From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: mpe@ellerman.id.au, mikey@neuling.org, apopple@linux.ibm.com,
paulus@samba.org, npiggin@gmail.com,
naveen.n.rao@linux.vnet.ibm.com, peterz@infradead.org,
jolsa@kernel.org, oleg@redhat.com, fweisbec@gmail.com,
mingo@kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Subject: Re: [PATCH v2 06/16] powerpc/watchpoint: Provide DAWR number to __set_breakpoint
Date: Wed, 1 Apr 2020 14:27:24 +0530 [thread overview]
Message-ID: <cb9ccaa1-9ea2-c3d7-4724-f75ebff4b66d@linux.ibm.com> (raw)
In-Reply-To: <89f43001-0fa4-1394-4158-878fca4962e3@c-s.fr>
On 4/1/20 12:33 PM, Christophe Leroy wrote:
>
>
> Le 01/04/2020 à 08:12, Ravi Bangoria a écrit :
>> Introduce new parameter 'nr' to __set_breakpoint() which indicates
>> which DAWR should be programed. Also convert current_brk variable
>> to an array.
>>
>> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
>> ---
>> arch/powerpc/include/asm/debug.h | 2 +-
>> arch/powerpc/include/asm/hw_breakpoint.h | 2 +-
>> arch/powerpc/kernel/hw_breakpoint.c | 8 ++++----
>> arch/powerpc/kernel/process.c | 14 +++++++-------
>> arch/powerpc/kernel/signal.c | 2 +-
>> arch/powerpc/xmon/xmon.c | 2 +-
>> 6 files changed, 15 insertions(+), 15 deletions(-)
>>
>> diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h
>> index 7756026b95ca..6228935a8b64 100644
>> --- a/arch/powerpc/include/asm/debug.h
>> +++ b/arch/powerpc/include/asm/debug.h
>> @@ -45,7 +45,7 @@ static inline int debugger_break_match(struct pt_regs *regs) { return 0; }
>> static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
>> #endif
>> -void __set_breakpoint(struct arch_hw_breakpoint *brk);
>> +void __set_breakpoint(struct arch_hw_breakpoint *brk, int nr);
>
> Same, I think it would make more sense to have nr as first argument.
Sorry, didn't get your point. How will that help?
Ravi
WARNING: multiple messages have this Message-ID (diff)
From: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
To: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: apopple@linux.ibm.com, mikey@neuling.org,
Ravi Bangoria <ravi.bangoria@linux.ibm.com>,
peterz@infradead.org, oleg@redhat.com, npiggin@gmail.com,
linux-kernel@vger.kernel.org, paulus@samba.org, jolsa@kernel.org,
fweisbec@gmail.com, naveen.n.rao@linux.vnet.ibm.com,
linuxppc-dev@lists.ozlabs.org, mingo@kernel.org
Subject: Re: [PATCH v2 06/16] powerpc/watchpoint: Provide DAWR number to __set_breakpoint
Date: Wed, 1 Apr 2020 14:27:24 +0530 [thread overview]
Message-ID: <cb9ccaa1-9ea2-c3d7-4724-f75ebff4b66d@linux.ibm.com> (raw)
In-Reply-To: <89f43001-0fa4-1394-4158-878fca4962e3@c-s.fr>
On 4/1/20 12:33 PM, Christophe Leroy wrote:
>
>
> Le 01/04/2020 à 08:12, Ravi Bangoria a écrit :
>> Introduce new parameter 'nr' to __set_breakpoint() which indicates
>> which DAWR should be programed. Also convert current_brk variable
>> to an array.
>>
>> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
>> ---
>> arch/powerpc/include/asm/debug.h | 2 +-
>> arch/powerpc/include/asm/hw_breakpoint.h | 2 +-
>> arch/powerpc/kernel/hw_breakpoint.c | 8 ++++----
>> arch/powerpc/kernel/process.c | 14 +++++++-------
>> arch/powerpc/kernel/signal.c | 2 +-
>> arch/powerpc/xmon/xmon.c | 2 +-
>> 6 files changed, 15 insertions(+), 15 deletions(-)
>>
>> diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h
>> index 7756026b95ca..6228935a8b64 100644
>> --- a/arch/powerpc/include/asm/debug.h
>> +++ b/arch/powerpc/include/asm/debug.h
>> @@ -45,7 +45,7 @@ static inline int debugger_break_match(struct pt_regs *regs) { return 0; }
>> static inline int debugger_fault_handler(struct pt_regs *regs) { return 0; }
>> #endif
>> -void __set_breakpoint(struct arch_hw_breakpoint *brk);
>> +void __set_breakpoint(struct arch_hw_breakpoint *brk, int nr);
>
> Same, I think it would make more sense to have nr as first argument.
Sorry, didn't get your point. How will that help?
Ravi
next prev parent reply other threads:[~2020-04-01 8:57 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-01 6:12 [PATCH v2 00/16] powerpc/watchpoint: Preparation for more than one watchpoint Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 6:12 ` [PATCH v2 01/16] powerpc/watchpoint: Rename current DAWR macros Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 6:12 ` [PATCH v2 02/16] powerpc/watchpoint: Add SPRN macros for second DAWR Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 6:12 ` [PATCH v2 03/16] powerpc/watchpoint: Introduce function to get nr watchpoints dynamically Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 6:29 ` Christophe Leroy
2020-04-01 6:29 ` Christophe Leroy
2020-04-01 6:50 ` Ravi Bangoria
2020-04-01 6:50 ` Ravi Bangoria
2020-04-01 7:05 ` Christophe Leroy
2020-04-01 7:05 ` Christophe Leroy
2020-04-01 6:12 ` [PATCH v2 04/16] powerpc/watchpoint/ptrace: Return actual num of available watchpoints Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 6:12 ` [PATCH v2 05/16] powerpc/watchpoint: Provide DAWR number to set_dawr Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 7:03 ` Christophe Leroy
2020-04-01 7:03 ` Christophe Leroy
2020-04-01 6:12 ` [PATCH v2 06/16] powerpc/watchpoint: Provide DAWR number to __set_breakpoint Ravi Bangoria
2020-04-01 6:12 ` Ravi Bangoria
2020-04-01 7:03 ` Christophe Leroy
2020-04-01 7:03 ` Christophe Leroy
2020-04-01 8:57 ` Ravi Bangoria [this message]
2020-04-01 8:57 ` Ravi Bangoria
2020-04-01 9:11 ` Christophe Leroy
2020-04-01 9:11 ` Christophe Leroy
2020-04-01 9:44 ` Christophe Leroy
2020-04-01 9:44 ` Christophe Leroy
2020-04-01 6:13 ` [PATCH v2 07/16] powerpc/watchpoint: Get watchpoint count dynamically while disabling them Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:32 ` Christophe Leroy
2020-04-01 6:32 ` Christophe Leroy
2020-04-01 9:19 ` Ravi Bangoria
2020-04-01 9:19 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 08/16] powerpc/watchpoint: Disable all available watchpoints when !dawr_force_enable Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:33 ` Christophe Leroy
2020-04-01 6:33 ` Christophe Leroy
2020-04-01 9:00 ` Ravi Bangoria
2020-04-01 9:00 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 09/16] powerpc/watchpoint: Convert thread_struct->hw_brk to an array Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:43 ` Christophe Leroy
2020-04-01 6:43 ` Christophe Leroy
2020-04-01 9:06 ` Ravi Bangoria
2020-04-01 9:06 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 10/16] powerpc/watchpoint: Use loop for thread_struct->ptrace_bps Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 11/16] powerpc/watchpoint: Introduce is_ptrace_bp() function Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 12/16] powerpc/watchpoint: Use builtin ALIGN*() macros Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 13/16] powerpc/watchpoint: Prepare handler to handle more than one watcnhpoint Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:50 ` Christophe Leroy
2020-04-01 6:50 ` Christophe Leroy
2020-04-01 9:13 ` Ravi Bangoria
2020-04-01 9:13 ` Ravi Bangoria
2020-04-01 9:20 ` Christophe Leroy
2020-04-01 9:20 ` Christophe Leroy
2020-04-01 9:23 ` Ravi Bangoria
2020-04-01 9:23 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 14/16] powerpc/watchpoint: Don't allow concurrent perf and ptrace events Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:52 ` Christophe Leroy
2020-04-01 6:52 ` Christophe Leroy
2020-04-01 6:13 ` [PATCH v2 15/16] powerpc/watchpoint/xmon: Don't allow breakpoint overwriting Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
2020-04-01 6:13 ` [PATCH v2 16/16] powerpc/watchpoint/xmon: Support 2nd dawr Ravi Bangoria
2020-04-01 6:13 ` Ravi Bangoria
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