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 15 /* 16 * IRQ range offsets per device type 17 */ 18 #define SPAPR_IRQ_IPI 0x0 19 20 #define SPAPR_XIRQ_BASE XICS_IRQ_BASE /* 0x1000 */ 21 #define SPAPR_IRQ_EPOW (SPAPR_XIRQ_BASE + 0x0000) 22 #define SPAPR_IRQ_HOTPLUG (SPAPR_XIRQ_BASE + 0x0001) 23 #define SPAPR_IRQ_VIO (SPAPR_XIRQ_BASE + 0x0100) /* 256 VIO devices */ 24 #define SPAPR_IRQ_PCI_LSI (SPAPR_XIRQ_BASE + 0x0200) /* 32+ PHBs devices */ 25 26 /* Offset of the dynamic range covered by the bitmap allocator */ 27 #define SPAPR_IRQ_MSI (SPAPR_XIRQ_BASE + 0x0300) 28 29 #define SPAPR_NR_XIRQS 0x1000 30 #define SPAPR_NR_MSIS (SPAPR_XIRQ_BASE + SPAPR_NR_XIRQS - SPAPR_IRQ_MSI) 31 32 typedef struct SpaprMachineState 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 #define SPAPR_INTC_CLASS(klass) \ 40 OBJECT_CLASS_CHECK(SpaprInterruptControllerClass, (klass), TYPE_SPAPR_INTC) 41 #define SPAPR_INTC_GET_CLASS(obj) \ 42 OBJECT_GET_CLASS(SpaprInterruptControllerClass, (obj), TYPE_SPAPR_INTC) 43 44 typedef struct SpaprInterruptControllerClass { 45 InterfaceClass parent; 46 47 int (*activate)(SpaprInterruptController *intc, 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 int (*claim_irq)(SpaprInterruptController *intc, int irq, bool lsi, 57 Error **errp); 58 void (*free_irq)(SpaprInterruptController *intc, int irq); 59 60 /* These methods should only be called on the active intc */ 61 void (*set_irq)(SpaprInterruptController *intc, int irq, int val); 62 } SpaprInterruptControllerClass; 63 64 void spapr_irq_update_active_intc(SpaprMachineState *spapr); 65 66 int spapr_irq_cpu_intc_create(SpaprMachineState *spapr, 67 PowerPCCPU *cpu, Error **errp); 68 69 70 void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis); 71 int spapr_irq_msi_alloc(SpaprMachineState *spapr, uint32_t num, bool align, 72 Error **errp); 73 void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num); 74 75 typedef struct SpaprIrq { 76 uint32_t nr_xirqs; 77 uint32_t nr_msis; 78 bool xics; 79 bool xive; 80 81 void (*print_info)(SpaprMachineState *spapr, Monitor *mon); 82 void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers, 83 void *fdt, uint32_t phandle); 84 int (*post_load)(SpaprMachineState *spapr, int version_id); 85 void (*reset)(SpaprMachineState *spapr, Error **errp); 86 void (*init_kvm)(SpaprMachineState *spapr, Error **errp); 87 } SpaprIrq; 88 89 extern SpaprIrq spapr_irq_xics; 90 extern SpaprIrq spapr_irq_xics_legacy; 91 extern SpaprIrq spapr_irq_xive; 92 extern SpaprIrq spapr_irq_dual; 93 94 void spapr_irq_init(SpaprMachineState *spapr, Error **errp); 95 int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp); 96 void spapr_irq_free(SpaprMachineState *spapr, int irq, int num); 97 qemu_irq spapr_qirq(SpaprMachineState *spapr, int irq); 98 int spapr_irq_post_load(SpaprMachineState *spapr, int version_id); 99 void spapr_irq_reset(SpaprMachineState *spapr, Error **errp); 100 int spapr_irq_get_phandle(SpaprMachineState *spapr, void *fdt, Error **errp); 101 102 /* 103 * XICS legacy routines 104 */ 105 int spapr_irq_find(SpaprMachineState *spapr, int num, bool align, Error **errp); 106 #define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) 107 108 #endif 109