drivers/remoteproc/remoteproc_internal.h

   1 /*
   2  * Remote processor framework
   3  *
   4  * Copyright (C) 2011 Texas Instruments, Inc.
   5  * Copyright (C) 2011 Google, Inc.
   6  *
   7  * Ohad Ben-Cohen <ohad@wizery.com>
   8  * Brian Swetland <swetland@google.com>
   9  *
  10  * This software is licensed under the terms of the GNU General Public
  11  * License version 2, as published by the Free Software Foundation, and
  12  * may be copied, distributed, and modified under those terms.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  */
  19
  20 #ifndef REMOTEPROC_INTERNAL_H
  21 #define REMOTEPROC_INTERNAL_H
  22
  23 #include <linux/irqreturn.h>
  24 #include <linux/firmware.h>
  25
  26 struct rproc;
  27
  28 struct rproc_debug_trace {
  29         struct rproc *rproc;
  30         struct dentry *tfile;
  31         struct list_head node;
  32         struct rproc_mem_entry trace_mem;
  33 };
  34
  35 /* from remoteproc_core.c */
  36 void rproc_release(struct kref *kref);
  37 irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
  38 void rproc_vdev_release(struct kref *ref);
  39
  40 /* from remoteproc_virtio.c */
  41 int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id);
  42 int rproc_remove_virtio_dev(struct device *dev, void *data);
  43
  44 /* from remoteproc_debugfs.c */
  45 void rproc_remove_trace_file(struct dentry *tfile);
  46 struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
  47                                        struct rproc_debug_trace *trace);
  48 void rproc_delete_debug_dir(struct rproc *rproc);
  49 void rproc_create_debug_dir(struct rproc *rproc);
  50 void rproc_init_debugfs(void);
  51 void rproc_exit_debugfs(void);
  52
  53 /* from remoteproc_sysfs.c */
  54 extern struct class rproc_class;
  55 int rproc_init_sysfs(void);
  56 void rproc_exit_sysfs(void);
  57
  58 void rproc_free_vring(struct rproc_vring *rvring);
  59 int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
  60
  61 void *rproc_da_to_va(struct rproc *rproc, u64 da, int len);
  62 phys_addr_t rproc_va_to_pa(void *cpu_addr);
  63 int rproc_trigger_recovery(struct rproc *rproc);
  64
  65 int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
  66 u32 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
  67 int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
  68 int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
  69 struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
  70                                                        const struct firmware *fw);
  71 struct rproc_mem_entry *
  72 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
  73
  74 static inline
  75 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
  76 {
  77         if (rproc->ops->sanity_check)
  78                 return rproc->ops->sanity_check(rproc, fw);
  79
  80         return 0;
  81 }
  82
  83 static inline
  84 u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
  85 {
  86         if (rproc->ops->get_boot_addr)
  87                 return rproc->ops->get_boot_addr(rproc, fw);
  88
  89         return 0;
  90 }
  91
  92 static inline
  93 int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
  94 {
  95         if (rproc->ops->load)
  96                 return rproc->ops->load(rproc, fw);
  97
  98         return -EINVAL;
  99 }
 100
 101 static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
 102 {
 103         if (rproc->ops->parse_fw)
 104                 return rproc->ops->parse_fw(rproc, fw);
 105
 106         return 0;
 107 }
 108
 109 static inline
 110 struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
 111                                                    const struct firmware *fw)
 112 {
 113         if (rproc->ops->find_loaded_rsc_table)
 114                 return rproc->ops->find_loaded_rsc_table(rproc, fw);
 115
 116         return NULL;
 117 }
 118
 119 #endif /* REMOTEPROC_INTERNAL_H */