1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Remote processor framework
5 * Copyright (C) 2011 Texas Instruments, Inc.
6 * Copyright (C) 2011 Google, Inc.
8 * Ohad Ben-Cohen <ohad@wizery.com>
9 * Brian Swetland <swetland@google.com>
12 #ifndef REMOTEPROC_INTERNAL_H
13 #define REMOTEPROC_INTERNAL_H
15 #include <linux/irqreturn.h>
16 #include <linux/firmware.h>
20 struct rproc_debug_trace {
23 struct list_head node;
24 struct rproc_mem_entry trace_mem;
28 * struct rproc_vdev_data - remoteproc virtio device data
29 * @rsc_offset: offset of the vdev's resource entry
30 * @id: virtio device id (as in virtio_ids.h)
31 * @index: vdev position versus other vdev declared in resource table
32 * @rsc: pointer to the vdev resource entry. Valid only during vdev init as
33 * the resource can be cached by rproc.
35 struct rproc_vdev_data {
39 struct fw_rsc_vdev *rsc;
42 static inline bool rproc_has_feature(struct rproc *rproc, unsigned int feature)
44 return test_bit(feature, rproc->features);
47 static inline int rproc_set_feature(struct rproc *rproc, unsigned int feature)
49 if (feature >= RPROC_MAX_FEATURES)
52 set_bit(feature, rproc->features);
57 /* from remoteproc_core.c */
58 void rproc_release(struct kref *kref);
59 int rproc_of_parse_firmware(struct device *dev, int index,
60 const char **fw_name);
62 /* from remoteproc_virtio.c */
63 irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
65 /* from remoteproc_debugfs.c */
66 void rproc_remove_trace_file(struct dentry *tfile);
67 struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
68 struct rproc_debug_trace *trace);
69 void rproc_delete_debug_dir(struct rproc *rproc);
70 void rproc_create_debug_dir(struct rproc *rproc);
71 void rproc_init_debugfs(void);
72 void rproc_exit_debugfs(void);
74 /* from remoteproc_sysfs.c */
75 extern struct class rproc_class;
76 int rproc_init_sysfs(void);
77 void rproc_exit_sysfs(void);
79 #ifdef CONFIG_REMOTEPROC_CDEV
80 void rproc_init_cdev(void);
81 void rproc_exit_cdev(void);
82 int rproc_char_device_add(struct rproc *rproc);
83 void rproc_char_device_remove(struct rproc *rproc);
85 static inline void rproc_init_cdev(void)
89 static inline void rproc_exit_cdev(void)
94 * The character device interface is an optional feature, if it is not enabled
95 * the function should not return an error.
97 static inline int rproc_char_device_add(struct rproc *rproc)
102 static inline void rproc_char_device_remove(struct rproc *rproc)
107 void rproc_free_vring(struct rproc_vring *rvring);
108 int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
109 int rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i);
111 phys_addr_t rproc_va_to_pa(void *cpu_addr);
112 int rproc_trigger_recovery(struct rproc *rproc);
114 int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
115 u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
116 int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
117 int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
118 struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
119 const struct firmware *fw);
120 struct rproc_mem_entry *
121 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
122 void rproc_add_rvdev(struct rproc *rproc, struct rproc_vdev *rvdev);
123 void rproc_remove_rvdev(struct rproc_vdev *rvdev);
125 static inline int rproc_prepare_device(struct rproc *rproc)
127 if (rproc->ops->prepare)
128 return rproc->ops->prepare(rproc);
133 static inline int rproc_unprepare_device(struct rproc *rproc)
135 if (rproc->ops->unprepare)
136 return rproc->ops->unprepare(rproc);
141 static inline int rproc_attach_device(struct rproc *rproc)
143 if (rproc->ops->attach)
144 return rproc->ops->attach(rproc);
150 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
152 if (rproc->ops->sanity_check)
153 return rproc->ops->sanity_check(rproc, fw);
159 u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
161 if (rproc->ops->get_boot_addr)
162 return rproc->ops->get_boot_addr(rproc, fw);
168 int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
170 if (rproc->ops->load)
171 return rproc->ops->load(rproc, fw);
176 static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
178 if (rproc->ops->parse_fw)
179 return rproc->ops->parse_fw(rproc, fw);
185 int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
188 if (rproc->ops->handle_rsc)
189 return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
196 struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
197 const struct firmware *fw)
199 if (rproc->ops->find_loaded_rsc_table)
200 return rproc->ops->find_loaded_rsc_table(rproc, fw);
206 struct resource_table *rproc_get_loaded_rsc_table(struct rproc *rproc,
209 if (rproc->ops->get_loaded_rsc_table)
210 return rproc->ops->get_loaded_rsc_table(rproc, size);
216 bool rproc_u64_fit_in_size_t(u64 val)
218 if (sizeof(size_t) == sizeof(u64))
221 return (val <= (size_t) -1);
224 #endif /* REMOTEPROC_INTERNAL_H */