From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH 08/11] drm/i915: mm_list is per VMA Date: Tue, 9 Jul 2013 09:18:46 +0200 Message-ID: <20130709071846.GS18285@phenom.ffwll.local> References: <1373350122-5118-1-git-send-email-ben@bwidawsk.net> <1373350122-5118-9-git-send-email-ben@bwidawsk.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ea0-f176.google.com (mail-ea0-f176.google.com [209.85.215.176]) by gabe.freedesktop.org (Postfix) with ESMTP id 773F2E5D78 for ; Tue, 9 Jul 2013 00:18:45 -0700 (PDT) Received: by mail-ea0-f176.google.com with SMTP id z15so3408236ead.7 for ; Tue, 09 Jul 2013 00:18:44 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1373350122-5118-9-git-send-email-ben@bwidawsk.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Ben Widawsky Cc: Intel GFX List-Id: intel-gfx@lists.freedesktop.org On Mon, Jul 08, 2013 at 11:08:39PM -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. > > v2: only bump GGTT LRU in i915_gem_object_set_to_gtt_domain (Chris) > > v3: Moved earlier in the series > > Signed-off-by: Ben Widawsky The commit message seems to miss the explanation (that I've written for you) why we move only some of the dev_priv->mm lrus, not all of them ... > --- > drivers/gpu/drm/i915/i915_debugfs.c | 53 ++++++++++++++++++++++------------ > drivers/gpu/drm/i915/i915_drv.h | 5 ++-- > drivers/gpu/drm/i915/i915_gem.c | 34 ++++++++++++++-------- > drivers/gpu/drm/i915/i915_gem_evict.c | 14 ++++----- > drivers/gpu/drm/i915/i915_gem_stolen.c | 2 +- > drivers/gpu/drm/i915/i915_irq.c | 37 ++++++++++++++---------- > 6 files changed, 87 insertions(+), 58 deletions(-) > > diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c > index 867ed07..163ca6b 100644 > --- a/drivers/gpu/drm/i915/i915_debugfs.c > +++ b/drivers/gpu/drm/i915/i915_debugfs.c > @@ -157,7 +157,7 @@ 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; > > @@ -165,6 +165,7 @@ 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"); > @@ -180,12 +181,12 @@ 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); > count++; > } > mutex_unlock(&dev->struct_mutex); > @@ -233,7 +234,18 @@ 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; > @@ -243,6 +255,7 @@ 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); > @@ -259,12 +272,12 @@ 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); > > @@ -2037,7 +2050,8 @@ 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); > @@ -2058,14 +2072,15 @@ 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_unbind(obj, &dev_priv->gtt.base); > - 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) > + if (vma->obj->pin_count == 0) { > + ret = i915_gem_object_unbind(vma->obj, > + vm); > + if (ret) > + goto unlock; > + } > } > } > > diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h > index 48baccc..48105f8 100644 > --- a/drivers/gpu/drm/i915/i915_drv.h > +++ b/drivers/gpu/drm/i915/i915_drv.h > @@ -541,6 +541,9 @@ 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 */ > }; > > @@ -1242,9 +1245,7 @@ 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 501c590..9a58363 100644 > --- a/drivers/gpu/drm/i915/i915_gem.c > +++ b/drivers/gpu/drm/i915/i915_gem.c > @@ -1888,6 +1888,7 @@ 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; > u32 seqno = intel_ring_get_seqno(ring); > + struct i915_vma *vma; > > BUG_ON(ring == NULL); > obj->ring = ring; > @@ -1899,7 +1900,8 @@ i915_gem_object_move_to_active(struct drm_i915_gem_object *obj, > } > > /* Move from whatever list we were on to the tail of execution. */ > - list_move_tail(&obj->mm_list, &vm->active_list); > + vma = i915_gem_obj_to_vma(obj, vm); > + list_move_tail(&vma->mm_list, &vm->active_list); > list_move_tail(&obj->ring_list, &ring->active_list); > > obj->last_read_seqno = seqno; > @@ -1922,10 +1924,13 @@ static void > i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj, > struct i915_address_space *vm) > { > + struct i915_vma *vma; > + > BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS); > BUG_ON(!obj->active); > > - list_move_tail(&obj->mm_list, &vm->inactive_list); > + vma = i915_gem_obj_to_vma(obj, vm); > + list_move_tail(&vma->mm_list, &vm->inactive_list); > > list_del_init(&obj->ring_list); > obj->ring = NULL; > @@ -2287,9 +2292,9 @@ 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) > @@ -2299,8 +2304,8 @@ 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); > } > @@ -2644,12 +2649,12 @@ i915_gem_object_unbind(struct drm_i915_gem_object *obj, > 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(vm)) > obj->map_and_fenceable = true; > > vma = i915_gem_obj_to_vma(obj, vm); > + list_del(&vma->mm_list); > list_del(&vma->vma_link); > drm_mm_remove_node(&vma->node); > i915_gem_vma_destroy(vma); > @@ -3197,7 +3202,7 @@ search_free: > } > > 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)) > @@ -3354,9 +3359,14 @@ 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; > } > @@ -3931,7 +3941,6 @@ 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); > @@ -4071,6 +4080,7 @@ 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; > > diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c > index 32efdc0..18a44a9 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_gem_object_unbind(obj, vm)); > + list_for_each_entry_safe(vma, next, &vm->inactive_list, mm_list) > + if (vma->obj->pin_count == 0) > + WARN_ON(i915_gem_object_unbind(vma->obj, vm)); > } > > return 0; > diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c > index bfe61fa..58b2613 100644 > --- a/drivers/gpu/drm/i915/i915_gem_stolen.c > +++ b/drivers/gpu/drm/i915/i915_gem_stolen.c > @@ -415,7 +415,7 @@ 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, &vm->inactive_list); > + list_add_tail(&vma->mm_list, &dev_priv->gtt.base.inactive_list); > > return obj; > > diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c > index 28fa0ff..e065232 100644 > --- a/drivers/gpu/drm/i915/i915_irq.c > +++ b/drivers/gpu/drm/i915/i915_irq.c > @@ -1640,11 +1640,11 @@ 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; > } > @@ -1706,8 +1706,9 @@ 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; > + struct i915_vma *vma; > struct drm_i915_gem_object *obj; > - struct i915_address_space *vm = &dev_priv->gtt.base; > u32 seqno; > > if (!ring->get_seqno) > @@ -1729,20 +1730,23 @@ 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) { > + 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; > @@ -1863,11 +1867,12 @@ static void i915_gem_capture_buffers(struct drm_i915_private *dev_priv, > struct drm_i915_error_state *error) > { > struct drm_i915_gem_object *obj; > + struct i915_vma *vma; > struct i915_address_space *vm = &dev_priv->gtt.base; > 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) > -- > 1.8.3.2 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch