1 /*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD 2 * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. 3 * Copyright (c) 2012 NetApp Inc. 4 * Copyright (c) 2012 Citrix Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 /* 30 * VM Bus Driver Implementation 31 */ 32 33 #include <sys/cdefs.h> 34 __FBSDID("$FreeBSD$"); 35 36 #include <sys/param.h> 37 #include <sys/bus.h> 38 #include <sys/kernel.h> 39 #include <sys/linker.h> 40 #include <sys/lock.h> 41 #include <sys/malloc.h> 42 #include <sys/module.h> 43 #include <sys/mutex.h> 44 #include <sys/sbuf.h> 45 #include <sys/smp.h> 46 #include <sys/sysctl.h> 47 #include <sys/systm.h> 48 #include <sys/taskqueue.h> 49 50 #include <vm/vm.h> 51 #include <vm/vm_param.h> 52 #include <vm/pmap.h> 53 54 #include <machine/bus.h> 55 #include <machine/metadata.h> 56 #include <machine/md_var.h> 57 #include <machine/resource.h> 58 #include <contrib/dev/acpica/include/acpi.h> 59 #include <dev/acpica/acpivar.h> 60 61 #include <dev/hyperv/include/hyperv.h> 62 #include <dev/hyperv/include/vmbus_xact.h> 63 #include <dev/hyperv/vmbus/hyperv_var.h> 64 #include <dev/hyperv/vmbus/vmbus_reg.h> 65 #include <dev/hyperv/vmbus/vmbus_var.h> 66 #include <dev/hyperv/vmbus/vmbus_chanvar.h> 67 #include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> 68 #include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> 69 #include "acpi_if.h" 70 #include "pcib_if.h" 71 #include "vmbus_if.h" 72 73 static int vmbus_handle_intr_new(void *); 74 75 void vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 76 struct trapframe *frame); 77 void vmbus_synic_setup1(void *xsc); 78 void vmbus_synic_teardown1(void); 79 int vmbus_setup_intr1(struct vmbus_softc *sc); 80 void vmbus_intr_teardown1(struct vmbus_softc *sc); 81 82 void 83 vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 84 struct trapframe *frame) 85 { 86 // do nothing for arm64, as we are using generic timer 87 return; 88 } 89 90 static int 91 vmbus_handle_intr_new(void *arg) 92 { 93 vmbus_handle_intr(NULL); 94 return (FILTER_HANDLED); 95 } 96 97 void 98 vmbus_synic_setup1(void *xsc) 99 { 100 return; 101 } 102 103 void 104 vmbus_synic_teardown1(void) 105 { 106 return; 107 } 108 109 int 110 vmbus_setup_intr1(struct vmbus_softc *sc) 111 { 112 int err; 113 struct intr_map_data_acpi *irq_data; 114 115 sc->ires = bus_alloc_resource_any(device_get_parent(sc->vmbus_dev), 116 SYS_RES_IRQ, &sc->vector, RF_ACTIVE | RF_SHAREABLE); 117 if (sc->ires == NULL) { 118 device_printf(sc->vmbus_dev, "bus_alloc_resouce_any failed\n"); 119 return (ENXIO); 120 } else { 121 device_printf(sc->vmbus_dev, "irq 0x%lx, vector %d end 0x%lx\n", 122 (uint64_t)rman_get_start(sc->ires), sc->vector, 123 (uint64_t)rman_get_end(sc->ires)); 124 } 125 err = bus_setup_intr(sc->vmbus_dev, sc->ires, INTR_TYPE_MISC, 126 vmbus_handle_intr_new, NULL, sc, &sc->icookie); 127 if (err) { 128 device_printf(sc->vmbus_dev, "failed to setup IRQ %d\n", err); 129 return (err); 130 } 131 irq_data = (struct intr_map_data_acpi *)rman_get_virtual(sc->ires); 132 device_printf(sc->vmbus_dev, "the irq %u\n", irq_data->irq); 133 sc->vmbus_idtvec = irq_data->irq; 134 return 0; 135 } 136 137 void 138 vmbus_intr_teardown1(struct vmbus_softc *sc) 139 { 140 int cpu; 141 142 sc->vmbus_idtvec = -1; 143 bus_teardown_intr(sc->vmbus_dev, sc->ires, sc->icookie); 144 145 CPU_FOREACH(cpu) { 146 if (VMBUS_PCPU_GET(sc, event_tq, cpu) != NULL) { 147 taskqueue_free(VMBUS_PCPU_GET(sc, event_tq, cpu)); 148 VMBUS_PCPU_GET(sc, event_tq, cpu) = NULL; 149 } 150 if (VMBUS_PCPU_GET(sc, message_tq, cpu) != NULL) { 151 taskqueue_drain(VMBUS_PCPU_GET(sc, message_tq, cpu), 152 VMBUS_PCPU_PTR(sc, message_task, cpu)); 153 taskqueue_free(VMBUS_PCPU_GET(sc, message_tq, cpu)); 154 VMBUS_PCPU_GET(sc, message_tq, cpu) = NULL; 155 } 156 } 157 } 158 /*- SPDX-License-Identifier: BSD-2-Clause-FreeBSD 159 * Copyright (c) 2009-2012,2016-2017, 2022 Microsoft Corp. 160 * Copyright (c) 2012 NetApp Inc. 161 * Copyright (c) 2012 Citrix Inc. 162 * All rights reserved. 163 * 164 * Redistribution and use in source and binary forms, with or without 165 * modification, are permitted provided that the following conditions 166 * are met: 167 * 1. Redistributions of source code must retain the above copyright 168 * notice unmodified, this list of conditions, and the following 169 * disclaimer. 170 * 2. Redistributions in binary form must reproduce the above copyright 171 * notice, this list of conditions and the following disclaimer in the 172 * documentation and/or other materials provided with the distribution. 173 * 174 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 175 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 176 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 177 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 178 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 179 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 180 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 181 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 182 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 183 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 184 */ 185 186 /* 187 * VM Bus Driver Implementation 188 */ 189 190 #include <sys/cdefs.h> 191 __FBSDID("$FreeBSD$"); 192 193 #include <sys/param.h> 194 #include <sys/bus.h> 195 #include <sys/kernel.h> 196 #include <sys/linker.h> 197 #include <sys/lock.h> 198 #include <sys/malloc.h> 199 #include <sys/module.h> 200 #include <sys/mutex.h> 201 #include <sys/sbuf.h> 202 #include <sys/smp.h> 203 #include <sys/sysctl.h> 204 #include <sys/systm.h> 205 #include <sys/taskqueue.h> 206 207 #include <vm/vm.h> 208 #include <vm/vm_param.h> 209 #include <vm/pmap.h> 210 211 #include <machine/bus.h> 212 #include <machine/metadata.h> 213 #include <machine/md_var.h> 214 #include <machine/resource.h> 215 #include <contrib/dev/acpica/include/acpi.h> 216 #include <dev/acpica/acpivar.h> 217 218 #include <dev/hyperv/include/hyperv.h> 219 #include <dev/hyperv/include/vmbus_xact.h> 220 #include <dev/hyperv/vmbus/hyperv_var.h> 221 #include <dev/hyperv/vmbus/vmbus_reg.h> 222 #include <dev/hyperv/vmbus/vmbus_var.h> 223 #include <dev/hyperv/vmbus/vmbus_chanvar.h> 224 #include <dev/hyperv/vmbus/aarch64/hyperv_machdep.h> 225 #include <dev/hyperv/vmbus/aarch64/hyperv_reg.h> 226 #include "acpi_if.h" 227 #include "pcib_if.h" 228 #include "vmbus_if.h" 229 230 static int vmbus_handle_intr_new(void *); 231 232 void vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 233 struct trapframe *frame); 234 void vmbus_synic_setup1(void *xsc); 235 void vmbus_synic_teardown1(void); 236 int vmbus_setup_intr1(struct vmbus_softc *sc); 237 void vmbus_intr_teardown1(struct vmbus_softc *sc); 238 239 void 240 vmbus_handle_timer_intr1(struct vmbus_message *msg_base, 241 struct trapframe *frame) 242 { 243 // do nothing for arm64, as we are using generic timer 244 return; 245 } 246 247 static int 248 vmbus_handle_intr_new(void *arg) 249 { 250 vmbus_handle_intr(NULL); 251 return (FILTER_HANDLED); 252 } 253 254 void 255 vmbus_synic_setup1(void *xsc) 256 { 257 return; 258 } 259 260 void 261 vmbus_synic_teardown1(void) 262 { 263 return; 264 } 265 266 int 267 vmbus_setup_intr1(struct vmbus_softc *sc) 268 { 269 int err; 270 struct intr_map_data_acpi *irq_data; 271 272 sc->ires = bus_alloc_resource_any(device_get_parent(sc->vmbus_dev), 273 SYS_RES_IRQ, &sc->vector, RF_ACTIVE | RF_SHAREABLE); 274 if (sc->ires == NULL) { 275 device_printf(sc->vmbus_dev, "bus_alloc_resouce_any failed\n"); 276 return (ENXIO); 277 } else { 278 device_printf(sc->vmbus_dev, "irq 0x%lx, vector %d end 0x%lx\n", 279 (uint64_t)rman_get_start(sc->ires), sc->vector, 280 (uint64_t)rman_get_end(sc->ires)); 281 } 282 err = bus_setup_intr(sc->vmbus_dev, sc->ires, INTR_TYPE_MISC, 283 vmbus_handle_intr_new, NULL, sc, &sc->icookie); 284 if (err) { 285 device_printf(sc->vmbus_dev, "failed to setup IRQ %d\n", err); 286 return (err); 287 } 288 irq_data = (struct intr_map_data_acpi *)rman_get_virtual(sc->ires); 289 device_printf(sc->vmbus_dev, "the irq %u\n", irq_data->irq); 290 sc->vmbus_idtvec = irq_data->irq; 291 return 0; 292 } 293 294 void 295 vmbus_intr_teardown1(struct vmbus_softc *sc) 296 { 297 int cpu; 298 299 sc->vmbus_idtvec = -1; 300 bus_teardown_intr(sc->vmbus_dev, sc->ires, sc->icookie); 301 302 CPU_FOREACH(cpu) { 303 if (VMBUS_PCPU_GET(sc, event_tq, cpu) != NULL) { 304 taskqueue_free(VMBUS_PCPU_GET(sc, event_tq, cpu)); 305 VMBUS_PCPU_GET(sc, event_tq, cpu) = NULL; 306 } 307 if (VMBUS_PCPU_GET(sc, message_tq, cpu) != NULL) { 308 taskqueue_drain(VMBUS_PCPU_GET(sc, message_tq, cpu), 309 VMBUS_PCPU_PTR(sc, message_task, cpu)); 310 taskqueue_free(VMBUS_PCPU_GET(sc, message_tq, cpu)); 311 VMBUS_PCPU_GET(sc, message_tq, cpu) = NULL; 312 } 313 } 314 } 315