5 files changed, 31 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/atom.h b/drivers/gpu/drm/nouveau/dispnv50/atom.h
index 24f7700768da..62faaf60f47a 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/atom.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/atom.h
@@ -18,6 +18,7 @@ struct nv50_head_atom {
 
 	struct {
 		u32 mask;
+		u32 owned;
 		u32 olut;
 	} wndw;
 
diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index d472942102f5..368069a5b181 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -2287,12 +2287,28 @@ static int
 nv50_disp_atomic_check(struct drm_device *dev, struct drm_atomic_state *state)
 {
 	struct nv50_atom *atom = nv50_atom(state);
+	struct nv50_core *core = nv50_disp(dev)->core;
 	struct drm_connector_state *old_connector_state, *new_connector_state;
 	struct drm_connector *connector;
 	struct drm_crtc_state *new_crtc_state;
 	struct drm_crtc *crtc;
+	struct nv50_head *head;
+	struct nv50_head_atom *asyh;
 	int ret, i;
 
+	if (core->assign_windows && core->func->head->static_wndw_map) {
+		drm_for_each_crtc(crtc, dev) {
+			new_crtc_state = drm_atomic_get_crtc_state(state,
+								   crtc);
+			if (IS_ERR(new_crtc_state))
+				return PTR_ERR(new_crtc_state);
+
+			head = nv50_head(crtc);
+			asyh = nv50_head_atom(new_crtc_state);
+			core->func->head->static_wndw_map(head, asyh);
+		}
+	}
+
 	/* We need to handle colour management on a per-plane basis. */
 	for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
 		if (new_crtc_state->color_mgmt_changed) {
diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.h b/drivers/gpu/drm/nouveau/dispnv50/head.h
index c32b27cdaefc..c05bbba9e247 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.h
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.h
@@ -40,6 +40,7 @@ struct nv50_head_func {
 	void (*dither)(struct nv50_head *, struct nv50_head_atom *);
 	void (*procamp)(struct nv50_head *, struct nv50_head_atom *);
 	void (*or)(struct nv50_head *, struct nv50_head_atom *);
+	void (*static_wndw_map)(struct nv50_head *, struct nv50_head_atom *);
 };
 
 extern const struct nv50_head_func head507d;
@@ -86,6 +87,7 @@ int headc37d_curs_format(struct nv50_head *, struct nv50_wndw_atom *,
 void headc37d_curs_set(struct nv50_head *, struct nv50_head_atom *);
 void headc37d_curs_clr(struct nv50_head *);
 void headc37d_dither(struct nv50_head *, struct nv50_head_atom *);
+void headc37d_static_wndw_map(struct nv50_head *, struct nv50_head_atom *);
 
 extern const struct nv50_head_func headc57d;
 #endif
diff --git a/drivers/gpu/drm/nouveau/dispnv50/headc37d.c b/drivers/gpu/drm/nouveau/dispnv50/headc37d.c
index 9ef3c603fc43..c2619652ff2e 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/headc37d.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/headc37d.c
@@ -204,6 +204,15 @@ headc37d_view(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
+void
+headc37d_static_wndw_map(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	int i, end;
+
+	for (i = head->base.index * 2, end = i + 2; i < end; i++)
+		asyh->wndw.owned |= BIT(i);
+}
+
 const struct nv50_head_func
 headc37d = {
 	.view = headc37d_view,
@@ -219,4 +228,5 @@ headc37d = {
 	.dither = headc37d_dither,
 	.procamp = headc37d_procamp,
 	.or = headc37d_or,
+	.static_wndw_map = headc37d_static_wndw_map,
 };
diff --git a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
index 97141eb8e75a..1c1887749f4c 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
@@ -211,4 +211,6 @@ headc57d = {
 	.dither = headc37d_dither,
 	.procamp = headc57d_procamp,
 	.or = headc57d_or,
+	/* TODO: flexible window mappings */
+	.static_wndw_map = headc37d_static_wndw_map,
 };