Just move it earlier so that we can use the companion nonblocking
version in a couple of more callsites without having to add a forward
declaration.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 204 ++++++++++++++++++++--------------------
1 file changed, 103 insertions(+), 101 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index ce422e0dce8f..852a14468804 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -302,6 +302,109 @@ i915_gem_object_unbind(struct drm_i915_gem_object *obj)
return ret;
}
+/**
+ * Ensures that all rendering to the object has completed and the object is
+ * safe to unbind from the GTT or access from the CPU.
+ * @obj: i915 gem object
+ * @readonly: waiting for just read access or read-write access
+ */
+int
+i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
+ bool readonly)
+{
+ struct reservation_object *resv;
+ struct i915_gem_active *active;
+ unsigned long active_mask;
+ int idx;
+
+ lockdep_assert_held(&obj->base.dev->struct_mutex);
+
+ if (!readonly) {
+ active = obj->last_read;
+ active_mask = i915_gem_object_get_active(obj);
+ } else {
+ active_mask = 1;
+ active = &obj->last_write;
+ }
+
+ for_each_active(active_mask, idx) {
+ int ret;
+
+ ret = i915_gem_active_wait(&active[idx],
+ &obj->base.dev->struct_mutex);
+ if (ret)
+ return ret;
+ }
+
+ resv = i915_gem_object_get_dmabuf_resv(obj);
+ if (resv) {
+ long err;
+
+ err = reservation_object_wait_timeout_rcu(resv, !readonly, true,
+ MAX_SCHEDULE_TIMEOUT);
+ if (err < 0)
+ return err;
+ }
+
+ return 0;
+}
+
+/* A nonblocking variant of the above wait. This is a highly dangerous routine
+ * as the object state may change during this call.
+ */
+static __must_check int
+i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj,
+ struct intel_rps_client *rps,
+ bool readonly)
+{
+ struct drm_device *dev = obj->base.dev;
+ struct drm_i915_gem_request *requests[I915_NUM_ENGINES];
+ struct i915_gem_active *active;
+ unsigned long active_mask;
+ int ret, i, n = 0;
+
+ lockdep_assert_held(&dev->struct_mutex);
+ GEM_BUG_ON(!to_i915(dev)->mm.interruptible);
+
+ active_mask = i915_gem_object_get_active(obj);
+ if (!active_mask)
+ return 0;
+
+ if (!readonly) {
+ active = obj->last_read;
+ } else {
+ active_mask = 1;
+ active = &obj->last_write;
+ }
+
+ for_each_active(active_mask, i) {
+ struct drm_i915_gem_request *req;
+
+ req = i915_gem_active_get(&active[i],
+ &obj->base.dev->struct_mutex);
+ if (req)
+ requests[n++] = req;
+ }
+
+ mutex_unlock(&dev->struct_mutex);
+ ret = 0;
+ for (i = 0; ret == 0 && i < n; i++)
+ ret = i915_wait_request(requests[i], true, NULL, rps);
+ mutex_lock(&dev->struct_mutex);
+
+ for (i = 0; i < n; i++)
+ i915_gem_request_put(requests[i]);
+
+ return ret;
+}
+
+static struct intel_rps_client *to_rps_client(struct drm_file *file)
+{
+ struct drm_i915_file_private *fpriv = file->driver_priv;
+
+ return &fpriv->rps;
+}
+
int
i915_gem_object_attach_phys(struct drm_i915_gem_object *obj,
int align)
@@ -1339,107 +1442,6 @@ put_rpm:
return ret;
}
-/**
- * Ensures that all rendering to the object has completed and the object is
- * safe to unbind from the GTT or access from the CPU.
- * @obj: i915 gem object
- * @readonly: waiting for read access or write
- */
-int
-i915_gem_object_wait_rendering(struct drm_i915_gem_object *obj,
- bool readonly)
-{
- struct reservation_object *resv;
- struct i915_gem_active *active;
- unsigned long active_mask;
- int idx, ret;
-
- lockdep_assert_held(&obj->base.dev->struct_mutex);
-
- if (!readonly) {
- active = obj->last_read;
- active_mask = i915_gem_object_get_active(obj);
- } else {
- active_mask = 1;
- active = &obj->last_write;
- }
-
- for_each_active(active_mask, idx) {
- ret = i915_gem_active_wait(&active[idx],
- &obj->base.dev->struct_mutex);
- if (ret)
- return ret;
- }
-
- resv = i915_gem_object_get_dmabuf_resv(obj);
- if (resv) {
- long err;
-
- err = reservation_object_wait_timeout_rcu(resv, !readonly, true,
- MAX_SCHEDULE_TIMEOUT);
- if (err < 0)
- return err;
- }
-
- return 0;
-}
-
-/* A nonblocking variant of the above wait. This is a highly dangerous routine
- * as the object state may change during this call.
- */
-static __must_check int
-i915_gem_object_wait_rendering__nonblocking(struct drm_i915_gem_object *obj,
- struct intel_rps_client *rps,
- bool readonly)
-{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = to_i915(dev);
- struct drm_i915_gem_request *requests[I915_NUM_ENGINES];
- struct i915_gem_active *active;
- unsigned long active_mask;
- int ret, i, n = 0;
-
- BUG_ON(!mutex_is_locked(&dev->struct_mutex));
- BUG_ON(!dev_priv->mm.interruptible);
-
- active_mask = i915_gem_object_get_active(obj);
- if (!active_mask)
- return 0;
-
- if (!readonly) {
- active = obj->last_read;
- } else {
- active_mask = 1;
- active = &obj->last_write;
- }
-
- for_each_active(active_mask, i) {
- struct drm_i915_gem_request *req;
-
- req = i915_gem_active_get(&active[i],
- &obj->base.dev->struct_mutex);
- if (req)
- requests[n++] = req;
- }
-
- mutex_unlock(&dev->struct_mutex);
- ret = 0;
- for (i = 0; ret == 0 && i < n; i++)
- ret = i915_wait_request(requests[i], true, NULL, rps);
- mutex_lock(&dev->struct_mutex);
-
- for (i = 0; i < n; i++)
- i915_gem_request_put(requests[i]);
-
- return ret;
-}
-
-static struct intel_rps_client *to_rps_client(struct drm_file *file)
-{
- struct drm_i915_file_private *fpriv = file->driver_priv;
- return &fpriv->rps;
-}
-
static enum fb_op_origin
write_origin(struct drm_i915_gem_object *obj, unsigned domain)
{
--
2.8.1
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