From: Robert Richter <rrichter@amd.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>,
linux-cxl@vger.kernel.org, dave@stgolabs.net,
jonathan.cameron@huawei.com, alison.schofield@intel.com,
vishal.l.verma@intel.com, ira.weiny@intel.com
Subject: Re: [PATCH] cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH
Date: Mon, 29 Apr 2024 14:23:16 +0200 [thread overview]
Message-ID: <Zi-RNOZ7OlK6rbuA@rric.localdomain> (raw)
In-Reply-To: <662c425f15f73_b6e0294dd@dwillia2-mobl3.amr.corp.intel.com.notmuch>
On 26.04.24 17:10:07, Dan Williams wrote:
> Now, that said, if someone can think of why the driver needs to do
> dynamic performance enumeration for RCH (i.e. a platform BIOS does not
> populate HMAT), they should speak up now.
I wouldn't stick with that forever as you never know, but for now
disabling it for RCDs looks good to me to fix this, esp. considering
we are already at -rc6.
E.g I found in cxl-3.1, 9.11.6 RCD Discovery:
"""
In the future, a
CXL-aware OS may extract this information directly from the device via
Table Access DOE.
"""
Thanks,
-Robert
next prev parent reply other threads:[~2024-04-29 12:23 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-26 22:47 [PATCH] cxl: Fix cxl_endpoint_get_perf_coordinate() support for RCH Dave Jiang
2024-04-27 0:10 ` Dan Williams
2024-04-29 12:23 ` Robert Richter [this message]
2024-04-30 16:54 ` Jonathan Cameron
2024-04-29 12:00 ` Robert Richter
2024-04-29 15:56 ` Dave Jiang
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