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To: Randall Hopper <rhh@ct.picker.com>
cc: multimedia@FreeBSD.org
Subject: Re: New BT848 driver 0.2 
In-reply-to: Your message of "Sun, 23 Feb 1997 21:21:07 EST."
             <19970223212107.37259@ct.picker.com> 
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Date: Sun, 23 Feb 1997 18:36:20 -0800
From: Amancio Hasty <hasty@rah.star-gate.com>
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Sorry about that .. I counted wrong.

>                                    STATUS 0 dd000206 2b901c
>                                    STATUS 0 dd000a04 2b9f24

The suspect in your case is                            ^^^^^^^

That value should be current PC address of the risc program which
the Bt848 is executing.

That value seems too low . To verify that indeed is the correct
value. In get_bktr_mem , print the value returned by vm_page_alloc_contig.
So before the "return addr", add this:

printf("get_bktr_mem %s \n", addr);

	Tnks,
	Amancio



>From The Desk Of Randall Hopper :
> Amancio Hasty:
>  |A cursory analysis of the interrupt status info that you send us seems to
>  |indicate that you are getting excessive PCI errors.
> ...
>  |Here is a sample output from my P100:
>  |Feb 22 05:51:20 cioloco /kernel:  STATUS 0 d000206 30701c 
>  |Feb 22 05:51:20 cioloco /kernel:  STATUS 0 d000a04 3077a4 
>  |Feb 22 05:51:20 cioloco /kernel:  STATUS 0 d000a04 3077a4 
>  |Feb 22 05:51:20 cioloco /kernel:  STATUS 0 c000206 30601c 
>  |Feb 22 05:51:20 cioloco /kernel:  STATUS 0 c000206 30601c 
> ...
>  |                                           ^^^^^^^  BKTR_INT_STAT
>  |BKTR_INT_STAT is the second value in the output as you can see 
>  |bit 15 is never set which means that the Bt848 is not having
>  |problems accessing the host memory.
> 
> A piece of my output:
>                                    STATUS 0 dc000206 100001c
>                                    STATUS 0 dc000a04 1000f24
>                                    STATUS 0 dd000206 2b901c
>                                    STATUS 0 dd000a04 2b9f24
> 
> 
> Bit 15?  Are some bytes swapped in the port mapping?  It looks to my like
> your low-order word (bits 15->0) is the same as mine.  The differences look
> like your bits 28,30, and 31 which are in the RISCS field.
> 
> I guess I might be missing something.
> 
> Randall
>