include/cache.h

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) 2019 Intel Corporation <www.intel.com>
   4  */
   5
   6 #ifndef __CACHE_H
   7 #define __CACHE_H
   8
   9 /*
  10  * Structure for the cache controller
  11  */
  12 struct cache_info {
  13         phys_addr_t base; /* Base physical address of cache device. */
  14 };
  15
  16 struct cache_ops {
  17         /**
  18          * get_info() - Get basic cache info
  19          *
  20          * @dev:        Device to check (UCLASS_CACHE)
  21          * @info:       Place to put info
  22          * @return 0 if OK, -ve on error
  23          */
  24         int (*get_info)(struct udevice *dev, struct cache_info *info);
  25
  26         /**
  27          * enable() - Enable cache
  28          *
  29          * @dev:        Device to check (UCLASS_CACHE)
  30          * @return 0 if OK, -ve on error
  31          */
  32         int (*enable)(struct udevice *dev);
  33
  34         /**
  35          * disable() - Flush and disable cache
  36          *
  37          * @dev:        Device to check (UCLASS_CACHE)
  38          * @return 0 if OK, -ve on error
  39          */
  40         int (*disable)(struct udevice *dev);
  41 };
  42
  43 #define cache_get_ops(dev)      ((struct cache_ops *)(dev)->driver->ops)
  44
  45 /**
  46  * cache_get_info() - Get information about a cache controller
  47  *
  48  * @dev:        Device to check (UCLASS_CACHE)
  49  * @info:       Returns cache info
  50  * @return 0 if OK, -ve on error
  51  */
  52 int cache_get_info(struct udevice *dev, struct cache_info *info);
  53
  54 /**
  55  * cache_enable() - Enable cache
  56  *
  57  * @dev:        Device to check (UCLASS_CACHE)
  58  * @return 0 if OK, -ve on error
  59  */
  60 int cache_enable(struct udevice *dev);
  61
  62 /**
  63  * cache_disable() - Flush and disable cache
  64  *
  65  * @dev:        Device to check (UCLASS_CACHE)
  66  * @return 0 if OK, -ve on error
  67  */
  68 int cache_disable(struct udevice *dev);
  69 #endif