From: Suzuki.Poulose@arm.com (Suzuki K. Poulose)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] arm64: Add support for Half precision floating point
Date: Thu, 28 Jan 2016 17:55:17 +0000 [thread overview]
Message-ID: <56AA5605.8090903@arm.com> (raw)
In-Reply-To: <20160128174428.GD17552@devel.intra.reserved-bit.com>
On 28/01/16 17:44, Siddhesh Poyarekar wrote:
> On Thu, Jan 28, 2016 at 05:27:05PM +0000, Catalin Marinas wrote:
>> Suzuki's MRS emulation only exposes the CPU feature registers and not
>> the MIDR. So this would help with choosing implementation based on
>> features (e.g. crypto) but not for micro-architecture tuning.
>
> Umm, I'm pretty sure it does, at least the patchset I tested back in
> October did. I think you may be confusing with revidr.
It does expose MIDR, but with an exception that it provides that of
the CPU where mrs was executed (as documented), unlike the CPU feature
registers which guarantee a system wide view.
Thanks
Suzuki
next prev parent reply other threads:[~2016-01-28 17:55 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-26 15:52 [PATCH] arm64: Add support for Half precision floating point Suzuki K Poulose
2016-01-26 16:02 ` Will Deacon
2016-01-26 16:11 ` Catalin Marinas
2016-01-28 16:00 ` Will Deacon
2016-02-16 11:48 ` Szabolcs Nagy
2016-02-16 11:53 ` Will Deacon
2016-02-16 12:57 ` Szabolcs Nagy
2016-01-26 16:21 ` Suzuki K. Poulose
2016-01-26 16:55 ` Siddhesh Poyarekar
2016-01-28 16:07 ` Will Deacon
2016-01-28 16:46 ` Siddhesh Poyarekar
2016-01-28 17:27 ` Catalin Marinas
2016-01-28 17:44 ` Siddhesh Poyarekar
2016-01-28 17:55 ` Suzuki K. Poulose [this message]
2016-01-28 16:51 ` Adhemerval Zanella
2016-02-02 17:31 ` Szabolcs Nagy
2016-02-02 18:12 ` Adhemerval Zanella
2016-02-02 18:25 ` Szabolcs Nagy
2016-02-02 18:28 ` Adhemerval Zanella
2016-02-26 15:37 ` Catalin Marinas
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