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drm/nouveau: remove (now obsolete) BIT U table parsing from DRM code 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2012-11-12 09:55:16 +10:00
parent 186ecad21c
commit b6e4ad200a
3 changed files with 34 additions and 215 deletions
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34
drivers/gpu/drm/nouveau/core/subdev/devinit/nv50.c
View File

@ -22,6 +22,10 @@
* Authors: Ben Skeggs
*/
#include <subdev/bios.h>
#include <subdev/bios/dcb.h>
#include <subdev/bios/disp.h>
#include <subdev/bios/init.h>
#include <subdev/devinit.h>
#include <subdev/vga.h>
@ -55,7 +59,12 @@ nv50_devinit_dtor(struct nouveau_object *object)
static int
nv50_devinit_init(struct nouveau_object *object)
{
struct nouveau_bios *bios = nouveau_bios(object);
struct nv50_devinit_priv *priv = (void *)object;
struct nvbios_outp info;
struct dcb_output outp;
u8 ver = 0xff, hdr, cnt, len;
int ret, i = 0;
if (!priv->base.post) {
if (!nv_rdvgac(priv, 0, 0x00) &&
@ -65,7 +74,30 @@ nv50_devinit_init(struct nouveau_object *object)
}
}
return nouveau_devinit_init(&priv->base);
ret = nouveau_devinit_init(&priv->base);
if (ret)
return ret;
/* if we ran the init tables, execute first script pointer for each
* display table output entry that has a matching dcb entry.
*/
while (priv->base.post && ver) {
u16 data = nvbios_outp_parse(bios, i++, &ver, &hdr, &cnt, &len, &info);
if (data && dcb_outp_match(bios, info.type, info.mask, &ver, &len, &outp)) {
struct nvbios_init init = {
.subdev = nv_subdev(priv),
.bios = bios,
.offset = info.script[0],
.outp = &outp,
.crtc = -1,
.execute = 1,
};
nvbios_exec(&init);
}
};
return 0;
}
static int

207
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -652,178 +652,6 @@ bios_encoder_match(struct dcb_output *dcb, u32 hash)
}
}
int
nouveau_bios_run_display_table(struct drm_device *dev, u16 type, int pclk,
struct dcb_output *dcbent, int crtc)
{
/*
* The display script table is located by the BIT 'U' table.
*
* It contains an array of pointers to various tables describing
* a particular output type. The first 32-bits of the output
* tables contains similar information to a DCB entry, and is
* used to decide whether that particular table is suitable for
* the output you want to access.
*
* The "record header length" field here seems to indicate the
* offset of the first configuration entry in the output tables.
* This is 10 on most cards I've seen, but 12 has been witnessed
* on DP cards, and there's another script pointer within the
* header.
*
* offset + 0 ( 8 bits): version
* offset + 1 ( 8 bits): header length
* offset + 2 ( 8 bits): record length
* offset + 3 ( 8 bits): number of records
* offset + 4 ( 8 bits): record header length
* offset + 5 (16 bits): pointer to first output script table
*/
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
uint8_t *table = &bios->data[bios->display.script_table_ptr];
uint8_t *otable = NULL;
uint16_t script;
int i;
if (!bios->display.script_table_ptr) {
NV_ERROR(drm, "No pointer to output script table\n");
return 1;
}
/*
* Nothing useful has been in any of the pre-2.0 tables I've seen,
* so until they are, we really don't need to care.
*/
if (table[0] < 0x20)
return 1;
if (table[0] != 0x20 && table[0] != 0x21) {
NV_ERROR(drm, "Output script table version 0x%02x unknown\n",
table[0]);
return 1;
}
/*
* The output script tables describing a particular output type
* look as follows:
*
* offset + 0 (32 bits): output this table matches (hash of DCB)
* offset + 4 ( 8 bits): unknown
* offset + 5 ( 8 bits): number of configurations
* offset + 6 (16 bits): pointer to some script
* offset + 8 (16 bits): pointer to some script
*
* headerlen == 10
* offset + 10 : configuration 0
*
* headerlen == 12
* offset + 10 : pointer to some script
* offset + 12 : configuration 0
*
* Each config entry is as follows:
*
* offset + 0 (16 bits): unknown, assumed to be a match value
* offset + 2 (16 bits): pointer to script table (clock set?)
* offset + 4 (16 bits): pointer to script table (reset?)
*
* There doesn't appear to be a count value to say how many
* entries exist in each script table, instead, a 0 value in
* the first 16-bit word seems to indicate both the end of the
* list and the default entry. The second 16-bit word in the
* script tables is a pointer to the script to execute.
*/
NV_DEBUG(drm, "Searching for output entry for %d %d %d\n",
dcbent->type, dcbent->location, dcbent->or);
for (i = 0; i < table[3]; i++) {
otable = ROMPTR(dev, table[table[1] + (i * table[2])]);
if (otable && bios_encoder_match(dcbent, ROM32(otable[0])))
break;
}
if (!otable) {
NV_DEBUG(drm, "failed to match any output table\n");
return 1;
}
if (pclk < -2 || pclk > 0) {
/* Try to find matching script table entry */
for (i = 0; i < otable[5]; i++) {
if (ROM16(otable[table[4] + i*6]) == type)
break;
}
if (i == otable[5]) {
NV_ERROR(drm, "Table 0x%04x not found for %d/%d, "
"using first\n",
type, dcbent->type, dcbent->or);
i = 0;
}
}
if (pclk == 0) {
script = ROM16(otable[6]);
if (!script) {
NV_DEBUG(drm, "output script 0 not found\n");
return 1;
}
NV_DEBUG(drm, "0x%04X: parsing output script 0\n", script);
nouveau_bios_run_init_table(dev, script, dcbent, crtc);
} else
if (pclk == -1) {
script = ROM16(otable[8]);
if (!script) {
NV_DEBUG(drm, "output script 1 not found\n");
return 1;
}
NV_DEBUG(drm, "0x%04X: parsing output script 1\n", script);
nouveau_bios_run_init_table(dev, script, dcbent, crtc);
} else
if (pclk == -2) {
if (table[4] >= 12)
script = ROM16(otable[10]);
else
script = 0;
if (!script) {
NV_DEBUG(drm, "output script 2 not found\n");
return 1;
}
NV_DEBUG(drm, "0x%04X: parsing output script 2\n", script);
nouveau_bios_run_init_table(dev, script, dcbent, crtc);
} else
if (pclk > 0) {
script = ROM16(otable[table[4] + i*6 + 2]);
if (script)
script = clkcmptable(bios, script, pclk);
if (!script) {
NV_DEBUG(drm, "clock script 0 not found\n");
return 1;
}
NV_DEBUG(drm, "0x%04X: parsing clock script 0\n", script);
nouveau_bios_run_init_table(dev, script, dcbent, crtc);
} else
if (pclk < 0) {
script = ROM16(otable[table[4] + i*6 + 4]);
if (script)
script = clkcmptable(bios, script, -pclk);
if (!script) {
NV_DEBUG(drm, "clock script 1 not found\n");
return 1;
}
NV_DEBUG(drm, "0x%04X: parsing clock script 1\n", script);
nouveau_bios_run_init_table(dev, script, dcbent, crtc);
}
return 0;
}
int run_tmds_table(struct drm_device *dev, struct dcb_output *dcbent, int head, int pxclk)
{
/*
@ -1212,31 +1040,6 @@ static int parse_bit_tmds_tbl_entry(struct drm_device *dev, struct nvbios *bios,
return 0;
}
static int
parse_bit_U_tbl_entry(struct drm_device *dev, struct nvbios *bios,
struct bit_entry *bitentry)
{
/*
* Parses the pointer to the G80 output script tables
*
* Starting at bitentry->offset:
*
* offset + 0 (16 bits): output script table pointer
*/
struct nouveau_drm *drm = nouveau_drm(dev);
uint16_t outputscripttableptr;
if (bitentry->length != 3) {
NV_ERROR(drm, "Do not understand BIT U table\n");
return -EINVAL;
}
outputscripttableptr = ROM16(bios->data[bitentry->offset]);
bios->display.script_table_ptr = outputscripttableptr;
return 0;
}
struct bit_table {
const char id;
int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *);
@ -1313,7 +1116,6 @@ parse_bit_structure(struct nvbios *bios, const uint16_t bitoffset)
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));
parse_bit_table(bios, bitoffset, &BIT_TABLE('U', U));
return 0;
}
@ -2324,7 +2126,7 @@ nouveau_run_vbios_init(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
struct nvbios *bios = &drm->vbios;
int i, ret = 0;
int ret = 0;
/* Reset the BIOS head to 0. */
bios->state.crtchead = 0;
@ -2337,13 +2139,6 @@ nouveau_run_vbios_init(struct drm_device *dev)
bios->fp.lvds_init_run = false;
}
if (nv_device(drm->device)->card_type >= NV_50) {
for (i = 0; bios->execute && i < bios->dcb.entries; i++) {
nouveau_bios_run_display_table(dev, 0, 0,
&bios->dcb.entry[i], -1);
}
}
return ret;
}

8
drivers/gpu/drm/nouveau/nouveau_bios.h
View File

@ -127,12 +127,6 @@ struct nvbios {
int crtchead;
} state;
struct {
struct dcb_output *output;
int crtc;
uint16_t script_table_ptr;
} display;
struct {
uint16_t fptablepointer; /* also used by tmds */
uint16_t fpxlatetableptr;
@ -185,8 +179,6 @@ void nouveau_bios_takedown(struct drm_device *dev);
int nouveau_run_vbios_init(struct drm_device *);
struct dcb_connector_table_entry *
nouveau_bios_connector_entry(struct drm_device *, int index);
int nouveau_bios_run_display_table(struct drm_device *, u16 id, int clk,
struct dcb_output *, int crtc);
bool nouveau_bios_fp_mode(struct drm_device *, struct drm_display_mode *);
uint8_t *nouveau_bios_embedded_edid(struct drm_device *);
int nouveau_bios_parse_lvds_table(struct drm_device *, int pxclk,