linux/drivers/platform/x86/intel/pmt/class.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Intel Platform Monitory Technology Telemetry driver
 *
 * Copyright (c) 2020, Intel Corporation.
 * All Rights Reserved.
 *
 * Author: "Alexander Duyck" <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/pci.h>

#include "../vsec.h"
#include "class.h"

#define PMT_XA_START …
#define PMT_XA_MAX …
#define PMT_XA_LIMIT …
#define GUID_SPR_PUNIT …

bool intel_pmt_is_early_client_hw(struct device *dev)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

static inline int
pmt_memcpy64_fromio(void *to, const u64 __iomem *from, size_t count)
{ … }

/*
 * sysfs
 */
static ssize_t
intel_pmt_read(struct file *filp, struct kobject *kobj,
	       struct bin_attribute *attr, char *buf, loff_t off,
	       size_t count)
{ … }

static int
intel_pmt_mmap(struct file *filp, struct kobject *kobj,
		struct bin_attribute *attr, struct vm_area_struct *vma)
{ … }

static ssize_t
guid_show(struct device *dev, struct device_attribute *attr, char *buf)
{ … }
static DEVICE_ATTR_RO(guid);

static ssize_t size_show(struct device *dev, struct device_attribute *attr,
			 char *buf)
{ … }
static DEVICE_ATTR_RO(size);

static ssize_t
offset_show(struct device *dev, struct device_attribute *attr, char *buf)
{ … }
static DEVICE_ATTR_RO(offset);

static struct attribute *intel_pmt_attrs[] = …;
ATTRIBUTE_GROUPS(…);

static struct class intel_pmt_class = …;

static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
				    struct intel_vsec_device *ivdev,
				    struct resource *disc_res)
{ … }

static int intel_pmt_dev_register(struct intel_pmt_entry *entry,
				  struct intel_pmt_namespace *ns,
				  struct device *parent)
{ … }

int intel_pmt_dev_create(struct intel_pmt_entry *entry, struct intel_pmt_namespace *ns,
			 struct intel_vsec_device *intel_vsec_dev, int idx)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
			   struct intel_pmt_namespace *ns)
{ … }
EXPORT_SYMBOL_NS_GPL(…);

static int __init pmt_class_init(void)
{ … }

static void __exit pmt_class_exit(void)
{ … }

module_init(…) …;
module_exit(pmt_class_exit);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;