/*
* HMCSIM_ALLOCATE_MEMORY
*
*/
extern int hmcsim_allocate_memory( struct hmcsim_t *hmc )
{
if( hmc == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "HMC STRUCTURE IS NULL" );
#endif
return -1;
}
hmc->__ptr_devs = malloc( sizeof( struct hmc_dev_t ) * hmc->num_devs );
if( hmc->__ptr_devs == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_devs" );
#endif
return -1;
}
hmc->__ptr_quads = malloc( sizeof( struct hmc_quad_t ) * hmc->num_devs * hmc->num_quads );
if( hmc->__ptr_quads == NULL ) {
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_quads" );
#endif
return -1;
}
hmc->__ptr_vaults = malloc( sizeof( struct hmc_vault_t ) * hmc->num_devs * hmc->num_vaults );
if( hmc->__ptr_vaults == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_vaults" );
#endif
return -1;
}
hmc->__ptr_dres = malloc( sizeof( struct hmc_dre_t ) * hmc->num_devs * hmc->num_dres );
if( hmc->__ptr_dres == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_dres" );
#endif
return -1;
}
hmc->__ptr_banks = malloc( sizeof( struct hmc_bank_t )
* hmc->num_devs * hmc->num_vaults * hmc->num_banks );
if( hmc->__ptr_banks == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_banks" );
#endif
return -1;
}
hmc->__ptr_drams = malloc( sizeof( struct hmc_dram_t )
* hmc->num_devs * hmc->num_vaults * hmc->num_banks
* hmc->num_drams );
if( hmc->__ptr_drams == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_drams" );
#endif
return -1;
}
hmc->__ptr_links = malloc( sizeof( struct hmc_link_t ) * hmc->num_devs * hmc->num_links );
if( hmc->__ptr_links == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_links" );
#endif
return -1;
}
hmc->__ptr_xbars = malloc( sizeof( struct hmc_xbar_t ) * hmc->num_devs * hmc->num_links );
if( hmc->__ptr_xbars == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_xbars" );
#endif
return -1;
}
#if 0
hmc->__ptr_stor = malloc( sizeof( uint64_t ) * hmc->num_devs * hmc->capacity * HMC_1GB );
if( hmc->__ptr_stor == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_stor" );
#endif
return -1;
}
#endif
hmc->__ptr_xbar_rqst = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs
* hmc->xbar_depth
* hmc->num_links );
if( hmc->__ptr_xbar_rqst == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_xbar_rqst" );
#endif
return -1;
}
hmc->__ptr_xbar_rsp = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs
* hmc->xbar_depth
* hmc->num_links );
if( hmc->__ptr_xbar_rsp == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_xbar_rsp" );
#endif
return -1;
}
hmc->__ptr_vault_rqst = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs * hmc->num_vaults * hmc->queue_depth );
if( hmc->__ptr_vault_rqst == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_vault_rqst" );
#endif
return -1;
}
hmc->__ptr_vault_rsp = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs * hmc->num_vaults * hmc->queue_depth );
if( hmc->__ptr_vault_rsp == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_vault_rsp" );
#endif
return -1;
}
hmc->__ptr_dre_rqst = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs * hmc->num_dres * hmc->dre_depth);
if( hmc->__ptr_dre_rqst == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_dre_rqst" );
#endif
return -1;
}
hmc->__ptr_dre_rsp = malloc( sizeof( struct hmc_queue_t ) * hmc->num_devs * hmc->num_dres * hmc->dre_depth);
if( hmc->__ptr_dre_rsp == NULL ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE __ptr_dre_rsp" );
#endif
return -1;
}
return 0;
}
/*
* HMCSIM_INIT
*
*/
extern int hmcsim_init( struct hmcsim_t *hmc,
uint32_t num_devs,
uint32_t num_links,
uint32_t num_vaults,
uint32_t queue_depth,
uint32_t num_banks,
uint32_t num_drams,
uint32_t capacity,
uint32_t xbar_depth )
{
/* vars */
uint32_t i = 0;
/* ---- */
/*
* ensure we have a good structure
*
*/
if( hmc == NULL ){
return -1;
}
/*
* sanity check the args
*
*/
if( (num_devs > HMC_MAX_DEVS) || (num_devs < 1) ){
return HMC_ERROR_PARAMS;
}else if( (num_links < HMC_MIN_LINKS) || (num_links > HMC_MAX_LINKS) ){
return HMC_ERROR_PARAMS;
}else if( (num_vaults < HMC_MIN_VAULTS) || (num_vaults > HMC_MAX_VAULTS) ){
return HMC_ERROR_PARAMS;
}else if( (num_banks < HMC_MIN_BANKS) || (num_banks > HMC_MAX_BANKS) ){
return HMC_ERROR_PARAMS;
}else if( (num_drams < HMC_MIN_DRAMS) || (num_drams > HMC_MAX_DRAMS) ){
return HMC_ERROR_PARAMS;
}else if( (capacity < HMC_MIN_CAPACITY) || (capacity > HMC_MAX_CAPACITY) ){
return HMC_ERROR_PARAMS;
}else if( (queue_depth < HMC_MIN_QUEUE_DEPTH ) || (queue_depth > HMC_MAX_QUEUE_DEPTH ) ){
return HMC_ERROR_PARAMS;
}else if( (xbar_depth < HMC_MIN_QUEUE_DEPTH ) || (xbar_depth > HMC_MAX_QUEUE_DEPTH ) ){
return HMC_ERROR_PARAMS;
}
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "PASSED LEVEL1 INIT SANITY CHECK" );
#endif
/*
* look deeper to make sure the default addressing works
* and the vault counts
*
*/
if( (num_banks != 8) && (num_banks != 16) ){
return HMC_ERROR_PARAMS;
}else if( (num_links != 4) && (num_links != 8) ){
return HMC_ERROR_PARAMS;
}else if( (num_vaults/num_links) != 4 ){
/* always maintain 4 vaults per quad, or link */
return HMC_ERROR_PARAMS;
}else if( (capacity%2) != 0 ){
return HMC_ERROR_PARAMS;
}
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "PASSED LEVEL2 INIT SANITY CHECK" );
#endif
/*
* go deeper still...
*
*/
if( (capacity == 2) && ( (num_banks == 16) || (num_links==8) ) ){
return HMC_ERROR_PARAMS;
}else if( (capacity == 4) && ( (num_banks == 8) && (num_links==4) ) ){
return HMC_ERROR_PARAMS;
}else if( (capacity == 4) && ( (num_banks == 16) && (num_links==8) ) ){
return HMC_ERROR_PARAMS;
}else if( (capacity == 8) && ( (num_banks == 8 ) || (num_links==4) ) ){
return HMC_ERROR_PARAMS;
}
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "PASSED LEVEL3 INIT SANITY CHECK" );
#endif
/*
* init all the internals
*
*/
hmc->tfile = NULL;
hmc->tracelevel = 0x00;
hmc->num_devs = num_devs;
hmc->num_links = num_links;
hmc->num_vaults = num_vaults;
hmc->num_banks = num_banks;
hmc->num_drams = num_drams;
hmc->capacity = capacity;
hmc->queue_depth= queue_depth;
hmc->xbar_depth = xbar_depth;
hmc->clk = 0x00ll;
if( num_links == 4 ){
hmc->num_quads = 4;
}else{
hmc->num_quads = 8;
}
/*
* pointers
*/
hmc->__ptr_devs = NULL;
hmc->__ptr_quads = NULL;
hmc->__ptr_vaults = NULL;
hmc->__ptr_banks = NULL;
hmc->__ptr_drams = NULL;
hmc->__ptr_links = NULL;
hmc->__ptr_xbars = NULL;
hmc->__ptr_stor = NULL;
hmc->__ptr_xbar_rqst = NULL;
hmc->__ptr_xbar_rsp = NULL;
hmc->__ptr_vault_rqst = NULL;
hmc->__ptr_vault_rsp = NULL;
/*
*
* allocate memory
*
*/
if( hmcsim_allocate_memory( hmc ) != 0 ){
/*
* probably ran out of memory
*
*/
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO ALLOCATE INTERNAL MEMORY" );
#endif
return -1;
}
/*
* configure all the devices
*
*/
if( hmcsim_config_devices( hmc ) != 0 ){
#ifdef HMC_DEBUG
HMCSIM_PRINT_TRACE( "FAILED TO CONFIGURE THE INTERNAL DEVICE STRUCTURE" );
#endif
hmcsim_free_memory( hmc );
return -1;
}
/*
* warm reset all the devices
*
*/
for( i=0; i<hmc->num_devs; i++ ) {
//hmc_reset_device( hmc, i );
}
return 0;
}