drm/nouveau/kms/nv50: separate out lut 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.

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

drivers/gpu/drm/nouveau/nv50_display.c

@@ -91,6 +91,11 @@ struct nv50_head_atom {
 		} v;
 	} mode;
 
+	struct {
+		u32 handle;
+		u64 offset:40;
+	} lut;
+
 	struct {
 		bool visible;
 		u32 handle;
@@ -770,7 +775,6 @@ nv50_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 /******************************************************************************
  * Head
  *****************************************************************************/
-
 static void
 nv50_head_core_clr(struct nv50_head *head)
 {
@@ -835,6 +839,61 @@ nv50_head_core_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
+static void
+nv50_head_lut_clr(struct nv50_head *head)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
+	u32 *push;
+	if ((push = evo_wait(core, 4))) {
+		if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
+			evo_mthd(push, 0x0840 + (head->base.index * 0x400), 1);
+			evo_data(push, 0x40000000);
+		} else
+		if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
+			evo_mthd(push, 0x0840 + (head->base.index * 0x400), 1);
+			evo_data(push, 0x40000000);
+			evo_mthd(push, 0x085c + (head->base.index * 0x400), 1);
+			evo_data(push, 0x00000000);
+		} else {
+			evo_mthd(push, 0x0440 + (head->base.index * 0x300), 1);
+			evo_data(push, 0x03000000);
+			evo_mthd(push, 0x045c + (head->base.index * 0x300), 1);
+			evo_data(push, 0x00000000);
+		}
+		evo_kick(push, core);
+	}
+}
+
+static void
+nv50_head_lut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->mast.base;
+	u32 *push;
+	if ((push = evo_wait(core, 7))) {
+		if (core->base.user.oclass < G82_DISP_CORE_CHANNEL_DMA) {
+			evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2);
+			evo_data(push, 0xc0000000);
+			evo_data(push, asyh->lut.offset >> 8);
+		} else
+		if (core->base.user.oclass < GF110_DISP_CORE_CHANNEL_DMA) {
+			evo_mthd(push, 0x0840 + (head->base.index * 0x400), 2);
+			evo_data(push, 0xc0000000);
+			evo_data(push, asyh->lut.offset >> 8);
+			evo_mthd(push, 0x085c + (head->base.index * 0x400), 1);
+			evo_data(push, asyh->lut.handle);
+		} else {
+			evo_mthd(push, 0x0440 + (head->base.index * 0x300), 4);
+			evo_data(push, 0x83000000);
+			evo_data(push, asyh->lut.offset >> 8);
+			evo_data(push, 0x00000000);
+			evo_data(push, 0x00000000);
+			evo_mthd(push, 0x045c + (head->base.index * 0x300), 1);
+			evo_data(push, asyh->lut.handle);
+		}
+		evo_kick(push, core);
+	}
+}
+
 static void
 nv50_head_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
@@ -878,6 +937,8 @@ nv50_head_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
 static void
 nv50_head_flush_clr(struct nv50_head *head, struct nv50_head_atom *asyh, bool y)
 {
+	if (asyh->clr.core && (!asyh->set.core || y))
+		nv50_head_lut_clr(head);
 	if (asyh->clr.core && (!asyh->set.core || y))
 		nv50_head_core_clr(head);
 }
@@ -886,6 +947,7 @@ static void
 nv50_head_flush_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
 	if (asyh->set.mode   ) nv50_head_mode    (head, asyh);
+	if (asyh->set.core   ) nv50_head_lut_set (head, asyh);
 	if (asyh->set.core   ) nv50_head_core_set(head, asyh);
 }
 
@@ -973,6 +1035,8 @@ nv50_head_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state)
 		asyh->core.layout = 1;
 		asyh->core.block = 0;
 		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;
 	} else {
 		asyh->core.visible = false;
 	}
@@ -1320,10 +1384,8 @@ static void
 nv50_crtc_prepare(struct drm_crtc *crtc)
 {
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-	struct nv50_mast *mast = nv50_mast(crtc->dev);
 	struct nv50_head *head = nv50_head(crtc);
 	struct nv50_head_atom *asyh = &head->asy;
-	u32 *push;
 
 	nv50_display_flip_stop(crtc);
 
@@ -1331,27 +1393,6 @@ nv50_crtc_prepare(struct drm_crtc *crtc)
 	nv50_head_atomic_check(&head->base.base, &asyh->state);
 	nv50_head_flush_clr(head, asyh, false);
 
-	push = evo_wait(mast, 6);
-	if (push) {
-		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
-			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
-			evo_data(push, 0x40000000);
-		} else
-		if (nv50_vers(mast) <  GF110_DISP_CORE_CHANNEL_DMA) {
-			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 1);
-			evo_data(push, 0x40000000);
-			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
-			evo_data(push, 0x00000000);
-		} else {
-			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 1);
-			evo_data(push, 0x03000000);
-			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
-			evo_data(push, 0x00000000);
-		}
-
-		evo_kick(push, mast);
-	}
-
 	nv50_crtc_cursor_show_hide(nv_crtc, false, false);
 }
 
@@ -1359,34 +1400,12 @@ static void
 nv50_crtc_commit(struct drm_crtc *crtc)
 {
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-	struct nv50_mast *mast = nv50_mast(crtc->dev);
-	u32 *push;
-
-	push = evo_wait(mast, 32);
-	if (push) {
-		if (nv50_vers(mast) < G82_DISP_CORE_CHANNEL_DMA) {
-			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
-			evo_data(push, 0xc0000000);
-			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
-		} else
-		if (nv50_vers(mast) < GF110_DISP_CORE_CHANNEL_DMA) {
-			evo_mthd(push, 0x0840 + (nv_crtc->index * 0x400), 2);
-			evo_data(push, 0xc0000000);
-			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
-			evo_mthd(push, 0x085c + (nv_crtc->index * 0x400), 1);
-			evo_data(push, mast->base.vram.handle);
-		} else {
-			evo_mthd(push, 0x0440 + (nv_crtc->index * 0x300), 4);
-			evo_data(push, 0x83000000);
-			evo_data(push, nv_crtc->lut.nvbo->bo.offset >> 8);
-			evo_data(push, 0x00000000);
-			evo_data(push, 0x00000000);
-			evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
-			evo_data(push, mast->base.vram.handle);
-		}
+	struct nv50_head *head = nv50_head(crtc);
+	struct nv50_head_atom *asyh = &head->asy;
 
-		evo_kick(push, mast);
-	}
+	asyh->state.active = true;
+	nv50_head_atomic_check(&head->base.base, &asyh->state);
+	nv50_head_flush_set(head, asyh);
 
 	nv50_crtc_cursor_show_hide(nv_crtc, true, true);
 	nv50_display_flip_next(crtc, crtc->primary->fb, NULL, 1);