Re: [PATCH 21/29] drm/i915: mm_list is per VMA

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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.

>  		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.

> +				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.

>  		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)
> -- 
> 1.8.3.4
> 
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx

-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
_______________________________________________
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Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/intel-gfx




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