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soc/software/libbase: add option for read retries in memtest_data

This commit is contained in:
Jędrzej Boczar 2021-05-17 13:56:31 +02:00
parent d610c9da44
commit 33fb48584b
1 changed files with 17 additions and 1 deletions
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18
litex/soc/software/libbase/memtest.c
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@ -15,6 +15,10 @@
#ifndef MEMTEST_DEBUG_MAX_ERRORS #ifndef MEMTEST_DEBUG_MAX_ERRORS
#define MEMTEST_DEBUG_MAX_ERRORS 400 #define MEMTEST_DEBUG_MAX_ERRORS 400
#endif #endif
// Retry reading when an error occurs. Allows to spot if errors happen during read or write.
#ifndef MEMTEST_DATA_RETRIES
#define MEMTEST_DATA_RETRIES 0
#endif
#define KIB 1024 #define KIB 1024
#define MIB (KIB*1024) #define MIB (KIB*1024)
@ -184,6 +188,7 @@ int memtest_data(unsigned int *addr, unsigned long size, int random, struct memt
{ {
volatile unsigned int *array = addr; volatile unsigned int *array = addr;
int i, errors; int i, errors;
int j, ok_at;
int progress; int progress;
unsigned int seed_32; unsigned int seed_32;
unsigned int rdata; unsigned int rdata;
@ -212,7 +217,18 @@ int memtest_data(unsigned int *addr, unsigned long size, int random, struct memt
seed_32 = 1; seed_32 = 1;
for(i=0; i<size/4; i++) { for(i=0; i<size/4; i++) {
seed_32 = seed_to_data_32(seed_32, random); seed_32 = seed_to_data_32(seed_32, random);
rdata = array[i];
ok_at = -1;
for (j = 0; j < MEMTEST_DATA_RETRIES + 1; ++j) {
rdata = array[i];
if (rdata == seed_32) {
ok_at = j;
break;
}
}
if (ok_at > 0)
printf("@%p: Redeemed at %d. attempt\n", addr + i, ok_at + 1);
if(rdata != seed_32) { if(rdata != seed_32) {
errors++; errors++;
if (config != NULL && config->on_error != NULL) { if (config != NULL && config->on_error != NULL) {