source: soft/giet_vm/libs/libsrl/srl_sched_wait.c @ 175

/*
 * This file is part of MutekH.
 * 
 * MutekH is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; version 2.1 of the License.
 * 
 * MutekH is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with MutekH; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 * Copyright (c) UPMC, Lip6, SoC
 *         Nicolas Pouillon <nipo@ssji.net>, 2008
 */

#include "srl_private_types.h"
#include "srl_sched_wait.h"
#include "srl_hw_helpers.h"
#include "stdio.h"

#define endian_cpu32(x) (x)

#define DECLARE_WAIT(name, cmp)                                              \
                                                                                         \
    void srl_sched_wait_##name( void *addr, sint32_t val )                              \
    {                                                                                           \
                dcache_flush(addr, sizeof(addr));                                                                                               \
        if ( ((sint32_t)*((unsigned int *)addr)) cmp val )                      \
        return;                                                                          \
        do {                                                                             \
            context_switch();                                                                                                                   \
                        dcache_flush(addr, sizeof(addr));                                                                                       \
        } while (((sint32_t)*((unsigned int*)addr)) cmp val );          \
    }



DECLARE_WAIT(eq, ==)

DECLARE_WAIT(ne, !=)

DECLARE_WAIT(le, <=)

DECLARE_WAIT(ge, >=)

DECLARE_WAIT(lt, <)

DECLARE_WAIT(gt, >)

void srl_sched_wait_priv(uint32_t date )
{
        do{
                context_switch();
        }while (srl_cycle_count() > date);
}

void srl_sleep_cycles( uint32_t n )
{
        uint32_t next_run_to = srl_cycle_count()+n;

        while(srl_cycle_count() < next_run_to)
                srl_sched_wait_priv(next_run_to);
}