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Linux/arch/loongarch/mm/page.S

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Diff markup

Differences between /arch/loongarch/mm/page.S (Version linux-6.11.5) and /arch/m68k/mm/page.S (Version linux-5.2.21)


  1 /* SPDX-License-Identifier: GPL-2.0 */            
  2 /*                                                
  3  * Copyright (C) 2020-2022 Loongson Technology    
  4  */                                               
  5 #include <linux/export.h>                         
  6 #include <linux/linkage.h>                        
  7 #include <asm/asm.h>                              
  8 #include <asm/page.h>                             
  9 #include <asm/regdef.h>                           
 10                                                   
 11         .align 5                                  
 12 SYM_FUNC_START(clear_page)                        
 13         lu12i.w t0, 1 << (PAGE_SHIFT - 12)        
 14         add.d   t0, t0, a0                        
 15 1:                                                
 16         st.d    zero, a0, 0                       
 17         st.d    zero, a0, 8                       
 18         st.d    zero, a0, 16                      
 19         st.d    zero, a0, 24                      
 20         st.d    zero, a0, 32                      
 21         st.d    zero, a0, 40                      
 22         st.d    zero, a0, 48                      
 23         st.d    zero, a0, 56                      
 24         addi.d  a0,   a0, 128                     
 25         st.d    zero, a0, -64                     
 26         st.d    zero, a0, -56                     
 27         st.d    zero, a0, -48                     
 28         st.d    zero, a0, -40                     
 29         st.d    zero, a0, -32                     
 30         st.d    zero, a0, -24                     
 31         st.d    zero, a0, -16                     
 32         st.d    zero, a0, -8                      
 33         bne     t0,   a0, 1b                      
 34                                                   
 35         jr      ra                                
 36 SYM_FUNC_END(clear_page)                          
 37 EXPORT_SYMBOL(clear_page)                         
 38                                                   
 39 .align 5                                          
 40 SYM_FUNC_START(copy_page)                         
 41         lu12i.w t8, 1 << (PAGE_SHIFT - 12)        
 42         add.d   t8, t8, a0                        
 43 1:                                                
 44         ld.d    t0, a1, 0                         
 45         ld.d    t1, a1, 8                         
 46         ld.d    t2, a1, 16                        
 47         ld.d    t3, a1, 24                        
 48         ld.d    t4, a1, 32                        
 49         ld.d    t5, a1, 40                        
 50         ld.d    t6, a1, 48                        
 51         ld.d    t7, a1, 56                        
 52                                                   
 53         st.d    t0, a0, 0                         
 54         st.d    t1, a0, 8                         
 55         ld.d    t0, a1, 64                        
 56         ld.d    t1, a1, 72                        
 57         st.d    t2, a0, 16                        
 58         st.d    t3, a0, 24                        
 59         ld.d    t2, a1, 80                        
 60         ld.d    t3, a1, 88                        
 61         st.d    t4, a0, 32                        
 62         st.d    t5, a0, 40                        
 63         ld.d    t4, a1, 96                        
 64         ld.d    t5, a1, 104                       
 65         st.d    t6, a0, 48                        
 66         st.d    t7, a0, 56                        
 67         ld.d    t6, a1, 112                       
 68         ld.d    t7, a1, 120                       
 69         addi.d  a0, a0, 128                       
 70         addi.d  a1, a1, 128                       
 71                                                   
 72         st.d    t0, a0, -64                       
 73         st.d    t1, a0, -56                       
 74         st.d    t2, a0, -48                       
 75         st.d    t3, a0, -40                       
 76         st.d    t4, a0, -32                       
 77         st.d    t5, a0, -24                       
 78         st.d    t6, a0, -16                       
 79         st.d    t7, a0, -8                        
 80                                                   
 81         bne     t8, a0, 1b                        
 82         jr      ra                                
 83 SYM_FUNC_END(copy_page)                           
 84 EXPORT_SYMBOL(copy_page)                          
                                                      

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