summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nouveau_mxm.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_mxm.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mxm.c723
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;
-}
OpenPOWER on IntegriCloud