Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 191 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.c
new file mode 100644
index 000000000..9abfa5e2f
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.c
@@ -0,0 +1,191 @@
+/*
+ * 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 "mxms.h"
+
+#define ROM16(x) get_unaligned_le16(&(x))
+#define ROM32(x) get_unaligned_le32(&(x))
+
+static u8 *
+mxms_data(struct nvkm_mxm *mxm)
+{
+	return mxm->mxms;
+
+}
+
+u16
+mxms_version(struct nvkm_mxm *mxm)
+{
+	u8 *mxms = mxms_data(mxm);
+	u16 version = (mxms[4] << 8) | mxms[5];
+	switch (version ) {
+	case 0x0200:
+	case 0x0201:
+	case 0x0300:
+		return version;
+	default:
+		break;
+	}
+
+	nvkm_debug(&mxm->subdev, "unknown version %d.%d\n", mxms[4], mxms[5]);
+	return 0x0000;
+}
+
+u16
+mxms_headerlen(struct nvkm_mxm *mxm)
+{
+	return 8;
+}
+
+u16
+mxms_structlen(struct nvkm_mxm *mxm)
+{
+	return *(u16 *)&mxms_data(mxm)[6];
+}
+
+bool
+mxms_checksum(struct nvkm_mxm *mxm)
+{
+	u16 size = mxms_headerlen(mxm) + mxms_structlen(mxm);
+	u8 *mxms = mxms_data(mxm), sum = 0;
+	while (size--)
+		sum += *mxms++;
+	if (sum) {
+		nvkm_debug(&mxm->subdev, "checksum invalid\n");
+		return false;
+	}
+	return true;
+}
+
+bool
+mxms_valid(struct nvkm_mxm *mxm)
+{
+	u8 *mxms = mxms_data(mxm);
+	if (*(u32 *)mxms != 0x5f4d584d) {
+		nvkm_debug(&mxm->subdev, "signature invalid\n");
+		return false;
+	}
+
+	if (!mxms_version(mxm) || !mxms_checksum(mxm))
+		return false;
+
+	return true;
+}
+
+bool
+mxms_foreach(struct nvkm_mxm *mxm, u8 types,
+	     bool (*exec)(struct nvkm_mxm *, u8 *, void *), void *info)
+{
+	struct nvkm_subdev *subdev = &mxm->subdev;
+	u8 *mxms = mxms_data(mxm);
+	u8 *desc = mxms + mxms_headerlen(mxm);
+	u8 *fini = desc + mxms_structlen(mxm) - 1;
+	while (desc < fini) {
+		u8 type = desc[0] & 0x0f;
+		u8 headerlen = 0;
+		u8 recordlen = 0;
+		u8 entries = 0;
+
+		switch (type) {
+		case 0: /* Output Device Structure */
+			if (mxms_version(mxm) >= 0x0300)
+				headerlen = 8;
+			else
+				headerlen = 6;
+			break;
+		case 1: /* System Cooling Capability Structure */
+		case 2: /* Thermal Structure */
+		case 3: /* Input Power Structure */
+			headerlen = 4;
+			break;
+		case 4: /* GPIO Device Structure */
+			headerlen = 4;
+			recordlen = 2;
+			entries   = (ROM32(desc[0]) & 0x01f00000) >> 20;
+			break;
+		case 5: /* Vendor Specific Structure */
+			headerlen = 8;
+			break;
+		case 6: /* Backlight Control Structure */
+			if (mxms_version(mxm) >= 0x0300) {
+				headerlen = 4;
+				recordlen = 8;
+				entries   = (desc[1] & 0xf0) >> 4;
+			} else {
+				headerlen = 8;
+			}
+			break;
+		case 7: /* Fan Control Structure */
+			headerlen = 8;
+			recordlen = 4;
+			entries   = desc[1] & 0x07;
+			break;
+		default:
+			nvkm_debug(subdev, "unknown descriptor type %d\n", type);
+			return false;
+		}
+
+		if (mxm->subdev.debug >= NV_DBG_DEBUG && (exec == NULL)) {
+			static const char * mxms_desc[] = {
+				"ODS", "SCCS", "TS", "IPS",
+				"GSD", "VSS", "BCS", "FCS",
+			};
+			u8 *dump = desc;
+			char data[32], *ptr;
+			int i, j;
+
+			for (j = headerlen - 1, ptr = data; j >= 0; j--)
+				ptr += sprintf(ptr, "%02x", dump[j]);
+			dump += headerlen;
+
+			nvkm_debug(subdev, "%4s: %s\n", mxms_desc[type], data);
+			for (i = 0; i < entries; i++, dump += recordlen) {
+				for (j = recordlen - 1, ptr = data; j >= 0; j--)
+					ptr += sprintf(ptr, "%02x", dump[j]);
+				nvkm_debug(subdev, "      %s\n", data);
+			}
+		}
+
+		if (types & (1 << type)) {
+			if (!exec(mxm, desc, info))
+				return false;
+		}
+
+		desc += headerlen + (entries * recordlen);
+	}
+
+	return true;
+}
+
+void
+mxms_output_device(struct nvkm_mxm *mxm, u8 *pdata, struct mxms_odev *desc)
+{
+	u64 data = ROM32(pdata[0]);
+	if (mxms_version(mxm) >= 0x0300)
+		data |= (u64)ROM16(pdata[4]) << 32;
+
+	desc->outp_type = (data & 0x00000000000000f0ULL) >> 4;
+	desc->ddc_port  = (data & 0x0000000000000f00ULL) >> 8;
+	desc->conn_type = (data & 0x000000000001f000ULL) >> 12;
+	desc->dig_conn  = (data & 0x0000000000780000ULL) >> 19;
+}