linux-kernel - Re: [PATCH v4 12/28] cxl/cdat: Gather DSMAS data for DCD regions

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Message-ID: <29531a24-a86e-4e2d-9f7b-d886177099d7@intel.com>
Date: Mon, 14 Oct 2024 22:52:34 +0200
From: "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>
To: Ira Weiny <ira.weiny@...el.com>, "Rafael J. Wysocki" <rafael@...nel.org>
CC: Dave Jiang <dave.jiang@...el.com>, Fan Ni <fan.ni@...sung.com>, "Jonathan
 Cameron" <Jonathan.Cameron@...wei.com>, Navneet Singh
	<navneet.singh@...el.com>, Jonathan Corbet <corbet@....net>, Andrew Morton
	<akpm@...ux-foundation.org>, Dan Williams <dan.j.williams@...el.com>,
	Davidlohr Bueso <dave@...olabs.net>, Alison Schofield
	<alison.schofield@...el.com>, Vishal Verma <vishal.l.verma@...el.com>,
	<linux-btrfs@...r.kernel.org>, <linux-cxl@...r.kernel.org>,
	<linux-doc@...r.kernel.org>, <nvdimm@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, Robert Moore <robert.moore@...el.com>, "Len
 Brown" <lenb@...nel.org>, <linux-acpi@...r.kernel.org>,
	<acpica-devel@...ts.linux.dev>
Subject: Re: [PATCH v4 12/28] cxl/cdat: Gather DSMAS data for DCD regions


On 10/11/2024 10:38 PM, Ira Weiny wrote:
> Rafael J. Wysocki wrote:
>> On Tue, Oct 8, 2024 at 1:17 AM Ira Weiny <ira.weiny@...el.com> wrote:
> [snip]
>
>>> diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
>>> index 199afc2cd122..387fc821703a 100644
>>> --- a/include/acpi/actbl1.h
>>> +++ b/include/acpi/actbl1.h
>>> @@ -403,6 +403,8 @@ struct acpi_cdat_dsmas {
>>>   /* Flags for subtable above */
>>>
>>>   #define ACPI_CDAT_DSMAS_NON_VOLATILE        (1 << 2)
>>> +#define ACPI_CDAT_DSMAS_SHAREABLE           (1 << 3)
>>> +#define ACPI_CDAT_DSMAS_READ_ONLY           (1 << 6)
>>>
>>>   /* Subtable 1: Device scoped Latency and Bandwidth Information Structure (DSLBIS) */
>>>
>> Is there an upstream ACPICA commit for this?
> There is a PR for it now.
>
> 	https://github.com/acpica/acpica/pull/976
>
> Do I need to reference that in this patch?  Or wait for it to be merged
> and drop this hunk?

Wait for it to be merged first.  Then either drop this hunk and wait for 
an ACPICA release (that may not happen soon, though), or send a Linux 
patch corresponding to it with a Link tag pointing to the above.

Thanks!