From: Richard Henderson <richard.henderson@linaro.org>
To: BALATON Zoltan <balaton@eik.bme.hu>,
Peter Maydell <peter.maydell@linaro.org>
Cc: "Jonathan Cameron" <Jonathan.Cameron@huawei.com>,
qemu-devel@nongnu.org, "Michael Tsirkin" <mst@redhat.com>,
"Fan Ni" <fan.ni@samsung.com>,
linux-cxl@vger.kernel.org, linuxarm@huawei.com,
"Ira Weiny" <ira.weiny@intel.com>,
"Michael Roth" <michael.roth@amd.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>,
"Dave Jiang" <dave.jiang@intel.com>,
"Markus Armbruster" <armbru@redhat.com>,
"Daniel P . Berrangé" <berrange@redhat.com>,
"Eric Blake" <eblake@redhat.com>,
"Mike Maslenkin" <mike.maslenkin@gmail.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Thomas Huth" <thuth@redhat.com>
Subject: Re: [PATCH v6 1/4] bswap: Add the ability to store to an unaligned 24 bit field
Date: Sat, 20 May 2023 08:15:36 -0700 [thread overview]
Message-ID: <4dd8a802-9a8c-77ab-6355-38910eefe19e@linaro.org> (raw)
In-Reply-To: <04b53845-b54f-458f-bc6f-f5aed86cdd06@eik.bme.hu>
On 5/20/23 06:15, BALATON Zoltan wrote:
> On Sat, 20 May 2023, Peter Maydell wrote:
>> On Fri, 19 May 2023 at 15:19, Jonathan Cameron via
>> <qemu-devel@nongnu.org> wrote:
>>>
>>> From: Ira Weiny <ira.weiny@intel.com>
>>>
>>> CXL has 24 bit unaligned fields which need to be stored to. CXL is
>>> specified as little endian.
>>>
>>> Define st24_le_p() and the supporting functions to store such a field
>>> from a 32 bit host native value.
>>>
>>> The use of b, w, l, q as the size specifier is limiting. So "24" was
>>> used for the size part of the function name.
>
> Maybe it's clearer to use 24 but if we want to keep these somewhat consistent how about
> using t for Triplet, Three-bytes or Twenty-four?
I think it's clearer to use '3'.
When I added 128-bit support I used cpu_ld16_mmu.
I think it would be clearer to not use letters anywhere, and to use units of bytes instead
of units of bits (no one can store just a bit), but changing everything is a big job.
r~
next prev parent reply other threads:[~2023-05-20 15:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 14:17 [PATCH v6 0/4] hw/cxl: Poison get, inject, clear Jonathan Cameron via
2023-05-19 14:18 ` [PATCH v6 1/4] bswap: Add the ability to store to an unaligned 24 bit field Jonathan Cameron via
2023-05-19 16:08 ` Philippe Mathieu-Daudé
2023-05-19 16:24 ` Jonathan Cameron via
2023-05-19 16:43 ` Philippe Mathieu-Daudé
2023-05-20 12:37 ` Peter Maydell
2023-05-20 13:15 ` BALATON Zoltan
2023-05-20 15:15 ` Richard Henderson [this message]
2023-05-20 17:08 ` Philippe Mathieu-Daudé
2023-05-21 9:05 ` Michael S. Tsirkin
2023-05-22 12:09 ` Jonathan Cameron via
2023-05-22 11:59 ` Jonathan Cameron via
2023-05-19 14:18 ` [PATCH v6 2/4] hw/cxl: QMP based poison injection support Jonathan Cameron via
2023-05-22 11:20 ` Jonathan Cameron via
2023-05-19 14:18 ` [PATCH v6 3/4] hw/cxl: Add poison injection via the mailbox Jonathan Cameron via
2023-05-19 14:18 ` [PATCH v6 4/4] hw/cxl: Add clear poison mailbox command support Jonathan Cameron via
2023-05-19 17:48 ` Ira Weiny
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