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Linux/arch/sparc/lib/NG2copy_to_user.S

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Diff markup

Differences between /arch/sparc/lib/NG2copy_to_user.S (Version linux-6.12-rc7) and /arch/i386/lib/NG2copy_to_user.S (Version linux-5.17.15)


  1 /* SPDX-License-Identifier: GPL-2.0 */            
  2 /* NG2copy_to_user.S: Niagara-2 optimized copy    
  3  *                                                
  4  * Copyright (C) 2007 David S. Miller (davem@d    
  5  */                                               
  6                                                   
  7 #define EX_ST(x,y)              \                 
  8 98:     x;                      \                 
  9         .section __ex_table,"a";\                 
 10         .align 4;               \                 
 11         .word 98b, y;           \                 
 12         .text;                  \                 
 13         .align 4;                                 
 14                                                   
 15 #define EX_ST_FP(x,y)           \                 
 16 98:     x;                      \                 
 17         .section __ex_table,"a";\                 
 18         .align 4;               \                 
 19         .word 98b, y##_fp;      \                 
 20         .text;                  \                 
 21         .align 4;                                 
 22                                                   
 23 #ifndef ASI_AIUS                                  
 24 #define ASI_AIUS        0x11                      
 25 #endif                                            
 26                                                   
 27 #ifndef ASI_BLK_AIUS_4V                           
 28 #define ASI_BLK_AIUS_4V 0x17                      
 29 #endif                                            
 30                                                   
 31 #ifndef ASI_BLK_INIT_QUAD_LDD_AIUS                
 32 #define ASI_BLK_INIT_QUAD_LDD_AIUS 0x23           
 33 #endif                                            
 34                                                   
 35 #define FUNC_NAME               NG2copy_to_use    
 36 #define STORE(type,src,addr)    type##a src, [    
 37 #define STORE_ASI               ASI_BLK_INIT_Q    
 38 #define STORE_BLK(src,addr)     stda src, [add    
 39 #define EX_RETVAL(x)            0                 
 40                                                   
 41 #ifdef __KERNEL__                                 
 42         /* Writing to %asi is _expensive_ so w    
 43          * Reading %asi to check for KERNEL_DS    
 44          * cheap.                                 
 45          */                                       
 46 #define PREAMBLE                                  
 47         rd              %asi, %g1;                
 48         cmp             %g1, ASI_AIUS;            
 49         bne,pn          %icc, raw_copy_in_user    
 50          nop                                      
 51 #endif                                            
 52                                                   
 53 #include "NG2memcpy.S"                            
                                                      

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