* Power MGMT on mips
@ 2001-11-12 8:13 Han-Seong Kim
2001-11-12 8:13 ` Han-Seong Kim
2001-11-12 12:30 ` Ralf Baechle
0 siblings, 2 replies; 6+ messages in thread
From: Han-Seong Kim @ 2001-11-12 8:13 UTC (permalink / raw)
To: linux-mips, linux-mips
Hi,
I want to ask about Power-Mnagement on mips.
1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
2.If no, how can manage CPU and Bidge chips for power mgnt ?
Han-Seong
^ permalink raw reply [flat|nested] 6+ messages in thread
* Power MGMT on mips
2001-11-12 8:13 Power MGMT on mips Han-Seong Kim
@ 2001-11-12 8:13 ` Han-Seong Kim
2001-11-12 12:30 ` Ralf Baechle
1 sibling, 0 replies; 6+ messages in thread
From: Han-Seong Kim @ 2001-11-12 8:13 UTC (permalink / raw)
To: linux-mips, linux-mips
Hi,
I want to ask about Power-Mnagement on mips.
1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
2.If no, how can manage CPU and Bidge chips for power mgnt ?
Han-Seong
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Power MGMT on mips
2001-11-12 8:13 Power MGMT on mips Han-Seong Kim
2001-11-12 8:13 ` Han-Seong Kim
@ 2001-11-12 12:30 ` Ralf Baechle
2001-11-12 21:50 ` James Simmons
2001-11-19 12:13 ` Han-Seong Kim
1 sibling, 2 replies; 6+ messages in thread
From: Ralf Baechle @ 2001-11-12 12:30 UTC (permalink / raw)
To: Han-Seong Kim; +Cc: linux-mips, linux-mips
On Mon, Nov 12, 2001 at 05:13:40PM +0900, Han-Seong Kim wrote:
> I want to ask about Power-Mnagement on mips.
> 1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
Both are PC stuff, so no.
> 2.If no, how can manage CPU and Bidge chips for power mgnt ?
Right now Linux/MIPS will only use the CPU's power managment features, that
is the wait instruction or similar.
Ralf
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: Power MGMT on mips
2001-11-12 12:30 ` Ralf Baechle
@ 2001-11-12 21:50 ` James Simmons
2001-11-19 12:13 ` Han-Seong Kim
1 sibling, 0 replies; 6+ messages in thread
From: James Simmons @ 2001-11-12 21:50 UTC (permalink / raw)
To: Ralf Baechle; +Cc: Han-Seong Kim, linux-mips, linux-mips
> > 2.If no, how can manage CPU and Bidge chips for power mgnt ?
>
> Right now Linux/MIPS will only use the CPU's power managment features, that
> is the wait instruction or similar.
What would be nice that I have been thinking about is making a cpu scale
api very similiar to what ARM has.
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: Power MGMT on mips
2001-11-12 12:30 ` Ralf Baechle
2001-11-12 21:50 ` James Simmons
@ 2001-11-19 12:13 ` Han-Seong Kim
2001-11-19 12:13 ` Han-Seong Kim
1 sibling, 1 reply; 6+ messages in thread
From: Han-Seong Kim @ 2001-11-19 12:13 UTC (permalink / raw)
To: 'Ralf Baechle'; +Cc: linux-mips, linux-mips
Hi Ralf,
I reviewed the data sheet of Mips CPU - QED RM5231.
There is a wait instruction.
But when the SysAD bus goes to idle, the wait instruction is valid.
How can I SysAD bus make idle state?
Han-Seong
-----Original Message-----
From: Ralf Baechle [mailto:ralf@oss.sgi.com]
Sent: Monday, November 12, 2001 9:31 PM
To: Han-Seong Kim
Cc: linux-mips@fnet.fr; linux-mips@oss.sgi.com
Subject: Re: Power MGMT on mips
On Mon, Nov 12, 2001 at 05:13:40PM +0900, Han-Seong Kim wrote:
> I want to ask about Power-Mnagement on mips.
> 1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
Both are PC stuff, so no.
> 2.If no, how can manage CPU and Bidge chips for power mgnt ?
Right now Linux/MIPS will only use the CPU's power managment features, that
is the wait instruction or similar.
Ralf
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: Power MGMT on mips
2001-11-19 12:13 ` Han-Seong Kim
@ 2001-11-19 12:13 ` Han-Seong Kim
0 siblings, 0 replies; 6+ messages in thread
From: Han-Seong Kim @ 2001-11-19 12:13 UTC (permalink / raw)
To: 'Ralf Baechle'; +Cc: linux-mips, linux-mips
Hi Ralf,
I reviewed the data sheet of Mips CPU - QED RM5231.
There is a wait instruction.
But when the SysAD bus goes to idle, the wait instruction is valid.
How can I SysAD bus make idle state?
Han-Seong
-----Original Message-----
From: Ralf Baechle [mailto:ralf@oss.sgi.com]
Sent: Monday, November 12, 2001 9:31 PM
To: Han-Seong Kim
Cc: linux-mips@fnet.fr; linux-mips@oss.sgi.com
Subject: Re: Power MGMT on mips
On Mon, Nov 12, 2001 at 05:13:40PM +0900, Han-Seong Kim wrote:
> I want to ask about Power-Mnagement on mips.
> 1. Is it possible to use power mgnt (ex. apm,acpi) features of linux kernel?
Both are PC stuff, so no.
> 2.If no, how can manage CPU and Bidge chips for power mgnt ?
Right now Linux/MIPS will only use the CPU's power managment features, that
is the wait instruction or similar.
Ralf
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2001-11-19 13:31 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2001-11-12 8:13 Power MGMT on mips Han-Seong Kim
2001-11-12 8:13 ` Han-Seong Kim
2001-11-12 12:30 ` Ralf Baechle
2001-11-12 21:50 ` James Simmons
2001-11-19 12:13 ` Han-Seong Kim
2001-11-19 12:13 ` Han-Seong Kim
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