drm/nouveau/kms/nv50: separate out base/ovly channel usage bounds commit

This commit separates the calculation of EVO state from the commit, in
order to make the same code useful for atomic modesetting.

The legacy interfaces have been wrapped on top of them.

We're no longer touching the overlay channel usage bounds as of this
commit.  The code to do so is in place for when overlay planes are
added.

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

drivers/gpu/drm/nouveau/nv50_display.c

@@ -128,6 +128,10 @@ struct nv50_head_atom {
 		u16 h;
 	} base;
 
+	struct {
+		u8 cpp;
+	} ovly;
+
 	union {
 		struct {
 			bool core:1;
@@ -142,6 +146,8 @@ struct nv50_head_atom {
 			bool curs:1;
 			bool view:1;
 			bool mode:1;
+			bool base:1;
+			bool ovly:1;
 		};
 		u16 mask;
 	} set;
@@ -785,6 +791,65 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 /******************************************************************************
  * Head
  *****************************************************************************/
+static void
+nv50_head_ovly(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
+	u32 bounds = 0;
+	u32 *push;
+
+	if (asyh->base.cpp) {
+		switch (asyh->base.cpp) {
+		case 8: bounds |= 0x00000500; break;
+		case 4: bounds |= 0x00000300; break;
+		case 2: bounds |= 0x00000100; break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+		bounds |= 0x00000001;
+	}
+
+	if ((push = evo_wait(core, 2))) {
+		if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
+			evo_mthd(push, 0x0904 + head->base.index * 0x400, 1);
+		else
+			evo_mthd(push, 0x04d4 + head->base.index * 0x300, 1);
+		evo_data(push, bounds);
+		evo_kick(push, core);
+	}
+}
+
+static void
+nv50_head_base(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
+	u32 bounds = 0;
+	u32 *push;
+
+	if (asyh->base.cpp) {
+		switch (asyh->base.cpp) {
+		case 8: bounds |= 0x00000500; break;
+		case 4: bounds |= 0x00000300; break;
+		case 2: bounds |= 0x00000100; break;
+		case 1: bounds |= 0x00000000; break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+		bounds |= 0x00000001;
+	}
+
+	if ((push = evo_wait(core, 2))) {
+		if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA)
+			evo_mthd(push, 0x0900 + head->base.index * 0x400, 1);
+		else
+			evo_mthd(push, 0x04d0 + head->base.index * 0x300, 1);
+		evo_data(push, bounds);
+		evo_kick(push, core);
+	}
+}
+
 static void
 nv50_head_curs_clr(struct nv50_head *head)
 {
@@ -1018,6 +1083,8 @@ nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 	if (asyh->set.core   ) nv50_head_lut_set (head, asyh);
 	if (asyh->set.core   ) nv50_head_core_set(head, asyh);
 	if (asyh->set.curs   ) nv50_head_curs_set(head, asyh);
+	if (asyh->set.base   ) nv50_head_base    (head, asyh);
+	if (asyh->set.ovly   ) nv50_head_ovly    (head, asyh);
 }
 
 static void
@@ -1106,9 +1173,13 @@ nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
 		asyh->core.pitch = ALIGN(asyh->core.w, 64) * 4;
 		asyh->lut.handle = disp->mast.base.vram.handle;
 		asyh->lut.offset = head->base.lut.nvbo->bo.offset;
+		asyh->set.base = armh->base.cpp != asyh->base.cpp;
+		asyh->set.ovly = armh->ovly.cpp != asyh->ovly.cpp;
 	} else {
 		asyh->core.visible = false;
 		asyh->curs.visible = false;
+		asyh->base.cpp = 0;
+		asyh->ovly.cpp = 0;
 	}
 
 	if (!drm_atomic_crtc_needs_modeset(&asyh->state)) {
@@ -1491,7 +1562,6 @@ nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
 	struct nv50_mast *mast = nv50_mast(crtc->dev);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	struct nouveau_connector *nv_connector;
-	u32 *push;
 	int ret;
 	struct nv50_head *head = nv50_head(crtc);
 	struct nv50_head_atom *asyh = &head->asy;
@@ -1508,20 +1578,6 @@ nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
 
 	nv50_head_flush_set(head, asyh);
 
-	push = evo_wait(mast, 64);
-	if (push) {
-		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
-			evo_mthd(push, 0x0900 + (nv_crtc->index * 0x400), 2);
-			evo_data(push, 0x00000311);
-			evo_data(push, 0x00000100);
-		} else {
-			evo_mthd(push, 0x04d0 + (nv_crtc->index * 0x300), 2);
-			evo_data(push, 0x00000311);
-			evo_data(push, 0x00000100);
-		}
-		evo_kick(push, mast);
-	}
-
 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
 	nv50_crtc_set_dither(nv_crtc, false);
 	nv50_crtc_set_scale(nv_crtc, false);