[PATCH 03/10] drm/i915: Rename and inline i915_gem_context_get()

[Chris Wilson]

i915_gem_context_get() is a very simple wrapper around idr_find(), so
simple that it would be smaller to do the lookup inline. Also we use the
verb 'lookup' to return a pointer from a handle, freeing 'get' to imply
obtaining a reference to the context.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h            | 17 +++++++++++++++--
 drivers/gpu/drm/i915/i915_gem_context.c    | 22 ++++------------------
 drivers/gpu/drm/i915/i915_gem_execbuffer.c |  2 +-
 3 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 820748d65939..e0c932054cd8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -3427,11 +3427,24 @@ void i915_gem_context_reset(struct drm_device *dev);
 int i915_gem_context_open(struct drm_device *dev, struct drm_file *file);
 void i915_gem_context_close(struct drm_device *dev, struct drm_file *file);
 int i915_switch_context(struct drm_i915_gem_request *req);
-struct i915_gem_context *
-i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id);
 void i915_gem_context_free(struct kref *ctx_ref);
 struct drm_i915_gem_object *
 i915_gem_alloc_context_obj(struct drm_device *dev, size_t size);
+
+static inline struct i915_gem_context *
+i915_gem_context_lookup(struct drm_i915_file_private *file_priv, u32 id)
+{
+	struct i915_gem_context *ctx;
+
+	lockdep_assert_held(&file_priv->dev_priv->dev->struct_mutex);
+
+	ctx = idr_find(&file_priv->context_idr, id);
+	if (!ctx)
+		return ERR_PTR(-ENOENT);
+
+	return ctx;
+}
+
 static inline void i915_gem_context_reference(struct i915_gem_context *ctx)
 {
 	kref_get(&ctx->ref);
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 6b4c5adf4b89..a3f9adb22a73 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -506,20 +506,6 @@ void i915_gem_context_close(struct drm_device *dev, struct drm_file *file)
 	idr_destroy(&file_priv->context_idr);
 }
 
-struct i915_gem_context *
-i915_gem_context_get(struct drm_i915_file_private *file_priv, u32 id)
-{
-	struct i915_gem_context *ctx;
-
-	lockdep_assert_held(&file_priv->dev_priv->dev->struct_mutex);
-
-	ctx = idr_find(&file_priv->context_idr, id);
-	if (!ctx)
-		return ERR_PTR(-ENOENT);
-
-	return ctx;
-}
-
 static inline int
 mi_set_context(struct drm_i915_gem_request *req, u32 hw_flags)
 {
@@ -951,7 +937,7 @@ int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
 	if (ret)
 		return ret;
 
-	ctx = i915_gem_context_get(file_priv, args->ctx_id);
+	ctx = i915_gem_context_lookup(file_priv, args->ctx_id);
 	if (IS_ERR(ctx)) {
 		mutex_unlock(&dev->struct_mutex);
 		return PTR_ERR(ctx);
@@ -977,7 +963,7 @@ int i915_gem_context_getparam_ioctl(struct drm_device *dev, void *data,
 	if (ret)
 		return ret;
 
-	ctx = i915_gem_context_get(file_priv, args->ctx_id);
+	ctx = i915_gem_context_lookup(file_priv, args->ctx_id);
 	if (IS_ERR(ctx)) {
 		mutex_unlock(&dev->struct_mutex);
 		return PTR_ERR(ctx);
@@ -1020,7 +1006,7 @@ int i915_gem_context_setparam_ioctl(struct drm_device *dev, void *data,
 	if (ret)
 		return ret;
 
-	ctx = i915_gem_context_get(file_priv, args->ctx_id);
+	ctx = i915_gem_context_lookup(file_priv, args->ctx_id);
 	if (IS_ERR(ctx)) {
 		mutex_unlock(&dev->struct_mutex);
 		return PTR_ERR(ctx);
@@ -1072,7 +1058,7 @@ int i915_gem_context_reset_stats_ioctl(struct drm_device *dev,
 	if (ret)
 		return ret;
 
-	ctx = i915_gem_context_get(file->driver_priv, args->ctx_id);
+	ctx = i915_gem_context_lookup(file->driver_priv, args->ctx_id);
 	if (IS_ERR(ctx)) {
 		mutex_unlock(&dev->struct_mutex);
 		return PTR_ERR(ctx);
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index e61b92d7b0bc..84d990331abd 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -1075,7 +1075,7 @@ i915_gem_validate_context(struct drm_device *dev, struct drm_file *file,
 	if (engine->id != RCS && ctx_id != DEFAULT_CONTEXT_HANDLE)
 		return ERR_PTR(-EINVAL);
 
-	ctx = i915_gem_context_get(file->driver_priv, ctx_id);
+	ctx = i915_gem_context_lookup(file->driver_priv, ctx_id);
 	if (IS_ERR(ctx))
 		return ctx;
 
-- 
2.8.1