From: Peter Zijlstra <peterz@infradead.org>
To: Pratyush Anand <panand@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>,
mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
huawei.libin@huawei.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH V2 1/4] hw_breakpoint: Add step_needed event attribute
Date: Wed, 26 Jul 2017 09:49:48 +0200 [thread overview]
Message-ID: <20170726074947.qynkabkdpfmcjj2l@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <70b51184-dbe0-6d0b-c853-be5b556927f1@redhat.com>
On Wed, Jul 26, 2017 at 11:12:03AM +0530, Pratyush Anand wrote:
> I too had thought to put it under include/linux/perf_event.h : struct
> perf_event. But, see hw_break_module_init() which does not have knowledge of
> this structure, and we need to have some way so that none-perf kernel module
> implementation can tell that it needs default arch step handler.
>
> Do you see any alternative?
Fix the hw_breakpoint interface?
WARNING: multiple messages have this Message-ID (diff)
From: peterz@infradead.org (Peter Zijlstra)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH V2 1/4] hw_breakpoint: Add step_needed event attribute
Date: Wed, 26 Jul 2017 09:49:48 +0200 [thread overview]
Message-ID: <20170726074947.qynkabkdpfmcjj2l@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <70b51184-dbe0-6d0b-c853-be5b556927f1@redhat.com>
On Wed, Jul 26, 2017 at 11:12:03AM +0530, Pratyush Anand wrote:
> I too had thought to put it under include/linux/perf_event.h : struct
> perf_event. But, see hw_break_module_init() which does not have knowledge of
> this structure, and we need to have some way so that none-perf kernel module
> implementation can tell that it needs default arch step handler.
>
> Do you see any alternative?
Fix the hw_breakpoint interface?
next prev parent reply other threads:[~2017-07-26 7:50 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-07 12:03 [PATCH V2 0/4] ARM64: Fix irq generation between breakpoint and step exception Pratyush Anand
2017-07-07 12:03 ` Pratyush Anand
2017-07-07 12:03 ` [PATCH V2 1/4] hw_breakpoint: Add step_needed event attribute Pratyush Anand
2017-07-07 12:03 ` Pratyush Anand
2017-07-25 13:27 ` Will Deacon
2017-07-25 13:27 ` Will Deacon
2017-07-25 14:14 ` Peter Zijlstra
2017-07-25 14:14 ` Peter Zijlstra
2017-07-25 16:04 ` Mark Rutland
2017-07-25 16:04 ` Mark Rutland
2017-07-26 5:42 ` Pratyush Anand
2017-07-26 5:42 ` Pratyush Anand
2017-07-26 7:49 ` Peter Zijlstra [this message]
2017-07-26 7:49 ` Peter Zijlstra
2017-07-07 12:03 ` [PATCH V2 2/4] arm64: use hw_breakpoint_needs_single_step() to decide if step is needed Pratyush Anand
2017-07-07 12:03 ` Pratyush Anand
2017-07-07 12:03 ` [PATCH V2 3/4] hw-breakpoint: sample test: set step_needed bit field Pratyush Anand
2017-07-07 12:03 ` Pratyush Anand
2017-07-07 12:04 ` [PATCH V2 4/4] arm64: disable irq between breakpoint and step exception Pratyush Anand
2017-07-07 12:04 ` Pratyush Anand
2017-07-25 13:25 ` Will Deacon
2017-07-25 13:25 ` Will Deacon
2017-07-26 5:36 ` Pratyush Anand
2017-07-26 5:36 ` Pratyush Anand
2017-07-17 3:21 ` [PATCH V2 0/4] ARM64: Fix irq generation " Pratyush Anand
2017-07-17 3:21 ` Pratyush Anand
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