mirror of
https://github.com/saymrwulf/pulp-runtime.git
synced 2026-05-14 20:48:09 +00:00
114 lines
2.3 KiB
C
114 lines
2.3 KiB
C
/*
|
|
* Copyright (C) 2019 ETH Zurich, University of Bologna
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "pulp.h"
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
volatile void *cluster_entry;
|
|
|
|
L1_DATA char *cluster_stacks;
|
|
|
|
|
|
static volatile int cluster_running;
|
|
static volatile int cluster_retval;
|
|
|
|
|
|
static void pos_wait_forever()
|
|
{
|
|
eu_evt_maskClr(0xffffffff);
|
|
eu_evt_wait();
|
|
while(1);
|
|
}
|
|
|
|
|
|
|
|
static void cluster_core_init()
|
|
{
|
|
eu_evt_maskSet((1<<PULP_DISPATCH_EVENT) | (1<<PULP_MUTEX_EVENT) | (1<<PULP_HW_BAR_EVENT));
|
|
|
|
eu_bar_setup(eu_bar_addr(0), (1<<ARCHI_CLUSTER_NB_PE) - 1);
|
|
}
|
|
|
|
void cluster_entry_stub()
|
|
{
|
|
cluster_core_init();
|
|
|
|
int retval = ((int (*)())cluster_entry)();
|
|
|
|
if (hal_core_id() == 0)
|
|
{
|
|
cluster_retval = retval;
|
|
cluster_running = 0;
|
|
}
|
|
|
|
pos_wait_forever();
|
|
}
|
|
|
|
|
|
void cluster_start(int cid, int (*entry)())
|
|
{
|
|
// Store cluster entry point, ctr0 will jump here
|
|
cluster_entry = entry;
|
|
|
|
// Init FLL
|
|
pos_fll_init(POS_FLL_CL);
|
|
|
|
// Initialize cluster L1 memory allocator
|
|
alloc_init_l1(cid);
|
|
|
|
// Activate icache
|
|
hal_icache_cluster_enable(cid);
|
|
|
|
if (!hal_is_fc())
|
|
{
|
|
cluster_core_init();
|
|
}
|
|
|
|
alloc_init_l1(cid);
|
|
|
|
cluster_stacks = pi_l1_malloc(cid, ARCHI_CLUSTER_NB_PE*CLUSTER_STACK_SIZE);
|
|
if (cluster_stacks == NULL)
|
|
return;
|
|
|
|
cluster_running = 1;
|
|
|
|
// Fetch all cores
|
|
for (int i=0; i<ARCHI_CLUSTER_NB_PE; i++)
|
|
{
|
|
plp_ctrl_core_bootaddr_set_remote(cid, i, (int)_start);
|
|
}
|
|
|
|
eoc_fetch_enable_remote(cid, (1<<ARCHI_CLUSTER_NB_PE) - 1);
|
|
}
|
|
|
|
|
|
int cluster_wait(int cid)
|
|
{
|
|
while(cluster_running);
|
|
|
|
return cluster_retval;
|
|
}
|
|
|
|
void synch_barrier()
|
|
{
|
|
#ifdef ARCHI_FC_CID
|
|
if (hal_cluster_id() != ARCHI_FC_CID)
|
|
#endif
|
|
{
|
|
eu_bar_trig_wait_clr(eu_bar_addr(0));
|
|
}
|
|
}
|