1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Remote processor framework 4 * 5 * Copyright (C) 2011 Texas Instruments, Inc. 6 * Copyright (C) 2011 Google, Inc. 7 * 8 * Ohad Ben-Cohen <ohad@wizery.com> 9 * Brian Swetland <swetland@google.com> 10 */ 11 12 #ifndef REMOTEPROC_INTERNAL_H 13 #define REMOTEPROC_INTERNAL_H 14 15 #include <linux/irqreturn.h> 16 #include <linux/firmware.h> 17 18 struct rproc; 19 20 struct rproc_debug_trace { 21 struct rproc *rproc; 22 struct dentry *tfile; 23 struct list_head node; 24 struct rproc_mem_entry trace_mem; 25 }; 26 27 /* from remoteproc_core.c */ 28 void rproc_release(struct kref *kref); 29 irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); 30 void rproc_vdev_release(struct kref *ref); 31 32 /* from remoteproc_virtio.c */ 33 int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id); 34 int rproc_remove_virtio_dev(struct device *dev, void *data); 35 36 /* from remoteproc_debugfs.c */ 37 void rproc_remove_trace_file(struct dentry *tfile); 38 struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc, 39 struct rproc_debug_trace *trace); 40 void rproc_delete_debug_dir(struct rproc *rproc); 41 void rproc_create_debug_dir(struct rproc *rproc); 42 void rproc_init_debugfs(void); 43 void rproc_exit_debugfs(void); 44 45 /* from remoteproc_sysfs.c */ 46 extern struct class rproc_class; 47 int rproc_init_sysfs(void); 48 void rproc_exit_sysfs(void); 49 50 void rproc_free_vring(struct rproc_vring *rvring); 51 int rproc_alloc_vring(struct rproc_vdev *rvdev, int i); 52 53 void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len); 54 phys_addr_t rproc_va_to_pa(void *cpu_addr); 55 int rproc_trigger_recovery(struct rproc *rproc); 56 57 int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw); 58 u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw); 59 int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw); 60 int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw); 61 struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc, 62 const struct firmware *fw); 63 struct rproc_mem_entry * 64 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...); 65 66 static inline int rproc_prepare_device(struct rproc *rproc) 67 { 68 if (rproc->ops->prepare) 69 return rproc->ops->prepare(rproc); 70 71 return 0; 72 } 73 74 static inline int rproc_unprepare_device(struct rproc *rproc) 75 { 76 if (rproc->ops->unprepare) 77 return rproc->ops->unprepare(rproc); 78 79 return 0; 80 } 81 82 static inline 83 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw) 84 { 85 if (rproc->ops->sanity_check) 86 return rproc->ops->sanity_check(rproc, fw); 87 88 return 0; 89 } 90 91 static inline 92 u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) 93 { 94 if (rproc->ops->get_boot_addr) 95 return rproc->ops->get_boot_addr(rproc, fw); 96 97 return 0; 98 } 99 100 static inline 101 int rproc_load_segments(struct rproc *rproc, const struct firmware *fw) 102 { 103 if (rproc->ops->load) 104 return rproc->ops->load(rproc, fw); 105 106 return -EINVAL; 107 } 108 109 static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) 110 { 111 if (rproc->ops->parse_fw) 112 return rproc->ops->parse_fw(rproc, fw); 113 114 return 0; 115 } 116 117 static inline 118 int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset, 119 int avail) 120 { 121 if (rproc->ops->handle_rsc) 122 return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset, 123 avail); 124 125 return RSC_IGNORED; 126 } 127 128 static inline 129 struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc, 130 const struct firmware *fw) 131 { 132 if (rproc->ops->find_loaded_rsc_table) 133 return rproc->ops->find_loaded_rsc_table(rproc, fw); 134 135 return NULL; 136 } 137 138 static inline 139 bool rproc_u64_fit_in_size_t(u64 val) 140 { 141 if (sizeof(size_t) == sizeof(u64)) 142 return true; 143 144 return (val <= (size_t) -1); 145 } 146 147 #endif /* REMOTEPROC_INTERNAL_H */ 148