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Subject[PATCH] [MIPS] Enable the timerfd_*() o32 system calls
Date
This patch enables the system calls timerfd_create(), timerfd_settime()
and timerfd_gettime() for MIPS architecture.

Please see the following Bugzilla entry for more details:

http://bugzilla.kernel.org/show_bug.cgi?id=10038

This was tested using a Malta 4Kc board in both little-endian and
big-endian modes. The unit test program is available from the URL
above.

Note that only the "o32"-style system calls have been added. This is
due to the fact that I have no suitable equipment to test the other
flavors of MIPS ABI.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>
---
arch/mips/kernel/scall32-o32.S | 3 +++
include/asm-mips/unistd.h | 7 +++++--
2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index f798139..08a9c50 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -663,6 +663,9 @@ einval: li v0, -EINVAL
sys sys_ni_syscall 0
sys sys_eventfd 1
sys sys_fallocate 6 /* 4320 */
+ sys sys_timerfd_create 2
+ sys sys_timerfd_gettime 2
+ sys sys_timerfd_settime 4
.endm

/* We pre-compute the number of _instruction_ bytes needed to
diff --git a/include/asm-mips/unistd.h b/include/asm-mips/unistd.h
index fa9a587..7316b55 100644
--- a/include/asm-mips/unistd.h
+++ b/include/asm-mips/unistd.h
@@ -341,16 +341,19 @@
#define __NR_timerfd (__NR_Linux + 318)
#define __NR_eventfd (__NR_Linux + 319)
#define __NR_fallocate (__NR_Linux + 320)
+#define __NR_timerfd_create (__NR_Linux + 321)
+#define __NR_timerfd_gettime (__NR_Linux + 322)
+#define __NR_timerfd_settime (__NR_Linux + 323)

/*
* Offset of the last Linux o32 flavoured syscall
*/
-#define __NR_Linux_syscalls 320
+#define __NR_Linux_syscalls 323

#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */

#define __NR_O32_Linux 4000
-#define __NR_O32_Linux_syscalls 320
+#define __NR_O32_Linux_syscalls 323

#if _MIPS_SIM == _MIPS_SIM_ABI64

--
1.5.3


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