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_EPOW 0x1000 /* XICS_IRQ_BASE offset */ 17 #define SPAPR_IRQ_HOTPLUG 0x1001 18 #define SPAPR_IRQ_VIO 0x1100 /* 256 VIO devices */ 19 #define SPAPR_IRQ_PCI_LSI 0x1200 /* 32+ PHBs devices */ 20 21 #define SPAPR_IRQ_MSI 0x1300 /* Offset of the dynamic range covered 22 * by the bitmap allocator */ 23 24 typedef struct sPAPRMachineState sPAPRMachineState; 25 26 void spapr_irq_msi_init(sPAPRMachineState *spapr, uint32_t nr_msis); 27 int spapr_irq_msi_alloc(sPAPRMachineState *spapr, uint32_t num, bool align, 28 Error **errp); 29 void spapr_irq_msi_free(sPAPRMachineState *spapr, int irq, uint32_t num); 30 void spapr_irq_msi_reset(sPAPRMachineState *spapr); 31 32 typedef struct sPAPRIrq { 33 uint32_t nr_irqs; 34 uint32_t nr_msis; 35 36 void (*init)(sPAPRMachineState *spapr, Error **errp); 37 int (*claim)(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp); 38 void (*free)(sPAPRMachineState *spapr, int irq, int num); 39 qemu_irq (*qirq)(sPAPRMachineState *spapr, int irq); 40 void (*print_info)(sPAPRMachineState *spapr, Monitor *mon); 41 } sPAPRIrq; 42 43 extern sPAPRIrq spapr_irq_xics; 44 extern sPAPRIrq spapr_irq_xics_legacy; 45 46 int spapr_irq_claim(sPAPRMachineState *spapr, int irq, bool lsi, Error **errp); 47 void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num); 48 qemu_irq spapr_qirq(sPAPRMachineState *spapr, int irq); 49 50 /* 51 * XICS legacy routines 52 */ 53 int spapr_irq_find(sPAPRMachineState *spapr, int num, bool align, Error **errp); 54 #define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp) 55 56 #endif 57