Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 1 | /* |
Tanmay Shah | b145e12 | 2022-03-23 12:43:45 -0700 | [diff] [blame] | 2 | * Copyright (c) 2019-2022, Xilinx, Inc. All rights reserved. |
Jay Buddhabhatti | 6a44ad0 | 2023-02-28 01:23:04 -0800 | [diff] [blame] | 3 | * Copyright (c) 2022-2023, Advanced Micro Devices, Inc. All rights reserved. |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 4 | * |
| 5 | * SPDX-License-Identifier: BSD-3-Clause |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * APU specific definition of processors in the subsystem as well as functions |
| 10 | * for getting information about and changing state of the APU. |
| 11 | */ |
| 12 | |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 13 | #include <assert.h> |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 14 | #include <plat_ipi.h> |
| 15 | #include <platform_def.h> |
| 16 | #include <versal_def.h> |
| 17 | #include <lib/bakery_lock.h> |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 18 | #include <lib/mmio.h> |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 19 | #include <lib/utils.h> |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 20 | #include <drivers/arm/gicv3.h> |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 21 | #include <drivers/arm/gic_common.h> |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 22 | #include <plat/common/platform.h> |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 23 | #include "pm_api_sys.h" |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 24 | #include "pm_client.h" |
Tanmay Shah | b145e12 | 2022-03-23 12:43:45 -0700 | [diff] [blame] | 25 | #include "pm_defs.h" |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 26 | |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 27 | #define UNDEFINED_CPUID (~0) |
| 28 | |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 29 | DEFINE_BAKERY_LOCK(pm_client_secure_lock); |
| 30 | |
| 31 | static const struct pm_ipi apu_ipi = { |
Michal Simek | 3a63f05 | 2023-04-25 14:21:20 +0200 | [diff] [blame] | 32 | .local_ipi_id = IPI_LOCAL_ID, |
| 33 | .remote_ipi_id = IPI_REMOTE_ID, |
Michal Simek | 9a8da50 | 2023-04-25 14:04:02 +0200 | [diff] [blame] | 34 | .buffer_base = IPI_BUFFER_LOCAL_BASE, |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 35 | }; |
| 36 | |
| 37 | /* Order in pm_procs_all array must match cpu ids */ |
| 38 | static const struct pm_proc pm_procs_all[] = { |
| 39 | { |
| 40 | .node_id = XPM_DEVID_ACPU_0, |
| 41 | .ipi = &apu_ipi, |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 42 | .pwrdn_mask = APU_0_PWRCTL_CPUPWRDWNREQ_MASK, |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 43 | }, |
| 44 | { |
| 45 | .node_id = XPM_DEVID_ACPU_1, |
| 46 | .ipi = &apu_ipi, |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 47 | .pwrdn_mask = APU_1_PWRCTL_CPUPWRDWNREQ_MASK, |
Tejas Patel | 354fe57 | 2018-12-14 00:55:37 -0800 | [diff] [blame] | 48 | } |
| 49 | }; |
| 50 | |
| 51 | const struct pm_proc *primary_proc = &pm_procs_all[0]; |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 52 | |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 53 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 54 | * irq_to_pm_node_idx - Get PM node index corresponding to the interrupt number. |
| 55 | * @irq: Interrupt number |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 56 | * |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 57 | * Return: PM node index corresponding to the specified interrupt. |
| 58 | * |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 59 | */ |
Jay Buddhabhatti | a63b354 | 2023-02-28 02:22:02 -0800 | [diff] [blame] | 60 | enum pm_device_node_idx irq_to_pm_node_idx(uint32_t irq) |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 61 | { |
Jay Buddhabhatti | c06a271 | 2022-12-22 22:27:01 -0800 | [diff] [blame] | 62 | enum pm_device_node_idx dev_idx = XPM_NODEIDX_DEV_MIN; |
| 63 | |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 64 | assert(irq <= IRQ_MAX); |
Jay Buddhabhatti | c06a271 | 2022-12-22 22:27:01 -0800 | [diff] [blame] | 65 | |
| 66 | switch (irq) { |
| 67 | case 13: |
| 68 | dev_idx = XPM_NODEIDX_DEV_GPIO; |
| 69 | break; |
| 70 | case 14: |
| 71 | dev_idx = XPM_NODEIDX_DEV_I2C_0; |
| 72 | break; |
| 73 | case 15: |
| 74 | dev_idx = XPM_NODEIDX_DEV_I2C_1; |
| 75 | break; |
| 76 | case 16: |
| 77 | dev_idx = XPM_NODEIDX_DEV_SPI_0; |
| 78 | break; |
| 79 | case 17: |
| 80 | dev_idx = XPM_NODEIDX_DEV_SPI_1; |
| 81 | break; |
| 82 | case 18: |
| 83 | dev_idx = XPM_NODEIDX_DEV_UART_0; |
| 84 | break; |
| 85 | case 19: |
| 86 | dev_idx = XPM_NODEIDX_DEV_UART_1; |
| 87 | break; |
| 88 | case 20: |
| 89 | dev_idx = XPM_NODEIDX_DEV_CAN_FD_0; |
| 90 | break; |
| 91 | case 21: |
| 92 | dev_idx = XPM_NODEIDX_DEV_CAN_FD_1; |
| 93 | break; |
| 94 | case 22: |
| 95 | case 23: |
| 96 | case 24: |
| 97 | case 25: |
| 98 | case 26: |
| 99 | dev_idx = XPM_NODEIDX_DEV_USB_0; |
| 100 | break; |
| 101 | case 37: |
| 102 | case 38: |
| 103 | case 39: |
| 104 | dev_idx = XPM_NODEIDX_DEV_TTC_0; |
| 105 | break; |
| 106 | case 40: |
| 107 | case 41: |
| 108 | case 42: |
| 109 | dev_idx = XPM_NODEIDX_DEV_TTC_1; |
| 110 | break; |
| 111 | case 43: |
| 112 | case 44: |
| 113 | case 45: |
| 114 | dev_idx = XPM_NODEIDX_DEV_TTC_2; |
| 115 | break; |
| 116 | case 46: |
| 117 | case 47: |
| 118 | case 48: |
| 119 | dev_idx = XPM_NODEIDX_DEV_TTC_3; |
| 120 | break; |
| 121 | case 56: |
| 122 | case 57: |
| 123 | dev_idx = XPM_NODEIDX_DEV_GEM_0; |
| 124 | break; |
Jay Buddhabhatti | b31b920 | 2023-06-12 04:36:38 -0700 | [diff] [blame] | 125 | case 58: |
| 126 | case 59: |
| 127 | dev_idx = XPM_NODEIDX_DEV_GEM_1; |
| 128 | break; |
| 129 | case 60: |
| 130 | dev_idx = XPM_NODEIDX_DEV_ADMA_0; |
| 131 | break; |
| 132 | case 61: |
| 133 | dev_idx = XPM_NODEIDX_DEV_ADMA_1; |
| 134 | break; |
| 135 | case 62: |
| 136 | dev_idx = XPM_NODEIDX_DEV_ADMA_2; |
| 137 | break; |
| 138 | case 63: |
| 139 | dev_idx = XPM_NODEIDX_DEV_ADMA_3; |
| 140 | break; |
| 141 | case 64: |
| 142 | dev_idx = XPM_NODEIDX_DEV_ADMA_4; |
| 143 | break; |
| 144 | case 65: |
| 145 | dev_idx = XPM_NODEIDX_DEV_ADMA_5; |
| 146 | break; |
| 147 | case 66: |
| 148 | dev_idx = XPM_NODEIDX_DEV_ADMA_6; |
| 149 | break; |
| 150 | case 67: |
| 151 | dev_idx = XPM_NODEIDX_DEV_ADMA_7; |
| 152 | break; |
| 153 | case 74: |
| 154 | dev_idx = XPM_NODEIDX_DEV_USB_0; |
| 155 | break; |
| 156 | case 126: |
| 157 | case 127: |
| 158 | dev_idx = XPM_NODEIDX_DEV_SDIO_0; |
| 159 | break; |
| 160 | case 128: |
| 161 | case 129: |
| 162 | dev_idx = XPM_NODEIDX_DEV_SDIO_1; |
| 163 | break; |
| 164 | case 142: |
| 165 | dev_idx = XPM_NODEIDX_DEV_RTC; |
| 166 | break; |
Jay Buddhabhatti | c06a271 | 2022-12-22 22:27:01 -0800 | [diff] [blame] | 167 | default: |
| 168 | dev_idx = XPM_NODEIDX_DEV_MIN; |
| 169 | break; |
| 170 | } |
| 171 | |
| 172 | return dev_idx; |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 173 | } |
| 174 | |
| 175 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 176 | * pm_client_suspend() - Client-specific suspend actions. |
| 177 | * @proc: processor which need to suspend. |
| 178 | * @state: desired suspend state. |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 179 | * |
| 180 | * This function should contain any PU-specific actions |
| 181 | * required prior to sending suspend request to PMU |
| 182 | * Actions taken depend on the state system is suspending to. |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 183 | * |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 184 | */ |
Venkatesh Yadav Abbarapu | bde8759 | 2022-05-24 11:11:12 +0530 | [diff] [blame] | 185 | void pm_client_suspend(const struct pm_proc *proc, uint32_t state) |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 186 | { |
| 187 | bakery_lock_get(&pm_client_secure_lock); |
| 188 | |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 189 | if (state == PM_STATE_SUSPEND_TO_RAM) { |
Abhyuday Godhasara | edc38ae | 2021-08-04 23:58:46 -0700 | [diff] [blame] | 190 | pm_client_set_wakeup_sources((uint32_t)proc->node_id); |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 191 | } |
Tejas Patel | fcb7c16 | 2019-02-27 18:44:56 +0530 | [diff] [blame] | 192 | |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 193 | /* Set powerdown request */ |
| 194 | mmio_write_32(FPD_APU_PWRCTL, mmio_read_32(FPD_APU_PWRCTL) | |
Abhyuday Godhasara | 4487794 | 2021-08-05 02:59:26 -0700 | [diff] [blame] | 195 | (uint32_t)proc->pwrdn_mask); |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 196 | |
| 197 | bakery_lock_release(&pm_client_secure_lock); |
| 198 | } |
| 199 | |
| 200 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 201 | * pm_client_abort_suspend() - Client-specific abort-suspend actions. |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 202 | * |
| 203 | * This function should contain any PU-specific actions |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 204 | * required for aborting a prior suspend request. |
| 205 | * |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 206 | */ |
| 207 | void pm_client_abort_suspend(void) |
| 208 | { |
| 209 | /* Enable interrupts at processor level (for current cpu) */ |
| 210 | gicv3_cpuif_enable(plat_my_core_pos()); |
| 211 | |
| 212 | bakery_lock_get(&pm_client_secure_lock); |
| 213 | |
| 214 | /* Clear powerdown request */ |
| 215 | mmio_write_32(FPD_APU_PWRCTL, mmio_read_32(FPD_APU_PWRCTL) & |
Abhyuday Godhasara | 4487794 | 2021-08-05 02:59:26 -0700 | [diff] [blame] | 216 | ~((uint32_t)primary_proc->pwrdn_mask)); |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 217 | |
| 218 | bakery_lock_release(&pm_client_secure_lock); |
| 219 | } |
| 220 | |
| 221 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 222 | * pm_get_cpuid() - get the local cpu ID for a global node ID. |
| 223 | * @nid: node id of the processor. |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 224 | * |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 225 | * Return: the cpu ID (starting from 0) for the subsystem. |
| 226 | * |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 227 | */ |
Venkatesh Yadav Abbarapu | bde8759 | 2022-05-24 11:11:12 +0530 | [diff] [blame] | 228 | static uint32_t pm_get_cpuid(uint32_t nid) |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 229 | { |
Abhyuday Godhasara | edc38ae | 2021-08-04 23:58:46 -0700 | [diff] [blame] | 230 | for (size_t i = 0U; i < ARRAY_SIZE(pm_procs_all); i++) { |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 231 | if (pm_procs_all[i].node_id == nid) { |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 232 | return i; |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 233 | } |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 234 | } |
| 235 | return UNDEFINED_CPUID; |
| 236 | } |
| 237 | |
| 238 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 239 | * pm_client_wakeup() - Client-specific wakeup actions. |
| 240 | * @proc: Processor which need to wakeup. |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 241 | * |
| 242 | * This function should contain any PU-specific actions |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 243 | * required for waking up another APU core. |
| 244 | * |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 245 | */ |
| 246 | void pm_client_wakeup(const struct pm_proc *proc) |
| 247 | { |
Venkatesh Yadav Abbarapu | bde8759 | 2022-05-24 11:11:12 +0530 | [diff] [blame] | 248 | uint32_t cpuid = pm_get_cpuid(proc->node_id); |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 249 | |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 250 | if (cpuid == UNDEFINED_CPUID) { |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 251 | return; |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 252 | } |
Tejas Patel | 7029dd8 | 2019-02-27 18:44:54 +0530 | [diff] [blame] | 253 | |
| 254 | bakery_lock_get(&pm_client_secure_lock); |
| 255 | |
| 256 | /* clear powerdown bit for affected cpu */ |
| 257 | uint32_t val = mmio_read_32(FPD_APU_PWRCTL); |
| 258 | val &= ~(proc->pwrdn_mask); |
| 259 | mmio_write_32(FPD_APU_PWRCTL, val); |
| 260 | |
| 261 | bakery_lock_release(&pm_client_secure_lock); |
| 262 | } |
| 263 | |
| 264 | /** |
Prasad Kummari | 7d0623a | 2023-06-09 14:32:00 +0530 | [diff] [blame^] | 265 | * pm_get_proc() - returns pointer to the proc structure. |
| 266 | * @cpuid: id of the cpu whose proc struct pointer should be returned. |
| 267 | * |
| 268 | * Return: pointer to a proc structure if proc is found, otherwise NULL. |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 269 | * |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 270 | */ |
Venkatesh Yadav Abbarapu | bde8759 | 2022-05-24 11:11:12 +0530 | [diff] [blame] | 271 | const struct pm_proc *pm_get_proc(uint32_t cpuid) |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 272 | { |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 273 | if (cpuid < ARRAY_SIZE(pm_procs_all)) { |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 274 | return &pm_procs_all[cpuid]; |
Abhyuday Godhasara | ddc4662 | 2021-08-05 03:14:17 -0700 | [diff] [blame] | 275 | } |
Tejas Patel | fe0e10a | 2019-12-08 23:29:44 -0800 | [diff] [blame] | 276 | |
| 277 | return NULL; |
| 278 | } |