drm/nouveau/kms/tu104: initial support

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

drivers/gpu/drm/nouveau/dispnv50/Kbuild

@@ -7,6 +7,7 @@ nouveau-y += dispnv50/core827d.o
 nouveau-y += dispnv50/core907d.o
 nouveau-y += dispnv50/core917d.o
 nouveau-y += dispnv50/corec37d.o
+nouveau-y += dispnv50/corec57d.o
 
 nouveau-y += dispnv50/dac507d.o
 nouveau-y += dispnv50/dac907d.o
@@ -23,12 +24,14 @@ nouveau-y += dispnv50/head827d.o
 nouveau-y += dispnv50/head907d.o
 nouveau-y += dispnv50/head917d.o
 nouveau-y += dispnv50/headc37d.o
+nouveau-y += dispnv50/headc57d.o
 
 nouveau-y += dispnv50/wimm.o
 nouveau-y += dispnv50/wimmc37b.o
 
 nouveau-y += dispnv50/wndw.o
 nouveau-y += dispnv50/wndwc37e.o
+nouveau-y += dispnv50/wndwc57e.o
 
 nouveau-y += dispnv50/base.o
 nouveau-y += dispnv50/base507c.o

drivers/gpu/drm/nouveau/dispnv50/atom.h

@@ -54,7 +54,7 @@ struct nv50_head_atom {
 		u64 offset:40;
 		u8 buffer:1;
 		u8 mode:4;
-		u8 size:2;
+		u16 size:11;
 		u8 range:2;
 		u8 output_mode:2;
 		void (*load)(struct drm_color_lut *, int size, void __iomem *);
@@ -170,7 +170,7 @@ struct nv50_wndw_atom {
 			u8  buffer:1;
 			u8  enable:2;
 			u8  mode:4;
-			u8  size:2;
+			u16 size:11;
 			u8  range:2;
 			u8  output_mode:2;
 			void (*load)(struct drm_color_lut *, int size,

drivers/gpu/drm/nouveau/dispnv50/core.c

@@ -42,6 +42,7 @@ nv50_core_new(struct nouveau_drm *drm, struct nv50_core **pcore)
 		int version;
 		int (*new)(struct nouveau_drm *, s32, struct nv50_core **);
 	} cores[] = {
+		{ TU104_DISP_CORE_CHANNEL_DMA, 0, corec57d_new },
 		{ GV100_DISP_CORE_CHANNEL_DMA, 0, corec37d_new },
 		{ GP102_DISP_CORE_CHANNEL_DMA, 0, core917d_new },
 		{ GP100_DISP_CORE_CHANNEL_DMA, 0, core917d_new },

drivers/gpu/drm/nouveau/dispnv50/core.h

@@ -46,5 +46,9 @@ extern const struct nv50_outp_func sor907d;
 int core917d_new(struct nouveau_drm *, s32, struct nv50_core **);
 
 int corec37d_new(struct nouveau_drm *, s32, struct nv50_core **);
+int corec37d_ntfy_wait_done(struct nouveau_bo *, u32, struct nvif_device *);
+void corec37d_update(struct nv50_core *, u32 *, bool);
 extern const struct nv50_outp_func sorc37d;
+
+int corec57d_new(struct nouveau_drm *, s32, struct nv50_core **);
 #endif

drivers/gpu/drm/nouveau/dispnv50/corec37d.c

@@ -24,7 +24,7 @@
 
 #include <nouveau_bo.h>
 
-static void
+void
 corec37d_update(struct nv50_core *core, u32 *interlock, bool ntfy)
 {
 	u32 *push;
@@ -71,7 +71,7 @@ corec37d_ntfy_init(struct nouveau_bo *bo, u32 offset)
 	nouveau_bo_wr32(bo, offset / 4 + 3, 0x00000000);
 }
 
-void
+static void
 corec37d_init(struct nv50_core *core)
 {
 	const u32 windows = 8; /*XXX*/

drivers/gpu/drm/nouveau/dispnv50/corec57d.c

+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "core.h"
+#include "head.h"
+
+static void
+corec57d_init(struct nv50_core *core)
+{
+	const u32 windows = 8; /*XXX*/
+	u32 *push, i;
+	if ((push = evo_wait(&core->chan, 2 + 6 * windows + 2))) {
+		evo_mthd(push, 0x0208, 1);
+		evo_data(push, core->chan.sync.handle);
+		for (i = 0; i < windows; i++) {
+			evo_mthd(push, 0x1000 + (i * 0x080), 3);
+			evo_data(push, i >> 1);
+			evo_data(push, 0x0000000f);
+			evo_data(push, 0x00000000);
+			evo_mthd(push, 0x1010 + (i * 0x080), 1);
+			evo_data(push, 0x00117fff);
+		}
+		evo_mthd(push, 0x0200, 1);
+		evo_data(push, 0x00000001);
+		evo_kick(push, &core->chan);
+	}
+}
+
+static const struct nv50_core_func
+corec57d = {
+	.init = corec57d_init,
+	.ntfy_init = corec37d_ntfy_init,
+	.ntfy_wait_done = corec37d_ntfy_wait_done,
+	.update = corec37d_update,
+	.head = &headc57d,
+	.sor = &sorc37d,
+};
+
+int
+corec57d_new(struct nouveau_drm *drm, s32 oclass, struct nv50_core **pcore)
+{
+	return core507d_new_(&corec57d, drm, oclass, pcore);
+}

drivers/gpu/drm/nouveau/dispnv50/curs.c

@@ -31,6 +31,7 @@ nv50_curs_new(struct nouveau_drm *drm, int head, struct nv50_wndw **pwndw)
 		int version;
 		int (*new)(struct nouveau_drm *, int, s32, struct nv50_wndw **);
 	} curses[] = {
+		{ TU104_DISP_CURSOR, 0, cursc37a_new },
 		{ GV100_DISP_CURSOR, 0, cursc37a_new },
 		{ GK104_DISP_CURSOR, 0, curs907a_new },
 		{ GF110_DISP_CURSOR, 0, curs907a_new },

drivers/gpu/drm/nouveau/dispnv50/head.h

@@ -76,4 +76,14 @@ int head917d_curs_layout(struct nv50_head *, struct nv50_wndw_atom *,
 			 struct nv50_head_atom *);
 
 extern const struct nv50_head_func headc37d;
+void headc37d_view(struct nv50_head *, struct nv50_head_atom *);
+void headc37d_core_set(struct nv50_head *, struct nv50_head_atom *);
+void headc37d_core_clr(struct nv50_head *);
+int headc37d_curs_format(struct nv50_head *, struct nv50_wndw_atom *,
+			 struct nv50_head_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 *);
+
+extern const struct nv50_head_func headc57d;
 #endif

drivers/gpu/drm/nouveau/dispnv50/headc37d.c

@@ -65,7 +65,7 @@ headc37d_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
-static void
+void
 headc37d_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
@@ -79,7 +79,7 @@ headc37d_dither(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
-static void
+void
 headc37d_curs_clr(struct nv50_head *head)
 {
 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
@@ -93,7 +93,7 @@ headc37d_curs_clr(struct nv50_head *head)
 	}
 }
 
-static void
+void
 headc37d_curs_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
@@ -112,7 +112,7 @@ headc37d_curs_set(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
-static int
+int
 headc37d_curs_format(struct nv50_head *head, struct nv50_wndw_atom *asyw,
 		     struct nv50_head_atom *asyh)
 {
@@ -182,7 +182,7 @@ headc37d_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
 	}
 }
 
-static void
+void
 headc37d_view(struct nv50_head *head, struct nv50_head_atom *asyh)
 {
 	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;

drivers/gpu/drm/nouveau/dispnv50/headc57d.c

+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "head.h"
+#include "atom.h"
+#include "core.h"
+
+static void
+headc57d_or(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
+	u32 *push;
+	if ((push = evo_wait(core, 2))) {
+		/*XXX: This is a dirty hack until OR depth handling is
+		 *     improved later for deep colour etc.
+		 */
+		switch (asyh->or.depth) {
+		case 6: asyh->or.depth = 5; break;
+		case 5: asyh->or.depth = 4; break;
+		case 2: asyh->or.depth = 1; break;
+		case 0:	asyh->or.depth = 4; break;
+		default:
+			WARN_ON(1);
+			break;
+		}
+
+		evo_mthd(push, 0x2004 + (head->base.index * 0x400), 1);
+		evo_data(push, 0xfc000001 |
+			       asyh->or.depth << 4 |
+			       asyh->or.nvsync << 3 |
+			       asyh->or.nhsync << 2);
+		evo_kick(push, core);
+	}
+}
+
+static void
+headc57d_procamp(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
+	u32 *push;
+	if ((push = evo_wait(core, 2))) {
+		evo_mthd(push, 0x2000 + (head->base.index * 0x400), 1);
+#if 0
+		evo_data(push, 0x80000000 |
+			       asyh->procamp.sat.sin << 16 |
+			       asyh->procamp.sat.cos << 4);
+#else
+		evo_data(push, 0);
+#endif
+		evo_kick(push, core);
+	}
+}
+
+void
+headc57d_olut_clr(struct nv50_head *head)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
+	u32 *push;
+	if ((push = evo_wait(core, 2))) {
+		evo_mthd(push, 0x2288 + (head->base.index * 0x400), 1);
+		evo_data(push, 0x00000000);
+		evo_kick(push, core);
+	}
+}
+
+void
+headc57d_olut_set(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
+	u32 *push;
+	if ((push = evo_wait(core, 4))) {
+		evo_mthd(push, 0x2280 + (head->base.index * 0x400), 4);
+		evo_data(push, asyh->olut.size << 8 |
+			       asyh->olut.mode << 2 |
+			       asyh->olut.output_mode);
+		evo_data(push, 0xffffffff); /* FP_NORM_SCALE. */
+		evo_data(push, asyh->olut.handle);
+		evo_data(push, asyh->olut.offset >> 8);
+		evo_kick(push, core);
+	}
+}
+
+static void
+headc57d_olut_load_8(struct drm_color_lut *in, int size, void __iomem *mem)
+{
+	memset_io(mem, 0x00, 0x20); /* VSS header. */
+	mem += 0x20;
+
+	while (size--) {
+		u16 r = drm_color_lut_extract(in->  red + 0, 16);
+		u16 g = drm_color_lut_extract(in->green + 0, 16);
+		u16 b = drm_color_lut_extract(in-> blue + 0, 16);
+		u16 ri = 0, gi = 0, bi = 0, i;
+
+		if (in++, size) {
+			ri = (drm_color_lut_extract(in->  red, 16) - r) / 4;
+			gi = (drm_color_lut_extract(in->green, 16) - g) / 4;
+			bi = (drm_color_lut_extract(in-> blue, 16) - b) / 4;
+		}
+
+		for (i = 0; i < 4; i++, mem += 8) {
+			writew(r + ri * i, mem + 0);
+			writew(g + gi * i, mem + 2);
+			writew(b + bi * i, mem + 4);
+		}
+	}
+
+	/* INTERPOLATE modes require a "next" entry to interpolate with,
+	 * so we replicate the last entry to deal with this for now.
+	 */
+	writew(readw(mem - 8), mem + 0);
+	writew(readw(mem - 6), mem + 2);
+	writew(readw(mem - 4), mem + 4);
+}
+
+static void
+headc57d_olut_load(struct drm_color_lut *in, int size, void __iomem *mem)
+{
+	memset_io(mem, 0x00, 0x20); /* VSS header. */
+	mem += 0x20;
+
+	for (; size--; in++, mem += 0x08) {
+		writew(drm_color_lut_extract(in->  red, 16), mem + 0);
+		writew(drm_color_lut_extract(in->green, 16), mem + 2);
+		writew(drm_color_lut_extract(in-> blue, 16), mem + 4);
+	}
+
+	/* INTERPOLATE modes require a "next" entry to interpolate with,
+	 * so we replicate the last entry to deal with this for now.
+	 */
+	writew(readw(mem - 8), mem + 0);
+	writew(readw(mem - 6), mem + 2);
+	writew(readw(mem - 4), mem + 4);
+}
+
+void
+headc57d_olut(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	asyh->olut.mode = 2; /* DIRECT10 */
+	asyh->olut.size = 4 /* VSS header. */ + 1024 + 1 /* Entries. */;
+	asyh->olut.output_mode = 1; /* INTERPOLATE_ENABLE. */
+	if (asyh->state.gamma_lut &&
+	    asyh->state.gamma_lut->length / sizeof(struct drm_color_lut) == 256)
+		asyh->olut.load = headc57d_olut_load_8;
+	else
+		asyh->olut.load = headc57d_olut_load;
+}
+
+static void
+headc57d_mode(struct nv50_head *head, struct nv50_head_atom *asyh)
+{
+	struct nv50_dmac *core = &nv50_disp(head->base.base.dev)->core->chan;
+	struct nv50_head_mode *m = &asyh->mode;
+	u32 *push;
+	if ((push = evo_wait(core, 12))) {
+		evo_mthd(push, 0x2064 + (head->base.index * 0x400), 5);
+		evo_data(push, (m->v.active  << 16) | m->h.active );
+		evo_data(push, (m->v.synce   << 16) | m->h.synce  );
+		evo_data(push, (m->v.blanke  << 16) | m->h.blanke );
+		evo_data(push, (m->v.blanks  << 16) | m->h.blanks );
+		evo_data(push, (m->v.blank2e << 16) | m->v.blank2s);
+		evo_mthd(push, 0x200c + (head->base.index * 0x400), 1);
+		evo_data(push, m->clock * 1000);
+		evo_mthd(push, 0x2028 + (head->base.index * 0x400), 1);
+		evo_data(push, m->clock * 1000);
+		/*XXX: HEAD_USAGE_BOUNDS, doesn't belong here. */
+		evo_mthd(push, 0x2030 + (head->base.index * 0x400), 1);
+		evo_data(push, 0x00001014);
+		evo_kick(push, core);
+	}
+}
+
+const struct nv50_head_func
+headc57d = {
+	.view = headc37d_view,
+	.mode = headc57d_mode,
+	.olut = headc57d_olut,
+	.olut_identity = true,
+	.olut_set = headc57d_olut_set,
+	.olut_clr = headc57d_olut_clr,
+	.curs_layout = head917d_curs_layout,
+	.curs_format = headc37d_curs_format,
+	.curs_set = headc37d_curs_set,
+	.curs_clr = headc37d_curs_clr,
+	.dither = headc37d_dither,
+	.procamp = headc57d_procamp,
+	.or = headc57d_or,
+};

drivers/gpu/drm/nouveau/dispnv50/wimm.c

@@ -31,6 +31,7 @@ nv50_wimm_init(struct nouveau_drm *drm, struct nv50_wndw *wndw)
 		int version;
 		int (*init)(struct nouveau_drm *, s32, struct nv50_wndw *);
 	} wimms[] = {
+		{ TU104_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
 		{ GV100_DISP_WINDOW_IMM_CHANNEL_DMA, 0, wimmc37b_init },
 		{}
 	};

drivers/gpu/drm/nouveau/dispnv50/wndw.c

@@ -626,6 +626,7 @@ nv50_wndw_new(struct nouveau_drm *drm, enum drm_plane_type type, int index,
 		int (*new)(struct nouveau_drm *, enum drm_plane_type,
 			   int, s32, struct nv50_wndw **);
 	} wndws[] = {
+		{ TU104_DISP_WINDOW_CHANNEL_DMA, 0, wndwc57e_new },
 		{ GV100_DISP_WINDOW_CHANNEL_DMA, 0, wndwc37e_new },
 		{}
 	};

drivers/gpu/drm/nouveau/dispnv50/wndw.h

@@ -91,6 +91,23 @@ extern const struct nv50_wimm_func curs507a;
 
 int wndwc37e_new(struct nouveau_drm *, enum drm_plane_type, int, s32,
 		 struct nv50_wndw **);
+int wndwc37e_new_(const struct nv50_wndw_func *, struct nouveau_drm *,
+		  enum drm_plane_type type, int index, s32 oclass, u32 heads,
+		  struct nv50_wndw **);
+int wndwc37e_acquire(struct nv50_wndw *, struct nv50_wndw_atom *,
+		     struct nv50_head_atom *);
+void wndwc37e_release(struct nv50_wndw *, struct nv50_wndw_atom *,
+		      struct nv50_head_atom *);
+void wndwc37e_sema_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+void wndwc37e_sema_clr(struct nv50_wndw *);
+void wndwc37e_ntfy_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+void wndwc37e_ntfy_clr(struct nv50_wndw *);
+void wndwc37e_image_set(struct nv50_wndw *, struct nv50_wndw_atom *);
+void wndwc37e_image_clr(struct nv50_wndw *);
+void wndwc37e_update(struct nv50_wndw *, u32 *);
+
+int wndwc57e_new(struct nouveau_drm *, enum drm_plane_type, int, s32,
+		 struct nv50_wndw **);
 
 int nv50_wndw_new(struct nouveau_drm *, enum drm_plane_type, int index,
 		  struct nv50_wndw **);

drivers/gpu/drm/nouveau/dispnv50/wndwc37e.c

@@ -64,7 +64,7 @@ wndwc37e_ilut(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 	asyw->xlut.i.load = head907d_olut_load;
 }
 
-static void
+void
 wndwc37e_image_clr(struct nv50_wndw *wndw)
 {
 	u32 *push;
@@ -77,7 +77,7 @@ wndwc37e_image_clr(struct nv50_wndw *wndw)
 	}
 }
 
-static void
+void
 wndwc37e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
 	u32 *push;
@@ -118,7 +118,7 @@ wndwc37e_image_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 	evo_kick(push, &wndw->wndw);
 }
 
-static void
+void
 wndwc37e_ntfy_clr(struct nv50_wndw *wndw)
 {
 	u32 *push;
@@ -129,7 +129,7 @@ wndwc37e_ntfy_clr(struct nv50_wndw *wndw)
 	}
 }
 
-static void
+void
 wndwc37e_ntfy_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
 	u32 *push;
@@ -141,7 +141,7 @@ wndwc37e_ntfy_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 	}
 }
 
-static void
+void
 wndwc37e_sema_clr(struct nv50_wndw *wndw)
 {
 	u32 *push;
@@ -152,7 +152,7 @@ wndwc37e_sema_clr(struct nv50_wndw *wndw)
 	}
 }
 
-static void
+void
 wndwc37e_sema_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 {
 	u32 *push;
@@ -166,7 +166,7 @@ wndwc37e_sema_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
 	}
 }
 
-static void
+void
 wndwc37e_update(struct nv50_wndw *wndw, u32 *interlock)
 {
 	u32 *push;
@@ -184,13 +184,13 @@ wndwc37e_update(struct nv50_wndw *wndw, u32 *interlock)
 	}
 }
 
-static void
+void
 wndwc37e_release(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
 		 struct nv50_head_atom *asyh)
 {
 }
 
-static int
+int
 wndwc37e_acquire(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw,
 		 struct nv50_head_atom *asyh)
 {
@@ -237,7 +237,7 @@ wndwc37e = {
 	.update = wndwc37e_update,
 };
 
-static int
+int
 wndwc37e_new_(const struct nv50_wndw_func *func, struct nouveau_drm *drm,
 	      enum drm_plane_type type, int index, s32 oclass, u32 heads,
 	      struct nv50_wndw **pwndw)

drivers/gpu/drm/nouveau/dispnv50/wndwc57e.c

+/*
+ * Copyright 2018 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "wndw.h"
+#include "atom.h"
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_plane_helper.h>
+#include <nouveau_bo.h>
+
+#include <nvif/clc37e.h>
+
+static void
+wndwc57e_ilut_clr(struct nv50_wndw *wndw)
+{
+	u32 *push;
+	if ((push = evo_wait(&wndw->wndw, 2))) {
+		evo_mthd(push, 0x0444, 1);
+		evo_data(push, 0x00000000);
+		evo_kick(push, &wndw->wndw);
+	}
+}
+
+static void
+wndwc57e_ilut_set(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
+{
+	u32 *push;
+	if ((push = evo_wait(&wndw->wndw, 4))) {
+		evo_mthd(push, 0x0440, 3);
+		evo_data(push, asyw->xlut.i.size << 8 |
+			       asyw->xlut.i.mode << 2 |
+			       asyw->xlut.i.output_mode);
+		evo_data(push, asyw->xlut.handle);
+		evo_data(push, asyw->xlut.i.offset >> 8);
+		evo_kick(push, &wndw->wndw);
+	}
+}
+
+static u16
+fixedU0_16_FP16(u16 fixed)
+{
+        int sign = 0, exp = 0, man = 0;
+        if (fixed) {
+                while (--exp && !(fixed & 0x8000))
+                        fixed <<= 1;
+                man = ((fixed << 1) & 0xffc0) >> 6;
+                exp += 15;
+        }
+        return (sign << 15) | (exp << 10) | man;
+}
+
+static void
+wndwc57e_ilut_load(struct drm_color_lut *in, int size, void __iomem *mem)
+{
+	memset_io(mem, 0x00, 0x20); /* VSS header. */
+	mem += 0x20;
+
+	for (; size--; in++, mem += 0x08) {
+		u16 r = fixedU0_16_FP16(drm_color_lut_extract(in->  red, 16));
+		u16 g = fixedU0_16_FP16(drm_color_lut_extract(in->green, 16));
+		u16 b = fixedU0_16_FP16(drm_color_lut_extract(in-> blue, 16));
+		writew(r, mem + 0);
+		writew(g, mem + 2);
+		writew(b, mem + 4);
+	}
+
+	/* INTERPOLATE modes require a "next" entry to interpolate with,
+	 * so we replicate the last entry to deal with this for now.
+	 */
+	writew(readw(mem - 8), mem + 0);
+	writew(readw(mem - 6), mem + 2);
+	writew(readw(mem - 4), mem + 4);
+}
+
+static void
+wndwc57e_ilut(struct nv50_wndw *wndw, struct nv50_wndw_atom *asyw)
+{
+	u16 size = asyw->ilut->length / sizeof(struct drm_color_lut);
+	if (size == 256) {
+		asyw->xlut.i.mode = 1; /* DIRECT8. */
+	} else {
+		asyw->xlut.i.mode = 2; /* DIRECT10. */
+		size = 1024;
+	}
+	asyw->xlut.i.size = 4 /* VSS header. */ + size + 1 /* Entries. */;
+	asyw->xlut.i.output_mode = 0; /* INTERPOLATE_DISABLE. */
+	asyw->xlut.i.load = wndwc57e_ilut_load;
+}
+
+static const struct nv50_wndw_func
+wndwc57e = {
+	.acquire = wndwc37e_acquire,
+	.release = wndwc37e_release,
+	.sema_set = wndwc37e_sema_set,
+	.sema_clr = wndwc37e_sema_clr,
+	.ntfy_set = wndwc37e_ntfy_set,
+	.ntfy_clr = wndwc37e_ntfy_clr,
+	.ntfy_reset = corec37d_ntfy_init,
+	.ntfy_wait_begun = base507c_ntfy_wait_begun,
+	.ilut = wndwc57e_ilut,
+	.ilut_identity = true,
+	.xlut_set = wndwc57e_ilut_set,
+	.xlut_clr = wndwc57e_ilut_clr,
+	.image_set = wndwc37e_image_set,
+	.image_clr = wndwc37e_image_clr,
+	.update = wndwc37e_update,
+};
+
+int
+wndwc57e_new(struct nouveau_drm *drm, enum drm_plane_type type, int index,
+	     s32 oclass, struct nv50_wndw **pwndw)
+{
+	return wndwc37e_new_(&wndwc57e, drm, type, index, oclass,
+			     BIT(index >> 1), pwndw);
+}