From: Jon Masters <jcm@jonmasters.org>
To: Prarit Bhargava <prarit@redhat.com>, Ingo Molnar <mingo@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>,
x86@kernel.org, linux-pm@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Bhupesh Sharma <bhsharma@redhat.com>,
linux-doc@vger.kernel.org, Will Deacon <will.deacon@arm.com>,
linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
Ingo Molnar <mingo@redhat.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Lv Zheng <lv.zheng@intel.com>,
linux-serial@vger.kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/2] acpi, x86: Add SPCR table support
Date: Sun, 10 Dec 2017 15:40:08 -0500 [thread overview]
Message-ID: <d3c46a6f-745c-7643-c55f-781a6ffea8f4@jonmasters.org> (raw)
In-Reply-To: <f078ada7-1e30-41cc-28dc-077ed2a5986d@redhat.com>
On 12/08/2017 09:29 AM, Prarit Bhargava wrote:
> If I disable "Serial Port Console Debug" in my BIOS I still see the SPCR configured:
>
> [root@prarit-lab ~]# dmesg | grep SPCR
> [ 0.000000] ACPI: SPCR 0x0000000069031000 000050 (v01
> 00000000 00000000)
>
> AFAICT the SPCR is always enabled on some systems.
It's part of some of the Windows design flows that it gets incorporated,
and it should always be present.
Jon (not talking about AArch64/ARM/arm/ARMv8-A/64-bit ARM/Go ARM Go).
next prev parent reply other threads:[~2017-12-10 20:40 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-07 17:29 [PATCH 0/2] acpi, x86: Add SPCR table support Prarit Bhargava
2017-12-07 17:29 ` [PATCH 1/2] acpi, spcr: Make SPCR avialable to other architectures Prarit Bhargava
2017-12-07 18:43 ` Timur Tabi
2017-12-07 19:05 ` Prarit Bhargava
2017-12-07 19:35 ` Timur Tabi
2017-12-08 19:42 ` Prarit Bhargava
2017-12-07 17:29 ` [PATCH 2/2] acpi, x86: Use SPCR table for earlycon on x86 Prarit Bhargava
2017-12-07 18:46 ` Timur Tabi
2017-12-07 19:03 ` Prarit Bhargava
2017-12-08 6:29 ` [PATCH 0/2] acpi, x86: Add SPCR table support Ingo Molnar
2017-12-08 14:29 ` Prarit Bhargava
2017-12-08 15:31 ` Jeffrey Hugo
2017-12-08 16:02 ` Prarit Bhargava
2017-12-10 20:40 ` Jon Masters [this message]
2017-12-11 14:42 ` Ingo Molnar
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