static int i915_gem_shrinker_oom(struct notifier_block *nb,
unsigned long event,
void *ptr);
-static unsigned long i915_gem_purge(struct drm_i915_private *dev_priv, long target);
static unsigned long i915_gem_shrink_all(struct drm_i915_private *dev_priv);
static bool cpu_cache_is_coherent(struct drm_device *dev,
if (i915_terminally_wedged(error))
return -EIO;
- return -EAGAIN;
+ /*
+ * Check if GPU Reset is in progress - we need intel_ring_begin
+ * to work properly to reinit the hw state while the gpu is
+ * still marked as reset-in-progress. Handle this with a flag.
+ */
+ if (!error->reload_in_reset)
+ return -EAGAIN;
}
return 0;
* offsets on purgeable objects by truncating it and marking it purged,
* which prevents userspace from ever using that object again.
*/
- i915_gem_purge(dev_priv, obj->base.size >> PAGE_SHIFT);
+ i915_gem_shrink(dev_priv,
+ obj->base.size >> PAGE_SHIFT,
+ I915_SHRINK_BOUND |
+ I915_SHRINK_UNBOUND |
+ I915_SHRINK_PURGEABLE);
ret = drm_gem_create_mmap_offset(&obj->base);
if (ret != -ENOSPC)
goto out;
return 0;
}
-static unsigned long
-__i915_gem_shrink(struct drm_i915_private *dev_priv, long target,
- bool purgeable_only)
+unsigned long
+i915_gem_shrink(struct drm_i915_private *dev_priv,
+ long target, unsigned flags)
{
- struct list_head still_in_list;
- struct drm_i915_gem_object *obj;
+ const bool purgeable_only = flags & I915_SHRINK_PURGEABLE;
unsigned long count = 0;
/*
* dev->struct_mutex and so we won't ever be able to observe an
* object on the bound_list with a reference count equals 0.
*/
- INIT_LIST_HEAD(&still_in_list);
- while (count < target && !list_empty(&dev_priv->mm.unbound_list)) {
- obj = list_first_entry(&dev_priv->mm.unbound_list,
- typeof(*obj), global_list);
- list_move_tail(&obj->global_list, &still_in_list);
+ if (flags & I915_SHRINK_UNBOUND) {
+ struct list_head still_in_list;
- if (!i915_gem_object_is_purgeable(obj) && purgeable_only)
- continue;
+ INIT_LIST_HEAD(&still_in_list);
+ while (count < target && !list_empty(&dev_priv->mm.unbound_list)) {
+ struct drm_i915_gem_object *obj;
- drm_gem_object_reference(&obj->base);
+ obj = list_first_entry(&dev_priv->mm.unbound_list,
+ typeof(*obj), global_list);
+ list_move_tail(&obj->global_list, &still_in_list);
- if (i915_gem_object_put_pages(obj) == 0)
- count += obj->base.size >> PAGE_SHIFT;
+ if (!i915_gem_object_is_purgeable(obj) && purgeable_only)
+ continue;
- drm_gem_object_unreference(&obj->base);
+ drm_gem_object_reference(&obj->base);
+
+ if (i915_gem_object_put_pages(obj) == 0)
+ count += obj->base.size >> PAGE_SHIFT;
+
+ drm_gem_object_unreference(&obj->base);
+ }
+ list_splice(&still_in_list, &dev_priv->mm.unbound_list);
}
- list_splice(&still_in_list, &dev_priv->mm.unbound_list);
- INIT_LIST_HEAD(&still_in_list);
- while (count < target && !list_empty(&dev_priv->mm.bound_list)) {
- struct i915_vma *vma, *v;
+ if (flags & I915_SHRINK_BOUND) {
+ struct list_head still_in_list;
- obj = list_first_entry(&dev_priv->mm.bound_list,
- typeof(*obj), global_list);
- list_move_tail(&obj->global_list, &still_in_list);
+ INIT_LIST_HEAD(&still_in_list);
+ while (count < target && !list_empty(&dev_priv->mm.bound_list)) {
+ struct drm_i915_gem_object *obj;
+ struct i915_vma *vma, *v;
- if (!i915_gem_object_is_purgeable(obj) && purgeable_only)
- continue;
+ obj = list_first_entry(&dev_priv->mm.bound_list,
+ typeof(*obj), global_list);
+ list_move_tail(&obj->global_list, &still_in_list);
- drm_gem_object_reference(&obj->base);
+ if (!i915_gem_object_is_purgeable(obj) && purgeable_only)
+ continue;
- list_for_each_entry_safe(vma, v, &obj->vma_list, vma_link)
- if (i915_vma_unbind(vma))
- break;
+ drm_gem_object_reference(&obj->base);
- if (i915_gem_object_put_pages(obj) == 0)
- count += obj->base.size >> PAGE_SHIFT;
+ list_for_each_entry_safe(vma, v, &obj->vma_list, vma_link)
+ if (i915_vma_unbind(vma))
+ break;
- drm_gem_object_unreference(&obj->base);
+ if (i915_gem_object_put_pages(obj) == 0)
+ count += obj->base.size >> PAGE_SHIFT;
+
+ drm_gem_object_unreference(&obj->base);
+ }
+ list_splice(&still_in_list, &dev_priv->mm.bound_list);
}
- list_splice(&still_in_list, &dev_priv->mm.bound_list);
return count;
}
-static unsigned long
-i915_gem_purge(struct drm_i915_private *dev_priv, long target)
-{
- return __i915_gem_shrink(dev_priv, target, true);
-}
-
static unsigned long
i915_gem_shrink_all(struct drm_i915_private *dev_priv)
{
i915_gem_evict_everything(dev_priv->dev);
- return __i915_gem_shrink(dev_priv, LONG_MAX, false);
+ return i915_gem_shrink(dev_priv, LONG_MAX,
+ I915_SHRINK_BOUND | I915_SHRINK_UNBOUND);
}
static int
for (i = 0; i < page_count; i++) {
page = shmem_read_mapping_page_gfp(mapping, i, gfp);
if (IS_ERR(page)) {
- i915_gem_purge(dev_priv, page_count);
+ i915_gem_shrink(dev_priv,
+ page_count,
+ I915_SHRINK_BOUND |
+ I915_SHRINK_UNBOUND |
+ I915_SHRINK_PURGEABLE);
page = shmem_read_mapping_page_gfp(mapping, i, gfp);
}
if (IS_ERR(page)) {
i915_gem_object_move_to_active(struct drm_i915_gem_object *obj,
struct intel_engine_cs *ring)
{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
u32 seqno = intel_ring_get_seqno(ring);
BUG_ON(ring == NULL);
list_move_tail(&obj->ring_list, &ring->active_list);
obj->last_read_seqno = seqno;
-
- if (obj->fenced_gpu_access) {
- obj->last_fenced_seqno = seqno;
-
- /* Bump MRU to take account of the delayed flush */
- if (obj->fence_reg != I915_FENCE_REG_NONE) {
- struct drm_i915_fence_reg *reg;
-
- reg = &dev_priv->fence_regs[obj->fence_reg];
- list_move_tail(®->lru_list,
- &dev_priv->mm.fence_list);
- }
- }
}
void i915_vma_move_to_active(struct i915_vma *vma,
obj->base.write_domain = 0;
obj->last_fenced_seqno = 0;
- obj->fenced_gpu_access = false;
obj->active = 0;
drm_gem_object_unreference(&obj->base);
{
struct drm_i915_private *dev_priv = ring->dev->dev_private;
struct drm_i915_gem_request *request;
+ struct intel_ringbuffer *ringbuf;
u32 request_ring_position, request_start;
int ret;
- request_start = intel_ring_get_tail(ring->buffer);
+ request = ring->preallocated_lazy_request;
+ if (WARN_ON(request == NULL))
+ return -ENOMEM;
+
+ if (i915.enable_execlists) {
+ struct intel_context *ctx = request->ctx;
+ ringbuf = ctx->engine[ring->id].ringbuf;
+ } else
+ ringbuf = ring->buffer;
+
+ request_start = intel_ring_get_tail(ringbuf);
/*
* Emit any outstanding flushes - execbuf can fail to emit the flush
* after having emitted the batchbuffer command. Hence we need to fix
* is that the flush _must_ happen before the next request, no matter
* what.
*/
- ret = intel_ring_flush_all_caches(ring);
- if (ret)
- return ret;
-
- request = ring->preallocated_lazy_request;
- if (WARN_ON(request == NULL))
- return -ENOMEM;
+ if (i915.enable_execlists) {
+ ret = logical_ring_flush_all_caches(ringbuf);
+ if (ret)
+ return ret;
+ } else {
+ ret = intel_ring_flush_all_caches(ring);
+ if (ret)
+ return ret;
+ }
/* Record the position of the start of the request so that
* should we detect the updated seqno part-way through the
* GPU processing the request, we never over-estimate the
* position of the head.
*/
- request_ring_position = intel_ring_get_tail(ring->buffer);
+ request_ring_position = intel_ring_get_tail(ringbuf);
- ret = ring->add_request(ring);
- if (ret)
- return ret;
+ if (i915.enable_execlists) {
+ ret = ring->emit_request(ringbuf);
+ if (ret)
+ return ret;
+ } else {
+ ret = ring->add_request(ring);
+ if (ret)
+ return ret;
+ }
request->seqno = intel_ring_get_seqno(ring);
request->ring = ring;
*/
request->batch_obj = obj;
- /* Hold a reference to the current context so that we can inspect
- * it later in case a hangcheck error event fires.
- */
- request->ctx = ring->last_context;
- if (request->ctx)
- i915_gem_context_reference(request->ctx);
+ if (!i915.enable_execlists) {
+ /* Hold a reference to the current context so that we can inspect
+ * it later in case a hangcheck error event fires.
+ */
+ request->ctx = ring->last_context;
+ if (request->ctx)
+ i915_gem_context_reference(request->ctx);
+ }
request->emitted_jiffies = jiffies;
list_add_tail(&request->list, &ring->request_list);
i915_gem_free_request(request);
}
+ while (!list_empty(&ring->execlist_queue)) {
+ struct intel_ctx_submit_request *submit_req;
+
+ submit_req = list_first_entry(&ring->execlist_queue,
+ struct intel_ctx_submit_request,
+ execlist_link);
+ list_del(&submit_req->execlist_link);
+ intel_runtime_pm_put(dev_priv);
+ i915_gem_context_unreference(submit_req->ctx);
+ kfree(submit_req);
+ }
+
/* These may not have been flush before the reset, do so now */
kfree(ring->preallocated_lazy_request);
ring->preallocated_lazy_request = NULL;
while (!list_empty(&ring->request_list)) {
struct drm_i915_gem_request *request;
+ struct intel_ringbuffer *ringbuf;
request = list_first_entry(&ring->request_list,
struct drm_i915_gem_request,
break;
trace_i915_gem_request_retire(ring, request->seqno);
+
+ /* This is one of the few common intersection points
+ * between legacy ringbuffer submission and execlists:
+ * we need to tell them apart in order to find the correct
+ * ringbuffer to which the request belongs to.
+ */
+ if (i915.enable_execlists) {
+ struct intel_context *ctx = request->ctx;
+ ringbuf = ctx->engine[ring->id].ringbuf;
+ } else
+ ringbuf = ring->buffer;
+
/* We know the GPU must have read the request to have
* sent us the seqno + interrupt, so use the position
* of tail of the request to update the last known position
* of the GPU head.
*/
- ring->buffer->last_retired_head = request->tail;
+ ringbuf->last_retired_head = request->tail;
i915_gem_free_request(request);
}
* cause memory corruption through use-after-free.
*/
+ /* Throw away the active reference before moving to the unbound list */
+ i915_gem_object_retire(obj);
+
if (i915_is_ggtt(vma->vm)) {
i915_gem_object_finish_gtt(obj);
vma->unbind_vma(vma);
list_del_init(&vma->mm_list);
- /* Avoid an unnecessary call to unbind on rebind. */
if (i915_is_ggtt(vma->vm))
- obj->map_and_fenceable = true;
+ obj->map_and_fenceable = false;
drm_mm_remove_node(&vma->node);
i915_gem_vma_destroy(vma);
/* Flush everything onto the inactive list. */
for_each_ring(ring, dev_priv, i) {
- ret = i915_switch_context(ring, ring->default_context);
- if (ret)
- return ret;
+ if (!i915.enable_execlists) {
+ ret = i915_switch_context(ring, ring->default_context);
+ if (ret)
+ return ret;
+ }
ret = intel_ring_idle(ring);
if (ret)
obj->last_fenced_seqno = 0;
}
- obj->fenced_gpu_access = false;
return 0;
}
return 0;
}
} else if (enable) {
+ if (WARN_ON(!obj->map_and_fenceable))
+ return -EINVAL;
+
reg = i915_find_fence_reg(dev);
if (IS_ERR(reg))
return PTR_ERR(reg);
return 0;
}
-static bool i915_gem_valid_gtt_space(struct drm_device *dev,
- struct drm_mm_node *gtt_space,
+static bool i915_gem_valid_gtt_space(struct i915_vma *vma,
unsigned long cache_level)
{
+ struct drm_mm_node *gtt_space = &vma->node;
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 dying.
+ /*
+ * On some machines we have to be careful when putting differing types
+ * of snoopable memory together to avoid the prefetcher crossing memory
+ * domains and dying. During vm initialisation, we decide whether or not
+ * these constraints apply and set the drm_mm.color_adjust
+ * appropriately.
*/
- if (HAS_LLC(dev))
+ if (vma->vm->mm.color_adjust == NULL)
return true;
if (!drm_mm_node_allocated(gtt_space))
goto err_free_vma;
}
- if (WARN_ON(!i915_gem_valid_gtt_space(dev, &vma->node,
- obj->cache_level))) {
+ if (WARN_ON(!i915_gem_valid_gtt_space(vma, obj->cache_level))) {
ret = -EINVAL;
goto err_remove_node;
}
i915_gem_object_set_to_gtt_domain(struct drm_i915_gem_object *obj, bool write)
{
struct drm_i915_private *dev_priv = obj->base.dev->dev_private;
+ struct i915_vma *vma = i915_gem_obj_to_ggtt(obj);
uint32_t old_write_domain, old_read_domains;
int ret;
/* Not valid to be called on unbound objects. */
- if (!i915_gem_obj_bound_any(obj))
+ if (vma == NULL)
return -EINVAL;
if (obj->base.write_domain == I915_GEM_DOMAIN_GTT)
old_write_domain);
/* And bump the LRU for this access */
- if (i915_gem_object_is_inactive(obj)) {
- struct i915_vma *vma = i915_gem_obj_to_ggtt(obj);
- if (vma)
- list_move_tail(&vma->mm_list,
- &dev_priv->gtt.base.inactive_list);
-
- }
+ if (i915_gem_object_is_inactive(obj))
+ list_move_tail(&vma->mm_list,
+ &dev_priv->gtt.base.inactive_list);
return 0;
}
}
list_for_each_entry_safe(vma, next, &obj->vma_list, vma_link) {
- if (!i915_gem_valid_gtt_space(dev, &vma->node, cache_level)) {
+ if (!i915_gem_valid_gtt_space(vma, cache_level)) {
ret = i915_vma_unbind(vma);
if (ret)
return ret;
{
struct i915_vma *vma;
- if (list_empty(&obj->vma_list))
- return false;
-
vma = i915_gem_obj_to_ggtt(obj);
if (!vma)
return false;
obj->fence_reg = I915_FENCE_REG_NONE;
obj->madv = I915_MADV_WILLNEED;
- /* Avoid an unnecessary call to unbind on the first bind. */
- obj->map_and_fenceable = true;
i915_gem_info_add_obj(obj->base.dev->dev_private, obj->base.size);
}
void i915_gem_vma_destroy(struct i915_vma *vma)
{
+ struct i915_address_space *vm = NULL;
WARN_ON(vma->node.allocated);
/* Keep the vma as a placeholder in the execbuffer reservation lists */
if (!list_empty(&vma->exec_list))
return;
+ vm = vma->vm;
+
+ if (!i915_is_ggtt(vm))
+ i915_ppgtt_put(i915_vm_to_ppgtt(vm));
+
list_del(&vma->vma_link);
kfree(vma);
int i;
for_each_ring(ring, dev_priv, i)
- intel_stop_ring_buffer(ring);
+ dev_priv->gt.stop_ring(ring);
}
int
return true;
}
-static int i915_gem_init_rings(struct drm_device *dev)
+static void init_unused_ring(struct drm_device *dev, u32 base)
+{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ I915_WRITE(RING_CTL(base), 0);
+ I915_WRITE(RING_HEAD(base), 0);
+ I915_WRITE(RING_TAIL(base), 0);
+ I915_WRITE(RING_START(base), 0);
+}
+
+static void init_unused_rings(struct drm_device *dev)
+{
+ if (IS_I830(dev)) {
+ init_unused_ring(dev, PRB1_BASE);
+ init_unused_ring(dev, SRB0_BASE);
+ init_unused_ring(dev, SRB1_BASE);
+ init_unused_ring(dev, SRB2_BASE);
+ init_unused_ring(dev, SRB3_BASE);
+ } else if (IS_GEN2(dev)) {
+ init_unused_ring(dev, SRB0_BASE);
+ init_unused_ring(dev, SRB1_BASE);
+ } else if (IS_GEN3(dev)) {
+ init_unused_ring(dev, PRB1_BASE);
+ init_unused_ring(dev, PRB2_BASE);
+ }
+}
+
+int i915_gem_init_rings(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
+ /*
+ * At least 830 can leave some of the unused rings
+ * "active" (ie. head != tail) after resume which
+ * will prevent c3 entry. Makes sure all unused rings
+ * are totally idle.
+ */
+ init_unused_rings(dev);
+
ret = intel_init_render_ring_buffer(dev);
if (ret)
return ret;
i915_gem_init_swizzling(dev);
- ret = i915_gem_init_rings(dev);
+ ret = dev_priv->gt.init_rings(dev);
if (ret)
return ret;
if (ret && ret != -EIO) {
DRM_ERROR("Context enable failed %d\n", ret);
i915_gem_cleanup_ringbuffer(dev);
+
+ return ret;
+ }
+
+ ret = i915_ppgtt_init_hw(dev);
+ if (ret && ret != -EIO) {
+ DRM_ERROR("PPGTT enable failed %d\n", ret);
+ i915_gem_cleanup_ringbuffer(dev);
}
return ret;
struct drm_i915_private *dev_priv = dev->dev_private;
int ret;
+ i915.enable_execlists = intel_sanitize_enable_execlists(dev,
+ i915.enable_execlists);
+
mutex_lock(&dev->struct_mutex);
if (IS_VALLEYVIEW(dev)) {
DRM_DEBUG_DRIVER("allow wake ack timed out\n");
}
- i915_gem_init_userptr(dev);
+ if (!i915.enable_execlists) {
+ dev_priv->gt.do_execbuf = i915_gem_ringbuffer_submission;
+ dev_priv->gt.init_rings = i915_gem_init_rings;
+ dev_priv->gt.cleanup_ring = intel_cleanup_ring_buffer;
+ dev_priv->gt.stop_ring = intel_stop_ring_buffer;
+ } else {
+ dev_priv->gt.do_execbuf = intel_execlists_submission;
+ dev_priv->gt.init_rings = intel_logical_rings_init;
+ dev_priv->gt.cleanup_ring = intel_logical_ring_cleanup;
+ dev_priv->gt.stop_ring = intel_logical_ring_stop;
+ }
+
+ ret = i915_gem_init_userptr(dev);
+ if (ret) {
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
+
i915_gem_init_global_gtt(dev);
ret = i915_gem_context_init(dev);
int i;
for_each_ring(ring, dev_priv, i)
- intel_cleanup_ring_buffer(ring);
+ dev_priv->gt.cleanup_ring(ring);
}
int
struct drm_i915_private *dev_priv = o->base.dev->dev_private;
struct i915_vma *vma;
- if (!dev_priv->mm.aliasing_ppgtt ||
- vm == &dev_priv->mm.aliasing_ppgtt->base)
- vm = &dev_priv->gtt.base;
+ WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base);
list_for_each_entry(vma, &o->vma_list, vma_link) {
if (vma->vm == vm)
struct drm_i915_private *dev_priv = o->base.dev->dev_private;
struct i915_vma *vma;
- if (!dev_priv->mm.aliasing_ppgtt ||
- vm == &dev_priv->mm.aliasing_ppgtt->base)
- vm = &dev_priv->gtt.base;
+ WARN_ON(vm == &dev_priv->mm.aliasing_ppgtt->base);
BUG_ON(list_empty(&o->vma_list));
if (!i915_gem_shrinker_lock(dev, &unlock))
return SHRINK_STOP;
- freed = i915_gem_purge(dev_priv, sc->nr_to_scan);
+ freed = i915_gem_shrink(dev_priv,
+ sc->nr_to_scan,
+ I915_SHRINK_BOUND |
+ I915_SHRINK_UNBOUND |
+ I915_SHRINK_PURGEABLE);
if (freed < sc->nr_to_scan)
- freed += __i915_gem_shrink(dev_priv,
- sc->nr_to_scan - freed,
- false);
+ freed += i915_gem_shrink(dev_priv,
+ sc->nr_to_scan - freed,
+ I915_SHRINK_BOUND |
+ I915_SHRINK_UNBOUND);
if (unlock)
mutex_unlock(&dev->struct_mutex);
{
struct i915_vma *vma;
- /* This WARN has probably outlived its usefulness (callers already
- * WARN if they don't find the GGTT vma they expect). When removing,
- * remember to remove the pre-check in is_pin_display() as well */
- if (WARN_ON(list_empty(&obj->vma_list)))
- return NULL;
-
vma = list_first_entry(&obj->vma_list, typeof(*vma), vma_link);
- if (vma->vm != obj_to_ggtt(obj))
+ if (vma->vm != i915_obj_to_ggtt(obj))
return NULL;
return vma;
projects / cascardo / linux.git / blobdiff