drm/amdgpu: rename rmn to amn in the MMU notifier code (v2)

Just a copy&paste leftover from radeon.

v2: rebase (Alex)

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
index 83e344fbb50a2e86f1c73f0a1d674c8717ddeb2d..37570a1c6db88169240128dbb98d64009c1e29b9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c
@@ -64,7 +64,7 @@ struct amdgpu_mn_node {
 };
 
 /**
- * amdgpu_mn_destroy - destroy the rmn
+ * amdgpu_mn_destroy - destroy the amn
  *
  * @work: previously sheduled work item
  *
@@ -72,26 +72,26 @@ struct amdgpu_mn_node {
  */
 static void amdgpu_mn_destroy(struct work_struct *work)
 {
-       struct amdgpu_mn *rmn = container_of(work, struct amdgpu_mn, work);
-       struct amdgpu_device *adev = rmn->adev;
+       struct amdgpu_mn *amn = container_of(work, struct amdgpu_mn, work);
+       struct amdgpu_device *adev = amn->adev;
        struct amdgpu_mn_node *node, *next_node;
        struct amdgpu_bo *bo, *next_bo;
 
        mutex_lock(&adev->mn_lock);
-       down_write(&rmn->lock);
-       hash_del(&rmn->node);
+       down_write(&amn->lock);
+       hash_del(&amn->node);
        rbtree_postorder_for_each_entry_safe(node, next_node,
-                                            &rmn->objects.rb_root, it.rb) {
+                                            &amn->objects.rb_root, it.rb) {
                list_for_each_entry_safe(bo, next_bo, &node->bos, mn_list) {
                        bo->mn = NULL;
                        list_del_init(&bo->mn_list);
                }
                kfree(node);
        }
-       up_write(&rmn->lock);
+       up_write(&amn->lock);
        mutex_unlock(&adev->mn_lock);
-       mmu_notifier_unregister_no_release(&rmn->mn, rmn->mm);
-       kfree(rmn);
+       mmu_notifier_unregister_no_release(&amn->mn, amn->mm);
+       kfree(amn);
 }
 
 /**
@@ -105,9 +105,9 @@ static void amdgpu_mn_destroy(struct work_struct *work)
 static void amdgpu_mn_release(struct mmu_notifier *mn,
                              struct mm_struct *mm)
 {
-       struct amdgpu_mn *rmn = container_of(mn, struct amdgpu_mn, mn);
-       INIT_WORK(&rmn->work, amdgpu_mn_destroy);
-       schedule_work(&rmn->work);
+       struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
+       INIT_WORK(&amn->work, amdgpu_mn_destroy);
+       schedule_work(&amn->work);
 }
 
 
@@ -130,31 +130,31 @@ void amdgpu_mn_unlock(struct amdgpu_mn *mn)
 }
 
 /**
- * amdgpu_mn_read_lock - take the rmn read lock
+ * amdgpu_mn_read_lock - take the amn read lock
  *
- * @rmn: our notifier
+ * @amn: our notifier
  *
- * Take the rmn read side lock.
+ * Take the amn read side lock.
  */
-static void amdgpu_mn_read_lock(struct amdgpu_mn *rmn)
+static void amdgpu_mn_read_lock(struct amdgpu_mn *amn)
 {
-       mutex_lock(&rmn->read_lock);
-       if (atomic_inc_return(&rmn->recursion) == 1)
-               down_read_non_owner(&rmn->lock);
-       mutex_unlock(&rmn->read_lock);
+       mutex_lock(&amn->read_lock);
+       if (atomic_inc_return(&amn->recursion) == 1)
+               down_read_non_owner(&amn->lock);
+       mutex_unlock(&amn->read_lock);
 }
 
 /**
- * amdgpu_mn_read_unlock - drop the rmn read lock
+ * amdgpu_mn_read_unlock - drop the amn read lock
  *
- * @rmn: our notifier
+ * @amn: our notifier
  *
- * Drop the rmn read side lock.
+ * Drop the amn read side lock.
  */
-static void amdgpu_mn_read_unlock(struct amdgpu_mn *rmn)
+static void amdgpu_mn_read_unlock(struct amdgpu_mn *amn)
 {
-       if (atomic_dec_return(&rmn->recursion) == 0)
-               up_read_non_owner(&rmn->lock);
+       if (atomic_dec_return(&amn->recursion) == 0)
+               up_read_non_owner(&amn->lock);
 }
 
 /**
@@ -202,15 +202,15 @@ static void amdgpu_mn_invalidate_range_start_gfx(struct mmu_notifier *mn,
                                                 unsigned long start,
                                                 unsigned long end)
 {
-       struct amdgpu_mn *rmn = container_of(mn, struct amdgpu_mn, mn);
+       struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
        struct interval_tree_node *it;
 
        /* notification is exclusive, but interval is inclusive */
        end -= 1;
 
-       amdgpu_mn_read_lock(rmn);
+       amdgpu_mn_read_lock(amn);
 
-       it = interval_tree_iter_first(&rmn->objects, start, end);
+       it = interval_tree_iter_first(&amn->objects, start, end);
        while (it) {
                struct amdgpu_mn_node *node;
 
@@ -238,15 +238,15 @@ static void amdgpu_mn_invalidate_range_start_hsa(struct mmu_notifier *mn,
                                                 unsigned long start,
                                                 unsigned long end)
 {
-       struct amdgpu_mn *rmn = container_of(mn, struct amdgpu_mn, mn);
+       struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
        struct interval_tree_node *it;
 
        /* notification is exclusive, but interval is inclusive */
        end -= 1;
 
-       amdgpu_mn_read_lock(rmn);
+       amdgpu_mn_read_lock(amn);
 
-       it = interval_tree_iter_first(&rmn->objects, start, end);
+       it = interval_tree_iter_first(&amn->objects, start, end);
        while (it) {
                struct amdgpu_mn_node *node;
                struct amdgpu_bo *bo;
@@ -279,9 +279,9 @@ static void amdgpu_mn_invalidate_range_end(struct mmu_notifier *mn,
                                           unsigned long start,
                                           unsigned long end)
 {
-       struct amdgpu_mn *rmn = container_of(mn, struct amdgpu_mn, mn);
+       struct amdgpu_mn *amn = container_of(mn, struct amdgpu_mn, mn);
 
-       amdgpu_mn_read_unlock(rmn);
+       amdgpu_mn_read_unlock(amn);
 }
 
 static const struct mmu_notifier_ops amdgpu_mn_ops[] = {
@@ -315,7 +315,7 @@ struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
                                enum amdgpu_mn_type type)
 {
        struct mm_struct *mm = current->mm;
-       struct amdgpu_mn *rmn;
+       struct amdgpu_mn *amn;
        unsigned long key = AMDGPU_MN_KEY(mm, type);
        int r;
 
@@ -325,41 +325,41 @@ struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
                return ERR_PTR(-EINTR);
        }
 
-       hash_for_each_possible(adev->mn_hash, rmn, node, key)
-               if (AMDGPU_MN_KEY(rmn->mm, rmn->type) == key)
+       hash_for_each_possible(adev->mn_hash, amn, node, key)
+               if (AMDGPU_MN_KEY(amn->mm, amn->type) == key)
                        goto release_locks;
 
-       rmn = kzalloc(sizeof(*rmn), GFP_KERNEL);
-       if (!rmn) {
-               rmn = ERR_PTR(-ENOMEM);
+       amn = kzalloc(sizeof(*amn), GFP_KERNEL);
+       if (!amn) {
+               amn = ERR_PTR(-ENOMEM);
                goto release_locks;
        }
 
-       rmn->adev = adev;
-       rmn->mm = mm;
-       init_rwsem(&rmn->lock);
-       rmn->type = type;
-       rmn->mn.ops = &amdgpu_mn_ops[type];
-       rmn->objects = RB_ROOT_CACHED;
-       mutex_init(&rmn->read_lock);
-       atomic_set(&rmn->recursion, 0);
+       amn->adev = adev;
+       amn->mm = mm;
+       init_rwsem(&amn->lock);
+       amn->type = type;
+       amn->mn.ops = &amdgpu_mn_ops[type];
+       amn->objects = RB_ROOT_CACHED;
+       mutex_init(&amn->read_lock);
+       atomic_set(&amn->recursion, 0);
 
-       r = __mmu_notifier_register(&rmn->mn, mm);
+       r = __mmu_notifier_register(&amn->mn, mm);
        if (r)
-               goto free_rmn;
+               goto free_amn;
 
-       hash_add(adev->mn_hash, &rmn->node, AMDGPU_MN_KEY(mm, type));
+       hash_add(adev->mn_hash, &amn->node, AMDGPU_MN_KEY(mm, type));
 
 release_locks:
        up_write(&mm->mmap_sem);
        mutex_unlock(&adev->mn_lock);
 
-       return rmn;
+       return amn;
 
-free_rmn:
+free_amn:
        up_write(&mm->mmap_sem);
        mutex_unlock(&adev->mn_lock);
-       kfree(rmn);
+       kfree(amn);
 
        return ERR_PTR(r);
 }
@@ -379,14 +379,14 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
        struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
        enum amdgpu_mn_type type =
                bo->kfd_bo ? AMDGPU_MN_TYPE_HSA : AMDGPU_MN_TYPE_GFX;
-       struct amdgpu_mn *rmn;
+       struct amdgpu_mn *amn;
        struct amdgpu_mn_node *node = NULL, *new_node;
        struct list_head bos;
        struct interval_tree_node *it;
 
-       rmn = amdgpu_mn_get(adev, type);
-       if (IS_ERR(rmn))
-               return PTR_ERR(rmn);
+       amn = amdgpu_mn_get(adev, type);
+       if (IS_ERR(amn))
+               return PTR_ERR(amn);
 
        new_node = kmalloc(sizeof(*new_node), GFP_KERNEL);
        if (!new_node)
@@ -394,12 +394,12 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
 
        INIT_LIST_HEAD(&bos);
 
-       down_write(&rmn->lock);
+       down_write(&amn->lock);
 
-       while ((it = interval_tree_iter_first(&rmn->objects, addr, end))) {
+       while ((it = interval_tree_iter_first(&amn->objects, addr, end))) {
                kfree(node);
                node = container_of(it, struct amdgpu_mn_node, it);
-               interval_tree_remove(&node->it, &rmn->objects);
+               interval_tree_remove(&node->it, &amn->objects);
                addr = min(it->start, addr);
                end = max(it->last, end);
                list_splice(&node->bos, &bos);
@@ -410,7 +410,7 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
        else
                kfree(new_node);
 
-       bo->mn = rmn;
+       bo->mn = amn;
 
        node->it.start = addr;
        node->it.last = end;
@@ -418,9 +418,9 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
        list_splice(&bos, &node->bos);
        list_add(&bo->mn_list, &node->bos);
 
-       interval_tree_insert(&node->it, &rmn->objects);
+       interval_tree_insert(&node->it, &amn->objects);
 
-       up_write(&rmn->lock);
+       up_write(&amn->lock);
 
        return 0;
 }
@@ -435,18 +435,18 @@ int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
 void amdgpu_mn_unregister(struct amdgpu_bo *bo)
 {
        struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
-       struct amdgpu_mn *rmn;
+       struct amdgpu_mn *amn;
        struct list_head *head;
 
        mutex_lock(&adev->mn_lock);
 
-       rmn = bo->mn;
-       if (rmn == NULL) {
+       amn = bo->mn;
+       if (amn == NULL) {
                mutex_unlock(&adev->mn_lock);
                return;
        }
 
-       down_write(&rmn->lock);
+       down_write(&amn->lock);
 
        /* save the next list entry for later */
        head = bo->mn_list.next;
@@ -457,11 +457,11 @@ void amdgpu_mn_unregister(struct amdgpu_bo *bo)
        if (list_empty(head)) {
                struct amdgpu_mn_node *node;
                node = container_of(head, struct amdgpu_mn_node, bos);
-               interval_tree_remove(&node->it, &rmn->objects);
+               interval_tree_remove(&node->it, &amn->objects);
                kfree(node);
        }
 
-       up_write(&rmn->lock);
+       up_write(&amn->lock);
        mutex_unlock(&adev->mn_lock);
 }