1b5cec4c5SDavid Gibson /* 2b5cec4c5SDavid Gibson * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator 3b5cec4c5SDavid Gibson * 4b5cec4c5SDavid Gibson * PAPR Virtualized Interrupt System, aka ICS/ICP aka xics 5b5cec4c5SDavid Gibson * 6b5cec4c5SDavid Gibson * Copyright (c) 2010,2011 David Gibson, IBM Corporation. 7b5cec4c5SDavid Gibson * 8b5cec4c5SDavid Gibson * Permission is hereby granted, free of charge, to any person obtaining a copy 9b5cec4c5SDavid Gibson * of this software and associated documentation files (the "Software"), to deal 10b5cec4c5SDavid Gibson * in the Software without restriction, including without limitation the rights 11b5cec4c5SDavid Gibson * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12b5cec4c5SDavid Gibson * copies of the Software, and to permit persons to whom the Software is 13b5cec4c5SDavid Gibson * furnished to do so, subject to the following conditions: 14b5cec4c5SDavid Gibson * 15b5cec4c5SDavid Gibson * The above copyright notice and this permission notice shall be included in 16b5cec4c5SDavid Gibson * all copies or substantial portions of the Software. 17b5cec4c5SDavid Gibson * 18b5cec4c5SDavid Gibson * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19b5cec4c5SDavid Gibson * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20b5cec4c5SDavid Gibson * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21b5cec4c5SDavid Gibson * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22b5cec4c5SDavid Gibson * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23b5cec4c5SDavid Gibson * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24b5cec4c5SDavid Gibson * THE SOFTWARE. 25b5cec4c5SDavid Gibson * 26b5cec4c5SDavid Gibson */ 27b5cec4c5SDavid Gibson 280d75590dSPeter Maydell #include "qemu/osdep.h" 29da34e65cSMarkus Armbruster #include "qapi/error.h" 304771d756SPaolo Bonzini #include "qemu-common.h" 314771d756SPaolo Bonzini #include "cpu.h" 3283c9f4caSPaolo Bonzini #include "hw/hw.h" 33500efa23SDavid Gibson #include "trace.h" 345d87e4b7SBenjamin Herrenschmidt #include "qemu/timer.h" 350d09e41aSPaolo Bonzini #include "hw/ppc/xics.h" 369ccff2a4SAlexey Kardashevskiy #include "qemu/error-report.h" 375a3d7b23SAlexey Kardashevskiy #include "qapi/visitor.h" 38b1fc72f0SBenjamin Herrenschmidt #include "monitor/monitor.h" 39b1fc72f0SBenjamin Herrenschmidt #include "hw/intc/intc.h" 40b5cec4c5SDavid Gibson 419c7027baSBenjamin Herrenschmidt int xics_get_cpu_index_by_dt_id(int cpu_dt_id) 420f20ba62SAlexey Kardashevskiy { 430f20ba62SAlexey Kardashevskiy PowerPCCPU *cpu = ppc_get_vcpu_by_dt_id(cpu_dt_id); 440f20ba62SAlexey Kardashevskiy 450f20ba62SAlexey Kardashevskiy if (cpu) { 460f20ba62SAlexey Kardashevskiy return cpu->parent_obj.cpu_index; 470f20ba62SAlexey Kardashevskiy } 480f20ba62SAlexey Kardashevskiy 490f20ba62SAlexey Kardashevskiy return -1; 500f20ba62SAlexey Kardashevskiy } 510f20ba62SAlexey Kardashevskiy 5227f24582SBenjamin Herrenschmidt void xics_cpu_destroy(XICSState *xics, PowerPCCPU *cpu) 534a4b344cSBharata B Rao { 544a4b344cSBharata B Rao CPUState *cs = CPU(cpu); 5527f24582SBenjamin Herrenschmidt ICPState *ss = &xics->ss[cs->cpu_index]; 564a4b344cSBharata B Rao 5727f24582SBenjamin Herrenschmidt assert(cs->cpu_index < xics->nr_servers); 584a4b344cSBharata B Rao assert(cs == ss->cs); 594a4b344cSBharata B Rao 604a4b344cSBharata B Rao ss->output = NULL; 614a4b344cSBharata B Rao ss->cs = NULL; 624a4b344cSBharata B Rao } 634a4b344cSBharata B Rao 6427f24582SBenjamin Herrenschmidt void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu) 658ffe04edSAlexey Kardashevskiy { 668ffe04edSAlexey Kardashevskiy CPUState *cs = CPU(cpu); 678ffe04edSAlexey Kardashevskiy CPUPPCState *env = &cpu->env; 6827f24582SBenjamin Herrenschmidt ICPState *ss = &xics->ss[cs->cpu_index]; 6927f24582SBenjamin Herrenschmidt XICSStateClass *info = XICS_COMMON_GET_CLASS(xics); 708ffe04edSAlexey Kardashevskiy 7127f24582SBenjamin Herrenschmidt assert(cs->cpu_index < xics->nr_servers); 728ffe04edSAlexey Kardashevskiy 734a4b344cSBharata B Rao ss->cs = cs; 744a4b344cSBharata B Rao 755eb92cccSAlexey Kardashevskiy if (info->cpu_setup) { 7627f24582SBenjamin Herrenschmidt info->cpu_setup(xics, cpu); 775eb92cccSAlexey Kardashevskiy } 785eb92cccSAlexey Kardashevskiy 798ffe04edSAlexey Kardashevskiy switch (PPC_INPUT(env)) { 808ffe04edSAlexey Kardashevskiy case PPC_FLAGS_INPUT_POWER7: 818ffe04edSAlexey Kardashevskiy ss->output = env->irq_inputs[POWER7_INPUT_INT]; 828ffe04edSAlexey Kardashevskiy break; 838ffe04edSAlexey Kardashevskiy 848ffe04edSAlexey Kardashevskiy case PPC_FLAGS_INPUT_970: 858ffe04edSAlexey Kardashevskiy ss->output = env->irq_inputs[PPC970_INPUT_INT]; 868ffe04edSAlexey Kardashevskiy break; 878ffe04edSAlexey Kardashevskiy 888ffe04edSAlexey Kardashevskiy default: 899ccff2a4SAlexey Kardashevskiy error_report("XICS interrupt controller does not support this CPU " 909ccff2a4SAlexey Kardashevskiy "bus model"); 918ffe04edSAlexey Kardashevskiy abort(); 928ffe04edSAlexey Kardashevskiy } 938ffe04edSAlexey Kardashevskiy } 948ffe04edSAlexey Kardashevskiy 95b9038e78SCédric Le Goater static void icp_pic_print_info(InterruptStatsProvider *obj, 96b1fc72f0SBenjamin Herrenschmidt Monitor *mon) 97b1fc72f0SBenjamin Herrenschmidt { 98b9038e78SCédric Le Goater ICPState *icp = ICP(obj); 99b9038e78SCédric Le Goater int cpu_index = icp->cs ? icp->cs->cpu_index : -1; 100b1fc72f0SBenjamin Herrenschmidt 101b1fc72f0SBenjamin Herrenschmidt if (!icp->output) { 102b9038e78SCédric Le Goater return; 103b1fc72f0SBenjamin Herrenschmidt } 104b1fc72f0SBenjamin Herrenschmidt monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n", 105b9038e78SCédric Le Goater cpu_index, icp->xirr, icp->xirr_owner, 106b1fc72f0SBenjamin Herrenschmidt icp->pending_priority, icp->mfrr); 107b1fc72f0SBenjamin Herrenschmidt } 108b1fc72f0SBenjamin Herrenschmidt 109b9038e78SCédric Le Goater static void ics_simple_pic_print_info(InterruptStatsProvider *obj, 110b9038e78SCédric Le Goater Monitor *mon) 111b9038e78SCédric Le Goater { 112b9038e78SCédric Le Goater ICSState *ics = ICS_SIMPLE(obj); 113b9038e78SCédric Le Goater uint32_t i; 114b9038e78SCédric Le Goater 115b1fc72f0SBenjamin Herrenschmidt monitor_printf(mon, "ICS %4x..%4x %p\n", 116b1fc72f0SBenjamin Herrenschmidt ics->offset, ics->offset + ics->nr_irqs - 1, ics); 117b1fc72f0SBenjamin Herrenschmidt 118b1fc72f0SBenjamin Herrenschmidt if (!ics->irqs) { 119b9038e78SCédric Le Goater return; 120b1fc72f0SBenjamin Herrenschmidt } 121b1fc72f0SBenjamin Herrenschmidt 122b1fc72f0SBenjamin Herrenschmidt for (i = 0; i < ics->nr_irqs; i++) { 123b1fc72f0SBenjamin Herrenschmidt ICSIRQState *irq = ics->irqs + i; 124b1fc72f0SBenjamin Herrenschmidt 125b1fc72f0SBenjamin Herrenschmidt if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) { 126b1fc72f0SBenjamin Herrenschmidt continue; 127b1fc72f0SBenjamin Herrenschmidt } 128b1fc72f0SBenjamin Herrenschmidt monitor_printf(mon, " %4x %s %02x %02x\n", 129b1fc72f0SBenjamin Herrenschmidt ics->offset + i, 130b1fc72f0SBenjamin Herrenschmidt (irq->flags & XICS_FLAGS_IRQ_LSI) ? 131b1fc72f0SBenjamin Herrenschmidt "LSI" : "MSI", 132b1fc72f0SBenjamin Herrenschmidt irq->priority, irq->status); 133b1fc72f0SBenjamin Herrenschmidt } 134b1fc72f0SBenjamin Herrenschmidt } 135b1fc72f0SBenjamin Herrenschmidt 1365a3d7b23SAlexey Kardashevskiy /* 1375a3d7b23SAlexey Kardashevskiy * XICS Common class - parent for emulated XICS and KVM-XICS 1385a3d7b23SAlexey Kardashevskiy */ 1395a3d7b23SAlexey Kardashevskiy static void xics_common_reset(DeviceState *d) 1408ffe04edSAlexey Kardashevskiy { 14127f24582SBenjamin Herrenschmidt XICSState *xics = XICS_COMMON(d); 142cc706a53SBenjamin Herrenschmidt ICSState *ics; 1438ffe04edSAlexey Kardashevskiy int i; 1448ffe04edSAlexey Kardashevskiy 14527f24582SBenjamin Herrenschmidt for (i = 0; i < xics->nr_servers; i++) { 14627f24582SBenjamin Herrenschmidt device_reset(DEVICE(&xics->ss[i])); 1478ffe04edSAlexey Kardashevskiy } 1488ffe04edSAlexey Kardashevskiy 149cc706a53SBenjamin Herrenschmidt QLIST_FOREACH(ics, &xics->ics, list) { 150cc706a53SBenjamin Herrenschmidt device_reset(DEVICE(ics)); 151cc706a53SBenjamin Herrenschmidt } 1528ffe04edSAlexey Kardashevskiy } 1538ffe04edSAlexey Kardashevskiy 1545a3d7b23SAlexey Kardashevskiy static void xics_common_initfn(Object *obj) 1555a3d7b23SAlexey Kardashevskiy { 156cc706a53SBenjamin Herrenschmidt XICSState *xics = XICS_COMMON(obj); 157cc706a53SBenjamin Herrenschmidt 158cc706a53SBenjamin Herrenschmidt QLIST_INIT(&xics->ics); 1595a3d7b23SAlexey Kardashevskiy } 1605a3d7b23SAlexey Kardashevskiy 1615a3d7b23SAlexey Kardashevskiy static void xics_common_class_init(ObjectClass *oc, void *data) 1625a3d7b23SAlexey Kardashevskiy { 1635a3d7b23SAlexey Kardashevskiy DeviceClass *dc = DEVICE_CLASS(oc); 1645a3d7b23SAlexey Kardashevskiy 1655a3d7b23SAlexey Kardashevskiy dc->reset = xics_common_reset; 1665a3d7b23SAlexey Kardashevskiy } 1675a3d7b23SAlexey Kardashevskiy 1685a3d7b23SAlexey Kardashevskiy static const TypeInfo xics_common_info = { 1695a3d7b23SAlexey Kardashevskiy .name = TYPE_XICS_COMMON, 170738d5db8SDavid Gibson .parent = TYPE_DEVICE, 1715a3d7b23SAlexey Kardashevskiy .instance_size = sizeof(XICSState), 1725a3d7b23SAlexey Kardashevskiy .class_size = sizeof(XICSStateClass), 1735a3d7b23SAlexey Kardashevskiy .instance_init = xics_common_initfn, 1745a3d7b23SAlexey Kardashevskiy .class_init = xics_common_class_init, 1755a3d7b23SAlexey Kardashevskiy }; 1765a3d7b23SAlexey Kardashevskiy 177b5cec4c5SDavid Gibson /* 178b5cec4c5SDavid Gibson * ICP: Presentation layer 179b5cec4c5SDavid Gibson */ 180b5cec4c5SDavid Gibson 181b5cec4c5SDavid Gibson #define XISR_MASK 0x00ffffff 182b5cec4c5SDavid Gibson #define CPPR_MASK 0xff000000 183b5cec4c5SDavid Gibson 184b5cec4c5SDavid Gibson #define XISR(ss) (((ss)->xirr) & XISR_MASK) 185b5cec4c5SDavid Gibson #define CPPR(ss) (((ss)->xirr) >> 24) 186b5cec4c5SDavid Gibson 187d4d7a59aSBenjamin Herrenschmidt static void ics_reject(ICSState *ics, uint32_t nr) 188d4d7a59aSBenjamin Herrenschmidt { 189d4d7a59aSBenjamin Herrenschmidt ICSStateClass *k = ICS_BASE_GET_CLASS(ics); 190d4d7a59aSBenjamin Herrenschmidt 191d4d7a59aSBenjamin Herrenschmidt if (k->reject) { 192d4d7a59aSBenjamin Herrenschmidt k->reject(ics, nr); 193d4d7a59aSBenjamin Herrenschmidt } 194d4d7a59aSBenjamin Herrenschmidt } 195d4d7a59aSBenjamin Herrenschmidt 1967844e12bSCédric Le Goater void ics_resend(ICSState *ics) 197d4d7a59aSBenjamin Herrenschmidt { 198d4d7a59aSBenjamin Herrenschmidt ICSStateClass *k = ICS_BASE_GET_CLASS(ics); 199d4d7a59aSBenjamin Herrenschmidt 200d4d7a59aSBenjamin Herrenschmidt if (k->resend) { 201d4d7a59aSBenjamin Herrenschmidt k->resend(ics); 202d4d7a59aSBenjamin Herrenschmidt } 203d4d7a59aSBenjamin Herrenschmidt } 204d4d7a59aSBenjamin Herrenschmidt 205d4d7a59aSBenjamin Herrenschmidt static void ics_eoi(ICSState *ics, int nr) 206d4d7a59aSBenjamin Herrenschmidt { 207d4d7a59aSBenjamin Herrenschmidt ICSStateClass *k = ICS_BASE_GET_CLASS(ics); 208d4d7a59aSBenjamin Herrenschmidt 209d4d7a59aSBenjamin Herrenschmidt if (k->eoi) { 210d4d7a59aSBenjamin Herrenschmidt k->eoi(ics, nr); 211d4d7a59aSBenjamin Herrenschmidt } 212d4d7a59aSBenjamin Herrenschmidt } 213b5cec4c5SDavid Gibson 214cc706a53SBenjamin Herrenschmidt static void icp_check_ipi(ICPState *ss) 215b5cec4c5SDavid Gibson { 216b5cec4c5SDavid Gibson if (XISR(ss) && (ss->pending_priority <= ss->mfrr)) { 217b5cec4c5SDavid Gibson return; 218b5cec4c5SDavid Gibson } 219b5cec4c5SDavid Gibson 220cc706a53SBenjamin Herrenschmidt trace_xics_icp_check_ipi(ss->cs->cpu_index, ss->mfrr); 221500efa23SDavid Gibson 222cc706a53SBenjamin Herrenschmidt if (XISR(ss) && ss->xirr_owner) { 223cc706a53SBenjamin Herrenschmidt ics_reject(ss->xirr_owner, XISR(ss)); 224b5cec4c5SDavid Gibson } 225b5cec4c5SDavid Gibson 226b5cec4c5SDavid Gibson ss->xirr = (ss->xirr & ~XISR_MASK) | XICS_IPI; 227b5cec4c5SDavid Gibson ss->pending_priority = ss->mfrr; 228cc706a53SBenjamin Herrenschmidt ss->xirr_owner = NULL; 229b5cec4c5SDavid Gibson qemu_irq_raise(ss->output); 230b5cec4c5SDavid Gibson } 231b5cec4c5SDavid Gibson 232e3403258SCédric Le Goater static void icp_resend(ICPState *ss) 233b5cec4c5SDavid Gibson { 234*2cd908d0SCédric Le Goater XICSFabric *xi = ss->xics; 235*2cd908d0SCédric Le Goater XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi); 236b5cec4c5SDavid Gibson 237b5cec4c5SDavid Gibson if (ss->mfrr < CPPR(ss)) { 238cc706a53SBenjamin Herrenschmidt icp_check_ipi(ss); 239b5cec4c5SDavid Gibson } 240*2cd908d0SCédric Le Goater 241*2cd908d0SCédric Le Goater xic->ics_resend(xi); 242b5cec4c5SDavid Gibson } 243b5cec4c5SDavid Gibson 244e3403258SCédric Le Goater void icp_set_cppr(ICPState *ss, uint8_t cppr) 245b5cec4c5SDavid Gibson { 246b5cec4c5SDavid Gibson uint8_t old_cppr; 247b5cec4c5SDavid Gibson uint32_t old_xisr; 248b5cec4c5SDavid Gibson 249b5cec4c5SDavid Gibson old_cppr = CPPR(ss); 250b5cec4c5SDavid Gibson ss->xirr = (ss->xirr & ~CPPR_MASK) | (cppr << 24); 251b5cec4c5SDavid Gibson 252b5cec4c5SDavid Gibson if (cppr < old_cppr) { 253b5cec4c5SDavid Gibson if (XISR(ss) && (cppr <= ss->pending_priority)) { 254b5cec4c5SDavid Gibson old_xisr = XISR(ss); 255b5cec4c5SDavid Gibson ss->xirr &= ~XISR_MASK; /* Clear XISR */ 256e03c902cSDavid Gibson ss->pending_priority = 0xff; 257b5cec4c5SDavid Gibson qemu_irq_lower(ss->output); 258cc706a53SBenjamin Herrenschmidt if (ss->xirr_owner) { 259cc706a53SBenjamin Herrenschmidt ics_reject(ss->xirr_owner, old_xisr); 260cc706a53SBenjamin Herrenschmidt ss->xirr_owner = NULL; 261cc706a53SBenjamin Herrenschmidt } 262b5cec4c5SDavid Gibson } 263b5cec4c5SDavid Gibson } else { 264b5cec4c5SDavid Gibson if (!XISR(ss)) { 265e3403258SCédric Le Goater icp_resend(ss); 266b5cec4c5SDavid Gibson } 267b5cec4c5SDavid Gibson } 268b5cec4c5SDavid Gibson } 269b5cec4c5SDavid Gibson 270e3403258SCédric Le Goater void icp_set_mfrr(ICPState *ss, uint8_t mfrr) 271b5cec4c5SDavid Gibson { 272b5cec4c5SDavid Gibson ss->mfrr = mfrr; 273b5cec4c5SDavid Gibson if (mfrr < CPPR(ss)) { 274cc706a53SBenjamin Herrenschmidt icp_check_ipi(ss); 275b5cec4c5SDavid Gibson } 276b5cec4c5SDavid Gibson } 277b5cec4c5SDavid Gibson 2789c7027baSBenjamin Herrenschmidt uint32_t icp_accept(ICPState *ss) 279b5cec4c5SDavid Gibson { 280500efa23SDavid Gibson uint32_t xirr = ss->xirr; 281b5cec4c5SDavid Gibson 282b5cec4c5SDavid Gibson qemu_irq_lower(ss->output); 283b5cec4c5SDavid Gibson ss->xirr = ss->pending_priority << 24; 284e03c902cSDavid Gibson ss->pending_priority = 0xff; 285cc706a53SBenjamin Herrenschmidt ss->xirr_owner = NULL; 286500efa23SDavid Gibson 287500efa23SDavid Gibson trace_xics_icp_accept(xirr, ss->xirr); 288500efa23SDavid Gibson 289b5cec4c5SDavid Gibson return xirr; 290b5cec4c5SDavid Gibson } 291b5cec4c5SDavid Gibson 2921cbd2220SBenjamin Herrenschmidt uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr) 2931cbd2220SBenjamin Herrenschmidt { 2941cbd2220SBenjamin Herrenschmidt if (mfrr) { 2951cbd2220SBenjamin Herrenschmidt *mfrr = ss->mfrr; 2961cbd2220SBenjamin Herrenschmidt } 2971cbd2220SBenjamin Herrenschmidt return ss->xirr; 2981cbd2220SBenjamin Herrenschmidt } 2991cbd2220SBenjamin Herrenschmidt 300e3403258SCédric Le Goater void icp_eoi(ICPState *ss, uint32_t xirr) 301b5cec4c5SDavid Gibson { 302*2cd908d0SCédric Le Goater XICSFabric *xi = ss->xics; 303*2cd908d0SCédric Le Goater XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi); 304cc706a53SBenjamin Herrenschmidt ICSState *ics; 305cc706a53SBenjamin Herrenschmidt uint32_t irq; 306b5cec4c5SDavid Gibson 307b5cec4c5SDavid Gibson /* Send EOI -> ICS */ 308b5cec4c5SDavid Gibson ss->xirr = (ss->xirr & ~CPPR_MASK) | (xirr & CPPR_MASK); 309e3403258SCédric Le Goater trace_xics_icp_eoi(ss->cs->cpu_index, xirr, ss->xirr); 310cc706a53SBenjamin Herrenschmidt irq = xirr & XISR_MASK; 311*2cd908d0SCédric Le Goater 312*2cd908d0SCédric Le Goater ics = xic->ics_get(xi, irq); 313*2cd908d0SCédric Le Goater if (ics) { 314cc706a53SBenjamin Herrenschmidt ics_eoi(ics, irq); 315cc706a53SBenjamin Herrenschmidt } 316b5cec4c5SDavid Gibson if (!XISR(ss)) { 317e3403258SCédric Le Goater icp_resend(ss); 318b5cec4c5SDavid Gibson } 319b5cec4c5SDavid Gibson } 320b5cec4c5SDavid Gibson 321cc706a53SBenjamin Herrenschmidt static void icp_irq(ICSState *ics, int server, int nr, uint8_t priority) 322b5cec4c5SDavid Gibson { 323cc706a53SBenjamin Herrenschmidt XICSState *xics = ics->xics; 32427f24582SBenjamin Herrenschmidt ICPState *ss = xics->ss + server; 325b5cec4c5SDavid Gibson 326500efa23SDavid Gibson trace_xics_icp_irq(server, nr, priority); 327500efa23SDavid Gibson 328b5cec4c5SDavid Gibson if ((priority >= CPPR(ss)) 329b5cec4c5SDavid Gibson || (XISR(ss) && (ss->pending_priority <= priority))) { 330cc706a53SBenjamin Herrenschmidt ics_reject(ics, nr); 331b5cec4c5SDavid Gibson } else { 332cc706a53SBenjamin Herrenschmidt if (XISR(ss) && ss->xirr_owner) { 333cc706a53SBenjamin Herrenschmidt ics_reject(ss->xirr_owner, XISR(ss)); 334cc706a53SBenjamin Herrenschmidt ss->xirr_owner = NULL; 335b5cec4c5SDavid Gibson } 336b5cec4c5SDavid Gibson ss->xirr = (ss->xirr & ~XISR_MASK) | (nr & XISR_MASK); 337cc706a53SBenjamin Herrenschmidt ss->xirr_owner = ics; 338b5cec4c5SDavid Gibson ss->pending_priority = priority; 339500efa23SDavid Gibson trace_xics_icp_raise(ss->xirr, ss->pending_priority); 340b5cec4c5SDavid Gibson qemu_irq_raise(ss->output); 341b5cec4c5SDavid Gibson } 342b5cec4c5SDavid Gibson } 343b5cec4c5SDavid Gibson 344d1b5682dSAlexey Kardashevskiy static void icp_dispatch_pre_save(void *opaque) 345d1b5682dSAlexey Kardashevskiy { 346d1b5682dSAlexey Kardashevskiy ICPState *ss = opaque; 347d1b5682dSAlexey Kardashevskiy ICPStateClass *info = ICP_GET_CLASS(ss); 348d1b5682dSAlexey Kardashevskiy 349d1b5682dSAlexey Kardashevskiy if (info->pre_save) { 350d1b5682dSAlexey Kardashevskiy info->pre_save(ss); 351d1b5682dSAlexey Kardashevskiy } 352d1b5682dSAlexey Kardashevskiy } 353d1b5682dSAlexey Kardashevskiy 354d1b5682dSAlexey Kardashevskiy static int icp_dispatch_post_load(void *opaque, int version_id) 355d1b5682dSAlexey Kardashevskiy { 356d1b5682dSAlexey Kardashevskiy ICPState *ss = opaque; 357d1b5682dSAlexey Kardashevskiy ICPStateClass *info = ICP_GET_CLASS(ss); 358d1b5682dSAlexey Kardashevskiy 359d1b5682dSAlexey Kardashevskiy if (info->post_load) { 360d1b5682dSAlexey Kardashevskiy return info->post_load(ss, version_id); 361d1b5682dSAlexey Kardashevskiy } 362d1b5682dSAlexey Kardashevskiy 363d1b5682dSAlexey Kardashevskiy return 0; 364d1b5682dSAlexey Kardashevskiy } 365d1b5682dSAlexey Kardashevskiy 366c04d6cfaSAnthony Liguori static const VMStateDescription vmstate_icp_server = { 367c04d6cfaSAnthony Liguori .name = "icp/server", 368c04d6cfaSAnthony Liguori .version_id = 1, 369c04d6cfaSAnthony Liguori .minimum_version_id = 1, 370d1b5682dSAlexey Kardashevskiy .pre_save = icp_dispatch_pre_save, 371d1b5682dSAlexey Kardashevskiy .post_load = icp_dispatch_post_load, 372c04d6cfaSAnthony Liguori .fields = (VMStateField[]) { 373c04d6cfaSAnthony Liguori /* Sanity check */ 374c04d6cfaSAnthony Liguori VMSTATE_UINT32(xirr, ICPState), 375c04d6cfaSAnthony Liguori VMSTATE_UINT8(pending_priority, ICPState), 376c04d6cfaSAnthony Liguori VMSTATE_UINT8(mfrr, ICPState), 377c04d6cfaSAnthony Liguori VMSTATE_END_OF_LIST() 378c04d6cfaSAnthony Liguori }, 379c04d6cfaSAnthony Liguori }; 380c04d6cfaSAnthony Liguori 381c04d6cfaSAnthony Liguori static void icp_reset(DeviceState *dev) 382c04d6cfaSAnthony Liguori { 383c04d6cfaSAnthony Liguori ICPState *icp = ICP(dev); 384c04d6cfaSAnthony Liguori 385c04d6cfaSAnthony Liguori icp->xirr = 0; 386c04d6cfaSAnthony Liguori icp->pending_priority = 0xff; 387c04d6cfaSAnthony Liguori icp->mfrr = 0xff; 388c04d6cfaSAnthony Liguori 389c04d6cfaSAnthony Liguori /* Make all outputs are deasserted */ 390c04d6cfaSAnthony Liguori qemu_set_irq(icp->output, 0); 391c04d6cfaSAnthony Liguori } 392c04d6cfaSAnthony Liguori 393817bb6a4SCédric Le Goater static void icp_realize(DeviceState *dev, Error **errp) 394817bb6a4SCédric Le Goater { 395817bb6a4SCédric Le Goater ICPState *icp = ICP(dev); 396817bb6a4SCédric Le Goater Object *obj; 397817bb6a4SCédric Le Goater Error *err = NULL; 398817bb6a4SCédric Le Goater 399817bb6a4SCédric Le Goater obj = object_property_get_link(OBJECT(dev), "xics", &err); 400817bb6a4SCédric Le Goater if (!obj) { 401817bb6a4SCédric Le Goater error_setg(errp, "%s: required link 'xics' not found: %s", 402817bb6a4SCédric Le Goater __func__, error_get_pretty(err)); 403817bb6a4SCédric Le Goater return; 404817bb6a4SCédric Le Goater } 405817bb6a4SCédric Le Goater 406*2cd908d0SCédric Le Goater icp->xics = XICS_FABRIC(obj); 407817bb6a4SCédric Le Goater } 408817bb6a4SCédric Le Goater 409817bb6a4SCédric Le Goater 410c04d6cfaSAnthony Liguori static void icp_class_init(ObjectClass *klass, void *data) 411c04d6cfaSAnthony Liguori { 412c04d6cfaSAnthony Liguori DeviceClass *dc = DEVICE_CLASS(klass); 413b9038e78SCédric Le Goater InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(klass); 414c04d6cfaSAnthony Liguori 415c04d6cfaSAnthony Liguori dc->reset = icp_reset; 416c04d6cfaSAnthony Liguori dc->vmsd = &vmstate_icp_server; 417817bb6a4SCédric Le Goater dc->realize = icp_realize; 418b9038e78SCédric Le Goater ic->print_info = icp_pic_print_info; 419c04d6cfaSAnthony Liguori } 420c04d6cfaSAnthony Liguori 421456df19cSAlexey Kardashevskiy static const TypeInfo icp_info = { 422c04d6cfaSAnthony Liguori .name = TYPE_ICP, 423c04d6cfaSAnthony Liguori .parent = TYPE_DEVICE, 424c04d6cfaSAnthony Liguori .instance_size = sizeof(ICPState), 425c04d6cfaSAnthony Liguori .class_init = icp_class_init, 426d1b5682dSAlexey Kardashevskiy .class_size = sizeof(ICPStateClass), 427b9038e78SCédric Le Goater .interfaces = (InterfaceInfo[]) { 428b9038e78SCédric Le Goater { TYPE_INTERRUPT_STATS_PROVIDER }, 429b9038e78SCédric Le Goater { } 430b9038e78SCédric Le Goater }, 431c04d6cfaSAnthony Liguori }; 432c04d6cfaSAnthony Liguori 433b5cec4c5SDavid Gibson /* 434b5cec4c5SDavid Gibson * ICS: Source layer 435b5cec4c5SDavid Gibson */ 436d4d7a59aSBenjamin Herrenschmidt static void ics_simple_resend_msi(ICSState *ics, int srcno) 437b5cec4c5SDavid Gibson { 438c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 439d07fee7eSDavid Gibson 440d07fee7eSDavid Gibson /* FIXME: filter by server#? */ 44198ca8c02SDavid Gibson if (irq->status & XICS_STATUS_REJECTED) { 44298ca8c02SDavid Gibson irq->status &= ~XICS_STATUS_REJECTED; 443d07fee7eSDavid Gibson if (irq->priority != 0xff) { 444cc706a53SBenjamin Herrenschmidt icp_irq(ics, irq->server, srcno + ics->offset, irq->priority); 445d07fee7eSDavid Gibson } 446d07fee7eSDavid Gibson } 447d07fee7eSDavid Gibson } 448d07fee7eSDavid Gibson 449d4d7a59aSBenjamin Herrenschmidt static void ics_simple_resend_lsi(ICSState *ics, int srcno) 450d07fee7eSDavid Gibson { 451c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 452d07fee7eSDavid Gibson 45398ca8c02SDavid Gibson if ((irq->priority != 0xff) 45498ca8c02SDavid Gibson && (irq->status & XICS_STATUS_ASSERTED) 45598ca8c02SDavid Gibson && !(irq->status & XICS_STATUS_SENT)) { 45698ca8c02SDavid Gibson irq->status |= XICS_STATUS_SENT; 457cc706a53SBenjamin Herrenschmidt icp_irq(ics, irq->server, srcno + ics->offset, irq->priority); 458d07fee7eSDavid Gibson } 459d07fee7eSDavid Gibson } 460d07fee7eSDavid Gibson 461d4d7a59aSBenjamin Herrenschmidt static void ics_simple_set_irq_msi(ICSState *ics, int srcno, int val) 462d07fee7eSDavid Gibson { 463c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 464b5cec4c5SDavid Gibson 465d4d7a59aSBenjamin Herrenschmidt trace_xics_ics_simple_set_irq_msi(srcno, srcno + ics->offset); 466500efa23SDavid Gibson 467b5cec4c5SDavid Gibson if (val) { 468b5cec4c5SDavid Gibson if (irq->priority == 0xff) { 46998ca8c02SDavid Gibson irq->status |= XICS_STATUS_MASKED_PENDING; 470500efa23SDavid Gibson trace_xics_masked_pending(); 471b5cec4c5SDavid Gibson } else { 472cc706a53SBenjamin Herrenschmidt icp_irq(ics, irq->server, srcno + ics->offset, irq->priority); 473b5cec4c5SDavid Gibson } 474b5cec4c5SDavid Gibson } 475b5cec4c5SDavid Gibson } 476b5cec4c5SDavid Gibson 477d4d7a59aSBenjamin Herrenschmidt static void ics_simple_set_irq_lsi(ICSState *ics, int srcno, int val) 478d07fee7eSDavid Gibson { 479c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 480d07fee7eSDavid Gibson 481d4d7a59aSBenjamin Herrenschmidt trace_xics_ics_simple_set_irq_lsi(srcno, srcno + ics->offset); 48298ca8c02SDavid Gibson if (val) { 48398ca8c02SDavid Gibson irq->status |= XICS_STATUS_ASSERTED; 48498ca8c02SDavid Gibson } else { 48598ca8c02SDavid Gibson irq->status &= ~XICS_STATUS_ASSERTED; 48698ca8c02SDavid Gibson } 487d4d7a59aSBenjamin Herrenschmidt ics_simple_resend_lsi(ics, srcno); 488d07fee7eSDavid Gibson } 489d07fee7eSDavid Gibson 490d4d7a59aSBenjamin Herrenschmidt static void ics_simple_set_irq(void *opaque, int srcno, int val) 491d07fee7eSDavid Gibson { 492c04d6cfaSAnthony Liguori ICSState *ics = (ICSState *)opaque; 493d07fee7eSDavid Gibson 4944af88944SAlexey Kardashevskiy if (ics->irqs[srcno].flags & XICS_FLAGS_IRQ_LSI) { 495d4d7a59aSBenjamin Herrenschmidt ics_simple_set_irq_lsi(ics, srcno, val); 496d07fee7eSDavid Gibson } else { 497d4d7a59aSBenjamin Herrenschmidt ics_simple_set_irq_msi(ics, srcno, val); 498d07fee7eSDavid Gibson } 499d07fee7eSDavid Gibson } 500d07fee7eSDavid Gibson 501d4d7a59aSBenjamin Herrenschmidt static void ics_simple_write_xive_msi(ICSState *ics, int srcno) 502d07fee7eSDavid Gibson { 503c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 504d07fee7eSDavid Gibson 50598ca8c02SDavid Gibson if (!(irq->status & XICS_STATUS_MASKED_PENDING) 50698ca8c02SDavid Gibson || (irq->priority == 0xff)) { 507d07fee7eSDavid Gibson return; 508d07fee7eSDavid Gibson } 509d07fee7eSDavid Gibson 51098ca8c02SDavid Gibson irq->status &= ~XICS_STATUS_MASKED_PENDING; 511cc706a53SBenjamin Herrenschmidt icp_irq(ics, irq->server, srcno + ics->offset, irq->priority); 512d07fee7eSDavid Gibson } 513d07fee7eSDavid Gibson 514d4d7a59aSBenjamin Herrenschmidt static void ics_simple_write_xive_lsi(ICSState *ics, int srcno) 515d07fee7eSDavid Gibson { 516d4d7a59aSBenjamin Herrenschmidt ics_simple_resend_lsi(ics, srcno); 517d07fee7eSDavid Gibson } 518d07fee7eSDavid Gibson 519d4d7a59aSBenjamin Herrenschmidt void ics_simple_write_xive(ICSState *ics, int srcno, int server, 5203fe719f4SDavid Gibson uint8_t priority, uint8_t saved_priority) 521d07fee7eSDavid Gibson { 522c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 523d07fee7eSDavid Gibson 524d07fee7eSDavid Gibson irq->server = server; 525d07fee7eSDavid Gibson irq->priority = priority; 5263fe719f4SDavid Gibson irq->saved_priority = saved_priority; 527d07fee7eSDavid Gibson 528d4d7a59aSBenjamin Herrenschmidt trace_xics_ics_simple_write_xive(ics->offset + srcno, srcno, server, 529d4d7a59aSBenjamin Herrenschmidt priority); 530500efa23SDavid Gibson 5314af88944SAlexey Kardashevskiy if (ics->irqs[srcno].flags & XICS_FLAGS_IRQ_LSI) { 532d4d7a59aSBenjamin Herrenschmidt ics_simple_write_xive_lsi(ics, srcno); 533d07fee7eSDavid Gibson } else { 534d4d7a59aSBenjamin Herrenschmidt ics_simple_write_xive_msi(ics, srcno); 535d07fee7eSDavid Gibson } 536d07fee7eSDavid Gibson } 537d07fee7eSDavid Gibson 538d4d7a59aSBenjamin Herrenschmidt static void ics_simple_reject(ICSState *ics, uint32_t nr) 539b5cec4c5SDavid Gibson { 540c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + nr - ics->offset; 541b5cec4c5SDavid Gibson 542d4d7a59aSBenjamin Herrenschmidt trace_xics_ics_simple_reject(nr, nr - ics->offset); 543056b9775SNikunj A Dadhania if (irq->flags & XICS_FLAGS_IRQ_MSI) { 544056b9775SNikunj A Dadhania irq->status |= XICS_STATUS_REJECTED; 545056b9775SNikunj A Dadhania } else if (irq->flags & XICS_FLAGS_IRQ_LSI) { 546056b9775SNikunj A Dadhania irq->status &= ~XICS_STATUS_SENT; 547056b9775SNikunj A Dadhania } 548b5cec4c5SDavid Gibson } 549b5cec4c5SDavid Gibson 550d4d7a59aSBenjamin Herrenschmidt static void ics_simple_resend(ICSState *ics) 551b5cec4c5SDavid Gibson { 552b5cec4c5SDavid Gibson int i; 553b5cec4c5SDavid Gibson 554b5cec4c5SDavid Gibson for (i = 0; i < ics->nr_irqs; i++) { 555b5cec4c5SDavid Gibson /* FIXME: filter by server#? */ 5564af88944SAlexey Kardashevskiy if (ics->irqs[i].flags & XICS_FLAGS_IRQ_LSI) { 557d4d7a59aSBenjamin Herrenschmidt ics_simple_resend_lsi(ics, i); 558d07fee7eSDavid Gibson } else { 559d4d7a59aSBenjamin Herrenschmidt ics_simple_resend_msi(ics, i); 560b5cec4c5SDavid Gibson } 561b5cec4c5SDavid Gibson } 562b5cec4c5SDavid Gibson } 563b5cec4c5SDavid Gibson 564d4d7a59aSBenjamin Herrenschmidt static void ics_simple_eoi(ICSState *ics, uint32_t nr) 565b5cec4c5SDavid Gibson { 566d07fee7eSDavid Gibson int srcno = nr - ics->offset; 567c04d6cfaSAnthony Liguori ICSIRQState *irq = ics->irqs + srcno; 568d07fee7eSDavid Gibson 569d4d7a59aSBenjamin Herrenschmidt trace_xics_ics_simple_eoi(nr); 570500efa23SDavid Gibson 5714af88944SAlexey Kardashevskiy if (ics->irqs[srcno].flags & XICS_FLAGS_IRQ_LSI) { 57298ca8c02SDavid Gibson irq->status &= ~XICS_STATUS_SENT; 573d07fee7eSDavid Gibson } 574b5cec4c5SDavid Gibson } 575b5cec4c5SDavid Gibson 576d4d7a59aSBenjamin Herrenschmidt static void ics_simple_reset(DeviceState *dev) 577c04d6cfaSAnthony Liguori { 578d4d7a59aSBenjamin Herrenschmidt ICSState *ics = ICS_SIMPLE(dev); 579c04d6cfaSAnthony Liguori int i; 580a7e519a8SAlexey Kardashevskiy uint8_t flags[ics->nr_irqs]; 581a7e519a8SAlexey Kardashevskiy 582a7e519a8SAlexey Kardashevskiy for (i = 0; i < ics->nr_irqs; i++) { 583a7e519a8SAlexey Kardashevskiy flags[i] = ics->irqs[i].flags; 584a7e519a8SAlexey Kardashevskiy } 585c04d6cfaSAnthony Liguori 586c04d6cfaSAnthony Liguori memset(ics->irqs, 0, sizeof(ICSIRQState) * ics->nr_irqs); 587a7e519a8SAlexey Kardashevskiy 588c04d6cfaSAnthony Liguori for (i = 0; i < ics->nr_irqs; i++) { 589c04d6cfaSAnthony Liguori ics->irqs[i].priority = 0xff; 590c04d6cfaSAnthony Liguori ics->irqs[i].saved_priority = 0xff; 591a7e519a8SAlexey Kardashevskiy ics->irqs[i].flags = flags[i]; 592c04d6cfaSAnthony Liguori } 593c04d6cfaSAnthony Liguori } 594c04d6cfaSAnthony Liguori 595d4d7a59aSBenjamin Herrenschmidt static int ics_simple_post_load(ICSState *ics, int version_id) 596c04d6cfaSAnthony Liguori { 597c04d6cfaSAnthony Liguori int i; 598c04d6cfaSAnthony Liguori 59927f24582SBenjamin Herrenschmidt for (i = 0; i < ics->xics->nr_servers; i++) { 600e3403258SCédric Le Goater icp_resend(&ics->xics->ss[i]); 601c04d6cfaSAnthony Liguori } 602c04d6cfaSAnthony Liguori 603c04d6cfaSAnthony Liguori return 0; 604c04d6cfaSAnthony Liguori } 605c04d6cfaSAnthony Liguori 606d4d7a59aSBenjamin Herrenschmidt static void ics_simple_dispatch_pre_save(void *opaque) 607d1b5682dSAlexey Kardashevskiy { 608d1b5682dSAlexey Kardashevskiy ICSState *ics = opaque; 609d4d7a59aSBenjamin Herrenschmidt ICSStateClass *info = ICS_BASE_GET_CLASS(ics); 610d1b5682dSAlexey Kardashevskiy 611d1b5682dSAlexey Kardashevskiy if (info->pre_save) { 612d1b5682dSAlexey Kardashevskiy info->pre_save(ics); 613d1b5682dSAlexey Kardashevskiy } 614d1b5682dSAlexey Kardashevskiy } 615d1b5682dSAlexey Kardashevskiy 616d4d7a59aSBenjamin Herrenschmidt static int ics_simple_dispatch_post_load(void *opaque, int version_id) 617d1b5682dSAlexey Kardashevskiy { 618d1b5682dSAlexey Kardashevskiy ICSState *ics = opaque; 619d4d7a59aSBenjamin Herrenschmidt ICSStateClass *info = ICS_BASE_GET_CLASS(ics); 620d1b5682dSAlexey Kardashevskiy 621d1b5682dSAlexey Kardashevskiy if (info->post_load) { 622d1b5682dSAlexey Kardashevskiy return info->post_load(ics, version_id); 623d1b5682dSAlexey Kardashevskiy } 624d1b5682dSAlexey Kardashevskiy 625d1b5682dSAlexey Kardashevskiy return 0; 626d1b5682dSAlexey Kardashevskiy } 627d1b5682dSAlexey Kardashevskiy 628d4d7a59aSBenjamin Herrenschmidt static const VMStateDescription vmstate_ics_simple_irq = { 629c04d6cfaSAnthony Liguori .name = "ics/irq", 6304af88944SAlexey Kardashevskiy .version_id = 2, 631c04d6cfaSAnthony Liguori .minimum_version_id = 1, 632c04d6cfaSAnthony Liguori .fields = (VMStateField[]) { 633c04d6cfaSAnthony Liguori VMSTATE_UINT32(server, ICSIRQState), 634c04d6cfaSAnthony Liguori VMSTATE_UINT8(priority, ICSIRQState), 635c04d6cfaSAnthony Liguori VMSTATE_UINT8(saved_priority, ICSIRQState), 636c04d6cfaSAnthony Liguori VMSTATE_UINT8(status, ICSIRQState), 6374af88944SAlexey Kardashevskiy VMSTATE_UINT8(flags, ICSIRQState), 638c04d6cfaSAnthony Liguori VMSTATE_END_OF_LIST() 639c04d6cfaSAnthony Liguori }, 640c04d6cfaSAnthony Liguori }; 641c04d6cfaSAnthony Liguori 642d4d7a59aSBenjamin Herrenschmidt static const VMStateDescription vmstate_ics_simple = { 643c04d6cfaSAnthony Liguori .name = "ics", 644c04d6cfaSAnthony Liguori .version_id = 1, 645c04d6cfaSAnthony Liguori .minimum_version_id = 1, 646d4d7a59aSBenjamin Herrenschmidt .pre_save = ics_simple_dispatch_pre_save, 647d4d7a59aSBenjamin Herrenschmidt .post_load = ics_simple_dispatch_post_load, 648c04d6cfaSAnthony Liguori .fields = (VMStateField[]) { 649c04d6cfaSAnthony Liguori /* Sanity check */ 650c04d6cfaSAnthony Liguori VMSTATE_UINT32_EQUAL(nr_irqs, ICSState), 651c04d6cfaSAnthony Liguori 652c04d6cfaSAnthony Liguori VMSTATE_STRUCT_VARRAY_POINTER_UINT32(irqs, ICSState, nr_irqs, 653d4d7a59aSBenjamin Herrenschmidt vmstate_ics_simple_irq, 654d4d7a59aSBenjamin Herrenschmidt ICSIRQState), 655c04d6cfaSAnthony Liguori VMSTATE_END_OF_LIST() 656c04d6cfaSAnthony Liguori }, 657c04d6cfaSAnthony Liguori }; 658c04d6cfaSAnthony Liguori 659d4d7a59aSBenjamin Herrenschmidt static void ics_simple_initfn(Object *obj) 6605a3d7b23SAlexey Kardashevskiy { 661d4d7a59aSBenjamin Herrenschmidt ICSState *ics = ICS_SIMPLE(obj); 6625a3d7b23SAlexey Kardashevskiy 6635a3d7b23SAlexey Kardashevskiy ics->offset = XICS_IRQ_BASE; 6645a3d7b23SAlexey Kardashevskiy } 6655a3d7b23SAlexey Kardashevskiy 666d4d7a59aSBenjamin Herrenschmidt static void ics_simple_realize(DeviceState *dev, Error **errp) 667c04d6cfaSAnthony Liguori { 668d4d7a59aSBenjamin Herrenschmidt ICSState *ics = ICS_SIMPLE(dev); 669c04d6cfaSAnthony Liguori 670b45ff2d9SAlexey Kardashevskiy if (!ics->nr_irqs) { 671b45ff2d9SAlexey Kardashevskiy error_setg(errp, "Number of interrupts needs to be greater 0"); 672b45ff2d9SAlexey Kardashevskiy return; 673b45ff2d9SAlexey Kardashevskiy } 674c04d6cfaSAnthony Liguori ics->irqs = g_malloc0(ics->nr_irqs * sizeof(ICSIRQState)); 675d4d7a59aSBenjamin Herrenschmidt ics->qirqs = qemu_allocate_irqs(ics_simple_set_irq, ics, ics->nr_irqs); 676c04d6cfaSAnthony Liguori } 677c04d6cfaSAnthony Liguori 6784e4169f7SCédric Le Goater static Property ics_simple_properties[] = { 6794e4169f7SCédric Le Goater DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0), 6804e4169f7SCédric Le Goater DEFINE_PROP_END_OF_LIST(), 6814e4169f7SCédric Le Goater }; 6824e4169f7SCédric Le Goater 683d4d7a59aSBenjamin Herrenschmidt static void ics_simple_class_init(ObjectClass *klass, void *data) 684c04d6cfaSAnthony Liguori { 685c04d6cfaSAnthony Liguori DeviceClass *dc = DEVICE_CLASS(klass); 686d4d7a59aSBenjamin Herrenschmidt ICSStateClass *isc = ICS_BASE_CLASS(klass); 687b9038e78SCédric Le Goater InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(klass); 688c04d6cfaSAnthony Liguori 6894e4169f7SCédric Le Goater isc->realize = ics_simple_realize; 6904e4169f7SCédric Le Goater dc->props = ics_simple_properties; 691d4d7a59aSBenjamin Herrenschmidt dc->vmsd = &vmstate_ics_simple; 692d4d7a59aSBenjamin Herrenschmidt dc->reset = ics_simple_reset; 693d4d7a59aSBenjamin Herrenschmidt isc->post_load = ics_simple_post_load; 694d4d7a59aSBenjamin Herrenschmidt isc->reject = ics_simple_reject; 695d4d7a59aSBenjamin Herrenschmidt isc->resend = ics_simple_resend; 696d4d7a59aSBenjamin Herrenschmidt isc->eoi = ics_simple_eoi; 697b9038e78SCédric Le Goater ic->print_info = ics_simple_pic_print_info; 698c04d6cfaSAnthony Liguori } 699c04d6cfaSAnthony Liguori 700d4d7a59aSBenjamin Herrenschmidt static const TypeInfo ics_simple_info = { 701d4d7a59aSBenjamin Herrenschmidt .name = TYPE_ICS_SIMPLE, 702d4d7a59aSBenjamin Herrenschmidt .parent = TYPE_ICS_BASE, 703c04d6cfaSAnthony Liguori .instance_size = sizeof(ICSState), 704d4d7a59aSBenjamin Herrenschmidt .class_init = ics_simple_class_init, 705d1b5682dSAlexey Kardashevskiy .class_size = sizeof(ICSStateClass), 706d4d7a59aSBenjamin Herrenschmidt .instance_init = ics_simple_initfn, 707b9038e78SCédric Le Goater .interfaces = (InterfaceInfo[]) { 708b9038e78SCédric Le Goater { TYPE_INTERRUPT_STATS_PROVIDER }, 709b9038e78SCédric Le Goater { } 710b9038e78SCédric Le Goater }, 711d4d7a59aSBenjamin Herrenschmidt }; 712d4d7a59aSBenjamin Herrenschmidt 7134e4169f7SCédric Le Goater static void ics_base_realize(DeviceState *dev, Error **errp) 7144e4169f7SCédric Le Goater { 7154e4169f7SCédric Le Goater ICSStateClass *icsc = ICS_BASE_GET_CLASS(dev); 7164e4169f7SCédric Le Goater ICSState *ics = ICS_BASE(dev); 7174e4169f7SCédric Le Goater Object *obj; 7184e4169f7SCédric Le Goater Error *err = NULL; 7194e4169f7SCédric Le Goater 7204e4169f7SCédric Le Goater obj = object_property_get_link(OBJECT(dev), "xics", &err); 7214e4169f7SCédric Le Goater if (!obj) { 7224e4169f7SCédric Le Goater error_setg(errp, "%s: required link 'xics' not found: %s", 7234e4169f7SCédric Le Goater __func__, error_get_pretty(err)); 7244e4169f7SCédric Le Goater return; 7254e4169f7SCédric Le Goater } 7264e4169f7SCédric Le Goater ics->xics = XICS_COMMON(obj); 7274e4169f7SCédric Le Goater 7284e4169f7SCédric Le Goater 7294e4169f7SCédric Le Goater if (icsc->realize) { 7304e4169f7SCédric Le Goater icsc->realize(dev, errp); 7314e4169f7SCédric Le Goater } 7324e4169f7SCédric Le Goater } 7334e4169f7SCédric Le Goater 7344e4169f7SCédric Le Goater static void ics_base_class_init(ObjectClass *klass, void *data) 7354e4169f7SCédric Le Goater { 7364e4169f7SCédric Le Goater DeviceClass *dc = DEVICE_CLASS(klass); 7374e4169f7SCédric Le Goater 7384e4169f7SCédric Le Goater dc->realize = ics_base_realize; 7394e4169f7SCédric Le Goater } 7404e4169f7SCédric Le Goater 741d4d7a59aSBenjamin Herrenschmidt static const TypeInfo ics_base_info = { 742d4d7a59aSBenjamin Herrenschmidt .name = TYPE_ICS_BASE, 743d4d7a59aSBenjamin Herrenschmidt .parent = TYPE_DEVICE, 744d4d7a59aSBenjamin Herrenschmidt .abstract = true, 745d4d7a59aSBenjamin Herrenschmidt .instance_size = sizeof(ICSState), 7464e4169f7SCédric Le Goater .class_init = ics_base_class_init, 747d4d7a59aSBenjamin Herrenschmidt .class_size = sizeof(ICSStateClass), 748c04d6cfaSAnthony Liguori }; 749c04d6cfaSAnthony Liguori 75051b18005SCédric Le Goater static const TypeInfo xics_fabric_info = { 75151b18005SCédric Le Goater .name = TYPE_XICS_FABRIC, 75251b18005SCédric Le Goater .parent = TYPE_INTERFACE, 75351b18005SCédric Le Goater .class_size = sizeof(XICSFabricClass), 75451b18005SCédric Le Goater }; 75551b18005SCédric Le Goater 756b5cec4c5SDavid Gibson /* 757b5cec4c5SDavid Gibson * Exported functions 758b5cec4c5SDavid Gibson */ 759cc706a53SBenjamin Herrenschmidt ICSState *xics_find_source(XICSState *xics, int irq) 760641c3493SAlexey Kardashevskiy { 761cc706a53SBenjamin Herrenschmidt ICSState *ics; 762641c3493SAlexey Kardashevskiy 763cc706a53SBenjamin Herrenschmidt QLIST_FOREACH(ics, &xics->ics, list) { 764641c3493SAlexey Kardashevskiy if (ics_valid_irq(ics, irq)) { 765cc706a53SBenjamin Herrenschmidt return ics; 766641c3493SAlexey Kardashevskiy } 767641c3493SAlexey Kardashevskiy } 768cc706a53SBenjamin Herrenschmidt return NULL; 769641c3493SAlexey Kardashevskiy } 770b5cec4c5SDavid Gibson 771f7759e43SCédric Le Goater qemu_irq xics_get_qirq(XICSFabric *xi, int irq) 772b5cec4c5SDavid Gibson { 773f7759e43SCédric Le Goater XICSFabricClass *xic = XICS_FABRIC_GET_CLASS(xi); 774f7759e43SCédric Le Goater ICSState *ics = xic->ics_get(xi, irq); 775641c3493SAlexey Kardashevskiy 776cc706a53SBenjamin Herrenschmidt if (ics) { 777641c3493SAlexey Kardashevskiy return ics->qirqs[irq - ics->offset]; 778b5cec4c5SDavid Gibson } 779b5cec4c5SDavid Gibson 780641c3493SAlexey Kardashevskiy return NULL; 781a307d594SAlexey Kardashevskiy } 782a307d594SAlexey Kardashevskiy 7839c7027baSBenjamin Herrenschmidt void ics_set_irq_type(ICSState *ics, int srcno, bool lsi) 7844af88944SAlexey Kardashevskiy { 7854af88944SAlexey Kardashevskiy assert(!(ics->irqs[srcno].flags & XICS_FLAGS_IRQ_MASK)); 7864af88944SAlexey Kardashevskiy 7874af88944SAlexey Kardashevskiy ics->irqs[srcno].flags |= 7884af88944SAlexey Kardashevskiy lsi ? XICS_FLAGS_IRQ_LSI : XICS_FLAGS_IRQ_MSI; 7894af88944SAlexey Kardashevskiy } 7904af88944SAlexey Kardashevskiy 791c04d6cfaSAnthony Liguori static void xics_register_types(void) 792c04d6cfaSAnthony Liguori { 7935a3d7b23SAlexey Kardashevskiy type_register_static(&xics_common_info); 794d4d7a59aSBenjamin Herrenschmidt type_register_static(&ics_simple_info); 795d4d7a59aSBenjamin Herrenschmidt type_register_static(&ics_base_info); 796c04d6cfaSAnthony Liguori type_register_static(&icp_info); 79751b18005SCédric Le Goater type_register_static(&xics_fabric_info); 798c04d6cfaSAnthony Liguori } 799c04d6cfaSAnthony Liguori 800c04d6cfaSAnthony Liguori type_init(xics_register_types) 801