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Linux/arch/x86/events/intel/pt.h

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Diff markup

Differences between /arch/x86/events/intel/pt.h (Architecture m68k) and /arch/mips/events/intel/pt.h (Architecture mips)


  1 /* SPDX-License-Identifier: GPL-2.0-only */         1 
  2 /*                                                
  3  * Intel(R) Processor Trace PMU driver for per    
  4  * Copyright (c) 2013-2014, Intel Corporation.    
  5  *                                                
  6  * Intel PT is specified in the Intel Architec    
  7  * Programming Reference:                         
  8  * http://software.intel.com/en-us/intel-isa-e    
  9  */                                               
 10                                                   
 11 #ifndef __INTEL_PT_H__                            
 12 #define __INTEL_PT_H__                            
 13                                                   
 14 /*                                                
 15  * Single-entry ToPA: when this close to regio    
 16  * buffers to avoid losing data.                  
 17  */                                               
 18 #define TOPA_PMI_MARGIN 512                       
 19                                                   
 20 #define TOPA_SHIFT 12                             
 21                                                   
 22 static inline unsigned int sizes(unsigned int     
 23 {                                                 
 24         return 1 << (tsz + TOPA_SHIFT);           
 25 };                                                
 26                                                   
 27 struct topa_entry {                               
 28         u64     end     : 1;                      
 29         u64     rsvd0   : 1;                      
 30         u64     intr    : 1;                      
 31         u64     rsvd1   : 1;                      
 32         u64     stop    : 1;                      
 33         u64     rsvd2   : 1;                      
 34         u64     size    : 4;                      
 35         u64     rsvd3   : 2;                      
 36         u64     base    : 40;                     
 37         u64     rsvd4   : 12;                     
 38 };                                                
 39                                                   
 40 /* TSC to Core Crystal Clock Ratio */             
 41 #define CPUID_TSC_LEAF          0x15              
 42                                                   
 43 struct pt_pmu {                                   
 44         struct pmu              pmu;              
 45         u32                     caps[PT_CPUID_    
 46         bool                    vmx;              
 47         bool                    branch_en_alwa    
 48         unsigned long           max_nonturbo_r    
 49         unsigned int            tsc_art_num;      
 50         unsigned int            tsc_art_den;      
 51 };                                                
 52                                                   
 53 /**                                               
 54  * struct pt_buffer - buffer configuration; on    
 55  *              cpu, depending on perf event c    
 56  * @tables:     list of ToPA tables in this bu    
 57  * @first:      shorthand for first topa table    
 58  * @last:       shorthand for last topa table     
 59  * @cur:        current topa table                
 60  * @nr_pages:   buffer size in pages              
 61  * @cur_idx:    current output region's index     
 62  * @output_off: offset within the current outp    
 63  * @data_size:  running total of the amount of    
 64  * @lost:       if data was lost/truncated        
 65  * @head:       logical write offset inside th    
 66  * @snapshot:   if this is for a snapshot/over    
 67  * @single:     use Single Range Output instea    
 68  * @stop_pos:   STOP topa entry index             
 69  * @intr_pos:   INT topa entry index              
 70  * @stop_te:    STOP topa entry pointer           
 71  * @intr_te:    INT topa entry pointer            
 72  * @data_pages: array of pages from perf          
 73  * @topa_index: table of topa entries indexed     
 74  */                                               
 75 struct pt_buffer {                                
 76         struct list_head        tables;           
 77         struct topa             *first, *last,    
 78         unsigned int            cur_idx;          
 79         size_t                  output_off;       
 80         unsigned long           nr_pages;         
 81         local_t                 data_size;        
 82         local64_t               head;             
 83         bool                    snapshot;         
 84         bool                    single;           
 85         long                    stop_pos, intr    
 86         struct topa_entry       *stop_te, *int    
 87         void                    **data_pages;     
 88 };                                                
 89                                                   
 90 #define PT_FILTERS_NUM  4                         
 91                                                   
 92 /**                                               
 93  * struct pt_filter - IP range filter configur    
 94  * @msr_a:      range start, goes to RTIT_ADDR    
 95  * @msr_b:      range end, goes to RTIT_ADDRn_    
 96  * @config:     4-bit field in RTIT_CTL           
 97  */                                               
 98 struct pt_filter {                                
 99         unsigned long   msr_a;                    
100         unsigned long   msr_b;                    
101         unsigned long   config;                   
102 };                                                
103                                                   
104 /**                                               
105  * struct pt_filters - IP range filtering cont    
106  * @filter:     filters defined for this conte    
107  * @nr_filters: number of defined filters in t    
108  */                                               
109 struct pt_filters {                               
110         struct pt_filter        filter[PT_FILT    
111         unsigned int            nr_filters;       
112 };                                                
113                                                   
114 /**                                               
115  * struct pt - per-cpu pt context                 
116  * @handle:             perf output handle        
117  * @filters:            last configured filter    
118  * @handle_nmi:         do handle PT PMI on th    
119  * @vmx_on:             1 if VMX is ON on this    
120  * @output_base:        cached RTIT_OUTPUT_BAS    
121  * @output_mask:        cached RTIT_OUTPUT_MAS    
122  */                                               
123 struct pt {                                       
124         struct perf_output_handle handle;         
125         struct pt_filters       filters;          
126         int                     handle_nmi;       
127         int                     vmx_on;           
128         u64                     output_base;      
129         u64                     output_mask;      
130 };                                                
131                                                   
132 #endif /* __INTEL_PT_H__ */                       
133                                                   

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