From: Jonathan Cameron <jic23@kernel.org>
To: Anisa Su <anisa.su887@gmail.com>
Cc: linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev,
linux-kernel@vger.kernel.org, Dave Jiang <dave.jiang@intel.com>,
Alison Schofield <alison.schofield@intel.com>,
Fan Ni <nifan.cxl@gmail.com>, Li Ming <ming.li@zohomail.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Davidlohr Bueso <dave@stgolabs.net>,
Ira Weiny <iweiny@kernel.org>,
Benjamin Cheatham <benjamin.cheatham@amd.com>,
Wonjae Lee <wj28.lee@samsung.com>,
Junhee Park <jh9934.park@samsung.com>,
Heesoo Kim <habil.kim@samsung.com>,
Anisa Su <anisa.su@samsung.com>
Subject: Re: [PATCH v12 6/8] cxl/mem: Configure dynamic capacity interrupts
Date: Tue, 4 Aug 2026 01:13:26 +0100 [thread overview]
Message-ID: <20260804011326.73a2b4df@jic23-huawei> (raw)
In-Reply-To: <20260731084901.1512819-7-anisa.su@samsung.com>
On Fri, 31 Jul 2026 01:48:11 -0700
Anisa Su <anisa.su887@gmail.com> wrote:
> From: Ira Weiny <iweiny@kernel.org>
>
> Dynamic Capacity Devices (DCD) support extent change notifications
> through the event log mechanism. The interrupt mailbox commands were
> extended in CXL 3.1 to support these notifications. Firmware can't
> configure DCD events to be FW controlled but can retain control of
> memory events.
>
> Configure DCD event log interrupts on devices supporting dynamic
> capacity. Disable DCD if interrupts are not supported.
>
> Care is taken to preserve the interrupt policy set by the FW if FW first
> has been selected by the BIOS.
>
> Based on an original patch by Navneet Singh.
>
> Signed-off-by: Ira Weiny <iweiny@kernel.org>
> Signed-off-by: Anisa Su <anisa.su@samsung.com>
> Tested-by: Wonjae Lee <wj28.lee@samsung.com>
> Tested-by: Junhee Park <jh9934.park@samsung.com>
> Tested-by: Heesoo Kim <habil.kim@samsung.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@oss.qualcomm.com>
next prev parent reply other threads:[~2026-08-04 0:13 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-31 8:48 [PATCH v12 0/8] DCD Prep Series Anisa Su
2026-07-31 8:48 ` [PATCH v12 1/8] cxl/mbox: Flag support for Dynamic Capacity Devices (DCD) Anisa Su
2026-08-03 18:03 ` Dave Jiang
2026-08-03 21:30 ` Alison Schofield
2026-08-03 23:12 ` Jonathan Cameron
2026-08-04 15:45 ` Gregory Price
2026-08-04 15:45 ` Gregory Price
2026-08-04 18:10 ` Anisa Su
2026-08-04 16:55 ` Alison Schofield
2026-08-04 18:13 ` Anisa Su
2026-07-31 8:48 ` [PATCH v12 2/8] cxl/mem: Read dynamic capacity configuration from the device Anisa Su
2026-07-31 9:01 ` sashiko-bot
2026-08-04 20:30 ` Anisa Su
2026-08-03 14:33 ` Richard Cheng
2026-08-03 22:11 ` Anisa Su
2026-08-03 21:52 ` Alison Schofield
2026-08-04 9:12 ` Anisa Su
2026-08-04 16:00 ` Gregory Price
2026-08-03 23:55 ` Jonathan Cameron
2026-08-04 9:54 ` Anisa Su
2026-07-31 8:48 ` [PATCH v12 3/8] cxl/cdat: Gather DSMAS data for DCD partitions Anisa Su
2026-07-31 9:02 ` sashiko-bot
2026-08-04 0:07 ` Jonathan Cameron
2026-08-05 8:30 ` Anisa Su
2026-08-03 22:56 ` Alison Schofield
2026-08-05 6:58 ` Anisa Su
2026-07-31 8:48 ` [PATCH v12 4/8] cxl/events: Split event msgnum configuration from irq setup Anisa Su
2026-08-03 23:01 ` Alison Schofield
2026-07-31 8:48 ` [PATCH v12 5/8] cxl/pci: Factor out interrupt policy check Anisa Su
2026-08-03 23:55 ` Alison Schofield
2026-08-06 12:27 ` Anisa Su
2026-07-31 8:48 ` [PATCH v12 6/8] cxl/mem: Configure dynamic capacity interrupts Anisa Su
2026-07-31 9:04 ` sashiko-bot
2026-08-01 9:30 ` Anisa Su
2026-08-04 0:25 ` Alison Schofield
2026-08-06 23:27 ` Anisa Su
2026-08-04 0:13 ` Jonathan Cameron [this message]
2026-08-04 0:34 ` Alison Schofield
2026-08-06 22:11 ` Anisa Su
2026-07-31 8:48 ` [PATCH v12 7/8] cxl/core: Return endpoint decoder information from region search Anisa Su
2026-07-31 9:01 ` sashiko-bot
2026-08-04 1:02 ` Alison Schofield
2026-07-31 8:48 ` [PATCH v12 8/8] cxl/core: Enforce partition order/simplify partition calls Anisa Su
2026-08-04 0:16 ` Jonathan Cameron
2026-08-04 1:37 ` Alison Schofield
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