static struct i915_hw_context *
create_hw_context(struct drm_device *dev,
struct drm_i915_file_private *file_priv)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct i915_hw_context *ctx;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (ctx == NULL)
return ERR_PTR(-ENOMEM);
kref_init(&ctx->ref);
ctx->obj = i915_gem_alloc_object(dev, dev_priv->hw_context_size);
INIT_LIST_HEAD(&ctx->link);
if (ctx->obj == NULL) {
kfree(ctx);
DRM_DEBUG_DRIVER("Context object allocated failed\n");
return ERR_PTR(-ENOMEM);
}
if (INTEL_INFO(dev)->gen >= 7) {
ret = i915_gem_object_set_cache_level(ctx->obj,
I915_CACHE_L3_LLC);
/* Failure shouldn't ever happen this early */
if (WARN_ON(ret))
goto err_out;
}
/* The ring associated with the context object is handled by the normal
* object tracking code. We give an initial ring value simple to pass an
* assertion in the context switch code.
*/
ctx->ring = &dev_priv->ring[RCS];
list_add_tail(&ctx->link, &dev_priv->context_list);
/* Default context will never have a file_priv */
if (file_priv == NULL)
return ctx;
ret = idr_alloc(&file_priv->context_idr, ctx, DEFAULT_CONTEXT_ID + 1, 0,
GFP_KERNEL);
if (ret < 0)
goto err_out;
ctx->file_priv = file_priv;
ctx->id = ret;
/* NB: Mark all slices as needing a remap so that when the context first
* loads it will restore whatever remap state already exists. If there
* is no remap info, it will be a NOP. */
ctx->remap_slice = (1 << NUM_L3_SLICES(dev)) - 1;
return ctx;
err_out:
i915_gem_context_unreference(ctx);
return ERR_PTR(ret);
}
static struct intel_context *
__create_hw_context(struct drm_device *dev,
struct drm_i915_file_private *file_priv)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_context *ctx;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (ctx == NULL)
return ERR_PTR(-ENOMEM);
kref_init(&ctx->ref);
list_add_tail(&ctx->link, &dev_priv->context_list);
if (dev_priv->hw_context_size) {
struct drm_i915_gem_object *obj =
i915_gem_alloc_context_obj(dev, dev_priv->hw_context_size);
if (IS_ERR(obj)) {
ret = PTR_ERR(obj);
goto err_out;
}
ctx->legacy_hw_ctx.rcs_state = obj;
}
/* Default context will never have a file_priv */
if (file_priv != NULL) {
ret = idr_alloc(&file_priv->context_idr, ctx,
DEFAULT_CONTEXT_HANDLE, 0, GFP_KERNEL);
if (ret < 0)
goto err_out;
} else
ret = DEFAULT_CONTEXT_HANDLE;
ctx->file_priv = file_priv;
ctx->user_handle = ret;
/* NB: Mark all slices as needing a remap so that when the context first
* loads it will restore whatever remap state already exists. If there
* is no remap info, it will be a NOP. */
ctx->remap_slice = (1 << NUM_L3_SLICES(dev)) - 1;
return ctx;
err_out:
i915_gem_context_unreference(ctx);
return ERR_PTR(ret);
}
