| Line 78... |
Line 78... |
- set 'lru' with config.ic.ustates - 1 and decrement 'lru' of other
|
- set 'lru' with config.ic.ustates - 1 and decrement 'lru' of other
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ways unless they have reached 0
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ways unless they have reached 0
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- refill cache line
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- refill cache line
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*/
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*/
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|
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uint32_t ic_simulate_fetch(oraddr_t fetchaddr)
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uint32_t ic_simulate_fetch(oraddr_t fetchaddr, oraddr_t virt_addr)
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{
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{
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int set, way = -1;
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int set, way = -1;
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int i;
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int i;
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oraddr_t tagaddr;
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oraddr_t tagaddr;
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uint32_t tmp;
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uint32_t tmp;
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|
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/* ICache simulation enabled/disabled. */
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/* ICache simulation enabled/disabled. */
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if ((!testsprbits(SPR_UPR, SPR_UPR_ICP)) || (!testsprbits(SPR_SR, SPR_SR_ICE)) || insn_ci) {
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if ((!testsprbits(SPR_UPR, SPR_UPR_ICP)) || (!testsprbits(SPR_SR, SPR_SR_ICE)) || insn_ci) {
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tmp = evalsim_mem32(fetchaddr);
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tmp = evalsim_mem32(fetchaddr, virt_addr);
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if(!cur_area) {
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if (cur_area && cur_area->log)
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printf("EXCEPTION: read out of memory (32-bit access to %"PRIxADDR")\n",
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fetchaddr);
|
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except_handle(EXCEPT_BUSERR, cur_vadd);
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return 0;
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} else if (cur_area->log)
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fprintf (cur_area->log, "[%"PRIxADDR"] -> read %08"PRIx32"\n", fetchaddr,
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fprintf (cur_area->log, "[%"PRIxADDR"] -> read %08"PRIx32"\n", fetchaddr,
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tmp);
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tmp);
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return tmp;
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return tmp;
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}
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}
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|
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| Line 134... |
Line 129... |
}
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}
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}
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}
|
|
|
for (i = 0; i < (config.ic.blocksize); i += 4) {
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for (i = 0; i < (config.ic.blocksize); i += 4) {
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tmp = ic[set].way[minway].line[((fetchaddr + i) & (config.ic.blocksize - 1)) >> 2] =
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tmp = ic[set].way[minway].line[((fetchaddr + i) & (config.ic.blocksize - 1)) >> 2] =
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evalsim_mem32((fetchaddr & ~(config.ic.blocksize - 1)) + ((fetchaddr + i) & (config.ic.blocksize - 1)));
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/* FIXME: What is the virtual address meant to be? (ie. What happens if
|
|
* we read out of memory while refilling a cache line?) */
|
|
evalsim_mem32((fetchaddr & ~(config.ic.blocksize - 1)) + ((fetchaddr + i) & (config.ic.blocksize - 1)), 0);
|
if(!cur_area) {
|
if(!cur_area) {
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ic[set].way[minway].tagaddr = -1;
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ic[set].way[minway].tagaddr = -1;
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ic[set].way[minway].lru = 0;
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ic[set].way[minway].lru = 0;
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printf("EXCEPTION: read out of memory (32-bit access to %"PRIxADDR")\n",
|
|
fetchaddr);
|
|
except_handle(EXCEPT_BUSERR, cur_vadd);
|
|
return 0;
|
return 0;
|
} else if (cur_area->log)
|
} else if (cur_area->log)
|
fprintf (cur_area->log, "[%"PRIxADDR"] -> read %08"PRIx32"\n",
|
fprintf (cur_area->log, "[%"PRIxADDR"] -> read %08"PRIx32"\n",
|
fetchaddr, tmp);
|
fetchaddr, tmp);
|
}
|
}
|
