unsupport int error when vga init

zhu shi song zhushisongzhu at yahoo.com
Tue Aug 31 07:35:01 CEST 2004 

Dear lists,
  I have two questions:
 (1) I use getpir(8.30 freebios v1) to get
irq_tables.c of epia-500.  I have compared mine with
one under mainboard/via/epia.  They are always
different.  What cause it?  My irq_tables.c is as
following:
/* This file was generated by getpir.c, do not modify!
   (but if you do, please run checkpir on it to
verify)
   Contains the IRQ Routing Table dumped directly from
your memory , wich BIOS s
ets up

   Documentation at :
http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
*/

#include <arch/pirq_routing.h>

const struct irq_routing_table intel_irq_routing_table
= {
        PIRQ_SIGNATURE, /* u32 signature */
        PIRQ_VERSION,   /* u16 version   */
        32+16*5,        /* there can be total 5
devices on the bus */
        0,           /* Where the interrupt router
lies (bus) */
        0,           /* Where the interrupt router
lies (dev) */
        0x1c00,         /* IRQs devoted exclusively to
PCI usage */
        0,         /* Vendor */
        0,         /* Device */
        0,         /* Crap (miniport) */
        { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8
rfu[11] */
        0x88,         /*  u8 checksum , this hase to
set to some value that woul
d give 0 after the sum of all bytes for this structure
(including checksum) */
        {
                {0,0x98, {{0x1, 0xdeb8}, {0x2,
0xdeb8}, {0x3, 0xdeb8}, {0x4, 0xd
eb8}}, 0x2, 0},
                {0,0x50, {{0x1, 0xdeb8}, {0x2,
0xdeb8}, {0x3, 0xdeb8}, {0x4, 0xd
eb8}}, 0x3, 0},
                {0,0x58, {{0x4, 0xdeb8}, {0x1,
0xdeb8}, {0x2, 0xdeb8}, {0x3, 0xd
eb8}}, 0x4, 0},
                {0,0x8, {{0x1, 0xdeb8}, {0x2, 0xdeb8},
{0x3, 0xdeb8}, {0x4, 0xde
b8}}, 0, 0},
                {0x50,0, {{0, 0}, {0, 0}, {0, 0}, {0,
0}}, 0, 0},
        }
};

 (2) I've got QDIA6T MB based on vt8601 and vt82c686. 
I have made some progress on this MB(8.30 freebios
v1).  The romimage can find VGABIOS, but unsupport int
error occurred.  The output log is as following:

LinuxBIOS-1.0.0 Tue Aug 31 19:52:18 CST 2004
starting...
Enabled first bank of RAM: 0x10000000 bytes
Copying LinuxBIOS to ram.
Jumping to LinuxBIOS.
LinuxBIOS-1.0.0 Tue Aug 31 19:52:18 CST 2004
booting...
Finding PCI configuration type.
PCI: Using configuration type 1
Scanning PCI bus...PCI: pci_scan_bus for bus 0
PCI: 00:00.0 [1106/0601]
PCI: 00:01.0 [1106/8601]
PCI: 00:07.0 [1106/0686]
PCI: 00:07.2 [1106/3038]
PCI: 00:07.3 [1106/3038]
PCI: 00:07.4 [1106/3057]
PCI: 00:07.5 [1106/3058]
PCI: pci_scan_bus for bus 1
PCI: 01:00.0 [1023/8500]
PCI: pci_scan_bus returning with max=01
PCI: pci_scan_bus returning with max=01
done
Allocating PCI resources...
PCI: 00:00.0 register 10(00000008), read-only ignoring
it
PCI: 00:00.0 register 10(00000008), read-only ignoring
it
PCI: 00:00.0 register 10(00000008), read-only ignoring
it
PCI: 00:00.0 register 10(00000008), read-only ignoring
it
ASSIGN RESOURCES, bus 0
PCI: 00:01.0 1c <- [0x00001000 - 0x00000fff] bus 1 io
PCI: 00:01.0 24 <- [0xfe900000 - 0xfe8fffff] bus 1
prefmem
PCI: 00:01.0 20 <- [0xfd800000 - 0xfe8fffff] bus 1 mem
ASSIGN RESOURCES, bus 1
PCI: 01:00.0 10 <- [0xfd800000 - 0xfdffffff] mem
PCI: 01:00.0 14 <- [0xfe800000 - 0xfe81ffff] mem
PCI: 01:00.0 18 <- [0xfe000000 - 0xfe7fffff] mem
ASSIGNED RESOURCES, bus 1
PCI: 00:07.2 20 <- [0x00001400 - 0x0000141f] io
PCI: 00:07.3 20 <- [0x00001420 - 0x0000143f] io
PCI: 00:07.5 10 <- [0x00001000 - 0x000010ff] io
PCI: 00:07.5 14 <- [0x00001440 - 0x00001443] io
PCI: 00:07.5 18 <- [0x00001450 - 0x00001453] io
ASSIGNED RESOURCES, bus 0
Allocating VGA resource
done.
Enabling PCI resourcess...PCI: 00:00.0 cmd <- 06
PCI: 00:01.0 cmd <- 07
PCI: 00:07.0 cmd <- 87
PCI: 00:07.2 cmd <- 01
PCI: 00:07.3 cmd <- 01
PCI: 00:07.4 cmd <- 00
PCI: 00:07.5 cmd <- 01
PCI: 01:00.0 cmd <- 03
done.
Initializing PCI devices...
PCI devices initialized
Disable Cache
Bank0 256MB (MA type 0xe)
bank 2 MA 0x0: 0 bytes
bank 2 MA 0x8: 0 bytes
bank 2 MA 0xe: 0 bytes
bank 4 MA 0x0: 0 bytes
bank 4 MA 0x8: 0 bytes
bank 4 MA 0xe: 0 bytes
Enable Cache
Total 248MB + frame buffer 8MB
Enabling shadow DRAM at 0xC0000-0xFFFFF: done
totalram: 248M
Initializing CPU #0
Enabling cache...
Setting fixed MTRRs(0-88) type: UC
Setting fixed MTRRs(0-16) type: WB
Setting fixed MTRRs(24-88) type: WB
DONE fixed MTRRs
Setting variable MTRR 0, base:    0MB, range:  128MB,
type WB
Setting variable MTRR 1, base:  128MB, range:   64MB,
type WB
Setting variable MTRR 2, base:  192MB, range:   32MB,
type WB
Setting variable MTRR 3, base:  224MB, range:   16MB,
type WB
Setting variable MTRR 4, base:  240MB, range:    8MB,
type WB
DONE variable MTRRs
Clear out the extra MTRR's
call intel_enable_fixed_mtrr()
call intel_enable_var_mtrr()
Leave setup_mtrrs
done.

Max cpuid index    : 2
Vendor ID          : GenuineIntel
Processor Type     : 0x00
Processor Family   : 0x06
Processor Model    : 0x08
Processor Mask     : 0x00
Processor Stepping : 0x0a
Feature flags      : 0x0383fbff

Cache/TLB descriptor values: 1 reads required
Desc 0x01 : Instr TLB: 4KB pages, 4-way set assoc, 32
entries
Desc 0x02 : Instr TLB: 4MB pages, fully assoc, 2
entries
Desc 0x03 : Data TLB: 4KB pages, 4-way set assoc, 64
entries
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x00 : null
Desc 0x41 : L2 Unified cache: 128K bytes, 4-way set
assoc, 32 byte line size
Desc 0x08 : Inst cache: 16K bytes, 4-way set assoc, 32
byte line size
Desc 0x04 : Data TLB: 4MB pages, 4-way set assoc, 8
entries
Desc 0x0c : Data cache: 16K bytes, 2-way or 4-way set
assoc, 32 byte line size



MTRR check
Fixed MTRRs   : Enabled
Variable MTRRs: Enabled

Disabling local apic...done.
CPU #0 Initialized
Mainboard fixup
IDE enable in reg. 48 is 0x3
set IDE reg. 48 to 0x1
IRQs in reg. 4a are 0x4
setting reg. 4a to 0x44
IDE enable in reg.1-40 is 0x8
set IDE reg.1-40 to 0x3
IDE enable in reg.1-40 read back is 0x3
enables in reg 0x9 0x8f
enables in reg 0x9 read back as 0x8a
command in reg 0x4 0x80
command in reg 0x4 reads back as 0x85
keyboard_on
Final mainboard fixup
Southbridge fixup
keyboard_on
IDE enable in reg. 48 is 0x5
set IDE reg. 48 to 0x5
IRQs in reg. 4a are 0x4
setting reg. 4a to 0x44
IDE enable in reg.1-40 is 0x3
set IDE reg.1-40 to 0x3
IDE enable in reg.1-40 read back is 0x3
enables in reg 0x9 0x8a
enables in reg 0x9 read back as 0x8a
command in reg 0x4 0x85
command in reg 0x4 reads back as 0x85
setting southbridge
Assigning IRQ 10 to 0:7.5
  Readback = 10
Assigning IRQ 11 to 1:0.0
  Readback = 11
INSTALL REAL-MODE IDT
DO THE VGA BIOS
found VGA: vid=1023, did=8500
0x55 0xaa 0x60 0xeb 0x4d 0x37 0x34 0x30 0x30 0x30 0x37
0xdc 0x73 0x2a 0x2a 0x52 bus/devfn = 0x100
biosint: # 0x1a, eax 0xb109 ebx 0x100 ecx 0x100 edx
0xb1bf
biosint: ebp 0x10fd8 esp 0xfc9 edi 0x2 esi 0x13f60
biosint: ip 0x56e8 cs 0xc000 flags 0x16
0xb109: bus 1 devfn 0x0 reg 0x2 val 0x8500
biosint: # 0xd8, eax 0xc000 ebx 0x100 ecx 0x8500 edx
0x3c2
biosint: ebp 0x10fd8 esp 0xfc7 edi 0x2 esi 0x13f60
biosint: ip 0x2329 cs 0xc000 flags 0x246
biosint: Unsupport int #0xd8
biosint: # 0xcd, eax 0xc000 ebx 0x100 ecx 0x8500 edx
0x3c2
biosint: ebp 0x10fd8 esp 0xfc7 edi 0x2 esi 0x13f60
biosint: ip 0x2329 cs 0xc000 flags 0x246
biosint: Unsupport int #0xcd


		
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