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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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caccddcfc4
A struct device doesn't carry much information that a channel might be interested in, but the client very much does. Request channels for the clients rather than their parent devices and store a pointer to them in order to have that information available when needed. Signed-off-by: Thierry Reding <treding@nvidia.com>
42 lines
886 B
C
42 lines
886 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Tegra host1x Channel
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*
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* Copyright (c) 2010-2013, NVIDIA Corporation.
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*/
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#ifndef __HOST1X_CHANNEL_H
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#define __HOST1X_CHANNEL_H
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#include <linux/io.h>
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#include <linux/kref.h>
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#include "cdma.h"
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struct host1x;
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struct host1x_channel;
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struct host1x_channel_list {
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struct host1x_channel *channels;
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unsigned long *allocated_channels;
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};
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struct host1x_channel {
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struct kref refcount;
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unsigned int id;
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struct mutex submitlock;
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void __iomem *regs;
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struct host1x_client *client;
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struct device *dev;
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struct host1x_cdma cdma;
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};
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/* channel list operations */
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int host1x_channel_list_init(struct host1x_channel_list *chlist,
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unsigned int num_channels);
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void host1x_channel_list_free(struct host1x_channel_list *chlist);
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struct host1x_channel *host1x_channel_get_index(struct host1x *host,
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unsigned int index);
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#endif
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