diff options
Diffstat (limited to 'kernel/drivers/remoteproc/remoteproc_internal.h')
-rw-r--r-- | kernel/drivers/remoteproc/remoteproc_internal.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/kernel/drivers/remoteproc/remoteproc_internal.h b/kernel/drivers/remoteproc/remoteproc_internal.h new file mode 100644 index 000000000..70701a50d --- /dev/null +++ b/kernel/drivers/remoteproc/remoteproc_internal.h @@ -0,0 +1,120 @@ +/* + * Remote processor framework + * + * Copyright (C) 2011 Texas Instruments, Inc. + * Copyright (C) 2011 Google, Inc. + * + * Ohad Ben-Cohen <ohad@wizery.com> + * Brian Swetland <swetland@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef REMOTEPROC_INTERNAL_H +#define REMOTEPROC_INTERNAL_H + +#include <linux/irqreturn.h> +#include <linux/firmware.h> + +struct rproc; + +/** + * struct rproc_fw_ops - firmware format specific operations. + * @find_rsc_table: find the resource table inside the firmware image + * @find_loaded_rsc_table: find the loaded resouce table + * @load: load firmeware to memory, where the remote processor + * expects to find it + * @sanity_check: sanity check the fw image + * @get_boot_addr: get boot address to entry point specified in firmware + */ +struct rproc_fw_ops { + struct resource_table *(*find_rsc_table) (struct rproc *rproc, + const struct firmware *fw, + int *tablesz); + struct resource_table *(*find_loaded_rsc_table)(struct rproc *rproc, + const struct firmware *fw); + int (*load)(struct rproc *rproc, const struct firmware *fw); + int (*sanity_check)(struct rproc *rproc, const struct firmware *fw); + u32 (*get_boot_addr)(struct rproc *rproc, const struct firmware *fw); +}; + +/* from remoteproc_core.c */ +void rproc_release(struct kref *kref); +irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); + +/* from remoteproc_virtio.c */ +int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id); +void rproc_remove_virtio_dev(struct rproc_vdev *rvdev); + +/* from remoteproc_debugfs.c */ +void rproc_remove_trace_file(struct dentry *tfile); +struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc, + struct rproc_mem_entry *trace); +void rproc_delete_debug_dir(struct rproc *rproc); +void rproc_create_debug_dir(struct rproc *rproc); +void rproc_init_debugfs(void); +void rproc_exit_debugfs(void); + +void rproc_free_vring(struct rproc_vring *rvring); +int rproc_alloc_vring(struct rproc_vdev *rvdev, int i); + +void *rproc_da_to_va(struct rproc *rproc, u64 da, int len); +int rproc_trigger_recovery(struct rproc *rproc); + +static inline +int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw) +{ + if (rproc->fw_ops->sanity_check) + return rproc->fw_ops->sanity_check(rproc, fw); + + return 0; +} + +static inline +u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) +{ + if (rproc->fw_ops->get_boot_addr) + return rproc->fw_ops->get_boot_addr(rproc, fw); + + return 0; +} + +static inline +int rproc_load_segments(struct rproc *rproc, const struct firmware *fw) +{ + if (rproc->fw_ops->load) + return rproc->fw_ops->load(rproc, fw); + + return -EINVAL; +} + +static inline +struct resource_table *rproc_find_rsc_table(struct rproc *rproc, + const struct firmware *fw, int *tablesz) +{ + if (rproc->fw_ops->find_rsc_table) + return rproc->fw_ops->find_rsc_table(rproc, fw, tablesz); + + return NULL; +} + +static inline +struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc, + const struct firmware *fw) +{ + if (rproc->fw_ops->find_loaded_rsc_table) + return rproc->fw_ops->find_loaded_rsc_table(rproc, fw); + + return NULL; +} + +extern const struct rproc_fw_ops rproc_elf_fw_ops; + +#endif /* REMOTEPROC_INTERNAL_H */ |