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| 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 |
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