diff options
Diffstat (limited to 'drivers/remoteproc/remoteproc_internal.h')
| -rw-r--r-- | drivers/remoteproc/remoteproc_internal.h | 196 |
1 files changed, 150 insertions, 46 deletions
diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index 70701a50ddfa..0cd09e67ac14 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Remote processor framework * @@ -6,15 +7,6 @@ * * 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 @@ -25,63 +17,149 @@ struct rproc; +struct rproc_debug_trace { + struct rproc *rproc; + struct dentry *tfile; + struct list_head node; + struct rproc_mem_entry trace_mem; +}; + /** - * 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_vdev_data - remoteproc virtio device data + * @rsc_offset: offset of the vdev's resource entry + * @id: virtio device id (as in virtio_ids.h) + * @index: vdev position versus other vdev declared in resource table + * @rsc: pointer to the vdev resource entry. Valid only during vdev init as + * the resource can be cached by rproc. */ -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); +struct rproc_vdev_data { + u32 rsc_offset; + unsigned int id; + u32 index; + struct fw_rsc_vdev *rsc; }; +static inline bool rproc_has_feature(struct rproc *rproc, unsigned int feature) +{ + return test_bit(feature, rproc->features); +} + +static inline int rproc_set_feature(struct rproc *rproc, unsigned int feature) +{ + if (feature >= RPROC_MAX_FEATURES) + return -EINVAL; + + set_bit(feature, rproc->features); + + return 0; +} + /* from remoteproc_core.c */ void rproc_release(struct kref *kref); -irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); +int rproc_of_parse_firmware(struct device *dev, int index, + const char **fw_name); /* from remoteproc_virtio.c */ -int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id); -void rproc_remove_virtio_dev(struct rproc_vdev *rvdev); +irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id); /* 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); + struct rproc_debug_trace *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); +/* from remoteproc_sysfs.c */ +extern const struct class rproc_class; +int rproc_init_sysfs(void); +void rproc_exit_sysfs(void); + +#ifdef CONFIG_REMOTEPROC_CDEV +void rproc_init_cdev(void); +void rproc_exit_cdev(void); +int rproc_char_device_add(struct rproc *rproc); +void rproc_char_device_remove(struct rproc *rproc); +#else +static inline void rproc_init_cdev(void) +{ +} + +static inline void rproc_exit_cdev(void) +{ +} + +/* + * The character device interface is an optional feature, if it is not enabled + * the function should not return an error. + */ +static inline int rproc_char_device_add(struct rproc *rproc) +{ + return 0; +} + +static inline void rproc_char_device_remove(struct rproc *rproc) +{ +} +#endif + void rproc_free_vring(struct rproc_vring *rvring); int rproc_alloc_vring(struct rproc_vdev *rvdev, int i); +int rproc_parse_vring(struct rproc_vdev *rvdev, struct fw_rsc_vdev *rsc, int i); -void *rproc_da_to_va(struct rproc *rproc, u64 da, int len); +phys_addr_t rproc_va_to_pa(void *cpu_addr); int rproc_trigger_recovery(struct rproc *rproc); +int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw); +u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw); +int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw); +int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw); +struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc, + const struct firmware *fw); +struct rproc_mem_entry * +rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...); +void rproc_add_rvdev(struct rproc *rproc, struct rproc_vdev *rvdev); +void rproc_remove_rvdev(struct rproc_vdev *rvdev); + +static inline int rproc_prepare_device(struct rproc *rproc) +{ + if (rproc->ops->prepare) + return rproc->ops->prepare(rproc); + + return 0; +} + +static inline int rproc_unprepare_device(struct rproc *rproc) +{ + if (rproc->ops->unprepare) + return rproc->ops->unprepare(rproc); + + return 0; +} + +static inline int rproc_attach_device(struct rproc *rproc) +{ + if (rproc->ops->attach) + return rproc->ops->attach(rproc); + + return 0; +} + 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); + if (rproc->ops->sanity_check) + return rproc->ops->sanity_check(rproc, fw); return 0; } static inline -u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) +u64 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); + if (rproc->ops->get_boot_addr) + return rproc->ops->get_boot_addr(rproc, fw); return 0; } @@ -89,32 +167,58 @@ u32 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw) 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); + if (rproc->ops->load) + return rproc->ops->load(rproc, fw); return -EINVAL; } +static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw) +{ + if (rproc->ops->parse_fw) + return rproc->ops->parse_fw(rproc, fw); + + return 0; +} + static inline -struct resource_table *rproc_find_rsc_table(struct rproc *rproc, - const struct firmware *fw, int *tablesz) +int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset, + int avail) { - if (rproc->fw_ops->find_rsc_table) - return rproc->fw_ops->find_rsc_table(rproc, fw, tablesz); + if (rproc->ops->handle_rsc) + return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset, + avail); - return NULL; + return RSC_IGNORED; } static inline struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc, - const struct firmware *fw) + const struct firmware *fw) { - if (rproc->fw_ops->find_loaded_rsc_table) - return rproc->fw_ops->find_loaded_rsc_table(rproc, fw); + if (rproc->ops->find_loaded_rsc_table) + return rproc->ops->find_loaded_rsc_table(rproc, fw); return NULL; } -extern const struct rproc_fw_ops rproc_elf_fw_ops; +static inline +struct resource_table *rproc_get_loaded_rsc_table(struct rproc *rproc, + size_t *size) +{ + if (rproc->ops->get_loaded_rsc_table) + return rproc->ops->get_loaded_rsc_table(rproc, size); + + return NULL; +} + +static inline +bool rproc_u64_fit_in_size_t(u64 val) +{ + if (sizeof(size_t) == sizeof(u64)) + return true; + + return (val <= (size_t) -1); +} #endif /* REMOTEPROC_INTERNAL_H */ |