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 /* 14 * IRQ range offsets per device type 15 */ 16 #define SPAPR_IRQ_IPI 0x0 17 #define SPAPR_IRQ_EPOW 0x1000 /* XICS_IRQ_BASE offset */ 18 #define SPAPR_IRQ_HOTPLUG 0x1001 19 #define SPAPR_IRQ_VIO 0x1100 /* 256 VIO devices */ 20 #define SPAPR_IRQ_PCI_LSI 0x1200 /* 32+ PHBs devices */ 21 22 #define SPAPR_IRQ_MSI 0x1300 /* Offset of the dynamic range covered 23 * by the bitmap allocator */ 24 25 typedef struct SpaprMachineState SpaprMachineState; 26 27 void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis); 28 int spapr_irq_msi_alloc(SpaprMachineState *spapr, uint32_t num, bool align, 29 Error **errp); 30 void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num); 31 void spapr_irq_msi_reset(SpaprMachineState *spapr); 32 33 typedef struct SpaprIrq { 34 uint32_t nr_irqs; 35 uint32_t nr_msis; 36 uint8_t ov5; 37 38 void (*init)(SpaprMachineState *spapr, int nr_irqs, Error **errp); 39 int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp); 40 void (*free)(SpaprMachineState *spapr, int irq, int num); 41 qemu_irq (*qirq)(SpaprMachineState *spapr, int irq); 42 void (*print_info)(SpaprMachineState *spapr, Monitor *mon); 43 void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers, 44 void *fdt, uint32_t phandle); 45 void (*cpu_intc_create)(SpaprMachineState *spapr, PowerPCCPU *cpu, 46 Error **errp); 47 int (*post_load)(SpaprMachineState *spapr, int version_id); 48 void (*reset)(SpaprMachineState *spapr, Error **errp); 49 void (*set_irq)(void *opaque, int srcno, int val); 50 const char *(*get_nodename)(SpaprMachineState *spapr); 51 } SpaprIrq; 52 53 extern SpaprIrq spapr_irq_xics; 54 extern SpaprIrq spapr_irq_xics_legacy; 55 extern SpaprIrq spapr_irq_xive; 56 extern SpaprIrq spapr_irq_dual; 57 58 void spapr_irq_init(SpaprMachineState *spapr, Error **errp); 59 int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp); 60 void spapr_irq_free(SpaprMachineState *spapr, int irq, int num); 61 qemu_irq spapr_qirq(SpaprMachineState *spapr, int irq); 62 int spapr_irq_post_load(SpaprMachineState *spapr, int version_id); 63 void spapr_irq_reset(SpaprMachineState *spapr, Error **errp); 64 int spapr_irq_get_phandle(SpaprMachineState *spapr, void *fdt, Error **errp); 65 66 /* 67 * XICS legacy routines 68 */ 69 int spapr_irq_find(SpaprMachineState *spapr, int num, bool align, Error **errp); 70 #define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) 71 72 #endif 73