nouveau: enable multi-context/single-channel support for nv40

4 files changed, 15 insertions, 1 deletions

diff --git a/src/gallium/drivers/nv40/nv40_context.c b/src/gallium/drivers/nv40/nv40_context.c
index 084829ce28..203c843a01 100644
--- a/src/gallium/drivers/nv40/nv40_context.c
+++ b/src/gallium/drivers/nv40/nv40_context.c
@@ -44,7 +44,7 @@ nv40_destroy(struct pipe_context *pipe)
 }
 
 struct pipe_context *
-nv40_create(struct pipe_screen *pscreen)
+nv40_create(struct pipe_screen *pscreen, unsigned pctx_id)
 {
 	struct nv40_screen *screen = nv40_screen(pscreen);
 	struct pipe_winsys *ws = pscreen->winsys;
@@ -56,6 +56,7 @@ nv40_create(struct pipe_screen *pscreen)
 	if (!nv40)
 		return NULL;
 	nv40->screen = screen;
+	nv40->pctx_id = pctx_id;
 
 	nv40->chipset = chipset;
 	nv40->nvws = nvws;
diff --git a/src/gallium/drivers/nv40/nv40_context.h b/src/gallium/drivers/nv40/nv40_context.h
index 3b669594dc..e118776306 100644
--- a/src/gallium/drivers/nv40/nv40_context.h
+++ b/src/gallium/drivers/nv40/nv40_context.h
@@ -108,6 +108,7 @@ struct nv40_context {
 
 	struct nouveau_winsys *nvws;
 	struct nv40_screen *screen;
+	unsigned pctx_id;
 
 	struct draw_context *draw;
 
diff --git a/src/gallium/drivers/nv40/nv40_screen.h b/src/gallium/drivers/nv40/nv40_screen.h
index 9f9668dbb6..3ea78aadfd 100644
--- a/src/gallium/drivers/nv40/nv40_screen.h
+++ b/src/gallium/drivers/nv40/nv40_screen.h
@@ -9,6 +9,8 @@ struct nv40_screen {
 	struct nouveau_winsys *nvws;
 	unsigned chipset;
 
+	unsigned cur_pctx;
+
 	/* HW graphics objects */
 	struct nouveau_grobj *curie;
 	struct nouveau_notifier *sync;
diff --git a/src/gallium/drivers/nv40/nv40_state_emit.c b/src/gallium/drivers/nv40/nv40_state_emit.c
index 221503617c..a95e2472e2 100644
--- a/src/gallium/drivers/nv40/nv40_state_emit.c
+++ b/src/gallium/drivers/nv40/nv40_state_emit.c
@@ -62,8 +62,18 @@ static void
 nv40_state_emit(struct nv40_context *nv40)
 {
 	struct nv40_state *state = &nv40->state;
+	struct nv40_screen *screen = nv40->screen;
 	unsigned i, samplers;
 
+	if (nv40->pctx_id != screen->cur_pctx) {
+		for (i = 0; i < NV40_STATE_MAX; i++) {
+			if (screen->state[i] != state->hw[i] && state->hw[i])
+				state->dirty |= (1ULL << i);
+		}
+
+		screen->cur_pctx = nv40->pctx_id;
+	}
+
 	while (state->dirty) {
 		unsigned idx = ffsll(state->dirty) - 1;