drivers/platform/x86/intel/pmt/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
  22 struct pci_dev;
  23
  24 struct 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
  33 struct intel_pmt_header {
  34         u32     base_offset;
  35         u32     size;
  36         u32     guid;
  37         u8      access_type;
  38 };
  39
  40 struct 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
  54 struct 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
  64 int 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);
  66 bool intel_pmt_is_early_client_hw(struct device *dev);
  67 int intel_pmt_dev_create(struct intel_pmt_entry *entry,
  68                          struct intel_pmt_namespace *ns,
  69                          struct intel_vsec_device *dev, int idx);
  70 void intel_pmt_dev_destroy(struct intel_pmt_entry *entry,
  71                            struct intel_pmt_namespace *ns);
  72 #endif