From: "Jiaxun Yang" <jiaxun.yang@flygoat.com>
To: "Dave Hansen" <dave.hansen@intel.com>, x86@kernel.org
Cc: "Thomas Gleixner" <tglx@linutronix.de>,
"Ingo Molnar" <mingo@redhat.com>,
bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com,
chang.seok.bae@intel.com, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 00/10] x86: Allocate AVX512 xstate ondemand
Date: Fri, 03 Dec 2021 00:45:44 +0000 [thread overview]
Message-ID: <27b6387f-fa93-484e-a56e-12452a82f069@www.fastmail.com> (raw)
In-Reply-To: <822ced92-f165-3c5a-e0bf-dafa6f808b76@intel.com>
在2021年12月3日十二月 上午12:40，Dave Hansen写道：
> On 12/2/21 4:36 PM, Jiaxun Yang wrote:
>> Also we are going to have heterogeneous processors that
>> only some cores support AVX512, it can be helpful when
>> dealing with such processors.
>
> Really? Which x86 vendor is doing that?
Clear lower two bits of MSR 0xAF on Alder Lake give me some suprise :-)
--
- Jiaxun
next prev parent reply other threads:[~2021-12-03 0:46 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-03 0:36 [RFC PATCH 00/10] x86: Allocate AVX512 xstate ondemand Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 01/10] x86/fpu: Remove duplicated declaration of __fpu_state_size_dynamic Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 02/10] x86/fpu: Split fpu_xfd_enabled from fpu_state_size_dynamic Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 03/10] x86/fpu: Calculate xsave state addr on fly Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 04/10] x86/fpu: Remove xstate_comp_offsets cache Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 05/10] x86/fpu: Cache xstate_is_aligned Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 06/10] x86/fpu/xcr: Return all enabled xfeature if CPU doesn't support Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 07/10] x86/fpu: Rellocate fpstate on save_fpregs_to_fpstate Jiaxun Yang
2021-12-03 0:44 ` Dave Hansen
2021-12-03 11:39 ` Jiaxun Yang
2021-12-03 15:18 ` Dave Hansen
2021-12-03 15:51 ` Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 08/10] x86/fpu: Don't keep state_size in perm struct Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 09/10] x86/fpu: Split out XFEATURE_MASK_KERNEL_DYNAMIC Jiaxun Yang
2021-12-03 0:36 ` [RFC PATCH 10/10] x86/fpu: Mark AVX512 xfeatures as kernel dynamic Jiaxun Yang
2021-12-03 0:40 ` [RFC PATCH 00/10] x86: Allocate AVX512 xstate ondemand Dave Hansen
2021-12-03 0:45 ` Jiaxun Yang [this message]
2021-12-03 0:58 ` Dave Hansen
2021-12-03 9:20 ` David Laight
2021-12-03 11:42 ` Jiaxun Yang
2021-12-03 11:51 ` Borislav Petkov
2021-12-03 11:55 ` Jiaxun Yang
2021-12-04 11:55 ` Peter Zijlstra
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