drm/i915: Use i915_global_register()

Rather than manually add every new global into each hook, use
i915_global_register() function and keep a list of registered globals to
invoke instead.

However, I haven't found a way for random drivers to add an .init table
to avoid having to manually add ourselves to i915_globals_init() each
time.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190305213830.18094-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>

1 files changed, 20 insertions, 12 deletions

diff --git a/drivers/gpu/drm/i915/i915_scheduler.c b/drivers/gpu/drm/i915/i915_scheduler.c
index 3f0a4d56bd37..e0f609d01564 100644
--- a/drivers/gpu/drm/i915/i915_scheduler.c
+++ b/drivers/gpu/drm/i915/i915_scheduler.c
@@ -7,10 +7,12 @@
 #include <linux/mutex.h>
 
 #include "i915_drv.h"
+#include "i915_globals.h"
 #include "i915_request.h"
 #include "i915_scheduler.h"
 
 static struct i915_global_scheduler {
+	struct i915_global base;
 	struct kmem_cache *slab_dependencies;
 	struct kmem_cache *slab_priorities;
 } global;
@@ -437,6 +439,23 @@ void __i915_priolist_free(struct i915_priolist *p)
 	kmem_cache_free(global.slab_priorities, p);
 }
 
+static void i915_global_scheduler_shrink(void)
+{
+	kmem_cache_shrink(global.slab_dependencies);
+	kmem_cache_shrink(global.slab_priorities);
+}
+
+static void i915_global_scheduler_exit(void)
+{
+	kmem_cache_destroy(global.slab_dependencies);
+	kmem_cache_destroy(global.slab_priorities);
+}
+
+static struct i915_global_scheduler global = { {
+	.shrink = i915_global_scheduler_shrink,
+	.exit = i915_global_scheduler_exit,
+} };
+
 int __init i915_global_scheduler_init(void)
 {
 	global.slab_dependencies = KMEM_CACHE(i915_dependency,
@@ -449,21 +468,10 @@ int __init i915_global_scheduler_init(void)
 	if (!global.slab_priorities)
 		goto err_priorities;
 
+	i915_global_register(&global.base);
 	return 0;
 
 err_priorities:
 	kmem_cache_destroy(global.slab_priorities);
 	return -ENOMEM;
 }
-
-void i915_global_scheduler_shrink(void)
-{
-	kmem_cache_shrink(global.slab_dependencies);
-	kmem_cache_shrink(global.slab_priorities);
-}
-
-void i915_global_scheduler_exit(void)
-{
-	kmem_cache_destroy(global.slab_dependencies);
-	kmem_cache_destroy(global.slab_priorities);
-}