1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright (c) 2023 Intel Corporation. */
 3#ifndef ADF_TELEMETRY_H
 4#define ADF_TELEMETRY_H
 5
 6#include <linux/bits.h>
 7#include <linux/mutex.h>
 8#include <linux/types.h>
 9#include <linux/workqueue.h>
10
11#include "icp_qat_fw_init_admin.h"
12
13struct adf_accel_dev;
14struct adf_tl_dbg_counter;
15struct dentry;
16
17#define ADF_TL_SL_CNT_COUNT		\
18	(sizeof(struct icp_qat_fw_init_admin_slice_cnt) / sizeof(__u8))
19
20#define TL_CAPABILITY_BIT		BIT(1)
21/* Interval within device writes data to DMA region. Value in milliseconds. */
22#define ADF_TL_DATA_WR_INTERVAL_MS	1000
23/* Interval within timer interrupt should be handled. Value in milliseconds. */
24#define ADF_TL_TIMER_INT_MS		(ADF_TL_DATA_WR_INTERVAL_MS / 2)
25
26#define ADF_TL_RP_REGS_DISABLED		(0xff)
27
28struct adf_tl_hw_data {
29	size_t layout_sz;
30	size_t slice_reg_sz;
31	size_t rp_reg_sz;
32	size_t msg_cnt_off;
33	const struct adf_tl_dbg_counter *dev_counters;
34	const struct adf_tl_dbg_counter *sl_util_counters;
35	const struct adf_tl_dbg_counter *sl_exec_counters;
36	const struct adf_tl_dbg_counter *rp_counters;
37	u8 num_hbuff;
38	u8 cpp_ns_per_cycle;
39	u8 bw_units_to_bytes;
40	u8 num_dev_counters;
41	u8 num_rp_counters;
42	u8 max_rp;
43};
44
45struct adf_telemetry {
46	struct adf_accel_dev *accel_dev;
47	atomic_t state;
48	u32 hbuffs;
49	int hb_num;
50	u32 msg_cnt;
51	dma_addr_t regs_data_p; /* bus address for DMA mapping */
52	void *regs_data; /* virtual address for DMA mapping */
53	/**
54	 * @regs_hist_buff: array of pointers to copies of the last @hbuffs
55	 * values of @regs_data
56	 */
57	void **regs_hist_buff;
58	struct dentry *dbg_dir;
59	u8 *rp_num_indexes;
60	/**
61	 * @regs_hist_lock: protects from race conditions between write and read
62	 * to the copies referenced by @regs_hist_buff
63	 */
64	struct mutex regs_hist_lock;
65	/**
66	 * @wr_lock: protects from concurrent writes to debugfs telemetry files
67	 */
68	struct mutex wr_lock;
69	struct delayed_work work_ctx;
70	struct icp_qat_fw_init_admin_slice_cnt slice_cnt;
71};
72
73#ifdef CONFIG_DEBUG_FS
74int adf_tl_init(struct adf_accel_dev *accel_dev);
75int adf_tl_start(struct adf_accel_dev *accel_dev);
76void adf_tl_stop(struct adf_accel_dev *accel_dev);
77void adf_tl_shutdown(struct adf_accel_dev *accel_dev);
78int adf_tl_run(struct adf_accel_dev *accel_dev, int state);
79int adf_tl_halt(struct adf_accel_dev *accel_dev);
80#else
81static inline int adf_tl_init(struct adf_accel_dev *accel_dev)
82{
83	return 0;
84}
85
86static inline int adf_tl_start(struct adf_accel_dev *accel_dev)
87{
88	return 0;
89}
90
91static inline void adf_tl_stop(struct adf_accel_dev *accel_dev)
92{
93}
94
95static inline void adf_tl_shutdown(struct adf_accel_dev *accel_dev)
96{
97}
98#endif /* CONFIG_DEBUG_FS */
99#endif /* ADF_TELEMETRY_H */