drm/nouveau/kms/tu104: initial support

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

1 files changed, 206 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/dispnv50/headc57d.c b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
new file mode 100644
index 000000000000..32a7f9e85fb0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/dispnv50/headc57d.c
@@ -0,0 +1,206 @@
+/*
+ * 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,
+};