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;
23
24struct telem_endpoint {
25	struct pci_dev		*pcidev;
26	struct telem_header	header;
27	struct pmt_callbacks	*cb;
28	void __iomem		*base;
29	bool			present;
30	struct kref		kref;
31};
32
33struct intel_pmt_header {
34	u32	base_offset;
35	u32	size;
36	u32	guid;
37	u8	access_type;
38};
39
40struct intel_pmt_entry {
41	struct telem_endpoint	*ep;
42	struct intel_pmt_header	header;
43	struct bin_attribute	pmt_bin_attr;
44	struct kobject		*kobj;
45	void __iomem		*disc_table;
46	void __iomem		*base;
47	struct pmt_callbacks	*cb;
48	unsigned long		base_addr;
49	size_t			size;
50	u32			guid;
51	int			devid;
52};
53
54struct intel_pmt_namespace {
55	const char *name;
56	struct xarray *xa;
57	const struct attribute_group *attr_grp;
58	int (*pmt_header_decode)(struct intel_pmt_entry *entry,
59				 struct device *dev);
60	int (*pmt_add_endpoint)(struct intel_vsec_device *ivdev,
61				struct intel_pmt_entry *entry);
62};
63
64int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf,
65			void __iomem *addr, loff_t off, u32 count);
66bool intel_pmt_is_early_client_hw(struct device *dev);
67int intel_pmt_dev_create(struct intel_pmt_entry *entry,
68			 struct intel_pmt_namespace *ns,
69			 struct intel_vsec_device *dev, int idx);
70void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
71			   struct intel_pmt_namespace *ns);
72#endif