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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (c) 2023 Intel Corporation. */
#ifndef ADF_TELEMETRY_H
#define ADF_TELEMETRY_H
#include <linux/bits.h>
#include <linux/mutex.h>
#include <linux/types.h>
#include <linux/workqueue.h>
#include "icp_qat_fw_init_admin.h"
struct adf_accel_dev;
struct adf_tl_dbg_counter;
struct dentry;
#define ADF_TL_SL_CNT_COUNT \
(sizeof(struct icp_qat_fw_init_admin_slice_cnt) / sizeof(__u8))
#define TL_CAPABILITY_BIT BIT(1)
/* Interval within device writes data to DMA region. Value in milliseconds. */
#define ADF_TL_DATA_WR_INTERVAL_MS 1000
/* Interval within timer interrupt should be handled. Value in milliseconds. */
#define ADF_TL_TIMER_INT_MS (ADF_TL_DATA_WR_INTERVAL_MS / 2)
#define ADF_TL_RP_REGS_DISABLED (0xff)
struct adf_tl_hw_data {
size_t layout_sz;
size_t slice_reg_sz;
size_t rp_reg_sz;
size_t msg_cnt_off;
const struct adf_tl_dbg_counter *dev_counters;
const struct adf_tl_dbg_counter *sl_util_counters;
const struct adf_tl_dbg_counter *sl_exec_counters;
const struct adf_tl_dbg_counter *rp_counters;
u8 num_hbuff;
u8 cpp_ns_per_cycle;
u8 bw_units_to_bytes;
u8 num_dev_counters;
u8 num_rp_counters;
u8 max_rp;
};
struct adf_telemetry {
struct adf_accel_dev *accel_dev;
atomic_t state;
u32 hbuffs;
int hb_num;
u32 msg_cnt;
dma_addr_t regs_data_p; /* bus address for DMA mapping */
void *regs_data; /* virtual address for DMA mapping */
/**
* @regs_hist_buff: array of pointers to copies of the last @hbuffs
* values of @regs_data
*/
void **regs_hist_buff;
struct dentry *dbg_dir;
u8 *rp_num_indexes;
/**
* @regs_hist_lock: protects from race conditions between write and read
* to the copies referenced by @regs_hist_buff
*/
struct mutex regs_hist_lock;
/**
* @wr_lock: protects from concurrent writes to debugfs telemetry files
*/
struct mutex wr_lock;
struct delayed_work work_ctx;
struct icp_qat_fw_init_admin_slice_cnt slice_cnt;
};
#ifdef CONFIG_DEBUG_FS
int adf_tl_init(struct adf_accel_dev *accel_dev);
int adf_tl_start(struct adf_accel_dev *accel_dev);
void adf_tl_stop(struct adf_accel_dev *accel_dev);
void adf_tl_shutdown(struct adf_accel_dev *accel_dev);
int adf_tl_run(struct adf_accel_dev *accel_dev, int state);
int adf_tl_halt(struct adf_accel_dev *accel_dev);
#else
static inline int adf_tl_init(struct adf_accel_dev *accel_dev)
{
return 0;
}
static inline int adf_tl_start(struct adf_accel_dev *accel_dev)
{
return 0;
}
static inline void adf_tl_stop(struct adf_accel_dev *accel_dev)
{
}
static inline void adf_tl_shutdown(struct adf_accel_dev *accel_dev)
{
}
#endif /* CONFIG_DEBUG_FS */
#endif /* ADF_TELEMETRY_H */
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