gnu/dist/gdb6/sim/testsuite/frv-elf/cache.s

   1 # run with --memory-region 0xff000000,4 --memory-region 0xfe000000,00404000
   2 ; Exit with return code
   3         .macro exit rc
   4         setlos.p        #1,gr7
   5         setlos          \rc,gr8
   6         tira            gr0,#0
   7         .endm
   8
   9 ; Pass the test case
  10         .macro pass
  11 pass:
  12         setlos.p        #5,gr10
  13         setlos          #1,gr8
  14         setlos          #5,gr7
  15         sethi.p         %hi(passmsg),gr9
  16         setlo           %lo(passmsg),gr9
  17         tira            gr0,#0
  18         exit            #0
  19         .endm
  20
  21 ; Fail the testcase
  22         .macro fail
  23 fail\@:
  24         setlos.p        #5,gr10
  25         setlos          #1,gr8
  26         setlos          #5,gr7
  27         sethi.p         %hi(failmsg),gr9
  28         setlo           %lo(failmsg),gr9
  29         tira            gr0,#0
  30         exit            #1
  31         .endm
  32
  33         .data
  34 failmsg:
  35         .ascii "fail\n"
  36 passmsg:
  37         .ascii "pass\n"
  38
  39         .text
  40         .global _start
  41 _start:
  42         movsg           hsr0,gr10       ; enable insn and data caches
  43         sethi.p         0xc800,gr11     ; in copy-back mode
  44         setlo           0x0000,gr11
  45         or              gr10,gr11,gr10
  46         movgs           gr10,hsr0
  47
  48         sethi.p         0x7,sp
  49         setlo           0x0000,sp
  50
  51         ; fill the cache
  52         sethi.p         %hi(done1),gr10
  53         setlo           %lo(done1),gr10
  54         movgs           gr10,lr
  55         setlos.p        0x1000,gr10
  56         setlos          0x0,gr11
  57         movgs           gr10,lcr
  58 write1: st.p            gr11,@(sp,gr11)
  59         addi.p          gr11,4,gr11
  60         bctrlr.p        1,0
  61         bra             write1
  62 done1:
  63         ; read it back
  64         sethi.p         %hi(done2),gr10
  65         setlo           %lo(done2),gr10
  66         movgs           gr10,lr
  67         setlos.p        0x1000,gr10
  68         setlos          0x0,gr11
  69         movgs           gr10,lcr
  70 read1:  ld              @(sp,gr11),gr12
  71         cmp             gr11,gr12,icc0
  72         bne             icc0,1,fail
  73         addi.p          gr11,4,gr11
  74         bctrlr.p        1,0
  75         bra             read1
  76 done2:
  77
  78         ; fill the cache twice
  79         sethi.p         %hi(done3),gr10
  80         setlo           %lo(done3),gr10
  81         movgs           gr10,lr
  82         setlos.p        0x2000,gr10
  83         setlos          0x0,gr11
  84         movgs           gr10,lcr
  85 write3: st.p            gr11,@(sp,gr11)
  86         addi.p          gr11,4,gr11
  87         bctrlr.p        1,0
  88         bra             write3
  89 done3:
  90         ; read it back
  91         sethi.p         %hi(done4),gr10
  92         setlo           %lo(done4),gr10
  93         movgs           gr10,lr
  94         setlos.p        0x2000,gr10
  95         setlos          0x0,gr11
  96         movgs           gr10,lcr
  97 read4:  ld              @(sp,gr11),gr12
  98         cmp             gr11,gr12,icc0
  99         bne             icc0,1,fail
 100         addi.p          gr11,4,gr11
 101         bctrlr.p        1,0
 102         bra             read4
 103 done4:
 104         ; read it back in reverse
 105         sethi.p         %hi(done5),gr10
 106         setlo           %lo(done5),gr10
 107         movgs           gr10,lr
 108         setlos.p        0x2000,gr10
 109         setlos          0x7ffc,gr11
 110         movgs           gr10,lcr
 111 read5:  ld              @(sp,gr11),gr12
 112         cmp             gr11,gr12,icc0
 113         bne             icc0,1,fail
 114         subi.p          gr11,4,gr11
 115         bctrlr.p        1,0
 116         bra             read5
 117 done5:
 118
 119         ; access data and insns in non-cache areas
 120         sethi.p         0x8038,gr11             ; bctrlr 0,0
 121         setlo           0x2000,gr11
 122
 123         sethi.p         0xff00,gr10             ; documented area
 124         setlo           0x0000,gr10
 125         sti             gr11,@(gr10,0)
 126         jmpl            @(gr10,gr0)
 127
 128         ;  enable RAM mode
 129         movsg           hsr0,gr10
 130         sethi.p         0x0040,gr12
 131         setlo           0x0000,gr12
 132         or              gr10,gr12,gr10
 133         movgs           gr10,hsr0
 134
 135         sethi.p         0xfe00,gr10             ; documented area
 136         setlo           0x0400,gr10
 137         sti             gr11,@(gr10,0)
 138         jmpl            @(gr10,gr0)
 139
 140         sethi.p         0xfe40,gr10             ; documented area
 141         setlo           0x0400,gr10
 142         sti             gr11,@(gr10,0)
 143         dcf             @(gr10,gr0)
 144         jmpl            @(gr10,gr0)
 145
 146         sethi.p         0x0007,gr10             ; non RAM area
 147         setlo           0x0000,gr10
 148         sti             gr11,@(gr10,0)
 149         jmpl            @(gr10,gr0)
 150
 151         sethi.p         0xfe00,gr10             ; insn RAM area
 152         setlo           0x0000,gr10
 153         sti             gr11,@(gr10,0)
 154         jmpl            @(gr10,gr0)
 155
 156         sethi.p         0xfe40,gr10             ; data RAM area
 157         setlo           0x0000,gr10
 158         sti             gr11,@(gr10,0)
 159         dcf             @(gr10,gr0)
 160         jmpl            @(gr10,gr0)
 161
 162         pass
 163 fail:
 164         fail