From 2298e804e96eb3635c39519c8287befd92460303 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Wed, 26 Mar 2014 14:07:44 +0100 Subject: drm/vmwgfx: rework to new fence interface, v2 Use the new fence interface on vmwgfx too. Signed-off-by: Maarten Lankhorst --- Changes since v1: Fix a sleeping function called from invalid context in enable_signaling. --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 1 + drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 2 +- drivers/gpu/drm/vmwgfx/vmwgfx_fence.c | 316 +++++++++++++++++++------------ drivers/gpu/drm/vmwgfx/vmwgfx_fence.h | 29 ++- drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c | 11 +- drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 9 +- 6 files changed, 225 insertions(+), 143 deletions(-) (limited to 'drivers/gpu/drm/vmwgfx') diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index cc6f6cf..4ee799b 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -703,6 +703,7 @@ extern void *vmw_fifo_reserve(struct vmw_private *dev_priv, uint32_t bytes); extern void vmw_fifo_commit(struct vmw_private *dev_priv, uint32_t bytes); extern int vmw_fifo_send_fence(struct vmw_private *dev_priv, uint32_t *seqno); +extern void vmw_fifo_ping_host_locked(struct vmw_private *, uint32_t reason); extern void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason); extern bool vmw_fifo_have_3d(struct vmw_private *dev_priv); extern bool vmw_fifo_have_pitchlock(struct vmw_private *dev_priv); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 214fcfd..0ceaddc 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -2389,7 +2389,7 @@ vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv, BUG_ON(fence == NULL); fence_rep.handle = fence_handle; - fence_rep.seqno = fence->seqno; + fence_rep.seqno = fence->base.seqno; vmw_update_seqno(dev_priv, &dev_priv->fifo); fence_rep.passed_seqno = dev_priv->last_read_seqno; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c index 05b9eea..197164f 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c @@ -35,7 +35,7 @@ struct vmw_fence_manager { struct vmw_private *dev_priv; spinlock_t lock; struct list_head fence_list; - struct work_struct work; + struct work_struct work, ping_work; u32 user_fence_size; u32 fence_size; u32 event_fence_action_size; @@ -46,6 +46,7 @@ struct vmw_fence_manager { bool goal_irq_on; /* Protected by @goal_irq_mutex */ bool seqno_valid; /* Protected by @lock, and may not be set to true without the @goal_irq_mutex held. */ + unsigned ctx; }; struct vmw_user_fence { @@ -80,6 +81,12 @@ struct vmw_event_fence_action { uint32_t *tv_usec; }; +static struct vmw_fence_manager * +fman_from_fence(struct vmw_fence_obj *fence) +{ + return container_of(fence->base.lock, struct vmw_fence_manager, lock); +} + /** * Note on fencing subsystem usage of irqs: * Typically the vmw_fences_update function is called @@ -102,25 +109,143 @@ struct vmw_event_fence_action { * objects with actions attached to them. */ -static void vmw_fence_obj_destroy_locked(struct kref *kref) +static void vmw_fence_obj_destroy(struct fence *f) { struct vmw_fence_obj *fence = - container_of(kref, struct vmw_fence_obj, kref); + container_of(f, struct vmw_fence_obj, base); - struct vmw_fence_manager *fman = fence->fman; - unsigned int num_fences; + struct vmw_fence_manager *fman = fman_from_fence(fence); + unsigned long irq_flags; + spin_lock_irqsave(&fman->lock, irq_flags); list_del_init(&fence->head); - num_fences = --fman->num_fence_objects; - spin_unlock_irq(&fman->lock); - if (fence->destroy) - fence->destroy(fence); - else - kfree(fence); + --fman->num_fence_objects; + spin_unlock_irqrestore(&fman->lock, irq_flags); + fence->destroy(fence); +} - spin_lock_irq(&fman->lock); +static const char *vmw_fence_get_driver_name(struct fence *f) +{ + return "vmwgfx"; +} + +static const char *vmw_fence_get_timeline_name(struct fence *f) +{ + return "svga"; } +static void vmw_fence_ping_func(struct work_struct *work) +{ + struct vmw_fence_manager *fman = + container_of(work, struct vmw_fence_manager, ping_work); + + vmw_fifo_ping_host(fman->dev_priv, SVGA_SYNC_GENERIC); +} + +static bool vmw_fence_enable_signaling(struct fence *f) +{ + struct vmw_fence_obj *fence = + container_of(f, struct vmw_fence_obj, base); + + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct vmw_private *dev_priv = fman->dev_priv; + + __le32 __iomem *fifo_mem = dev_priv->mmio_virt; + u32 seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE); + if (seqno - fence->base.seqno < VMW_FENCE_WRAP) + return false; + + if (mutex_trylock(&dev_priv->hw_mutex)) { + vmw_fifo_ping_host_locked(dev_priv, SVGA_SYNC_GENERIC); + mutex_unlock(&dev_priv->hw_mutex); + } else + schedule_work(&fman->ping_work); + + return true; +} + +struct vmwgfx_wait_cb { + struct fence_cb base; + struct task_struct *task; +}; + +static void +vmwgfx_wait_cb(struct fence *fence, struct fence_cb *cb) +{ + struct vmwgfx_wait_cb *wait = + container_of(cb, struct vmwgfx_wait_cb, base); + + wake_up_process(wait->task); +} + +static void __vmw_fences_update(struct vmw_fence_manager *fman); + +static long vmw_fence_wait(struct fence *f, bool intr, signed long timeout) +{ + struct vmw_fence_obj *fence = + container_of(f, struct vmw_fence_obj, base); + + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct vmw_private *dev_priv = fman->dev_priv; + struct vmwgfx_wait_cb cb; + long ret = timeout; + unsigned long irq_flags; + + if (likely(vmw_fence_obj_signaled(fence))) + return timeout; + + vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); + vmw_seqno_waiter_add(dev_priv); + + spin_lock_irqsave(f->lock, irq_flags); + + if (intr && signal_pending(current)) { + ret = -ERESTARTSYS; + goto out; + } + + cb.base.func = vmwgfx_wait_cb; + cb.task = current; + list_add(&cb.base.node, &f->cb_list); + + while (ret > 0) { + __vmw_fences_update(fman); + if (test_bit(FENCE_FLAG_SIGNALED_BIT, &f->flags)) + break; + + if (intr) + __set_current_state(TASK_INTERRUPTIBLE); + else + __set_current_state(TASK_UNINTERRUPTIBLE); + spin_unlock_irqrestore(f->lock, irq_flags); + + ret = schedule_timeout(ret); + + spin_lock_irqsave(f->lock, irq_flags); + if (ret > 0 && intr && signal_pending(current)) + ret = -ERESTARTSYS; + } + + if (!list_empty(&cb.base.node)) + list_del(&cb.base.node); + __set_current_state(TASK_RUNNING); + +out: + spin_unlock_irqrestore(f->lock, irq_flags); + + vmw_seqno_waiter_remove(dev_priv); + + return ret; +} + +static struct fence_ops vmw_fence_ops = { + .get_driver_name = vmw_fence_get_driver_name, + .get_timeline_name = vmw_fence_get_timeline_name, + .enable_signaling = vmw_fence_enable_signaling, + .wait = vmw_fence_wait, + .release = vmw_fence_obj_destroy, +}; + /** * Execute signal actions on fences recently signaled. @@ -180,12 +305,14 @@ struct vmw_fence_manager *vmw_fence_manager_init(struct vmw_private *dev_priv) INIT_LIST_HEAD(&fman->fence_list); INIT_LIST_HEAD(&fman->cleanup_list); INIT_WORK(&fman->work, &vmw_fence_work_func); + INIT_WORK(&fman->ping_work, &vmw_fence_ping_func); fman->fifo_down = true; fman->user_fence_size = ttm_round_pot(sizeof(struct vmw_user_fence)); fman->fence_size = ttm_round_pot(sizeof(struct vmw_fence_obj)); fman->event_fence_action_size = ttm_round_pot(sizeof(struct vmw_event_fence_action)); mutex_init(&fman->goal_irq_mutex); + fman->ctx = fence_context_alloc(1); return fman; } @@ -196,6 +323,7 @@ void vmw_fence_manager_takedown(struct vmw_fence_manager *fman) bool lists_empty; (void) cancel_work_sync(&fman->work); + (void) cancel_work_sync(&fman->ping_work); spin_lock_irqsave(&fman->lock, irq_flags); lists_empty = list_empty(&fman->fence_list) && @@ -211,16 +339,12 @@ static int vmw_fence_obj_init(struct vmw_fence_manager *fman, void (*destroy) (struct vmw_fence_obj *fence)) { unsigned long irq_flags; - unsigned int num_fences; int ret = 0; - fence->seqno = seqno; + fence_init(&fence->base, &vmw_fence_ops, &fman->lock, + fman->ctx, seqno); INIT_LIST_HEAD(&fence->seq_passed_actions); - fence->fman = fman; - fence->signaled = 0; - kref_init(&fence->kref); fence->destroy = destroy; - init_waitqueue_head(&fence->queue); spin_lock_irqsave(&fman->lock, irq_flags); if (unlikely(fman->fifo_down)) { @@ -228,7 +352,7 @@ static int vmw_fence_obj_init(struct vmw_fence_manager *fman, goto out_unlock; } list_add_tail(&fence->head, &fman->fence_list); - num_fences = ++fman->num_fence_objects; + ++fman->num_fence_objects; out_unlock: spin_unlock_irqrestore(&fman->lock, irq_flags); @@ -236,38 +360,6 @@ out_unlock: } -struct vmw_fence_obj *vmw_fence_obj_reference(struct vmw_fence_obj *fence) -{ - if (unlikely(fence == NULL)) - return NULL; - - kref_get(&fence->kref); - return fence; -} - -/** - * vmw_fence_obj_unreference - * - * Note that this function may not be entered with disabled irqs since - * it may re-enable them in the destroy function. - * - */ -void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p) -{ - struct vmw_fence_obj *fence = *fence_p; - struct vmw_fence_manager *fman; - - if (unlikely(fence == NULL)) - return; - - fman = fence->fman; - *fence_p = NULL; - spin_lock_irq(&fman->lock); - BUG_ON(atomic_read(&fence->kref.refcount) == 0); - kref_put(&fence->kref, vmw_fence_obj_destroy_locked); - spin_unlock_irq(&fman->lock); -} - static void vmw_fences_perform_actions(struct vmw_fence_manager *fman, struct list_head *list) { @@ -323,7 +415,7 @@ static bool vmw_fence_goal_new_locked(struct vmw_fence_manager *fman, list_for_each_entry(fence, &fman->fence_list, head) { if (!list_empty(&fence->seq_passed_actions)) { fman->seqno_valid = true; - iowrite32(fence->seqno, + iowrite32(fence->base.seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); break; } @@ -350,27 +442,27 @@ static bool vmw_fence_goal_new_locked(struct vmw_fence_manager *fman, */ static bool vmw_fence_goal_check_locked(struct vmw_fence_obj *fence) { + struct vmw_fence_manager *fman = fman_from_fence(fence); u32 goal_seqno; __le32 __iomem *fifo_mem; - if (fence->signaled) + if (fence_is_signaled_locked(&fence->base)) return false; - fifo_mem = fence->fman->dev_priv->mmio_virt; + fifo_mem = fman->dev_priv->mmio_virt; goal_seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE_GOAL); - if (likely(fence->fman->seqno_valid && - goal_seqno - fence->seqno < VMW_FENCE_WRAP)) + if (likely(fman->seqno_valid && + goal_seqno - fence->base.seqno < VMW_FENCE_WRAP)) return false; - iowrite32(fence->seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); - fence->fman->seqno_valid = true; + iowrite32(fence->base.seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); + fman->seqno_valid = true; return true; } -void vmw_fences_update(struct vmw_fence_manager *fman) +static void __vmw_fences_update(struct vmw_fence_manager *fman) { - unsigned long flags; struct vmw_fence_obj *fence, *next_fence; struct list_head action_list; bool needs_rerun; @@ -379,32 +471,25 @@ void vmw_fences_update(struct vmw_fence_manager *fman) seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE); rerun: - spin_lock_irqsave(&fman->lock, flags); list_for_each_entry_safe(fence, next_fence, &fman->fence_list, head) { - if (seqno - fence->seqno < VMW_FENCE_WRAP) { + if (seqno - fence->base.seqno < VMW_FENCE_WRAP) { list_del_init(&fence->head); - fence->signaled = 1; + fence_signal_locked(&fence->base); INIT_LIST_HEAD(&action_list); list_splice_init(&fence->seq_passed_actions, &action_list); vmw_fences_perform_actions(fman, &action_list); - wake_up_all(&fence->queue); } else break; } - needs_rerun = vmw_fence_goal_new_locked(fman, seqno); - - if (!list_empty(&fman->cleanup_list)) - (void) schedule_work(&fman->work); - spin_unlock_irqrestore(&fman->lock, flags); - /* * Rerun if the fence goal seqno was updated, and the * hardware might have raced with that update, so that * we missed a fence_goal irq. */ + needs_rerun = vmw_fence_goal_new_locked(fman, seqno); if (unlikely(needs_rerun)) { new_seqno = ioread32(fifo_mem + SVGA_FIFO_FENCE); if (new_seqno != seqno) { @@ -412,75 +497,58 @@ rerun: goto rerun; } } + + if (!list_empty(&fman->cleanup_list)) + (void) schedule_work(&fman->work); } -bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence) +void vmw_fences_update(struct vmw_fence_manager *fman) { - struct vmw_fence_manager *fman = fence->fman; unsigned long irq_flags; - uint32_t signaled; spin_lock_irqsave(&fman->lock, irq_flags); - signaled = fence->signaled; + __vmw_fences_update(fman); spin_unlock_irqrestore(&fman->lock, irq_flags); +} + +bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence) +{ + struct vmw_fence_manager *fman = fman_from_fence(fence); - if (signaled) + if (test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->base.flags)) return 1; vmw_fences_update(fman); - spin_lock_irqsave(&fman->lock, irq_flags); - signaled = fence->signaled; - spin_unlock_irqrestore(&fman->lock, irq_flags); - - return signaled; + return fence_is_signaled(&fence->base); } int vmw_fence_obj_wait(struct vmw_fence_obj *fence, bool lazy, bool interruptible, unsigned long timeout) { - struct vmw_private *dev_priv = fence->fman->dev_priv; - long ret; + long ret = fence_wait_timeout(&fence->base, interruptible, timeout); - if (likely(vmw_fence_obj_signaled(fence))) + if (likely(ret > 0)) return 0; - - vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); - vmw_seqno_waiter_add(dev_priv); - - if (interruptible) - ret = wait_event_interruptible_timeout - (fence->queue, - vmw_fence_obj_signaled(fence), - timeout); + else if (ret == 0) + return -EBUSY; else - ret = wait_event_timeout - (fence->queue, - vmw_fence_obj_signaled(fence), - timeout); - - vmw_seqno_waiter_remove(dev_priv); - - if (unlikely(ret == 0)) - ret = -EBUSY; - else if (likely(ret > 0)) - ret = 0; - - return ret; + return ret; } void vmw_fence_obj_flush(struct vmw_fence_obj *fence) { - struct vmw_private *dev_priv = fence->fman->dev_priv; + struct vmw_private *dev_priv = fman_from_fence(fence)->dev_priv; vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); } static void vmw_fence_destroy(struct vmw_fence_obj *fence) { - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); + + fence_free(&fence->base); - kfree(fence); /* * Free kernel space accounting. */ @@ -527,7 +595,7 @@ static void vmw_user_fence_destroy(struct vmw_fence_obj *fence) { struct vmw_user_fence *ufence = container_of(fence, struct vmw_user_fence, fence); - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); ttm_base_object_kfree(ufence, base); /* @@ -620,7 +688,6 @@ out_no_object: void vmw_fence_fifo_down(struct vmw_fence_manager *fman) { - unsigned long irq_flags; struct list_head action_list; int ret; @@ -629,13 +696,13 @@ void vmw_fence_fifo_down(struct vmw_fence_manager *fman) * restart when we've released the fman->lock. */ - spin_lock_irqsave(&fman->lock, irq_flags); + spin_lock_irq(&fman->lock); fman->fifo_down = true; while (!list_empty(&fman->fence_list)) { struct vmw_fence_obj *fence = list_entry(fman->fence_list.prev, struct vmw_fence_obj, head); - kref_get(&fence->kref); + fence_get(&fence->base); spin_unlock_irq(&fman->lock); ret = vmw_fence_obj_wait(fence, false, false, @@ -643,20 +710,18 @@ void vmw_fence_fifo_down(struct vmw_fence_manager *fman) if (unlikely(ret != 0)) { list_del_init(&fence->head); - fence->signaled = 1; + fence_signal(&fence->base); INIT_LIST_HEAD(&action_list); list_splice_init(&fence->seq_passed_actions, &action_list); vmw_fences_perform_actions(fman, &action_list); - wake_up_all(&fence->queue); } - spin_lock_irq(&fman->lock); - BUG_ON(!list_empty(&fence->head)); - kref_put(&fence->kref, vmw_fence_obj_destroy_locked); + fence_put(&fence->base); + spin_lock_irq(&fman->lock); } - spin_unlock_irqrestore(&fman->lock, irq_flags); + spin_unlock_irq(&fman->lock); } void vmw_fence_fifo_up(struct vmw_fence_manager *fman) @@ -748,12 +813,12 @@ int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, } fence = &(container_of(base, struct vmw_user_fence, base)->fence); - fman = fence->fman; + fman = fman_from_fence(fence); arg->signaled = vmw_fence_obj_signaled(fence); - spin_lock_irq(&fman->lock); arg->signaled_flags = arg->flags; + spin_lock_irq(&fman->lock); arg->passed_seqno = dev_priv->last_read_seqno; spin_unlock_irq(&fman->lock); @@ -866,7 +931,7 @@ static void vmw_event_fence_action_cleanup(struct vmw_fence_action *action) { struct vmw_event_fence_action *eaction = container_of(action, struct vmw_event_fence_action, action); - struct vmw_fence_manager *fman = eaction->fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(eaction->fence); unsigned long irq_flags; spin_lock_irqsave(&fman->lock, irq_flags); @@ -890,7 +955,7 @@ static void vmw_event_fence_action_cleanup(struct vmw_fence_action *action) static void vmw_fence_obj_add_action(struct vmw_fence_obj *fence, struct vmw_fence_action *action) { - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); unsigned long irq_flags; bool run_update = false; @@ -898,7 +963,7 @@ static void vmw_fence_obj_add_action(struct vmw_fence_obj *fence, spin_lock_irqsave(&fman->lock, irq_flags); fman->pending_actions[action->type]++; - if (fence->signaled) { + if (fence_is_signaled_locked(&fence->base)) { struct list_head action_list; INIT_LIST_HEAD(&action_list); @@ -950,7 +1015,7 @@ int vmw_event_fence_action_queue(struct drm_file *file_priv, bool interruptible) { struct vmw_event_fence_action *eaction; - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); unsigned long irq_flags; @@ -990,7 +1055,8 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, bool interruptible) { struct vmw_event_fence_pending *event; - struct drm_device *dev = fence->fman->dev_priv->dev; + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct drm_device *dev = fman->dev_priv->dev; unsigned long irq_flags; int ret; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h index 8c18d32..26a4add 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h @@ -27,6 +27,8 @@ #ifndef _VMWGFX_FENCE_H_ +#include + #define VMW_FENCE_WAIT_TIMEOUT (5*HZ) struct vmw_private; @@ -50,15 +52,11 @@ struct vmw_fence_action { }; struct vmw_fence_obj { - struct kref kref; - u32 seqno; + struct fence base; - struct vmw_fence_manager *fman; struct list_head head; - uint32_t signaled; struct list_head seq_passed_actions; void (*destroy)(struct vmw_fence_obj *fence); - wait_queue_head_t queue; }; extern struct vmw_fence_manager * @@ -66,10 +64,23 @@ vmw_fence_manager_init(struct vmw_private *dev_priv); extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman); -extern void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p); - -extern struct vmw_fence_obj * -vmw_fence_obj_reference(struct vmw_fence_obj *fence); +static inline void +vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p) +{ + struct vmw_fence_obj *fence = *fence_p; + + *fence_p = NULL; + if (fence) + fence_put(&fence->base); +} + +static inline struct vmw_fence_obj * +vmw_fence_obj_reference(struct vmw_fence_obj *fence) +{ + if (fence) + fence_get(&fence->base); + return fence; +} extern void vmw_fences_update(struct vmw_fence_manager *fman); diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c index 6ccd993..d9b4e69 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c @@ -160,16 +160,21 @@ int vmw_fifo_init(struct vmw_private *dev_priv, struct vmw_fifo_state *fifo) return vmw_fifo_send_fence(dev_priv, &dummy); } -void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason) +void vmw_fifo_ping_host_locked(struct vmw_private *dev_priv, uint32_t reason) { __le32 __iomem *fifo_mem = dev_priv->mmio_virt; - mutex_lock(&dev_priv->hw_mutex); - if (unlikely(ioread32(fifo_mem + SVGA_FIFO_BUSY) == 0)) { iowrite32(1, fifo_mem + SVGA_FIFO_BUSY); vmw_write(dev_priv, SVGA_REG_SYNC, reason); } +} + +void vmw_fifo_ping_host(struct vmw_private *dev_priv, uint32_t reason) +{ + mutex_lock(&dev_priv->hw_mutex); + + vmw_fifo_ping_host_locked(dev_priv, reason); mutex_unlock(&dev_priv->hw_mutex); } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c index 2316936..67aebdb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c @@ -1420,21 +1420,20 @@ void vmw_fence_single_bo(struct ttm_buffer_object *bo, struct vmw_fence_obj *fence) { struct ttm_bo_device *bdev = bo->bdev; - struct ttm_bo_driver *driver = bdev->driver; struct vmw_fence_obj *old_fence_obj; struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev); - if (fence == NULL) + if (fence == NULL) { vmw_execbuf_fence_commands(NULL, dev_priv, &fence, NULL); - else - driver->sync_obj_ref(fence); + } else + vmw_fence_obj_reference(fence); + reservation_object_add_excl_fence(bo->resv, &fence->base); old_fence_obj = bo->sync_obj; bo->sync_obj = fence; - if (old_fence_obj) vmw_fence_obj_unreference(&old_fence_obj); } -- cgit v1.1