/*
* Copyright 2005 - 2006 Erik Waling
* Copyright 2006 Stephane Marchesin
* Copyright 2007 - 2009 Stuart Bennett
*
* 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 AUTHORS 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 .
*/
#include "nouveau_drv.h"
#include "nouveau_bios.h"
#include "nouveau_reg.h"
#include "dispnv04/hw.h"
#include "nouveau_encoder.h"
#include <subdev/gsp.h>
#include <linux/io-mapping.h>
#include <linux/firmware.h>
/* these defines are made up */
#define NV_CIO_CRE_44_HEADA 0 x0
#define NV_CIO_CRE_44_HEADB 0 x3
#define FEATURE_MOBILE 0 x10 /* also FEATURE_QUADRO for BMP */
#define EDID1_LEN 128
#define BIOSLOG(sip, fmt, arg...) NV_DEBUG(sip->dev, fmt, ## arg)
#define LOG_OLD_VALUE(x)
static bool nv_cksum(const uint8_t *data, unsigned int length)
{
/*
* There ' s a few checksums in the BIOS , so here ' s a generic checking
* function .
*/
int i;
uint8_t sum = 0 ;
for (i = 0 ; i < length; i++)
sum += data[i];
if (sum)
return true ;
return false ;
}
static uint16_t clkcmptable(struct nvbios *bios, uint16_t clktable, int pxclk)
{
int compare_record_len, i = 0 ;
uint16_t compareclk, scriptptr = 0 ;
if (bios->major_version < 5 ) /* pre BIT */
compare_record_len = 3 ;
else
compare_record_len = 4 ;
do {
compareclk = ROM16(bios->data[clktable + compare_record_len * i]);
if (pxclk >= compareclk * 10 ) {
if (bios->major_version < 5 ) {
uint8_t tmdssub = bios->data[clktable + 2 + compare_record_len * i];
scriptptr = ROM16(bios->data[bios->init_script_tbls_ptr + tmdssub * 2 ]);
} else
scriptptr = ROM16(bios->data[clktable + 2 + compare_record_len * i]);
break ;
}
i++;
} while (compareclk);
return scriptptr;
}
static void
run_digital_op_script(struct drm_device *dev, uint16_t scriptptr,
struct dcb_output *dcbent, int head, bool dl)
{
struct nouveau_drm *drm = nouveau_drm(dev);
NV_INFO(drm, "0x%04X: Parsing digital output script table\n" ,
scriptptr);
NVWriteVgaCrtc(dev, 0 , NV_CIO_CRE_44, head ? NV_CIO_CRE_44_HEADB :
NV_CIO_CRE_44_HEADA);
nouveau_bios_run_init_table(dev, scriptptr, dcbent, head);
nv04_dfp_bind_head(dev, dcbent, head, dl);
}
static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
uint8_t sub = bios->data[bios->fp.xlated_entry + script] + (bios->fp.link_c_increment && dcbent->or & DCB_OUTPUT_C ? 1 : 0 );
uint16_t scriptofs = ROM16(bios->data[bios->init_script_tbls_ptr + sub * 2 ]);
#ifdef __powerpc__
struct pci_dev *pdev = to_pci_dev(dev->dev);
#endif
if (!bios->fp.xlated_entry || !sub || !scriptofs)
return -EINVAL;
run_digital_op_script(dev, scriptofs, dcbent, head, bios->fp.dual_link);
if (script == LVDS_PANEL_OFF) {
/* off-on delay in ms */
mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7 ]));
}
#ifdef __powerpc__
/* Powerbook specific quirks */
if (script == LVDS_RESET &&
(pdev->device == 0 x0179 || pdev->device == 0 x0189 ||
pdev->device == 0 x0329))
nv_write_tmds(dev, dcbent->or , 0 , 0 x02, 0 x72);
#endif
return 0 ;
}
static int run_lvds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk)
{
/*
* The BIT LVDS table ' s header has the information to setup the
* necessary registers . Following the standard 4 byte header are :
* A bitmask byte and a dual - link transition pxclk value for use in
* selecting the init script when not using straps ; 4 script pointers
* for panel power , selected by output and on / off ; and 8 table pointers
* for panel init , the needed one determined by output , and bits in the
* conf byte . These tables are similar to the TMDS tables , consisting
* of a list of pxclks and script pointers .
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
unsigned int outputset = (dcbent->or == 4 ) ? 1 : 0 ;
uint16_t scriptptr = 0 , clktable;
/*
* For now we assume version 3 . 0 table - g80 support will need some
* changes
*/
switch (script) {
case LVDS_INIT:
return -ENOSYS;
case LVDS_BACKLIGHT_ON:
case LVDS_PANEL_ON:
scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 7 + outputset * 2 ]);
break ;
case LVDS_BACKLIGHT_OFF:
case LVDS_PANEL_OFF:
scriptptr = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 11 + outputset * 2 ]);
break ;
case LVDS_RESET:
clktable = bios->fp.lvdsmanufacturerpointer + 15 ;
if (dcbent->or == 4 )
clktable += 8 ;
if (dcbent->lvdsconf.use_straps_for_mode) {
if (bios->fp.dual_link)
clktable += 4 ;
if (bios->fp.if_is_24bit)
clktable += 2 ;
} else {
/* using EDID */
int cmpval_24bit = (dcbent->or == 4 ) ? 4 : 1 ;
if (bios->fp.dual_link) {
clktable += 4 ;
cmpval_24bit <<= 1 ;
}
if (bios->fp.strapless_is_24bit & cmpval_24bit)
clktable += 2 ;
}
clktable = ROM16(bios->data[clktable]);
if (!clktable) {
NV_ERROR(drm, "Pixel clock comparison table not found\n" );
return -ENOENT;
}
scriptptr = clkcmptable(bios, clktable, pxclk);
}
if (!scriptptr) {
NV_ERROR(drm, "LVDS output init script not found\n" );
return -ENOENT;
}
run_digital_op_script(dev, scriptptr, dcbent, head, bios->fp.dual_link);
return 0 ;
}
int call_lvds_script(struct drm_device *dev, struct dcb_output *dcbent, int head, enum LVDS_script script, int pxclk)
{
/*
* LVDS operations are multiplexed in an effort to present a single API
* which works with two vastly differing underlying structures .
* This acts as the demux
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_object *device = &drm->client.device.object;
struct nvbios *bios = &drm->vbios;
uint8_t lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
uint32_t sel_clk_binding, sel_clk;
int ret;
if (bios->fp.last_script_invoc == (script << 1 | head) || !lvds_ver ||
(lvds_ver >= 0 x30 && script == LVDS_INIT))
return 0 ;
if (!bios->fp.lvds_init_run) {
bios->fp.lvds_init_run = true ;
call_lvds_script(dev, dcbent, head, LVDS_INIT, pxclk);
}
if (script == LVDS_PANEL_ON && bios->fp.reset_after_pclk_change)
call_lvds_script(dev, dcbent, head, LVDS_RESET, pxclk);
if (script == LVDS_RESET && bios->fp.power_off_for_reset)
call_lvds_script(dev, dcbent, head, LVDS_PANEL_OFF, pxclk);
NV_INFO(drm, "Calling LVDS script %d:\n" , script);
/* don't let script change pll->head binding */
sel_clk_binding = nvif_rd32(device, NV_PRAMDAC_SEL_CLK) & 0 x50000;
if (lvds_ver < 0 x30)
ret = call_lvds_manufacturer_script(dev, dcbent, head, script);
else
ret = run_lvds_table(dev, dcbent, head, script, pxclk);
bios->fp.last_script_invoc = (script << 1 | head);
sel_clk = NVReadRAMDAC(dev, 0 , NV_PRAMDAC_SEL_CLK) & ~0 x50000;
NVWriteRAMDAC(dev, 0 , NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
/* some scripts set a value in NV_PBUS_POWERCTRL_2 and break video overlay */
nvif_wr32(device, NV_PBUS_POWERCTRL_2, 0 );
return ret;
}
struct lvdstableheader {
uint8_t lvds_ver, headerlen, recordlen;
};
static int parse_lvds_manufacturer_table_header(struct drm_device *dev, struct nvbios *bios, struct lvdstableheader *lth)
{
/*
* BMP version ( 0 xa ) LVDS table has a simple header of version and
* record length . The BIT LVDS table has the typical BIT table header :
* version byte , header length byte , record length byte , and a byte for
* the maximum number of records that can be held in the table .
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint8_t lvds_ver, headerlen, recordlen;
memset(lth, 0 , sizeof (struct lvdstableheader));
if (bios->fp.lvdsmanufacturerpointer == 0 x0) {
NV_ERROR(drm, "Pointer to LVDS manufacturer table invalid\n" );
return -EINVAL;
}
lvds_ver = bios->data[bios->fp.lvdsmanufacturerpointer];
switch (lvds_ver) {
case 0 x0a: /* pre NV40 */
headerlen = 2 ;
recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1 ];
break ;
case 0 x30: /* NV4x */
headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1 ];
if (headerlen < 0 x1f) {
NV_ERROR(drm, "LVDS table header not understood\n" );
return -EINVAL;
}
recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2 ];
break ;
case 0 x40: /* G80/G90 */
headerlen = bios->data[bios->fp.lvdsmanufacturerpointer + 1 ];
if (headerlen < 0 x7) {
NV_ERROR(drm, "LVDS table header not understood\n" );
return -EINVAL;
}
recordlen = bios->data[bios->fp.lvdsmanufacturerpointer + 2 ];
break ;
default :
NV_ERROR(drm,
"LVDS table revision %d.%d not currently supported\n" ,
lvds_ver >> 4 , lvds_ver & 0 xf);
return -ENOSYS;
}
lth->lvds_ver = lvds_ver;
lth->headerlen = headerlen;
lth->recordlen = recordlen;
return 0 ;
}
static int
get_fp_strap(struct drm_device *dev, struct nvbios *bios)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_object *device = &drm->client.device.object;
/*
* The fp strap is normally dictated by the " User Strap " in
* PEXTDEV_BOOT_0 [ 20 : 16 ] , but on BMP cards when bit 2 of the
* Internal_Flags struct at 0 x48 is set , the user strap gets overriden
* by the PCI subsystem ID during POST , but not before the previous user
* strap has been committed to CR58 for CR57 = 0 xf on head A , which may be
* read and used instead
*/
if (bios->major_version < 5 && bios->data[0 x48] & 0 x4)
return NVReadVgaCrtc5758(dev, 0 , 0 xf) & 0 xf;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_MAXWELL)
return nvif_rd32(device, 0 x001800) & 0 x0000000f;
else
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 24 ) & 0 xf;
else
return (nvif_rd32(device, NV_PEXTDEV_BOOT_0) >> 16 ) & 0 xf;
}
static int parse_fp_mode_table(struct drm_device *dev, struct nvbios *bios)
{
struct nouveau_drm *drm = nouveau_drm(dev);
uint8_t *fptable;
uint8_t fptable_ver, headerlen = 0 , recordlen, fpentries = 0 xf, fpindex;
int ret, ofs, fpstrapping;
struct lvdstableheader lth;
if (bios->fp.fptablepointer == 0 x0) {
/* Most laptop cards lack an fp table. They use DDC. */
NV_DEBUG(drm, "Pointer to flat panel table invalid\n" );
bios->digital_min_front_porch = 0 x4b;
return 0 ;
}
fptable = &bios->data[bios->fp.fptablepointer];
fptable_ver = fptable[0 ];
switch (fptable_ver) {
/*
* BMP version 0 x5 . 0 x11 BIOSen have version 1 like tables , but no
* version field , and miss one of the spread spectrum / PWM bytes .
* This could affect early GF2Go parts ( not seen any appropriate ROMs
* though ) . Here we assume that a version of 0 x05 matches this case
* ( combining with a BMP version check would be better ) , as the
* common case for the panel type field is 0 x0005 , and that is in
* fact what we are reading the first byte of .
*/
case 0 x05: /* some NV10, 11, 15, 16 */
recordlen = 42 ;
ofs = -1 ;
break ;
case 0 x10: /* some NV15/16, and NV11+ */
recordlen = 44 ;
ofs = 0 ;
break ;
case 0 x20: /* NV40+ */
headerlen = fptable[1 ];
recordlen = fptable[2 ];
fpentries = fptable[3 ];
/*
* fptable [ 4 ] is the minimum
* RAMDAC_FP_HCRTC - > RAMDAC_FP_HSYNC_START gap
*/
bios->digital_min_front_porch = fptable[4 ];
ofs = -7 ;
break ;
default :
NV_ERROR(drm,
"FP table revision %d.%d not currently supported\n" ,
fptable_ver >> 4 , fptable_ver & 0 xf);
return -ENOSYS;
}
if (!bios->is_mobile) /* !mobile only needs digital_min_front_porch */
return 0 ;
ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
if (ret)
return ret;
if (lth.lvds_ver == 0 x30 || lth.lvds_ver == 0 x40) {
bios->fp.fpxlatetableptr = bios->fp.lvdsmanufacturerpointer +
lth.headerlen + 1 ;
bios->fp.xlatwidth = lth.recordlen;
}
if (bios->fp.fpxlatetableptr == 0 x0) {
NV_ERROR(drm, "Pointer to flat panel xlat table invalid\n" );
return -EINVAL;
}
fpstrapping = get_fp_strap(dev, bios);
fpindex = bios->data[bios->fp.fpxlatetableptr +
fpstrapping * bios->fp.xlatwidth];
if (fpindex > fpentries) {
NV_ERROR(drm, "Bad flat panel table index\n" );
return -ENOENT;
}
/* nv4x cards need both a strap value and fpindex of 0xf to use DDC */
if (lth.lvds_ver > 0 x10)
bios->fp_no_ddc = fpstrapping != 0 xf || fpindex != 0 xf;
/*
* If either the strap or xlated fpindex value are 0 xf there is no
* panel using a strap - derived bios mode present . this condition
* includes , but is different from , the DDC panel indicator above
*/
if (fpstrapping == 0 xf || fpindex == 0 xf)
return 0 ;
bios->fp.mode_ptr = bios->fp.fptablepointer + headerlen +
recordlen * fpindex + ofs;
NV_INFO(drm, "BIOS FP mode: %dx%d (%dkHz pixel clock)\n" ,
ROM16(bios->data[bios->fp.mode_ptr + 11 ]) + 1 ,
ROM16(bios->data[bios->fp.mode_ptr + 25 ]) + 1 ,
ROM16(bios->data[bios->fp.mode_ptr + 7 ]) * 10 );
return 0 ;
}
bool nouveau_bios_fp_mode(struct drm_device *dev, struct drm_display_mode *mode)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
uint8_t *mode_entry = &bios->data[bios->fp.mode_ptr];
if (!mode) /* just checking whether we can produce a mode */
return bios->fp.mode_ptr;
memset(mode, 0 , sizeof (struct drm_display_mode));
/*
* For version 1 . 0 ( version in byte 0 ) :
* bytes 1 - 2 are " panel type " , including bits on whether Colour / mono ,
* single / dual link , and type ( TFT etc . )
* bytes 3 - 6 are bits per colour in RGBX
*/
mode->clock = ROM16(mode_entry[7 ]) * 10 ;
/* bytes 9-10 is HActive */
mode->hdisplay = ROM16(mode_entry[11 ]) + 1 ;
/*
* bytes 13 - 14 is HValid Start
* bytes 15 - 16 is HValid End
*/
mode->hsync_start = ROM16(mode_entry[17 ]) + 1 ;
mode->hsync_end = ROM16(mode_entry[19 ]) + 1 ;
mode->htotal = ROM16(mode_entry[21 ]) + 1 ;
/* bytes 23-24, 27-30 similarly, but vertical */
mode->vdisplay = ROM16(mode_entry[25 ]) + 1 ;
mode->vsync_start = ROM16(mode_entry[31 ]) + 1 ;
mode->vsync_end = ROM16(mode_entry[33 ]) + 1 ;
mode->vtotal = ROM16(mode_entry[35 ]) + 1 ;
mode->flags |= (mode_entry[37 ] & 0 x10) ?
DRM_MODE_FLAG_PHSYNC : DRM_MODE_FLAG_NHSYNC;
mode->flags |= (mode_entry[37 ] & 0 x1) ?
DRM_MODE_FLAG_PVSYNC : DRM_MODE_FLAG_NVSYNC;
/*
* bytes 38 - 39 relate to spread spectrum settings
* bytes 40 - 43 are something to do with PWM
*/
mode->status = MODE_OK;
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_set_name(mode);
return bios->fp.mode_ptr;
}
int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, bool *if_is_24bit)
{
/*
* The LVDS table header is ( mostly ) described in
* parse_lvds_manufacturer_table_header ( ) : the BIT header additionally
* contains the dual - link transition pxclk ( in 10 s kHz ) , at byte 5 - if
* straps are not being used for the panel , this specifies the frequency
* at which modes should be set up in the dual link style .
*
* Following the header , the BMP ( ver 0 xa ) table has several records ,
* indexed by a separate xlat table , indexed in turn by the fp strap in
* EXTDEV_BOOT . Each record had a config byte , followed by 6 script
* numbers for use by INIT_SUB which controlled panel init and power ,
* and finally a dword of ms to sleep between power off and on
* operations .
*
* In the BIT versions , the table following the header serves as an
* integrated config and xlat table : the records in the table are
* indexed by the FP strap nibble in EXTDEV_BOOT , and each record has
* two bytes - the first as a config byte , the second for indexing the
* fp mode table pointed to by the BIT ' D ' table
*
* DDC is not used until after card init , so selecting the correct table
* entry and setting the dual link flag for EDID equipped panels ,
* requiring tests against the native - mode pixel clock , cannot be done
* until later , when this function should be called with non - zero pxclk
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
int fpstrapping = get_fp_strap(dev, bios), lvdsmanufacturerindex = 0 ;
struct lvdstableheader lth;
uint16_t lvdsofs;
int ret, chip_version = bios->chip_version;
ret = parse_lvds_manufacturer_table_header(dev, bios, <h);
if (ret)
return ret;
switch (lth.lvds_ver) {
case 0 x0a: /* pre NV40 */
lvdsmanufacturerindex = bios->data[
bios->fp.fpxlatemanufacturertableptr +
fpstrapping];
/* we're done if this isn't the EDID panel case */
if (!pxclk)
break ;
if (chip_version < 0 x25) {
/* nv17 behaviour
*
* It seems the old style lvds script pointer is reused
* to select 18 / 24 bit colour depth for EDID panels .
*/
lvdsmanufacturerindex =
(bios->legacy.lvds_single_a_script_ptr & 1 ) ?
2 : 0 ;
if (pxclk >= bios->fp.duallink_transition_clk)
lvdsmanufacturerindex++;
} else if (chip_version < 0 x30) {
/* nv28 behaviour (off-chip encoder)
*
* nv28 does a complex dance of first using byte 121 of
* the EDID to choose the lvdsmanufacturerindex , then
* later attempting to match the EDID manufacturer and
* product IDs in a table ( signature ' pidt ' ( panel id
* table ? ) ) , setting an lvdsmanufacturerindex of 0 and
* an fp strap of the match index ( or 0 xf if none )
*/
lvdsmanufacturerindex = 0 ;
} else {
/* nv31, nv34 behaviour */
lvdsmanufacturerindex = 0 ;
if (pxclk >= bios->fp.duallink_transition_clk)
lvdsmanufacturerindex = 2 ;
if (pxclk >= 140000 )
lvdsmanufacturerindex = 3 ;
}
/*
* nvidia set the high nibble of ( cr57 = f , cr58 ) to
* lvdsmanufacturerindex in this case ; we don ' t
*/
break ;
case 0 x30: /* NV4x */
case 0 x40: /* G80/G90 */
lvdsmanufacturerindex = fpstrapping;
break ;
default :
NV_ERROR(drm, "LVDS table revision not currently supported\n" );
return -ENOSYS;
}
lvdsofs = bios->fp.xlated_entry = bios->fp.lvdsmanufacturerpointer + lth.headerlen + lth.recordlen * lvdsmanufacturerindex;
switch (lth.lvds_ver) {
case 0 x0a:
bios->fp.power_off_for_reset = bios->data[lvdsofs] & 1 ;
bios->fp.reset_after_pclk_change = bios->data[lvdsofs] & 2 ;
bios->fp.dual_link = bios->data[lvdsofs] & 4 ;
bios->fp.link_c_increment = bios->data[lvdsofs] & 8 ;
*if_is_24bit = bios->data[lvdsofs] & 16 ;
break ;
case 0 x30:
case 0 x40:
/*
* No sign of the " power off for reset " or " reset for panel
* on " bits , but it ' s safer to assume we should
*/
bios->fp.power_off_for_reset = true ;
bios->fp.reset_after_pclk_change = true ;
/*
* It ' s ok lvdsofs is wrong for nv4x edid case ; dual_link is
* over - written , and if_is_24bit isn ' t used
*/
bios->fp.dual_link = bios->data[lvdsofs] & 1 ;
bios->fp.if_is_24bit = bios->data[lvdsofs] & 2 ;
bios->fp.strapless_is_24bit = bios->data[bios->fp.lvdsmanufacturerpointer + 4 ];
bios->fp.duallink_transition_clk = ROM16(bios->data[bios->fp.lvdsmanufacturerpointer + 5 ]) * 10 ;
break ;
}
/* set dual_link flag for EDID case */
if (pxclk && (chip_version < 0 x25 || chip_version > 0 x28))
bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
*dl = bios->fp.dual_link;
return 0 ;
}
int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk)
{
/*
* the pxclk parameter is in kHz
*
* This runs the TMDS regs setting code found on BIT bios cards
*
* For ffs ( or ) = = 1 use the first table , for ffs ( or ) = = 2 and
* ffs ( or ) = = 3 , use the second .
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_object *device = &drm->client.device.object;
struct nvbios *bios = &drm->vbios;
int cv = bios->chip_version;
uint16_t clktable = 0 , scriptptr;
uint32_t sel_clk_binding, sel_clk;
/* pre-nv17 off-chip tmds uses scripts, post nv17 doesn't */
if (cv >= 0 x17 && cv != 0 x1a && cv != 0 x20 &&
dcbent->location != DCB_LOC_ON_CHIP)
return 0 ;
switch (ffs(dcbent->or )) {
case 1 :
clktable = bios->tmds.output0_script_ptr;
break ;
case 2 :
case 3 :
clktable = bios->tmds.output1_script_ptr;
break ;
}
if (!clktable) {
NV_ERROR(drm, "Pixel clock comparison table not found\n" );
return -EINVAL;
}
scriptptr = clkcmptable(bios, clktable, pxclk);
if (!scriptptr) {
NV_ERROR(drm, "TMDS output init script not found\n" );
return -ENOENT;
}
/* don't let script change pll->head binding */
sel_clk_binding = nvif_rd32(device, NV_PRAMDAC_SEL_CLK) & 0 x50000;
run_digital_op_script(dev, scriptptr, dcbent, head, pxclk >= 165000 );
sel_clk = NVReadRAMDAC(dev, 0 , NV_PRAMDAC_SEL_CLK) & ~0 x50000;
NVWriteRAMDAC(dev, 0 , NV_PRAMDAC_SEL_CLK, sel_clk | sel_clk_binding);
return 0 ;
}
static void parse_script_table_pointers(struct nvbios *bios, uint16_t offset)
{
/*
* Parses the init table segment for pointers used in script execution .
*
* offset + 0 ( 16 bits ) : init script tables pointer
* offset + 2 ( 16 bits ) : macro index table pointer
* offset + 4 ( 16 bits ) : macro table pointer
* offset + 6 ( 16 bits ) : condition table pointer
* offset + 8 ( 16 bits ) : io condition table pointer
* offset + 10 ( 16 bits ) : io flag condition table pointer
* offset + 12 ( 16 bits ) : init function table pointer
*/
bios->init_script_tbls_ptr = ROM16(bios->data[offset]);
}
static int parse_bit_A_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* Parses the load detect values for g80 cards .
*
* offset + 0 ( 16 bits ) : loadval table pointer
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint16_t load_table_ptr;
uint8_t version, headerlen, entrylen, num_entries;
if (bitentry->length != 3 ) {
NV_ERROR(drm, "Do not understand BIT A table\n" );
return -EINVAL;
}
load_table_ptr = ROM16(bios->data[bitentry->offset]);
if (load_table_ptr == 0 x0) {
NV_DEBUG(drm, "Pointer to BIT loadval table invalid\n" );
return -EINVAL;
}
version = bios->data[load_table_ptr];
if (version != 0 x10) {
NV_ERROR(drm, "BIT loadval table version %d.%d not supported\n" ,
version >> 4 , version & 0 xF);
return -ENOSYS;
}
headerlen = bios->data[load_table_ptr + 1 ];
entrylen = bios->data[load_table_ptr + 2 ];
num_entries = bios->data[load_table_ptr + 3 ];
if (headerlen != 4 || entrylen != 4 || num_entries != 2 ) {
NV_ERROR(drm, "Do not understand BIT loadval table\n" );
return -EINVAL;
}
/* First entry is normal dac, 2nd tv-out perhaps? */
bios->dactestval = ROM32(bios->data[load_table_ptr + headerlen]) & 0 x3ff;
return 0 ;
}
static int parse_bit_display_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* Parses the flat panel table segment that the bit entry points to .
* Starting at bitentry - > offset :
*
* offset + 0 ( 16 bits ) : ? ? ? table pointer - seems to have 18 byte
* records beginning with a freq .
* offset + 2 ( 16 bits ) : mode table pointer
*/
struct nouveau_drm *drm = nouveau_drm(dev);
if (bitentry->length != 4 ) {
NV_ERROR(drm, "Do not understand BIT display table\n" );
return -EINVAL;
}
bios->fp.fptablepointer = ROM16(bios->data[bitentry->offset + 2 ]);
return 0 ;
}
static int parse_bit_init_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* Parses the init table segment that the bit entry points to .
*
* See parse_script_table_pointers for layout
*/
struct nouveau_drm *drm = nouveau_drm(dev);
if (bitentry->length < 14 ) {
NV_ERROR(drm, "Do not understand init table\n" );
return -EINVAL;
}
parse_script_table_pointers(bios, bitentry->offset);
return 0 ;
}
static int parse_bit_i_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* BIT ' i ' ( info ? ) table
*
* offset + 0 ( 32 bits ) : BIOS version dword ( as in B table )
* offset + 5 ( 8 bits ) : BIOS feature byte ( same as for BMP ? )
* offset + 13 ( 16 bits ) : pointer to table containing DAC load
* detection comparison values
*
* There ' s other things in the table , purpose unknown
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint16_t daccmpoffset;
uint8_t dacver, dacheaderlen;
if (bitentry->length < 6 ) {
NV_ERROR(drm, "BIT i table too short for needed information\n" );
return -EINVAL;
}
/*
* bit 4 seems to indicate a mobile bios ( doesn ' t suffer from BMP ' s
* Quadro identity crisis ) , other bits possibly as for BMP feature byte
*/
bios->feature_byte = bios->data[bitentry->offset + 5 ];
bios->is_mobile = bios->feature_byte & FEATURE_MOBILE;
if (bitentry->length < 15 ) {
NV_WARN(drm, "BIT i table not long enough for DAC load "
"detection comparison table\n" );
return -EINVAL;
}
daccmpoffset = ROM16(bios->data[bitentry->offset + 13 ]);
/* doesn't exist on g80 */
if (!daccmpoffset)
return 0 ;
/*
* The first value in the table , following the header , is the
* comparison value , the second entry is a comparison value for
* TV load detection .
*/
dacver = bios->data[daccmpoffset];
dacheaderlen = bios->data[daccmpoffset + 1 ];
if (dacver != 0 x00 && dacver != 0 x10) {
NV_WARN(drm, "DAC load detection comparison table version "
"%d.%d not known\n" , dacver >> 4 , dacver & 0 xf);
return -ENOSYS;
}
bios->dactestval = ROM32(bios->data[daccmpoffset + dacheaderlen]);
bios->tvdactestval = ROM32(bios->data[daccmpoffset + dacheaderlen + 4 ]);
return 0 ;
}
static int parse_bit_lvds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* Parses the LVDS table segment that the bit entry points to .
* Starting at bitentry - > offset :
*
* offset + 0 ( 16 bits ) : LVDS strap xlate table pointer
*/
struct nouveau_drm *drm = nouveau_drm(dev);
if (bitentry->length != 2 ) {
NV_ERROR(drm, "Do not understand BIT LVDS table\n" );
return -EINVAL;
}
/*
* No idea if it ' s still called the LVDS manufacturer table , but
* the concept ' s close enough .
*/
bios->fp.lvdsmanufacturerpointer = ROM16(bios->data[bitentry->offset]);
return 0 ;
}
static int
parse_bit_M_tbl_entry(struct drm_device *dev, struct nvbios *bios,
struct bit_entry *bitentry)
{
/*
* offset + 2 ( 8 bits ) : number of options in an
* INIT_RAM_RESTRICT_ZM_REG_GROUP opcode option set
* offset + 3 ( 16 bits ) : pointer to strap xlate table for RAM
* restrict option selection
*
* There ' s a bunch of bits in this table other than the RAM restrict
* stuff that we don ' t use - their use currently unknown
*/
/*
* Older bios versions don ' t have a sufficiently long table for
* what we want
*/
if (bitentry->length < 0 x5)
return 0 ;
if (bitentry->version < 2 ) {
bios->ram_restrict_group_count = bios->data[bitentry->offset + 2 ];
bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 3 ]);
} else {
bios->ram_restrict_group_count = bios->data[bitentry->offset + 0 ];
bios->ram_restrict_tbl_ptr = ROM16(bios->data[bitentry->offset + 1 ]);
}
return 0 ;
}
static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios, struct bit_entry *bitentry)
{
/*
* Parses the pointer to the TMDS table
*
* Starting at bitentry - > offset :
*
* offset + 0 ( 16 bits ) : TMDS table pointer
*
* The TMDS table is typically found just before the DCB table , with a
* characteristic signature of 0 x11 , 0 x13 ( 1 . 1 being version , 0 x13 being
* length ? )
*
* At offset + 7 is a pointer to a script , which I don ' t know how to
* run yet .
* At offset + 9 is a pointer to another script , likewise
* Offset + 11 has a pointer to a table where the first word is a pxclk
* frequency and the second word a pointer to a script , which should be
* run if the comparison pxclk frequency is less than the pxclk desired .
* This repeats for decreasing comparison frequencies
* Offset + 13 has a pointer to a similar table
* The selection of table ( and possibly + 7 / + 9 script ) is dictated by
* " or " from the DCB .
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint16_t tmdstableptr, script1, script2;
if (bitentry->length != 2 ) {
NV_ERROR(drm, "Do not understand BIT TMDS table\n" );
return -EINVAL;
}
tmdstableptr = ROM16(bios->data[bitentry->offset]);
if (!tmdstableptr) {
NV_INFO(drm, "Pointer to TMDS table not found\n" );
return -EINVAL;
}
NV_INFO(drm, "TMDS table version %d.%d\n" ,
bios->data[tmdstableptr] >> 4 , bios->data[tmdstableptr] & 0 xf);
/* nv50+ has v2.0, but we don't parse it atm */
if (bios->data[tmdstableptr] != 0 x11)
return -ENOSYS;
/*
* These two scripts are odd : they don ' t seem to get run even when
* they are not stubbed .
*/
script1 = ROM16(bios->data[tmdstableptr + 7 ]);
script2 = ROM16(bios->data[tmdstableptr + 9 ]);
if (bios->data[script1] != 'q' || bios->data[script2] != 'q' )
NV_WARN(drm, "TMDS table script pointers not stubbed\n" );
bios->tmds.output0_script_ptr = ROM16(bios->data[tmdstableptr + 11 ]);
bios->tmds.output1_script_ptr = ROM16(bios->data[tmdstableptr + 13 ]);
return 0 ;
}
struct bit_table {
const char id;
int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
};
#define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_## funcid## _tbl_entry })
int
bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
u8 entries, *entry;
if (bios->type != NVBIOS_BIT)
return -ENODEV;
entries = bios->data[bios->offset + 10 ];
entry = &bios->data[bios->offset + 12 ];
while (entries--) {
if (entry[0 ] == id) {
bit->id = entry[0 ];
bit->version = entry[1 ];
bit->length = ROM16(entry[2 ]);
bit->offset = ROM16(entry[4 ]);
bit->data = ROMPTR(dev, entry[4 ]);
return 0 ;
}
entry += bios->data[bios->offset + 9 ];
}
return -ENOENT;
}
static int
parse_bit_table(struct nvbios *bios, const uint16_t bitoffset,
struct bit_table *table)
{
struct drm_device *dev = bios->dev;
struct nouveau_drm *drm = nouveau_drm(dev);
struct bit_entry bitentry;
if (bit_table(dev, table->id, &bitentry) == 0 )
return table->parse_fn(dev, bios, &bitentry);
NV_INFO(drm, "BIT table '%c' not found\n" , table->id);
return -ENOSYS;
}
static int
parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
{
int ret;
/*
* The only restriction on parsing order currently is having ' i ' first
* for use of bios - > * _ version or bios - > feature_byte while parsing ;
* functions shouldn ' t be actually * doing * anything apart from pulling
* data from the image into the bios struct , thus no interdependencies
*/
ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('i' , i));
if (ret) /* info? */
return ret;
if (bios->major_version >= 0 x60) /* g80+ */
parse_bit_table(bios, bitoffset, &BIT_TABLE('A' , A));
parse_bit_table(bios, bitoffset, &BIT_TABLE('D' , display));
ret = parse_bit_table(bios, bitoffset, &BIT_TABLE('I' , init));
if (ret)
return ret;
parse_bit_table(bios, bitoffset, &BIT_TABLE('M' , M)); /* memory? */
parse_bit_table(bios, bitoffset, &BIT_TABLE('L' , lvds));
parse_bit_table(bios, bitoffset, &BIT_TABLE('T' , tmds));
return 0 ;
}
static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsigned int offset)
{
/*
* Parses the BMP structure for useful things , but does not act on them
*
* offset + 5 : BMP major version
* offset + 6 : BMP minor version
* offset + 9 : BMP feature byte
* offset + 10 : BCD encoded BIOS version
*
* offset + 18 : init script table pointer ( for bios versions < 5 . 10 h )
* offset + 20 : extra init script table pointer ( for bios
* versions < 5 . 10 h )
*
* offset + 24 : memory init table pointer ( used on early bios versions )
* offset + 26 : SDR memory sequencing setup data table
* offset + 28 : DDR memory sequencing setup data table
*
* offset + 54 : index of I2C CRTC pair to use for CRT output
* offset + 55 : index of I2C CRTC pair to use for TV output
* offset + 56 : index of I2C CRTC pair to use for flat panel output
* offset + 58 : write CRTC index for I2C pair 0
* offset + 59 : read CRTC index for I2C pair 0
* offset + 60 : write CRTC index for I2C pair 1
* offset + 61 : read CRTC index for I2C pair 1
*
* offset + 67 : maximum internal PLL frequency ( single stage PLL )
* offset + 71 : minimum internal PLL frequency ( single stage PLL )
*
* offset + 75 : script table pointers , as described in
* parse_script_table_pointers
*
* offset + 89 : TMDS single link output A table pointer
* offset + 91 : TMDS single link output B table pointer
* offset + 95 : LVDS single link output A table pointer
* offset + 105 : flat panel timings table pointer
* offset + 107 : flat panel strapping translation table pointer
* offset + 117 : LVDS manufacturer panel config table pointer
* offset + 119 : LVDS manufacturer strapping translation table pointer
*
* offset + 142 : PLL limits table pointer
*
* offset + 156 : minimum pixel clock for LVDS dual link
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint8_t *bmp = &bios->data[offset], bmp_version_major, bmp_version_minor;
uint16_t bmplength;
uint16_t legacy_scripts_offset, legacy_i2c_offset;
/* load needed defaults in case we can't parse this info */
bios->digital_min_front_porch = 0 x4b;
bios->fmaxvco = 256000 ;
bios->fminvco = 128000 ;
bios->fp.duallink_transition_clk = 90000 ;
bmp_version_major = bmp[5 ];
bmp_version_minor = bmp[6 ];
NV_INFO(drm, "BMP version %d.%d\n" ,
bmp_version_major, bmp_version_minor);
/*
* Make sure that 0 x36 is blank and can ' t be mistaken for a DCB
* pointer on early versions
*/
if (bmp_version_major < 5 )
*(uint16_t *)&bios->data[0 x36] = 0 ;
/*
* Seems that the minor version was 1 for all major versions prior
* to 5 . Version 6 could theoretically exist , but I suspect BIT
* happened instead .
*/
if ((bmp_version_major < 5 && bmp_version_minor != 1 ) || bmp_version_major > 5 ) {
NV_ERROR(drm, "You have an unsupported BMP version. "
"Please send in your bios\n" );
return -ENOSYS;
}
if (bmp_version_major == 0 )
/* nothing that's currently useful in this version */
return 0 ;
else if (bmp_version_major == 1 )
bmplength = 44 ; /* exact for 1.01 */
else if (bmp_version_major == 2 )
bmplength = 48 ; /* exact for 2.01 */
else if (bmp_version_major == 3 )
bmplength = 54 ;
/* guessed - mem init tables added in this version */
else if (bmp_version_major == 4 || bmp_version_minor < 0 x1)
/* don't know if 5.0 exists... */
bmplength = 62 ;
/* guessed - BMP I2C indices added in version 4*/
else if (bmp_version_minor < 0 x6)
bmplength = 67 ; /* exact for 5.01 */
else if (bmp_version_minor < 0 x10)
bmplength = 75 ; /* exact for 5.06 */
else if (bmp_version_minor == 0 x10)
bmplength = 89 ; /* exact for 5.10h */
else if (bmp_version_minor < 0 x14)
bmplength = 118 ; /* exact for 5.11h */
else if (bmp_version_minor < 0 x24)
/*
* Not sure of version where pll limits came in ;
* certainly exist by 0 x24 though .
*/
/* length not exact: this is long enough to get lvds members */
bmplength = 123 ;
else if (bmp_version_minor < 0 x27)
/*
* Length not exact : this is long enough to get pll limit
* member
*/
bmplength = 144 ;
else
/*
* Length not exact : this is long enough to get dual link
* transition clock .
*/
bmplength = 158 ;
/* checksum */
if (nv_cksum(bmp, 8 )) {
NV_ERROR(drm, "Bad BMP checksum\n" );
return -EINVAL;
}
/*
* Bit 4 seems to indicate either a mobile bios or a quadro card - -
* mobile behaviour consistent ( nv11 + ) , quadro only seen nv18gl - nv36gl
* ( not nv10gl ) , bit 5 that the flat panel tables are present , and
* bit 6 a tv bios .
*/
bios->feature_byte = bmp[9 ];
if (bmp_version_major < 5 || bmp_version_minor < 0 x10)
bios->old_style_init = true ;
legacy_scripts_offset = 18 ;
if (bmp_version_major < 2 )
legacy_scripts_offset -= 4 ;
bios->init_script_tbls_ptr = ROM16(bmp[legacy_scripts_offset]);
bios->extra_init_script_tbl_ptr = ROM16(bmp[legacy_scripts_offset + 2 ]);
if (bmp_version_major > 2 ) { /* appears in BMP 3 */
bios->legacy.mem_init_tbl_ptr = ROM16(bmp[24 ]);
bios->legacy.sdr_seq_tbl_ptr = ROM16(bmp[26 ]);
bios->legacy.ddr_seq_tbl_ptr = ROM16(bmp[28 ]);
}
legacy_i2c_offset = 0 x48; /* BMP version 2 & 3 */
if (bmplength > 61 )
legacy_i2c_offset = offset + 54 ;
bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1 ];
bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2 ];
if (bmplength > 74 ) {
bios->fmaxvco = ROM32(bmp[67 ]);
bios->fminvco = ROM32(bmp[71 ]);
}
if (bmplength > 88 )
parse_script_table_pointers(bios, offset + 75 );
if (bmplength > 94 ) {
bios->tmds.output0_script_ptr = ROM16(bmp[89 ]);
bios->tmds.output1_script_ptr = ROM16(bmp[91 ]);
/*
* Never observed in use with lvds scripts , but is reused for
* 18 / 24 bit panel interface default for EDID equipped panels
* ( if_is_24bit not set directly to avoid any oscillation ) .
*/
bios->legacy.lvds_single_a_script_ptr = ROM16(bmp[95 ]);
}
if (bmplength > 108 ) {
bios->fp.fptablepointer = ROM16(bmp[105 ]);
bios->fp.fpxlatetableptr = ROM16(bmp[107 ]);
bios->fp.xlatwidth = 1 ;
}
if (bmplength > 120 ) {
bios->fp.lvdsmanufacturerpointer = ROM16(bmp[117 ]);
bios->fp.fpxlatemanufacturertableptr = ROM16(bmp[119 ]);
}
#if 0
if (bmplength > 143 )
bios->pll_limit_tbl_ptr = ROM16(bmp[142 ]);
#endif
if (bmplength > 157 )
bios->fp.duallink_transition_clk = ROM16(bmp[156 ]) * 10 ;
return 0 ;
}
static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
{
int i, j;
for (i = 0 ; i <= (n - len); i++) {
for (j = 0 ; j < len; j++)
if (data[i + j] != str[j])
break ;
if (j == len)
return i;
}
return 0 ;
}
void *
olddcb_table(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
u8 *dcb = NULL;
if (drm->client.device.info.family > NV_DEVICE_INFO_V0_TNT)
dcb = ROMPTR(dev, drm->vbios.data[0 x36]);
if (!dcb) {
NV_WARN(drm, "No DCB data found in VBIOS\n" );
return NULL;
}
if (dcb[0 ] >= 0 x42) {
NV_WARN(drm, "DCB version 0x%02x unknown\n" , dcb[0 ]);
return NULL;
} else
if (dcb[0 ] >= 0 x30) {
if (ROM32(dcb[6 ]) == 0 x4edcbdcb)
return dcb;
} else
if (dcb[0 ] >= 0 x20) {
if (ROM32(dcb[4 ]) == 0 x4edcbdcb)
return dcb;
} else
if (dcb[0 ] >= 0 x15) {
if (!memcmp(&dcb[-7 ], "DEV_REC" , 7 ))
return dcb;
} else {
/*
* v1 . 4 ( some NV15 / 16 , NV11 + ) seems the same as v1 . 5 , but
* always has the same single ( crt ) entry , even when tv - out
* present , so the conclusion is this version cannot really
* be used .
*
* v1 . 2 tables ( some NV6 / 10 , and NV15 + ) normally have the
* same 5 entries , which are not specific to the card and so
* no use .
*
* v1 . 2 does have an I2C table that read_dcb_i2c_table can
* handle , but cards exist ( nv11 in # 14821 ) with a bad i2c
* table pointer , so use the indices parsed in
* parse_bmp_structure .
*
* v1 . 1 ( NV5 + , maybe some NV4 ) is entirely unhelpful
*/
NV_WARN(drm, "No useful DCB data in VBIOS\n" );
return NULL;
}
NV_WARN(drm, "DCB header validation failed\n" );
return NULL;
}
void *
olddcb_outp(struct drm_device *dev, u8 idx)
{
u8 *dcb = olddcb_table(dev);
if (dcb && dcb[0 ] >= 0 x30) {
if (idx < dcb[2 ])
return dcb + dcb[1 ] + (idx * dcb[3 ]);
} else
if (dcb && dcb[0 ] >= 0 x20) {
u8 *i2c = ROMPTR(dev, dcb[2 ]);
u8 *ent = dcb + 8 + (idx * 8 );
if (i2c && ent < i2c)
return ent;
} else
if (dcb && dcb[0 ] >= 0 x15) {
u8 *i2c = ROMPTR(dev, dcb[2 ]);
u8 *ent = dcb + 4 + (idx * 10 );
if (i2c && ent < i2c)
return ent;
}
return NULL;
}
int
olddcb_outp_foreach(struct drm_device *dev, void *data,
int (*exec)(struct drm_device *, void *, int idx, u8 *outp))
{
int ret, idx = -1 ;
u8 *outp = NULL;
while ((outp = olddcb_outp(dev, ++idx))) {
if (ROM32(outp[0 ]) == 0 x00000000)
break ; /* seen on an NV11 with DCB v1.5 */
if (ROM32(outp[0 ]) == 0 xffffffff)
break ; /* seen on an NV17 with DCB v2.0 */
if ((outp[0 ] & 0 x0f) == DCB_OUTPUT_UNUSED)
continue ;
if ((outp[0 ] & 0 x0f) == DCB_OUTPUT_EOL)
break ;
ret = exec(dev, data, idx, outp);
if (ret)
return ret;
}
return 0 ;
}
u8 *
olddcb_conntab(struct drm_device *dev)
{
u8 *dcb = olddcb_table(dev);
if (dcb && dcb[0 ] >= 0 x30 && dcb[1 ] >= 0 x16) {
u8 *conntab = ROMPTR(dev, dcb[0 x14]);
if (conntab && conntab[0 ] >= 0 x30 && conntab[0 ] <= 0 x40)
return conntab;
}
return NULL;
}
u8 *
olddcb_conn(struct drm_device *dev, u8 idx)
{
u8 *conntab = olddcb_conntab(dev);
if (conntab && idx < conntab[2 ])
return conntab + conntab[1 ] + (idx * conntab[3 ]);
return NULL;
}
static struct dcb_output *new_dcb_entry(struct dcb_table *dcb)
{
struct dcb_output *entry = &dcb->entry[dcb->entries];
memset(entry, 0 , sizeof (struct dcb_output));
entry->index = dcb->entries++;
return entry;
}
static void fabricate_dcb_output(struct dcb_table *dcb, int type, int i2c,
int heads, int or )
{
struct dcb_output *entry = new_dcb_entry(dcb);
entry->type = type;
entry->i2c_index = i2c;
entry->heads = heads;
if (type != DCB_OUTPUT_ANALOG)
entry->location = !DCB_LOC_ON_CHIP; /* ie OFF CHIP */
entry->or = or ;
}
static bool
parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
uint32_t conn, uint32_t conf, struct dcb_output *entry)
{
struct nouveau_drm *drm = nouveau_drm(dev);
int link = 0 ;
entry->type = conn & 0 xf;
entry->i2c_index = (conn >> 4 ) & 0 xf;
entry->heads = (conn >> 8 ) & 0 xf;
entry->connector = (conn >> 12 ) & 0 xf;
entry->bus = (conn >> 16 ) & 0 xf;
entry->location = (conn >> 20 ) & 0 x3;
entry->or = (conn >> 24 ) & 0 xf;
switch (entry->type) {
case DCB_OUTPUT_ANALOG:
/*
* Although the rest of a CRT conf dword is usually
* zeros , mac biosen have stuff there so we must mask
*/
entry->crtconf.maxfreq = (dcb->version < 0 x30) ?
(conf & 0 xffff) * 10 :
(conf & 0 xff) * 10000 ;
break ;
case DCB_OUTPUT_LVDS:
{
uint32_t mask;
if (conf & 0 x1)
entry->lvdsconf.use_straps_for_mode = true ;
if (dcb->version < 0 x22) {
mask = ~0 xd;
/*
* The laptop in bug 14567 lies and claims to not use
* straps when it does , so assume all DCB 2 . 0 laptops
* use straps , until a broken EDID using one is produced
*/
entry->lvdsconf.use_straps_for_mode = true ;
/*
* Both 0 x4 and 0 x8 show up in v2 . 0 tables ; assume they
* mean the same thing ( probably wrong , but might work )
*/
if (conf & 0 x4 || conf & 0 x8)
entry->lvdsconf.use_power_scripts = true ;
} else {
mask = ~0 x7;
if (conf & 0 x2)
entry->lvdsconf.use_acpi_for_edid = true ;
if (conf & 0 x4)
entry->lvdsconf.use_power_scripts = true ;
entry->lvdsconf.sor.link = (conf & 0 x00000030) >> 4 ;
link = entry->lvdsconf.sor.link;
}
if (conf & mask) {
/*
* Until we even try to use these on G8x , it ' s
* useless reporting unknown bits . They all are .
*/
if (dcb->version >= 0 x40)
break ;
NV_ERROR(drm, "Unknown LVDS configuration bits, "
"please report\n" );
}
break ;
}
case DCB_OUTPUT_TV:
{
if (dcb->version >= 0 x30)
entry->tvconf.has_component_output = conf & (0 x8 << 4 );
else
entry->tvconf.has_component_output = false ;
break ;
}
case DCB_OUTPUT_DP:
entry->dpconf.sor.link = (conf & 0 x00000030) >> 4 ;
entry->extdev = (conf & 0 x0000ff00) >> 8 ;
switch ((conf & 0 x00e00000) >> 21 ) {
case 0 :
entry->dpconf.link_bw = 162000 ;
break ;
case 1 :
entry->dpconf.link_bw = 270000 ;
break ;
case 2 :
entry->dpconf.link_bw = 540000 ;
break ;
case 3 :
default :
entry->dpconf.link_bw = 810000 ;
break ;
}
switch ((conf & 0 x0f000000) >> 24 ) {
case 0 xf:
case 0 x4:
entry->dpconf.link_nr = 4 ;
break ;
case 0 x3:
case 0 x2:
entry->dpconf.link_nr = 2 ;
break ;
default :
entry->dpconf.link_nr = 1 ;
break ;
}
link = entry->dpconf.sor.link;
break ;
case DCB_OUTPUT_TMDS:
if (dcb->version >= 0 x40) {
entry->tmdsconf.sor.link = (conf & 0 x00000030) >> 4 ;
entry->extdev = (conf & 0 x0000ff00) >> 8 ;
link = entry->tmdsconf.sor.link;
}
else if (dcb->version >= 0 x30)
entry->tmdsconf.slave_addr = (conf & 0 x00000700) >> 8 ;
else if (dcb->version >= 0 x22)
entry->tmdsconf.slave_addr = (conf & 0 x00000070) >> 4 ;
break ;
case DCB_OUTPUT_EOL:
/* weird g80 mobile type that "nv" treats as a terminator */
dcb->entries--;
return false ;
default :
break ;
}
if (dcb->version < 0 x40) {
/* Normal entries consist of a single bit, but dual link has
* the next most significant bit set too
*/
entry->duallink_possible =
((1 << (ffs(entry->or ) - 1 )) * 3 == entry->or );
} else {
entry->duallink_possible = (entry->sorconf.link == 3 );
}
/* unsure what DCB version introduces this, 3.0? */
if (conf & 0 x100000)
entry->i2c_upper_default = true ;
entry->hasht = (entry->extdev << 8 ) | (entry->location << 4 ) |
entry->type;
entry->hashm = (entry->heads << 8 ) | (link << 6 ) | entry->or ;
return true ;
}
static bool
parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
uint32_t conn, uint32_t conf, struct dcb_output *entry)
{
struct nouveau_drm *drm = nouveau_drm(dev);
switch (conn & 0 x0000000f) {
case 0 :
entry->type = DCB_OUTPUT_ANALOG;
break ;
case 1 :
entry->type = DCB_OUTPUT_TV;
break ;
case 2 :
case 4 :
if (conn & 0 x10)
entry->type = DCB_OUTPUT_LVDS;
else
entry->type = DCB_OUTPUT_TMDS;
break ;
case 3 :
entry->type = DCB_OUTPUT_LVDS;
break ;
default :
NV_ERROR(drm, "Unknown DCB type %d\n" , conn & 0 x0000000f);
return false ;
}
entry->i2c_index = (conn & 0 x0003c000) >> 14 ;
entry->heads = ((conn & 0 x001c0000) >> 18 ) + 1 ;
entry->or = entry->heads; /* same as heads, hopefully safe enough */
entry->location = (conn & 0 x01e00000) >> 21 ;
entry->bus = (conn & 0 x0e000000) >> 25 ;
entry->duallink_possible = false ;
switch (entry->type) {
case DCB_OUTPUT_ANALOG:
entry->crtconf.maxfreq = (conf & 0 xffff) * 10 ;
break ;
case DCB_OUTPUT_TV:
entry->tvconf.has_component_output = false ;
break ;
case DCB_OUTPUT_LVDS:
if ((conn & 0 x00003f00) >> 8 != 0 x10)
entry->lvdsconf.use_straps_for_mode = true ;
entry->lvdsconf.use_power_scripts = true ;
break ;
default :
break ;
}
return true ;
}
static
void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
{
/*
* DCB v2 . 0 lists each output combination separately .
* Here we merge compatible entries to have fewer outputs , with
* more options
*/
struct nouveau_drm *drm = nouveau_drm(dev);
int i, newentries = 0 ;
for (i = 0 ; i < dcb->entries; i++) {
struct dcb_output *ient = &dcb->entry[i];
int j;
for (j = i + 1 ; j < dcb->entries; j++) {
struct dcb_output *jent = &dcb->entry[j];
if (jent->type == 100 ) /* already merged entry */
continue ;
/* merge heads field when all other fields the same */
if (jent->i2c_index == ient->i2c_index &&
jent->type == ient->type &&
jent->location == ient->location &&
jent->or == ient->or ) {
NV_INFO(drm, "Merging DCB entries %d and %d\n" ,
i, j);
ient->heads |= jent->heads;
jent->type = 100 ; /* dummy value */
}
}
}
/* Compact entries merged into others out of dcb */
for (i = 0 ; i < dcb->entries; i++) {
if (dcb->entry[i].type == 100 )
continue ;
if (newentries != i) {
dcb->entry[newentries] = dcb->entry[i];
dcb->entry[newentries].index = newentries;
}
newentries++;
}
dcb->entries = newentries;
}
static bool
apply_dcb_encoder_quirks(struct drm_device *dev, int idx, u32 *conn, u32 *conf)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct dcb_table *dcb = &drm->vbios.dcb;
/* Dell Precision M6300
* DCB entry 2 : 02025312 00000010
* DCB entry 3 : 02026312 00000020
*
* Identical , except apparently a different connector on a
* different SOR link . Not a clue how we ' re supposed to know
* which one is in use if it even shares an i2c line . . .
*
* Ignore the connector on the second SOR link to prevent
* nasty problems until this is sorted ( assuming it ' s not a
* VBIOS bug ) .
*/
if (nv_match_device(dev, 0 x040d, 0 x1028, 0 x019b)) {
if (*conn == 0 x02026312 && *conf == 0 x00000020)
return false ;
}
/* GeForce3 Ti 200
*
* DCB reports an LVDS output that should be TMDS :
* DCB entry 1 : f2005014 ffffffff
*/
if (nv_match_device(dev, 0 x0201, 0 x1462, 0 x8851)) {
if (*conn == 0 xf2005014 && *conf == 0 xffffffff) {
fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 1 , 1 , DCB_OUTPUT_B);
return false ;
}
}
/* XFX GT-240X-YA
*
* So many things wrong here , replace the entire encoder table . .
*/
if (nv_match_device(dev, 0 x0ca3, 0 x1682, 0 x3003)) {
if (idx == 0 ) {
*conn = 0 x02001300; /* VGA, connector 1 */
*conf = 0 x00000028;
} else
if (idx == 1 ) {
*conn = 0 x01010312; /* DVI, connector 0 */
*conf = 0 x00020030;
} else
if (idx == 2 ) {
*conn = 0 x01010310; /* VGA, connector 0 */
*conf = 0 x00000028;
} else
if (idx == 3 ) {
*conn = 0 x02022362; /* HDMI, connector 2 */
*conf = 0 x00020010;
} else {
*conn = 0 x0000000e; /* EOL */
*conf = 0 x00000000;
}
}
/* Some other twisted XFX board (rhbz#694914)
*
* The DVI / VGA encoder combo that ' s supposed to represent the
* DVI - I connector actually point at two different ones , and
* the HDMI connector ends up paired with the VGA instead .
*
* Connector table is missing anything for VGA at all , pointing it
* an invalid conntab entry 2 so we figure it out ourself .
*/
if (nv_match_device(dev, 0 x0615, 0 x1682, 0 x2605)) {
if (idx == 0 ) {
*conn = 0 x02002300; /* VGA, connector 2 */
*conf = 0 x00000028;
} else
if (idx == 1 ) {
*conn = 0 x01010312; /* DVI, connector 0 */
*conf = 0 x00020030;
} else
if (idx == 2 ) {
*conn = 0 x04020310; /* VGA, connector 0 */
*conf = 0 x00000028;
} else
if (idx == 3 ) {
*conn = 0 x02021322; /* HDMI, connector 1 */
*conf = 0 x00020010;
} else {
*conn = 0 x0000000e; /* EOL */
*conf = 0 x00000000;
}
}
/* fdo#50830: connector indices for VGA and DVI-I are backwards */
if (nv_match_device(dev, 0 x0421, 0 x3842, 0 xc793)) {
if (idx == 0 && *conn == 0 x02000300)
*conn = 0 x02011300;
else
if (idx == 1 && *conn == 0 x04011310)
*conn = 0 x04000310;
else
if (idx == 2 && *conn == 0 x02011312)
*conn = 0 x02000312;
}
return true ;
}
static void
fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios)
{
struct dcb_table *dcb = &bios->dcb;
int all_heads = (nv_two_heads(dev) ? 3 : 1 );
#ifdef __powerpc__
/* Apple iMac G4 NV17 */
if (of_machine_is_compatible("PowerMac4,5" )) {
fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS, 0 , all_heads, DCB_OUTPUT_B);
fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG, 1 , all_heads, DCB_OUTPUT_C);
return ;
}
#endif
/* Make up some sane defaults */
fabricate_dcb_output(dcb, DCB_OUTPUT_ANALOG,
bios->legacy.i2c_indices.crt, 1 , DCB_OUTPUT_B);
if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0 )
fabricate_dcb_output(dcb, DCB_OUTPUT_TV,
bios->legacy.i2c_indices.tv,
all_heads, DCB_OUTPUT_A);
else if (bios->tmds.output0_script_ptr ||
bios->tmds.output1_script_ptr)
fabricate_dcb_output(dcb, DCB_OUTPUT_TMDS,
bios->legacy.i2c_indices.panel,
all_heads, DCB_OUTPUT_B);
}
static int
parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct dcb_table *dcb = &drm->vbios.dcb;
u32 conf = (dcb->version >= 0 x20) ? ROM32(outp[4 ]) : ROM32(outp[6 ]);
u32 conn = ROM32(outp[0 ]);
bool ret;
if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) {
struct dcb_output *entry = new_dcb_entry(dcb);
NV_INFO(drm, "DCB outp %02d: %08x %08x\n" , idx, conn, conf);
if (dcb->version >= 0 x20)
ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
else
ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
entry->id = idx;
if (!ret)
return 1 ; /* stop parsing */
/* Ignore the I2C index for on-chip TV-out, as there
* are cards with bogus values ( nv31m in bug 23212 ) ,
* and it ' s otherwise useless .
*/
if (entry->type == DCB_OUTPUT_TV &&
entry->location == DCB_LOC_ON_CHIP)
entry->i2c_index = 0 x0f;
}
return 0 ;
}
static void
dcb_fake_connectors(struct nvbios *bios)
{
struct dcb_table *dcbt = &bios->dcb;
u8 map[16 ] = { };
int i, idx = 0 ;
/* heuristic: if we ever get a non-zero connector field, assume
* that all the indices are valid and we don ' t need fake them .
*
* and , as usual , a blacklist of boards with bad bios data . .
*/
if (!nv_match_device(bios->dev, 0 x0392, 0 x107d, 0 x20a2)) {
for (i = 0 ; i < dcbt->entries; i++) {
if (dcbt->entry[i].connector)
return ;
}
}
/* no useful connector info available, we need to make it up
* ourselves . the rule here is : anything on the same i2c bus
* is considered to be on the same connector . any output
* without an associated i2c bus is assigned its own unique
* connector index .
*/
for (i = 0 ; i < dcbt->entries; i++) {
u8 i2c = dcbt->entry[i].i2c_index;
if (i2c == 0 x0f) {
dcbt->entry[i].connector = idx++;
} else {
if (!map[i2c])
map[i2c] = ++idx;
dcbt->entry[i].connector = map[i2c] - 1 ;
}
}
/* if we created more than one connector, destroy the connector
* table - just in case it has random , rather than stub , entries .
*/
if (i > 1 ) {
u8 *conntab = olddcb_conntab(bios->dev);
if (conntab)
conntab[0 ] = 0 x00;
}
}
static int
parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct dcb_table *dcb = &bios->dcb;
u8 *dcbt, *conn;
int idx;
dcbt = olddcb_table(dev);
if (!dcbt) {
/* handle pre-DCB boards */
if (bios->type == NVBIOS_BMP) {
fabricate_dcb_encoder_table(dev, bios);
return 0 ;
}
return -EINVAL;
}
NV_INFO(drm, "DCB version %d.%d\n" , dcbt[0 ] >> 4 , dcbt[0 ] & 0 xf);
dcb->version = dcbt[0 ];
olddcb_outp_foreach(dev, NULL, parse_dcb_entry);
/*
* apart for v2 . 1 + not being known for requiring merging , this
* guarantees dcbent - > index is the index of the entry in the rom image
*/
if (dcb->version < 0 x21)
merge_like_dcb_entries(dev, dcb);
/* dump connector table entries to log, if any exist */
idx = -1 ;
while ((conn = olddcb_conn(dev, ++idx))) {
if (conn[0 ] != 0 xff) {
if (olddcb_conntab(dev)[3 ] < 4 )
NV_INFO(drm, "DCB conn %02d: %04x\n" ,
idx, ROM16(conn[0 ]));
else
NV_INFO(drm, "DCB conn %02d: %08x\n" ,
idx, ROM32(conn[0 ]));
}
}
dcb_fake_connectors(bios);
return 0 ;
}
static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
{
/*
* The header following the " HWSQ " signature has the number of entries ,
* and the entry size
*
* An entry consists of a dword to write to the sequencer control reg
* ( 0 x00001304 ) , followed by the ucode bytes , written sequentially ,
* starting at reg 0 x00001400
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvif_object *device = &drm->client.device.object;
uint8_t bytes_to_write;
uint16_t hwsq_entry_offset;
int i;
if (bios->data[hwsq_offset] <= entry) {
NV_ERROR(drm, "Too few entries in HW sequencer table for "
"requested entry\n" );
return -ENOENT;
}
bytes_to_write = bios->data[hwsq_offset + 1 ];
if (bytes_to_write != 36 ) {
NV_ERROR(drm, "Unknown HW sequencer entry size\n" );
return -EINVAL;
}
NV_INFO(drm, "Loading NV17 power sequencing microcode\n" );
hwsq_entry_offset = hwsq_offset + 2 + entry * bytes_to_write;
/* set sequencer control */
nvif_wr32(device, 0 x00001304, ROM32(bios->data[hwsq_entry_offset]));
bytes_to_write -= 4 ;
/* write ucode */
for (i = 0 ; i < bytes_to_write; i += 4 )
nvif_wr32(device, 0 x00001400 + i, ROM32(bios->data[hwsq_entry_offset + i + 4 ]));
/* twiddle NV_PBUS_DEBUG_4 */
nvif_wr32(device, NV_PBUS_DEBUG_4, nvif_rd32(device, NV_PBUS_DEBUG_4) | 0 x18);
return 0 ;
}
static int load_nv17_hw_sequencer_ucode(struct drm_device *dev,
struct nvbios *bios)
{
/*
* BMP based cards , from NV17 , need a microcode loading to correctly
* control the GPIO etc for LVDS panels
*
* BIT based cards seem to do this directly in the init scripts
*
* The microcode entries are found by the " HWSQ " signature .
*/
static const uint8_t hwsq_signature[] = { 'H' , 'W' , 'S' , 'Q' };
const int sz = sizeof (hwsq_signature);
int hwsq_offset;
hwsq_offset = findstr(bios->data, bios->length, hwsq_signature, sz);
if (!hwsq_offset)
return 0 ;
/* always use entry 0? */
return load_nv17_hwsq_ucode_entry(dev, bios, hwsq_offset + sz, 0 );
}
uint8_t *nouveau_bios_embedded_edid(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
static const uint8_t edid_sig[] = {
0 x00, 0 xff, 0 xff, 0 xff, 0 xff, 0 xff, 0 xff, 0 x00 };
uint16_t offset = 0 ;
uint16_t newoffset;
int searchlen = NV_PROM_SIZE;
if (bios->fp.edid)
return bios->fp.edid;
while (searchlen) {
newoffset = findstr(&bios->data[offset], searchlen,
edid_sig, 8 );
if (!newoffset)
return NULL;
offset += newoffset;
if (!nv_cksum(&bios->data[offset], EDID1_LEN))
break ;
searchlen -= offset;
offset++;
}
NV_INFO(drm, "Found EDID in BIOS\n" );
return bios->fp.edid = &bios->data[offset];
}
static bool NVInitVBIOS(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvkm_bios *bios = nvxx_bios(drm);
struct nvbios *legacy = &drm->vbios;
memset(legacy, 0 , sizeof (struct nvbios));
spin_lock_init(&legacy->lock);
legacy->dev = dev;
legacy->data = bios->data;
legacy->length = bios->size;
legacy->major_version = bios->version.major;
legacy->chip_version = bios->version.chip;
if (bios->bit_offset) {
legacy->type = NVBIOS_BIT;
legacy->offset = bios->bit_offset;
return !parse_bit_structure(legacy, legacy->offset + 6 );
} else
if (bios->bmp_offset) {
legacy->type = NVBIOS_BMP;
legacy->offset = bios->bmp_offset;
return !parse_bmp_structure(dev, legacy, legacy->offset);
}
return false ;
}
int
nouveau_run_vbios_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
/* Reset the BIOS head to 0. */
bios->state.crtchead = 0 ;
if (bios->major_version < 5 ) /* BMP only */
load_nv17_hw_sequencer_ucode(dev, bios);
if (bios->execute) {
bios->fp.last_script_invoc = 0 ;
bios->fp.lvds_init_run = false ;
}
return 0 ;
}
static bool
nouveau_bios_posted(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
unsigned htotal;
if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
return true ;
htotal = NVReadVgaCrtc(dev, 0 , 0 x06);
htotal |= (NVReadVgaCrtc(dev, 0 , 0 x07) & 0 x01) << 8 ;
htotal |= (NVReadVgaCrtc(dev, 0 , 0 x07) & 0 x20) << 4 ;
htotal |= (NVReadVgaCrtc(dev, 0 , 0 x25) & 0 x01) << 10 ;
htotal |= (NVReadVgaCrtc(dev, 0 , 0 x41) & 0 x01) << 11 ;
return (htotal != 0 );
}
int
nouveau_bios_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
int ret;
/* only relevant for PCI devices */
if (!dev_is_pci(dev->dev) ||
nvkm_gsp_rm(nvxx_device(drm)->gsp))
return 0 ;
if (!NVInitVBIOS(dev))
return -ENODEV;
if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
ret = parse_dcb_table(dev, bios);
if (ret)
return ret;
}
if (!bios->major_version) /* we don't run version 0 bios */
return 0 ;
/* init script execution disabled */
bios->execute = false ;
/* ... unless card isn't POSTed already */
if (!nouveau_bios_posted(dev)) {
NV_INFO(drm, "Adaptor not initialised, "
"running VBIOS init tables.\n" );
bios->execute = true ;
}
ret = nouveau_run_vbios_init(dev);
if (ret)
return ret;
/* feature_byte on BMP is poor, but init always sets CR4B */
if (bios->major_version < 5 )
bios->is_mobile = NVReadVgaCrtc(dev, 0 , NV_CIO_CRE_4B) & 0 x40;
/* all BIT systems need p_f_m_t for digital_min_front_porch */
if (bios->is_mobile || bios->major_version >= 5 )
ret = parse_fp_mode_table(dev, bios);
/* allow subsequent scripts to execute */
bios->execute = true ;
return 0 ;
}
void
nouveau_bios_takedown(struct drm_device *dev)
{
}
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