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 pci_dev *pcidev; 43 struct intel_pmt_header header; 44 struct bin_attribute pmt_bin_attr; 45 struct kobject *kobj; 46 void __iomem *disc_table; 47 void __iomem *base; 48 struct pmt_callbacks *cb; 49 unsigned long base_addr; 50 size_t size; 51 u32 guid; 52 int devid; 53 }; 54 55 struct intel_pmt_namespace { 56 const char *name; 57 struct xarray *xa; 58 const struct attribute_group *attr_grp; 59 int (*pmt_header_decode)(struct intel_pmt_entry *entry, 60 struct device *dev); 61 int (*pmt_add_endpoint)(struct intel_vsec_device *ivdev, 62 struct intel_pmt_entry *entry); 63 }; 64 65 int pmt_telem_read_mmio(struct pci_dev *pdev, struct pmt_callbacks *cb, u32 guid, void *buf, 66 void __iomem *addr, loff_t off, u32 count); 67 bool intel_pmt_is_early_client_hw(struct device *dev); 68 int intel_pmt_dev_create(struct intel_pmt_entry *entry, 69 struct intel_pmt_namespace *ns, 70 struct intel_vsec_device *dev, int idx); 71 void intel_pmt_dev_destroy(struct intel_pmt_entry *entry, 72 struct intel_pmt_namespace *ns); 73 #endif 74