drm/ttm, drm/vmwgfx: Move the lock- and object functionality to the vmwgfx driver

No other driver is using this functionality so move it out of TTM and
into the vmwgfx driver. Update includes and remove exports.
Also annotate to remove false static analyzer lock balance warnings.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

10 files changed, 15 insertions, 38 deletions

diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index a60e560804e0..01fc670ce7a2 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -4,8 +4,8 @@
 
 ttm-y := ttm_memory.o ttm_tt.o ttm_bo.o \
 	ttm_bo_util.o ttm_bo_vm.o ttm_module.o \
-	ttm_object.o ttm_lock.o ttm_execbuf_util.o ttm_page_alloc.o \
-	ttm_bo_manager.o ttm_page_alloc_dma.o
+	ttm_execbuf_util.o ttm_page_alloc.o ttm_bo_manager.o \
+	ttm_page_alloc_dma.o
 ttm-$(CONFIG_AGP) += ttm_agp_backend.o
 
 obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile
index 09b2aa08363e..22fdc07e03ad 100644
--- a/drivers/gpu/drm/vmwgfx/Makefile
+++ b/drivers/gpu/drm/vmwgfx/Makefile
@@ -7,6 +7,7 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_surface.o vmwgfx_prime.o vmwgfx_mob.o vmwgfx_shader.o \
 	    vmwgfx_cmdbuf_res.o vmwgfx_cmdbuf.o vmwgfx_stdu.o \
 	    vmwgfx_cotable.o vmwgfx_so.o vmwgfx_binding.o vmwgfx_msg.o \
-	    vmwgfx_simple_resource.o vmwgfx_va.o vmwgfx_blit.o
+	    vmwgfx_simple_resource.o vmwgfx_va.o vmwgfx_blit.o \
+	    ttm_object.o ttm_lock.o
 
 obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o
diff --git a/drivers/gpu/drm/ttm/ttm_lock.c b/drivers/gpu/drm/vmwgfx/ttm_lock.c
index 20694b8a01ca..0d59f5a19e17 100644
--- a/drivers/gpu/drm/ttm/ttm_lock.c
+++ b/drivers/gpu/drm/vmwgfx/ttm_lock.c
@@ -29,13 +29,13 @@
  * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
  */
 
-#include <drm/ttm/ttm_lock.h>
 #include <drm/ttm/ttm_module.h>
 #include <linux/atomic.h>
 #include <linux/errno.h>
 #include <linux/wait.h>
 #include <linux/sched/signal.h>
-#include <linux/module.h>
+#include "ttm_lock.h"
+#include "ttm_object.h"
 
 #define TTM_WRITE_LOCK_PENDING    (1 << 0)
 #define TTM_VT_LOCK_PENDING       (1 << 1)
@@ -52,7 +52,6 @@ void ttm_lock_init(struct ttm_lock *lock)
 	lock->kill_takers = false;
 	lock->signal = SIGKILL;
 }
-EXPORT_SYMBOL(ttm_lock_init);
 
 void ttm_read_unlock(struct ttm_lock *lock)
 {
@@ -61,7 +60,6 @@ void ttm_read_unlock(struct ttm_lock *lock)
 		wake_up_all(&lock->queue);
 	spin_unlock(&lock->lock);
 }
-EXPORT_SYMBOL(ttm_read_unlock);
 
 static bool __ttm_read_lock(struct ttm_lock *lock)
 {
@@ -92,7 +90,6 @@ int ttm_read_lock(struct ttm_lock *lock, bool interruptible)
 		wait_event(lock->queue, __ttm_read_lock(lock));
 	return ret;
 }
-EXPORT_SYMBOL(ttm_read_lock);
 
 static bool __ttm_read_trylock(struct ttm_lock *lock, bool *locked)
 {
@@ -144,7 +141,6 @@ void ttm_write_unlock(struct ttm_lock *lock)
 	wake_up_all(&lock->queue);
 	spin_unlock(&lock->lock);
 }
-EXPORT_SYMBOL(ttm_write_unlock);
 
 static bool __ttm_write_lock(struct ttm_lock *lock)
 {
@@ -185,7 +181,6 @@ int ttm_write_lock(struct ttm_lock *lock, bool interruptible)
 
 	return ret;
 }
-EXPORT_SYMBOL(ttm_write_lock);
 
 static int __ttm_vt_unlock(struct ttm_lock *lock)
 {
@@ -262,14 +257,12 @@ int ttm_vt_lock(struct ttm_lock *lock,
 
 	return ret;
 }
-EXPORT_SYMBOL(ttm_vt_lock);
 
 int ttm_vt_unlock(struct ttm_lock *lock)
 {
 	return ttm_ref_object_base_unref(lock->vt_holder,
 					 lock->base.hash.key, TTM_REF_USAGE);
 }
-EXPORT_SYMBOL(ttm_vt_unlock);
 
 void ttm_suspend_unlock(struct ttm_lock *lock)
 {
@@ -278,7 +271,6 @@ void ttm_suspend_unlock(struct ttm_lock *lock)
 	wake_up_all(&lock->queue);
 	spin_unlock(&lock->lock);
 }
-EXPORT_SYMBOL(ttm_suspend_unlock);
 
 static bool __ttm_suspend_lock(struct ttm_lock *lock)
 {
@@ -300,4 +292,3 @@ void ttm_suspend_lock(struct ttm_lock *lock)
 {
 	wait_event(lock->queue, __ttm_suspend_lock(lock));
 }
-EXPORT_SYMBOL(ttm_suspend_lock);
diff --git a/include/drm/ttm/ttm_lock.h b/drivers/gpu/drm/vmwgfx/ttm_lock.h
index 0c3af9836863..0c3af9836863 100644
--- a/include/drm/ttm/ttm_lock.h
+++ b/drivers/gpu/drm/vmwgfx/ttm_lock.h
diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/vmwgfx/ttm_object.c
index 74f1b1eb1f8e..190e2591e1f5 100644
--- a/drivers/gpu/drm/ttm/ttm_object.c
+++ b/drivers/gpu/drm/vmwgfx/ttm_object.c
@@ -59,13 +59,12 @@
 
 #define pr_fmt(fmt) "[TTM] " fmt
 
-#include <drm/ttm/ttm_object.h>
 #include <drm/ttm/ttm_module.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
 #include <linux/slab.h>
-#include <linux/module.h>
 #include <linux/atomic.h>
+#include "ttm_object.h"
 
 struct ttm_object_file {
 	struct ttm_object_device *tdev;
@@ -194,7 +193,6 @@ out_err1:
 out_err0:
 	return ret;
 }
-EXPORT_SYMBOL(ttm_base_object_init);
 
 static void ttm_release_base(struct kref *kref)
 {
@@ -225,7 +223,6 @@ void ttm_base_object_unref(struct ttm_base_object **p_base)
 
 	kref_put(&base->refcount, ttm_release_base);
 }
-EXPORT_SYMBOL(ttm_base_object_unref);
 
 struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file *tfile,
 					       uint32_t key)
@@ -247,7 +244,6 @@ struct ttm_base_object *ttm_base_object_lookup(struct ttm_object_file *tfile,
 
 	return base;
 }
-EXPORT_SYMBOL(ttm_base_object_lookup);
 
 struct ttm_base_object *
 ttm_base_object_lookup_for_ref(struct ttm_object_device *tdev, uint32_t key)
@@ -269,7 +265,6 @@ ttm_base_object_lookup_for_ref(struct ttm_object_device *tdev, uint32_t key)
 
 	return base;
 }
-EXPORT_SYMBOL(ttm_base_object_lookup_for_ref);
 
 /**
  * ttm_ref_object_exists - Check whether a caller has a valid ref object
@@ -315,7 +310,6 @@ bool ttm_ref_object_exists(struct ttm_object_file *tfile,
 	rcu_read_unlock();
 	return false;
 }
-EXPORT_SYMBOL(ttm_ref_object_exists);
 
 int ttm_ref_object_add(struct ttm_object_file *tfile,
 		       struct ttm_base_object *base,
@@ -391,9 +385,9 @@ int ttm_ref_object_add(struct ttm_object_file *tfile,
 
 	return ret;
 }
-EXPORT_SYMBOL(ttm_ref_object_add);
 
-static void ttm_ref_object_release(struct kref *kref)
+static void __releases(tfile->lock) __acquires(tfile->lock)
+ttm_ref_object_release(struct kref *kref)
 {
 	struct ttm_ref_object *ref =
 	    container_of(kref, struct ttm_ref_object, kref);
@@ -435,7 +429,6 @@ int ttm_ref_object_base_unref(struct ttm_object_file *tfile,
 	spin_unlock(&tfile->lock);
 	return 0;
 }
-EXPORT_SYMBOL(ttm_ref_object_base_unref);
 
 void ttm_object_file_release(struct ttm_object_file **p_tfile)
 {
@@ -464,7 +457,6 @@ void ttm_object_file_release(struct ttm_object_file **p_tfile)
 
 	ttm_object_file_unref(&tfile);
 }
-EXPORT_SYMBOL(ttm_object_file_release);
 
 struct ttm_object_file *ttm_object_file_init(struct ttm_object_device *tdev,
 					     unsigned int hash_order)
@@ -499,7 +491,6 @@ out_err:
 
 	return NULL;
 }
-EXPORT_SYMBOL(ttm_object_file_init);
 
 struct ttm_object_device *
 ttm_object_device_init(struct ttm_mem_global *mem_glob,
@@ -530,7 +521,6 @@ out_no_object_hash:
 	kfree(tdev);
 	return NULL;
 }
-EXPORT_SYMBOL(ttm_object_device_init);
 
 void ttm_object_device_release(struct ttm_object_device **p_tdev)
 {
@@ -542,7 +532,6 @@ void ttm_object_device_release(struct ttm_object_device **p_tdev)
 
 	kfree(tdev);
 }
-EXPORT_SYMBOL(ttm_object_device_release);
 
 /**
  * get_dma_buf_unless_doomed - get a dma_buf reference if possible.
@@ -648,7 +637,6 @@ int ttm_prime_fd_to_handle(struct ttm_object_file *tfile,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ttm_prime_fd_to_handle);
 
 /**
  * ttm_prime_handle_to_fd - Return a dma_buf fd from a ttm prime object
@@ -739,7 +727,6 @@ out_unref:
 		ttm_base_object_unref(&base);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ttm_prime_handle_to_fd);
 
 /**
  * ttm_prime_object_init - Initialize a ttm_prime_object
@@ -772,4 +759,3 @@ int ttm_prime_object_init(struct ttm_object_file *tfile, size_t size,
 				    ttm_prime_refcount_release,
 				    ref_obj_release);
 }
-EXPORT_SYMBOL(ttm_prime_object_init);
diff --git a/include/drm/ttm/ttm_object.h b/drivers/gpu/drm/vmwgfx/ttm_object.h
index a98bfeb4239e..1c1b9cc118f8 100644
--- a/include/drm/ttm/ttm_object.h
+++ b/drivers/gpu/drm/vmwgfx/ttm_object.h
@@ -42,8 +42,7 @@
 #include <linux/kref.h>
 #include <linux/rcupdate.h>
 #include <linux/dma-buf.h>
-
-#include "ttm_memory.h"
+#include <drm/ttm/ttm_memory.h>
 
 /**
  * enum ttm_ref_type
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index 2dda03345761..36e84acee3ea 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -30,7 +30,7 @@
 
 #include <drm/drmP.h>
 #include "vmwgfx_drv.h"
-#include "drm/ttm/ttm_object.h"
+#include "ttm_object.h"
 
 
 /**
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index bb6dbbe18835..d9c178e235b4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -30,9 +30,9 @@
 #include <drm/drmP.h>
 #include "vmwgfx_drv.h"
 #include "vmwgfx_binding.h"
+#include "ttm_object.h"
 #include <drm/ttm/ttm_placement.h>
 #include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_object.h>
 #include <drm/ttm/ttm_module.h>
 #include <linux/dma_remapping.h>
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 1abe21758b0d..1aa11c39f07f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -35,11 +35,11 @@
 #include <drm/drm_auth.h>
 #include <linux/suspend.h>
 #include <drm/ttm/ttm_bo_driver.h>
-#include <drm/ttm/ttm_object.h>
-#include <drm/ttm/ttm_lock.h>
 #include <drm/ttm/ttm_execbuf_util.h>
 #include <drm/ttm/ttm_module.h>
 #include "vmwgfx_fence.h"
+#include "ttm_object.h"
+#include "ttm_lock.h"
 #include <linux/sync_file.h>
 
 #define VMWGFX_DRIVER_NAME "vmwgfx"
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
index 0861c821a7fe..e420675e8db3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
@@ -31,8 +31,8 @@
  */
 
 #include "vmwgfx_drv.h"
+#include "ttm_object.h"
 #include <linux/dma-buf.h>
-#include <drm/ttm/ttm_object.h>
 
 /*
  * DMA-BUF attach- and mapping methods. No need to implement