[PATCH 1/4] drm/i915: s/obj->exec_list/obj->obj_exec_link

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From: Ben Widawsky <ben@xxxxxxxxxxxx>

To convert the execbuf code over to use vmas natively we need to
shuffle the exec_list a bit. This patch here just prepares things with
the debugfs code, which also uses the old exec_list list_head, newly
called obj_exec_link.

Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
[danvet: Split out from Ben's big patch.]
Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 12 ++++++------
 drivers/gpu/drm/i915/i915_drv.h     |  2 ++
 drivers/gpu/drm/i915/i915_gem.c     |  1 +
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index eb87865..4785d8c 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -195,9 +195,9 @@ static int obj_rank_by_stolen(void *priv,
 			      struct list_head *A, struct list_head *B)
 {
 	struct drm_i915_gem_object *a =
-		container_of(A, struct drm_i915_gem_object, exec_list);
+		container_of(A, struct drm_i915_gem_object, obj_exec_link);
 	struct drm_i915_gem_object *b =
-		container_of(B, struct drm_i915_gem_object, exec_list);
+		container_of(B, struct drm_i915_gem_object, obj_exec_link);
 
 	return a->stolen->start - b->stolen->start;
 }
@@ -221,7 +221,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 		if (obj->stolen == NULL)
 			continue;
 
-		list_add(&obj->exec_list, &stolen);
+		list_add(&obj->obj_exec_link, &stolen);
 
 		total_obj_size += obj->base.size;
 		total_gtt_size += i915_gem_obj_ggtt_size(obj);
@@ -231,7 +231,7 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 		if (obj->stolen == NULL)
 			continue;
 
-		list_add(&obj->exec_list, &stolen);
+		list_add(&obj->obj_exec_link, &stolen);
 
 		total_obj_size += obj->base.size;
 		count++;
@@ -239,11 +239,11 @@ static int i915_gem_stolen_list_info(struct seq_file *m, void *data)
 	list_sort(NULL, &stolen, obj_rank_by_stolen);
 	seq_puts(m, "Stolen:\n");
 	while (!list_empty(&stolen)) {
-		obj = list_first_entry(&stolen, typeof(*obj), exec_list);
+		obj = list_first_entry(&stolen, typeof(*obj), obj_exec_link);
 		seq_puts(m, "   ");
 		describe_obj(m, obj);
 		seq_putc(m, '\n');
-		list_del_init(&obj->exec_list);
+		list_del_init(&obj->obj_exec_link);
 	}
 	mutex_unlock(&dev->struct_mutex);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2e7d5f9..6532d97 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1312,6 +1312,8 @@ struct drm_i915_gem_object {
 	struct list_head global_list;
 
 	struct list_head ring_list;
+	/** Used in execbuf to temporarily hold a ref */
+	struct list_head obj_exec_link;
 	/** This object's place in the batchbuffer or on the eviction list */
 	struct list_head exec_list;
 
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index fd48724..219e2fb 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3993,6 +3993,7 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj,
 	INIT_LIST_HEAD(&obj->global_list);
 	INIT_LIST_HEAD(&obj->ring_list);
 	INIT_LIST_HEAD(&obj->exec_list);
+	INIT_LIST_HEAD(&obj->obj_exec_link);
 	INIT_LIST_HEAD(&obj->vma_list);
 
 	obj->ops = ops;
-- 
1.8.4.rc1

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