tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2025 AIROHA Inc
4 * Author: Lorenzo Bianconi <lorenzo@kernel.org>
5 */
6
7#define NPU_NUM_CORES 8
8
9struct airoha_npu {
10 struct device *dev;
11 struct regmap *regmap;
12
13 struct airoha_npu_core {
14 struct airoha_npu *npu;
15 /* protect concurrent npu memory accesses */
16 spinlock_t lock;
17 struct work_struct wdt_work;
18 } cores[NPU_NUM_CORES];
19
20 struct airoha_foe_stats __iomem *stats;
21
22 struct {
23 int (*ppe_init)(struct airoha_npu *npu);
24 int (*ppe_deinit)(struct airoha_npu *npu);
25 int (*ppe_flush_sram_entries)(struct airoha_npu *npu,
26 dma_addr_t foe_addr,
27 int sram_num_entries);
28 int (*ppe_foe_commit_entry)(struct airoha_npu *npu,
29 dma_addr_t foe_addr,
30 u32 entry_size, u32 hash,
31 bool ppe2);
32 } ops;
33};
34
35struct airoha_npu *airoha_npu_get(struct device *dev, dma_addr_t *stats_addr);
36void airoha_npu_put(struct airoha_npu *npu);