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 /** 29 * struct rproc_fw_ops - firmware format specific operations. 30 * @find_rsc_table: finds the resource table inside the firmware image 31 * @load: load firmeware to memory, where the remote processor 32 * expects to find it 33 * @sanity_check: sanity check the fw image 34 * @get_boot_addr: get boot address to entry point specified in firmware 35 */ 36 struct rproc_fw_ops { 37 struct resource_table *(*find_rsc_table) (struct rproc *rproc, 38 const struct firmware *fw, 39 int *tablesz); 40 int (*load)(struct rproc *rproc, const struct firmware *fw); 41 int (*sanity_check)(struct rproc *rproc, const struct firmware *fw); 42 u32 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw); 43 }; 44 45 /* from remoteproc_core.c */ 46 void rproc_release(struct kref *kref); 47 irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); 48 49 /* from remoteproc_virtio.c */ 50 int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id); 51 void rproc_remove_virtio_dev(struct rproc_vdev *rvdev); 52 53 /* from remoteproc_debugfs.c */ 54 void rproc_remove_trace_file(struct dentry *tfile); 55 struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc, 56 struct rproc_mem_entry *trace); 57 void rproc_delete_debug_dir(struct rproc *rproc); 58 void rproc_create_debug_dir(struct rproc *rproc); 59 void rproc_init_debugfs(void); 60 void rproc_exit_debugfs(void); 61 62 void rproc_free_vring(struct rproc_vring *rvring); 63 int rproc_alloc_vring(struct rproc_vdev *rvdev, int i); 64 65 void *rproc_da_to_va(struct rproc *rproc, u64 da, int len); 66 67 static inline 68 int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw) 69 { 70 if (rproc->fw_ops->sanity_check) 71 return rproc->fw_ops->sanity_check(rproc, fw); 72 73 return 0; 74 } 75 76 static inline 77 u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) 78 { 79 if (rproc->fw_ops->get_boot_addr) 80 return rproc->fw_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->fw_ops->load) 89 return rproc->fw_ops->load(rproc, fw); 90 91 return -EINVAL; 92 } 93 94 static inline 95 struct resource_table *rproc_find_rsc_table(struct rproc *rproc, 96 const struct firmware *fw, int *tablesz) 97 { 98 if (rproc->fw_ops->find_rsc_table) 99 return rproc->fw_ops->find_rsc_table(rproc, fw, tablesz); 100 101 return NULL; 102 } 103 104 extern const struct rproc_fw_ops rproc_elf_fw_ops; 105 106 #endif /* REMOTEPROC_INTERNAL_H */ 107