block/export: Add query-block-exports
[qemu.git] / include / hw / ppc / spapr_irq.h
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