From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Several things we can clean up in this function:
* Request and file passed in cannot be NULL. There is
a single caller which makes it impossible so change
that condition to a GEM_BUG_ON instead of a WARN
with a return code.
* Same is true for req->file_priv which is always
zeroed before this function is called.
* With the above we can remove the error return
from the function making it void.
* dev_private local variable was unused.
* Call site in i915_gem_do_execbuffer can be
simplified since there is no error handling any
longer.
v2:
* Move next to the only caller. (Chris Wilson)
* Remove useless asserts. (Joonas Lahtinen)
v3:
* Shorten name, remove last standing assert and
fix flushing after failed submit. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx> (v1)
---
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 16 ++++++++++++----
drivers/gpu/drm/i915/i915_gem_request.c | 25 -------------------------
drivers/gpu/drm/i915/i915_gem_request.h | 2 --
3 files changed, 12 insertions(+), 31 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 33c85227643d..f7b96391ff66 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1612,6 +1612,17 @@ eb_select_engine(struct drm_i915_private *dev_priv,
return engine;
}
+static void
+add_to_client(struct drm_i915_gem_request *req, struct drm_file *file)
+{
+ struct drm_i915_file_private *file_priv = file->driver_priv;
+
+ spin_lock(&file_priv->mm.lock);
+ req->file_priv = file_priv;
+ list_add_tail(&req->client_list, &file_priv->mm.request_list);
+ spin_unlock(&file_priv->mm.lock);
+}
+
static int
i915_gem_do_execbuffer(struct drm_device *dev, void *data,
struct drm_file *file,
@@ -1824,9 +1835,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
*/
params->request->batch = params->batch;
- ret = i915_gem_request_add_to_client(params->request, file);
- if (ret)
- goto err_request;
+ add_to_client(params->request, file);
/*
* Save assorted stuff away to pass through to *_submission().
@@ -1841,7 +1850,6 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
params->ctx = ctx;
ret = execbuf_submit(params, args, &eb->vmas);
-err_request:
__i915_add_request(params->request, ret == 0);
err_batch_unpin:
diff --git a/drivers/gpu/drm/i915/i915_gem_request.c b/drivers/gpu/drm/i915/i915_gem_request.c
index 40978bc12ceb..490d3a40271a 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -115,31 +115,6 @@ const struct fence_ops i915_fence_ops = {
.timeline_value_str = i915_fence_timeline_value_str,
};
-int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
- struct drm_file *file)
-{
- struct drm_i915_private *dev_private;
- struct drm_i915_file_private *file_priv;
-
- WARN_ON(!req || !file || req->file_priv);
-
- if (!req || !file)
- return -EINVAL;
-
- if (req->file_priv)
- return -EINVAL;
-
- dev_private = req->i915;
- file_priv = file->driver_priv;
-
- spin_lock(&file_priv->mm.lock);
- req->file_priv = file_priv;
- list_add_tail(&req->client_list, &file_priv->mm.request_list);
- spin_unlock(&file_priv->mm.lock);
-
- return 0;
-}
-
static inline void
i915_gem_request_remove_from_client(struct drm_i915_gem_request *request)
{
diff --git a/drivers/gpu/drm/i915/i915_gem_request.h b/drivers/gpu/drm/i915/i915_gem_request.h
index 974bd7bcc801..df1a41bbf645 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.h
+++ b/drivers/gpu/drm/i915/i915_gem_request.h
@@ -155,8 +155,6 @@ static inline bool fence_is_i915(struct fence *fence)
struct drm_i915_gem_request * __must_check
i915_gem_request_alloc(struct intel_engine_cs *engine,
struct i915_gem_context *ctx);
-int i915_gem_request_add_to_client(struct drm_i915_gem_request *req,
- struct drm_file *file);
void i915_gem_request_retire_upto(struct drm_i915_gem_request *req);
static inline u32
--
2.7.4
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