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- /* SPDX-License-Identifier: GPL-2.0-only */
- /*
- * Remote processor framework
- *
- * Copyright (C) 2011 Texas Instruments, Inc.
- * Copyright (C) 2011 Google, Inc.
- *
- * Ohad Ben-Cohen <ohad@wizery.com>
- * Brian Swetland <swetland@google.com>
- */
- #ifndef REMOTEPROC_INTERNAL_H
- #define REMOTEPROC_INTERNAL_H
- #include <linux/irqreturn.h>
- #include <linux/firmware.h>
- struct rproc;
- struct rproc_debug_trace {
- struct rproc *rproc;
- struct dentry *tfile;
- struct list_head node;
- struct rproc_mem_entry trace_mem;
- };
- /* from remoteproc_core.c */
- void rproc_release(struct kref *kref);
- irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
- void rproc_vdev_release(struct kref *ref);
- int rproc_of_parse_firmware(struct device *dev, int index,
- const char **fw_name);
- /* from remoteproc_virtio.c */
- int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id);
- int rproc_remove_virtio_dev(struct device *dev, void *data);
- /* from remoteproc_debugfs.c */
- void rproc_remove_trace_file(struct dentry *tfile);
- struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
- struct rproc_debug_trace *trace);
- void rproc_delete_debug_dir(struct rproc *rproc);
- void rproc_create_debug_dir(struct rproc *rproc);
- void rproc_init_debugfs(void);
- void rproc_exit_debugfs(void);
- /* from remoteproc_sysfs.c */
- extern struct class rproc_class;
- int rproc_init_sysfs(void);
- void rproc_exit_sysfs(void);
- #ifdef CONFIG_REMOTEPROC_CDEV
- void rproc_init_cdev(void);
- void rproc_exit_cdev(void);
- int rproc_char_device_add(struct rproc *rproc);
- void rproc_char_device_remove(struct rproc *rproc);
- #else
- static inline void rproc_init_cdev(void)
- {
- }
- static inline void rproc_exit_cdev(void)
- {
- }
- /*
- * The character device interface is an optional feature, if it is not enabled
- * the function should not return an error.
- */
- static inline int rproc_char_device_add(struct rproc *rproc)
- {
- return 0;
- }
- static inline void rproc_char_device_remove(struct rproc *rproc)
- {
- }
- #endif
- void rproc_free_vring(struct rproc_vring *rvring);
- int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
- void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
- phys_addr_t rproc_va_to_pa(void *cpu_addr);
- int rproc_trigger_recovery(struct rproc *rproc);
- int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
- u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
- int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
- int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
- struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
- const struct firmware *fw);
- struct rproc_mem_entry *
- rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
- static inline int rproc_prepare_device(struct rproc *rproc)
- {
- if (rproc->ops->prepare)
- return rproc->ops->prepare(rproc);
- return 0;
- }
- static inline int rproc_unprepare_device(struct rproc *rproc)
- {
- if (rproc->ops->unprepare)
- return rproc->ops->unprepare(rproc);
- return 0;
- }
- static inline int rproc_attach_device(struct rproc *rproc)
- {
- if (rproc->ops->attach)
- return rproc->ops->attach(rproc);
- return 0;
- }
- static inline
- int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
- {
- if (rproc->ops->sanity_check)
- return rproc->ops->sanity_check(rproc, fw);
- return 0;
- }
- static inline
- u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
- {
- if (rproc->ops->get_boot_addr)
- return rproc->ops->get_boot_addr(rproc, fw);
- return 0;
- }
- static inline
- int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
- {
- if (rproc->ops->load)
- return rproc->ops->load(rproc, fw);
- return -EINVAL;
- }
- static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
- {
- if (rproc->ops->parse_fw)
- return rproc->ops->parse_fw(rproc, fw);
- return 0;
- }
- static inline
- int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
- int avail)
- {
- if (rproc->ops->handle_rsc)
- return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
- avail);
- return RSC_IGNORED;
- }
- static inline
- struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
- const struct firmware *fw)
- {
- if (rproc->ops->find_loaded_rsc_table)
- return rproc->ops->find_loaded_rsc_table(rproc, fw);
- return NULL;
- }
- static inline
- bool rproc_u64_fit_in_size_t(u64 val)
- {
- if (sizeof(size_t) == sizeof(u64))
- return true;
- return (val <= (size_t) -1);
- }
- #endif /* REMOTEPROC_INTERNAL_H */
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