class.c (2fbe82037ab2513275b9d97fe4fd9947df26e960) class.c (d9a0788093565c300f7c8dd034dbfa6ac4da9aa6)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Intel Platform Monitory Technology Telemetry driver
4 *
5 * Copyright (c) 2020, Intel Corporation.
6 * All Rights Reserved.
7 *
8 * Author: "Alexander Duyck" <alexander.h.duyck@linux.intel.com>
9 */
10
11#include <linux/kernel.h>
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Intel Platform Monitory Technology Telemetry driver
4 *
5 * Copyright (c) 2020, Intel Corporation.
6 * All Rights Reserved.
7 *
8 * Author: "Alexander Duyck" <alexander.h.duyck@linux.intel.com>
9 */
10
11#include <linux/kernel.h>
12#include <linux/log2.h>
12#include <linux/intel_vsec.h>
13#include <linux/io-64-nonatomic-lo-hi.h>
14#include <linux/module.h>
15#include <linux/mm.h>
16#include <linux/pci.h>
13#include <linux/intel_vsec.h>
14#include <linux/io-64-nonatomic-lo-hi.h>
15#include <linux/module.h>
16#include <linux/mm.h>
17#include <linux/pci.h>
18#include <linux/sysfs.h>
17
18#include "class.h"
19
20#define PMT_XA_START 1
21#define PMT_XA_MAX INT_MAX
22#define PMT_XA_LIMIT XA_LIMIT(PMT_XA_START, PMT_XA_MAX)
23#define GUID_SPR_PUNIT 0x9956f43f
24

--- 136 unchanged lines hidden (view full) ---

161static DEVICE_ATTR_RO(offset);
162
163static struct attribute *intel_pmt_attrs[] = {
164 &dev_attr_guid.attr,
165 &dev_attr_size.attr,
166 &dev_attr_offset.attr,
167 NULL
168};
19
20#include "class.h"
21
22#define PMT_XA_START 1
23#define PMT_XA_MAX INT_MAX
24#define PMT_XA_LIMIT XA_LIMIT(PMT_XA_START, PMT_XA_MAX)
25#define GUID_SPR_PUNIT 0x9956f43f
26

--- 136 unchanged lines hidden (view full) ---

163static DEVICE_ATTR_RO(offset);
164
165static struct attribute *intel_pmt_attrs[] = {
166 &dev_attr_guid.attr,
167 &dev_attr_size.attr,
168 &dev_attr_offset.attr,
169 NULL
170};
169ATTRIBUTE_GROUPS(intel_pmt);
170
171
171static struct class intel_pmt_class = {
172static umode_t intel_pmt_attr_visible(struct kobject *kobj,
173 struct attribute *attr, int n)
174{
175 struct device *dev = container_of(kobj, struct device, kobj);
176 struct auxiliary_device *auxdev = to_auxiliary_dev(dev->parent);
177 struct intel_vsec_device *ivdev = auxdev_to_ivdev(auxdev);
178
179 /*
180 * Place the discovery features folder in /sys/class/intel_pmt, but
181 * exclude the common attributes as they are not applicable.
182 */
183 if (ivdev->cap_id == ilog2(VSEC_CAP_DISCOVERY))
184 return 0;
185
186 return attr->mode;
187}
188
189static bool intel_pmt_group_visible(struct kobject *kobj)
190{
191 return true;
192}
193DEFINE_SYSFS_GROUP_VISIBLE(intel_pmt);
194
195static const struct attribute_group intel_pmt_group = {
196 .attrs = intel_pmt_attrs,
197 .is_visible = SYSFS_GROUP_VISIBLE(intel_pmt),
198};
199__ATTRIBUTE_GROUPS(intel_pmt);
200
201struct class intel_pmt_class = {
172 .name = "intel_pmt",
173 .dev_groups = intel_pmt_groups,
174};
202 .name = "intel_pmt",
203 .dev_groups = intel_pmt_groups,
204};
205EXPORT_SYMBOL_GPL(intel_pmt_class);
175
176static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
177 struct intel_vsec_device *ivdev,
178 struct resource *disc_res)
179{
180 struct pci_dev *pci_dev = ivdev->pcidev;
181 struct device *dev = &ivdev->auxdev.dev;
182 struct intel_pmt_header *header = &entry->header;

--- 120 unchanged lines hidden (view full) ---

303 ret = PTR_ERR(entry->base);
304 goto fail_ioremap;
305 }
306
307 sysfs_bin_attr_init(&entry->pmt_bin_attr);
308 entry->pmt_bin_attr.attr.name = ns->name;
309 entry->pmt_bin_attr.attr.mode = 0440;
310 entry->pmt_bin_attr.mmap = intel_pmt_mmap;
206
207static int intel_pmt_populate_entry(struct intel_pmt_entry *entry,
208 struct intel_vsec_device *ivdev,
209 struct resource *disc_res)
210{
211 struct pci_dev *pci_dev = ivdev->pcidev;
212 struct device *dev = &ivdev->auxdev.dev;
213 struct intel_pmt_header *header = &entry->header;

--- 120 unchanged lines hidden (view full) ---

334 ret = PTR_ERR(entry->base);
335 goto fail_ioremap;
336 }
337
338 sysfs_bin_attr_init(&entry->pmt_bin_attr);
339 entry->pmt_bin_attr.attr.name = ns->name;
340 entry->pmt_bin_attr.attr.mode = 0440;
341 entry->pmt_bin_attr.mmap = intel_pmt_mmap;
311 entry->pmt_bin_attr.read = intel_pmt_read;
342 entry->pmt_bin_attr.read_new = intel_pmt_read;
312 entry->pmt_bin_attr.size = entry->size;
313
314 ret = sysfs_create_bin_file(&dev->kobj, &entry->pmt_bin_attr);
315 if (ret)
316 goto fail_ioremap;
317
318 if (ns->pmt_add_endpoint) {
319 ret = ns->pmt_add_endpoint(ivdev, entry);

--- 76 unchanged lines hidden --- 		343 entry->pmt_bin_attr.size = entry->size;
344
345 ret = sysfs_create_bin_file(&dev->kobj, &entry->pmt_bin_attr);
346 if (ret)
347 goto fail_ioremap;
348
349 if (ns->pmt_add_endpoint) {
350 ret = ns->pmt_add_endpoint(ivdev, entry);

--- 76 unchanged lines hidden ---