drivers/gpu/host1x/channel.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Tegra host1x Channel
   4  *
   5  * Copyright (c) 2010-2013, NVIDIA Corporation.
   6  */
   7
   8 #ifndef __HOST1X_CHANNEL_H
   9 #define __HOST1X_CHANNEL_H
  10
  11 #include <linux/io.h>
  12 #include <linux/kref.h>
  13
  14 #include "cdma.h"
  15
  16 struct host1x;
  17 struct host1x_channel;
  18
  19 struct host1x_channel_list {
  20         struct host1x_channel *channels;
  21         unsigned long *allocated_channels;
  22 };
  23
  24 struct host1x_channel {
  25         struct kref refcount;
  26         unsigned int id;
  27         struct mutex submitlock;
  28         void __iomem *regs;
  29         struct host1x_client *client;
  30         struct device *dev;
  31         struct host1x_cdma cdma;
  32 };
  33
  34 /* channel list operations */
  35 int host1x_channel_list_init(struct host1x_channel_list *chlist,
  36                              unsigned int num_channels);
  37 void host1x_channel_list_free(struct host1x_channel_list *chlist);
  38 struct host1x_channel *host1x_channel_get_index(struct host1x *host,
  39                                                 unsigned int index);
  40
  41 #endif