gpu: nvgpu: Organize semaphore_gk20a.[ch]

Move semaphore_gk20a.c drivers/gpu/nvgpu/common/ since the semaphore
code is common to all chips.

Move the semaphore_gk20a.h header file to drivers/gpu/nvgpu/include/nvgpu
and rename it to semaphore.h. Also update all places where the header
is inluced to use the new path.

This revealed an odd location for the enum gk20a_mem_rw_flag. This should
be in the mm headers. As a result many places that did not need anything
semaphore related had to include the semaphore header file. Fixing this
oddity allowed the semaphore include to be removed from many C files that
did not need it.

Bug 1799159

Change-Id: Ie017219acf34c4c481747323b9f3ac33e76e064c
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1284627
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
index 37ba720a..83fdc05d 100644
--- a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
@@ -1,6 +1,4 @@
 /*
- * drivers/video/tegra/host/t20/debug_gk20a.c
- *
  * Copyright (C) 2011-2017 NVIDIA Corporation.  All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
@@ -20,12 +18,12 @@
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-
 #include <linux/io.h>
 
+#include <nvgpu/semaphore.h>
+
 #include "gk20a.h"
 #include "debug_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_ram_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_fifo_gk20a.h>