drm/nouveau: remove dev_priv->init_state and friends

Nouveau will no longer load at all if card initialisation fails, so all
these checks are unnecessary.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_bo.c

@@ -711,8 +711,7 @@ nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
 		return ret;
 
 	/* Software copy if the card isn't up and running yet. */
-	if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE ||
-	    !dev_priv->channel) {
+	if (!dev_priv->channel) {
 		ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
 		goto out;
 	}

drivers/gpu/drm/nouveau/nouveau_channel.c

@@ -369,8 +369,6 @@ nouveau_ioctl_fifo_alloc(struct drm_device *dev, void *data,
 	struct nouveau_channel *chan;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	if (dev_priv->engine.graph.accel_blocked)
 		return -ENODEV;
 
@@ -419,7 +417,6 @@ nouveau_ioctl_fifo_free(struct drm_device *dev, void *data,
 	struct drm_nouveau_channel_free *cfree = data;
 	struct nouveau_channel *chan;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(cfree->channel, file_priv, chan);
 
 	nouveau_channel_free(chan);

drivers/gpu/drm/nouveau/nouveau_drv.h

@@ -492,11 +492,6 @@ enum nouveau_card_type {
 
 struct drm_nouveau_private {
 	struct drm_device *dev;
-	enum {
-		NOUVEAU_CARD_INIT_DOWN,
-		NOUVEAU_CARD_INIT_DONE,
-		NOUVEAU_CARD_INIT_FAILED
-	} init_state;
 
 	/* the card type, takes NV_* as values */
 	enum nouveau_card_type card_type;
@@ -649,14 +644,6 @@ nouveau_bo_ref(struct nouveau_bo *ref, struct nouveau_bo **pnvbo)
 	return 0;
 }
 
-#define NOUVEAU_CHECK_INITIALISED_WITH_RETURN do {            \
-	struct drm_nouveau_private *nv = dev->dev_private;    \
-	if (nv->init_state != NOUVEAU_CARD_INIT_DONE) {       \
-		NV_ERROR(dev, "called without init\n");       \
-		return -EINVAL;                               \
-	}                                                     \
-} while (0)
-
 #define NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(id, cl, ch) do {    \
 	struct drm_nouveau_private *nv = dev->dev_private;       \
 	if (!nouveau_channel_owner(dev, (cl), (id))) {           \

drivers/gpu/drm/nouveau/nouveau_gem.c

@@ -137,8 +137,6 @@ nouveau_gem_ioctl_new(struct drm_device *dev, void *data,
 	uint32_t flags = 0;
 	int ret = 0;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	if (unlikely(dev_priv->ttm.bdev.dev_mapping == NULL))
 		dev_priv->ttm.bdev.dev_mapping = dev_priv->dev->dev_mapping;
 
@@ -580,7 +578,6 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
 	struct nouveau_fence *fence = NULL;
 	int i, j, ret = 0, do_reloc = 0;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(req->channel, file_priv, chan);
 
 	req->vram_available = dev_priv->fb_aper_free;
@@ -760,8 +757,6 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
 	bool no_wait = !!(req->flags & NOUVEAU_GEM_CPU_PREP_NOWAIT);
 	int ret = -EINVAL;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
 		return ret;
@@ -800,8 +795,6 @@ nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
 	struct nouveau_bo *nvbo;
 	int ret = -EINVAL;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
 		return ret;
@@ -827,8 +820,6 @@ nouveau_gem_ioctl_info(struct drm_device *dev, void *data,
 	struct drm_gem_object *gem;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	gem = drm_gem_object_lookup(dev, file_priv, req->handle);
 	if (!gem)
 		return -EINVAL;

drivers/gpu/drm/nouveau/nouveau_notifier.c

@@ -184,7 +184,6 @@ nouveau_ioctl_notifier_alloc(struct drm_device *dev, void *data,
 	struct nouveau_channel *chan;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(na->channel, file_priv, chan);
 
 	ret = nouveau_notifier_alloc(chan, na->handle, na->size, &na->offset);

drivers/gpu/drm/nouveau/nouveau_object.c

@@ -1232,7 +1232,6 @@ int nouveau_ioctl_grobj_alloc(struct drm_device *dev, void *data,
 	struct nouveau_channel *chan;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(init->channel, file_priv, chan);
 
 	if (init->handle == ~0)
@@ -1283,7 +1282,6 @@ int nouveau_ioctl_gpuobj_free(struct drm_device *dev, void *data,
 	struct nouveau_channel *chan;
 	int ret;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
 	NOUVEAU_GET_USER_CHANNEL_WITH_RETURN(objfree->channel, file_priv, chan);
 
 	ret = nouveau_gpuobj_ref_find(chan, objfree->handle, &ref);

drivers/gpu/drm/nouveau/nouveau_state.c

@@ -407,11 +407,6 @@ nouveau_card_init(struct drm_device *dev)
 	struct nouveau_engine *engine;
 	int ret;
 
-	NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
-
-	if (dev_priv->init_state == NOUVEAU_CARD_INIT_DONE)
-		return 0;
-
 	vga_client_register(dev->pdev, dev, NULL, nouveau_vga_set_decode);
 	vga_switcheroo_register_client(dev->pdev, nouveau_switcheroo_set_state,
 				       nouveau_switcheroo_can_switch);
@@ -421,7 +416,6 @@ nouveau_card_init(struct drm_device *dev)
 	if (ret)
 		goto out;
 	engine = &dev_priv->engine;
-	dev_priv->init_state = NOUVEAU_CARD_INIT_FAILED;
 	spin_lock_init(&dev_priv->context_switch_lock);
 
 	/* Parse BIOS tables / Run init tables if card not POSTed */
@@ -513,8 +507,6 @@ nouveau_card_init(struct drm_device *dev)
 	if (ret)
 		NV_ERROR(dev, "Error %d registering backlight\n", ret);
 
-	dev_priv->init_state = NOUVEAU_CARD_INIT_DONE;
-
 	nouveau_fbcon_init(dev);
 	drm_kms_helper_poll_init(dev);
 	return 0;
@@ -559,44 +551,37 @@ static void nouveau_card_takedown(struct drm_device *dev)
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_engine *engine = &dev_priv->engine;
 
-	NV_DEBUG(dev, "prev state = %d\n", dev_priv->init_state);
-
-	if (dev_priv->init_state != NOUVEAU_CARD_INIT_DOWN) {
+	nouveau_backlight_exit(dev);
 
-		nouveau_backlight_exit(dev);
-
-		if (dev_priv->channel) {
-			nouveau_channel_free(dev_priv->channel);
-			dev_priv->channel = NULL;
-		}
-
-		if (!nouveau_noaccel) {
-			engine->fifo.takedown(dev);
-			engine->graph.takedown(dev);
-		}
-		engine->fb.takedown(dev);
-		engine->timer.takedown(dev);
-		engine->mc.takedown(dev);
+	if (dev_priv->channel) {
+		nouveau_channel_free(dev_priv->channel);
+		dev_priv->channel = NULL;
+	}
 
-		mutex_lock(&dev->struct_mutex);
-		ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
-		ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT);
-		mutex_unlock(&dev->struct_mutex);
-		nouveau_sgdma_takedown(dev);
+	if (!nouveau_noaccel) {
+		engine->fifo.takedown(dev);
+		engine->graph.takedown(dev);
+	}
+	engine->fb.takedown(dev);
+	engine->timer.takedown(dev);
+	engine->mc.takedown(dev);
 
-		nouveau_gpuobj_takedown(dev);
-		nouveau_mem_close(dev);
-		engine->instmem.takedown(dev);
+	mutex_lock(&dev->struct_mutex);
+	ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_VRAM);
+	ttm_bo_clean_mm(&dev_priv->ttm.bdev, TTM_PL_TT);
+	mutex_unlock(&dev->struct_mutex);
+	nouveau_sgdma_takedown(dev);
 
-		drm_irq_uninstall(dev);
+	nouveau_gpuobj_takedown(dev);
+	nouveau_mem_close(dev);
+	engine->instmem.takedown(dev);
 
-		nouveau_gpuobj_late_takedown(dev);
-		nouveau_bios_takedown(dev);
+	drm_irq_uninstall(dev);
 
-		vga_client_register(dev->pdev, NULL, NULL, NULL);
+	nouveau_gpuobj_late_takedown(dev);
+	nouveau_bios_takedown(dev);
 
-		dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
-	}
+	vga_client_register(dev->pdev, NULL, NULL, NULL);
 }
 
 /* here a client dies, release the stuff that was allocated for its
@@ -692,7 +677,6 @@ int nouveau_load(struct drm_device *dev, unsigned long flags)
 	dev_priv->dev = dev;
 
 	dev_priv->flags = flags & NOUVEAU_FLAGS;
-	dev_priv->init_state = NOUVEAU_CARD_INIT_DOWN;
 
 	NV_DEBUG(dev, "vendor: 0x%X device: 0x%X class: 0x%X\n",
 		 dev->pci_vendor, dev->pci_device, dev->pdev->class);
@@ -840,8 +824,6 @@ int nouveau_ioctl_getparam(struct drm_device *dev, void *data,
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct drm_nouveau_getparam *getparam = data;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	switch (getparam->param) {
 	case NOUVEAU_GETPARAM_CHIPSET_ID:
 		getparam->value = dev_priv->chipset;
@@ -910,8 +892,6 @@ nouveau_ioctl_setparam(struct drm_device *dev, void *data,
 {
 	struct drm_nouveau_setparam *setparam = data;
 
-	NOUVEAU_CHECK_INITIALISED_WITH_RETURN;
-
 	switch (setparam->param) {
 	default:
 		NV_ERROR(dev, "unknown parameter %lld\n", setparam->param);