From a7790d78092e5904beb4de71e1ea43b260d2092a Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 17 Nov 2017 17:43:37 +0100 Subject: [PATCH] drm/etnaviv: move workqueue to be per GPU While the etnaviv workqueue needs to be ordered, as we rely on work items being executed in queuing order, this is only true for a single GPU. Having a shared workqueue for all GPUs in the system limits concurrency artificially. Getting each GPU its own ordered workqueue still meets our ordering expectations and enables retire workers to run concurrently. Signed-off-by: Lucas Stach Reviewed-by: Philipp Zabel --- drivers/gpu/drm/etnaviv/etnaviv_drv.c | 12 ------------ drivers/gpu/drm/etnaviv/etnaviv_drv.h | 10 ---------- drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 19 +++++++++++++++---- drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 1 + 4 files changed, 16 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 491eddf9b150..ca03b5e4789b 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -580,12 +580,6 @@ static int etnaviv_bind(struct device *dev) } drm->dev_private = priv; - priv->wq = alloc_ordered_workqueue("etnaviv", 0); - if (!priv->wq) { - ret = -ENOMEM; - goto out_wq; - } - mutex_init(&priv->gem_lock); INIT_LIST_HEAD(&priv->gem_list); priv->num_gpus = 0; @@ -607,9 +601,6 @@ static int etnaviv_bind(struct device *dev) out_register: component_unbind_all(dev, drm); out_bind: - flush_workqueue(priv->wq); - destroy_workqueue(priv->wq); -out_wq: kfree(priv); out_unref: drm_dev_unref(drm); @@ -624,9 +615,6 @@ static void etnaviv_unbind(struct device *dev) drm_dev_unregister(drm); - flush_workqueue(priv->wq); - destroy_workqueue(priv->wq); - component_unbind_all(dev, drm); drm->dev_private = NULL; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index d249acb6da08..8668bfd4abd5 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -56,18 +56,8 @@ struct etnaviv_drm_private { /* list of GEM objects: */ struct mutex gem_lock; struct list_head gem_list; - - struct workqueue_struct *wq; }; -static inline void etnaviv_queue_work(struct drm_device *dev, - struct work_struct *w) -{ - struct etnaviv_drm_private *priv = dev->dev_private; - - queue_work(priv->wq, w); -} - int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, struct drm_file *file); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 6ce4b9d236b4..6176704bdae3 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -958,7 +958,7 @@ static void recover_worker(struct work_struct *work) pm_runtime_put_autosuspend(gpu->dev); /* Retire the buffer objects in a work */ - etnaviv_queue_work(gpu->drm, &gpu->retire_work); + queue_work(gpu->wq, &gpu->retire_work); } static void hangcheck_timer_reset(struct etnaviv_gpu *gpu) @@ -994,7 +994,7 @@ static void hangcheck_handler(struct timer_list *t) dev_err(gpu->dev, " completed fence: %u\n", fence); dev_err(gpu->dev, " active fence: %u\n", gpu->active_fence); - etnaviv_queue_work(gpu->drm, &gpu->recover_work); + queue_work(gpu->wq, &gpu->recover_work); } /* if still more pending work, reset the hangcheck timer: */ @@ -1526,7 +1526,7 @@ static irqreturn_t irq_handler(int irq, void *data) if (gpu->event[event].sync_point) { gpu->sync_point_event = event; - etnaviv_queue_work(gpu->drm, &gpu->sync_point_work); + queue_work(gpu->wq, &gpu->sync_point_work); } fence = gpu->event[event].fence; @@ -1552,7 +1552,7 @@ static irqreturn_t irq_handler(int irq, void *data) } /* Retire the buffer objects in a work */ - etnaviv_queue_work(gpu->drm, &gpu->retire_work); + queue_work(gpu->wq, &gpu->retire_work); ret = IRQ_HANDLED; } @@ -1721,12 +1721,20 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master, return PTR_ERR(gpu->cooling); } + gpu->wq = alloc_ordered_workqueue(dev_name(dev), 0); + if (!gpu->wq) { + if (IS_ENABLED(CONFIG_DRM_ETNAVIV_THERMAL)) + thermal_cooling_device_unregister(gpu->cooling); + return -ENOMEM; + } + #ifdef CONFIG_PM ret = pm_runtime_get_sync(gpu->dev); #else ret = etnaviv_gpu_clk_enable(gpu); #endif if (ret < 0) { + destroy_workqueue(gpu->wq); if (IS_ENABLED(CONFIG_DRM_ETNAVIV_THERMAL)) thermal_cooling_device_unregister(gpu->cooling); return ret; @@ -1761,6 +1769,9 @@ static void etnaviv_gpu_unbind(struct device *dev, struct device *master, hangcheck_disable(gpu); + flush_workqueue(gpu->wq); + destroy_workqueue(gpu->wq); + #ifdef CONFIG_PM pm_runtime_get_sync(gpu->dev); pm_runtime_put_sync_suspend(gpu->dev); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h index 15090bb68f5a..ccef6139cf70 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -106,6 +106,7 @@ struct etnaviv_gpu { struct mutex lock; struct etnaviv_chip_identity identity; struct etnaviv_file_private *lastctx; + struct workqueue_struct *wq; /* 'ring'-buffer: */ struct etnaviv_cmdbuf *buffer; -- 2.20.1