1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _INTEL_PMT_CLASS_H
3 #define _INTEL_PMT_CLASS_H
4 
5 #include <linux/xarray.h>
6 #include <linux/types.h>
7 #include <linux/bits.h>
8 #include <linux/err.h>
9 #include <linux/io.h>
10 
11 #include "../vsec.h"
12 
13 /* PMT access types */
14 #define ACCESS_BARID		2
15 #define ACCESS_LOCAL		3
16 
17 /* PMT discovery base address/offset register layout */
18 #define GET_BIR(v)		((v) & GENMASK(2, 0))
19 #define GET_ADDRESS(v)		((v) & GENMASK(31, 3))
20 
21 struct intel_pmt_entry {
22 	struct bin_attribute	pmt_bin_attr;
23 	struct kobject		*kobj;
24 	void __iomem		*disc_table;
25 	void __iomem		*base;
26 	unsigned long		base_addr;
27 	size_t			size;
28 	u32			guid;
29 	int			devid;
30 };
31 
32 struct intel_pmt_header {
33 	u32	base_offset;
34 	u32	size;
35 	u32	guid;
36 	u8	access_type;
37 };
38 
39 struct intel_pmt_namespace {
40 	const char *name;
41 	struct xarray *xa;
42 	const struct attribute_group *attr_grp;
43 	int (*pmt_header_decode)(struct intel_pmt_entry *entry,
44 				 struct intel_pmt_header *header,
45 				 struct device *dev);
46 };
47 
48 bool intel_pmt_is_early_client_hw(struct device *dev);
49 int intel_pmt_dev_create(struct intel_pmt_entry *entry,
50 			 struct intel_pmt_namespace *ns,
51 			 struct intel_vsec_device *dev, int idx);
52 void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
53 			   struct intel_pmt_namespace *ns);
54 #endif
55