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, 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 73