drm/nouveau/nvif: simplify and tidy library interfaces

A variety of tweaks to the NVIF library interfaces, mostly ripping out
things that turned out to be not so useful.

- Removed refcounting from nvif_object, callers are expected to not be
  stupid instead.
- nvif_client is directly reachable from anything derived from nvif_object,
  removing the need for heuristics to locate it
- _new() versions of interfaces, that allocate memory for the object
  they construct, have been removed.  The vast majority of callers used
  the embedded _init() interfaces.
- No longer storing constructor arguments (and the data returned from
  nvkm) inside nvif_object, it's more or less unused and just wastes
  memory.

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

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
index c7592ec8ecb8..af89c3665b2a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -12,13 +12,14 @@
 static unsigned int
 nouveau_vga_set_decode(void *priv, bool state)
 {
-	struct nvif_device *device = &nouveau_drm(priv)->device;
+	struct nouveau_drm *drm = nouveau_drm(priv);
+	struct nvif_object *device = &drm->device.object;
 
-	if (device->info.family == NV_DEVICE_INFO_V0_CURIE &&
-	    device->info.chipset >= 0x4c)
+	if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE &&
+	    drm->device.info.chipset >= 0x4c)
 		nvif_wr32(device, 0x088060, state);
 	else
-	if (device->info.chipset >= 0x40)
+	if (drm->device.info.chipset >= 0x40)
 		nvif_wr32(device, 0x088054, state);
 	else
 		nvif_wr32(device, 0x001854, state);