On 20/07/16 09:59, Chris Wilson wrote:
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 11 +++++++++++
drivers/gpu/drm/i915/i915_gem.c | 4 ++--
drivers/gpu/drm/i915/i915_gem_dmabuf.c | 3 +--
drivers/gpu/drm/i915/i915_gem_evict.c | 2 +-
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 4 ++--
drivers/gpu/drm/i915/i915_gem_shrinker.c | 2 +-
drivers/gpu/drm/i915/i915_gem_userptr.c | 3 +--
drivers/gpu/drm/i915/intel_display.c | 3 +--
8 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 47f244f9c64e..163d28e8e92c 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2306,6 +2306,17 @@ __deprecated
extern struct drm_gem_object *
drm_gem_object_lookup(struct drm_file *file, u32 handle);
+__attribute__((nonnull))
+static inline struct drm_i915_gem_object *
+i915_gem_object_get(struct drm_i915_gem_object *obj)
+{
+ drm_gem_object_reference(&obj->base);
+ return obj;
+}
+
+__deprecated
+extern void drm_gem_object_reference(struct drm_gem_object *);
+
static inline bool
i915_gem_object_has_struct_page(const struct drm_i915_gem_object *obj)
{
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 970496419098..f886c0bb24ca 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -289,7 +289,7 @@ drop_pages(struct drm_i915_gem_object *obj)
struct i915_vma *vma, *next;
int ret;
- drm_gem_object_reference(&obj->base);
+ i915_gem_object_get(obj);
list_for_each_entry_safe(vma, next, &obj->vma_list, obj_link)
if (i915_vma_unbind(vma))
break;
@@ -2361,7 +2361,7 @@ void i915_vma_move_to_active(struct i915_vma *vma,
/* Add a reference if we're newly entering the active list. */
if (obj->active == 0)
- drm_gem_object_reference(&obj->base);
+ i915_gem_object_get(obj);
obj->active |= intel_engine_flag(engine);
list_move_tail(&obj->engine_list[engine->id], &engine->active_list);
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index 7d08ac08c401..3a00ab3ad06e 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -278,8 +278,7 @@ struct drm_gem_object *i915_gem_prime_import(struct drm_device *dev,
* Importing dmabuf exported from out own gem increases
* refcount on gem itself instead of f_count of dmabuf.
*/
- drm_gem_object_reference(&obj->base);
- return &obj->base;
+ return &i915_gem_object_get(obj)->base;
This would be a good place to write
return to_gem_object(i915_gem_object_get(obj));
if you had a to_gem_object() function :)
}
}
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index b1194c7c0a48..56103948ee16 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -183,7 +183,7 @@ found:
exec_list);
if (drm_mm_scan_remove_block(&vma->node)) {
list_move(&vma->exec_list, &eviction_list);
- drm_gem_object_reference(&vma->obj->base);
+ i915_gem_object_get(vma->obj);
continue;
}
list_del_init(&vma->exec_list);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 551dd4f549fa..28bcc99a0cc1 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -123,7 +123,7 @@ eb_lookup_vmas(struct eb_vmas *eb,
goto err;
}
- drm_gem_object_reference(&obj->base);
+ i915_gem_object_get(obj);
list_add_tail(&obj->obj_exec_link, &objects);
}
spin_unlock(&file->table_lock);
@@ -1236,7 +1236,7 @@ i915_gem_execbuffer_parse(struct intel_engine_cs *engine,
vma = i915_gem_obj_to_ggtt(shadow_batch_obj);
vma->exec_entry = shadow_exec_entry;
vma->exec_entry->flags = __EXEC_OBJECT_HAS_PIN;
- drm_gem_object_reference(&shadow_batch_obj->base);
+ i915_gem_object_get(shadow_batch_obj);
list_add_tail(&vma->exec_list, &eb->vmas);
shadow_batch_obj->base.pending_read_domains = I915_GEM_DOMAIN_COMMAND;
diff --git a/drivers/gpu/drm/i915/i915_gem_shrinker.c b/drivers/gpu/drm/i915/i915_gem_shrinker.c
index 6f10b421487b..3aa76d3608ea 100644
--- a/drivers/gpu/drm/i915/i915_gem_shrinker.c
+++ b/drivers/gpu/drm/i915/i915_gem_shrinker.c
@@ -190,7 +190,7 @@ i915_gem_shrink(struct drm_i915_private *dev_priv,
if (!can_release_pages(obj))
continue;
- drm_gem_object_reference(&obj->base);
+ i915_gem_object_get(obj);
/* For the unbound phase, this should be a no-op! */
list_for_each_entry_safe(vma, v,
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index ba16e044fac6..c41bf74f926e 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -622,8 +622,7 @@ __i915_gem_userptr_get_pages_schedule(struct drm_i915_gem_object *obj,
obj->userptr.work = &work->work;
obj->userptr.workers++;
- work->obj = obj;
- drm_gem_object_reference(&obj->base);
+ work->obj = i915_gem_object_get(obj);
work->task = current;
get_task_struct(work->task);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 77d320584478..84904a2d3fcd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11649,7 +11649,6 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
/* Reference the objects for the scheduled work. */
drm_framebuffer_reference(work->old_fb);
- drm_gem_object_reference(&obj->base);
crtc->primary->fb = fb;
update_state_fb(crtc->primary);
@@ -11657,7 +11656,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc,
intel_fbc_pre_update(intel_crtc, intel_crtc->config,
to_intel_plane_state(primary->state));
- work->pending_flip_obj = obj;
+ work->pending_flip_obj = i915_gem_object_get(obj);
ret = i915_mutex_lock_interruptible(dev);
if (ret)
This last one moves the point at which the reference is taken past
several function calls; is that intentional, or at least harmless?
With that answered, then
Reviewed-by: Dave Gordon <david.s.gordon@xxxxxxxxx>
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