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This is a uclass for Shared memory manager drivers. A Shared Memory Manager driver implements an interface for allocating and accessing items in the memory area shared among all of the processors. Signed-off-by: Ramon Fried <ramon.fried@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
46 lines
846 B
C
46 lines
846 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2018 Ramon Fried <ramon.fried@gmail.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <smem.h>
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int smem_alloc(struct udevice *dev, unsigned int host,
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unsigned int item, size_t size)
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{
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struct smem_ops *ops = smem_get_ops(dev);
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if (!ops->alloc)
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return -ENOSYS;
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return ops->alloc(host, item, size);
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}
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void *smem_get(struct udevice *dev, unsigned int host,
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unsigned int item, size_t *size)
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{
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struct smem_ops *ops = smem_get_ops(dev);
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if (!ops->get)
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return NULL;
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return ops->get(host, item, size);
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}
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int smem_get_free_space(struct udevice *dev, unsigned int host)
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{
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struct smem_ops *ops = smem_get_ops(dev);
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if (!ops->get_free_space)
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return -ENOSYS;
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return ops->get_free_space(host);
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}
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UCLASS_DRIVER(smem) = {
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.id = UCLASS_SMEM,
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.name = "smem",
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};
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