* DMA pool for embedded linux kernel
@ 2003-10-23 14:21 Bihari Ashwin-Q3316C
2003-10-23 14:43 ` 750FX specific patch or kernel version? DONG-IN KANG
0 siblings, 1 reply; 4+ messages in thread
From: Bihari Ashwin-Q3316C @ 2003-10-23 14:21 UTC (permalink / raw)
To: linuxppc-embedded
Greetings,
We are in the middle of developing a chassis which will be using Embedded
Linux and during the course of configuration we've come across some
questions that would need to be answered to ensure that we make the right
system for current development and future deployment.
One of these things is the DMA pool that needs to be allocated for PCI
devices DMA between system memory and device memory (if present). I've been
trying to search but haven't found any document or anything that describes
what a reasonable size of memory should be. As we are configuring a custom
kernel, we'd like to know what the minimum is so that we don't run out of
DMA pages, and what a reasonable maximum would be so that we don't waste
memory.
The chassis we are building will be a telecom chassis running various
switch/routing applications. Any and all help and direction would be greatly
appreciated.
Regards,
----
Ashwin Bihari
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
* 750FX specific patch or kernel version?
2003-10-23 14:21 DMA pool for embedded linux kernel Bihari Ashwin-Q3316C
@ 2003-10-23 14:43 ` DONG-IN KANG
2003-10-23 15:16 ` Guy M. Streeter
0 siblings, 1 reply; 4+ messages in thread
From: DONG-IN KANG @ 2003-10-23 14:43 UTC (permalink / raw)
To: linuxppc-embedded
Hello,
I'm trying to port Linux on IBM750FX based custom board.
I've used kernel 2.4.17 for other board based on early IBM750.
Can I still use the 2.4.17? Or should I use an updated version of Linux.
Or is there any patches specific for 750FX?
I've seen a patch for 750FX's L2 cache.
Are there any more? (750FX has 8 BATs. So I think it should be taken
care....)
Thanks,
Dong-In
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: 750FX specific patch or kernel version?
2003-10-23 14:43 ` 750FX specific patch or kernel version? DONG-IN KANG
@ 2003-10-23 15:16 ` Guy M. Streeter
2003-10-23 15:46 ` Dan Kegel
0 siblings, 1 reply; 4+ messages in thread
From: Guy M. Streeter @ 2003-10-23 15:16 UTC (permalink / raw)
To: DONG-IN KANG; +Cc: linuxppc-embedded
I think support for the 750FX was added to the kernel in version 2.4.21.
--Guy
On Thu, 2003-10-23 at 09:43, DONG-IN KANG wrote:
> Hello,
>
> I'm trying to port Linux on IBM750FX based custom board.
> I've used kernel 2.4.17 for other board based on early IBM750.
> Can I still use the 2.4.17? Or should I use an updated version of Linux.
> Or is there any patches specific for 750FX?
> I've seen a patch for 750FX's L2 cache.
> Are there any more? (750FX has 8 BATs. So I think it should be taken
> care....)
>
> Thanks,
>
> Dong-In
>
>
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2003-10-23 15:46 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-10-23 14:21 DMA pool for embedded linux kernel Bihari Ashwin-Q3316C
2003-10-23 14:43 ` 750FX specific patch or kernel version? DONG-IN KANG
2003-10-23 15:16 ` Guy M. Streeter
2003-10-23 15:46 ` Dan Kegel
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).