intel/pmt/class.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef _INTEL_PMT_CLASS_H
0003 #define _INTEL_PMT_CLASS_H
0004
0005 #include <linux/xarray.h>
0006 #include <linux/types.h>
0007 #include <linux/bits.h>
0008 #include <linux/err.h>
0009 #include <linux/io.h>
0010
0011 #include "../vsec.h"
0012
0013 /* PMT access types */
0014 #define ACCESS_BARID        2
0015 #define ACCESS_LOCAL        3
0016
0017 /* PMT discovery base address/offset register layout */
0018 #define GET_BIR(v)      ((v) & GENMASK(2, 0))
0019 #define GET_ADDRESS(v)      ((v) & GENMASK(31, 3))
0020
0021 struct intel_pmt_entry {
0022     struct bin_attribute    pmt_bin_attr;
0023     struct kobject      *kobj;
0024     void __iomem        *disc_table;
0025     void __iomem        *base;
0026     unsigned long       base_addr;
0027     size_t          size;
0028     u32         guid;
0029     int         devid;
0030 };
0031
0032 struct intel_pmt_header {
0033     u32 base_offset;
0034     u32 size;
0035     u32 guid;
0036     u8  access_type;
0037 };
0038
0039 struct intel_pmt_namespace {
0040     const char *name;
0041     struct xarray *xa;
0042     const struct attribute_group *attr_grp;
0043     int (*pmt_header_decode)(struct intel_pmt_entry *entry,
0044                  struct intel_pmt_header *header,
0045                  struct device *dev);
0046 };
0047
0048 bool intel_pmt_is_early_client_hw(struct device *dev);
0049 int intel_pmt_dev_create(struct intel_pmt_entry *entry,
0050              struct intel_pmt_namespace *ns,
0051              struct intel_vsec_device *dev, int idx);
0052 void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
0053                struct intel_pmt_namespace *ns);
0054 #endif