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7#ifndef __LINUX_IRQCHIP_ARM_GIC_V4_H
8#define __LINUX_IRQCHIP_ARM_GIC_V4_H
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10struct its_vpe;
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16#define GICv4_ITS_LIST_MAX 16
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19struct its_vm {
20 struct fwnode_handle *fwnode;
21 struct irq_domain *domain;
22 struct page *vprop_page;
23 struct its_vpe **vpes;
24 int nr_vpes;
25 irq_hw_number_t db_lpi_base;
26 unsigned long *db_bitmap;
27 int nr_db_lpis;
28 u32 vlpi_count[GICv4_ITS_LIST_MAX];
29};
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31
32struct its_vpe {
33 struct page *vpt_page;
34 struct its_vm *its_vm;
35
36 atomic_t vlpi_count;
37
38 int irq;
39 irq_hw_number_t vpe_db_lpi;
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41 bool resident;
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43 bool ready;
44 union {
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46 struct {
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48 int vpe_proxy_event;
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50 bool idai;
51 };
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53 struct {
54 struct fwnode_handle *fwnode;
55 struct irq_domain *sgi_domain;
56 struct {
57 u8 priority;
58 bool enabled;
59 bool group;
60 } sgi_config[16];
61 atomic_t vmapp_count;
62 };
63 };
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69 raw_spinlock_t vpe_lock;
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75 u16 col_idx;
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77 u16 vpe_id;
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79 bool pending_last;
80};
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94struct its_vlpi_map {
95 struct its_vm *vm;
96 struct its_vpe *vpe;
97 u32 vintid;
98 u8 properties;
99 bool db_enabled;
100};
101
102enum its_vcpu_info_cmd_type {
103 MAP_VLPI,
104 GET_VLPI,
105 PROP_UPDATE_VLPI,
106 PROP_UPDATE_AND_INV_VLPI,
107 SCHEDULE_VPE,
108 DESCHEDULE_VPE,
109 COMMIT_VPE,
110 INVALL_VPE,
111 PROP_UPDATE_VSGI,
112};
113
114struct its_cmd_info {
115 enum its_vcpu_info_cmd_type cmd_type;
116 union {
117 struct its_vlpi_map *map;
118 u8 config;
119 bool req_db;
120 struct {
121 bool g0en;
122 bool g1en;
123 };
124 struct {
125 u8 priority;
126 bool group;
127 };
128 };
129};
130
131int its_alloc_vcpu_irqs(struct its_vm *vm);
132void its_free_vcpu_irqs(struct its_vm *vm);
133int its_make_vpe_resident(struct its_vpe *vpe, bool g0en, bool g1en);
134int its_make_vpe_non_resident(struct its_vpe *vpe, bool db);
135int its_commit_vpe(struct its_vpe *vpe);
136int its_invall_vpe(struct its_vpe *vpe);
137int its_map_vlpi(int irq, struct its_vlpi_map *map);
138int its_get_vlpi(int irq, struct its_vlpi_map *map);
139int its_unmap_vlpi(int irq);
140int its_prop_update_vlpi(int irq, u8 config, bool inv);
141int its_prop_update_vsgi(int irq, u8 priority, bool group);
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143struct irq_domain_ops;
144int its_init_v4(struct irq_domain *domain,
145 const struct irq_domain_ops *vpe_ops,
146 const struct irq_domain_ops *sgi_ops);
147
148bool gic_cpuif_has_vsgi(void);
149
150#endif
151