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1a631382be
Add a new get_loaded_rsc_table() operation in order to support scenarios where the remoteproc core has booted a remote processor and detaches from it. When re-attaching to the remote processor, the core needs to know where the resource table has been placed in memory. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Link: https://lore.kernel.org/r/20210312162453.1234145-6-mathieu.poirier@linaro.org Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
200 lines
4.8 KiB
C
200 lines
4.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Remote processor framework
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*
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* Copyright (C) 2011 Texas Instruments, Inc.
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* Copyright (C) 2011 Google, Inc.
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*
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* Ohad Ben-Cohen <ohad@wizery.com>
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* Brian Swetland <swetland@google.com>
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*/
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#ifndef REMOTEPROC_INTERNAL_H
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#define REMOTEPROC_INTERNAL_H
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#include <linux/irqreturn.h>
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#include <linux/firmware.h>
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struct rproc;
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struct rproc_debug_trace {
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struct rproc *rproc;
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struct dentry *tfile;
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struct list_head node;
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struct rproc_mem_entry trace_mem;
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};
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/* from remoteproc_core.c */
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void rproc_release(struct kref *kref);
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irqreturn_t rproc_vq_interrupt(struct rproc *rproc, int vq_id);
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void rproc_vdev_release(struct kref *ref);
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int rproc_of_parse_firmware(struct device *dev, int index,
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const char **fw_name);
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/* from remoteproc_virtio.c */
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int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id);
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int rproc_remove_virtio_dev(struct device *dev, void *data);
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/* from remoteproc_debugfs.c */
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void rproc_remove_trace_file(struct dentry *tfile);
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struct dentry *rproc_create_trace_file(const char *name, struct rproc *rproc,
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struct rproc_debug_trace *trace);
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void rproc_delete_debug_dir(struct rproc *rproc);
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void rproc_create_debug_dir(struct rproc *rproc);
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void rproc_init_debugfs(void);
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void rproc_exit_debugfs(void);
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/* from remoteproc_sysfs.c */
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extern struct class rproc_class;
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int rproc_init_sysfs(void);
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void rproc_exit_sysfs(void);
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/* from remoteproc_coredump.c */
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void rproc_coredump_cleanup(struct rproc *rproc);
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void rproc_coredump(struct rproc *rproc);
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#ifdef CONFIG_REMOTEPROC_CDEV
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void rproc_init_cdev(void);
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void rproc_exit_cdev(void);
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int rproc_char_device_add(struct rproc *rproc);
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void rproc_char_device_remove(struct rproc *rproc);
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#else
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static inline void rproc_init_cdev(void)
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{
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}
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static inline void rproc_exit_cdev(void)
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{
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}
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/*
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* The character device interface is an optional feature, if it is not enabled
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* the function should not return an error.
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*/
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static inline int rproc_char_device_add(struct rproc *rproc)
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{
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return 0;
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}
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static inline void rproc_char_device_remove(struct rproc *rproc)
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{
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}
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#endif
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void rproc_free_vring(struct rproc_vring *rvring);
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int rproc_alloc_vring(struct rproc_vdev *rvdev, int i);
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void *rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem);
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phys_addr_t rproc_va_to_pa(void *cpu_addr);
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int rproc_trigger_recovery(struct rproc *rproc);
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int rproc_elf_sanity_check(struct rproc *rproc, const struct firmware *fw);
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u64 rproc_elf_get_boot_addr(struct rproc *rproc, const struct firmware *fw);
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int rproc_elf_load_segments(struct rproc *rproc, const struct firmware *fw);
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int rproc_elf_load_rsc_table(struct rproc *rproc, const struct firmware *fw);
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struct resource_table *rproc_elf_find_loaded_rsc_table(struct rproc *rproc,
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const struct firmware *fw);
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struct rproc_mem_entry *
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rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...);
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static inline int rproc_prepare_device(struct rproc *rproc)
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{
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if (rproc->ops->prepare)
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return rproc->ops->prepare(rproc);
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return 0;
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}
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static inline int rproc_unprepare_device(struct rproc *rproc)
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{
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if (rproc->ops->unprepare)
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return rproc->ops->unprepare(rproc);
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return 0;
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}
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static inline int rproc_attach_device(struct rproc *rproc)
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{
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if (rproc->ops->attach)
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return rproc->ops->attach(rproc);
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return 0;
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}
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static inline
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int rproc_fw_sanity_check(struct rproc *rproc, const struct firmware *fw)
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{
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if (rproc->ops->sanity_check)
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return rproc->ops->sanity_check(rproc, fw);
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return 0;
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}
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static inline
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u64 rproc_get_boot_addr(struct rproc *rproc, const struct firmware *fw)
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{
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if (rproc->ops->get_boot_addr)
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return rproc->ops->get_boot_addr(rproc, fw);
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return 0;
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}
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static inline
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int rproc_load_segments(struct rproc *rproc, const struct firmware *fw)
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{
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if (rproc->ops->load)
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return rproc->ops->load(rproc, fw);
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return -EINVAL;
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}
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static inline int rproc_parse_fw(struct rproc *rproc, const struct firmware *fw)
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{
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if (rproc->ops->parse_fw)
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return rproc->ops->parse_fw(rproc, fw);
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return 0;
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}
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static inline
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int rproc_handle_rsc(struct rproc *rproc, u32 rsc_type, void *rsc, int offset,
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int avail)
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{
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if (rproc->ops->handle_rsc)
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return rproc->ops->handle_rsc(rproc, rsc_type, rsc, offset,
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avail);
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return RSC_IGNORED;
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}
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static inline
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struct resource_table *rproc_find_loaded_rsc_table(struct rproc *rproc,
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const struct firmware *fw)
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{
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if (rproc->ops->find_loaded_rsc_table)
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return rproc->ops->find_loaded_rsc_table(rproc, fw);
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return NULL;
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}
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static inline
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struct resource_table *rproc_get_loaded_rsc_table(struct rproc *rproc,
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size_t *size)
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{
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if (rproc->ops->get_loaded_rsc_table)
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return rproc->ops->get_loaded_rsc_table(rproc, size);
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return NULL;
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}
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static inline
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bool rproc_u64_fit_in_size_t(u64 val)
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{
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if (sizeof(size_t) == sizeof(u64))
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return true;
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return (val <= (size_t) -1);
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}
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#endif /* REMOTEPROC_INTERNAL_H */
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