Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 137 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/mxm.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/mxm.c
new file mode 100644
index 000000000..994cc2d77
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/mxm.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2012 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.
+ *
+ * Authors: Ben Skeggs
+ */
+#include <subdev/bios.h>
+#include <subdev/bios/bit.h>
+#include <subdev/bios/mxm.h>
+
+u16
+mxm_table(struct nvkm_bios *bios, u8 *ver, u8 *hdr)
+{
+	struct nvkm_subdev *subdev = &bios->subdev;
+	struct bit_entry x;
+
+	if (bit_entry(bios, 'x', &x)) {
+		nvkm_debug(subdev, "BIT 'x' table not present\n");
+		return 0x0000;
+	}
+
+	*ver = x.version;
+	*hdr = x.length;
+	if (*ver != 1 || *hdr < 3) {
+		nvkm_warn(subdev, "BIT 'x' table %d/%d unknown\n", *ver, *hdr);
+		return 0x0000;
+	}
+
+	return x.offset;
+}
+
+/* These map MXM v2.x digital connection values to the appropriate SOR/link,
+ * hopefully they're correct for all boards within the same chipset...
+ *
+ * MXM v3.x VBIOS are nicer and provide pointers to these tables.
+ */
+static u8 g84_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 g92_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 g94_sor_map[16] = {
+	0x00, 0x14, 0x24, 0x11, 0x34, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 g98_sor_map[16] = {
+	0x00, 0x14, 0x12, 0x11, 0x00, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+u8
+mxm_sor_map(struct nvkm_bios *bios, u8 conn)
+{
+	struct nvkm_subdev *subdev = &bios->subdev;
+	u8  ver, hdr;
+	u16 mxm = mxm_table(bios, &ver, &hdr);
+	if (mxm && hdr >= 6) {
+		u16 map = nvbios_rd16(bios, mxm + 4);
+		if (map) {
+			ver = nvbios_rd08(bios, map);
+			if (ver == 0x10 || ver == 0x11) {
+				if (conn < nvbios_rd08(bios, map + 3)) {
+					map += nvbios_rd08(bios, map + 1);
+					map += conn;
+					return nvbios_rd08(bios, map);
+				}
+
+				return 0x00;
+			}
+
+			nvkm_warn(subdev, "unknown sor map v%02x\n", ver);
+		}
+	}
+
+	if (bios->version.chip == 0x84 || bios->version.chip == 0x86)
+		return g84_sor_map[conn];
+	if (bios->version.chip == 0x92)
+		return g92_sor_map[conn];
+	if (bios->version.chip == 0x94 || bios->version.chip == 0x96)
+		return g94_sor_map[conn];
+	if (bios->version.chip == 0x98)
+		return g98_sor_map[conn];
+
+	nvkm_warn(subdev, "missing sor map\n");
+	return 0x00;
+}
+
+u8
+mxm_ddc_map(struct nvkm_bios *bios, u8 port)
+{
+	struct nvkm_subdev *subdev = &bios->subdev;
+	u8  ver, hdr;
+	u16 mxm = mxm_table(bios, &ver, &hdr);
+	if (mxm && hdr >= 8) {
+		u16 map = nvbios_rd16(bios, mxm + 6);
+		if (map) {
+			ver = nvbios_rd08(bios, map);
+			if (ver == 0x10) {
+				if (port < nvbios_rd08(bios, map + 3)) {
+					map += nvbios_rd08(bios, map + 1);
+					map += port;
+					return nvbios_rd08(bios, map);
+				}
+
+				return 0x00;
+			}
+
+			nvkm_warn(subdev, "unknown ddc map v%02x\n", ver);
+		}
+	}
+
+	/* v2.x: directly write port as dcb i2cidx */
+	return (port << 4) | port;
+}