From: Darren Hart <dvhart@infradead.org>
To: "Zha, Qipeng" <qipeng.zha@intel.com>
Cc: Rafael Wysocki <rjw@rjwysocki.net>,
"Shevchenko, Andriy" <andriy.shevchenko@intel.com>,
"platform-driver-x86@vger.kernel.org"
<platform-driver-x86@vger.kernel.org>,
"Westerberg, Mika" <mika.westerberg@intel.com>,
"Xue, Gavin" <gavin.xue@intel.com>
Subject: Re: [PATCH v7] platform:x86: add Intel P-Unit mailbox IPC driver
Date: Thu, 22 Oct 2015 17:43:07 +0200 [thread overview]
Message-ID: <20151022154307.GB4289@malice.jf.intel.com> (raw)
In-Reply-To: <C6287702A945AC47BE5DB5DFD4B5C6DD03813AD0@SHSMSX104.ccr.corp.intel.com>
On Thu, Oct 22, 2015 at 03:18:16PM +0000, Zha, Qipeng wrote:
> >Is the ASL fragment you provided collected from a running Linux system using
> >acpidump? If so, then the resources ACPI advertises to the OS are not
> >actually available... and that can't be acceptable.
> This is real ASL code I got from BIOS team and validated on bxt platform.
> Confirmed BIOS runtime code will update "acpi table" in memory before switch
> to os, for those resource which need to get/read from hardware dynamically,
> in this case, MINF and MDAT is set in runtime when boot BIOS and size of res0
> is set as 4B.
So the ASL you provided was not what the Linux kernel is seeing, correct?
Can you please provide a DSDT disassembly from the running Linux system please,
such as:
# cp /sys/firmware/acpi/tables/DSDT DSDT.dat
# iasl -d DSDT.dat
Then find this device in DSDT.dsl and paste it here please.
--
Darren Hart
Intel Open Source Technology Center
next prev parent reply other threads:[~2015-10-22 15:43 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-09 8:49 [PATCH v7] platform:x86: add Intel P-Unit mailbox IPC driver Qipeng Zha
2015-10-09 13:33 ` Shevchenko, Andriy
2015-10-10 3:07 ` Zha, Qipeng
2015-10-15 5:16 ` Darren Hart
2015-10-21 12:51 ` Darren Hart
2015-10-22 1:01 ` Zha, Qipeng
2015-10-22 8:04 ` Darren Hart
2015-10-22 8:35 ` Shevchenko, Andriy
2015-10-22 15:18 ` Zha, Qipeng
2015-10-22 15:43 ` Darren Hart [this message]
2015-10-24 13:35 ` Rafael J. Wysocki
2015-10-26 8:51 ` Zha, Qipeng
2015-10-27 12:30 ` Shevchenko, Andriy
2015-10-28 1:27 ` Darren Hart
2015-10-30 6:11 ` Zha, Qipeng
2015-10-30 9:56 ` Shevchenko, Andriy
2015-10-15 10:35 ` Shevchenko, Andriy
2015-10-15 10:39 ` Shevchenko, Andriy
2015-10-15 15:29 ` Darren Hart
2015-10-15 15:36 ` Shevchenko, Andriy
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