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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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58b6409067
Extend the previous operation of finding the resource table in the ELF with the extra step of populating the rproc struct with a copy and the size. This allows drivers to override the mechanism used for acquiring the resource table, or omit it for firmware that is known not to have a resource table. This leaves the custom, dummy, find_rsc_table implementations found in some drivers dangling. Reviewed-By: Loic Pallardy <loic.pallardy@st.com> Tested-By: Loic Pallardy <loic.pallardy@st.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
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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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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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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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/* 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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/* from remoteproc_virtio.c */
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int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id);
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void rproc_remove_virtio_dev(struct rproc_vdev *rvdev);
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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_mem_entry *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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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, int len);
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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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u32 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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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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u32 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_load_rsc_table(struct rproc *rproc,
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const struct firmware *fw)
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{
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if (rproc->ops->load_rsc_table)
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return rproc->ops->load_rsc_table(rproc, fw);
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return 0;
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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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#endif /* REMOTEPROC_INTERNAL_H */
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