On Tue, Aug 06, 2013 at 09:38:41PM +0200, Daniel Vetter wrote:
> On Wed, Jul 31, 2013 at 05:00:14PM -0700, Ben Widawsky wrote:
> > formerly: "drm/i915: Create VMAs (part 5) - move mm_list"
> >
> > The mm_list is used for the active/inactive LRUs. Since those LRUs are
> > per address space, the link should be per VMx .
> >
> > Because we'll only ever have 1 VMA before this point, it's not incorrect
> > to defer this change until this point in the patch series, and doing it
> > here makes the change much easier to understand.
> >
> > Shamelessly manipulated out of Daniel:
> > "active/inactive stuff is used by eviction when we run out of address
> > space, so needs to be per-vma and per-address space. Bound/unbound otoh
> > is used by the shrinker which only cares about the amount of memory used
> > and not one bit about in which address space this memory is all used in.
> > Of course to actual kick out an object we need to unbind it from every
> > address space, but for that we have the per-object list of vmas."
> >
> > v2: only bump GGTT LRU in i915_gem_object_set_to_gtt_domain (Chris)
> >
> > v3: Moved earlier in the series
> >
> > v4: Add dropped message from v3
> >
> > Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx>
>
> Some comments below for this one. The lru changes look a bit strange so
> I'll wait for your confirmation that the do_switch hunk has the same
> reasons s the one in execbuf with the FIXME comment.
> -Daniel
>
> > ---
> > drivers/gpu/drm/i915/i915_debugfs.c | 53 ++++++++++++++++++++----------
> > drivers/gpu/drm/i915/i915_drv.h | 5 +--
> > drivers/gpu/drm/i915/i915_gem.c | 37 +++++++++++----------
> > drivers/gpu/drm/i915/i915_gem_context.c | 3 ++
> > drivers/gpu/drm/i915/i915_gem_evict.c | 14 ++++----
> > drivers/gpu/drm/i915/i915_gem_execbuffer.c | 2 ++
> > drivers/gpu/drm/i915/i915_gem_stolen.c | 2 +-
> > drivers/gpu/drm/i915/i915_gpu_error.c | 37 ++++++++++++---------
> > 8 files changed, 91 insertions(+), 62 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> > index 6d5ca85bd..181e5a6 100644
> > --- a/drivers/gpu/drm/i915/i915_debugfs.c
> > +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> > @@ -149,7 +149,7 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
> > struct drm_device *dev = node->minor->dev;
> > struct drm_i915_private *dev_priv = dev->dev_private;
> > struct i915_address_space *vm = &dev_priv->gtt.base;
> > - struct drm_i915_gem_object *obj;
> > + struct i915_vma *vma;
> > size_t total_obj_size, total_gtt_size;
> > int count, ret;
> >
> > @@ -157,6 +157,7 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
> > if (ret)
> > return ret;
> >
> > + /* FIXME: the user of this interface might want more than just GGTT */
> > switch (list) {
> > case ACTIVE_LIST:
> > seq_puts(m, "Active:\n");
> > @@ -172,12 +173,12 @@ static int i915_gem_object_list_info(struct seq_file *m, void *data)
> > }
> >
> > total_obj_size = total_gtt_size = count = 0;
> > - list_for_each_entry(obj, head, mm_list) {
> > - seq_puts(m, " ");
> > - describe_obj(m, obj);
> > - seq_putc(m, '\n');
> > - total_obj_size += obj->base.size;
> > - total_gtt_size += i915_gem_obj_ggtt_size(obj);
> > + list_for_each_entry(vma, head, mm_list) {
> > + seq_printf(m, " ");
> > + describe_obj(m, vma->obj);
> > + seq_printf(m, "\n");
> > + total_obj_size += vma->obj->base.size;
> > + total_gtt_size += i915_gem_obj_size(vma->obj, vma->vm);
>
> Why not use vma->node.size? If you don't disagree I'll bikeshed this while
> applying.
>
I think in terms of the diff, it's more logical to do it how I did. The
result should damn well be the same though, so go right ahead. When I
set about writing the series, I really didn't want to use
node.size/start directly as much as possible - so we can sneak things
into the helpers as needed.
> > count++;
> > }
> > mutex_unlock(&dev->struct_mutex);
> > @@ -224,7 +225,18 @@ static int per_file_stats(int id, void *ptr, void *data)
> > return 0;
> > }
> >
> > -static int i915_gem_object_info(struct seq_file *m, void *data)
> > +#define count_vmas(list, member) do { \
> > + list_for_each_entry(vma, list, member) { \
> > + size += i915_gem_obj_ggtt_size(vma->obj); \
> > + ++count; \
> > + if (vma->obj->map_and_fenceable) { \
> > + mappable_size += i915_gem_obj_ggtt_size(vma->obj); \
> > + ++mappable_count; \
> > + } \
> > + } \
> > +} while (0)
> > +
> > +static int i915_gem_object_info(struct seq_file *m, void* data)
> > {
> > struct drm_info_node *node = (struct drm_info_node *) m->private;
> > struct drm_device *dev = node->minor->dev;
> > @@ -234,6 +246,7 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
> > struct drm_i915_gem_object *obj;
> > struct i915_address_space *vm = &dev_priv->gtt.base;
> > struct drm_file *file;
> > + struct i915_vma *vma;
> > int ret;
> >
> > ret = mutex_lock_interruptible(&dev->struct_mutex);
> > @@ -253,12 +266,12 @@ static int i915_gem_object_info(struct seq_file *m, void *data)
> > count, mappable_count, size, mappable_size);
> >
> > size = count = mappable_size = mappable_count = 0;
> > - count_objects(&vm->active_list, mm_list);
> > + count_vmas(&vm->active_list, mm_list);
> > seq_printf(m, " %u [%u] active objects, %zu [%zu] bytes\n",
> > count, mappable_count, size, mappable_size);
> >
> > size = count = mappable_size = mappable_count = 0;
> > - count_objects(&vm->inactive_list, mm_list);
> > + count_vmas(&vm->inactive_list, mm_list);
> > seq_printf(m, " %u [%u] inactive objects, %zu [%zu] bytes\n",
> > count, mappable_count, size, mappable_size);
> >
> > @@ -1771,7 +1784,8 @@ i915_drop_caches_set(void *data, u64 val)
> > struct drm_device *dev = data;
> > struct drm_i915_private *dev_priv = dev->dev_private;
> > struct drm_i915_gem_object *obj, *next;
> > - struct i915_address_space *vm = &dev_priv->gtt.base;
> > + struct i915_address_space *vm;
> > + struct i915_vma *vma, *x;
> > int ret;
> >
> > DRM_DEBUG_DRIVER("Dropping caches: 0x%08llx\n", val);
> > @@ -1792,13 +1806,16 @@ i915_drop_caches_set(void *data, u64 val)
> > i915_gem_retire_requests(dev);
> >
> > if (val & DROP_BOUND) {
> > - list_for_each_entry_safe(obj, next, &vm->inactive_list,
> > - mm_list) {
> > - if (obj->pin_count)
> > - continue;
> > - ret = i915_gem_object_ggtt_unbind(obj);
> > - if (ret)
> > - goto unlock;
> > + list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
> > + list_for_each_entry_safe(vma, x, &vm->inactive_list,
> > + mm_list) {
>
> Imo the double-loop is a bit funny, looping over the global bound list
> and skipping all active objects is imo the more straightfoward logic. But
> I agree that this is the more straightforward conversion, so I'm ok with a
> follow-up fixup patch.
>
I guess we have a lot of such conversions. I don't really mind the
change, just a bit worried that it's less tested than what I've already
done. I'm also not yet convinced the result will be a huge improvement
for readability, but I've been starting at these lists for so long, my
opinion is quite biased.
I guess we'll have to see. I've made a note to myself to look into
converting all these types of loops over, but as we should see little to
no functional impact from the change, I'd like to hold off until we get
the rest merged.
> > + if (vma->obj->pin_count)
> > + continue;
> > +
> > + ret = i915_vma_unbind(vma);
> > + if (ret)
> > + goto unlock;
> > + }
> > }
> > }
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> > index bf1ecef..220699b 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -546,6 +546,9 @@ struct i915_vma {
> > struct drm_i915_gem_object *obj;
> > struct i915_address_space *vm;
> >
> > + /** This object's place on the active/inactive lists */
> > + struct list_head mm_list;
> > +
> > struct list_head vma_link; /* Link in the object's VMA list */
> > };
> >
> > @@ -1263,9 +1266,7 @@ struct drm_i915_gem_object {
> > struct drm_mm_node *stolen;
> > struct list_head global_list;
> >
> > - /** This object's place on the active/inactive lists */
> > struct list_head ring_list;
> > - struct list_head mm_list;
> > /** 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 ec23a5c..fb3f02f 100644
> > --- a/drivers/gpu/drm/i915/i915_gem.c
> > +++ b/drivers/gpu/drm/i915/i915_gem.c
> > @@ -1872,7 +1872,6 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
> > {
> > struct drm_device *dev = obj->base.dev;
> > struct drm_i915_private *dev_priv = dev->dev_private;
> > - struct i915_address_space *vm = &dev_priv->gtt.base;
> > u32 seqno = intel_ring_get_seqno(ring);
> >
> > BUG_ON(ring == NULL);
> > @@ -1888,8 +1887,6 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
> > obj->active = 1;
> > }
> >
> > - /* Move from whatever list we were on to the tail of execution. */
> > - list_move_tail(&obj->mm_list, &vm->active_list);
> > list_move_tail(&obj->ring_list, &ring->active_list);
> >
> > obj->last_read_seqno = seqno;
> > @@ -1911,14 +1908,14 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
> > static void
> > i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
> > {
> > - struct drm_device *dev = obj->base.dev;
> > - struct drm_i915_private *dev_priv = dev->dev_private;
> > - struct i915_address_space *vm = &dev_priv->gtt.base;
> > + struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
> > + struct i915_address_space *ggtt_vm = &dev_priv->gtt.base;
> > + struct i915_vma *vma = i915_gem_obj_to_vma(obj, ggtt_vm);
> >
> > BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS);
> > BUG_ON(!obj->active);
> >
> > - list_move_tail(&obj->mm_list, &vm->inactive_list);
> > + list_move_tail(&vma->mm_list, &ggtt_vm->inactive_list);
> >
> > list_del_init(&obj->ring_list);
> > obj->ring = NULL;
> > @@ -2286,9 +2283,9 @@ void i915_gem_restore_fences(struct drm_device *dev)
> > void i915_gem_reset(struct drm_device *dev)
> > {
> > struct drm_i915_private *dev_priv = dev->dev_private;
> > - struct i915_address_space *vm;
> > - struct drm_i915_gem_object *obj;
> > struct intel_ring_buffer *ring;
> > + struct i915_address_space *vm;
> > + struct i915_vma *vma;
> > int i;
> >
> > for_each_ring(ring, dev_priv, i)
> > @@ -2298,8 +2295,8 @@ void i915_gem_reset(struct drm_device *dev)
> > * necessary invalidation upon reuse.
> > */
> > list_for_each_entry(vm, &dev_priv->vm_list, global_link)
> > - list_for_each_entry(obj, &vm->inactive_list, mm_list)
> > - obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS;
> > + list_for_each_entry(vma, &vm->inactive_list, mm_list)
> > + vma->obj->base.read_domains &= ~I915_GEM_GPU_DOMAINS;
> >
> > i915_gem_restore_fences(dev);
> > }
> > @@ -2353,6 +2350,7 @@ i915_gem_retire_requests_ring(struct intel_ring_buffer *ring)
> > if (!i915_seqno_passed(seqno, obj->last_read_seqno))
> > break;
> >
> > + BUG_ON(!obj->active);
> > i915_gem_object_move_to_inactive(obj);
> > }
> >
> > @@ -2635,7 +2633,6 @@ int i915_vma_unbind(struct i915_vma *vma)
> > i915_gem_gtt_finish_object(obj);
> > i915_gem_object_unpin_pages(obj);
> >
> > - list_del(&obj->mm_list);
> > /* Avoid an unnecessary call to unbind on rebind. */
> > if (i915_is_ggtt(vma->vm))
> > obj->map_and_fenceable = true;
> > @@ -3180,7 +3177,7 @@ search_free:
> > goto err_out;
> >
> > list_move_tail(&obj->global_list, &dev_priv->mm.bound_list);
> > - list_add_tail(&obj->mm_list, &vm->inactive_list);
> > + list_add_tail(&vma->mm_list, &vm->inactive_list);
> >
> > /* Keep GGTT vmas first to make debug easier */
> > if (i915_is_ggtt(vm))
> > @@ -3342,9 +3339,14 @@ i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write)
> > old_write_domain);
> >
> > /* And bump the LRU for this access */
> > - if (i915_gem_object_is_inactive(obj))
> > - list_move_tail(&obj->mm_list,
> > - &dev_priv->gtt.base.inactive_list);
> > + if (i915_gem_object_is_inactive(obj)) {
> > + struct i915_vma *vma = i915_gem_obj_to_vma(obj,
> > + &dev_priv->gtt.base);
> > + if (vma)
> > + list_move_tail(&vma->mm_list,
> > + &dev_priv->gtt.base.inactive_list);
> > +
> > + }
> >
> > return 0;
> > }
> > @@ -3917,7 +3919,6 @@ unlock:
> > void i915_gem_object_init(struct drm_i915_gem_object *obj,
> > const struct drm_i915_gem_object_ops *ops)
> > {
> > - INIT_LIST_HEAD(&obj->mm_list);
> > INIT_LIST_HEAD(&obj->global_list);
> > INIT_LIST_HEAD(&obj->ring_list);
> > INIT_LIST_HEAD(&obj->exec_list);
> > @@ -4054,6 +4055,7 @@ struct i915_vma *i915_gem_vma_create(struct drm_i915_gem_object *obj,
> > return ERR_PTR(-ENOMEM);
> >
> > INIT_LIST_HEAD(&vma->vma_link);
> > + INIT_LIST_HEAD(&vma->mm_list);
> > vma->vm = vm;
> > vma->obj = obj;
> >
> > @@ -4063,6 +4065,7 @@ struct i915_vma *i915_gem_vma_create(struct drm_i915_gem_object *obj,
> > void i915_gem_vma_destroy(struct i915_vma *vma)
> > {
> > list_del_init(&vma->vma_link);
> > + list_del(&vma->mm_list);
> > drm_mm_remove_node(&vma->node);
> > kfree(vma);
> > }
> > diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
> > index d1cb28c..88b0f52 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_context.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_context.c
> > @@ -436,7 +436,10 @@ static int do_switch(struct i915_hw_context *to)
> > * MI_SET_CONTEXT instead of when the next seqno has completed.
> > */
> > if (from != NULL) {
> > + struct drm_i915_private *dev_priv = from->obj->base.dev->dev_private;
> > + struct i915_address_space *ggtt = &dev_priv->gtt.base;
> > from->obj->base.read_domains = I915_GEM_DOMAIN_INSTRUCTION;
> > + list_move_tail(&i915_gem_obj_to_vma(from->obj, ggtt)->mm_list, &ggtt->active_list);
>
> I don't really see a reason to add this here ... shouldn't move_to_active
> take care of this? Obviously not in this patch here but later on when it's
> converted over.
Yes. You're right - it's sort of an ugly intermediate artifact.
>
> > i915_gem_object_move_to_active(from->obj, ring);
> > /* As long as MI_SET_CONTEXT is serializing, ie. it flushes the
> > * whole damn pipeline, we don't need to explicitly mark the
> > diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
> > index 61bf5e2..425939b 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_evict.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_evict.c
> > @@ -87,8 +87,7 @@ i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
> > drm_mm_init_scan(&vm->mm, min_size, alignment, cache_level);
> >
> > /* First see if there is a large enough contiguous idle region... */
> > - list_for_each_entry(obj, &vm->inactive_list, mm_list) {
> > - struct i915_vma *vma = i915_gem_obj_to_vma(obj, vm);
> > + list_for_each_entry(vma, &vm->inactive_list, mm_list) {
> > if (mark_free(vma, &unwind_list))
> > goto found;
> > }
> > @@ -97,8 +96,7 @@ i915_gem_evict_something(struct drm_device *dev, struct i915_address_space *vm,
> > goto none;
> >
> > /* Now merge in the soon-to-be-expired objects... */
> > - list_for_each_entry(obj, &vm->active_list, mm_list) {
> > - struct i915_vma *vma = i915_gem_obj_to_vma(obj, vm);
> > + list_for_each_entry(vma, &vm->active_list, mm_list) {
> > if (mark_free(vma, &unwind_list))
> > goto found;
> > }
> > @@ -159,7 +157,7 @@ i915_gem_evict_everything(struct drm_device *dev)
> > {
> > drm_i915_private_t *dev_priv = dev->dev_private;
> > struct i915_address_space *vm;
> > - struct drm_i915_gem_object *obj, *next;
> > + struct i915_vma *vma, *next;
> > bool lists_empty = true;
> > int ret;
> >
> > @@ -187,9 +185,9 @@ i915_gem_evict_everything(struct drm_device *dev)
> >
> > /* Having flushed everything, unbind() should never raise an error */
> > list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
> > - list_for_each_entry_safe(obj, next, &vm->inactive_list, mm_list)
> > - if (obj->pin_count == 0)
> > - WARN_ON(i915_vma_unbind(i915_gem_obj_to_vma(obj, vm)));
> > + list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list)
> > + if (vma->obj->pin_count == 0)
> > + WARN_ON(i915_vma_unbind(vma));
> > }
> >
> > return 0;
> > diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> > index 64dc6b5..0f21702 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
> > @@ -801,6 +801,8 @@ i915_gem_execbuffer_move_to_active(struct list_head *objects,
> > obj->base.read_domains = obj->base.pending_read_domains;
> > obj->fenced_gpu_access = obj->pending_fenced_gpu_access;
> >
> > + /* FIXME: This lookup gets fixed later <-- danvet */
> > + list_move_tail(&i915_gem_obj_to_vma(obj, vm)->mm_list, &vm->active_list);
>
> Ah, I guess the same comment applies to the lru frobbing in do_switch?
>
> > i915_gem_object_move_to_active(obj, ring);
> > if (obj->base.write_domain) {
> > obj->dirty = 1;
> > diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
> > index 000ffbd..fa60103 100644
> > --- a/drivers/gpu/drm/i915/i915_gem_stolen.c
> > +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
> > @@ -419,7 +419,7 @@ i915_gem_object_create_stolen_for_preallocated(struct drm_device *dev,
> > obj->has_global_gtt_mapping = 1;
> >
> > list_add_tail(&obj->global_list, &dev_priv->mm.bound_list);
> > - list_add_tail(&obj->mm_list, &ggtt->inactive_list);
> > + list_add_tail(&vma->mm_list, &ggtt->inactive_list);
> >
> > return obj;
> >
> > diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
> > index d970d84..9623a4e 100644
> > --- a/drivers/gpu/drm/i915/i915_gpu_error.c
> > +++ b/drivers/gpu/drm/i915/i915_gpu_error.c
> > @@ -556,11 +556,11 @@ static void capture_bo(struct drm_i915_error_buffer *err,
> > static u32 capture_active_bo(struct drm_i915_error_buffer *err,
> > int count, struct list_head *head)
> > {
> > - struct drm_i915_gem_object *obj;
> > + struct i915_vma *vma;
> > int i = 0;
> >
> > - list_for_each_entry(obj, head, mm_list) {
> > - capture_bo(err++, obj);
> > + list_for_each_entry(vma, head, mm_list) {
> > + capture_bo(err++, vma->obj);
> > if (++i == count)
> > break;
> > }
> > @@ -622,7 +622,8 @@ static struct drm_i915_error_object *
> > i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
> > struct intel_ring_buffer *ring)
> > {
> > - struct i915_address_space *vm = &dev_priv->gtt.base;
> > + struct i915_address_space *vm;
> > + struct i915_vma *vma;
> > struct drm_i915_gem_object *obj;
> > u32 seqno;
> >
> > @@ -642,20 +643,23 @@ i915_error_first_batchbuffer(struct drm_i915_private *dev_priv,
> > }
> >
> > seqno = ring->get_seqno(ring, false);
> > - list_for_each_entry(obj, &vm->active_list, mm_list) {
> > - if (obj->ring != ring)
> > - continue;
> > + list_for_each_entry(vm, &dev_priv->vm_list, global_link) {
> > + list_for_each_entry(vma, &vm->active_list, mm_list) {
>
> We could instead loop over the bound list and check for ->active. But this
> is ok, too albeit a bit convoluted imo.
>
> > + obj = vma->obj;
> > + if (obj->ring != ring)
> > + continue;
> >
> > - if (i915_seqno_passed(seqno, obj->last_read_seqno))
> > - continue;
> > + if (i915_seqno_passed(seqno, obj->last_read_seqno))
> > + continue;
> >
> > - if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0)
> > - continue;
> > + if ((obj->base.read_domains & I915_GEM_DOMAIN_COMMAND) == 0)
> > + continue;
> >
> > - /* We need to copy these to an anonymous buffer as the simplest
> > - * method to avoid being overwritten by userspace.
> > - */
> > - return i915_error_object_create(dev_priv, obj);
> > + /* We need to copy these to an anonymous buffer as the simplest
> > + * method to avoid being overwritten by userspace.
> > + */
> > + return i915_error_object_create(dev_priv, obj);
> > + }
> > }
> >
> > return NULL;
> > @@ -775,11 +779,12 @@ static void i915_gem_capture_buffers(struct drm_i915_private *dev_priv,
> > struct drm_i915_error_state *error)
> > {
> > struct i915_address_space *vm = &dev_priv->gtt.base;
> > + struct i915_vma *vma;
> > struct drm_i915_gem_object *obj;
> > int i;
> >
> > i = 0;
> > - list_for_each_entry(obj, &vm->active_list, mm_list)
> > + list_for_each_entry(vma, &vm->active_list, mm_list)
> > i++;
> > error->active_bo_count = i;
> > list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list)
--
Ben Widawsky, Intel Open Source Technology Center
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