diff options
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_marker.c')
| -rw-r--r-- | drivers/gpu/drm/vmwgfx/vmwgfx_marker.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c b/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c deleted file mode 100644 index 8a8725c2716c..000000000000 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c +++ /dev/null @@ -1,171 +0,0 @@ -/************************************************************************** - * - * Copyright (C) 2010 VMware, Inc., Palo Alto, CA., USA - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial portions - * of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, - * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR - * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE - * USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -#include "vmwgfx_drv.h" - -struct vmw_marker { - struct list_head head; - uint32_t seqno; - struct timespec submitted; -}; - -void vmw_marker_queue_init(struct vmw_marker_queue *queue) -{ - INIT_LIST_HEAD(&queue->head); - queue->lag = ns_to_timespec(0); - getrawmonotonic(&queue->lag_time); - spin_lock_init(&queue->lock); -} - -void vmw_marker_queue_takedown(struct vmw_marker_queue *queue) -{ - struct vmw_marker *marker, *next; - - spin_lock(&queue->lock); - list_for_each_entry_safe(marker, next, &queue->head, head) { - kfree(marker); - } - spin_unlock(&queue->lock); -} - -int vmw_marker_push(struct vmw_marker_queue *queue, - uint32_t seqno) -{ - struct vmw_marker *marker = kmalloc(sizeof(*marker), GFP_KERNEL); - - if (unlikely(!marker)) - return -ENOMEM; - - marker->seqno = seqno; - getrawmonotonic(&marker->submitted); - spin_lock(&queue->lock); - list_add_tail(&marker->head, &queue->head); - spin_unlock(&queue->lock); - - return 0; -} - -int vmw_marker_pull(struct vmw_marker_queue *queue, - uint32_t signaled_seqno) -{ - struct vmw_marker *marker, *next; - struct timespec now; - bool updated = false; - - spin_lock(&queue->lock); - getrawmonotonic(&now); - - if (list_empty(&queue->head)) { - queue->lag = ns_to_timespec(0); - queue->lag_time = now; - updated = true; - goto out_unlock; - } - - list_for_each_entry_safe(marker, next, &queue->head, head) { - if (signaled_seqno - marker->seqno > (1 << 30)) - continue; - - queue->lag = timespec_sub(now, marker->submitted); - queue->lag_time = now; - updated = true; - list_del(&marker->head); - kfree(marker); - } - -out_unlock: - spin_unlock(&queue->lock); - - return (updated) ? 0 : -EBUSY; -} - -static struct timespec vmw_timespec_add(struct timespec t1, - struct timespec t2) -{ - t1.tv_sec += t2.tv_sec; - t1.tv_nsec += t2.tv_nsec; - if (t1.tv_nsec >= 1000000000L) { - t1.tv_sec += 1; - t1.tv_nsec -= 1000000000L; - } - - return t1; -} - -static struct timespec vmw_fifo_lag(struct vmw_marker_queue *queue) -{ - struct timespec now; - - spin_lock(&queue->lock); - getrawmonotonic(&now); - queue->lag = vmw_timespec_add(queue->lag, - timespec_sub(now, queue->lag_time)); - queue->lag_time = now; - spin_unlock(&queue->lock); - return queue->lag; -} - - -static bool vmw_lag_lt(struct vmw_marker_queue *queue, - uint32_t us) -{ - struct timespec lag, cond; - - cond = ns_to_timespec((s64) us * 1000); - lag = vmw_fifo_lag(queue); - return (timespec_compare(&lag, &cond) < 1); -} - -int vmw_wait_lag(struct vmw_private *dev_priv, - struct vmw_marker_queue *queue, uint32_t us) -{ - struct vmw_marker *marker; - uint32_t seqno; - int ret; - - while (!vmw_lag_lt(queue, us)) { - spin_lock(&queue->lock); - if (list_empty(&queue->head)) - seqno = atomic_read(&dev_priv->marker_seq); - else { - marker = list_first_entry(&queue->head, - struct vmw_marker, head); - seqno = marker->seqno; - } - spin_unlock(&queue->lock); - - ret = vmw_wait_seqno(dev_priv, false, seqno, true, - 3*HZ); - - if (unlikely(ret != 0)) - return ret; - - (void) vmw_marker_pull(queue, seqno); - } - return 0; -} |
