diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object.c | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_object_types.h | 12 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drm_client.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drm_client.h | 32 |
4 files changed, 90 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object.c b/drivers/gpu/drm/i915/gem/i915_gem_object.c index c26d87555825..25eeeb863209 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_object.c @@ -106,6 +106,10 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj, INIT_LIST_HEAD(&obj->mm.link); +#ifdef CONFIG_PROC_FS + INIT_LIST_HEAD(&obj->client_link); +#endif + INIT_LIST_HEAD(&obj->lut_list); spin_lock_init(&obj->lut_lock); @@ -293,6 +297,10 @@ void __i915_gem_free_object_rcu(struct rcu_head *head) container_of(head, typeof(*obj), rcu); struct drm_i915_private *i915 = to_i915(obj->base.dev); + /* We need to keep this alive for RCU read access from fdinfo. */ + if (obj->mm.n_placements > 1) + kfree(obj->mm.placements); + i915_gem_object_free(obj); GEM_BUG_ON(!atomic_read(&i915->mm.free_count)); @@ -389,9 +397,6 @@ void __i915_gem_free_object(struct drm_i915_gem_object *obj) if (obj->ops->release) obj->ops->release(obj); - if (obj->mm.n_placements > 1) - kfree(obj->mm.placements); - if (obj->shares_resv_from) i915_vm_resv_put(obj->shares_resv_from); @@ -442,6 +447,8 @@ static void i915_gem_free_object(struct drm_gem_object *gem_obj) GEM_BUG_ON(i915_gem_object_is_framebuffer(obj)); + i915_drm_client_remove_object(obj); + /* * Before we free the object, make sure any pure RCU-only * read-side critical sections are complete, e.g. diff --git a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h index 2292404007c8..0c5cdab278b6 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_object_types.h +++ b/drivers/gpu/drm/i915/gem/i915_gem_object_types.h @@ -302,6 +302,18 @@ struct drm_i915_gem_object { */ struct i915_address_space *shares_resv_from; +#ifdef CONFIG_PROC_FS + /** + * @client: @i915_drm_client which created the object + */ + struct i915_drm_client *client; + + /** + * @client_link: Link into @i915_drm_client.objects_list + */ + struct list_head client_link; +#endif + union { struct rcu_head rcu; struct llist_node freed; diff --git a/drivers/gpu/drm/i915/i915_drm_client.c b/drivers/gpu/drm/i915/i915_drm_client.c index 2a44b3876cb5..2e5e69edc0f9 100644 --- a/drivers/gpu/drm/i915/i915_drm_client.c +++ b/drivers/gpu/drm/i915/i915_drm_client.c @@ -28,6 +28,10 @@ struct i915_drm_client *i915_drm_client_alloc(void) kref_init(&client->kref); spin_lock_init(&client->ctx_lock); INIT_LIST_HEAD(&client->ctx_list); +#ifdef CONFIG_PROC_FS + spin_lock_init(&client->objects_lock); + INIT_LIST_HEAD(&client->objects_list); +#endif return client; } @@ -108,4 +112,36 @@ void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file) for (i = 0; i < ARRAY_SIZE(uabi_class_names); i++) show_client_class(p, i915, file_priv->client, i); } + +void i915_drm_client_add_object(struct i915_drm_client *client, + struct drm_i915_gem_object *obj) +{ + unsigned long flags; + + GEM_WARN_ON(obj->client); + GEM_WARN_ON(!list_empty(&obj->client_link)); + + spin_lock_irqsave(&client->objects_lock, flags); + obj->client = i915_drm_client_get(client); + list_add_tail_rcu(&obj->client_link, &client->objects_list); + spin_unlock_irqrestore(&client->objects_lock, flags); +} + +bool i915_drm_client_remove_object(struct drm_i915_gem_object *obj) +{ + struct i915_drm_client *client = fetch_and_zero(&obj->client); + unsigned long flags; + + /* Object may not be associated with a client. */ + if (!client) + return false; + + spin_lock_irqsave(&client->objects_lock, flags); + list_del_rcu(&obj->client_link); + spin_unlock_irqrestore(&client->objects_lock, flags); + + i915_drm_client_put(client); + + return true; +} #endif diff --git a/drivers/gpu/drm/i915/i915_drm_client.h b/drivers/gpu/drm/i915/i915_drm_client.h index 67816c912bca..5f58fdf7dcb8 100644 --- a/drivers/gpu/drm/i915/i915_drm_client.h +++ b/drivers/gpu/drm/i915/i915_drm_client.h @@ -12,6 +12,9 @@ #include <uapi/drm/i915_drm.h> +#include "i915_file_private.h" +#include "gem/i915_gem_object_types.h" + #define I915_LAST_UABI_ENGINE_CLASS I915_ENGINE_CLASS_COMPUTE struct drm_file; @@ -25,6 +28,20 @@ struct i915_drm_client { spinlock_t ctx_lock; /* For add/remove from ctx_list. */ struct list_head ctx_list; /* List of contexts belonging to client. */ +#ifdef CONFIG_PROC_FS + /** + * @objects_lock: lock protecting @objects_list + */ + spinlock_t objects_lock; + + /** + * @objects_list: list of objects created by this client + * + * Protected by @objects_lock. + */ + struct list_head objects_list; +#endif + /** * @past_runtime: Accumulation of pphwsp runtimes from closed contexts. */ @@ -49,4 +66,19 @@ struct i915_drm_client *i915_drm_client_alloc(void); void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file); +#ifdef CONFIG_PROC_FS +void i915_drm_client_add_object(struct i915_drm_client *client, + struct drm_i915_gem_object *obj); +bool i915_drm_client_remove_object(struct drm_i915_gem_object *obj); +#else +static inline void i915_drm_client_add_object(struct i915_drm_client *client, + struct drm_i915_gem_object *obj) +{ +} + +static inline bool i915_drm_client_remove_object(struct drm_i915_gem_object *obj) +{ +} +#endif + #endif /* !__I915_DRM_CLIENT_H__ */ |