[MIPS] Wire up the timerfd_*() o32 system calls

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.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@gmail.com>

[Ralf: Added N64, N32 and O32 bits on 64-bit kernels.]
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

4 files changed, 12 insertions, 0 deletions

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index f798139e888e..08a9c5070ea8 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/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index a626be6baea3..dc597b600c68 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -478,4 +478,7 @@ sys_call_table:
         PTR     sys_ni_syscall
         PTR     sys_eventfd
         PTR     sys_fallocate
+        PTR     sys_timerfd_create              /* 5280 */
+        PTR     sys_timerfd_gettime
+        PTR     sys_timerfd_settime
         .size   sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 9d5bcaf1b389..12940eca7893 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -404,4 +404,7 @@ EXPORT(sysn32_call_table)
         PTR     sys_ni_syscall
         PTR     sys_eventfd
         PTR     sys_fallocate
+        PTR     sys_timerfd_create
+        PTR     sys_timerfd_gettime             /* 5285 */
+        PTR     sys_timerfd_settime
         .size   sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index fd2019c1ec2d..9a275efb4f04 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -526,4 +526,7 @@ sys_call_table:
         PTR     sys_ni_syscall
         PTR     sys_eventfd
         PTR     sys32_fallocate                 /* 4320 */
+        PTR     sys_timerfd_create
+        PTR     sys_timerfd_gettime
+        PTR     sys_timerfd_settime
         .size   sys_call_table,.-sys_call_table