From: Mike Travis <mike.travis@hpe.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Hedi Berriche <hedi@sgi.com>,
Russ Anderson <russ.anderson@hpe.com>,
Dimitri Sivanich <dimitri.sivanich@hpe.com>,
Borislav Petkov <bp@alien8.de>,
Kate Stewart <kstewart@linuxfoundation.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Philippe Ombredanne <pombredanne@nexb.com>,
Pavel Tatashin <pasha.tatashin@oracle.com>,
Dave Hansen <dave.hansen@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
Ram Pai <linuxram@us.ibm.com>, Juergen Gross <jgross@suse.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Petr Tesarik <ptesarik@suse.cz>,
Sinan Kaya <okaya@codeaurora.org>, <x86@kernel.org>,
<linux-kernel@vger.kernel.org>,
Hedi Berriche <hedi.berriche@hpe.com>
Subject: Re: [PATCH 1/2] x86/platform/uv: Add is_early_uv_system check
Date: Tue, 2 Oct 2018 07:20:55 -0700 [thread overview]
Message-ID: <b63d338b-c93f-cd05-2d99-59d66662d390@hpe.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1810020818530.32062@nanos.tec.linutronix.de>
On 10/1/2018 11:20 PM, Thomas Gleixner wrote:
> On Mon, 1 Oct 2018, Mike Travis wrote:
>
>> Introduce is_early_uv_system() which uses efi.uv_systab to decide early
>> in the boot process whether we're on a UV system.
>>
>> This is needed to skip other early setup/init code that might break UV
>> platform if done too early such as before necessary ACPI tables parsing
>> takes place.
>>
>> Signed-off-by: Mike Travis <mike.travis@hpe.com>
>> Signed-off-by: Hedi Berriche <hedi.berriche@hpe.com>
>
> This SOB chain is wrong. I don't see how Hedi is involved in this. If this
> wants to express that the patch was developed together please see
> Documentation for the Co-developed-by tag.
Hedi suggested a "Suggested-by:" tag, would that suffice?
>
>> Reviewed-by: Russ Anderson <rja@hpe.com>
>> Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
>> ---
>> arch/x86/include/asm/uv/uv.h | 6 ++++++
>> 1 file changed, 6 insertions(+)
>>
>> --- linux.orig/arch/x86/include/asm/uv/uv.h
>> +++ linux/arch/x86/include/asm/uv/uv.h
>> @@ -10,8 +10,13 @@ struct cpumask;
>> struct mm_struct;
>>
>> #ifdef CONFIG_X86_UV
>> +#include <linux/efi.h>
>>
>> extern enum uv_system_type get_uv_system_type(void);
>> +static inline int is_early_uv_system(void)
>
> Can you please make this bool?
>
>> +{
>> + return !((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || !efi.uv_systab);
>> +}
>
> Thanks,
>
> tglx
>
next prev parent reply other threads:[~2018-10-02 14:21 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-02 1:22 [PATCH 0/2] Fix community TSC ADJUST breakage causing TSC failure Mike Travis
2018-10-02 1:22 ` [PATCH 1/2] x86/platform/uv: Add is_early_uv_system check Mike Travis
2018-10-02 6:20 ` Thomas Gleixner
2018-10-02 14:20 ` Mike Travis [this message]
2018-10-02 14:23 ` Thomas Gleixner
2018-10-02 1:22 ` [PATCH 2/2] x86/tsc: Fix UV TSC initialization Mike Travis
2018-10-02 6:22 ` Thomas Gleixner
2018-10-02 14:21 ` Mike Travis
2018-10-02 6:24 ` [PATCH 0/2] Fix community TSC ADJUST breakage causing TSC failure Thomas Gleixner
2018-10-02 14:26 ` Travis, Mike
2018-10-02 14:28 ` Thomas Gleixner
2018-10-02 18:01 [PATCH 0/2] Fix " Mike Travis
2018-10-02 18:01 ` [PATCH 1/2] x86/platform/uv: Add is_early_uv_system check Mike Travis
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