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

Note to self: more sleep

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/core/core/client.c b/drivers/gpu/drm/nouveau/core/core/client.c
index 10598de..68bf067 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/core/client.c
+++ b/drivers/gpu/drm/nouveau/core/core/client.c
@@ -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

diff --git a/drivers/gpu/drm/nouveau/core/include/core/client.h b/drivers/gpu/drm/nouveau/core/include/core/client.h
index 4fc6ab1..1794a05 100644 (file)
--- a/drivers/gpu/drm/nouveau/core/include/core/client.h
+++ b/drivers/gpu/drm/nouveau/core/include/core/client.h
@@ -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 *

diff --git a/drivers/gpu/drm/nouveau/nvif/notify.c b/drivers/gpu/drm/nouveau/nvif/notify.c
index 7c06123..7e03cdd 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvif/notify.c
+++ b/drivers/gpu/drm/nouveau/nvif/notify.c
@@ -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)) {
+                       atomic_inc(&notify->putcnt);
                        if (test_bit(NVIF_NOTIFY_WORK, &notify->flags)) {
-                               atomic_inc(&notify->putcnt);
                                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);
-                       }
                }
        }