From: Gregory Price <gourry@gourry.net>
To: "Cheatham, Benjamin" <benjamin.cheatham@amd.com>
Cc: linux-mm@kvack.org, linux-cxl@vger.kernel.org,
nvdimm@lists.linux.dev, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
kernel-team@meta.com, dave@stgolabs.net,
jonathan.cameron@huawei.com, dave.jiang@intel.com,
alison.schofield@intel.com, vishal.l.verma@intel.com,
ira.weiny@intel.com, dan.j.williams@intel.com,
willy@infradead.org, jack@suse.cz, terry.bowman@amd.com,
john@jagalactic.com
Subject: Re: [PATCH 8/9] cxl/core: Add dax_kmem_region and sysram_region drivers
Date: Mon, 2 Feb 2026 14:19:10 -0500 [thread overview]
Message-ID: <aYD4roMbjyBkK9l5@gourry-fedora-PF4VCD3F> (raw)
In-Reply-To: <9652a424-6eb1-462f-8cbd-181af880f98b@amd.com>
On Mon, Feb 02, 2026 at 11:02:37AM -0600, Cheatham, Benjamin wrote:
> Sorry if this is a stupid question, but what stops auto regions from binding to the
> sysram/dax region drivers? They all bind to region devices, so I assume there's something
> keeping them from binding before the core region driver gets a chance.
>
I just grok'd the implications of this question.
I *think* the answer is "probe order" - which is bad.
I need to think about this a bit more and get a more definitive answer.
~Gregory
next prev parent reply other threads:[~2026-02-02 19:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-29 21:04 [PATCH 0/9] cxl: explicit DAX driver selection and hotplug Gregory Price
2026-01-29 21:04 ` [PATCH 1/9] mm/memory_hotplug: pass online_type to online_memory_block() via arg Gregory Price
2026-02-02 17:10 ` Jonathan Cameron
2026-02-02 17:46 ` Gregory Price
2026-01-29 21:04 ` [PATCH 2/9] mm/memory_hotplug: add __add_memory_driver_managed() with online_type arg Gregory Price
2026-02-02 17:25 ` Jonathan Cameron
2026-02-02 18:02 ` Gregory Price
2026-02-02 18:46 ` Jonathan Cameron
2026-02-02 21:37 ` Gregory Price
2026-02-04 21:08 ` David Hildenbrand (arm)
2026-02-05 4:23 ` Gregory Price
2026-01-29 21:04 ` [PATCH 3/9] dax: plumb online_type from dax_kmem creators to hotplug Gregory Price
2026-01-29 21:04 ` [PATCH 4/9] drivers/cxl,dax: add dax driver mode selection for dax regions Gregory Price
2026-02-02 17:54 ` Jonathan Cameron
2026-01-29 21:04 ` [PATCH 5/9] cxl/core/region: move pmem region driver logic into pmem_region Gregory Price
2026-02-02 17:56 ` Jonathan Cameron
2026-01-29 21:04 ` [PATCH 6/9] cxl/core/region: move dax region device logic into dax_region.c Gregory Price
2026-02-02 17:57 ` Jonathan Cameron
2026-01-29 21:04 ` [PATCH 7/9] cxl/core: add cxl_devdax_region driver for explicit userland region binding Gregory Price
2026-01-29 21:04 ` [PATCH 8/9] cxl/core: Add dax_kmem_region and sysram_region drivers Gregory Price
2026-01-30 21:27 ` Cheatham, Benjamin
2026-01-30 22:12 ` Gregory Price
2026-02-02 17:02 ` Cheatham, Benjamin
2026-02-02 17:41 ` Gregory Price
2026-02-02 19:19 ` Gregory Price [this message]
2026-02-02 18:20 ` Jonathan Cameron
2026-02-02 18:23 ` Gregory Price
2026-01-29 21:04 ` [PATCH 9/9] Documentation/driver-api/cxl: add dax and sysram driver documentation Gregory Price
2026-01-29 21:17 ` [PATCH 0/9] cxl: explicit DAX driver selection and hotplug Gregory Price
2026-01-30 17:34 ` Gregory Price
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