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-rw-r--r--linux-core/i915_gem.c64
1 files changed, 36 insertions, 28 deletions
diff --git a/linux-core/i915_gem.c b/linux-core/i915_gem.c
index 4e01b8ea..ad73f0a0 100644
--- a/linux-core/i915_gem.c
+++ b/linux-core/i915_gem.c
@@ -1064,10 +1064,15 @@ i915_gem_object_check_coherency(struct drm_gem_object *obj, int handle)
}
#endif
+/**
+ * Bind an object to the GTT and evaluate the relocations landing in it
+ *
+ *
+ */
static int
-i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
- struct drm_file *file_priv,
- struct drm_i915_gem_exec_object *entry)
+i915_gem_object_bind_and_relocate(struct drm_gem_object *obj,
+ struct drm_file *file_priv,
+ struct drm_i915_gem_exec_object *entry)
{
struct drm_device *dev = obj->dev;
struct drm_i915_gem_relocation_entry reloc;
@@ -1108,7 +1113,7 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
target_obj_priv = target_obj->driver_private;
/* The target buffer should have appeared before us in the
- * validate list, so it should have a GTT space bound by now.
+ * exec_object list, so it should have a GTT space bound by now.
*/
if (target_obj_priv->gtt_space == NULL) {
DRM_ERROR("No GTT space found for object %d\n",
@@ -1242,6 +1247,8 @@ i915_gem_reloc_and_validate_object(struct drm_gem_object *obj,
return 0;
}
+/** Dispatch a batchbuffer to the ring
+ */
static int
i915_dispatch_gem_execbuffer(struct drm_device *dev,
struct drm_i915_gem_execbuffer *exec,
@@ -1346,7 +1353,7 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_i915_gem_execbuffer *args = data;
- struct drm_i915_gem_exec_object *validate_list = NULL;
+ struct drm_i915_gem_exec_object *exec_list = NULL;
struct drm_gem_object **object_list = NULL;
struct drm_gem_object *batch_obj;
int ret, i;
@@ -1365,26 +1372,26 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
if (ret)
return ret;
- /* Copy in the validate list from userland */
- validate_list = drm_calloc(sizeof(*validate_list), args->buffer_count,
- DRM_MEM_DRIVER);
+ /* Copy in the exec list from userland */
+ exec_list = drm_calloc(sizeof(*exec_list), args->buffer_count,
+ DRM_MEM_DRIVER);
object_list = drm_calloc(sizeof(*object_list), args->buffer_count,
DRM_MEM_DRIVER);
- if (validate_list == NULL || object_list == NULL) {
- DRM_ERROR("Failed to allocate validate or object list "
+ if (exec_list == NULL || object_list == NULL) {
+ DRM_ERROR("Failed to allocate exec or object list "
"for %d buffers\n",
args->buffer_count);
ret = -ENOMEM;
- goto err;
+ goto pre_mutex_err;
}
- ret = copy_from_user(validate_list,
+ ret = copy_from_user(exec_list,
(struct drm_i915_relocation_entry __user *)
(uintptr_t) args->buffers_ptr,
- sizeof(*validate_list) * args->buffer_count);
+ sizeof(*exec_list) * args->buffer_count);
if (ret != 0) {
- DRM_ERROR("copy %d validate entries failed %d\n",
+ DRM_ERROR("copy %d exec entries failed %d\n",
args->buffer_count, ret);
- goto err;
+ goto pre_mutex_err;
}
mutex_lock(&dev->struct_mutex);
@@ -1399,21 +1406,21 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
/* Look up object handles and perform the relocations */
for (i = 0; i < args->buffer_count; i++) {
object_list[i] = drm_gem_object_lookup(dev, file_priv,
- validate_list[i].handle);
+ exec_list[i].handle);
if (object_list[i] == NULL) {
DRM_ERROR("Invalid object handle %d at index %d\n",
- validate_list[i].handle, i);
+ exec_list[i].handle, i);
ret = -EINVAL;
goto err;
}
object_list[i]->pending_read_domains = 0;
object_list[i]->pending_write_domain = 0;
- ret = i915_gem_reloc_and_validate_object(object_list[i],
- file_priv,
- &validate_list[i]);
+ ret = i915_gem_object_bind_and_relocate(object_list[i],
+ file_priv,
+ &exec_list[i]);
if (ret) {
- DRM_ERROR("reloc and validate failed %d\n", ret);
+ DRM_ERROR("object bind and relocate failed %d\n", ret);
goto err;
}
}
@@ -1451,11 +1458,11 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
#if WATCH_COHERENCY
for (i = 0; i < args->buffer_count; i++) {
i915_gem_object_check_coherency(object_list[i],
- validate_list[i].handle);
+ exec_list[i].handle);
}
#endif
- exec_offset = validate_list[args->buffer_count - 1].offset;
+ exec_offset = exec_list[args->buffer_count - 1].offset;
#if WATCH_EXEC
i915_gem_dump_object(object_list[args->buffer_count - 1],
@@ -1500,13 +1507,13 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
i915_dump_lru(dev, __func__);
#endif
- /* Copy the new buffer offsets back to the user's validate list. */
+ /* Copy the new buffer offsets back to the user's exec list. */
ret = copy_to_user((struct drm_i915_relocation_entry __user *)
(uintptr_t) args->buffers_ptr,
- validate_list,
- sizeof(*validate_list) * args->buffer_count);
+ exec_list,
+ sizeof(*exec_list) * args->buffer_count);
if (ret)
- DRM_ERROR("failed to copy %d validate entries "
+ DRM_ERROR("failed to copy %d exec entries "
"back to user (%d)\n",
args->buffer_count, ret);
err:
@@ -1516,9 +1523,10 @@ err:
}
mutex_unlock(&dev->struct_mutex);
+pre_mutex_err:
drm_free(object_list, sizeof(*object_list) * args->buffer_count,
DRM_MEM_DRIVER);
- drm_free(validate_list, sizeof(*validate_list) * args->buffer_count,
+ drm_free(exec_list, sizeof(*exec_list) * args->buffer_count,
DRM_MEM_DRIVER);
return ret;
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 04:40:23 +0000