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The release_tsp() implementations in the TI K3 R5, DSP and M4 remoteproc drivers release the TI-SCI processor control of a remote processor, which is auto triggered upon device removal. Refactor these functions into ti_k3_common.c driver as k3_release_tsp() and use this common function throughout in R5, DSP and M4 drivers. Signed-off-by: Beleswar Padhi <b-padhi@ti.com> Tested-by: Judith Mendez <jm@ti.com> Reviewed-by: Andrew Davis <afd@ti.com> Link: https://lore.kernel.org/r/20250513054510.3439842-37-b-padhi@ti.com Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
118 lines
3.7 KiB
C
118 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* TI K3 Remote Processor(s) driver common code
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*
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* Refactored out of ti_k3_r5_remoteproc.c, ti_k3_dsp_remoteproc.c and
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* ti_k3_m4_remoteproc.c.
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*
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* ti_k3_r5_remoteproc.c:
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* Copyright (C) 2017-2022 Texas Instruments Incorporated - https://www.ti.com/
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* Suman Anna <s-anna@ti.com>
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*
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* ti_k3_dsp_remoteproc.c:
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* Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
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* Suman Anna <s-anna@ti.com>
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*
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* ti_k3_m4_remoteproc.c:
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* Copyright (C) 2021-2024 Texas Instruments Incorporated - https://www.ti.com/
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* Hari Nagalla <hnagalla@ti.com>
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*/
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#ifndef REMOTEPROC_TI_K3_COMMON_H
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#define REMOTEPROC_TI_K3_COMMON_H
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#define KEYSTONE_RPROC_LOCAL_ADDRESS_MASK (SZ_16M - 1)
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/**
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* struct k3_rproc_mem - internal memory structure
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* @cpu_addr: MPU virtual address of the memory region
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* @bus_addr: Bus address used to access the memory region
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* @dev_addr: Device address of the memory region from remote processor view
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* @size: Size of the memory region
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*/
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struct k3_rproc_mem {
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void __iomem *cpu_addr;
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phys_addr_t bus_addr;
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u32 dev_addr;
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size_t size;
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};
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/**
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* struct k3_rproc_mem_data - memory definitions for a remote processor
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* @name: name for this memory entry
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* @dev_addr: device address for the memory entry
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*/
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struct k3_rproc_mem_data {
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const char *name;
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const u32 dev_addr;
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};
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/**
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* struct k3_rproc_dev_data - device data structure for a remote processor
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* @mems: pointer to memory definitions for a remote processor
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* @num_mems: number of memory regions in @mems
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* @boot_align_addr: boot vector address alignment granularity
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* @uses_lreset: flag to denote the need for local reset management
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*/
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struct k3_rproc_dev_data {
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const struct k3_rproc_mem_data *mems;
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u32 num_mems;
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u32 boot_align_addr;
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bool uses_lreset;
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};
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/**
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* struct k3_rproc - k3 remote processor driver structure
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* @dev: cached device pointer
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* @rproc: remoteproc device handle
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* @mem: internal memory regions data
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* @num_mems: number of internal memory regions
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* @rmem: reserved memory regions data
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* @num_rmems: number of reserved memory regions
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* @reset: reset control handle
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* @data: pointer to DSP-specific device data
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* @tsp: TI-SCI processor control handle
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* @ti_sci: TI-SCI handle
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* @ti_sci_id: TI-SCI device identifier
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* @mbox: mailbox channel handle
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* @client: mailbox client to request the mailbox channel
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* @priv: void pointer to carry any private data
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*/
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struct k3_rproc {
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struct device *dev;
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struct rproc *rproc;
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struct k3_rproc_mem *mem;
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int num_mems;
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struct k3_rproc_mem *rmem;
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int num_rmems;
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struct reset_control *reset;
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const struct k3_rproc_dev_data *data;
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struct ti_sci_proc *tsp;
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const struct ti_sci_handle *ti_sci;
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u32 ti_sci_id;
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struct mbox_chan *mbox;
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struct mbox_client client;
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void *priv;
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};
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void k3_rproc_mbox_callback(struct mbox_client *client, void *data);
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void k3_rproc_kick(struct rproc *rproc, int vqid);
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int k3_rproc_reset(struct k3_rproc *kproc);
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int k3_rproc_release(struct k3_rproc *kproc);
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int k3_rproc_request_mbox(struct rproc *rproc);
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int k3_rproc_prepare(struct rproc *rproc);
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int k3_rproc_unprepare(struct rproc *rproc);
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int k3_rproc_start(struct rproc *rproc);
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int k3_rproc_stop(struct rproc *rproc);
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int k3_rproc_attach(struct rproc *rproc);
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int k3_rproc_detach(struct rproc *rproc);
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struct resource_table *k3_get_loaded_rsc_table(struct rproc *rproc,
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size_t *rsc_table_sz);
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void *k3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len,
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bool *is_iomem);
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int k3_rproc_of_get_memories(struct platform_device *pdev,
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struct k3_rproc *kproc);
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void k3_mem_release(void *data);
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int k3_reserved_mem_init(struct k3_rproc *kproc);
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void k3_release_tsp(void *data);
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#endif /* REMOTEPROC_TI_K3_COMMON_H */
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