gpu: nvgpu: Add wrapper nvgpu/atomic.h

Add wrapper header file nvgpu/atomic.h. It #includes <linux/atomic.h>
on Linux.

JIRA NVGPU-13

Change-Id: I6f2b3a04c964e7664b1f61b6073b643629bd99c5
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1460792
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Deepak Nibade <dnibade@nvidia.com>

drivers/gpu/nvgpu/clk/clk_arb.c

@@ -19,11 +19,11 @@
 #include <linux/llist.h>
 #include <linux/uaccess.h>
 #include <linux/poll.h>
-#include <linux/atomic.h>
 
 #include <nvgpu/bitops.h>
 #include <nvgpu/lock.h>
 #include <nvgpu/kmem.h>
+#include <nvgpu/atomic.h>
 
 #include "gk20a/gk20a.h"
 #include "clk/clk_arb.h"

drivers/gpu/nvgpu/common/linux/kmem.c

@@ -16,7 +16,6 @@
 
 #include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/atomic.h>
 #include <linux/rbtree.h>
 #include <linux/debugfs.h>
 #include <linux/spinlock.h>
@@ -25,6 +24,7 @@
 #include <linux/stacktrace.h>
 
 #include <nvgpu/kmem.h>
+#include <nvgpu/atomic.h>
 
 #include "gk20a/gk20a.h"
 

drivers/gpu/nvgpu/common/mm/lockless_allocator.c

@@ -14,8 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <linux/atomic.h>
-
+#include <nvgpu/atomic.h>
 #include <nvgpu/allocator.h>
 #include <nvgpu/kmem.h>
 

drivers/gpu/nvgpu/gk20a/channel_gk20a.c

@@ -28,6 +28,7 @@
 #include <nvgpu/kmem.h>
 #include <nvgpu/dma.h>
 #include <nvgpu/log.h>
+#include <nvgpu/atomic.h>
 
 #include "gk20a.h"
 #include "debug_gk20a.h"

drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c

@@ -21,6 +21,7 @@
 #include <nvgpu/semaphore.h>
 #include <nvgpu/kmem.h>
 #include <nvgpu/log.h>
+#include <nvgpu/atomic.h>
 
 #include "channel_sync_gk20a.h"
 #include "gk20a.h"

drivers/gpu/nvgpu/gk20a/ctxsw_trace_gk20a.c

@@ -33,6 +33,7 @@
 #include "gr_gk20a.h"
 
 #include <nvgpu/log.h>
+#include <nvgpu/atomic.h>
 
 #include <nvgpu/hw/gk20a/hw_ctxsw_prog_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_gr_gk20a.h>

drivers/gpu/nvgpu/gk20a/fifo_gk20a.c

@@ -32,6 +32,7 @@
 #include <nvgpu/kmem.h>
 #include <nvgpu/log.h>
 #include <nvgpu/soc.h>
+#include <nvgpu/atomic.h>
 
 #include "gk20a.h"
 #include "debug_gk20a.h"

drivers/gpu/nvgpu/gk20a/gk20a.h

@@ -35,7 +35,6 @@ struct dbg_profiler_object_data;
 #include <linux/nvgpu.h>
 #include <linux/irqreturn.h>
 #include <linux/version.h>
-#include <linux/atomic.h>
 #include <linux/cdev.h>
 
 #include "../../../arch/arm/mach-tegra/iomap.h"

drivers/gpu/nvgpu/gk20a/mc_gk20a.c

@@ -19,6 +19,8 @@
 #include "gk20a.h"
 #include "mc_gk20a.h"
 
+#include <nvgpu/atomic.h>
+
 #include <nvgpu/hw/gk20a/hw_mc_gk20a.h>
 
 void mc_gk20a_nonstall_cb(struct work_struct *work)

drivers/gpu/nvgpu/gm20b/fifo_gm20b.c

@@ -22,6 +22,7 @@
 
 #include <nvgpu/timers.h>
 #include <nvgpu/log.h>
+#include <nvgpu/atomic.h>
 
 #include <nvgpu/hw/gm20b/hw_ccsr_gm20b.h>
 #include <nvgpu/hw/gm20b/hw_ram_gm20b.h>

drivers/gpu/nvgpu/gp10b/mc_gp10b.c

@@ -18,6 +18,8 @@
 
 #include "mc_gp10b.h"
 
+#include <nvgpu/atomic.h>
+
 #include <nvgpu/hw/gp10b/hw_mc_gp10b.h>
 
 void mc_gp10b_intr_enable(struct gk20a *g)

drivers/gpu/nvgpu/include/nvgpu/atomic.h

@@ -0,0 +1,20 @@
+/*
+ * Copyright (c) 2017, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+#ifndef __NVGPU_ATOMIC_H__
+#define __NVGPU_ATOMIC_H__
+
+#ifdef __KERNEL__
+#include <linux/atomic.h>
+#endif
+
+#endif

drivers/gpu/nvgpu/include/nvgpu/semaphore.h

@@ -20,6 +20,7 @@
 
 #include <nvgpu/log.h>
 #include <nvgpu/allocator.h>
+#include <nvgpu/atomic.h>
 
 #include "gk20a/gk20a.h"
 #include "gk20a/mm_gk20a.h"

drivers/gpu/nvgpu/vgpu/fifo_vgpu.c

@@ -18,6 +18,7 @@
 
 #include <nvgpu/kmem.h>
 #include <nvgpu/dma.h>
+#include <nvgpu/atomic.h>
 
 #include "vgpu/vgpu.h"
 #include "gk20a/ctxsw_trace_gk20a.h"