Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 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
  ...

1 files changed, 0 insertions, 723 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_mxm.c b/drivers/gpu/drm/nouveau/nouveau_mxm.c
deleted file mode 100644
index d07f4a3310b9..000000000000
--- a/drivers/gpu/drm/nouveau/nouveau_mxm.c
+++ /dev/null
@@ -1,723 +0,0 @@
-/*
- * Copyright 2011 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 <linux/acpi.h>
-
-#include <drm/drmP.h>
-#include "nouveau_drv.h"
-
-#define MXM_DBG(dev, fmt, args...) NV_DEBUG((dev), "MXM: " fmt, ##args)
-#define MXM_MSG(dev, fmt, args...) NV_INFO((dev), "MXM: " fmt, ##args)
-
-static u8 *
-mxms_data(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	return dev_priv->mxms;
-
-}
-
-static u16
-mxms_version(struct drm_device *dev)
-{
-	u8 *mxms = mxms_data(dev);
-	u16 version = (mxms[4] << 8) | mxms[5];
-	switch (version ) {
-	case 0x0200:
-	case 0x0201:
-	case 0x0300:
-		return version;
-	default:
-		break;
-	}
-
-	MXM_DBG(dev, "unknown version %d.%d\n", mxms[4], mxms[5]);
-	return 0x0000;
-}
-
-static u16
-mxms_headerlen(struct drm_device *dev)
-{
-	return 8;
-}
-
-static u16
-mxms_structlen(struct drm_device *dev)
-{
-	return *(u16 *)&mxms_data(dev)[6];
-}
-
-static bool
-mxms_checksum(struct drm_device *dev)
-{
-	u16 size = mxms_headerlen(dev) + mxms_structlen(dev);
-	u8 *mxms = mxms_data(dev), sum = 0;
-	while (size--)
-		sum += *mxms++;
-	if (sum) {
-		MXM_DBG(dev, "checksum invalid\n");
-		return false;
-	}
-	return true;
-}
-
-static bool
-mxms_valid(struct drm_device *dev)
-{
-	u8 *mxms = mxms_data(dev);
-	if (*(u32 *)mxms != 0x5f4d584d) {
-		MXM_DBG(dev, "signature invalid\n");
-		return false;
-	}
-
-	if (!mxms_version(dev) || !mxms_checksum(dev))
-		return false;
-
-	return true;
-}
-
-static bool
-mxms_foreach(struct drm_device *dev, u8 types,
-	     bool (*exec)(struct drm_device *, u8 *, void *), void *info)
-{
-	u8 *mxms = mxms_data(dev);
-	u8 *desc = mxms + mxms_headerlen(dev);
-	u8 *fini = desc + mxms_structlen(dev) - 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(dev) >= 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(dev) >= 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:
-			MXM_DBG(dev, "unknown descriptor type %d\n", type);
-			return false;
-		}
-
-		if ((drm_debug & DRM_UT_DRIVER) && (exec == NULL)) {
-			static const char * mxms_desc_name[] = {
-				"ODS", "SCCS", "TS", "IPS",
-				"GSD", "VSS", "BCS", "FCS",
-			};
-			u8 *dump = desc;
-			int i, j;
-
-			MXM_DBG(dev, "%4s: ", mxms_desc_name[type]);
-			for (j = headerlen - 1; j >= 0; j--)
-				printk("%02x", dump[j]);
-			printk("\n");
-			dump += headerlen;
-
-			for (i = 0; i < entries; i++, dump += recordlen) {
-				MXM_DBG(dev, "      ");
-				for (j = recordlen - 1; j >= 0; j--)
-					printk("%02x", dump[j]);
-				printk("\n");
-			}
-		}
-
-		if (types & (1 << type)) {
-			if (!exec(dev, desc, info))
-				return false;
-		}
-
-		desc += headerlen + (entries * recordlen);
-	}
-
-	return true;
-}
-
-static u8 *
-mxm_table(struct drm_device *dev, u8 *size)
-{
-	struct bit_entry x;
-
-	if (bit_table(dev, 'x', &x)) {
-		MXM_DBG(dev, "BIT 'x' table not present\n");
-		return NULL;
-	}
-
-	if (x.version != 1 || x.length < 3) {
-		MXM_MSG(dev, "BIT x table %d/%d unknown\n",
-			x.version, x.length);
-		return NULL;
-	}
-
-	*size = x.length;
-	return x.data;
-}
-
-/* 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 nv96_sor_map[16] = {
-	0x00, 0x14, 0x24, 0x00, 0x34, 0x00, 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
-};
-
-static u8
-mxm_sor_map(struct drm_device *dev, u8 conn)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	u8 len, *mxm = mxm_table(dev, &len);
-	if (mxm && len >= 6) {
-		u8 *map = ROMPTR(dev, mxm[4]);
-		if (map) {
-			if (map[0] == 0x10) {
-				if (conn < map[3])
-					return map[map[1] + conn];
-				return 0x00;
-			}
-
-			MXM_MSG(dev, "unknown sor map 0x%02x\n", map[0]);
-		}
-	}
-
-	if (dev_priv->chipset == 0x84 || dev_priv->chipset == 0x86)
-		return nv84_sor_map[conn];
-	if (dev_priv->chipset == 0x92)
-		return nv92_sor_map[conn];
-	if (dev_priv->chipset == 0x94)
-		return nv94_sor_map[conn];
-	if (dev_priv->chipset == 0x96)
-		return nv96_sor_map[conn];
-	if (dev_priv->chipset == 0x98)
-		return nv98_sor_map[conn];
-
-	MXM_MSG(dev, "missing sor map\n");
-	return 0x00;
-}
-
-static u8
-mxm_ddc_map(struct drm_device *dev, u8 port)
-{
-	u8 len, *mxm = mxm_table(dev, &len);
-	if (mxm && len >= 8) {
-		u8 *map = ROMPTR(dev, mxm[6]);
-		if (map) {
-			if (map[0] == 0x10) {
-				if (port < map[3])
-					return map[map[1] + port];
-				return 0x00;
-			}
-
-			MXM_MSG(dev, "unknown ddc map 0x%02x\n", map[0]);
-		}
-	}
-
-	/* v2.x: directly write port as dcb i2cidx */
-	return (port << 4) | port;
-}
-
-struct mxms_odev {
-	u8 outp_type;
-	u8 conn_type;
-	u8 ddc_port;
-	u8 dig_conn;
-};
-
-static void
-mxms_output_device(struct drm_device *dev, u8 *pdata, struct mxms_odev *desc)
-{
-	u64 data = ROM32(pdata[0]);
-	if (mxms_version(dev) >= 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;
-}
-
-struct context {
-	u32 *outp;
-	struct mxms_odev desc;
-};
-
-static bool
-mxm_match_tmds_partner(struct drm_device *dev, u8 *data, void *info)
-{
-	struct context *ctx = info;
-	struct mxms_odev desc;
-
-	mxms_output_device(dev, data, &desc);
-	if (desc.outp_type == 2 &&
-	    desc.dig_conn == ctx->desc.dig_conn)
-		return false;
-	return true;
-}
-
-static bool
-mxm_match_dcb(struct drm_device *dev, u8 *data, void *info)
-{
-	struct context *ctx = info;
-	u64 desc = *(u64 *)data;
-
-	mxms_output_device(dev, data, &ctx->desc);
-
-	/* match dcb encoder type to mxm-ods device type */
-	if ((ctx->outp[0] & 0x0000000f) != ctx->desc.outp_type)
-		return true;
-
-	/* digital output, have some extra stuff to match here, there's a
-	 * table in the vbios that provides a mapping from the mxm digital
-	 * connection enum values to SOR/link
-	 */
-	if ((desc & 0x00000000000000f0) >= 0x20) {
-		/* check against sor index */
-		u8 link = mxm_sor_map(dev, ctx->desc.dig_conn);
-		if ((ctx->outp[0] & 0x0f000000) != (link & 0x0f) << 24)
-			return true;
-
-		/* check dcb entry has a compatible link field */
-		link = (link & 0x30) >> 4;
-		if ((link & ((ctx->outp[1] & 0x00000030) >> 4)) != link)
-			return true;
-	}
-
-	/* mark this descriptor accounted for by setting invalid device type,
-	 * except of course some manufactures don't follow specs properly and
-	 * we need to avoid killing off the TMDS function on DP connectors
-	 * if MXM-SIS is missing an entry for it.
-	 */
-	data[0] &= ~0xf0;
-	if (ctx->desc.outp_type == 6 && ctx->desc.conn_type == 6 &&
-	    mxms_foreach(dev, 0x01, mxm_match_tmds_partner, ctx)) {
-		data[0] |= 0x20; /* modify descriptor to match TMDS now */
-	} else {
-		data[0] |= 0xf0;
-	}
-
-	return false;
-}
-
-static int
-mxm_dcb_sanitise_entry(struct drm_device *dev, void *data, int idx, u8 *dcbe)
-{
-	struct context ctx = { .outp = (u32 *)dcbe };
-	u8 type, i2cidx, link;
-	u8 *conn;
-
-	/* look for an output device structure that matches this dcb entry.
-	 * if one isn't found, disable it.
-	 */
-	if (mxms_foreach(dev, 0x01, mxm_match_dcb, &ctx)) {
-		MXM_DBG(dev, "disable %d: 0x%08x 0x%08x\n",
-			idx, ctx.outp[0], ctx.outp[1]);
-		ctx.outp[0] |= 0x0000000f;
-		return 0;
-	}
-
-	/* modify the output's ddc/aux port, there's a pointer to a table
-	 * with the mapping from mxm ddc/aux port to dcb i2c_index in the
-	 * vbios mxm table
-	 */
-	i2cidx = mxm_ddc_map(dev, ctx.desc.ddc_port);
-	if ((ctx.outp[0] & 0x0000000f) != OUTPUT_DP)
-		i2cidx = (i2cidx & 0x0f) << 4;
-	else
-		i2cidx = (i2cidx & 0xf0);
-
-	if (i2cidx != 0xf0) {
-		ctx.outp[0] &= ~0x000000f0;
-		ctx.outp[0] |= i2cidx;
-	}
-
-	/* override dcb sorconf.link, based on what mxm data says */
-	switch (ctx.desc.outp_type) {
-	case 0x00: /* Analog CRT */
-	case 0x01: /* Analog TV/HDTV */
-		break;
-	default:
-		link = mxm_sor_map(dev, ctx.desc.dig_conn) & 0x30;
-		ctx.outp[1] &= ~0x00000030;
-		ctx.outp[1] |= link;
-		break;
-	}
-
-	/* we may need to fixup various other vbios tables based on what
-	 * the descriptor says the connector type should be.
-	 *
-	 * in a lot of cases, the vbios tables will claim DVI-I is possible,
-	 * and the mxm data says the connector is really HDMI.  another
-	 * common example is DP->eDP.
-	 */
-	conn = dcb_conn(dev, (ctx.outp[0] & 0x0000f000) >> 12);
-	type = conn[0];
-	switch (ctx.desc.conn_type) {
-	case 0x01: /* LVDS */
-		ctx.outp[1] |= 0x00000004; /* use_power_scripts */
-		/* XXX: modify default link width in LVDS table */
-		break;
-	case 0x02: /* HDMI */
-		type = DCB_CONNECTOR_HDMI_1;
-		break;
-	case 0x03: /* DVI-D */
-		type = DCB_CONNECTOR_DVI_D;
-		break;
-	case 0x0e: /* eDP, falls through to DPint */
-		ctx.outp[1] |= 0x00010000;
-	case 0x07: /* DP internal, wtf is this?? HP8670w */
-		ctx.outp[1] |= 0x00000004; /* use_power_scripts? */
-		type = DCB_CONNECTOR_eDP;
-		break;
-	default:
-		break;
-	}
-
-	if (mxms_version(dev) >= 0x0300)
-		conn[0] = type;
-
-	return 0;
-}
-
-static bool
-mxm_show_unmatched(struct drm_device *dev, u8 *data, void *info)
-{
-	u64 desc = *(u64 *)data;
-	if ((desc & 0xf0) != 0xf0)
-		MXM_MSG(dev, "unmatched output device 0x%016llx\n", desc);
-	return true;
-}
-
-static void
-mxm_dcb_sanitise(struct drm_device *dev)
-{
-	u8 *dcb = dcb_table(dev);
-	if (!dcb || dcb[0] != 0x40) {
-		MXM_DBG(dev, "unsupported DCB version\n");
-		return;
-	}
-
-	dcb_outp_foreach(dev, NULL, mxm_dcb_sanitise_entry);
-	mxms_foreach(dev, 0x01, mxm_show_unmatched, NULL);
-}
-
-static bool
-mxm_shadow_rom_fetch(struct nouveau_i2c_chan *i2c, u8 addr,
-		     u8 offset, u8 size, u8 *data)
-{
-	struct i2c_msg msgs[] = {
-		{ .addr = addr, .flags = 0, .len = 1, .buf = &offset },
-		{ .addr = addr, .flags = I2C_M_RD, .len = size, .buf = data, },
-	};
-
-	return i2c_transfer(&i2c->adapter, msgs, 2) == 2;
-}
-
-static bool
-mxm_shadow_rom(struct drm_device *dev, u8 version)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_i2c_chan *i2c = NULL;
-	u8 i2cidx, mxms[6], addr, size;
-
-	i2cidx = mxm_ddc_map(dev, 1 /* LVDS_DDC */) & 0x0f;
-	if (i2cidx < 0x0f)
-		i2c = nouveau_i2c_find(dev, i2cidx);
-	if (!i2c)
-		return false;
-
-	addr = 0x54;
-	if (!mxm_shadow_rom_fetch(i2c, addr, 0, 6, mxms)) {
-		addr = 0x56;
-		if (!mxm_shadow_rom_fetch(i2c, addr, 0, 6, mxms))
-			return false;
-	}
-
-	dev_priv->mxms = mxms;
-	size = mxms_headerlen(dev) + mxms_structlen(dev);
-	dev_priv->mxms = kmalloc(size, GFP_KERNEL);
-
-	if (dev_priv->mxms &&
-	    mxm_shadow_rom_fetch(i2c, addr, 0, size, dev_priv->mxms))
-		return true;
-
-	kfree(dev_priv->mxms);
-	dev_priv->mxms = NULL;
-	return false;
-}
-
-#if defined(CONFIG_ACPI)
-static bool
-mxm_shadow_dsm(struct drm_device *dev, u8 version)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	static char muid[] = {
-		0x00, 0xA4, 0x04, 0x40, 0x7D, 0x91, 0xF2, 0x4C,
-		0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65
-	};
-	u32 mxms_args[] = { 0x00000000 };
-	union acpi_object args[4] = {
-		/* _DSM MUID */
-		{ .buffer.type = 3,
-		  .buffer.length = sizeof(muid),
-		  .buffer.pointer = muid,
-		},
-		/* spec says this can be zero to mean "highest revision", but
-		 * of course there's at least one bios out there which fails
-		 * unless you pass in exactly the version it supports..
-		 */
-		{ .integer.type = ACPI_TYPE_INTEGER,
-		  .integer.value = (version & 0xf0) << 4 | (version & 0x0f),
-		},
-		/* MXMS function */
-		{ .integer.type = ACPI_TYPE_INTEGER,
-		  .integer.value = 0x00000010,
-		},
-		/* Pointer to MXMS arguments */
-		{ .buffer.type = ACPI_TYPE_BUFFER,
-		  .buffer.length = sizeof(mxms_args),
-		  .buffer.pointer = (char *)mxms_args,
-		},
-	};
-	struct acpi_object_list list = { ARRAY_SIZE(args), args };
-	struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_handle handle;
-	int ret;
-
-	handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
-	if (!handle)
-		return false;
-
-	ret = acpi_evaluate_object(handle, "_DSM", &list, &retn);
-	if (ret) {
-		MXM_DBG(dev, "DSM MXMS failed: %d\n", ret);
-		return false;
-	}
-
-	obj = retn.pointer;
-	if (obj->type == ACPI_TYPE_BUFFER) {
-		dev_priv->mxms = kmemdup(obj->buffer.pointer,
-					 obj->buffer.length, GFP_KERNEL);
-	} else
-	if (obj->type == ACPI_TYPE_INTEGER) {
-		MXM_DBG(dev, "DSM MXMS returned 0x%llx\n", obj->integer.value);
-	}
-
-	kfree(obj);
-	return dev_priv->mxms != NULL;
-}
-#endif
-
-#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
-
-#define WMI_WMMX_GUID "F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0"
-
-static u8
-wmi_wmmx_mxmi(struct drm_device *dev, u8 version)
-{
-	u32 mxmi_args[] = { 0x494D584D /* MXMI */, version, 0 };
-	struct acpi_buffer args = { sizeof(mxmi_args), mxmi_args };
-	struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_status status;
-
-	status = wmi_evaluate_method(WMI_WMMX_GUID, 0, 0, &args, &retn);
-	if (ACPI_FAILURE(status)) {
-		MXM_DBG(dev, "WMMX MXMI returned %d\n", status);
-		return 0x00;
-	}
-
-	obj = retn.pointer;
-	if (obj->type == ACPI_TYPE_INTEGER) {
-		version = obj->integer.value;
-		MXM_DBG(dev, "WMMX MXMI version %d.%d\n",
-			     (version >> 4), version & 0x0f);
-	} else {
-		version = 0;
-		MXM_DBG(dev, "WMMX MXMI returned non-integer\n");
-	}
-
-	kfree(obj);
-	return version;
-}
-
-static bool
-mxm_shadow_wmi(struct drm_device *dev, u8 version)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	u32 mxms_args[] = { 0x534D584D /* MXMS */, version, 0 };
-	struct acpi_buffer args = { sizeof(mxms_args), mxms_args };
-	struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	acpi_status status;
-
-	if (!wmi_has_guid(WMI_WMMX_GUID)) {
-		MXM_DBG(dev, "WMMX GUID not found\n");
-		return false;
-	}
-
-	mxms_args[1] = wmi_wmmx_mxmi(dev, 0x00);
-	if (!mxms_args[1])
-		mxms_args[1] = wmi_wmmx_mxmi(dev, version);
-	if (!mxms_args[1])
-		return false;
-
-	status = wmi_evaluate_method(WMI_WMMX_GUID, 0, 0, &args, &retn);
-	if (ACPI_FAILURE(status)) {
-		MXM_DBG(dev, "WMMX MXMS returned %d\n", status);
-		return false;
-	}
-
-	obj = retn.pointer;
-	if (obj->type == ACPI_TYPE_BUFFER) {
-		dev_priv->mxms = kmemdup(obj->buffer.pointer,
-					 obj->buffer.length, GFP_KERNEL);
-	}
-
-	kfree(obj);
-	return dev_priv->mxms != NULL;
-}
-#endif
-
-struct mxm_shadow_h {
-	const char *name;
-	bool (*exec)(struct drm_device *, u8 version);
-} _mxm_shadow[] = {
-	{ "ROM", mxm_shadow_rom },
-#if defined(CONFIG_ACPI)
-	{ "DSM", mxm_shadow_dsm },
-#endif
-#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
-	{ "WMI", mxm_shadow_wmi },
-#endif
-	{}
-};
-
-static int
-mxm_shadow(struct drm_device *dev, u8 version)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct mxm_shadow_h *shadow = _mxm_shadow;
-	do {
-		MXM_DBG(dev, "checking %s\n", shadow->name);
-		if (shadow->exec(dev, version)) {
-			if (mxms_valid(dev))
-				return 0;
-			kfree(dev_priv->mxms);
-			dev_priv->mxms = NULL;
-		}
-	} while ((++shadow)->name);
-	return -ENOENT;
-}
-
-int
-nouveau_mxm_init(struct drm_device *dev)
-{
-	u8 mxm_size, *mxm = mxm_table(dev, &mxm_size);
-	if (!mxm || !mxm[0]) {
-		MXM_MSG(dev, "no VBIOS data, nothing to do\n");
-		return 0;
-	}
-
-	MXM_MSG(dev, "BIOS version %d.%d\n", mxm[0] >> 4, mxm[0] & 0x0f);
-
-	if (mxm_shadow(dev, mxm[0])) {
-		MXM_MSG(dev, "failed to locate valid SIS\n");
-#if 0
-		/* we should, perhaps, fall back to some kind of limited
-		 * mode here if the x86 vbios hasn't already done the
-		 * work for us (so we prevent loading with completely
-		 * whacked vbios tables).
-		 */
-		return -EINVAL;
-#else
-		return 0;
-#endif
-	}
-
-	MXM_MSG(dev, "MXMS Version %d.%d\n",
-		mxms_version(dev) >> 8, mxms_version(dev) & 0xff);
-	mxms_foreach(dev, 0, NULL, NULL);
-
-	if (nouveau_mxmdcb)
-		mxm_dcb_sanitise(dev);
-	return 0;
-}
-
-void
-nouveau_mxm_fini(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	kfree(dev_priv->mxms);
-	dev_priv->mxms = NULL;
-}