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updated AGP shutoff to be temporary during coldstarts: finally NV28 cooperates IF card is primary, fake_agp driver is installed and FW is enabled!! Apparantly something messes up PCI/AGP comms that does not get restored within the normal coldstart operating procedure. PCI mode is NOT operational when coldstarting(!)

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9352 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Rudolf Cornelissen 2004-10-14 15:06:06 +00:00
parent 38cd9a7521
commit b88fe980ef
1 changed files with 10 additions and 0 deletions
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10
src/add-ons/accelerants/nvidia/engine/nv_info.c
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@ -225,6 +225,7 @@ static status_t coldstart_card(uint8* rom, uint16 init1, uint16 init2, uint16 in
{
status_t result = B_OK;
int16 size = init_size;
uint32 agp_mode;
LOG(8,("INFO: now executing coldstart...\n"));
@ -266,6 +267,7 @@ static status_t coldstart_card(uint8* rom, uint16 init1, uint16 init2, uint16 in
/* note:
* this _must_ be done _after_ the screens where shut-off as no
* (memory) transactions may be in progress during this command. */
agp_mode = CFGR(AGPCMD);
CFGW(AGPCMD, 0x00000000);
/* execute BIOS coldstart script(s) */
@ -276,6 +278,9 @@ static status_t coldstart_card(uint8* rom, uint16 init1, uint16 init2, uint16 in
if (init2 && (result == B_OK))
if (exec_type1_script(rom, init2, &size, ram_tab) != B_OK) result = B_ERROR;
/* reset bus mode to wat it was before */
CFGW(AGPCMD, agp_mode);
/* now enable ROM shadow or the card will remain shut-off! */
CFGW(ROMSHADOW, (CFGR(ROMSHADOW) |= 0x00000001));
@ -299,6 +304,7 @@ static status_t coldstart_card_516_up(uint8* rom, PinsTables tabs, uint16 ram_ta
{
status_t result = B_OK;
uint16 adress;
uint32 agp_mode;
LOG(8,("INFO: now executing coldstart...\n"));
@ -348,6 +354,7 @@ static status_t coldstart_card_516_up(uint8* rom, PinsTables tabs, uint16 ram_ta
/* note:
* this _must_ be done _after_ the screens where shut-off as no
* (memory) transactions may be in progress during this command. */
agp_mode = CFGR(AGPCMD);
CFGW(AGPCMD, 0x00000000);
/* execute all BIOS coldstart script(s) */
@ -372,6 +379,9 @@ static status_t coldstart_card_516_up(uint8* rom, PinsTables tabs, uint16 ram_ta
adress = *((uint16*)(&(rom[index])));
}
/* reset bus mode to wat it was before */
CFGW(AGPCMD, agp_mode);
/* now enable ROM shadow or the card will remain shut-off! */
CFGW(ROMSHADOW, (CFGR(ROMSHADOW) |= 0x00000001));