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_elf32_sanity_check(struct rproc *rproc, const struct firmware *fw); 58 int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw); 59 u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw); 60 int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw); 61 int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw); 62 struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc, 63 const struct firmware *fw); 64 struct rproc_mem_entry * 65 rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...); 66 67 static inline 68 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw) 69 { 70 if (rproc->ops->sanity_check) 71 return rproc->ops->sanity_check(rproc, fw); 72 73 return 0; 74 } 75 76 static inline 77 u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) 78 { 79 if (rproc->ops->get_boot_addr) 80 return rproc->ops->get_boot_addr(rproc, fw); 81 82 return 0; 83 } 84 85 static inline 86 int rproc_load_segments(struct rproc *rproc, const struct firmware *fw) 87 { 88 if (rproc->ops->load) 89 return rproc->ops->load(rproc, fw); 90 91 return -EINVAL; 92 } 93 94 static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) 95 { 96 if (rproc->ops->parse_fw) 97 return rproc->ops->parse_fw(rproc, fw); 98 99 return 0; 100 } 101 102 static inline 103 int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset, 104 int avail) 105 { 106 if (rproc->ops->handle_rsc) 107 return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset, 108 avail); 109 110 return RSC_IGNORED; 111 } 112 113 static inline 114 struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc, 115 const struct firmware *fw) 116 { 117 if (rproc->ops->find_loaded_rsc_table) 118 return rproc->ops->find_loaded_rsc_table(rproc, fw); 119 120 return NULL; 121 } 122 123 static inline 124 bool rproc_u64_fit_in_size_t(u64 val) 125 { 126 if (sizeof(size_t) == sizeof(u64)) 127 return true; 128 129 return (val <= (size_t) -1); 130 } 131 132 #endif /* REMOTEPROC_INTERNAL_H */ 133