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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: "Jonathan Corbet" <corbet@lwn.net>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mips@vger.kernel.org,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: Re: [PATCH v3] MIPS: Implement ieee754 NAN2008 emulation mode
Date: Thu, 27 Jun 2024 12:58:03 +0200	[thread overview]
Message-ID: <Zn1FuxNw2CUttzdg@alpha.franken.de> (raw)
In-Reply-To: <20240612-mips_ieee754_emul-v3-1-2c21b450abdb@flygoat.com>

On Wed, Jun 12, 2024 at 09:38:19AM +0100, Jiaxun Yang wrote:
> +++ b/arch/mips/kernel/elf.c
> @@ -318,6 +318,10 @@ void mips_set_personality_nan(struct arch_elf_state *state)
>  	t->thread.fpu.fcr31 = c->fpu_csr31;
>  	switch (state->nan_2008) {
>  	case 0:
> +		if (!(c->fpu_msk31 & FPU_CSR_NAN2008))
> +			t->thread.fpu.fcr31 &= ~FPU_CSR_NAN2008;
> +		if (!(c->fpu_msk31 & FPU_CSR_ABS2008))
> +			t->thread.fpu.fcr31 &= ~FPU_CSR_ABS2008;

why is this needed ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

  reply	other threads:[~2024-06-27 11:05 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-06-12  8:38 [PATCH v3] MIPS: Implement ieee754 NAN2008 emulation mode Jiaxun Yang
2024-06-27 10:58 ` Thomas Bogendoerfer [this message]
2024-06-27 11:21   ` Jiaxun Yang
2024-06-27 19:54     ` Maciej W. Rozycki
2024-06-28  0:33       ` Jiaxun Yang
2024-07-09  8:55         ` Thomas Bogendoerfer
2024-07-10  5:34           ` Jiaxun Yang
2024-07-10  7:36             ` Thomas Bogendoerfer
2024-07-10  8:16               ` Jiaxun Yang
2024-07-10  9:21               ` Maciej W. Rozycki
2024-07-11  1:53                 ` Jiaxun Yang
2024-07-11 10:20                   ` Maciej W. Rozycki
2024-07-12  0:36                     ` Jiaxun Yang
2024-07-12 12:22                       ` Maciej W. Rozycki
2024-07-14  3:11                         ` Jiaxun Yang
2024-07-15 12:15                           ` Maciej W. Rozycki
2024-07-15 12:35                             ` Jiaxun Yang
2024-07-15 14:01                               ` Maciej W. Rozycki
2024-07-15 16:38                                 ` YunQiang Su
2024-08-22  8:02                               ` Thomas Bogendoerfer
2024-08-22  9:20                                 ` Jiaxun Yang
2024-07-11  1:47               ` Jiaxun Yang
2024-07-12 11:21 ` Thomas Bogendoerfer

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