class.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _INTEL_PMT_CLASS_H
 3#define _INTEL_PMT_CLASS_H
 4
 5#include <linux/intel_vsec.h>
 6#include <linux/xarray.h>
 7#include <linux/types.h>
 8#include <linux/bits.h>
 9#include <linux/err.h>
10#include <linux/io.h>
11
12#include "telemetry.h"
13
14/* PMT access types */
15#define ACCESS_BARID		2
16#define ACCESS_LOCAL		3
17
18/* PMT discovery base address/offset register layout */
19#define GET_BIR(v)		((v) & GENMASK(2, 0))
20#define GET_ADDRESS(v)		((v) & GENMASK(31, 3))
21
22struct pci_dev;
23extern struct class intel_pmt_class;
24
25struct telem_endpoint {
26	struct pci_dev		*pcidev;
27	struct telem_header	header;
28	struct pmt_callbacks	*cb;
29	void __iomem		*base;
30	bool			present;
31	struct kref		kref;
32};
33
34struct intel_pmt_header {
35	u32	base_offset;
36	u32	size;
37	u32	guid;
38	u8	access_type;
39};
40
41struct intel_pmt_entry {
42	struct telem_endpoint	*ep;
43	struct pci_dev		*pcidev;
44	struct intel_pmt_header	header;
45	struct bin_attribute	pmt_bin_attr;
46	const struct attribute_group *attr_grp;
47	struct kobject		*kobj;
48	void __iomem		*disc_table;
49	void __iomem		*base;
50	struct pmt_callbacks	*cb;
51	unsigned long		base_addr;
52	size_t			size;
53	u64			feature_flags;
54	u32			guid;
55	u32			num_rmids; /* Number of Resource Monitoring IDs */
56	int			devid;
57};
58
59struct intel_pmt_namespace {
60	const char *name;
61	struct xarray *xa;
62	int (*pmt_header_decode)(struct intel_pmt_entry *entry,
63				 struct device *dev);
64	int (*pmt_add_endpoint)(struct intel_vsec_device *ivdev,
65				struct intel_pmt_entry *entry);
66};
67
68int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf,
69			void __iomem *addr, loff_t off, u32 count);
70bool intel_pmt_is_early_client_hw(struct device *dev);
71int intel_pmt_dev_create(struct intel_pmt_entry *entry,
72			 struct intel_pmt_namespace *ns,
73			 struct intel_vsec_device *dev, int idx);
74void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
75			   struct intel_pmt_namespace *ns);
76#if IS_ENABLED(CONFIG_INTEL_PMT_DISCOVERY)
77void intel_pmt_get_features(struct intel_pmt_entry *entry);
78#else
79static inline void intel_pmt_get_features(struct intel_pmt_entry *entry) {}
80#endif
81
82#endif