Last change
on this file since 437 was
232,
checked in by alain, 12 years ago
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Introducing the elementary tests for a TSAR mono-cluster
mono-processor platform with MMU using the vci_cc_vcache_v4
such as the "tsarv4_mono_mmu".
(assemby level tests written by Manuel Bouyer)
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File size:
1.2 KB
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Line | |
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1 | /* |
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2 | * Check that lc also updates the local L1 cache. |
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3 | */ |
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4 | #include <registers.h> |
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5 | #include <misc.h> |
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6 | #include <vcache.h> |
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7 | .text |
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8 | .globl _start |
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9 | _start: |
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10 | .set noreorder |
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11 | la k0, TTY_BASE |
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12 | la k1, EXIT_BASE |
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13 | |
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14 | /* reset cop0 status (keep BEV) */ |
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15 | lui a0, 0x0040; |
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16 | mtc0 a0, COP0_STATUS |
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17 | |
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18 | /* enable caches */ |
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19 | li a0, VC_TLB_EN_ICACHE | VC_TLB_EN_DCACHE |
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20 | mtc2 a0, VC_TLB_EN |
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21 | |
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22 | /* fetch data in cache */ |
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23 | la s0, myvar |
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24 | lw a0, 0(s0) |
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25 | /* write magic value */ |
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26 | li a0, MAGIC1 |
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27 | sw a0, 0(s0) |
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28 | /* ll/sc another value on the same address */ |
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29 | 2: |
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30 | ll a0, 0(s0) |
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31 | PRINTX |
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32 | PUTCHAR(' ') |
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33 | li a0, MAGIC2 |
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34 | sc a0, 0(s0) |
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35 | beqz a0, 2b |
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36 | /* now check that we got the right value in cache */ |
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37 | lw a0, 0(s0) |
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38 | PRINTX |
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39 | PUTCHAR('\n') |
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40 | EXIT(0) |
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41 | |
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42 | .globl excep |
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43 | excep: |
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44 | .set noreorder |
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45 | PRINT(statusstr) |
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46 | mfc0 a0, COP0_STATUS |
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47 | PRINTX |
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48 | |
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49 | PRINT(causestr) |
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50 | mfc0 a0, COP0_CAUSE |
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51 | PRINTX |
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52 | |
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53 | PRINT(pcstr) |
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54 | mfc0 a0, COP0_EXPC |
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55 | PRINTX |
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56 | |
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57 | PRINT(badvastr) |
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58 | mfc0 a0, COP_0_BADVADDR |
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59 | PRINTX |
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60 | |
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61 | PUTCHAR('\n') |
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62 | /* we should not get there */ |
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63 | EXIT(1) |
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64 | |
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65 | .rodata: |
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66 | statusstr: .ascii "status \0" |
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67 | causestr: .ascii " cause \0" |
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68 | pcstr: .ascii " pc \0" |
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69 | badvastr: .ascii " badva \0" |
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70 | value: .word 0x1234abcd |
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71 | string: .ascii "hello world \0" |
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72 | |
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73 | .org EXCEP_ADDRESS - BOOT_ADDRESS |
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74 | .globl evect |
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75 | evect: |
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76 | j excep |
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77 | nop |
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78 | |
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79 | .data |
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80 | myvar: .word 0 |
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