From: Rob Clark <robdclark@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
Rob Clark <robdclark@chromium.org>,
"Kristian H . Kristensen" <hoegsberg@google.com>,
Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v4 20/23] drm/msm: Remove msm_gem_free_work
Date: Fri, 23 Oct 2020 09:51:21 -0700 [thread overview]
Message-ID: <20201023165136.561680-21-robdclark@gmail.com> (raw)
In-Reply-To: <20201023165136.561680-1-robdclark@gmail.com>
From: Rob Clark <robdclark@chromium.org>
Now that we don't need struct_mutex in the free path, we can get rid of
the asynchronous free altogether.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
---
drivers/gpu/drm/msm/msm_drv.c | 3 ---
drivers/gpu/drm/msm/msm_drv.h | 5 -----
drivers/gpu/drm/msm/msm_gem.c | 27 ---------------------------
drivers/gpu/drm/msm/msm_gem.h | 1 -
4 files changed, 36 deletions(-)
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 81cb2cecc829..49e6daf30b42 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -438,9 +438,6 @@ static int msm_drm_init(struct device *dev, struct drm_driver *drv)
priv->wq = alloc_ordered_workqueue("msm", 0);
- INIT_WORK(&priv->free_work, msm_gem_free_work);
- init_llist_head(&priv->free_list);
-
INIT_LIST_HEAD(&priv->inactive_list);
mutex_init(&priv->mm_lock);
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 2ef5cff19883..af296712eae8 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -188,10 +188,6 @@ struct msm_drm_private {
struct list_head inactive_list;
struct mutex mm_lock;
- /* worker for delayed free of objects: */
- struct work_struct free_work;
- struct llist_head free_list;
-
struct workqueue_struct *wq;
unsigned int num_planes;
@@ -291,7 +287,6 @@ struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
struct dma_buf_attachment *attach, struct sg_table *sg);
int msm_gem_prime_pin(struct drm_gem_object *obj);
void msm_gem_prime_unpin(struct drm_gem_object *obj);
-void msm_gem_free_work(struct work_struct *work);
int msm_framebuffer_prepare(struct drm_framebuffer *fb,
struct msm_gem_address_space *aspace);
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index 5d555750943e..00b4788366c5 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -939,16 +939,6 @@ void msm_gem_free_object(struct drm_gem_object *obj)
struct drm_device *dev = obj->dev;
struct msm_drm_private *priv = dev->dev_private;
- if (llist_add(&msm_obj->freed, &priv->free_list))
- queue_work(priv->wq, &priv->free_work);
-}
-
-static void free_object(struct msm_gem_object *msm_obj)
-{
- struct drm_gem_object *obj = &msm_obj->base;
- struct drm_device *dev = obj->dev;
- struct msm_drm_private *priv = dev->dev_private;
-
/* object should not be on active list: */
WARN_ON(is_active(msm_obj));
@@ -986,23 +976,6 @@ static void free_object(struct msm_gem_object *msm_obj)
kfree(msm_obj);
}
-void msm_gem_free_work(struct work_struct *work)
-{
- struct msm_drm_private *priv =
- container_of(work, struct msm_drm_private, free_work);
- struct llist_node *freed;
- struct msm_gem_object *msm_obj, *next;
-
- while ((freed = llist_del_all(&priv->free_list))) {
- llist_for_each_entry_safe(msm_obj, next,
- freed, freed)
- free_object(msm_obj);
-
- if (need_resched())
- break;
- }
-}
-
/* convenience method to construct a GEM buffer object, and userspace handle */
int msm_gem_new_handle(struct drm_device *dev, struct drm_file *file,
uint32_t size, uint32_t flags, uint32_t *handle,
diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h
index f4e73c6f07bf..ffa2130ee97d 100644
--- a/drivers/gpu/drm/msm/msm_gem.h
+++ b/drivers/gpu/drm/msm/msm_gem.h
@@ -204,7 +204,6 @@ static inline bool is_vunmapable(struct msm_gem_object *msm_obj)
void msm_gem_purge(struct drm_gem_object *obj);
void msm_gem_vunmap(struct drm_gem_object *obj);
-void msm_gem_free_work(struct work_struct *work);
/* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
* associated with the cmdstream submission for synchronization (and
--
2.26.2
next prev parent reply other threads:[~2020-10-23 16:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-23 16:51 [PATCH v4 00/23] drm/msm: de-struct_mutex-ification Rob Clark
2020-10-23 16:51 ` [PATCH v4 01/23] drm/msm: Fix a couple incorrect usages of get_vaddr_active() Rob Clark
2020-10-23 16:51 ` [PATCH v4 02/23] drm/msm/gem: Add obj->lock wrappers Rob Clark
2020-10-23 16:51 ` [PATCH v4 03/23] drm/msm/gem: Rename internal get_iova_locked helper Rob Clark
2020-10-23 16:51 ` [PATCH v4 04/23] drm/msm/gem: Move prototypes to msm_gem.h Rob Clark
2020-10-23 16:51 ` [PATCH v4 05/23] drm/msm/gem: Add some _locked() helpers Rob Clark
2020-10-23 16:51 ` [PATCH v4 06/23] drm/msm/gem: Move locking in shrinker path Rob Clark
2020-10-23 16:51 ` [PATCH v4 07/23] drm/msm/submit: Move copy_from_user ahead of locking bos Rob Clark
2020-10-23 16:51 ` [PATCH v4 08/23] drm/msm: Do rpm get sooner in the submit path Rob Clark
2020-10-23 16:51 ` [PATCH v4 09/23] drm/msm/gem: Switch over to obj->resv for locking Rob Clark
2020-10-23 16:51 ` [PATCH v4 10/23] drm/msm: Use correct drm_gem_object_put() in fail case Rob Clark
2020-10-23 16:51 ` [PATCH v4 11/23] drm/msm: Drop chatty trace Rob Clark
2020-10-23 16:51 ` [PATCH v4 12/23] drm/msm: Move update_fences() Rob Clark
2020-10-23 16:51 ` [PATCH v4 13/23] drm/msm: Add priv->mm_lock to protect active/inactive lists Rob Clark
2020-10-23 16:51 ` [PATCH v4 14/23] drm/msm: Document and rename preempt_lock Rob Clark
2020-10-23 16:51 ` [PATCH v4 15/23] drm/msm: Protect ring->submits with it's own lock Rob Clark
2020-10-23 16:51 ` [PATCH v4 16/23] drm/msm: Refcount submits Rob Clark
2020-10-23 16:51 ` [PATCH v4 17/23] drm/msm: Remove obj->gpu Rob Clark
2020-10-23 16:51 ` [PATCH v4 18/23] drm/msm: Drop struct_mutex from the retire path Rob Clark
2020-10-23 16:51 ` [PATCH v4 19/23] drm/msm: Drop struct_mutex in free_object() path Rob Clark
2020-10-23 16:51 ` Rob Clark [this message]
2020-10-23 16:51 ` [PATCH v4 21/23] drm/msm: Drop struct_mutex in madvise path Rob Clark
2020-10-23 16:51 ` [PATCH v4 22/23] drm/msm: Drop struct_mutex in shrinker path Rob Clark
2020-10-23 16:51 ` [PATCH v4 23/23] drm/msm: Don't implicit-sync if only a single ring Rob Clark
2020-10-23 18:20 ` Lucas Stach
2020-10-24 3:49 ` Rob Clark
2020-10-26 9:34 ` Daniel Vetter
2020-10-29 16:14 ` Daniel Vetter
2020-10-29 16:59 ` Rob Clark
2020-10-29 18:22 ` Daniel Vetter
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