Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | |
Patrick Rudolph | e357ac3 | 2024-02-23 09:47:24 +0100 | [diff] [blame] | 3 | #include <acpi/acpigen_pci.h> |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 4 | #include <assert.h> |
| 5 | #include <console/console.h> |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 6 | #include <device/pci.h> |
Patrick Rudolph | 40e0748 | 2024-02-23 09:23:41 +0100 | [diff] [blame] | 7 | #include <intelblocks/acpi.h> |
Patrick Rudolph | 40e0748 | 2024-02-23 09:23:41 +0100 | [diff] [blame] | 8 | #include <soc/acpi.h> |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 9 | #include <soc/chip_common.h> |
| 10 | #include <soc/soc_util.h> |
| 11 | #include <soc/util.h> |
| 12 | #include <stdlib.h> |
| 13 | |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 14 | /** |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 15 | * Find all device of a given vendor and type for the specified socket. |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 16 | * The function iterates over all PCI domains of the specified socket |
| 17 | * and matches the PCI vendor and device ID. |
| 18 | * |
| 19 | * @param socket The socket where to search for the device. |
| 20 | * @param vendor A PCI vendor ID (e.g. 0x8086 for Intel). |
| 21 | * @param device A PCI device ID. |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 22 | * @param from The device pointer to start search from. |
| 23 | * |
| 24 | * @return Pointer to the device struct. When there are multiple device |
| 25 | * instances, the caller should continue search upon a non-NULL match. |
| 26 | */ |
| 27 | struct device *dev_find_all_devices_on_socket(uint8_t socket, u16 vendor, u16 device, |
| 28 | struct device *from) |
| 29 | { |
| 30 | return dev_find_all_devices_on_stack(socket, XEONSP_STACK_MAX, vendor, device, from); |
| 31 | } |
| 32 | |
| 33 | /* |
| 34 | * Find device of a given vendor and type for the specified socket. |
| 35 | * The function will return at the 1st match. |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 36 | */ |
| 37 | struct device *dev_find_device_on_socket(uint8_t socket, u16 vendor, u16 device) |
| 38 | { |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 39 | return dev_find_all_devices_on_socket(socket, vendor, device, NULL); |
| 40 | } |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 41 | |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 42 | static int filter_device_on_stack(struct device *dev, uint8_t socket, uint8_t stack, |
| 43 | u16 vendor, u16 device) |
| 44 | { |
| 45 | struct device *domain = dev_get_pci_domain(dev); |
| 46 | if (!domain) |
| 47 | return 0; |
| 48 | if (dev->path.type != DEVICE_PATH_PCI) |
| 49 | return 0; |
| 50 | |
| 51 | union xeon_domain_path dn; |
| 52 | dn.domain_path = domain->path.domain.domain; |
| 53 | |
| 54 | if (socket != XEONSP_SOCKET_MAX && dn.socket != socket) |
| 55 | return 0; |
| 56 | if (stack != XEONSP_STACK_MAX && dn.stack != stack) |
| 57 | return 0; |
| 58 | if (vendor != XEONSP_VENDOR_MAX && dev->vendor != vendor) |
| 59 | return 0; |
| 60 | if (device != XEONSP_DEVICE_MAX && dev->device != device) |
| 61 | return 0; |
| 62 | |
| 63 | return 1; |
| 64 | }; |
| 65 | |
| 66 | /** |
| 67 | * Find all device of a given vendor and type for the specified socket and stack. |
| 68 | * |
| 69 | * @param socket The socket where to search for the device. |
| 70 | * XEONSP_SOCKET_MAX indicates any socket. |
| 71 | * @param stack The stack where to search for the device. |
| 72 | * XEONSP_STACK_MAX indicates any stack. |
| 73 | * @param vendor A PCI vendor ID (e.g. 0x8086 for Intel). |
| 74 | * XEONSP_VENDOR_MAX indicates any vendor. |
| 75 | * @param device A PCI device ID. |
| 76 | * XEONSP_DEVICE_MAX indicates any device. |
| 77 | * @param from The device pointer to start search from. |
| 78 | * |
| 79 | * @return Pointer to the device struct. When there are multiple device |
| 80 | * instances, the caller should continue search upon a non-NULL match. |
| 81 | */ |
| 82 | struct device *dev_find_all_devices_on_stack(uint8_t socket, uint8_t stack, |
| 83 | u16 vendor, u16 device, struct device *from) |
| 84 | { |
| 85 | if (!from) |
| 86 | from = all_devices; |
| 87 | else |
| 88 | from = from->next; |
| 89 | |
| 90 | while (from && (!filter_device_on_stack(from, socket, stack, |
| 91 | vendor, device))) |
| 92 | from = from->next; |
| 93 | |
| 94 | return from; |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Find all device of a given vendor and type for the specific domain |
| 99 | * Only the direct child of the input domain is iterated |
| 100 | * |
| 101 | * @param domain Pointer to the input domain |
| 102 | * @param vendor A PCI vendor ID |
| 103 | * XEONSP_VENDOR_MAX indicates any vendor |
| 104 | * @param vendor A PCI device ID |
| 105 | * XEONSP_DEVICE_MAX indicates any vendor |
| 106 | * @param from The device pointer to start search from. |
| 107 | * |
| 108 | * @return Pointer to the device struct. When there are multiple device |
| 109 | * instances, the caller should continue search upon a non-NULL match. |
| 110 | */ |
| 111 | struct device *dev_find_all_devices_on_domain(struct device *domain, u16 vendor, |
| 112 | u16 device, struct device *from) |
| 113 | { |
| 114 | struct device *dev = from; |
| 115 | while ((dev = dev_bus_each_child(domain->downstream, dev))) { |
| 116 | if (vendor != XEONSP_VENDOR_MAX && dev->vendor != vendor) |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 117 | continue; |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 118 | if (device != XEONSP_DEVICE_MAX && dev->device != device) |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 119 | continue; |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 120 | break; |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 121 | } |
| 122 | |
Shuo Liu | 7f92210 | 2024-03-04 23:59:48 +0800 | [diff] [blame] | 123 | return dev; |
Patrick Rudolph | 9fa4048 | 2024-01-18 08:55:08 +0100 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | /** |
| 127 | * Returns the socket ID where the specified device is connected to. |
| 128 | * This is an integer in the range [0, CONFIG_MAX_SOCKET). |
| 129 | * |
| 130 | * @param dev The device to look up |
| 131 | * |
| 132 | * @return Socket ID the device is attached to, negative number on error. |
| 133 | */ |
| 134 | int iio_pci_domain_socket_from_dev(struct device *dev) |
| 135 | { |
| 136 | struct device *domain; |
| 137 | union xeon_domain_path dn; |
| 138 | |
| 139 | if (dev->path.type == DEVICE_PATH_DOMAIN) |
| 140 | domain = dev; |
| 141 | else |
| 142 | domain = dev_get_pci_domain(dev); |
| 143 | |
| 144 | if (!domain) |
| 145 | return -1; |
| 146 | |
| 147 | dn.domain_path = domain->path.domain.domain; |
| 148 | |
| 149 | return dn.socket; |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Returns the stack ID where the specified device is connected to. |
| 154 | * This is an integer in the range [0, MAX_IIO_STACK). |
| 155 | * |
| 156 | * @param dev The device to look up |
| 157 | * |
| 158 | * @return Stack ID the device is attached to, negative number on error. |
| 159 | */ |
| 160 | int iio_pci_domain_stack_from_dev(struct device *dev) |
| 161 | { |
| 162 | struct device *domain; |
| 163 | union xeon_domain_path dn; |
| 164 | |
| 165 | if (dev->path.type == DEVICE_PATH_DOMAIN) |
| 166 | domain = dev; |
| 167 | else |
| 168 | domain = dev_get_pci_domain(dev); |
| 169 | |
| 170 | if (!domain) |
| 171 | return -1; |
| 172 | |
| 173 | dn.domain_path = domain->path.domain.domain; |
| 174 | |
| 175 | return dn.stack; |
| 176 | } |
| 177 | |
Shuo Liu | ec58beb | 2024-03-11 07:14:07 +0800 | [diff] [blame] | 178 | void create_domain(const union xeon_domain_path dp, struct bus *upstream, |
Patrick Rudolph | 8061957 | 2024-03-12 18:32:35 +0100 | [diff] [blame] | 179 | int bus_base, int bus_limit, const char *type, |
| 180 | struct device_operations *ops, |
| 181 | const size_t pci_segment_group) |
Shuo Liu | 255f927 | 2023-03-29 20:14:11 +0800 | [diff] [blame] | 182 | { |
Shuo Liu | a454b62 | 2024-03-07 07:38:36 +0800 | [diff] [blame] | 183 | struct device_path path; |
| 184 | init_xeon_domain_path(&path, dp.socket, dp.stack, bus_base); |
Shuo Liu | 255f927 | 2023-03-29 20:14:11 +0800 | [diff] [blame] | 185 | |
| 186 | struct device *const domain = alloc_find_dev(upstream, &path); |
| 187 | if (!domain) |
| 188 | die("%s: out of memory.\n", __func__); |
| 189 | |
Shuo Liu | a454b62 | 2024-03-07 07:38:36 +0800 | [diff] [blame] | 190 | domain->ops = ops; |
| 191 | iio_domain_set_acpi_name(domain, type); |
Shuo Liu | 255f927 | 2023-03-29 20:14:11 +0800 | [diff] [blame] | 192 | |
| 193 | struct bus *const bus = alloc_bus(domain); |
Shuo Liu | a454b62 | 2024-03-07 07:38:36 +0800 | [diff] [blame] | 194 | bus->secondary = bus_base; |
| 195 | bus->subordinate = bus_base; |
| 196 | bus->max_subordinate = bus_limit; |
Patrick Rudolph | 8061957 | 2024-03-12 18:32:35 +0100 | [diff] [blame] | 197 | bus->segment_group = pci_segment_group; |
Shuo Liu | a454b62 | 2024-03-07 07:38:36 +0800 | [diff] [blame] | 198 | } |
| 199 | |
Patrick Rudolph | 1567259 | 2024-01-18 07:57:07 +0100 | [diff] [blame] | 200 | /* Attach stack as domains */ |
Shuo Liu | 255f927 | 2023-03-29 20:14:11 +0800 | [diff] [blame] | 201 | void attach_iio_stacks(void) |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 202 | { |
Arthur Heymans | 550f55e | 2022-08-24 14:44:26 +0200 | [diff] [blame] | 203 | const IIO_UDS *hob = get_iio_uds(); |
Patrick Rudolph | 8c99ebc | 2024-01-19 17:28:47 +0100 | [diff] [blame] | 204 | union xeon_domain_path dn = { .domain_path = 0 }; |
Arthur Heymans | 550f55e | 2022-08-24 14:44:26 +0200 | [diff] [blame] | 205 | if (!hob) |
| 206 | return; |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 207 | |
Shuo Liu | 255f927 | 2023-03-29 20:14:11 +0800 | [diff] [blame] | 208 | struct bus *root_bus = dev_root.downstream; |
Patrick Rudolph | abc2744 | 2024-03-12 14:48:16 +0100 | [diff] [blame] | 209 | for (int s = 0; s < CONFIG_MAX_SOCKET; ++s) { |
| 210 | if (!soc_cpu_is_enabled(s)) |
| 211 | continue; |
Arthur Heymans | 550f55e | 2022-08-24 14:44:26 +0200 | [diff] [blame] | 212 | for (int x = 0; x < MAX_LOGIC_IIO_STACK; ++x) { |
Shuo Liu | f2daf24 | 2024-03-20 19:03:31 +0800 | [diff] [blame] | 213 | const xSTACK_RES *ri = &hob->PlatformData.IIO_resource[s].StackRes[x]; |
Patrick Rudolph | 8061957 | 2024-03-12 18:32:35 +0100 | [diff] [blame] | 214 | const size_t seg = hob->PlatformData.CpuQpiInfo[s].PcieSegment; |
| 215 | |
Arthur Heymans | 470f1d3 | 2023-08-31 18:19:09 +0200 | [diff] [blame] | 216 | if (ri->BusBase > ri->BusLimit) |
Arthur Heymans | 550f55e | 2022-08-24 14:44:26 +0200 | [diff] [blame] | 217 | continue; |
Jonathan Zhang | 532e8c0 | 2023-01-25 11:28:49 -0800 | [diff] [blame] | 218 | |
Patrick Rudolph | 8c99ebc | 2024-01-19 17:28:47 +0100 | [diff] [blame] | 219 | /* Prepare domain path */ |
| 220 | dn.socket = s; |
| 221 | dn.stack = x; |
Patrick Rudolph | 8c99ebc | 2024-01-19 17:28:47 +0100 | [diff] [blame] | 222 | |
Shuo Liu | ec58beb | 2024-03-11 07:14:07 +0800 | [diff] [blame] | 223 | create_xeonsp_domains(dn, root_bus, ri, seg); |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 224 | } |
| 225 | } |
Marc Jones | 1f50084 | 2020-10-15 14:32:51 -0600 | [diff] [blame] | 226 | } |
Shuo Liu | e0c935b | 2024-03-08 02:11:36 +0800 | [diff] [blame] | 227 | |
| 228 | bool is_pcie_domain(struct device *dev) |
| 229 | { |
| 230 | if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN)) |
| 231 | return false; |
| 232 | |
| 233 | return strstr(dev->name, DOMAIN_TYPE_PCIE); |
| 234 | } |
| 235 | |
| 236 | bool is_ioat_domain(struct device *dev) |
| 237 | { |
| 238 | if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN)) |
| 239 | return false; |
| 240 | |
| 241 | return (strstr(dev->name, DOMAIN_TYPE_CPM0) || |
| 242 | strstr(dev->name, DOMAIN_TYPE_CPM1) || |
| 243 | strstr(dev->name, DOMAIN_TYPE_DINO) || |
| 244 | strstr(dev->name, DOMAIN_TYPE_HQM0) || |
| 245 | strstr(dev->name, DOMAIN_TYPE_HQM1)); |
| 246 | } |
| 247 | |
| 248 | bool is_ubox_domain(struct device *dev) |
| 249 | { |
| 250 | if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN)) |
| 251 | return false; |
| 252 | |
| 253 | return (strstr(dev->name, DOMAIN_TYPE_UBX0) || |
| 254 | strstr(dev->name, DOMAIN_TYPE_UBX1)); |
Shuo Liu | e0c935b | 2024-03-08 02:11:36 +0800 | [diff] [blame] | 255 | } |
| 256 | |
| 257 | bool is_cxl_domain(struct device *dev) |
| 258 | { |
| 259 | if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN)) |
| 260 | return false; |
| 261 | |
| 262 | return strstr(dev->name, DOMAIN_TYPE_CXL); |
| 263 | } |