#include <linux/pci.h>
#include <linux/dma-buf.h>
-static __must_check int i915_gem_object_flush_gpu_write_domain(struct drm_i915_gem_object *obj);
static void i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj);
static void i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj);
static __must_check int i915_gem_object_bind_to_gtt(struct drm_i915_gem_object *obj,
list_move_tail(&obj->mm_list, &dev_priv->mm.active_list);
list_move_tail(&obj->ring_list, &ring->active_list);
- obj->last_rendering_seqno = seqno;
+ obj->last_read_seqno = seqno;
if (obj->fenced_gpu_access) {
obj->last_fenced_seqno = seqno;
}
static void
-i915_gem_object_move_off_active(struct drm_i915_gem_object *obj)
-{
- list_del_init(&obj->ring_list);
- obj->last_rendering_seqno = 0;
- obj->last_fenced_seqno = 0;
-}
-
-static void
-i915_gem_object_move_to_flushing(struct drm_i915_gem_object *obj)
+i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
{
struct drm_device *dev = obj->base.dev;
- drm_i915_private_t *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ BUG_ON(obj->base.write_domain & ~I915_GEM_GPU_DOMAINS);
BUG_ON(!obj->active);
- list_move_tail(&obj->mm_list, &dev_priv->mm.flushing_list);
- i915_gem_object_move_off_active(obj);
-}
-
-static void
-i915_gem_object_move_to_inactive(struct drm_i915_gem_object *obj)
-{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ if (obj->pin_count) /* are we a framebuffer? */
+ intel_mark_fb_idle(obj);
list_move_tail(&obj->mm_list, &dev_priv->mm.inactive_list);
- BUG_ON(!list_empty(&obj->gpu_write_list));
- BUG_ON(!obj->active);
+ list_del_init(&obj->ring_list);
obj->ring = NULL;
- i915_gem_object_move_off_active(obj);
+ obj->last_read_seqno = 0;
+ obj->last_write_seqno = 0;
+ obj->base.write_domain = 0;
+
+ obj->last_fenced_seqno = 0;
obj->fenced_gpu_access = false;
obj->active = 0;
- obj->pending_gpu_write = false;
drm_gem_object_unreference(&obj->base);
WARN_ON(i915_verify_lists(dev));
return obj->madv == I915_MADV_DONTNEED;
}
-static void
-i915_gem_process_flushing_list(struct intel_ring_buffer *ring,
- uint32_t flush_domains)
-{
- struct drm_i915_gem_object *obj, *next;
-
- list_for_each_entry_safe(obj, next,
- &ring->gpu_write_list,
- gpu_write_list) {
- if (obj->base.write_domain & flush_domains) {
- uint32_t old_write_domain = obj->base.write_domain;
-
- obj->base.write_domain = 0;
- list_del_init(&obj->gpu_write_list);
- i915_gem_object_move_to_active(obj, ring,
- i915_gem_next_request_seqno(ring));
-
- trace_i915_gem_object_change_domain(obj,
- obj->base.read_domains,
- old_write_domain);
- }
- }
-}
-
static u32
i915_gem_get_seqno(struct drm_device *dev)
{
* is that the flush _must_ happen before the next request, no matter
* what.
*/
- if (ring->gpu_caches_dirty) {
- ret = i915_gem_flush_ring(ring, 0, I915_GEM_GPU_DOMAINS);
- if (ret)
- return ret;
+ ret = intel_ring_flush_all_caches(ring);
+ if (ret)
+ return ret;
- ring->gpu_caches_dirty = false;
+ if (request == NULL) {
+ request = kmalloc(sizeof(*request), GFP_KERNEL);
+ if (request == NULL)
+ return -ENOMEM;
}
- BUG_ON(request == NULL);
seqno = i915_gem_next_request_seqno(ring);
/* Record the position of the start of the request so that
request_ring_position = intel_ring_get_tail(ring);
ret = ring->add_request(ring, &seqno);
- if (ret)
- return ret;
+ if (ret) {
+ kfree(request);
+ return ret;
+ }
trace_i915_gem_request_add(ring, seqno);
request->emitted_jiffies = jiffies;
was_empty = list_empty(&ring->request_list);
list_add_tail(&request->list, &ring->request_list);
+ request->file_priv = NULL;
if (file) {
struct drm_i915_file_private *file_priv = file->driver_priv;
jiffies +
msecs_to_jiffies(DRM_I915_HANGCHECK_PERIOD));
}
- if (was_empty)
+ if (was_empty) {
queue_delayed_work(dev_priv->wq,
&dev_priv->mm.retire_work, HZ);
+ intel_mark_busy(dev_priv->dev);
+ }
}
- WARN_ON(!list_empty(&ring->gpu_write_list));
-
return 0;
}
struct drm_i915_gem_object,
ring_list);
- obj->base.write_domain = 0;
- list_del_init(&obj->gpu_write_list);
i915_gem_object_move_to_inactive(obj);
}
}
for_each_ring(ring, dev_priv, i)
i915_gem_reset_ring_lists(dev_priv, ring);
- /* Remove anything from the flushing lists. The GPU cache is likely
- * to be lost on reset along with the data, so simply move the
- * lost bo to the inactive list.
- */
- while (!list_empty(&dev_priv->mm.flushing_list)) {
- obj = list_first_entry(&dev_priv->mm.flushing_list,
- struct drm_i915_gem_object,
- mm_list);
-
- obj->base.write_domain = 0;
- list_del_init(&obj->gpu_write_list);
- i915_gem_object_move_to_inactive(obj);
- }
-
/* Move everything out of the GPU domains to ensure we do any
* necessary invalidation upon reuse.
*/
WARN_ON(i915_verify_lists(ring->dev));
- seqno = ring->get_seqno(ring);
+ seqno = ring->get_seqno(ring, true);
for (i = 0; i < ARRAY_SIZE(ring->sync_seqno); i++)
if (seqno >= ring->sync_seqno[i])
struct drm_i915_gem_object,
ring_list);
- if (!i915_seqno_passed(seqno, obj->last_rendering_seqno))
+ if (!i915_seqno_passed(seqno, obj->last_read_seqno))
break;
- if (obj->base.write_domain != 0)
- i915_gem_object_move_to_flushing(obj);
- else
- i915_gem_object_move_to_inactive(obj);
+ i915_gem_object_move_to_inactive(obj);
}
if (unlikely(ring->trace_irq_seqno &&
*/
idle = true;
for_each_ring(ring, dev_priv, i) {
- if (ring->gpu_caches_dirty) {
- struct drm_i915_gem_request *request;
-
- request = kzalloc(sizeof(*request), GFP_KERNEL);
- if (request == NULL ||
- i915_add_request(ring, NULL, request))
- kfree(request);
- }
+ if (ring->gpu_caches_dirty)
+ i915_add_request(ring, NULL, NULL);
idle &= list_empty(&ring->request_list);
}
if (!dev_priv->mm.suspended && !idle)
queue_delayed_work(dev_priv->wq, &dev_priv->mm.retire_work, HZ);
+ if (idle)
+ intel_mark_idle(dev);
mutex_unlock(&dev->struct_mutex);
}
static int
i915_gem_check_olr(struct intel_ring_buffer *ring, u32 seqno)
{
- int ret = 0;
+ int ret;
BUG_ON(!mutex_is_locked(&ring->dev->struct_mutex));
- if (seqno == ring->outstanding_lazy_request) {
- struct drm_i915_gem_request *request;
-
- request = kzalloc(sizeof(*request), GFP_KERNEL);
- if (request == NULL)
- return -ENOMEM;
-
- ret = i915_add_request(ring, NULL, request);
- if (ret) {
- kfree(request);
- return ret;
- }
-
- BUG_ON(seqno != request->seqno);
- }
+ ret = 0;
+ if (seqno == ring->outstanding_lazy_request)
+ ret = i915_add_request(ring, NULL, NULL);
return ret;
}
bool wait_forever = true;
int ret;
- if (i915_seqno_passed(ring->get_seqno(ring), seqno))
+ if (i915_seqno_passed(ring->get_seqno(ring, true), seqno))
return 0;
trace_i915_gem_request_wait_begin(ring, seqno);
getrawmonotonic(&before);
#define EXIT_COND \
- (i915_seqno_passed(ring->get_seqno(ring), seqno) || \
+ (i915_seqno_passed(ring->get_seqno(ring, false), seqno) || \
atomic_read(&dev_priv->mm.wedged))
do {
if (interruptible)
* Ensures that all rendering to the object has completed and the object is
* safe to unbind from the GTT or access from the CPU.
*/
-int
-i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj)
+static __must_check int
+i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
+ bool readonly)
{
+ u32 seqno;
int ret;
- /* This function only exists to support waiting for existing rendering,
- * not for emitting required flushes.
- */
- BUG_ON((obj->base.write_domain & I915_GEM_GPU_DOMAINS) != 0);
-
/* If there is rendering queued on the buffer being evicted, wait for
* it.
*/
- if (obj->active) {
- ret = i915_wait_seqno(obj->ring, obj->last_rendering_seqno);
- if (ret)
- return ret;
- i915_gem_retire_requests_ring(obj->ring);
+ if (readonly)
+ seqno = obj->last_write_seqno;
+ else
+ seqno = obj->last_read_seqno;
+ if (seqno == 0)
+ return 0;
+
+ ret = i915_wait_seqno(obj->ring, seqno);
+ if (ret)
+ return ret;
+
+ /* Manually manage the write flush as we may have not yet retired
+ * the buffer.
+ */
+ if (obj->last_write_seqno &&
+ i915_seqno_passed(seqno, obj->last_write_seqno)) {
+ obj->last_write_seqno = 0;
+ obj->base.write_domain &= ~I915_GEM_GPU_DOMAINS;
}
+ i915_gem_retire_requests_ring(obj->ring);
return 0;
}
int ret;
if (obj->active) {
- ret = i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_check_olr(obj->ring, obj->last_read_seqno);
if (ret)
return ret;
- ret = i915_gem_check_olr(obj->ring,
- obj->last_rendering_seqno);
- if (ret)
- return ret;
i915_gem_retire_requests_ring(obj->ring);
}
goto out;
if (obj->active) {
- seqno = obj->last_rendering_seqno;
+ seqno = obj->last_read_seqno;
ring = obj->ring;
}
return 0;
if (to == NULL || !i915_semaphore_is_enabled(obj->base.dev))
- return i915_gem_object_wait_rendering(obj);
+ return i915_gem_object_wait_rendering(obj, false);
idx = intel_ring_sync_index(from, to);
- seqno = obj->last_rendering_seqno;
+ seqno = obj->last_read_seqno;
if (seqno <= from->sync_seqno[idx])
return 0;
return ret;
}
-int
-i915_gem_flush_ring(struct intel_ring_buffer *ring,
- uint32_t invalidate_domains,
- uint32_t flush_domains)
-{
- int ret;
-
- if (((invalidate_domains | flush_domains) & I915_GEM_GPU_DOMAINS) == 0)
- return 0;
-
- trace_i915_gem_ring_flush(ring, invalidate_domains, flush_domains);
-
- ret = ring->flush(ring, invalidate_domains, flush_domains);
- if (ret)
- return ret;
-
- if (flush_domains & I915_GEM_GPU_DOMAINS)
- i915_gem_process_flushing_list(ring, flush_domains);
-
- return 0;
-}
-
static int i915_ring_idle(struct intel_ring_buffer *ring)
{
- int ret;
-
- if (list_empty(&ring->gpu_write_list) && list_empty(&ring->active_list))
+ if (list_empty(&ring->active_list))
return 0;
- if (!list_empty(&ring->gpu_write_list)) {
- ret = i915_gem_flush_ring(ring,
- I915_GEM_GPU_DOMAINS, I915_GEM_GPU_DOMAINS);
- if (ret)
- return ret;
- }
-
return i915_wait_seqno(ring, i915_gem_next_request_seqno(ring));
}
ret = i915_ring_idle(ring);
if (ret)
return ret;
-
- /* Is the device fubar? */
- if (WARN_ON(!list_empty(&ring->gpu_write_list)))
- return -EBUSY;
}
return 0;
static int
i915_gem_object_flush_fence(struct drm_i915_gem_object *obj)
{
- int ret;
-
- if (obj->fenced_gpu_access) {
- if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) {
- ret = i915_gem_flush_ring(obj->ring,
- 0, obj->base.write_domain);
- if (ret)
- return ret;
- }
-
- obj->fenced_gpu_access = false;
- }
-
if (obj->last_fenced_seqno) {
- ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno);
+ int ret = i915_wait_seqno(obj->ring, obj->last_fenced_seqno);
if (ret)
return ret;
if (obj->base.read_domains & I915_GEM_DOMAIN_GTT)
mb();
+ obj->fenced_gpu_access = false;
return 0;
}
return 0;
}
+static bool i915_gem_valid_gtt_space(struct drm_device *dev,
+ struct drm_mm_node *gtt_space,
+ unsigned long cache_level)
+{
+ struct drm_mm_node *other;
+
+ /* On non-LLC machines we have to be careful when putting differing
+ * types of snoopable memory together to avoid the prefetcher
+ * crossing memory domains and dieing.
+ */
+ if (HAS_LLC(dev))
+ return true;
+
+ if (gtt_space == NULL)
+ return true;
+
+ if (list_empty(>t_space->node_list))
+ return true;
+
+ other = list_entry(gtt_space->node_list.prev, struct drm_mm_node, node_list);
+ if (other->allocated && !other->hole_follows && other->color != cache_level)
+ return false;
+
+ other = list_entry(gtt_space->node_list.next, struct drm_mm_node, node_list);
+ if (other->allocated && !gtt_space->hole_follows && other->color != cache_level)
+ return false;
+
+ return true;
+}
+
+static void i915_gem_verify_gtt(struct drm_device *dev)
+{
+#if WATCH_GTT
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_gem_object *obj;
+ int err = 0;
+
+ list_for_each_entry(obj, &dev_priv->mm.gtt_list, gtt_list) {
+ if (obj->gtt_space == NULL) {
+ printk(KERN_ERR "object found on GTT list with no space reserved\n");
+ err++;
+ continue;
+ }
+
+ if (obj->cache_level != obj->gtt_space->color) {
+ printk(KERN_ERR "object reserved space [%08lx, %08lx] with wrong color, cache_level=%x, color=%lx\n",
+ obj->gtt_space->start,
+ obj->gtt_space->start + obj->gtt_space->size,
+ obj->cache_level,
+ obj->gtt_space->color);
+ err++;
+ continue;
+ }
+
+ if (!i915_gem_valid_gtt_space(dev,
+ obj->gtt_space,
+ obj->cache_level)) {
+ printk(KERN_ERR "invalid GTT space found at [%08lx, %08lx] - color=%x\n",
+ obj->gtt_space->start,
+ obj->gtt_space->start + obj->gtt_space->size,
+ obj->cache_level);
+ err++;
+ continue;
+ }
+ }
+
+ WARN_ON(err);
+#endif
+}
+
/**
* Finds free space in the GTT aperture and binds the object there.
*/
search_free:
if (map_and_fenceable)
free_space =
- drm_mm_search_free_in_range(&dev_priv->mm.gtt_space,
- size, alignment,
- 0, dev_priv->mm.gtt_mappable_end,
- 0);
+ drm_mm_search_free_in_range_color(&dev_priv->mm.gtt_space,
+ size, alignment, obj->cache_level,
+ 0, dev_priv->mm.gtt_mappable_end,
+ false);
else
- free_space = drm_mm_search_free(&dev_priv->mm.gtt_space,
- size, alignment, 0);
+ free_space = drm_mm_search_free_color(&dev_priv->mm.gtt_space,
+ size, alignment, obj->cache_level,
+ false);
if (free_space != NULL) {
if (map_and_fenceable)
obj->gtt_space =
drm_mm_get_block_range_generic(free_space,
- size, alignment, 0,
+ size, alignment, obj->cache_level,
0, dev_priv->mm.gtt_mappable_end,
- 0);
+ false);
else
obj->gtt_space =
- drm_mm_get_block(free_space, size, alignment);
+ drm_mm_get_block_generic(free_space,
+ size, alignment, obj->cache_level,
+ false);
}
if (obj->gtt_space == NULL) {
/* If the gtt is empty and we're still having trouble
* fitting our object in, we're out of memory.
*/
ret = i915_gem_evict_something(dev, size, alignment,
+ obj->cache_level,
map_and_fenceable);
if (ret)
return ret;
goto search_free;
}
+ if (WARN_ON(!i915_gem_valid_gtt_space(dev,
+ obj->gtt_space,
+ obj->cache_level))) {
+ drm_mm_put_block(obj->gtt_space);
+ obj->gtt_space = NULL;
+ return -EINVAL;
+ }
ret = i915_gem_object_get_pages_gtt(obj, gfpmask);
if (ret) {
obj->map_and_fenceable = mappable && fenceable;
trace_i915_gem_object_bind(obj, map_and_fenceable);
+ i915_gem_verify_gtt(dev);
return 0;
}
drm_clflush_pages(obj->pages, obj->base.size / PAGE_SIZE);
}
-/** Flushes any GPU write domain for the object if it's dirty. */
-static int
-i915_gem_object_flush_gpu_write_domain(struct drm_i915_gem_object *obj)
-{
- if ((obj->base.write_domain & I915_GEM_GPU_DOMAINS) == 0)
- return 0;
-
- /* Queue the GPU write cache flushing we need. */
- return i915_gem_flush_ring(obj->ring, 0, obj->base.write_domain);
-}
-
/** Flushes the GTT write domain for the object if it's dirty. */
static void
i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj)
if (obj->base.write_domain == I915_GEM_DOMAIN_GTT)
return 0;
- ret = i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_wait_rendering(obj, !write);
if (ret)
return ret;
- if (obj->pending_gpu_write || write) {
- ret = i915_gem_object_wait_rendering(obj);
- if (ret)
- return ret;
- }
-
i915_gem_object_flush_cpu_write_domain(obj);
old_write_domain = obj->base.write_domain;
return -EBUSY;
}
+ if (!i915_gem_valid_gtt_space(dev, obj->gtt_space, cache_level)) {
+ ret = i915_gem_object_unbind(obj);
+ if (ret)
+ return ret;
+ }
+
if (obj->gtt_space) {
ret = i915_gem_object_finish_gpu(obj);
if (ret)
* registers with snooped memory, so relinquish any fences
* currently pointing to our region in the aperture.
*/
- if (INTEL_INFO(obj->base.dev)->gen < 6) {
+ if (INTEL_INFO(dev)->gen < 6) {
ret = i915_gem_object_put_fence(obj);
if (ret)
return ret;
if (obj->has_aliasing_ppgtt_mapping)
i915_ppgtt_bind_object(dev_priv->mm.aliasing_ppgtt,
obj, cache_level);
+
+ obj->gtt_space->color = cache_level;
}
if (cache_level == I915_CACHE_NONE) {
}
obj->cache_level = cache_level;
+ i915_gem_verify_gtt(dev);
return 0;
}
+int i915_gem_get_cacheing_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_i915_gem_cacheing *args = data;
+ struct drm_i915_gem_object *obj;
+ int ret;
+
+ ret = i915_mutex_lock_interruptible(dev);
+ if (ret)
+ return ret;
+
+ obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+ if (&obj->base == NULL) {
+ ret = -ENOENT;
+ goto unlock;
+ }
+
+ args->cacheing = obj->cache_level != I915_CACHE_NONE;
+
+ drm_gem_object_unreference(&obj->base);
+unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
+int i915_gem_set_cacheing_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file)
+{
+ struct drm_i915_gem_cacheing *args = data;
+ struct drm_i915_gem_object *obj;
+ enum i915_cache_level level;
+ int ret;
+
+ ret = i915_mutex_lock_interruptible(dev);
+ if (ret)
+ return ret;
+
+ switch (args->cacheing) {
+ case I915_CACHEING_NONE:
+ level = I915_CACHE_NONE;
+ break;
+ case I915_CACHEING_CACHED:
+ level = I915_CACHE_LLC;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
+ if (&obj->base == NULL) {
+ ret = -ENOENT;
+ goto unlock;
+ }
+
+ ret = i915_gem_object_set_cache_level(obj, level);
+
+ drm_gem_object_unreference(&obj->base);
+unlock:
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+}
+
/*
* Prepare buffer for display plane (scanout, cursors, etc).
* Can be called from an uninterruptible phase (modesetting) and allows
u32 old_read_domains, old_write_domain;
int ret;
- ret = i915_gem_object_flush_gpu_write_domain(obj);
- if (ret)
- return ret;
-
if (pipelined != obj->ring) {
ret = i915_gem_object_sync(obj, pipelined);
if (ret)
/* It should now be out of any other write domains, and we can update
* the domain values for our changes.
*/
- BUG_ON((obj->base.write_domain & ~I915_GEM_DOMAIN_GTT) != 0);
+ obj->base.write_domain = 0;
obj->base.read_domains |= I915_GEM_DOMAIN_GTT;
trace_i915_gem_object_change_domain(obj,
if ((obj->base.read_domains & I915_GEM_GPU_DOMAINS) == 0)
return 0;
- if (obj->base.write_domain & I915_GEM_GPU_DOMAINS) {
- ret = i915_gem_flush_ring(obj->ring, 0, obj->base.write_domain);
- if (ret)
- return ret;
- }
-
- ret = i915_gem_object_wait_rendering(obj);
+ ret = i915_gem_object_wait_rendering(obj, false);
if (ret)
return ret;
if (obj->base.write_domain == I915_GEM_DOMAIN_CPU)
return 0;
- ret = i915_gem_object_flush_gpu_write_domain(obj);
+ ret = i915_gem_object_wait_rendering(obj, !write);
if (ret)
return ret;
- if (write || obj->pending_gpu_write) {
- ret = i915_gem_object_wait_rendering(obj);
- if (ret)
- return ret;
- }
-
i915_gem_object_flush_gtt_write_domain(obj);
old_write_domain = obj->base.write_domain;
ret = i915_gem_object_flush_active(obj);
args->busy = obj->active;
+ if (obj->ring) {
+ BUILD_BUG_ON(I915_NUM_RINGS > 16);
+ args->busy |= intel_ring_flag(obj->ring) << 16;
+ }
drm_gem_object_unreference(&obj->base);
unlock:
INIT_LIST_HEAD(&obj->gtt_list);
INIT_LIST_HEAD(&obj->ring_list);
INIT_LIST_HEAD(&obj->exec_list);
- INIT_LIST_HEAD(&obj->gpu_write_list);
obj->madv = I915_MADV_WILLNEED;
/* Avoid an unnecessary call to unbind on the first bind. */
obj->map_and_fenceable = true;
}
BUG_ON(!list_empty(&dev_priv->mm.active_list));
- BUG_ON(!list_empty(&dev_priv->mm.flushing_list));
BUG_ON(!list_empty(&dev_priv->mm.inactive_list));
mutex_unlock(&dev->struct_mutex);
{
INIT_LIST_HEAD(&ring->active_list);
INIT_LIST_HEAD(&ring->request_list);
- INIT_LIST_HEAD(&ring->gpu_write_list);
}
void
drm_i915_private_t *dev_priv = dev->dev_private;
INIT_LIST_HEAD(&dev_priv->mm.active_list);
- INIT_LIST_HEAD(&dev_priv->mm.flushing_list);
INIT_LIST_HEAD(&dev_priv->mm.inactive_list);
INIT_LIST_HEAD(&dev_priv->mm.fence_list);
INIT_LIST_HEAD(&dev_priv->mm.gtt_list);
i915_gpu_is_active(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
- int lists_empty;
-
- lists_empty = list_empty(&dev_priv->mm.flushing_list) &&
- list_empty(&dev_priv->mm.active_list);
-
- return !lists_empty;
+ return !list_empty(&dev_priv->mm.active_list);
}
static int
projects / deliverable / linux.git / blobdiff