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// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2020 Intel Corporation. All rights reserved.
//
// Author: Cezary Rojewski <cezary.rojewski@intel.com>
//
#include <linux/dma-mapping.h>
#include <linux/slab.h>
#include "core.h"
void catpt_sram_init(struct resource *sram, u32 start, u32 size)
{
sram->start = start;
sram->end = start + size - 1;
}
void catpt_sram_free(struct resource *sram)
{
struct resource *res, *save;
for (res = sram->child; res;) {
save = res->sibling;
release_resource(res);
kfree(res);
res = save;
}
}
struct resource *
catpt_request_region(struct resource *root, resource_size_t size)
{
struct resource *res = root->child;
resource_size_t addr = root->start;
for (;;) {
if (res->start - addr >= size)
break;
addr = res->end + 1;
res = res->sibling;
if (!res)
return NULL;
}
return __request_region(root, addr, size, NULL, 0);
}
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