diff options
| -rw-r--r-- | drivers/gpu/drm/msm/mdp4/mdp4_crtc.c | 11 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_drv.h | 21 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 35 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.h | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gpu.c | 4 |
6 files changed, 71 insertions, 33 deletions
diff --git a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c index 5a68aab66fa..1d52896dfa8 100644 --- a/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/mdp4/mdp4_crtc.c @@ -51,7 +51,7 @@ struct mdp4_crtc { /* if there is a pending flip, these will be non-null: */ struct drm_pending_vblank_event *event; - struct work_struct pageflip_work; + struct msm_fence_cb pageflip_cb; /* the fb that we currently hold a scanout ref to: */ struct drm_framebuffer *fb; @@ -132,10 +132,10 @@ static void crtc_flush(struct drm_crtc *crtc) mdp4_write(mdp4_kms, REG_MDP4_OVERLAY_FLUSH, flush); } -static void pageflip_worker(struct work_struct *work) +static void pageflip_cb(struct msm_fence_cb *cb) { struct mdp4_crtc *mdp4_crtc = - container_of(work, struct mdp4_crtc, pageflip_work); + container_of(cb, struct mdp4_crtc, pageflip_cb); struct drm_crtc *crtc = &mdp4_crtc->base; mdp4_plane_set_scanout(mdp4_crtc->plane, crtc->fb); @@ -397,8 +397,7 @@ static int mdp4_crtc_page_flip(struct drm_crtc *crtc, mdp4_crtc->event = event; update_fb(crtc, true, new_fb); - return msm_gem_queue_inactive_work(obj, - &mdp4_crtc->pageflip_work); + return msm_gem_queue_inactive_cb(obj, &mdp4_crtc->pageflip_cb); } static int mdp4_crtc_set_property(struct drm_crtc *crtc, @@ -702,7 +701,7 @@ struct drm_crtc *mdp4_crtc_init(struct drm_device *dev, ret = drm_flip_work_init(&mdp4_crtc->unref_cursor_work, 64, "unref cursor", unref_cursor_worker); - INIT_WORK(&mdp4_crtc->pageflip_work, pageflip_worker); + INIT_FENCE_CB(&mdp4_crtc->pageflip_cb, pageflip_cb); drm_crtc_init(dev, crtc, &mdp4_crtc_funcs); drm_crtc_helper_add(crtc, &mdp4_crtc_helper_funcs); diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index e7ac95a3872..86537692e45 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -187,6 +187,7 @@ static int msm_load(struct drm_device *dev, unsigned long flags) init_waitqueue_head(&priv->fence_event); INIT_LIST_HEAD(&priv->inactive_list); + INIT_LIST_HEAD(&priv->fence_cbs); drm_mode_config_init(dev); @@ -539,15 +540,36 @@ int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence, return ret; } -/* call under struct_mutex */ +/* called from workqueue */ void msm_update_fence(struct drm_device *dev, uint32_t fence) { struct msm_drm_private *priv = dev->dev_private; - if (fence > priv->completed_fence) { - priv->completed_fence = fence; - wake_up_all(&priv->fence_event); + mutex_lock(&dev->struct_mutex); + priv->completed_fence = max(fence, priv->completed_fence); + + while (!list_empty(&priv->fence_cbs)) { + struct msm_fence_cb *cb; + + cb = list_first_entry(&priv->fence_cbs, + struct msm_fence_cb, work.entry); + + if (cb->fence > priv->completed_fence) + break; + + list_del_init(&cb->work.entry); + queue_work(priv->wq, &cb->work); } + + mutex_unlock(&dev->struct_mutex); + + wake_up_all(&priv->fence_event); +} + +void __msm_fence_worker(struct work_struct *work) +{ + struct msm_fence_cb *cb = container_of(work, struct msm_fence_cb, work); + cb->func(cb); } /* diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 2c6bad5905e..d39f0862b19 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -73,6 +73,9 @@ struct msm_drm_private { struct workqueue_struct *wq; + /* callbacks deferred until bo is inactive: */ + struct list_head fence_cbs; + /* registered IOMMU domains: */ unsigned int num_iommus; struct iommu_domain *iommus[NUM_DOMAINS]; @@ -97,6 +100,20 @@ struct msm_format { uint32_t pixel_format; }; +/* callback from wq once fence has passed: */ +struct msm_fence_cb { + struct work_struct work; + uint32_t fence; + void (*func)(struct msm_fence_cb *cb); +}; + +void __msm_fence_worker(struct work_struct *work); + +#define INIT_FENCE_CB(_cb, _func) do { \ + INIT_WORK(&(_cb)->work, __msm_fence_worker); \ + (_cb)->func = _func; \ + } while (0) + /* As there are different display controller blocks depending on the * snapdragon version, the kms support is split out and the appropriate * implementation is loaded at runtime. The kms module is responsible @@ -160,8 +177,8 @@ int msm_gem_prime_pin(struct drm_gem_object *obj); void msm_gem_prime_unpin(struct drm_gem_object *obj); void *msm_gem_vaddr_locked(struct drm_gem_object *obj); void *msm_gem_vaddr(struct drm_gem_object *obj); -int msm_gem_queue_inactive_work(struct drm_gem_object *obj, - struct work_struct *work); +int msm_gem_queue_inactive_cb(struct drm_gem_object *obj, + struct msm_fence_cb *cb); void msm_gem_move_to_active(struct drm_gem_object *obj, struct msm_gpu *gpu, bool write, uint32_t fence); void msm_gem_move_to_inactive(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index ea2c96f9459..291939de299 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -309,7 +309,17 @@ int msm_gem_get_iova_locked(struct drm_gem_object *obj, int id, int msm_gem_get_iova(struct drm_gem_object *obj, int id, uint32_t *iova) { + struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret; + + /* this is safe right now because we don't unmap until the + * bo is deleted: + */ + if (msm_obj->domain[id].iova) { + *iova = msm_obj->domain[id].iova; + return 0; + } + mutex_lock(&obj->dev->struct_mutex); ret = msm_gem_get_iova_locked(obj, id, iova); mutex_unlock(&obj->dev->struct_mutex); @@ -379,8 +389,11 @@ void *msm_gem_vaddr(struct drm_gem_object *obj) return ret; } -int msm_gem_queue_inactive_work(struct drm_gem_object *obj, - struct work_struct *work) +/* setup callback for when bo is no longer busy.. + * TODO probably want to differentiate read vs write.. + */ +int msm_gem_queue_inactive_cb(struct drm_gem_object *obj, + struct msm_fence_cb *cb) { struct drm_device *dev = obj->dev; struct msm_drm_private *priv = dev->dev_private; @@ -388,12 +401,13 @@ int msm_gem_queue_inactive_work(struct drm_gem_object *obj, int ret = 0; mutex_lock(&dev->struct_mutex); - if (!list_empty(&work->entry)) { + if (!list_empty(&cb->work.entry)) { ret = -EINVAL; } else if (is_active(msm_obj)) { - list_add_tail(&work->entry, &msm_obj->inactive_work); + cb->fence = max(msm_obj->read_fence, msm_obj->write_fence); + list_add_tail(&cb->work.entry, &priv->fence_cbs); } else { - queue_work(priv->wq, work); + queue_work(priv->wq, &cb->work); } mutex_unlock(&dev->struct_mutex); @@ -426,16 +440,6 @@ void msm_gem_move_to_inactive(struct drm_gem_object *obj) msm_obj->write_fence = 0; list_del_init(&msm_obj->mm_list); list_add_tail(&msm_obj->mm_list, &priv->inactive_list); - - while (!list_empty(&msm_obj->inactive_work)) { - struct work_struct *work; - - work = list_first_entry(&msm_obj->inactive_work, - struct work_struct, entry); - - list_del_init(&work->entry); - queue_work(priv->wq, work); - } } int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, @@ -604,7 +608,6 @@ static int msm_gem_new_impl(struct drm_device *dev, reservation_object_init(msm_obj->resv); INIT_LIST_HEAD(&msm_obj->submit_entry); - INIT_LIST_HEAD(&msm_obj->inactive_work); list_add_tail(&msm_obj->mm_list, &priv->inactive_list); *obj = &msm_obj->base; diff --git a/drivers/gpu/drm/msm/msm_gem.h b/drivers/gpu/drm/msm/msm_gem.h index 0676f32e2c6..f4f23a578d9 100644 --- a/drivers/gpu/drm/msm/msm_gem.h +++ b/drivers/gpu/drm/msm/msm_gem.h @@ -45,9 +45,6 @@ struct msm_gem_object { */ struct list_head submit_entry; - /* work defered until bo is inactive: */ - struct list_head inactive_work; - struct page **pages; struct sg_table *sgt; void *vaddr; diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c index 3bab937965d..4583d61556f 100644 --- a/drivers/gpu/drm/msm/msm_gpu.c +++ b/drivers/gpu/drm/msm/msm_gpu.c @@ -268,6 +268,8 @@ static void retire_worker(struct work_struct *work) struct drm_device *dev = gpu->dev; uint32_t fence = gpu->funcs->last_fence(gpu); + msm_update_fence(gpu->dev, fence); + mutex_lock(&dev->struct_mutex); while (!list_empty(&gpu->active_list)) { @@ -287,8 +289,6 @@ static void retire_worker(struct work_struct *work) } } - msm_update_fence(gpu->dev, fence); - mutex_unlock(&dev->struct_mutex); } |