From: Martyn Welch <[email protected]>
We will be adding the M4F driver which shares a lot of commonality
with the DSP driver. Common data structures are introduced here.
Signed-off-by: Martyn Welch <[email protected]>
Signed-off-by: Hari Nagalla <[email protected]>
---
Changes in v6:
- Created a separate patch for data structures to ease review
drivers/remoteproc/ti_k3_common.h | 103 ++++++++++++++++++++++++++++++
1 file changed, 103 insertions(+)
create mode 100644 drivers/remoteproc/ti_k3_common.h
diff --git a/drivers/remoteproc/ti_k3_common.h b/drivers/remoteproc/ti_k3_common.h
new file mode 100644
index 000000000000..5e1f27741183
--- /dev/null
+++ b/drivers/remoteproc/ti_k3_common.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * TI K3 Remote Processor(s) driver common code
+ *
+ * Refactored from ti_k3_dsp_remoteproc.c.
+ *
+ * ti_k3_dsp_remoteproc.c:
+ * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/
+ * Suman Anna <[email protected]>
+ */
+
+#ifndef REMOTEPROC_TI_K3_COMMON_H
+#define REMOTEPROC_TI_K3_COMMON_H
+
+#define KEYSTONE_RPROC_LOCAL_ADDRESS_MASK (SZ_16M - 1)
+
+/**
+ * struct k3_rproc_mem - internal memory structure
+ * @cpu_addr: MPU virtual address of the memory region
+ * @bus_addr: Bus address used to access the memory region
+ * @dev_addr: Device address of the memory region from DSP view
+ * @size: Size of the memory region
+ */
+struct k3_rproc_mem {
+ void __iomem *cpu_addr;
+ phys_addr_t bus_addr;
+ u32 dev_addr;
+ size_t size;
+};
+
+/**
+ * struct k3_rproc_mem_data - memory definitions for a DSP
+ * @name: name for this memory entry
+ * @dev_addr: device address for the memory entry
+ */
+struct k3_rproc_mem_data {
+ const char *name;
+ const u32 dev_addr;
+};
+
+/**
+ * struct k3_rproc_dev_data - device data structure for a DSP
+ * @mems: pointer to memory definitions for a DSP
+ * @num_mems: number of memory regions in @mems
+ * @boot_align_addr: boot vector address alignment granularity
+ * @uses_lreset: flag to denote the need for local reset management
+ */
+struct k3_rproc_dev_data {
+ const struct k3_rproc_mem_data *mems;
+ u32 num_mems;
+ u32 boot_align_addr;
+ bool uses_lreset;
+};
+
+/**
+ * struct k3_rproc - k3 remote processor driver structure
+ * @dev: cached device pointer
+ * @rproc: remoteproc device handle
+ * @mem: internal memory regions data
+ * @num_mems: number of internal memory regions
+ * @rmem: reserved memory regions data
+ * @num_rmems: number of reserved memory regions
+ * @reset: reset control handle
+ * @data: pointer to device data
+ * @tsp: TI-SCI processor control handle
+ * @ti_sci: TI-SCI handle
+ * @ti_sci_id: TI-SCI device identifier
+ * @mbox: mailbox channel handle
+ * @client: mailbox client to request the mailbox channel
+ */
+struct k3_rproc {
+ struct device *dev;
+ struct rproc *rproc;
+ struct k3_rproc_mem *mem;
+ int num_mems;
+ struct k3_rproc_mem *rmem;
+ int num_rmems;
+ struct reset_control *reset;
+ const struct k3_rproc_dev_data *data;
+ struct ti_sci_proc *tsp;
+ const struct ti_sci_handle *ti_sci;
+ u32 ti_sci_id;
+ struct mbox_chan *mbox;
+ struct mbox_client client;
+};
+
+void k3_rproc_kick(struct rproc *rproc, int vqid);
+int k3_rproc_reset(struct k3_rproc *kproc);
+int k3_rproc_release(struct k3_rproc *kproc);
+int k3_rproc_request_mbox(struct rproc *rproc);
+int k3_rproc_prepare(struct rproc *rproc);
+int k3_rproc_unprepare(struct rproc *rproc);
+struct resource_table *k3_get_loaded_rsc_table(struct rproc *rproc,
+ size_t *rsc_table_sz);
+void *k3_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len,
+ bool *is_iomem);
+int k3_rproc_of_get_memories(struct platform_device *pdev,
+ struct k3_rproc *kproc);
+int k3_reserved_mem_init(struct k3_rproc *kproc);
+void k3_reserved_mem_exit(struct k3_rproc *kproc);
+struct ti_sci_proc *k3_rproc_of_get_tsp(struct device *dev,
+ const struct ti_sci_handle *sci);
+#endif /* REMOTEPROC_TI_K3_COMMON_H */
--
2.34.1