drm/nouveau: create real execution engine for software object class

Just a cleanup more or less, and to remove the need for special handling of
software objects.

This removes a heap of documentation on dma/graph object formats.  The info
is very out of date with our current understanding, and is far better
documented in rnndb in envytools git.

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

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 980b3e187b72..a13f2516d52f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -33,6 +33,7 @@
 #include "nouveau_crtc.h"
 #include "nouveau_dma.h"
 #include "nouveau_connector.h"
+#include "nouveau_software.h"
 #include "nouveau_gpio.h"
 #include "nv50_display.h"
 
@@ -432,6 +433,7 @@ nouveau_page_flip_emit(struct nouveau_channel *chan,
 		       struct nouveau_page_flip_state *s,
 		       struct nouveau_fence **pfence)
 {
+	struct nouveau_software_chan *swch = chan->engctx[NVOBJ_ENGINE_SW];
 	struct drm_nouveau_private *dev_priv = chan->dev->dev_private;
 	struct drm_device *dev = chan->dev;
 	unsigned long flags;
@@ -439,7 +441,7 @@ nouveau_page_flip_emit(struct nouveau_channel *chan,
 
 	/* Queue it to the pending list */
 	spin_lock_irqsave(&dev->event_lock, flags);
-	list_add_tail(&s->head, &chan->nvsw.flip);
+	list_add_tail(&s->head, &swch->flip);
 	spin_unlock_irqrestore(&dev->event_lock, flags);
 
 	/* Synchronize with the old framebuffer */
@@ -547,20 +549,20 @@ int
 nouveau_finish_page_flip(struct nouveau_channel *chan,
 			 struct nouveau_page_flip_state *ps)
 {
+	struct nouveau_software_chan *swch = chan->engctx[NVOBJ_ENGINE_SW];
 	struct drm_device *dev = chan->dev;
 	struct nouveau_page_flip_state *s;
 	unsigned long flags;
 
 	spin_lock_irqsave(&dev->event_lock, flags);
 
-	if (list_empty(&chan->nvsw.flip)) {
+	if (list_empty(&swch->flip)) {
 		NV_ERROR(dev, "Unexpected pageflip in channel %d.\n", chan->id);
 		spin_unlock_irqrestore(&dev->event_lock, flags);
 		return -EINVAL;
 	}
 
-	s = list_first_entry(&chan->nvsw.flip,
-			     struct nouveau_page_flip_state, head);
+	s = list_first_entry(&swch->flip, struct nouveau_page_flip_state, head);
 	if (s->event) {
 		struct drm_pending_vblank_event *e = s->event;
 		struct timeval now;