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 device; 23 struct pci_dev; 24 extern struct class intel_pmt_class; 25 26 struct telem_endpoint { 27 struct device *dev; 28 struct telem_header header; 29 struct pmt_callbacks *cb; 30 void __iomem *base; 31 bool present; 32 struct kref kref; 33 }; 34 35 struct intel_pmt_header { 36 u32 base_offset; 37 u32 size; 38 u32 guid; 39 u8 access_type; 40 }; 41 42 struct intel_pmt_entry { 43 struct telem_endpoint *ep; 44 struct pci_dev *pcidev; 45 struct intel_pmt_header header; 46 struct bin_attribute pmt_bin_attr; 47 const struct attribute_group *attr_grp; 48 struct kobject *kobj; 49 void __iomem *disc_table; 50 void __iomem *base; 51 struct pmt_callbacks *cb; 52 unsigned long base_addr; 53 size_t size; 54 u64 feature_flags; 55 u32 guid; 56 u32 num_rmids; /* Number of Resource Monitoring IDs */ 57 int devid; 58 }; 59 60 struct intel_pmt_namespace { 61 const char *name; 62 struct xarray *xa; 63 int (*pmt_header_decode)(struct intel_pmt_entry *entry, 64 struct device *dev); 65 int (*pmt_add_endpoint)(struct intel_vsec_device *ivdev, 66 struct intel_pmt_entry *entry); 67 }; 68 69 int pmt_telem_read_mmio(struct device *dev, struct pmt_callbacks *cb, u32 guid, void *buf, 70 void __iomem *addr, loff_t off, u32 count); 71 bool intel_pmt_is_early_client_hw(struct device *dev); 72 int intel_pmt_dev_create(struct intel_pmt_entry *entry, 73 struct intel_pmt_namespace *ns, 74 struct intel_vsec_device *dev, int idx); 75 void intel_pmt_dev_destroy(struct intel_pmt_entry *entry, 76 struct intel_pmt_namespace *ns); 77 #if IS_ENABLED(CONFIG_INTEL_PMT_DISCOVERY) 78 void intel_pmt_get_features(struct intel_pmt_entry *entry); 79 #else 80 static inline void intel_pmt_get_features(struct intel_pmt_entry *entry) {} 81 #endif 82 83 #endif 84