* ide dma in /proc/dma
@ 2001-04-22 11:53 andersg
2001-04-22 19:52 ` Steven Walter
0 siblings, 1 reply; 2+ messages in thread
From: andersg @ 2001-04-22 11:53 UTC (permalink / raw)
To: linux-kernel
Hi!
why doesnt the dma for ide disks show up in /proc/dma?
heineken:~# hdparm -d /dev/discs/disc0/disc
/dev/discs/disc0/disc:
using_dma = 1 (on)
heineken:~# cat /proc/dma
4: cascade
--
//anders/g
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: ide dma in /proc/dma
2001-04-22 11:53 ide dma in /proc/dma andersg
@ 2001-04-22 19:52 ` Steven Walter
0 siblings, 0 replies; 2+ messages in thread
From: Steven Walter @ 2001-04-22 19:52 UTC (permalink / raw)
To: andersg; +Cc: linux-kernel
On Sun, Apr 22, 2001 at 01:53:59PM +0200, andersg@0x63.nu wrote:
> Hi!
>
> why doesnt the dma for ide disks show up in /proc/dma?
>
> heineken:~# hdparm -d /dev/discs/disc0/disc
> /dev/discs/disc0/disc:
> using_dma = 1 (on)
>
> heineken:~# cat /proc/dma
> 4: cascade
I suspect this is because only ISA DMA's are listed in /proc/dma, and
your IDE controller is likely PCI.
--
-Steven
In a time of universal deceit, telling the truth is a revolutionary act.
-- George Orwell
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2001-04-22 19:52 ` Steven Walter
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