From: Daniel Vetter Date: Wed, 26 Oct 2011 20:28:07 +0000 (+0200) Subject: drm/sman: rip out owner tracking X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=763240deb423c477b4d46c23e0b582099d4b8753;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/sman: rip out owner tracking In contrast to kms drivers, sis/via _always_ associated a buffer with a drm fd. So by the time we reach lastclose, all open drm fds are gone and with them their associated objects. So when sis/via call drm_sman_cleanup in their lastclose funcs, that will free 0 objects. The owner tracking now serves no purpose at all, hence rip it ou. We can't kill the corresponding fields in struct drm_memblock_item yet because we hijack these in the new driver private owner tracking. But now that drm_sman.c doesn't touch ->owner_list anymore, we need to kill the list_move hack and properly add the item to the file_priv list. Also leave the list_del(&obj->owner_list) in drm_sman_free for the moment, it will move to the drivers when sman disappears completely. v2: Remove the redundant INIT_LIST_HEAD as noted by Chris Wilson Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/drm_sman.c b/drivers/gpu/drm/drm_sman.c index 9d03cdc1a914..af4728477a90 100644 --- a/drivers/gpu/drm/drm_sman.c +++ b/drivers/gpu/drm/drm_sman.c @@ -48,7 +48,6 @@ struct drm_owner_item { void drm_sman_takedown(struct drm_sman * sman) { drm_ht_remove(&sman->user_hash_tab); - drm_ht_remove(&sman->owner_hash_tab); kfree(sman->mm); } @@ -66,16 +65,10 @@ drm_sman_init(struct drm_sman * sman, unsigned int num_managers, goto out; } sman->num_managers = num_managers; - INIT_LIST_HEAD(&sman->owner_items); - ret = drm_ht_create(&sman->owner_hash_tab, owner_order); - if (ret) - goto out1; ret = drm_ht_create(&sman->user_hash_tab, user_order); if (!ret) goto out; - drm_ht_remove(&sman->owner_hash_tab); -out1: kfree(sman->mm); out: return ret; @@ -161,44 +154,12 @@ drm_sman_set_manager(struct drm_sman * sman, unsigned int manager, } EXPORT_SYMBOL(drm_sman_set_manager); -static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman, - unsigned long owner) -{ - int ret; - struct drm_hash_item *owner_hash_item; - struct drm_owner_item *owner_item; - - ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item); - if (!ret) { - return drm_hash_entry(owner_hash_item, struct drm_owner_item, - owner_hash); - } - - owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL); - if (!owner_item) - goto out; - - INIT_LIST_HEAD(&owner_item->mem_blocks); - owner_item->owner_hash.key = owner; - if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash)) - goto out1; - - list_add_tail(&owner_item->sman_list, &sman->owner_items); - return owner_item; - -out1: - kfree(owner_item); -out: - return NULL; -} - struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager, unsigned long size, unsigned alignment, unsigned long owner) { void *tmp; struct drm_sman_mm *sman_mm; - struct drm_owner_item *owner_item; struct drm_memblock_item *memblock; BUG_ON(manager >= sman->num_managers); @@ -224,16 +185,8 @@ struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int man (unsigned long)memblock, 32, 0, 0)) goto out1; - owner_item = drm_sman_get_owner_item(sman, owner); - if (!owner_item) - goto out2; - - list_add_tail(&memblock->owner_list, &owner_item->mem_blocks); - return memblock; -out2: - drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash); out1: kfree(memblock); out: @@ -271,35 +224,11 @@ int drm_sman_free_key(struct drm_sman *sman, unsigned int key) EXPORT_SYMBOL(drm_sman_free_key); -static void drm_sman_remove_owner(struct drm_sman *sman, - struct drm_owner_item *owner_item) -{ - list_del(&owner_item->sman_list); - drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash); - kfree(owner_item); -} - -static void drm_sman_do_owner_cleanup(struct drm_sman *sman, - struct drm_owner_item *owner_item) -{ - struct drm_memblock_item *entry, *next; - - list_for_each_entry_safe(entry, next, &owner_item->mem_blocks, - owner_list) { - drm_sman_free(entry); - } - drm_sman_remove_owner(sman, owner_item); -} - void drm_sman_cleanup(struct drm_sman *sman) { - struct drm_owner_item *entry, *next; unsigned int i; struct drm_sman_mm *sman_mm; - list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) { - drm_sman_do_owner_cleanup(sman, entry); - } if (sman->mm) { for (i = 0; i < sman->num_managers; ++i) { sman_mm = &sman->mm[i]; diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c index a70b1bbff2e6..c76a118812a9 100644 --- a/drivers/gpu/drm/sis/sis_mm.c +++ b/drivers/gpu/drm/sis/sis_mm.c @@ -143,7 +143,7 @@ static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file, item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0, 0); if (item) { - list_move(&item->owner_list, &file_priv->obj_list); + list_add(&item->owner_list, &file_priv->obj_list); mem->offset = ((pool == 0) ? dev_priv->vram_offset : dev_priv->agp_offset) + (item->mm-> diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c index 19bb77cdeb46..e0110bc27606 100644 --- a/drivers/gpu/drm/via/via_mm.c +++ b/drivers/gpu/drm/via/via_mm.c @@ -141,7 +141,7 @@ int via_mem_alloc(struct drm_device *dev, void *data, item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0, 0); if (item) { - list_move(&item->owner_list, &file_priv->obj_list); + list_add(&item->owner_list, &file_priv->obj_list); mem->offset = ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_offset : dev_priv->agp_offset) + (item->mm-> diff --git a/include/drm/drm_sman.h b/include/drm/drm_sman.h index d5ed903867e3..34ae5ca05a40 100644 --- a/include/drm/drm_sman.h +++ b/include/drm/drm_sman.h @@ -87,9 +87,7 @@ struct drm_memblock_item { struct drm_sman { struct drm_sman_mm *mm; int num_managers; - struct drm_open_hash owner_hash_tab; struct drm_open_hash user_hash_tab; - struct list_head owner_items; }; /*