| Message ID | 20171206124914.19960-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, 2017-12-06 at 12:49 +0000, Chris Wilson wrote: > Originally we translated from the object to the vma by walking > obj->vma_list to find the matching vm (for user lookups). Now we process > user lookups using the rbtree, and we only use obj->vma_list itself for > maintaining state (e.g. ensuring that all vma are flushed or rebound). > As such maintenance needs to go on beyond the user's awareness of the > vma, defer removal of the vma from the obj->vma_list from i915_vma_close() > to i915_vma_destroy() > > Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> > Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> > Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Regards, Joonas
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 80b78fb5daac..5504be753092 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3746,7 +3746,8 @@ int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj, return -EBUSY; } - if (i915_gem_valid_gtt_space(vma, cache_level)) + if (!i915_vma_is_closed(vma) && + i915_gem_valid_gtt_space(vma, cache_level)) continue; ret = i915_vma_unbind(vma); diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index bf6d8d1eaabe..1013403fcfea 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -466,6 +466,7 @@ i915_vma_insert(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) u64 start, end; int ret; + GEM_BUG_ON(i915_vma_is_closed(vma)); GEM_BUG_ON(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND)); GEM_BUG_ON(drm_mm_node_allocated(&vma->node)); @@ -678,7 +679,9 @@ static void i915_vma_destroy(struct i915_vma *vma) GEM_BUG_ON(i915_gem_active_isset(&vma->last_read[i])); GEM_BUG_ON(i915_gem_active_isset(&vma->last_fence)); + list_del(&vma->obj_link); list_del(&vma->vm_link); + if (!i915_vma_is_ggtt(vma)) i915_ppgtt_put(i915_vm_to_ppgtt(vma->vm)); @@ -690,7 +693,6 @@ void i915_vma_close(struct i915_vma *vma) GEM_BUG_ON(i915_vma_is_closed(vma)); vma->flags |= I915_VMA_CLOSED; - list_del(&vma->obj_link); rb_erase(&vma->obj_node, &vma->obj->vma_tree); if (!i915_vma_is_active(vma) && !i915_vma_is_pinned(vma))
Originally we translated from the object to the vma by walking obj->vma_list to find the matching vm (for user lookups). Now we process user lookups using the rbtree, and we only use obj->vma_list itself for maintaining state (e.g. ensuring that all vma are flushed or rebound). As such maintenance needs to go on beyond the user's awareness of the vma, defer removal of the vma from the obj->vma_list from i915_vma_close() to i915_vma_destroy() Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> --- drivers/gpu/drm/i915/i915_gem.c | 3 ++- drivers/gpu/drm/i915/i915_vma.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-)