drivers/cxl/core/suspend.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /* Copyright(c) 2022 Intel Corporation. All rights reserved. */
   3 #include <linux/atomic.h>
   4 #include <linux/export.h>
   5 #include "cxlmem.h"
   6
   7 static atomic_t mem_active;
   8
   9 bool cxl_mem_active(void)
  10 {
  11         return atomic_read(&mem_active) != 0;
  12 }
  13
  14 void cxl_mem_active_inc(void)
  15 {
  16         atomic_inc(&mem_active);
  17 }
  18 EXPORT_SYMBOL_NS_GPL(cxl_mem_active_inc, "CXL");
  19
  20 void cxl_mem_active_dec(void)
  21 {
  22         atomic_dec(&mem_active);
  23 }
  24 EXPORT_SYMBOL_NS_GPL(cxl_mem_active_dec, "CXL");