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Linux/arch/x86/kvm/i8254.h

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Diff markup

Differences between /arch/x86/kvm/i8254.h (Version linux-6.12-rc7) and /arch/m68k/kvm/i8254.h (Version linux-2.4.37.11)


  1 /* SPDX-License-Identifier: GPL-2.0 */              1 
  2 #ifndef __I8254_H                                 
  3 #define __I8254_H                                 
  4                                                   
  5 #include <linux/kthread.h>                        
  6                                                   
  7 #include <kvm/iodev.h>                            
  8                                                   
  9 struct kvm_kpit_channel_state {                   
 10         u32 count; /* can be 65536 */             
 11         u16 latched_count;                        
 12         u8 count_latched;                         
 13         u8 status_latched;                        
 14         u8 status;                                
 15         u8 read_state;                            
 16         u8 write_state;                           
 17         u8 write_latch;                           
 18         u8 rw_mode;                               
 19         u8 mode;                                  
 20         u8 bcd; /* not supported */               
 21         u8 gate; /* timer start */                
 22         ktime_t count_load_time;                  
 23 };                                                
 24                                                   
 25 struct kvm_kpit_state {                           
 26         /* All members before "struct mutex lo    
 27         struct kvm_kpit_channel_state channels    
 28         u32 flags;                                
 29         bool is_periodic;                         
 30         s64 period;                               
 31         struct hrtimer timer;                     
 32                                                   
 33         struct mutex lock;                        
 34         atomic_t reinject;                        
 35         atomic_t pending; /* accumulated trigg    
 36         atomic_t irq_ack;                         
 37         struct kvm_irq_ack_notifier irq_ack_no    
 38 };                                                
 39                                                   
 40 struct kvm_pit {                                  
 41         struct kvm_io_device dev;                 
 42         struct kvm_io_device speaker_dev;         
 43         struct kvm *kvm;                          
 44         struct kvm_kpit_state pit_state;          
 45         int irq_source_id;                        
 46         struct kvm_irq_mask_notifier mask_noti    
 47         struct kthread_worker *worker;            
 48         struct kthread_work expired;              
 49 };                                                
 50                                                   
 51 #define KVM_PIT_BASE_ADDRESS        0x40          
 52 #define KVM_SPEAKER_BASE_ADDRESS    0x61          
 53 #define KVM_PIT_MEM_LENGTH          4             
 54 #define KVM_PIT_FREQ                1193181       
 55 #define KVM_MAX_PIT_INTR_INTERVAL   HZ / 100      
 56 #define KVM_PIT_CHANNEL_MASK        0x3           
 57                                                   
 58 struct kvm_pit *kvm_create_pit(struct kvm *kvm    
 59 void kvm_free_pit(struct kvm *kvm);               
 60                                                   
 61 void kvm_pit_load_count(struct kvm_pit *pit, i    
 62                 int hpet_legacy_start);           
 63 void kvm_pit_set_reinject(struct kvm_pit *pit,    
 64                                                   
 65 #endif                                            
 66                                                   

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