Merge branch 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next

This is a major rework of the nouveau driver core, to reflect more closely
how the hw is used and to make it easier to implement newer features now
that the GPUs are more clearly understood than when nouveau started.

It also contains a few other bits:
thermal patches
nv41/44 pcie gart fixes
i2c unregistering fixes.

* 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (191 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

Conflicts:
	drivers/gpu/drm/nouveau/nouveau_dp.c

1 files changed, 135 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/mxm.c b/drivers/gpu/drm/nouveau/core/subdev/bios/mxm.c
new file mode 100644
index 000000000000..2610b11a99b3
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/core/subdev/bios/mxm.c
@@ -0,0 +1,135 @@
+/*
+ * 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 nouveau_bios *bios, u8 *ver, u8 *hdr)
+{
+	struct bit_entry x;
+
+	if (bit_entry(bios, 'x', &x)) {
+		nv_debug(bios, "BIT 'x' table not present\n");
+		return 0x0000;
+	}
+
+	*ver = x.version;
+	*hdr = x.length;
+	if (*ver != 1 || *hdr < 3) {
+		nv_warn(bios, "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 nv84_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv92_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv94_sor_map[16] = {
+	0x00, 0x14, 0x24, 0x11, 0x34, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv98_sor_map[16] = {
+	0x00, 0x14, 0x12, 0x11, 0x00, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+u8
+mxm_sor_map(struct nouveau_bios *bios, u8 conn)
+{
+	u8  ver, hdr;
+	u16 mxm = mxm_table(bios, &ver, &hdr);
+	if (mxm && hdr >= 6) {
+		u16 map = nv_ro16(bios, mxm + 4);
+		if (map) {
+			ver = nv_ro08(bios, map);
+			if (ver == 0x10) {
+				if (conn < nv_ro08(bios, map + 3)) {
+					map += nv_ro08(bios, map + 1);
+					map += conn;
+					return nv_ro08(bios, map);
+				}
+
+				return 0x00;
+			}
+
+			nv_warn(bios, "unknown sor map v%02x\n", ver);
+		}
+	}
+
+	if (bios->version.chip == 0x84 || bios->version.chip == 0x86)
+		return nv84_sor_map[conn];
+	if (bios->version.chip == 0x92)
+		return nv92_sor_map[conn];
+	if (bios->version.chip == 0x94 || bios->version.chip == 0x96)
+		return nv94_sor_map[conn];
+	if (bios->version.chip == 0x98)
+		return nv98_sor_map[conn];
+
+	nv_warn(bios, "missing sor map\n");
+	return 0x00;
+}
+
+u8
+mxm_ddc_map(struct nouveau_bios *bios, u8 port)
+{
+	u8  ver, hdr;
+	u16 mxm = mxm_table(bios, &ver, &hdr);
+	if (mxm && hdr >= 8) {
+		u16 map = nv_ro16(bios, mxm + 6);
+		if (map) {
+			ver = nv_ro08(bios, map);
+			if (ver == 0x10) {
+				if (port < nv_ro08(bios, map + 3)) {
+					map += nv_ro08(bios, map + 1);
+					map += port;
+					return nv_ro08(bios, map);
+				}
+
+				return 0x00;
+			}
+
+			nv_warn(bios, "unknown ddc map v%02x\n", ver);
+		}
+	}
+
+	/* v2.x: directly write port as dcb i2cidx */
+	return (port << 4) | port;
+}