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#define SPAPR_IRQ_EPOW 0x1000 /* XICS_IRQ_BASE offset */
20#define SPAPR_IRQ_HOTPLUG 0x1001
21#define SPAPR_IRQ_VIO 0x1100 /* 256 VIO devices */
22#define SPAPR_IRQ_PCI_LSI 0x1200 /* 32+ PHBs devices */
23
24#define SPAPR_IRQ_MSI 0x1300 /* Offset of the dynamic range covered
25 * by the bitmap allocator */
26
27typedef struct SpaprMachineState SpaprMachineState;
28
29void spapr_irq_msi_init(SpaprMachineState *spapr, uint32_t nr_msis);
30int spapr_irq_msi_alloc(SpaprMachineState *spapr, uint32_t num, bool align,
31 Error **errp);
32void spapr_irq_msi_free(SpaprMachineState *spapr, int irq, uint32_t num);
33
34typedef struct SpaprIrq {
35 uint32_t nr_irqs;
36 uint32_t nr_msis;
37 uint8_t ov5;
38
39 void (*init)(SpaprMachineState *spapr, int nr_irqs, Error **errp);
40 int (*claim)(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
41 void (*free)(SpaprMachineState *spapr, int irq, int num);
42 qemu_irq (*qirq)(SpaprMachineState *spapr, int irq);
43 void (*print_info)(SpaprMachineState *spapr, Monitor *mon);
44 void (*dt_populate)(SpaprMachineState *spapr, uint32_t nr_servers,
45 void *fdt, uint32_t phandle);
46 void (*cpu_intc_create)(SpaprMachineState *spapr, PowerPCCPU *cpu,
47 Error **errp);
48 int (*post_load)(SpaprMachineState *spapr, int version_id);
49 void (*reset)(SpaprMachineState *spapr, Error **errp);
50 void (*set_irq)(void *opaque, int srcno, int val);
51 const char *(*get_nodename)(SpaprMachineState *spapr);
52 void (*init_kvm)(SpaprMachineState *spapr, Error **errp);
53} SpaprIrq;
54
55extern SpaprIrq spapr_irq_xics;
56extern SpaprIrq spapr_irq_xics_legacy;
57extern SpaprIrq spapr_irq_xive;
58extern SpaprIrq spapr_irq_dual;
59
60void spapr_irq_init(SpaprMachineState *spapr, Error **errp);
61int spapr_irq_claim(SpaprMachineState *spapr, int irq, bool lsi, Error **errp);
62void spapr_irq_free(SpaprMachineState *spapr, int irq, int num);
63qemu_irq spapr_qirq(SpaprMachineState *spapr, int irq);
64int spapr_irq_post_load(SpaprMachineState *spapr, int version_id);
65void spapr_irq_reset(SpaprMachineState *spapr, Error **errp);
66int spapr_irq_get_phandle(SpaprMachineState *spapr, void *fdt, Error **errp);
67
68/*
69 * XICS legacy routines
70 */
71int spapr_irq_find(SpaprMachineState *spapr, int num, bool align, Error **errp);
72#define spapr_irq_findone(spapr, errp) spapr_irq_find(spapr, 1, false, errp)
73
74#endif
75