From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: "linux-perf-users@vger.kernel.org"
<linux-perf-users@vger.kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"dvhart@linux.intel.com" <dvhart@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"acme@redhat.com" <acme@redhat.com>,
"andi@firstfloor.org" <andi@firstfloor.org>,
"noamc@ezchip.com" <noamc@ezchip.com>,
"dsahern@gmail.com" <dsahern@gmail.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>,
"giladb@ezchip.com" <giladb@ezchip.com>
Subject: Re: [RFC] perf: fix building for ARCv1
Date: Thu, 4 Feb 2016 09:43:38 +0530 [thread overview]
Message-ID: <56B2CFF2.4030503@synopsys.com> (raw)
In-Reply-To: <1454516455.2811.4.camel__10775.5710989752$1454516490$gmane$org@synopsys.com>
+CC Noam
On Wednesday 03 February 2016 09:50 PM, Alexey Brodkin wrote:
>> I agree with the current solution to add -atomic to for arc700 builds.
>> > Although making that default for arc700 tools will be better but that will not fix
>> > things before next release of tools etc.
>> >
>> > But we *do* need to improve generic solution
>> > 1. Add atomics detection in perf to add fall back arch stubs
>> > 2. ARC needs to add syscall for facilitating atomic r-m-w !
> So the most recent ARC GNU tools (2015.12) were just released yesterday
> and still atomics are disabled by default for ARCv1.
> That means perf will continue to fail on building for now.
>
> Do you think we may apply my initial fix to 4.5 while it is in development and
> then to stable trees as well?
Noam, what's the atomic story for EZChip. Do you support such things for user
space in GNU tools. If -atomic is added to perf user space builds are you guys OK!
-Vineet
WARNING: multiple messages have this Message-ID (diff)
From: Vineet.Gupta1@synopsys.com (Vineet Gupta)
To: linux-snps-arc@lists.infradead.org
Subject: [RFC] perf: fix building for ARCv1
Date: Thu, 4 Feb 2016 09:43:38 +0530 [thread overview]
Message-ID: <56B2CFF2.4030503@synopsys.com> (raw)
In-Reply-To: <1454516455.2811.4.camel__10775.5710989752$1454516490$gmane$org@synopsys.com>
+CC Noam
On Wednesday 03 February 2016 09:50 PM, Alexey Brodkin wrote:
>> I agree with the current solution to add -atomic to for arc700 builds.
>> > Although making that default for arc700 tools will be better but that will not fix
>> > things before next release of tools etc.
>> >
>> > But we *do* need to improve generic solution
>> > 1. Add atomics detection in perf to add fall back arch stubs
>> > 2. ARC needs to add syscall for facilitating atomic r-m-w !
> So the most recent ARC GNU tools (2015.12) were just released yesterday
> and still atomics are disabled by default for ARCv1.
> That means perf will continue to fail on building for now.
>
> Do you think we may apply my initial fix to 4.5 while it is in development and
> then to stable trees as well?
Noam, what's the atomic story for EZChip. Do you support such things for user
space in GNU tools. If -atomic is added to perf user space builds are you guys OK!
-Vineet
WARNING: multiple messages have this Message-ID (diff)
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
To: Alexey Brodkin <Alexey.Brodkin@synopsys.com>,
Noam Camus <noamc@ezchip.com>
Cc: "linux-perf-users@vger.kernel.org"
<linux-perf-users@vger.kernel.org>,
"peterz@infradead.org" <peterz@infradead.org>,
"dvhart@linux.intel.com" <dvhart@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"acme@redhat.com" <acme@redhat.com>,
"andi@firstfloor.org" <andi@firstfloor.org>,
"noamc@ezchip.com" <noamc@ezchip.com>,
"dsahern@gmail.com" <dsahern@gmail.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-snps-arc@lists.infradead.org"
<linux-snps-arc@lists.infradead.org>,
"giladb@ezchip.com" <giladb@ezchip.com>
Subject: Re: [RFC] perf: fix building for ARCv1
Date: Thu, 4 Feb 2016 09:43:38 +0530 [thread overview]
Message-ID: <56B2CFF2.4030503@synopsys.com> (raw)
In-Reply-To: <1454516455.2811.4.camel__10775.5710989752$1454516490$gmane$org@synopsys.com>
+CC Noam
On Wednesday 03 February 2016 09:50 PM, Alexey Brodkin wrote:
>> I agree with the current solution to add -atomic to for arc700 builds.
>> > Although making that default for arc700 tools will be better but that will not fix
>> > things before next release of tools etc.
>> >
>> > But we *do* need to improve generic solution
>> > 1. Add atomics detection in perf to add fall back arch stubs
>> > 2. ARC needs to add syscall for facilitating atomic r-m-w !
> So the most recent ARC GNU tools (2015.12) were just released yesterday
> and still atomics are disabled by default for ARCv1.
> That means perf will continue to fail on building for now.
>
> Do you think we may apply my initial fix to 4.5 while it is in development and
> then to stable trees as well?
Noam, what's the atomic story for EZChip. Do you support such things for user
space in GNU tools. If -atomic is added to perf user space builds are you guys OK!
-Vineet
next prev parent reply other threads:[~2016-02-04 4:13 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1445088959-3058-1-git-send-email-abrodkin@synopsys.com>
2015-10-17 14:19 ` [RFC] perf: fix building for ARCv1 Vineet Gupta
2015-10-18 11:15 ` Alexey Brodkin
2015-10-18 11:15 ` Alexey Brodkin
2015-10-18 23:14 ` Andi Kleen
2015-10-18 23:14 ` Andi Kleen
2015-10-19 4:58 ` Vineet Gupta
2015-10-19 5:49 ` Andi Kleen
2015-10-19 5:49 ` Andi Kleen
2015-10-19 9:28 ` Vineet Gupta
2015-10-19 9:35 ` Peter Zijlstra
2015-10-19 9:46 ` Vineet Gupta
2015-10-19 9:51 ` Peter Zijlstra
2015-10-19 10:04 ` Vineet Gupta
2015-10-20 8:00 ` Vineet Gupta
2015-10-20 10:11 ` Peter Zijlstra
2015-10-20 10:45 ` Vineet Gupta
2015-10-29 15:58 ` Alexey Brodkin
2015-10-29 15:58 ` Alexey Brodkin
2015-10-29 15:58 ` Alexey Brodkin
2015-10-30 6:19 ` Vineet Gupta
2015-10-30 6:19 ` Vineet Gupta
2016-02-03 16:20 ` Alexey Brodkin
2016-02-03 16:20 ` Alexey Brodkin
[not found] ` <1454516455.2811.4.camel__10775.5710989752$1454516490$gmane$org@synopsys.com>
2016-02-04 4:13 ` Vineet Gupta [this message]
2016-02-04 4:13 ` Vineet Gupta
2016-02-04 4:13 ` Vineet Gupta
2016-02-05 11:18 ` Noam Camus
2016-02-05 11:18 ` Noam Camus
2016-02-05 16:10 ` acme
2016-02-05 16:10 ` acme
2016-02-10 3:09 ` Vineet Gupta
2016-02-10 3:09 ` Vineet Gupta
2016-10-18 18:58 ` Vineet Gupta
2016-10-18 18:58 ` Vineet Gupta
2016-10-24 16:17 ` [PATCH-v2] ARC: syscall for userspace cmpxchg assist Vineet Gupta
2016-10-24 16:17 ` Vineet Gupta
2016-11-04 20:16 ` Vineet Gupta
2016-11-04 20:16 ` Vineet Gupta
2016-11-07 18:50 ` [PATCH] ARC: tweak semantics of " Vineet Gupta
2016-11-07 18:50 ` Vineet Gupta
2015-10-30 6:21 ` [RFC] perf: fix building for ARCv1 Vineet Gupta
2015-10-30 6:21 ` Vineet Gupta
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