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[linux-pm] ACPI problems mohd . adil Wed Jan 21 08:01:10 2009

<P>Hi </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; This is 
my first post to the list. Hope&nbsp;I will find a solution. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I am 
trying to develop a new functionality using a Sun alonso Quad Core blade 
(x86_64) architecture. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; The 
linux distribution which I am using contains a very old acpi driver (02/09/2005 
probably acpi version 1 compliant)</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Further, 
the BIOS I am using is an AMI BIOS.&nbsp; I am fairly certain that it is acpi 
version 3 compliant. </P>
<P> </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Now,
 I am facing two problems here. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1)&nbsp;
 I am trying to&nbsp;evaluate some namespace control methods which are setup in 
sytem&nbsp;DSDT. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 Functions are : </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 <A href="file://\\_SB.PERB">\\_SB.PERB</A>&nbsp;(should contain memory 
location address) and</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 &nbsp;<A href="file://\\_SB.PERL">\\_SB.PERL</A>&nbsp;&nbsp;&nbsp;(should 
contain length)</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 This some information passed to us from BIOS which is required for my 
development. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 I am using&nbsp;acpi_evaluate_object to evaluate these functions.&nbsp;I dont 
see any error in executing the evaluate </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 function call. But they evaluate to zero. </P>
<P>&nbsp;</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2)&nbsp;&nbsp;
 The second task I have is to put the system into S3 (suspend to ram) state. 
</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 While doing that I am experiencing a problem. Every time I write </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;echo
 mem &gt; /sys/power/state </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 System hangs at METHOD_NAME__PTS method. There is a related bug in </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 new acpi driver related to this function. But since I am using a very old 
driver this should not have </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;happened.
 </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
 Just for added information : I dont really care about resume from the S3 
state. I dont have video card. </P>
<P>&nbsp;</P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</P>
<P>Any help in this regard is highly appreciated. </P>
<P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </P>
<P>Thanks,<BR><BR>Mohd. Adil<BR>Tata Consultancy Services<BR>Mailto: [EMAIL 
PROTECTED]<BR>Website: <A 
href="http://www.tcs.com">http://www.tcs.com</A><BR>____________________________________________<BR>Experience
 certainty. IT Services<BR>Business 
Solutions<BR>Outsourcing<BR>____________________________________________</P><BR><BR>Mohd.
 Adil<BR>Tata Consultancy Services<BR>Mailto: [EMAIL PROTECTED]<BR>Website: <A 
href="http://www.tcs.com">http://www.tcs.com</A><BR>____________________________________________<BR>Experience
 certainty. IT Services<BR>Business 
Solutions<BR>Outsourcing<BR>____________________________________________<pre>=====-----=====-----=====
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