From: Jonathan Cameron <Jonathan.Cameron@Huawei.com>
To: Dave Jiang <dave.jiang@intel.com>
Cc: <linux-cxl@vger.kernel.org>, <dan.j.williams@intel.com>,
<ira.weiny@intel.com>, <vishal.l.verma@intel.com>,
<alison.schofield@intel.com>
Subject: Re: [PATCH v2 5/8] cxl: create emulated cxl_hdm for devices that do not have HDM decoders
Date: Fri, 13 Jan 2023 13:54:36 +0000 [thread overview]
Message-ID: <20230113135436.00006e7f@Huawei.com> (raw)
In-Reply-To: <167330062229.975161.18102703412584824456.stgit@djiang5-mobl3.local>
On Mon, 09 Jan 2023 14:43:43 -0700
Dave Jiang <dave.jiang@intel.com> wrote:
> CXL rev3 spec 8.1.3
> RCDs may not have HDM register blocks.
Add a line break here as next bit isn't a spec quote but
an implementation detail of the linux kernel support.
> Create a fake HDM with information
> from the CXL PCIe DVSEC registers. The decoder count will be set to the
> HDM count retrieved from the DVSEC cap register.
>
> Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Otherwise LGTM
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
next prev parent reply other threads:[~2023-01-13 13:59 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-09 21:43 [PATCH v2 0/8] cxl: Introduce HDM decoder emulation from DVSEC range registers Dave Jiang
2023-01-09 21:43 ` [PATCH v2 1/8] cxl: break out range register decoding from cxl_hdm_decode_init() Dave Jiang
2023-01-13 13:36 ` Jonathan Cameron
2023-01-17 20:12 ` Dave Jiang
2023-01-09 21:43 ` [PATCH v2 2/8] cxl: export cxl_dvsec_rr_decode() to cxl_port Dave Jiang
2023-01-13 13:43 ` Jonathan Cameron
2023-01-09 21:43 ` [PATCH v2 3/8] cxl: refactor cxl_hdm_decode_init() Dave Jiang
2023-01-13 13:46 ` Jonathan Cameron
2023-01-09 21:43 ` [PATCH v2 4/8] cxl: emulate HDM decoder from DVSEC range registers Dave Jiang
2023-01-13 13:51 ` Jonathan Cameron
2023-01-09 21:43 ` [PATCH v2 5/8] cxl: create emulated cxl_hdm for devices that do not have HDM decoders Dave Jiang
2023-01-13 13:54 ` Jonathan Cameron [this message]
2023-01-13 14:01 ` Jonathan Cameron
2023-01-09 21:43 ` [PATCH v2 6/8] cxl: create emulated decoders for devices without " Dave Jiang
2023-01-13 14:02 ` Jonathan Cameron
2023-01-09 21:44 ` [PATCH v2 7/8] cxl: Add emulation when HDM decoders are not committed Dave Jiang
2023-01-13 14:07 ` Jonathan Cameron
2023-01-17 23:19 ` Dave Jiang
2023-01-18 10:12 ` Jonathan Cameron
2023-01-18 15:22 ` Dave Jiang
2023-01-09 21:44 ` [PATCH v2 8/8] cxl: remove locked check for dvsec_range_allowed() Dave Jiang
2023-01-13 14:08 ` Jonathan Cameron
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