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>

23 files changed, 39 insertions, 56 deletions

diff --git a/drivers/gpu/nvgpu/Makefile.nvgpu b/drivers/gpu/nvgpu/Makefile.nvgpu
index 0f8f5bc1..5c2bbb79 100644
--- a/drivers/gpu/nvgpu/Makefile.nvgpu
+++ b/drivers/gpu/nvgpu/Makefile.nvgpu
@@ -32,6 +32,7 @@ nvgpu-y := \
         common/mm/page_allocator.o \
         common/mm/lockless_allocator.o \
         common/nvgpu_common.o \
+        common/semaphore.o \
         gk20a/gk20a.o \
         gk20a/sched_gk20a.o \
         gk20a/as_gk20a.o \
@@ -48,7 +49,6 @@ nvgpu-y := \
         gk20a/mm_gk20a.o \
         gk20a/pmu_gk20a.o \
         gk20a/priv_ring_gk20a.o \
-        gk20a/semaphore_gk20a.o \
         gk20a/fence_gk20a.o \
         gk20a/therm_gk20a.o \
         gk20a/gr_ctx_gk20a_sim.o \
diff --git a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c b/drivers/gpu/nvgpu/common/semaphore.c
index 2038e300..ea4910f1 100644
--- a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.c
+++ b/drivers/gpu/nvgpu/common/semaphore.c
@@ -1,9 +1,7 @@
 /*
- * drivers/video/tegra/host/gk20a/semaphore_gk20a.c
+ * Nvgpu Semaphores
  *
- * GK20A Semaphores
- *
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -21,11 +19,7 @@
 #include <linux/highmem.h>
 #include <linux/slab.h>
 
-#include <asm/pgtable.h>
-
-#include "gk20a.h"
-#include "mm_gk20a.h"
-#include "semaphore_gk20a.h"
+#include <nvgpu/semaphore.h>
 
 #define __lock_sema_sea(s)                                              \
         do {                                                            \
diff --git a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
index b4a1f6f4..2a9ad40d 100644
--- a/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/cde_gk20a.c
@@ -34,7 +34,6 @@
 #include "fence_gk20a.h"
 #include "gr_gk20a.h"
 #include "debug_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_ccsr_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_pbdma_gk20a.h>
diff --git a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
index 7afed41f..62b0a05e 100644
--- a/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/ce2_gk20a.c
@@ -1,7 +1,7 @@
 /*
  * GK20A Graphics Copy Engine  (gr host)
  *
- * Copyright (c) 2011-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2011-2017, 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,
@@ -28,7 +28,6 @@
 
 #include "gk20a.h"
 #include "debug_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_ce2_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_pbdma_gk20a.h>
diff --git a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
index c8b1c105..3fa6bb25 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_gk20a.c
@@ -28,13 +28,13 @@
 #include <linux/vmalloc.h>
 #include <linux/circ_buf.h>
 
-#include "debug_gk20a.h"
-#include "ctxsw_trace_gk20a.h"
+#include <nvgpu/semaphore.h>
 
 #include "gk20a.h"
+#include "debug_gk20a.h"
+#include "ctxsw_trace_gk20a.h"
 #include "dbg_gpu_gk20a.h"
 #include "fence_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/timers.h>
 
diff --git a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
index c3c6fbb8..0eba1c30 100644
--- a/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/channel_sync_gk20a.c
@@ -1,9 +1,7 @@
 /*
- * drivers/video/tegra/host/gk20a/channel_sync_gk20a.c
- *
  * GK20A Channel Synchronization Abstraction
  *
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -20,10 +18,11 @@
 #include <linux/list.h>
 #include <linux/version.h>
 
+#include <nvgpu/semaphore.h>
+
 #include "channel_sync_gk20a.h"
 #include "gk20a.h"
 #include "fence_gk20a.h"
-#include "semaphore_gk20a.h"
 #include "sync_gk20a.h"
 #include "mm_gk20a.h"
 
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>
diff --git a/drivers/gpu/nvgpu/gk20a/fence_gk20a.c b/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
index b8a1dcbc..6bd59067 100644
--- a/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fence_gk20a.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -17,8 +17,9 @@
 #include <linux/file.h>
 #include <linux/version.h>
 
+#include <nvgpu/semaphore.h>
+
 #include "gk20a.h"
-#include "semaphore_gk20a.h"
 #include "channel_gk20a.h"
 #include "sync_gk20a.h"
 
diff --git a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
index 469148c2..c6b444f9 100644
--- a/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/fifo_gk20a.c
@@ -25,11 +25,11 @@
 #include <linux/nvhost.h>
 
 #include <nvgpu/timers.h>
+#include <nvgpu/semaphore.h>
 
 #include "gk20a.h"
 #include "debug_gk20a.h"
 #include "ctxsw_trace_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_fifo_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_pbdma_gk20a.h>
diff --git a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
index cddb3316..0e1c88a4 100644
--- a/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gr_gk20a.c
@@ -41,7 +41,6 @@
 #include "regops_gk20a.h"
 #include "dbg_gpu_gk20a.h"
 #include "debug_gk20a.h"
-#include "semaphore_gk20a.h"
 #include "platform_gk20a.h"
 #include "ctxsw_trace_gk20a.h"
 
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index ea5ea73f..cafb1233 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -33,13 +33,13 @@
 
 #include <nvgpu/timers.h>
 #include <nvgpu/allocator.h>
+#include <nvgpu/semaphore.h>
 #include <nvgpu/page_allocator.h>
 
 #include "gk20a.h"
 #include "mm_gk20a.h"
 #include "fence_gk20a.h"
 #include "kind_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_gmmu_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_fb_gk20a.h>
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index f3dffa46..d39ca2d0 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -52,6 +52,12 @@ enum gk20a_aperture {
         APERTURE_VIDMEM
 };
 
+enum gk20a_mem_rw_flag {
+        gk20a_mem_flag_none = 0,
+        gk20a_mem_flag_read_only = 1,
+        gk20a_mem_flag_write_only = 2,
+};
+
 static inline const char *gk20a_aperture_str(enum gk20a_aperture aperture)
 {
         switch (aperture) {
diff --git a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
index 9924e48f..d53cf09b 100644
--- a/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/pmu_gk20a.c
@@ -29,7 +29,6 @@
 
 #include "gk20a.h"
 #include "gr_gk20a.h"
-#include "semaphore_gk20a.h"
 
 #include <nvgpu/hw/gk20a/hw_mc_gk20a.h>
 #include <nvgpu/hw/gk20a/hw_pwr_gk20a.h>
diff --git a/drivers/gpu/nvgpu/gk20a/sync_gk20a.c b/drivers/gpu/nvgpu/gk20a/sync_gk20a.c
index b642981c..e7bacac8 100644
--- a/drivers/gpu/nvgpu/gk20a/sync_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/sync_gk20a.c
@@ -1,7 +1,7 @@
 /*
  * GK20A Sync Framework Integration
  *
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -13,8 +13,6 @@
  * more details.
  */
 
-#include "sync_gk20a.h"
-
 #include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/file.h>
@@ -23,9 +21,14 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+
 #include <uapi/linux/nvgpu.h>
+
+#include <nvgpu/semaphore.h>
+
 #include "../drivers/staging/android/sync.h"
-#include "semaphore_gk20a.h"
+
+#include "sync_gk20a.h"
 
 static const struct sync_timeline_ops gk20a_sync_timeline_ops;
 
diff --git a/drivers/gpu/nvgpu/gm206/acr_gm206.c b/drivers/gpu/nvgpu/gm206/acr_gm206.c
index 238114e3..3af59374 100644
--- a/drivers/gpu/nvgpu/gm206/acr_gm206.c
+++ b/drivers/gpu/nvgpu/gm206/acr_gm206.c
@@ -21,7 +21,6 @@
 
 #include "gk20a/gk20a.h"
 #include "gk20a/pmu_gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 
 #include "acr.h"
 #include "acr_gm206.h"
diff --git a/drivers/gpu/nvgpu/gm206/ce_gm206.c b/drivers/gpu/nvgpu/gm206/ce_gm206.c
index 5d5fd432..dd3eac95 100644
--- a/drivers/gpu/nvgpu/gm206/ce_gm206.c
+++ b/drivers/gpu/nvgpu/gm206/ce_gm206.c
@@ -1,7 +1,7 @@
 /*
  * GM206 Copy Engine.
  *
- * Copyright (c) 2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2016-2017, 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,
@@ -29,7 +29,6 @@
 #include <linux/nvhost.h>
 
 #include "gk20a/debug_gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 
 #include <nvgpu/hw/gm206/hw_ce2_gm206.h>
 #include <nvgpu/hw/gm206/hw_pbdma_gm206.h>
diff --git a/drivers/gpu/nvgpu/gm20b/acr_gm20b.c b/drivers/gpu/nvgpu/gm20b/acr_gm20b.c
index 060dc778..40a28136 100644
--- a/drivers/gpu/nvgpu/gm20b/acr_gm20b.c
+++ b/drivers/gpu/nvgpu/gm20b/acr_gm20b.c
@@ -26,7 +26,6 @@
 
 #include "gk20a/gk20a.h"
 #include "gk20a/pmu_gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 
 #include <nvgpu/hw/gm20b/hw_pwr_gm20b.h>
 
diff --git a/drivers/gpu/nvgpu/gp106/acr_gp106.c b/drivers/gpu/nvgpu/gp106/acr_gp106.c
index 9e844994..f8d7ba70 100644
--- a/drivers/gpu/nvgpu/gp106/acr_gp106.c
+++ b/drivers/gpu/nvgpu/gp106/acr_gp106.c
@@ -21,7 +21,6 @@
 
 #include "gk20a/gk20a.h"
 #include "gk20a/pmu_gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 
 #include "gm206/acr_gm206.h"
 #include "gm20b/acr_gm20b.h"
diff --git a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
index e04aec7d..a7aa4003 100644
--- a/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/gr_gp10b.c
@@ -24,7 +24,6 @@
 
 #include "gk20a/gk20a.h"
 #include "gk20a/gr_gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 #include "gk20a/dbg_gpu_gk20a.h"
 
 #include "gm20b/gr_gm20b.h"
diff --git a/drivers/gpu/nvgpu/gp10b/mm_gp10b.c b/drivers/gpu/nvgpu/gp10b/mm_gp10b.c
index 835d33f3..776bbe85 100644
--- a/drivers/gpu/nvgpu/gp10b/mm_gp10b.c
+++ b/drivers/gpu/nvgpu/gp10b/mm_gp10b.c
@@ -1,7 +1,7 @@
 /*
  * GP10B MMU
  *
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -17,7 +17,6 @@
 #include <linux/dma-mapping.h>
 
 #include "gk20a/gk20a.h"
-#include "gk20a/semaphore_gk20a.h"
 
 #include "mm_gp10b.h"
 #include "rpfb_gp10b.h"
diff --git a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.h b/drivers/gpu/nvgpu/include/nvgpu/semaphore.h
index 8e09fcfc..07a27584 100644
--- a/drivers/gpu/nvgpu/gk20a/semaphore_gk20a.h
+++ b/drivers/gpu/nvgpu/include/nvgpu/semaphore.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -20,9 +20,9 @@
 
 #include <nvgpu/allocator.h>
 
-#include "gk20a.h"
-#include "mm_gk20a.h"
-#include "channel_gk20a.h"
+#include "gk20a/gk20a.h"
+#include "gk20a/mm_gk20a.h"
+#include "gk20a/channel_gk20a.h"
 
 #define gpu_sema_dbg(fmt, args...)              \
         gk20a_dbg(gpu_dbg_sema, fmt, ##args)
@@ -146,12 +146,6 @@ struct gk20a_semaphore_sea {
         struct mutex sea_lock;          /* Lock alloc/free calls. */
 };
 
-enum gk20a_mem_rw_flag {
-        gk20a_mem_flag_none = 0,
-        gk20a_mem_flag_read_only = 1,
-        gk20a_mem_flag_write_only = 2,
-};
-
 /*
  * Semaphore sea functions.
  */
diff --git a/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c b/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
index 66fda2d9..3d908b0d 100644
--- a/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
+++ b/drivers/gpu/nvgpu/vgpu/gp10b/vgpu_mm_gp10b.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU Memory Management
  *
- * Copyright (c) 2015-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2015-2017, 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,
@@ -16,7 +16,6 @@
 #include <linux/dma-mapping.h>
 #include "vgpu/vgpu.h"
 #include "vgpu_mm_gp10b.h"
-#include "gk20a/semaphore_gk20a.h"
 #include "gk20a/mm_gk20a.h"
 
 static int vgpu_gp10b_init_mm_setup_hw(struct gk20a *g)
diff --git a/drivers/gpu/nvgpu/vgpu/mm_vgpu.c b/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
index f97acd47..eb5f7749 100644
--- a/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
+++ b/drivers/gpu/nvgpu/vgpu/mm_vgpu.c
@@ -1,7 +1,7 @@
 /*
  * Virtualized GPU Memory Management
  *
- * Copyright (c) 2014-2016, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2017, 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,
@@ -15,7 +15,6 @@
 
 #include <linux/dma-mapping.h>
 #include "vgpu/vgpu.h"
-#include "gk20a/semaphore_gk20a.h"
 #include "gk20a/mm_gk20a.h"
 
 static int vgpu_init_mm_setup_sw(struct gk20a *g)