linux-kernel - Re: [PATCH] platform/x86:intel/pmc: Update Arrow Lake telemetry GUID

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Message-ID: <a51dd4b5-d853-4db3-bfef-74ce34b7bca6@linux.intel.com>
Date: Tue, 19 Aug 2025 23:21:48 -0700
From: Xi Pardee <xi.pardee@...ux.intel.com>
To: David Box <david.e.box@...ux.intel.com>,
 Mark Pearson <mpearson-lenovo@...ebb.ca>
Cc: irenic.rajneesh@...il.com, Hans de Goede <hdegoede@...hat.com>,
 Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
 "platform-driver-x86@...r.kernel.org" <platform-driver-x86@...r.kernel.org>,
 linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH] platform/x86:intel/pmc: Update Arrow Lake telemetry GUID

Hi David,

On 8/19/2025 12:41 PM, David Box wrote:
> Hi Xi,
>
> On Mon, Aug 18, 2025 at 11:40:47AM -0400, Mark Pearson wrote:
>> Thanks Xi
>>
>> On Thu, Aug 14, 2025, at 3:51 PM, Xi Pardee wrote:
>>> Updated ARL_PMT_DMU_GUID value. Arrow Lake PMT DMU GUID has
>>> been updated after it was released. This updates ensures that
>>> the die c6 value is available in the debug filesystem.
>>>
>>> Fixes: 83f168a1a437 ("platform/x86/intel/pmc: Add Arrow Lake S support
>>> to intel_pmc_core driver")
>>> Signed-off-by: Xi Pardee <xi.pardee@...ux.intel.com>
>>> ---
>>>   drivers/platform/x86/intel/pmc/core.h | 2 +-
>>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/platform/x86/intel/pmc/core.h
>>> b/drivers/platform/x86/intel/pmc/core.h
>>> index 4a94a4ee031e6..24139617eef61 100644
>>> --- a/drivers/platform/x86/intel/pmc/core.h
>>> +++ b/drivers/platform/x86/intel/pmc/core.h
>>> @@ -282,7 +282,7 @@ enum ppfear_regs {
>>>   /* Die C6 from PUNIT telemetry */
>>>   #define MTL_PMT_DMU_DIE_C6_OFFSET		15
>>>   #define MTL_PMT_DMU_GUID			0x1A067102
>>> -#define ARL_PMT_DMU_GUID			0x1A06A000
>>> +#define ARL_PMT_DMU_GUID			0x1A06A102
>>>
>>>   #define LNL_PMC_MMIO_REG_LEN			0x2708
>>>   #define LNL_PMC_LTR_OSSE			0x1B88
>>> -- 
>>> 2.43.0
>> Tested this on my Lenovo P1 G8 and confirmed that it fixed the error message that was seen previously.
>>
>> Tested-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
> If you send another version, please tag with a link to the bugzilla,
> https://bugzilla.kernel.org/show_bug.cgi?id=220421
>
> Thanks
>
> David

Will add the bugzilla link in next version.

Thanks!

Xi