[Intel-gfx] [PATCH v3] drm/i915: Do not use ggtt_view with (aliasing) PPGTT
Daniel Vetter
daniel at ffwll.ch
Mon Mar 16 10:50:49 PDT 2015
On Mon, Mar 16, 2015 at 02:11:13PM +0200, Joonas Lahtinen wrote:
> GGTT views are only applicable when dealing with GGTT. Change the code to
> reject ggtt_view where it should not be used and require it when it should
> be.
>
> v2:
> - Dropped _ppgtt_ infixes, allow both types to be passed
> - Disregard other but normal views when no view is specified
> - More checks that valid parameters are passed
> - More readable error checking
>
> v3:
> - Prefer WARN_ONCE over BUG_ON when there is code path for failure
>
> Signed-off-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 102 +++++++++------------
> drivers/gpu/drm/i915/i915_gem.c | 175 ++++++++++++++++++++++++++++--------
> drivers/gpu/drm/i915/i915_gem_gtt.c | 71 +++++++++++----
> 3 files changed, 229 insertions(+), 119 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index a76c6ee..996f6a1 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2623,20 +2623,16 @@ void i915_gem_vma_destroy(struct i915_vma *vma);
> #define PIN_GLOBAL 0x4
> #define PIN_OFFSET_BIAS 0x8
> #define PIN_OFFSET_MASK (~4095)
> -int __must_check i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - uint32_t alignment,
> - uint64_t flags,
> - const struct i915_ggtt_view *view);
> -static inline
> -int __must_check i915_gem_object_pin(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - uint32_t alignment,
> - uint64_t flags)
> -{
> - return i915_gem_object_pin_view(obj, vm, alignment, flags,
> - &i915_ggtt_view_normal);
> -}
> +int __must_check
> +i915_gem_object_pin(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm,
> + uint32_t alignment,
> + uint64_t flags);
> +int __must_check
> +i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
> + const struct i915_ggtt_view *view,
> + uint32_t alignment,
> + uint64_t flags);
>
> int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
> u32 flags);
> @@ -2800,60 +2796,48 @@ struct dma_buf *i915_gem_prime_export(struct drm_device *dev,
>
> void i915_gem_restore_fences(struct drm_device *dev);
>
> -unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm,
> - enum i915_ggtt_view_type view);
> -static inline
> -unsigned long i915_gem_obj_offset(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm)
> +static inline bool i915_is_ggtt(struct i915_address_space *vm);
This forward decl seems unneeded leftover from earlier patch iterations.
I've removed it and merged the patch.
Thanks, Daniel
> +
> +unsigned long
> +i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
> + enum i915_ggtt_view_type view);
> +unsigned long
> +i915_gem_obj_offset(struct drm_i915_gem_object *o,
> + struct i915_address_space *vm);
> +static inline unsigned long
> +i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *o)
> {
> - return i915_gem_obj_offset_view(o, vm, I915_GGTT_VIEW_NORMAL);
> + return i915_gem_obj_ggtt_offset_view(o, I915_GGTT_VIEW_NORMAL);
> }
> +
> bool i915_gem_obj_bound_any(struct drm_i915_gem_object *o);
> -bool i915_gem_obj_bound_view(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm,
> - enum i915_ggtt_view_type view);
> -static inline
> +bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
> + enum i915_ggtt_view_type view);
> bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm)
> -{
> - return i915_gem_obj_bound_view(o, vm, I915_GGTT_VIEW_NORMAL);
> -}
> + struct i915_address_space *vm);
>
> unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
> struct i915_address_space *vm);
> -struct i915_vma *i915_gem_obj_to_vma_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - const struct i915_ggtt_view *view);
> -static inline
> -struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm)
> -{
> - return i915_gem_obj_to_vma_view(obj, vm, &i915_ggtt_view_normal);
> -}
> -
> struct i915_vma *
> -i915_gem_obj_lookup_or_create_vma_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - const struct i915_ggtt_view *view);
> +i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm);
> +struct i915_vma *
> +i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
> + const struct i915_ggtt_view *view);
>
> -static inline
> struct i915_vma *
> i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm)
> -{
> - return i915_gem_obj_lookup_or_create_vma_view(obj, vm,
> - &i915_ggtt_view_normal);
> -}
> + struct i915_address_space *vm);
> +struct i915_vma *
> +i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
> + const struct i915_ggtt_view *view);
>
> -struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj);
> -static inline bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj) {
> - struct i915_vma *vma;
> - list_for_each_entry(vma, &obj->vma_list, vma_link)
> - if (vma->pin_count > 0)
> - return true;
> - return false;
> +static inline struct i915_vma *
> +i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
> +{
> + return i915_gem_obj_to_ggtt_view(obj, &i915_ggtt_view_normal);
> }
> +bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj);
>
> /* Some GGTT VM helpers */
> #define i915_obj_to_ggtt(obj) \
> @@ -2876,13 +2860,7 @@ i915_vm_to_ppgtt(struct i915_address_space *vm)
>
> static inline bool i915_gem_obj_ggtt_bound(struct drm_i915_gem_object *obj)
> {
> - return i915_gem_obj_bound(obj, i915_obj_to_ggtt(obj));
> -}
> -
> -static inline unsigned long
> -i915_gem_obj_ggtt_offset(struct drm_i915_gem_object *obj)
> -{
> - return i915_gem_obj_offset(obj, i915_obj_to_ggtt(obj));
> + return i915_gem_obj_ggtt_bound_view(obj, I915_GGTT_VIEW_NORMAL);
> }
>
> static inline unsigned long
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 0fe313d..e2876bf 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -3518,9 +3518,9 @@ static bool i915_gem_valid_gtt_space(struct i915_vma *vma,
> static struct i915_vma *
> i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
> struct i915_address_space *vm,
> + const struct i915_ggtt_view *ggtt_view,
> unsigned alignment,
> - uint64_t flags,
> - const struct i915_ggtt_view *view)
> + uint64_t flags)
> {
> struct drm_device *dev = obj->base.dev;
> struct drm_i915_private *dev_priv = dev->dev_private;
> @@ -3532,6 +3532,9 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
> struct i915_vma *vma;
> int ret;
>
> + if(WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
> + return ERR_PTR(-EINVAL);
> +
> fence_size = i915_gem_get_gtt_size(dev,
> obj->base.size,
> obj->tiling_mode);
> @@ -3570,7 +3573,9 @@ i915_gem_object_bind_to_vm(struct drm_i915_gem_object *obj,
>
> i915_gem_object_pin_pages(obj);
>
> - vma = i915_gem_obj_lookup_or_create_vma_view(obj, vm, view);
> + vma = ggtt_view ? i915_gem_obj_lookup_or_create_ggtt_vma(obj, ggtt_view) :
> + i915_gem_obj_lookup_or_create_vma(obj, vm);
> +
> if (IS_ERR(vma))
> goto err_unpin;
>
> @@ -4167,12 +4172,12 @@ i915_vma_misplaced(struct i915_vma *vma, uint32_t alignment, uint64_t flags)
> return false;
> }
>
> -int
> -i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - uint32_t alignment,
> - uint64_t flags,
> - const struct i915_ggtt_view *view)
> +static int
> +i915_gem_object_do_pin(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm,
> + const struct i915_ggtt_view *ggtt_view,
> + uint32_t alignment,
> + uint64_t flags)
> {
> struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
> struct i915_vma *vma;
> @@ -4188,17 +4193,29 @@ i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
> if (WARN_ON((flags & (PIN_MAPPABLE | PIN_GLOBAL)) == PIN_MAPPABLE))
> return -EINVAL;
>
> - vma = i915_gem_obj_to_vma_view(obj, vm, view);
> + if (WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
> + return -EINVAL;
> +
> + vma = ggtt_view ? i915_gem_obj_to_ggtt_view(obj, ggtt_view) :
> + i915_gem_obj_to_vma(obj, vm);
> +
> + if (IS_ERR(vma))
> + return PTR_ERR(vma);
> +
> if (vma) {
> if (WARN_ON(vma->pin_count == DRM_I915_GEM_OBJECT_MAX_PIN_COUNT))
> return -EBUSY;
>
> if (i915_vma_misplaced(vma, alignment, flags)) {
> + unsigned long offset;
> + offset = ggtt_view ? i915_gem_obj_ggtt_offset_view(obj, ggtt_view->type) :
> + i915_gem_obj_offset(obj, vm);
> WARN(vma->pin_count,
> - "bo is already pinned with incorrect alignment:"
> + "bo is already pinned in %s with incorrect alignment:"
> " offset=%lx, req.alignment=%x, req.map_and_fenceable=%d,"
> " obj->map_and_fenceable=%d\n",
> - i915_gem_obj_offset_view(obj, vm, view->type),
> + ggtt_view ? "ggtt" : "ppgtt",
> + offset,
> alignment,
> !!(flags & PIN_MAPPABLE),
> obj->map_and_fenceable);
> @@ -4212,8 +4229,8 @@ i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
>
> bound = vma ? vma->bound : 0;
> if (vma == NULL || !drm_mm_node_allocated(&vma->node)) {
> - vma = i915_gem_object_bind_to_vm(obj, vm, alignment,
> - flags, view);
> + vma = i915_gem_object_bind_to_vm(obj, vm, ggtt_view, alignment,
> + flags);
> if (IS_ERR(vma))
> return PTR_ERR(vma);
> }
> @@ -4254,6 +4271,30 @@ i915_gem_object_pin_view(struct drm_i915_gem_object *obj,
> return 0;
> }
>
> +int
> +i915_gem_object_pin(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm,
> + uint32_t alignment,
> + uint64_t flags)
> +{
> + return i915_gem_object_do_pin(obj, vm,
> + i915_is_ggtt(vm) ? &i915_ggtt_view_normal : NULL,
> + alignment, flags);
> +}
> +
> +int
> +i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
> + const struct i915_ggtt_view *view,
> + uint32_t alignment,
> + uint64_t flags)
> +{
> + if (WARN_ONCE(!view, "no view specified"))
> + return -EINVAL;
> +
> + return i915_gem_object_do_pin(obj, i915_obj_to_ggtt(obj), view,
> + alignment, flags);
> +}
> +
> void
> i915_gem_object_ggtt_unpin(struct drm_i915_gem_object *obj)
> {
> @@ -4559,15 +4600,32 @@ void i915_gem_free_object(struct drm_gem_object *gem_obj)
> intel_runtime_pm_put(dev_priv);
> }
>
> -struct i915_vma *i915_gem_obj_to_vma_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - const struct i915_ggtt_view *view)
> +struct i915_vma *i915_gem_obj_to_vma(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm)
> {
> struct i915_vma *vma;
> - list_for_each_entry(vma, &obj->vma_list, vma_link)
> - if (vma->vm == vm && vma->ggtt_view.type == view->type)
> + list_for_each_entry(vma, &obj->vma_list, vma_link) {
> + if (i915_is_ggtt(vma->vm) &&
> + vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
> + continue;
> + if (vma->vm == vm)
> return vma;
> + }
> + return NULL;
> +}
>
> +struct i915_vma *i915_gem_obj_to_ggtt_view(struct drm_i915_gem_object *obj,
> + const struct i915_ggtt_view *view)
> +{
> + struct i915_address_space *ggtt = i915_obj_to_ggtt(obj);
> + struct i915_vma *vma;
> +
> + if (WARN_ONCE(!view, "no view specified"))
> + return ERR_PTR(-EINVAL);
> +
> + list_for_each_entry(vma, &obj->vma_list, vma_link)
> + if (vma->vm == ggtt && vma->ggtt_view.type == view->type)
> + return vma;
> return NULL;
> }
>
> @@ -5176,9 +5234,9 @@ i915_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc)
> }
>
> /* All the new VM stuff */
> -unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm,
> - enum i915_ggtt_view_type view)
> +unsigned long
> +i915_gem_obj_offset(struct drm_i915_gem_object *o,
> + struct i915_address_space *vm)
> {
> struct drm_i915_private *dev_priv = o->base.dev->dev_private;
> struct i915_vma *vma;
> @@ -5186,23 +5244,58 @@ unsigned long i915_gem_obj_offset_view(struct drm_i915_gem_object *o,
> WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base);
>
> list_for_each_entry(vma, &o->vma_list, vma_link) {
> - if (vma->vm == vm && vma->ggtt_view.type == view)
> + if (i915_is_ggtt(vma->vm) &&
> + vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
> + continue;
> + if (vma->vm == vm)
> return vma->node.start;
> -
> }
> +
> WARN(1, "%s vma for this object not found.\n",
> i915_is_ggtt(vm) ? "global" : "ppgtt");
> return -1;
> }
>
> -bool i915_gem_obj_bound_view(struct drm_i915_gem_object *o,
> - struct i915_address_space *vm,
> - enum i915_ggtt_view_type view)
> +unsigned long
> +i915_gem_obj_ggtt_offset_view(struct drm_i915_gem_object *o,
> + enum i915_ggtt_view_type view)
> {
> + struct drm_i915_private *dev_priv = o->base.dev->dev_private;
> + struct i915_address_space *ggtt = i915_obj_to_ggtt(o);
> struct i915_vma *vma;
>
> list_for_each_entry(vma, &o->vma_list, vma_link)
> - if (vma->vm == vm &&
> + if (vma->vm == ggtt && vma->ggtt_view.type == view)
> + return vma->node.start;
> +
> + WARN(1, "global vma for this object not found.\n");
> + return -1;
> +}
> +
> +bool i915_gem_obj_bound(struct drm_i915_gem_object *o,
> + struct i915_address_space *vm)
> +{
> + struct i915_vma *vma;
> +
> + list_for_each_entry(vma, &o->vma_list, vma_link) {
> + if (i915_is_ggtt(vma->vm) &&
> + vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
> + continue;
> + if (vma->vm == vm && drm_mm_node_allocated(&vma->node))
> + return true;
> + }
> +
> + return false;
> +}
> +
> +bool i915_gem_obj_ggtt_bound_view(struct drm_i915_gem_object *o,
> + enum i915_ggtt_view_type view)
> +{
> + struct i915_address_space *ggtt = i915_obj_to_ggtt(o);
> + struct i915_vma *vma;
> +
> + list_for_each_entry(vma, &o->vma_list, vma_link)
> + if (vma->vm == ggtt &&
> vma->ggtt_view.type == view &&
> drm_mm_node_allocated(&vma->node))
> return true;
> @@ -5231,10 +5324,13 @@ unsigned long i915_gem_obj_size(struct drm_i915_gem_object *o,
>
> BUG_ON(list_empty(&o->vma_list));
>
> - list_for_each_entry(vma, &o->vma_list, vma_link)
> + list_for_each_entry(vma, &o->vma_list, vma_link) {
> + if (i915_is_ggtt(vma->vm) &&
> + vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
> + continue;
> if (vma->vm == vm)
> return vma->node.size;
> -
> + }
> return 0;
> }
>
> @@ -5334,15 +5430,16 @@ i915_gem_shrinker_oom(struct notifier_block *nb, unsigned long event, void *ptr)
> return NOTIFY_DONE;
> }
>
> -struct i915_vma *i915_gem_obj_to_ggtt(struct drm_i915_gem_object *obj)
> +bool i915_gem_obj_is_pinned(struct drm_i915_gem_object *obj)
> {
> - struct i915_address_space *ggtt = i915_obj_to_ggtt(obj);
> struct i915_vma *vma;
> -
> - list_for_each_entry(vma, &obj->vma_list, vma_link)
> - if (vma->vm == ggtt &&
> - vma->ggtt_view.type == I915_GGTT_VIEW_NORMAL)
> - return vma;
> -
> - return NULL;
> + list_for_each_entry(vma, &obj->vma_list, vma_link) {
> + if (i915_is_ggtt(vma->vm) &&
> + vma->ggtt_view.type != I915_GGTT_VIEW_NORMAL)
> + continue;
> + if (vma->pin_count > 0)
> + return true;
> + }
> + return false;
> }
> +
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index 2034f7c..f1b9ea6 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -67,8 +67,9 @@
> * i915_ggtt_view_type and struct i915_ggtt_view.
> *
> * A new flavour of core GEM functions which work with GGTT bound objects were
> - * added with the _view suffix. They take the struct i915_ggtt_view parameter
> - * encapsulating all metadata required to implement a view.
> + * added with the _ggtt_ infix, and sometimes with _view postfix to avoid
> + * renaming in large amounts of code. They take the struct i915_ggtt_view
> + * parameter encapsulating all metadata required to implement a view.
> *
> * As a helper for callers which are only interested in the normal view,
> * globally const i915_ggtt_view_normal singleton instance exists. All old core
> @@ -1726,11 +1727,15 @@ static void ggtt_bind_vma(struct i915_vma *vma,
> struct drm_device *dev = vma->vm->dev;
> struct drm_i915_private *dev_priv = dev->dev_private;
> struct drm_i915_gem_object *obj = vma->obj;
> + struct sg_table *pages = obj->pages;
>
> /* Currently applicable only to VLV */
> if (obj->gt_ro)
> flags |= PTE_READ_ONLY;
>
> + if (i915_is_ggtt(vma->vm))
> + pages = vma->ggtt_view.pages;
> +
> /* If there is no aliasing PPGTT, or the caller needs a global mapping,
> * or we have a global mapping already but the cacheability flags have
> * changed, set the global PTEs.
> @@ -1745,7 +1750,7 @@ static void ggtt_bind_vma(struct i915_vma *vma,
> if (!dev_priv->mm.aliasing_ppgtt || flags & GLOBAL_BIND) {
> if (!(vma->bound & GLOBAL_BIND) ||
> (cache_level != obj->cache_level)) {
> - vma->vm->insert_entries(vma->vm, vma->ggtt_view.pages,
> + vma->vm->insert_entries(vma->vm, pages,
> vma->node.start,
> cache_level, flags);
> vma->bound |= GLOBAL_BIND;
> @@ -1756,8 +1761,7 @@ static void ggtt_bind_vma(struct i915_vma *vma,
> (!(vma->bound & LOCAL_BIND) ||
> (cache_level != obj->cache_level))) {
> struct i915_hw_ppgtt *appgtt = dev_priv->mm.aliasing_ppgtt;
> - appgtt->base.insert_entries(&appgtt->base,
> - vma->ggtt_view.pages,
> + appgtt->base.insert_entries(&appgtt->base, pages,
> vma->node.start,
> cache_level, flags);
> vma->bound |= LOCAL_BIND;
> @@ -2331,23 +2335,28 @@ int i915_gem_gtt_init(struct drm_device *dev)
> return 0;
> }
>
> -static struct i915_vma *__i915_gem_vma_create(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> - const struct i915_ggtt_view *view)
> +static struct i915_vma *
> +__i915_gem_vma_create(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm,
> + const struct i915_ggtt_view *ggtt_view)
> {
> struct i915_vma *vma = kzalloc(sizeof(*vma), GFP_KERNEL);
> if (vma == NULL)
> return ERR_PTR(-ENOMEM);
>
> + if (WARN_ON(i915_is_ggtt(vm) != !!ggtt_view))
> + return ERR_PTR(-EINVAL);
> +
> INIT_LIST_HEAD(&vma->vma_link);
> INIT_LIST_HEAD(&vma->mm_list);
> INIT_LIST_HEAD(&vma->exec_list);
> vma->vm = vm;
> vma->obj = obj;
> - vma->ggtt_view = *view;
>
> if (INTEL_INFO(vm->dev)->gen >= 6) {
> if (i915_is_ggtt(vm)) {
> + vma->ggtt_view = *ggtt_view;
> +
> vma->unbind_vma = ggtt_unbind_vma;
> vma->bind_vma = ggtt_bind_vma;
> } else {
> @@ -2356,6 +2365,7 @@ static struct i915_vma *__i915_gem_vma_create(struct drm_i915_gem_object *obj,
> }
> } else {
> BUG_ON(!i915_is_ggtt(vm));
> + vma->ggtt_view = *ggtt_view;
> vma->unbind_vma = i915_ggtt_unbind_vma;
> vma->bind_vma = i915_ggtt_bind_vma;
> }
> @@ -2368,21 +2378,44 @@ static struct i915_vma *__i915_gem_vma_create(struct drm_i915_gem_object *obj,
> }
>
> struct i915_vma *
> -i915_gem_obj_lookup_or_create_vma_view(struct drm_i915_gem_object *obj,
> - struct i915_address_space *vm,
> +i915_gem_obj_lookup_or_create_vma(struct drm_i915_gem_object *obj,
> + struct i915_address_space *vm)
> +{
> + struct i915_vma *vma;
> +
> + vma = i915_gem_obj_to_vma(obj, vm);
> + if (!vma)
> + vma = __i915_gem_vma_create(obj, vm,
> + i915_is_ggtt(vm) ? &i915_ggtt_view_normal : NULL);
> +
> + return vma;
> +}
> +
> +struct i915_vma *
> +i915_gem_obj_lookup_or_create_ggtt_vma(struct drm_i915_gem_object *obj,
> const struct i915_ggtt_view *view)
> {
> + struct i915_address_space *ggtt = i915_obj_to_ggtt(obj);
> struct i915_vma *vma;
>
> - vma = i915_gem_obj_to_vma_view(obj, vm, view);
> + if (WARN_ON(!view))
> + return ERR_PTR(-EINVAL);
> +
> + vma = i915_gem_obj_to_ggtt_view(obj, view);
> +
> + if (IS_ERR(vma))
> + return vma;
> +
> if (!vma)
> - vma = __i915_gem_vma_create(obj, vm, view);
> + vma = __i915_gem_vma_create(obj, ggtt, view);
>
> return vma;
> +
> }
>
> +
> static inline
> -int i915_get_vma_pages(struct i915_vma *vma)
> +int i915_get_ggtt_vma_pages(struct i915_vma *vma)
> {
> if (vma->ggtt_view.pages)
> return 0;
> @@ -2394,7 +2427,7 @@ int i915_get_vma_pages(struct i915_vma *vma)
> vma->ggtt_view.type);
>
> if (!vma->ggtt_view.pages) {
> - DRM_ERROR("Failed to get pages for VMA view type %u!\n",
> + DRM_ERROR("Failed to get pages for GGTT view type %u!\n",
> vma->ggtt_view.type);
> return -EINVAL;
> }
> @@ -2415,10 +2448,12 @@ int i915_get_vma_pages(struct i915_vma *vma)
> int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level,
> u32 flags)
> {
> - int ret = i915_get_vma_pages(vma);
> + if (i915_is_ggtt(vma->vm)) {
> + int ret = i915_get_ggtt_vma_pages(vma);
>
> - if (ret)
> - return ret;
> + if (ret)
> + return ret;
> + }
>
> vma->bind_vma(vma, cache_level, flags);
>
> --
> 1.9.3
>
>
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
More information about the Intel-gfx
mailing list