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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2018 Marvell International Ltd.
*/
#include <dm.h>
#include <errno.h>
#include <malloc.h>
#include <misc.h>
#include <net.h>
#include <asm/io.h>
#include "rvu.h"
int qmem_alloc(struct qmem *q, u32 qsize, size_t entry_sz)
{
q->base = memalign(CONFIG_SYS_CACHELINE_SIZE, qsize * entry_sz);
if (!q->base)
return -ENOMEM;
q->entry_sz = entry_sz;
q->qsize = qsize;
q->alloc_sz = (size_t)qsize * entry_sz;
q->iova = (dma_addr_t)(q->base);
debug("NIX: qmem alloc for (%d * %d = %ld bytes) at %p\n",
q->qsize, q->entry_sz, q->alloc_sz, q->base);
return 0;
}
void qmem_free(struct qmem *q)
{
if (q->base)
free(q->base);
memset(q, 0, sizeof(*q));
}
/**
* Allocates an admin queue for instructions and results
*
* @param aq admin queue to allocate for
* @param qsize Number of entries in the queue
* @param inst_size Size of each instruction
* @param res_size Size of each result
*
* @return -ENOMEM on error, 0 on success
*/
int rvu_aq_alloc(struct admin_queue *aq, unsigned int qsize,
size_t inst_size, size_t res_size)
{
int err;
err = qmem_alloc(&aq->inst, qsize, inst_size);
if (err)
return err;
err = qmem_alloc(&aq->res, qsize, res_size);
if (err)
qmem_free(&aq->inst);
return err;
}
/**
* Frees an admin queue
*
* @param aq Admin queue to free
*/
void rvu_aq_free(struct admin_queue *aq)
{
qmem_free(&aq->inst);
qmem_free(&aq->res);
memset(aq, 0, sizeof(*aq));
}
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