summaryrefslogtreecommitdiffstats
path: root/drivers/gpu/drm/nouveau/nouveau_bios.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bios.c235
1 files changed, 1 insertions, 234 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 09fdef23588..865eddfa30a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -624,206 +624,6 @@ int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, b
return 0;
}
-/* BIT 'U'/'d' table encoder subtables have hashes matching them to
- * a particular set of encoders.
- *
- * This function returns true if a particular DCB entry matches.
- */
-bool
-bios_encoder_match(struct dcb_output *dcb, u32 hash)
-{
- if ((hash & 0x000000f0) != (dcb->location << 4))
- return false;
- if ((hash & 0x0000000f) != dcb->type)
- return false;
- if (!(hash & (dcb->or << 16)))
- return false;
-
- switch (dcb->type) {
- case DCB_OUTPUT_TMDS:
- case DCB_OUTPUT_LVDS:
- case DCB_OUTPUT_DP:
- if (hash & 0x00c00000) {
- if (!(hash & (dcb->sorconf.link << 22)))
- return false;
- }
- default:
- return true;
- }
-}
-
-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 +1012,6 @@ 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 +1088,6 @@ 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 +2098,7 @@ 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 +2111,6 @@ 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;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-12 11:42:37 +0000