linux/drivers/crypto/intel/qat/qat_common/adf_heartbeat.c

// SPDX-License-Identifier: GPL-2.0-only
/* Copyright(c) 2023 Intel Corporation */

#include <linux/dev_printk.h>
#include <linux/dma-mapping.h>
#include <linux/export.h>
#include <linux/kernel.h>
#include <linux/kstrtox.h>
#include <linux/overflow.h>
#include <linux/string.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <asm/errno.h>
#include "adf_accel_devices.h"
#include "adf_admin.h"
#include "adf_cfg.h"
#include "adf_cfg_strings.h"
#include "adf_clock.h"
#include "adf_common_drv.h"
#include "adf_heartbeat.h"
#include "adf_transport_internal.h"
#include "icp_qat_fw_init_admin.h"

#define ADF_HB_EMPTY_SIG …

static int adf_hb_check_polling_freq(struct adf_accel_dev *accel_dev)
{ … }

/**
 * validate_hb_ctrs_cnt() - checks if the number of heartbeat counters should
 * be updated by one to support the currently loaded firmware.
 * @accel_dev: Pointer to acceleration device.
 *
 * Return:
 * * true - hb_ctrs must increased by ADF_NUM_PKE_STRAND
 * * false - no changes needed
 */
static bool validate_hb_ctrs_cnt(struct adf_accel_dev *accel_dev)
{ … }

void adf_heartbeat_check_ctrs(struct adf_accel_dev *accel_dev)
{ … }
EXPORT_SYMBOL_GPL(…);

static int get_timer_ticks(struct adf_accel_dev *accel_dev, unsigned int *value)
{ … }

static int check_ae(struct hb_cnt_pair *curr, struct hb_cnt_pair *prev,
		    u16 *count, const size_t hb_ctrs)
{ … }

static int adf_hb_get_status(struct adf_accel_dev *accel_dev)
{ … }

static void adf_heartbeat_reset(struct adf_accel_dev *accel_dev)
{ … }

void adf_heartbeat_status(struct adf_accel_dev *accel_dev,
			  enum adf_device_heartbeat_status *hb_status)
{ … }

int adf_heartbeat_ms_to_ticks(struct adf_accel_dev *accel_dev, unsigned int time_ms,
			      u32 *value)
{ … }

int adf_heartbeat_save_cfg_param(struct adf_accel_dev *accel_dev,
				 unsigned int timer_ms)
{ … }
EXPORT_SYMBOL_GPL(…);

int adf_heartbeat_init(struct adf_accel_dev *accel_dev)
{ … }

int adf_heartbeat_start(struct adf_accel_dev *accel_dev)
{ … }

void adf_heartbeat_shutdown(struct adf_accel_dev *accel_dev)
{ … }