Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 5:00 PM, ron minnich [EMAIL PROTECTED] wrote: On Wed, Oct 15, 2008 at 1:27 PM, Myles Watson [EMAIL PROTECTED] wrote: Here's the next part of the log now that I've enabled setup_realmode_idt (I'm running it right before real_mode_switch_call_vga. Copying VGA ROM

Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 5:44 PM, Carl-Daniel Hailfinger [EMAIL PROTECTED] wrote: On 16.10.2008 01:13, Peter Stuge wrote: ron minnich wrote: Myles, try setting -mregparm=0 and see if life is better. Good find. __attribute__((stdcall)) will do this for you. It doesn't work for

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 5:39 AM, Myles Watson [EMAIL PROTECTED] wrote: tter. I get a Execution halted due to Stopping SimNow due to unhandled case(s) EAX=0001 EBX=000163A8 ECX=80012010 EDX=0FDC ESI=B10D EDI=0001 ESP=0F34 EBP=0020 CS=0010 DS=0018 ES=0018 FS=0018

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 8:48 AM, Myles Watson [EMAIL PROTECTED] wrote: Check PCI: 1022:2067 found 0xb102: return 0x120 the wrong # here? Yes. It should be device # 4 as far as I can tell. In the debugger when I do a config read to bus 1 dev 4 function 0 I get the right data back.

Re: [coreboot] SimNOW VGA int 1a

2008/10/16 ron minnich [EMAIL PROTECTED] On Thu, Oct 16, 2008 at 5:39 AM, Myles Watson [EMAIL PROTECTED] wrote: tter. I get a Execution halted due to Stopping SimNow due to unhandled case(s) EAX=0001 EBX=000163A8 ECX=80012010 EDX=0FDC ESI=B10D EDI=0001 ESP=0F34

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 9:49 AM, ron minnich [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 8:48 AM, Myles Watson [EMAIL PROTECTED] wrote: Check PCI: 1022:2067 found 0xb102: return 0x120 the wrong # here? Yes. It should be device # 4 as far as I can tell. In the debugger

Re: [coreboot] SimNOW VGA int 1a

Myles Watson wrote: On Thu, Oct 16, 2008 at 9:49 AM, ron minnich [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 8:48 AM, Myles Watson [EMAIL PROTECTED] mailto:[EMAIL PROTECTED] wrote: Check PCI: 1022:2067 found 0xb102: return 0x120

Re: [coreboot] SimNOW VGA int 1a

-Original Message- From: Marc Jones [mailto:[EMAIL PROTECTED] Sent: Thursday, October 16, 2008 10:32 AM To: Myles Watson Cc: ron minnich; Tom Sylla; Coreboot Subject: Re: [coreboot] SimNOW VGA int 1a Myles Watson wrote: On Thu, Oct 16, 2008 at 9:49 AM, ron minnich [EMAIL

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 9:35 AM, Myles Watson [EMAIL PROTECTED] wrote: Which BAR? What is the contents of 0xcf8? Not sure why, but writing 0x to a BAR is to get the size. It shoudl disable the device before it does that but sometimes they are sloppy and don't. cf8 = 0x80012010 bus

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 1:25 PM, ron minnich [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 12:19 PM, Marc Jones [EMAIL PROTECTED] wrote: AH! I see. We shouldn't be running out of the ROM. That will be slow. We should copy the VGA BIOS to real memory and run it there. Why are you

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 12:30 PM, Myles Watson [EMAIL PROTECTED] wrote: Wait a second. The reason this is broken is that the code setting the PCI decode register is in the ROM. Can we fix this by calling pci_conf1_write_config32 instead? It looks like it's in RAM. sure, but ANY call to

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 12:35 PM, Myles Watson [EMAIL PROTECTED] wrote: All right. I guess I go back to being a lurker for a while until it gets worked out :) Myles, you debugged it, you get to tell me how to fix it :-) ron -- coreboot mailing list: coreboot@coreboot.org

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 12:34 PM, ron minnich [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 12:32 PM, Marc Jones [EMAIL PROTECTED] wrote: That gets us back to relocating or mutilple copies in the stages. I am ok with multiple copies in the ROM but it should be on version in the source. The

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 12:41 PM, Myles Watson [EMAIL PROTECTED] wrote: I'm showing my ignorance here. Conceptually couldn't you have a small area set up like CAR for the shared portions? As long as it was all loaded before probing wouldn't it always be accessed before the ROM? It's

Re: [coreboot] SimNOW VGA int 1a

On 16.10.2008 21:38, ron minnich wrote: On Thu, Oct 16, 2008 at 12:34 PM, ron minnich [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 12:32 PM, Marc Jones [EMAIL PROTECTED] wrote: That gets us back to relocating or mutilple copies in the stages. I am ok with multiple copies in the

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 1:27 PM, Myles Watson [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 1:25 PM, ron minnich [EMAIL PROTECTED] wrote: On Thu, Oct 16, 2008 at 12:19 PM, Marc Jones [EMAIL PROTECTED] wrote: AH! I see. We shouldn't be running out of the ROM. That will be slow. We

Re: [coreboot] SimNOW VGA int 1a

On 16/10/08 12:46 -0700, ron minnich wrote: On Thu, Oct 16, 2008 at 12:41 PM, Myles Watson [EMAIL PROTECTED] wrote: I'm showing my ignorance here. Conceptually couldn't you have a small area set up like CAR for the shared portions? As long as it was all loaded before probing wouldn't it

Re: [coreboot] SimNOW VGA int 1a

On Thu, Oct 16, 2008 at 1:06 PM, Jordan Crouse [EMAIL PROTECTED] wrote: I don't think this is really that big a deal. I don't think shared functions hold any value for us other then the fact that it feels right. With the right Makefile fu, we can make this painless for the builder and the

[coreboot] SimNOW VGA int 1a

SimNOW goes off into the weeds when int 1a is called. Here's the trace of execution: C000:0003 E9E200 jmp loc_00e8 C000:00E8 60 pusha C000:00E9 E84331 call loc_322f C000:322F B800C0 mov ax,c000 C000:3232 8ED8 mov ds,ax C000:3234 BE

Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 3:56 PM, Myles Watson [EMAIL PROTECTED] wrote: C000:3241 B802B1 mov ax,b102 C000:3244 CD1A int 1a : FF Yep, b102 is not a common signature. I'm looking for the place where the interrupt vector was supposed to have been set. I am

Re: [coreboot] SimNOW VGA int 1a

-Original Message- From: Tom Sylla [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 2:04 PM To: Myles Watson Cc: Coreboot; ron minnich Subject: Re: [coreboot] SimNOW VGA int 1a On Wed, Oct 15, 2008 at 3:56 PM, Myles Watson [EMAIL PROTECTED] wrote: C000:3241 B802B1

Re: [coreboot] SimNOW VGA int 1a

Myles Watson wrote: -Original Message- From: Tom Sylla [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 2:04 PM To: Myles Watson Cc: Coreboot; ron minnich Subject: Re: [coreboot] SimNOW VGA int 1a On Wed, Oct 15, 2008 at 3:56 PM, Myles Watson [EMAIL PROTECTED] wrote: C000

Re: [coreboot] SimNOW VGA int 1a

Here's the next part of the log now that I've enabled setup_realmode_idt (I'm running it right before real_mode_switch_call_vga. Copying VGA ROM image from 0xfe04 to 0xc, 0x8000 bytes BREAK HERE run_bios = 0x944a biosint: INT# 0x18 biosint: eax 0x2e ebx 0x1 ecx 0xfe4 edx 0xcf11c

Re: [coreboot] SimNOW VGA int 1a

Is int1a pci bios calls supported in the emulators? It seems to work in v2. I've never looked at them before today. Thanks, Myles -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot

Re: [coreboot] SimNOW VGA int 1a

Myles Watson wrote: Here's the next part of the log now that I've enabled setup_realmode_idt (I'm running it right before real_mode_switch_call_vga. Copying VGA ROM image from 0xfe04 to 0xc, 0x8000 bytes BREAK HERE run_bios = 0x944a biosint: INT# 0x18 biosint: eax 0x2e ebx 0x1

Re: [coreboot] SimNOW VGA int 1a

-Original Message- From: Marc Jones [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 2:45 PM To: Myles Watson Cc: Tom Sylla; ron minnich; Coreboot Subject: Re: [coreboot] SimNOW VGA int 1a Myles Watson wrote: Here's the next part of the log now that I've enabled

Re: [coreboot] SimNOW VGA int 1a

Myles Watson wrote: -Original Message- From: Marc Jones [mailto:[EMAIL PROTECTED] Sent: Wednesday, October 15, 2008 2:45 PM To: Myles Watson Cc: Tom Sylla; ron minnich; Coreboot Subject: Re: [coreboot] SimNOW VGA int 1a Myles Watson wrote: Here's the next part of the log now

Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 1:26 PM, Marc Jones [EMAIL PROTECTED] wrote: Is int1a pci bios calls supported in the emulators? yes they are. I'm not sure what is going wrong here. ron -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot

Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 1:27 PM, Myles Watson [EMAIL PROTECTED] wrote: Here's the next part of the log now that I've enabled setup_realmode_idt (I'm running it right before real_mode_switch_call_vga. Copying VGA ROM image from 0xfe04 to 0xc, 0x8000 bytes BREAK HERE run_bios =

Re: [coreboot] SimNOW VGA int 1a

ron minnich wrote: Myles, try setting -mregparm=0 and see if life is better. Good find. I vote we get rid of this type of Cleverness. It's just not performance critical in a bios. We're not an OS and we should keep it simple. I don't think we'll live or die on 3 on-stack variables. If it

Re: [coreboot] SimNOW VGA int 1a

let's look around: gdb build/util/x86emu/vm86.o Dump of assembler code for function biosint: 0x04f3 biosint+0: push %esi 0x04f4 biosint+1: mov%eax,%esi 0x04f6 biosint+3: push %ebx 0x04f7 biosint+4: sub$0x4,%esp 0x04fa biosint+7:

Re: [coreboot] SimNOW VGA int 1a

On Wed, Oct 15, 2008 at 4:27 PM, Myles Watson [EMAIL PROTECTED] wrote: I'll be interested to see how much faster v3 is when it's not set to SPEW. Right now it seems a lot slower than v2dsr on SimNOW. v3 is far faster than romcc v2 of course. Is it faster than CAR v2? that's not clear yet. My

Re: [coreboot] SimNOW VGA int 1a

Myles Watson wrote: I'll be interested to see how much faster v3 is when it's not set to SPEW. Quite a lot on geodelx. //Peter -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot