From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, Dave Hansen <dave.hansen@linux.intel.com>,
Andy Lutomirski <luto@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Borislav Petkov <bp@alien8.de>
Subject: [0/3] A few 32bit x86 fixes
Date: Tue, 16 Oct 2018 22:25:22 +0200 [thread overview]
Message-ID: <20181016202525.29437-1-bigeasy@linutronix.de> (raw)
I wanted to get rid of fpu->initialized but I did not understand the FPU
EMU code. So I decided to enable it and see how it works. Turns out it
doesn't work.
While #3 fixes this I propose the removal of it since probably nobody is
using it. While at, we could also remove the 32bit x86 code since it
makes things way more complicated.
Anyway, I tried fma() in userland and it worked. The only thing that
popped was not related to FPU and is addressed in #1.
Sebastian
next reply other threads:[~2018-10-16 20:25 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-16 20:25 Sebastian Andrzej Siewior [this message]
2018-10-16 20:25 ` [PATCH 1/3] x86/mm/pat: Disable preemption around __flush_tlb_all() Sebastian Andrzej Siewior
2018-10-16 21:25 ` Andy Lutomirski
2018-10-16 21:38 ` Sebastian Andrzej Siewior
2018-10-16 23:28 ` Andy Lutomirski
2018-10-17 10:34 ` [PATCH 1/3 v2] " Sebastian Andrzej Siewior
2018-10-29 18:10 ` [tip:x86/urgent] " tip-bot for Sebastian Andrzej Siewior
2018-11-05 21:56 ` Dan Williams
2018-10-17 9:54 ` [PATCH 1/3] " David Laight
2018-10-17 10:39 ` 'Sebastian Andrzej Siewior'
2018-10-17 11:45 ` David Laight
2018-10-17 12:00 ` 'Sebastian Andrzej Siewior'
2018-10-17 11:11 ` Peter Zijlstra
2018-10-17 11:17 ` Thomas Gleixner
2018-10-17 15:47 ` Peter Zijlstra
2018-10-17 15:55 ` Thomas Gleixner
2018-10-17 16:00 ` 'Sebastian Andrzej Siewior'
2018-10-17 16:22 ` Peter Zijlstra
2018-10-16 20:25 ` [PATCH 2/3] x86/fpu: Remove second definition of fpu in __fpu__restore_sig() Sebastian Andrzej Siewior
2018-10-16 21:26 ` Andy Lutomirski
2018-10-17 9:09 ` [tip:x86/urgent] " tip-bot for Sebastian Andrzej Siewior
2018-10-18 6:22 ` tip-bot for Sebastian Andrzej Siewior
2018-10-16 20:25 ` [PATCH 3/3] x86/fpu: Save FPU registers on context switch if there is a FPU Sebastian Andrzej Siewior
2018-10-16 23:00 ` Andy Lutomirski
2018-10-17 9:10 ` [tip:x86/urgent] x86/fpu: Fix i486 + no387 boot crash by only saving FPU registers on context switch if there is an FPU tip-bot for Sebastian Andrzej Siewior
2018-10-18 6:22 ` tip-bot for Sebastian Andrzej Siewior
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