From de18003328d1dcf845c451945461e55bb8801fd6 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 4 Aug 2016 16:32:29 +0100 Subject: [PATCH] drm/i915: Record allocated vma size Tracking the size of the VMA as allocated allows us to dramatically reduce the complexity of later functions (like inserting the VMA in to the drm_mm range manager). Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1470324762-2545-13-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_gem.c | 103 +++++++++++----------------- drivers/gpu/drm/i915/i915_gem_gtt.c | 67 ++++++------------ drivers/gpu/drm/i915/i915_gem_gtt.h | 5 +- 3 files changed, 63 insertions(+), 112 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index e07c373a8992..646cd0dd15a0 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2980,53 +2980,36 @@ i915_gem_object_insert_into_vm(struct drm_i915_gem_object *obj, u64 alignment, u64 flags) { - struct drm_device *dev = obj->base.dev; - struct drm_i915_private *dev_priv = to_i915(dev); - u64 start, end; - u32 search_flag, alloc_flag; + struct drm_i915_private *dev_priv = to_i915(obj->base.dev); struct i915_vma *vma; + u64 start, end; + u64 min_alignment; int ret; - if (i915_is_ggtt(vm)) { - u32 fence_size, fence_alignment, unfenced_alignment; - u64 view_size; - - if (WARN_ON(!ggtt_view)) - return ERR_PTR(-EINVAL); - - view_size = i915_ggtt_view_size(obj, ggtt_view); - - fence_size = i915_gem_get_ggtt_size(dev_priv, - view_size, - obj->tiling_mode); - fence_alignment = i915_gem_get_ggtt_alignment(dev_priv, - view_size, - obj->tiling_mode, - true); - unfenced_alignment = i915_gem_get_ggtt_alignment(dev_priv, - view_size, - obj->tiling_mode, - false); - size = max(size, view_size); - if (flags & PIN_MAPPABLE) - size = max_t(u64, size, fence_size); - - if (alignment == 0) - alignment = flags & PIN_MAPPABLE ? fence_alignment : - unfenced_alignment; - if (flags & PIN_MAPPABLE && alignment & (fence_alignment - 1)) { - DRM_DEBUG("Invalid object (view type=%u) alignment requested %llx\n", - ggtt_view ? ggtt_view->type : 0, - alignment); - return ERR_PTR(-EINVAL); - } - } else { - size = max_t(u64, size, obj->base.size); - alignment = 4096; + 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)) + return vma; + + size = max(size, vma->size); + if (flags & PIN_MAPPABLE) + size = i915_gem_get_ggtt_size(dev_priv, size, obj->tiling_mode); + + min_alignment = + i915_gem_get_ggtt_alignment(dev_priv, size, obj->tiling_mode, + flags & PIN_MAPPABLE); + if (alignment == 0) + alignment = min_alignment; + if (alignment & (min_alignment - 1)) { + DRM_DEBUG("Invalid object alignment requested %llu, minimum %llu\n", + alignment, min_alignment); + return ERR_PTR(-EINVAL); } start = flags & PIN_OFFSET_BIAS ? flags & PIN_OFFSET_MASK : 0; - end = vm->total; + + end = vma->vm->total; if (flags & PIN_MAPPABLE) end = min_t(u64, end, dev_priv->ggtt.mappable_end); if (flags & PIN_ZONE_4G) @@ -3037,8 +3020,7 @@ i915_gem_object_insert_into_vm(struct drm_i915_gem_object *obj, * attempt to find space. */ if (size > end) { - DRM_DEBUG("Attempting to bind an object (view type=%u) larger than the aperture: request=%llu [object=%zd] > %s aperture=%llu\n", - ggtt_view ? ggtt_view->type : 0, + DRM_DEBUG("Attempting to bind an object larger than the aperture: request=%llu [object=%zd] > %s aperture=%llu\n", size, obj->base.size, flags & PIN_MAPPABLE ? "mappable" : "total", end); @@ -3051,31 +3033,27 @@ i915_gem_object_insert_into_vm(struct drm_i915_gem_object *obj, i915_gem_object_pin_pages(obj); - 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; - if (flags & PIN_OFFSET_FIXED) { uint64_t offset = flags & PIN_OFFSET_MASK; - - if (offset & (alignment - 1) || offset + size > end) { + if (offset & (alignment - 1) || offset > end - size) { ret = -EINVAL; - goto err_vma; + goto err_unpin; } + vma->node.start = offset; vma->node.size = size; vma->node.color = obj->cache_level; - ret = drm_mm_reserve_node(&vm->mm, &vma->node); + ret = drm_mm_reserve_node(&vma->vm->mm, &vma->node); if (ret) { ret = i915_gem_evict_for_vma(vma); if (ret == 0) - ret = drm_mm_reserve_node(&vm->mm, &vma->node); + ret = drm_mm_reserve_node(&vma->vm->mm, &vma->node); + if (ret) + goto err_unpin; } - if (ret) - goto err_vma; } else { + u32 search_flag, alloc_flag; + if (flags & PIN_HIGH) { search_flag = DRM_MM_SEARCH_BELOW; alloc_flag = DRM_MM_CREATE_TOP; @@ -3094,36 +3072,35 @@ i915_gem_object_insert_into_vm(struct drm_i915_gem_object *obj, alignment = 0; search_free: - ret = drm_mm_insert_node_in_range_generic(&vm->mm, &vma->node, + ret = drm_mm_insert_node_in_range_generic(&vma->vm->mm, + &vma->node, size, alignment, obj->cache_level, start, end, search_flag, alloc_flag); if (ret) { - ret = i915_gem_evict_something(vm, size, alignment, + ret = i915_gem_evict_something(vma->vm, size, alignment, obj->cache_level, start, end, flags); if (ret == 0) goto search_free; - goto err_vma; + goto err_unpin; } } GEM_BUG_ON(!i915_gem_valid_gtt_space(vma, obj->cache_level)); list_move_tail(&obj->global_list, &dev_priv->mm.bound_list); - list_move_tail(&vma->vm_link, &vm->inactive_list); + list_move_tail(&vma->vm_link, &vma->vm->inactive_list); obj->bind_count++; return vma; -err_vma: - vma = ERR_PTR(ret); err_unpin: i915_gem_object_unpin_pages(obj); - return vma; + return ERR_PTR(ret); } bool diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index f1f14e5a5a99..b8c1e9d4fac8 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -184,7 +184,7 @@ static void ppgtt_unbind_vma(struct i915_vma *vma) { vma->vm->clear_range(vma->vm, vma->node.start, - vma->obj->base.size, + vma->size, true); } @@ -2695,28 +2695,18 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma, static void ggtt_unbind_vma(struct i915_vma *vma) { - struct drm_device *dev = vma->vm->dev; - struct drm_i915_private *dev_priv = to_i915(dev); - struct drm_i915_gem_object *obj = vma->obj; - const uint64_t size = min_t(uint64_t, - obj->base.size, - vma->node.size); + struct i915_hw_ppgtt *appgtt = to_i915(vma->vm->dev)->mm.aliasing_ppgtt; + const u64 size = min(vma->size, vma->node.size); - if (vma->bound & GLOBAL_BIND) { + if (vma->bound & GLOBAL_BIND) vma->vm->clear_range(vma->vm, - vma->node.start, - size, + vma->node.start, size, true); - } - - if (dev_priv->mm.aliasing_ppgtt && vma->bound & LOCAL_BIND) { - struct i915_hw_ppgtt *appgtt = dev_priv->mm.aliasing_ppgtt; + if (vma->bound & LOCAL_BIND && appgtt) appgtt->base.clear_range(&appgtt->base, - vma->node.start, - size, + vma->node.start, size, true); - } } void i915_gem_gtt_finish_object(struct drm_i915_gem_object *obj) @@ -3374,14 +3364,14 @@ void i915_vma_close(struct i915_vma *vma) 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) + const struct i915_ggtt_view *view) { struct i915_vma *vma; int i; GEM_BUG_ON(vm->closed); - if (WARN_ON(i915_is_ggtt(vm) != !!ggtt_view)) + if (WARN_ON(i915_is_ggtt(vm) != !!view)) return ERR_PTR(-EINVAL); vma = kmem_cache_zalloc(to_i915(obj->base.dev)->vmas, GFP_KERNEL); @@ -3395,12 +3385,22 @@ __i915_gem_vma_create(struct drm_i915_gem_object *obj, list_add(&vma->vm_link, &vm->unbound_list); vma->vm = vm; vma->obj = obj; + vma->size = obj->base.size; vma->is_ggtt = i915_is_ggtt(vm); - if (i915_is_ggtt(vm)) - vma->ggtt_view = *ggtt_view; - else + if (i915_is_ggtt(vm)) { + vma->ggtt_view = *view; + if (view->type == I915_GGTT_VIEW_PARTIAL) { + vma->size = view->params.partial.size; + vma->size <<= PAGE_SHIFT; + } else if (view->type == I915_GGTT_VIEW_ROTATED) { + vma->size = + intel_rotation_info_size(&view->params.rotated); + vma->size <<= PAGE_SHIFT; + } + } else { i915_ppgtt_get(i915_vm_to_ppgtt(vm)); + } list_add_tail(&vma->obj_link, &obj->vma_list); @@ -3685,29 +3685,6 @@ int i915_vma_bind(struct i915_vma *vma, enum i915_cache_level cache_level, return 0; } -/** - * i915_ggtt_view_size - Get the size of a GGTT view. - * @obj: Object the view is of. - * @view: The view in question. - * - * @return The size of the GGTT view in bytes. - */ -size_t -i915_ggtt_view_size(struct drm_i915_gem_object *obj, - const struct i915_ggtt_view *view) -{ - if (view->type == I915_GGTT_VIEW_NORMAL) { - return obj->base.size; - } else if (view->type == I915_GGTT_VIEW_ROTATED) { - return intel_rotation_info_size(&view->params.rotated) << PAGE_SHIFT; - } else if (view->type == I915_GGTT_VIEW_PARTIAL) { - return view->params.partial.size << PAGE_SHIFT; - } else { - WARN_ONCE(1, "GGTT view %u not implemented!\n", view->type); - return obj->base.size; - } -} - void __iomem *i915_vma_pin_iomap(struct i915_vma *vma) { void __iomem *ptr; diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index f6cc3fe8e1ad..2c0360c1ab97 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -180,6 +180,7 @@ struct i915_vma { struct drm_i915_gem_object *obj; struct i915_address_space *vm; void __iomem *iomap; + u64 size; unsigned int active; struct i915_gem_active last_read[I915_NUM_ENGINES]; @@ -608,10 +609,6 @@ i915_ggtt_view_equal(const struct i915_ggtt_view *a, return true; } -size_t -i915_ggtt_view_size(struct drm_i915_gem_object *obj, - const struct i915_ggtt_view *view); - /** * i915_vma_pin_iomap - calls ioremap_wc to map the GGTT VMA via the aperture * @vma: VMA to iomap -- 2.20.1