7 messages, 4 authors, 2000-07-25 · open the first message on its own page
From: FASSINO Jean-Philippe <hidden>
Date: 2000-07-25 10:22:50
Hello, Just a question about RTAS on PowerMac G4, does linux kernel can call RTAS function ? And if not, why ? I'm trying to do it and that fail... JP ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: <hidden>
Date: 2000-07-25 11:38:38
FASSINO Jean-Philippe wrote:
Hello, Just a question about RTAS on PowerMac G4, does linux kernel can call RTAS function ?
Hi Jean-Philippe, You can call RTAS on a PowerMac but I wouldn't do it. From what I understand Apple doesn't recommend that you make use of RTAS on their hardware. On RS/6000 hardware you most certainly can use RTAS.
And if not, why ? I'm trying to do it and that fail... JP
-- Tom Gall - PowerPC Linux Team "Where's the ka-boom? There was Linux Technology Center supposed to be an earth (w) tom_gall@vnet.ibm.com shattering ka-boom!" (w) 507-253-4558 -- Marvin Martian (h) tgall@uswest.net http://oss.software.ibm.com/developerworks/opensource/linux ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Donald Cowart <hidden>
Date: 2000-07-25 11:58:18
Newbie question, what is RTAS? Donald Cowart (dcowart@acld.lib.fl.us) Network Manager Alachua County Library District Gainesville, FL On Tue, 25 Jul 2000 tom_gall@vnet.ibm.com wrote:
FASSINO Jean-Philippe wrote:quoted
Hello, Just a question about RTAS on PowerMac G4, does linux kernel can call RTAS function ?Hi Jean-Philippe, You can call RTAS on a PowerMac but I wouldn't do it. From what I understand Apple doesn't recommend that you make use of RTAS on their hardware. On RS/6000 hardware you most certainly can use RTAS.quoted
And if not, why ? I'm trying to do it and that fail... JP-- Tom Gall - PowerPC Linux Team "Where's the ka-boom? There was Linux Technology Center supposed to be an earth (w) tom_gall@vnet.ibm.com shattering ka-boom!" (w) 507-253-4558 -- Marvin Martian (h) tgall@uswest.net http://oss.software.ibm.com/developerworks/opensource/linux
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: <hidden>
Date: 2000-07-25 12:00:23
Donald Cowart wrote:
Newbie question, what is RTAS?
RTAS == Run-Time Abstraction Services In a nutshell an API the OS may utilize to perform various tasks which without RTAS would be hardware dependant. For example: reading the level on a battery on a portable, and so on.
Donald Cowart (dcowart@acld.lib.fl.us)
-- Tom Gall - PowerPC Linux Team "Where's the ka-boom? There was Linux Technology Center supposed to be an earth (w) tom_gall@vnet.ibm.com shattering ka-boom!" (w) 507-253-4558 -- Marvin Martian (h) tgall@uswest.net http://oss.software.ibm.com/developerworks/opensource/linux ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: FASSINO Jean-Philippe <hidden>
Date: 2000-07-25 12:00:56
Donald Cowart wrote:
Newbie question, what is RTAS?
It is the Run-Time Abstraction Services which provide functions to insulate operating systems from having to know about and manipulating a number devices. It is a interface between hardware and software. For example, RTAS provide functions for reading and writing PCI configuration, shutdown, reboot, get time, managing power, ... of the CHRP computer. JP -- -------------------------------------------------------------------------- Jean-Philippe FASSINO France Telecom R&D : DTL/ASR Tel : 04 76 76 45 52 mailto:jeanphilippe.fassino@francetelecom.fr -------------------------------------------------------------------------- ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: FASSINO Jean-Philippe <hidden>
Date: 2000-07-25 12:08:39
tom_gall@vnet.ibm.com wrote:
You can call RTAS on a PowerMac but I wouldn't do it. From what I understand Apple doesn't recommend that you make use of RTAS on their hardware.
Do you know why ? Because for embedded systems it is very usefull ! JP ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
From: Benjamin Herrenschmidt <hidden>
Date: 2000-07-25 13:20:28
Just a question about RTAS on PowerMac G4, does linux kernel can call RTAS function ? And if not, why ? I'm trying to do it and that fail...
RTAS in not correctly implemented in those machines. Apple is apparently abandonning it, the implementation in ROM for all core99 machines is bogus. What do you want to use RTAS for ? Ben. ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/