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Commit 7caa63c0 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/nvif: fix a number of notify thinkos 



Note to self: more sleep

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 27111a23

drivers/gpu/drm/nouveau/core/core/client.c

+2 −2
Original line number Diff line number Diff line
@@ -132,12 +132,12 @@ nvkm_client_notify_new(struct nouveau_client *client, 
		if (ret == 0) {

			client->notify[index] = notify;

			notify->client = client;

			return 0;

			return index;

		}

	}



	kfree(notify);

	return 0;

	return ret;

}



static int

drivers/gpu/drm/nouveau/core/include/core/client.h

+1 −1
Original line number Diff line number Diff line
@@ -14,7 +14,7 @@ struct nouveau_client { 
	void *data;



	int (*ntfy)(const void *, u32, const void *, u32);

	struct nvkm_client_notify *notify[8];

	struct nvkm_client_notify *notify[16];

};



static inline struct nouveau_client *

drivers/gpu/drm/nouveau/nvif/notify.c

+17 −8
Original line number Diff line number Diff line
@@ -87,12 +87,25 @@ nvif_notify_get(struct nvif_notify *notify) 
	return 0;

}



static inline int

nvif_notify_func(struct nvif_notify *notify, bool keep)

{

	int ret = notify->func(notify);

	if (ret == NVIF_NOTIFY_KEEP ||

	    !test_and_clear_bit(NVKM_NOTIFY_USER, &notify->flags)) {

		if (!keep)

			atomic_dec(&notify->putcnt);

		else

			nvif_notify_get_(notify);

	}

	return ret;

}



static void

nvif_notify_work(struct work_struct *work)

{

	struct nvif_notify *notify = container_of(work, typeof(*notify), work);

	if (notify->func(notify) == NVIF_NOTIFY_KEEP)

		nvif_notify_get_(notify);

	nvif_notify_func(notify, true);

}



int
@@ -113,19 +126,15 @@ nvif_notify(const void *header, u32 length, const void *data, u32 size) 
	if (!WARN_ON(notify == NULL)) {

		struct nvif_client *client = nvif_client(notify->object);

		if (!WARN_ON(notify->size != size)) {

			if (test_bit(NVIF_NOTIFY_WORK, &notify->flags)) {

			atomic_inc(&notify->putcnt);

			if (test_bit(NVIF_NOTIFY_WORK, &notify->flags)) {

				memcpy((void *)notify->data, data, size);

				schedule_work(&notify->work);

				return NVIF_NOTIFY_DROP;

			}

			notify->data = data;

			ret = notify->func(notify);

			ret = nvif_notify_func(notify, client->driver->keep);

			notify->data = NULL;

			if (ret != NVIF_NOTIFY_DROP && client->driver->keep) {

				atomic_inc(&notify->putcnt);

				nvif_notify_get_(notify);

			}

		}

	}