drivers/gpu/arm/midgard/mali_kbase_mem_pool_debugfs.c

   1 /*
   2  *
   3  * (C) COPYRIGHT 2014-2015 ARM Limited. All rights reserved.
   4  *
   5  * This program is free software and is provided to you under the terms of the
   6  * GNU General Public License version 2 as published by the Free Software
   7  * Foundation, and any use by you of this program is subject to the terms
   8  * of such GNU licence.
   9  *
  10  * A copy of the licence is included with the program, and can also be obtained
  11  * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  12  * Boston, MA  02110-1301, USA.
  13  *
  14  */
  15
  16
  17
  18 #include <linux/debugfs.h>
  19 #include <linux/seq_file.h>
  20
  21 #include <mali_kbase_mem_pool_debugfs.h>
  22
  23 #ifdef CONFIG_DEBUG_FS
  24
  25 static int kbase_mem_pool_debugfs_size_get(void *data, u64 *val)
  26 {
  27         struct kbase_mem_pool *pool = (struct kbase_mem_pool *)data;
  28
  29         *val = kbase_mem_pool_size(pool);
  30
  31         return 0;
  32 }
  33
  34 static int kbase_mem_pool_debugfs_size_set(void *data, u64 val)
  35 {
  36         struct kbase_mem_pool *pool = (struct kbase_mem_pool *)data;
  37
  38         kbase_mem_pool_trim(pool, val);
  39
  40         return 0;
  41 }
  42
  43 DEFINE_SIMPLE_ATTRIBUTE(kbase_mem_pool_debugfs_size_fops,
  44                 kbase_mem_pool_debugfs_size_get,
  45                 kbase_mem_pool_debugfs_size_set,
  46                 "%llu\n");
  47
  48 static int kbase_mem_pool_debugfs_max_size_get(void *data, u64 *val)
  49 {
  50         struct kbase_mem_pool *pool = (struct kbase_mem_pool *)data;
  51
  52         *val = kbase_mem_pool_max_size(pool);
  53
  54         return 0;
  55 }
  56
  57 static int kbase_mem_pool_debugfs_max_size_set(void *data, u64 val)
  58 {
  59         struct kbase_mem_pool *pool = (struct kbase_mem_pool *)data;
  60
  61         kbase_mem_pool_set_max_size(pool, val);
  62
  63         return 0;
  64 }
  65
  66 DEFINE_SIMPLE_ATTRIBUTE(kbase_mem_pool_debugfs_max_size_fops,
  67                 kbase_mem_pool_debugfs_max_size_get,
  68                 kbase_mem_pool_debugfs_max_size_set,
  69                 "%llu\n");
  70
  71 void kbase_mem_pool_debugfs_init(struct dentry *parent,
  72                 struct kbase_mem_pool *pool)
  73 {
  74         debugfs_create_file("mem_pool_size", S_IRUGO | S_IWUSR, parent,
  75                         pool, &kbase_mem_pool_debugfs_size_fops);
  76
  77         debugfs_create_file("mem_pool_max_size", S_IRUGO | S_IWUSR, parent,
  78                         pool, &kbase_mem_pool_debugfs_max_size_fops);
  79 }
  80
  81 #endif /* CONFIG_DEBUG_FS */