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#include <machine/rtems-bsd-kernel-space.h>
#include <rtems/bsd/local/opt_dpaa.h>
/*
* Copyright 2008-2015 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "../../../linux/drivers/net/ethernet/freescale/fman/fman_muram.h"
#include <sys/lock.h>
#include <sys/mutex.h>
#include <stdlib.h>
#include <rtems/score/heapimpl.h>
#define MURAM_LOCK(x) (mtx_lock(&(x)->mtx))
#define MURAM_UNLOCK(x) (mtx_unlock(&(x)->mtx))
struct muram_info {
struct mtx mtx;
Heap_Control heap;
unsigned long base;
};
static unsigned long
fman_muram_vbase_to_offset(struct muram_info *muram, unsigned long addr)
{
return (addr - muram->base);
}
struct muram_info *fman_muram_init(phys_addr_t base, size_t size)
{
struct muram_info *muram;
uintptr_t s;
muram = malloc(sizeof(*muram));
if (muram == NULL)
return (NULL);
muram->base = (unsigned long)base;
memset((void *)muram->base, 0xab, size);
s = _Heap_Initialize(&muram->heap, (void *)(uintptr_t)base, size, 64);
if (s == 0) {
free(muram);
return (NULL);
}
mtx_init(&muram->mtx, "FMan MURAM", NULL, MTX_DEF);
return (muram);
}
unsigned long
fman_muram_offset_to_vbase(struct muram_info *muram, unsigned long offset)
{
return (offset + muram->base);
}
int
fman_muram_alloc(struct muram_info *muram, size_t size)
{
void *p;
MURAM_LOCK(muram);
p = _Heap_Allocate(&muram->heap, size);
MURAM_UNLOCK(muram);
if (p == NULL)
return -ENOMEM;
memset(p, 0, size);
return (fman_muram_vbase_to_offset(muram, (unsigned long)p));
}
void
fman_muram_free_mem(struct muram_info *muram, unsigned long offset, size_t size)
{
void *p = (void *)fman_muram_offset_to_vbase(muram, offset);
MURAM_LOCK(muram);
_Heap_Free(&muram->heap, p);
MURAM_UNLOCK(muram);
}
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