| 28 | #else |
| 29 | #define ENV_PCI_SIMPLE_DEVICE 0 |
| 30 | #endif |
| 31 | |
| 32 | #if ENV_PCI_SIMPLE_DEVICE |
Kyösti Mälkki | 3f98d41 | 2019-07-29 16:38:14 +0300 | [diff] [blame] | 33 | |
| 34 | /* Avoid name collisions as different stages have different signature |
| 35 | * for these functions. The _s_ stands for simple, fundamental IO or |
| 36 | * MMIO variant. |
| 37 | */ |
| 38 | #define pci_read_config8 pci_s_read_config8 |
| 39 | #define pci_read_config16 pci_s_read_config16 |
| 40 | #define pci_read_config32 pci_s_read_config32 |
| 41 | #define pci_write_config8 pci_s_write_config8 |
| 42 | #define pci_write_config16 pci_s_write_config16 |
| 43 | #define pci_write_config32 pci_s_write_config32 |
| 44 | #else |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 45 | |
| 46 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 47 | u8 pci_read_config8(const struct device *dev, u16 reg) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 48 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 49 | return pci_s_read_config8(PCI_BDF(dev), reg); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 50 | } |
| 51 | |
| 52 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 53 | u16 pci_read_config16(const struct device *dev, u16 reg) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 54 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 55 | return pci_s_read_config16(PCI_BDF(dev), reg); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 56 | } |
| 57 | |
| 58 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 59 | u32 pci_read_config32(const struct device *dev, u16 reg) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 60 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 61 | return pci_s_read_config32(PCI_BDF(dev), reg); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 62 | } |
| 63 | |
| 64 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 65 | void pci_write_config8(const struct device *dev, u16 reg, u8 val) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 66 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 67 | pci_s_write_config8(PCI_BDF(dev), reg, val); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 68 | } |
| 69 | |
| 70 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 71 | void pci_write_config16(const struct device *dev, u16 reg, u16 val) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 72 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 73 | pci_s_write_config16(PCI_BDF(dev), reg, val); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 77 | void pci_write_config32(const struct device *dev, u16 reg, u32 val) |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 78 | { |
Kyösti Mälkki | 4663f45 | 2019-03-07 14:18:28 +0200 | [diff] [blame] | 79 | pci_s_write_config32(PCI_BDF(dev), reg, val); |
Kyösti Mälkki | e079e5c | 2019-01-23 16:15:48 +0200 | [diff] [blame] | 80 | } |
| 81 | |
Stefan Reinauer | 24d1d4b | 2013-03-21 11:51:41 -0700 | [diff] [blame] | 82 | #endif |
Stefan Reinauer | 43b29cf | 2009-03-06 19:11:52 +0000 | [diff] [blame] | 83 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 84 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 85 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 86 | void pci_or_config8(pci_devfn_t dev, u16 reg, u8 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 87 | #else |
| 88 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 89 | void pci_or_config8(const struct device *dev, u16 reg, u8 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 90 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 91 | { |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 92 | u8 value = pci_read_config8(dev, reg); |
| 93 | pci_write_config8(dev, reg, value | ormask); |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 94 | } |
| 95 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 96 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 97 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 98 | void pci_or_config16(pci_devfn_t dev, u16 reg, u16 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 99 | #else |
| 100 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 101 | void pci_or_config16(const struct device *dev, u16 reg, u16 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 102 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 103 | { |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 104 | u16 value = pci_read_config16(dev, reg); |
| 105 | pci_write_config16(dev, reg, value | ormask); |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 106 | } |
| 107 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 108 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 109 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 110 | void pci_or_config32(pci_devfn_t dev, u16 reg, u32 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 111 | #else |
| 112 | static __always_inline |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 113 | void pci_or_config32(const struct device *dev, u16 reg, u32 ormask) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 114 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 115 | { |
Kyösti Mälkki | b603fdc | 2019-03-11 20:33:01 +0200 | [diff] [blame] | 116 | u32 value = pci_read_config32(dev, reg); |
| 117 | pci_write_config32(dev, reg, value | ormask); |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 118 | } |
| 119 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 120 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 121 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 122 | void pci_update_config8(pci_devfn_t dev, u16 reg, u8 mask, u8 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 123 | #else |
| 124 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 125 | void pci_update_config8(const struct device *dev, u16 reg, u8 mask, u8 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 126 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 127 | { |
| 128 | u8 reg8; |
| 129 | |
| 130 | reg8 = pci_read_config8(dev, reg); |
| 131 | reg8 &= mask; |
| 132 | reg8 |= or; |
| 133 | pci_write_config8(dev, reg, reg8); |
| 134 | } |
| 135 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 136 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 137 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 138 | void pci_update_config16(pci_devfn_t dev, u16 reg, u16 mask, u16 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 139 | #else |
| 140 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 141 | void pci_update_config16(const struct device *dev, u16 reg, u16 mask, u16 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 142 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 143 | { |
| 144 | u16 reg16; |
| 145 | |
| 146 | reg16 = pci_read_config16(dev, reg); |
| 147 | reg16 &= mask; |
| 148 | reg16 |= or; |
| 149 | pci_write_config16(dev, reg, reg16); |
| 150 | } |
| 151 | |
Kyösti Mälkki | 9d5af5b | 2019-09-27 12:01:15 +0300 | [diff] [blame] | 152 | #if ENV_PCI_SIMPLE_DEVICE |
Aaron Durbin | 75a62e7 | 2018-09-13 02:10:45 -0600 | [diff] [blame] | 153 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 154 | void pci_update_config32(pci_devfn_t dev, u16 reg, u32 mask, u32 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 155 | #else |
| 156 | static __always_inline |
Kyösti Mälkki | 5517246 | 2019-03-07 11:13:29 +0200 | [diff] [blame] | 157 | void pci_update_config32(const struct device *dev, u16 reg, u32 mask, u32 or) |
Elyes HAOUAS | f9e47cc | 2018-12-05 11:03:36 +0100 | [diff] [blame] | 158 | #endif |
Patrick Rudolph | e56189c | 2018-04-18 10:11:59 +0200 | [diff] [blame] | 159 | { |
| 160 | u32 reg32; |
| 161 | |
| 162 | reg32 = pci_read_config32(dev, reg); |
| 163 | reg32 &= mask; |
| 164 | reg32 |= or; |
| 165 | pci_write_config32(dev, reg, reg32); |
| 166 | } |
| 167 | |
Kyösti Mälkki | 9c0e14e | 2019-01-23 16:46:35 +0200 | [diff] [blame] | 168 | u16 pci_s_find_next_capability(pci_devfn_t dev, u16 cap, u16 last); |
| 169 | u16 pci_s_find_capability(pci_devfn_t dev, u16 cap); |
| 170 | |
Kyösti Mälkki | 9c0e14e | 2019-01-23 16:46:35 +0200 | [diff] [blame] | 171 | static __always_inline |
| 172 | u16 pci_find_next_capability(const struct device *dev, u16 cap, u16 last) |
| 173 | { |
| 174 | return pci_s_find_next_capability(PCI_BDF(dev), cap, last); |
| 175 | } |
| 176 | |
| 177 | static __always_inline |
| 178 | u16 pci_find_capability(const struct device *dev, u16 cap) |
| 179 | { |
| 180 | return pci_s_find_capability(PCI_BDF(dev), cap); |
| 181 | } |
Kyösti Mälkki | 9c0e14e | 2019-01-23 16:46:35 +0200 | [diff] [blame] | 182 | |
Eric Biederman | 5899fd8 | 2003-04-24 06:25:08 +0000 | [diff] [blame] | 183 | #endif /* PCI_OPS_H */ |