1
2
3#ifndef _OCXL_INTERNAL_H_
4#define _OCXL_INTERNAL_H_
5
6#include <linux/pci.h>
7#include <linux/cdev.h>
8#include <linux/list.h>
9#include <misc/ocxl.h>
10
11#define MAX_IRQ_PER_LINK 2000
12#define MAX_IRQ_PER_CONTEXT MAX_IRQ_PER_LINK
13
14extern struct pci_driver ocxl_pci_driver;
15
16struct ocxl_fn {
17 struct device dev;
18 int bar_used[3];
19 struct ocxl_fn_config config;
20 struct list_head afu_list;
21 int pasid_base;
22 int actag_base;
23 int actag_enabled;
24 int actag_supported;
25 struct list_head pasid_list;
26 struct list_head actag_list;
27 void *link;
28};
29
30struct ocxl_file_info {
31 struct ocxl_afu *afu;
32 struct device dev;
33 struct cdev cdev;
34 struct bin_attribute attr_global_mmio;
35};
36
37struct ocxl_afu {
38 struct kref kref;
39 struct ocxl_fn *fn;
40 struct list_head list;
41 struct ocxl_afu_config config;
42 int pasid_base;
43 int pasid_count;
44 int pasid_max;
45 int actag_base;
46 int actag_enabled;
47 struct mutex contexts_lock;
48 struct idr contexts_idr;
49 struct mutex afu_control_lock;
50 u64 global_mmio_start;
51 u64 irq_base_offset;
52 void __iomem *global_mmio_ptr;
53 u64 pp_mmio_start;
54 void *private;
55};
56
57enum ocxl_context_status {
58 CLOSED,
59 OPENED,
60 ATTACHED,
61};
62
63
64struct ocxl_xsl_error {
65 u64 addr;
66 u64 dsisr;
67 u64 count;
68};
69
70struct ocxl_context {
71 struct ocxl_afu *afu;
72 int pasid;
73 struct mutex status_mutex;
74 enum ocxl_context_status status;
75 struct address_space *mapping;
76 struct mutex mapping_lock;
77 wait_queue_head_t events_wq;
78 struct mutex xsl_error_lock;
79 struct ocxl_xsl_error xsl_error;
80 struct mutex irq_lock;
81 struct idr irq_idr;
82 u16 tidr;
83};
84
85struct ocxl_process_element {
86 __be64 config_state;
87 __be32 pasid;
88 __be16 bdf;
89 __be16 reserved1;
90 __be32 reserved2[9];
91 __be32 lpid;
92 __be32 tid;
93 __be32 pid;
94 __be32 reserved3[10];
95 __be64 amr;
96 __be32 reserved4[3];
97 __be32 software_state;
98};
99
100int ocxl_create_cdev(struct ocxl_afu *afu);
101void ocxl_destroy_cdev(struct ocxl_afu *afu);
102int ocxl_file_register_afu(struct ocxl_afu *afu);
103void ocxl_file_unregister_afu(struct ocxl_afu *afu);
104
105int ocxl_file_init(void);
106void ocxl_file_exit(void);
107
108int ocxl_pasid_afu_alloc(struct ocxl_fn *fn, u32 size);
109void ocxl_pasid_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
110int ocxl_actag_afu_alloc(struct ocxl_fn *fn, u32 size);
111void ocxl_actag_afu_free(struct ocxl_fn *fn, u32 start, u32 size);
112
113
114
115
116int ocxl_config_get_pasid_info(struct pci_dev *dev, int *count);
117
118
119
120
121int ocxl_config_get_reset_reload(struct pci_dev *dev, int *val);
122int ocxl_config_set_reset_reload(struct pci_dev *dev, int val);
123
124
125
126
127
128
129
130int ocxl_config_check_afu_index(struct pci_dev *dev,
131 struct ocxl_fn_config *fn, int afu_idx);
132
133
134
135
136
137
138
139
140
141int ocxl_link_update_pe(void *link_handle, int pasid, __u16 tid);
142
143int ocxl_context_mmap(struct ocxl_context *ctx,
144 struct vm_area_struct *vma);
145void ocxl_context_detach_all(struct ocxl_afu *afu);
146
147int ocxl_sysfs_register_afu(struct ocxl_file_info *info);
148void ocxl_sysfs_unregister_afu(struct ocxl_file_info *info);
149
150int ocxl_irq_offset_to_id(struct ocxl_context *ctx, u64 offset);
151u64 ocxl_irq_id_to_offset(struct ocxl_context *ctx, int irq_id);
152void ocxl_afu_irq_free_all(struct ocxl_context *ctx);
153
154#endif
155