1 /* 2 * QEMU PowerPC sPAPR IRQ backend definitions 3 * 4 * Copyright (c) 2018, IBM Corporation. 5 * 6 * This code is licensed under the GPL version 2 or later. See the 7 * COPYING file in the top-level directory. 8 */ 9 10 #ifndef HW_SPAPR_IRQ_H 11 #define HW_SPAPR_IRQ_H 12 13 #include "target/ppc/cpu-qom.h" 14 #include "qom/object.h" 15 16 /* 17 * IRQ range offsets per device type 18 */ 19 #define SPAPR_IRQ_IPI 0x0 20 21 #define SPAPR_XIRQ_BASE XICS_IRQ_BASE /* 0x1000 */ 22 #define SPAPR_IRQ_EPOW (SPAPR_XIRQ_BASE + 0x0000) 23 #define SPAPR_IRQ_HOTPLUG (SPAPR_XIRQ_BASE + 0x0001) 24 #define SPAPR_IRQ_VIO (SPAPR_XIRQ_BASE + 0x0100) /* 256 VIO devices */ 25 #define SPAPR_IRQ_PCI_LSI (SPAPR_XIRQ_BASE + 0x0200) /* 32+ PHBs devices */ 26 27 /* Offset of the dynamic range covered by the bitmap allocator */ 28 #define SPAPR_IRQ_MSI (SPAPR_XIRQ_BASE + 0x0300) 29 30 #define SPAPR_NR_XIRQS 0x1000 31 32 struct SpaprMachineState; 33 34 typedef struct SpaprInterruptController SpaprInterruptController; 35 36 #define TYPE_SPAPR_INTC "spapr-interrupt-controller" 37 #define SPAPR_INTC(obj) \ 38 INTERFACE_CHECK(SpaprInterruptController, (obj), TYPE_SPAPR_INTC) 39 typedef struct SpaprInterruptControllerClass SpaprInterruptControllerClass; 40 DECLARE_CLASS_CHECKERS(SpaprInterruptControllerClass, SPAPR_INTC, 41 TYPE_SPAPR_INTC) 42 43 struct SpaprInterruptControllerClass { 44 InterfaceClass parent; 45 46 int (*activate)(SpaprInterruptController *intc, uint32_t nr_servers, 47 Error **errp); 48 void (*deactivate)(SpaprInterruptController *intc); 49 50 /* 51 * These methods will typically be called on all intcs, active and 52 * inactive 53 */ 54 int (*cpu_intc_create)(SpaprInterruptController *intc, 55 PowerPCCPU *cpu, Error **errp); 56 void (*cpu_intc_reset)(SpaprInterruptController *intc, PowerPCCPU *cpu); 57 void (*cpu_intc_destroy)(SpaprInterruptController *intc, PowerPCCPU *cpu); 58 int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi, 59 Error **errp); 60 void (*free_irq)(SpaprInterruptController *intc, int irq); 61 62 /* These methods should only be called on the active intc */ 63 void (*set_irq)(SpaprInterruptController *intc, int irq, int val); 64 void (*print_info)(SpaprInterruptController *intc, Monitor *mon); 65 void (*dt)(SpaprInterruptController *intc, uint32_t nr_servers, 66 void *fdt, uint32_t phandle); 67 int (*post_load)(SpaprInterruptController *intc, int version_id); 68 }; 69 70 void spapr_irq_update_active_intc(struct SpaprMachineState *spapr); 71 72 int spapr_irq_cpu_intc_create(struct SpaprMachineState *spapr, 73 PowerPCCPU *cpu, Error **errp); 74 void spapr_irq_cpu_intc_reset(struct SpaprMachineState *spapr, PowerPCCPU *cpu); 75 void spapr_irq_cpu_intc_destroy(struct SpaprMachineState *spapr, PowerPCCPU *cpu); 76 void spapr_irq_print_info(struct SpaprMachineState *spapr, Monitor *mon); 77 void spapr_irq_dt(struct SpaprMachineState *spapr, uint32_t nr_servers, 78 void *fdt, uint32_t phandle); 79 80 uint32_t spapr_irq_nr_msis(struct SpaprMachineState *spapr); 81 int spapr_irq_msi_alloc(struct SpaprMachineState *spapr, uint32_t num, bool align, 82 Error **errp); 83 void spapr_irq_msi_free(struct SpaprMachineState *spapr, int irq, uint32_t num); 84 85 typedef struct SpaprIrq { 86 bool xics; 87 bool xive; 88 } SpaprIrq; 89 90 extern SpaprIrq spapr_irq_xics; 91 extern SpaprIrq spapr_irq_xics_legacy; 92 extern SpaprIrq spapr_irq_xive; 93 extern SpaprIrq spapr_irq_dual; 94 95 void spapr_irq_init(struct SpaprMachineState *spapr, Error **errp); 96 int spapr_irq_claim(struct SpaprMachineState *spapr, int irq, bool lsi, Error **errp); 97 void spapr_irq_free(struct SpaprMachineState *spapr, int irq, int num); 98 qemu_irq spapr_qirq(struct SpaprMachineState *spapr, int irq); 99 int spapr_irq_post_load(struct SpaprMachineState *spapr, int version_id); 100 void spapr_irq_reset(struct SpaprMachineState *spapr, Error **errp); 101 int spapr_irq_get_phandle(struct SpaprMachineState *spapr, void *fdt, Error **errp); 102 103 typedef int (*SpaprInterruptControllerInitKvm)(SpaprInterruptController *, 104 uint32_t, Error **); 105 106 int spapr_irq_init_kvm(SpaprInterruptControllerInitKvm fn, 107 SpaprInterruptController *intc, 108 uint32_t nr_servers, 109 Error **errp); 110 111 /* 112 * XICS legacy routines 113 */ 114 int spapr_irq_find(struct SpaprMachineState *spapr, int num, bool align, Error **errp); 115 #define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) 116 117 #endif 118