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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_marker.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_marker.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_marker.c171
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;
-}