[RFC PATCH 4/9] mips: allocate sys_membarrier system call number

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* [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
       [not found] <1440698215-8355-1-git-send-email-mathieu.desnoyers@efficios.com>
@ 2015-08-27 17:56 ` Mathieu Desnoyers
  2015-08-28  7:40   ` Ralf Baechle
  0 siblings, 1 reply; 3+ messages in thread
From: Mathieu Desnoyers @ 2015-08-27 17:56 UTC (permalink / raw)
  To: Andrew Morton, linux-api
  Cc: linux-kernel, Mathieu Desnoyers, Ralf Baechle, linux-mips

[ Untested on this architecture. To try it out: fetch linux-next/akpm,
  apply this patch, build/run a membarrier-enabled kernel, and do make
  kselftest. ]

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
---
 arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
 arch/mips/kernel/scall32-o32.S      |  1 +
 arch/mips/kernel/scall64-64.S       |  1 +
 arch/mips/kernel/scall64-n32.S      |  1 +
 arch/mips/kernel/scall64-o32.S      |  1 +
 5 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index d0bdfaa..b107983 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -378,16 +378,17 @@
 #define __NR_bpf			(__NR_Linux + 355)
 #define __NR_execveat			(__NR_Linux + 356)
 #define __NR_mlock2			(__NR_Linux + 357)
+#define __NR_membarrier			(__NR_Linux + 358)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		357
+#define __NR_Linux_syscalls		358
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		357
+#define __NR_O32_Linux_syscalls		358
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -713,16 +714,17 @@
 #define __NR_bpf			(__NR_Linux + 315)
 #define __NR_execveat			(__NR_Linux + 316)
 #define __NR_mlock2			(__NR_Linux + 317)
+#define __NR_membarrier			(__NR_Linux + 318)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		317
+#define __NR_Linux_syscalls		318
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		317
+#define __NR_64_Linux_syscalls		318
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1052,15 +1054,16 @@
 #define __NR_bpf			(__NR_Linux + 319)
 #define __NR_execveat			(__NR_Linux + 320)
 #define __NR_mlock2			(__NR_Linux + 321)
+#define __NR_membarrier			(__NR_Linux + 322)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		321
+#define __NR_Linux_syscalls		322
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		321
+#define __NR_N32_Linux_syscalls		322
 
 #endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index b0b377a..9265542 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -600,3 +600,4 @@ EXPORT(sys_call_table)
 	PTR	sys_bpf				/* 4355 */
 	PTR	sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index f12eb03..79d4fb0 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -437,4 +437,5 @@ EXPORT(sys_call_table)
 	PTR	sys_bpf				/* 5315 */
 	PTR	sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index ecdd65a..235892a 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -430,4 +430,5 @@ EXPORT(sysn32_call_table)
 	PTR	sys_bpf
 	PTR	compat_sys_execveat		/* 6320 */
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 7a8b2df..c051bd3 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -585,4 +585,5 @@ EXPORT(sys32_call_table)
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
 	PTR	sys_mlock2
+	PTR	sys_membarrier
 	.size	sys32_call_table,.-sys32_call_table
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 3+ messages in thread

* Re: [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
  2015-08-27 17:56 ` [RFC PATCH 4/9] mips: allocate sys_membarrier system call number Mathieu Desnoyers
@ 2015-08-28  7:40   ` Ralf Baechle
  2015-08-28 14:06     ` Mathieu Desnoyers
  0 siblings, 1 reply; 3+ messages in thread
From: Ralf Baechle @ 2015-08-28  7:40 UTC (permalink / raw)
  To: Mathieu Desnoyers; +Cc: Andrew Morton, linux-api, linux-kernel, linux-mips

On Thu, Aug 27, 2015 at 01:56:50PM -0400, Mathieu Desnoyers wrote:

> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>   apply this patch, build/run a membarrier-enabled kernel, and do make
>   kselftest. ]
> 
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: linux-api@vger.kernel.org
> CC: Ralf Baechle <ralf@linux-mips.org>
> CC: linux-mips@linux-mips.org
> ---
>  arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
>  arch/mips/kernel/scall32-o32.S      |  1 +
>  arch/mips/kernel/scall64-64.S       |  1 +
>  arch/mips/kernel/scall64-n32.S      |  1 +
>  arch/mips/kernel/scall64-o32.S      |  1 +
>  5 files changed, 13 insertions(+), 6 deletions(-)

Looking good assuming there is no compat syscall required.

  Ralf

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
  2015-08-28  7:40   ` Ralf Baechle
@ 2015-08-28 14:06     ` Mathieu Desnoyers
  0 siblings, 0 replies; 3+ messages in thread
From: Mathieu Desnoyers @ 2015-08-28 14:06 UTC (permalink / raw)
  To: Ralf Baechle; +Cc: Andrew Morton, linux-api, linux-kernel, linux-mips

----- On Aug 28, 2015, at 3:40 AM, Ralf Baechle ralf@linux-mips.org wrote:

> On Thu, Aug 27, 2015 at 01:56:50PM -0400, Mathieu Desnoyers wrote:
> 
>> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>>   apply this patch, build/run a membarrier-enabled kernel, and do make
>>   kselftest. ]
>> 
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> CC: Andrew Morton <akpm@linux-foundation.org>
>> CC: linux-api@vger.kernel.org
>> CC: Ralf Baechle <ralf@linux-mips.org>
>> CC: linux-mips@linux-mips.org
>> ---
>>  arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
>>  arch/mips/kernel/scall32-o32.S      |  1 +
>>  arch/mips/kernel/scall64-64.S       |  1 +
>>  arch/mips/kernel/scall64-n32.S      |  1 +
>>  arch/mips/kernel/scall64-o32.S      |  1 +
>>  5 files changed, 13 insertions(+), 6 deletions(-)
> 
> Looking good assuming there is no compat syscall required.

Indeed, sys_membarrier only takes two integer arguments, so no
compat syscall is required.

Thanks!

Mathieu

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2015-08-28 14:06 UTC | newest]

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2015-08-27 17:56 ` [RFC PATCH 4/9] mips: allocate sys_membarrier system call number Mathieu Desnoyers
2015-08-28  7:40   ` Ralf Baechle
2015-08-28 14:06     ` Mathieu Desnoyers

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