[MIPS] FPU affinity for MT ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 4e36b87be1ed..a0ac0e5f61ad 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -569,8 +569,19 @@ einval:	li	v0, -EINVAL
         sys     sys_tkill               2
         sys     sys_sendfile64          5
         sys     sys_futex               6
+#ifdef CONFIG_MIPS_MT_FPAFF
+        /*
+         * For FPU affinity scheduling on MIPS MT processors, we need to
+         * intercept sys_sched_xxxaffinity() calls until we get a proper hook
+         * in kernel/sched.c.  Considered only temporary we only support these
+         * hooks for the 32-bit kernel - there is no MIPS64 MT processor atm.
+         */
+        sys     mipsmt_sys_sched_setaffinity    3
+        sys     mipsmt_sys_sched_getaffinity    3
+#else
         sys     sys_sched_setaffinity   3
         sys     sys_sched_getaffinity   3       /* 4240 */
+#endif /* CONFIG_MIPS_MT_FPAFF */
         sys     sys_io_setup            2
         sys     sys_io_destroy          1
         sys     sys_io_getevents        5