MIPS: futex: Add EVA support for futex operations

Use LLE/SCE instructions for performing an address translation for
userspace when EVA is enabled.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>

diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h
index 6ea15815d3ee2f83456f665b5fdfcacf2a537d9a..1fe2cd6cdca01506a5bc6cad29648d1c823768d2 100644 (file)
--- a/arch/mips/include/asm/futex.h
+++ b/arch/mips/include/asm/futex.h
@@ -12,6 +12,7 @@
 
 #include <linux/futex.h>
 #include <linux/uaccess.h>
+#include <asm/asm-eva.h>
 #include <asm/barrier.h>
 #include <asm/errno.h>
 #include <asm/war.h>
@@ -49,11 +50,11 @@
                "       .set    push                            \n"     \
                "       .set    noat                            \n"     \
                "       .set    mips3                           \n"     \
-               "1:     ll      %1, %4  # __futex_atomic_op     \n"     \
+               "1:     "user_ll("%1", "%4")" # __futex_atomic_op\n"    \
                "       .set    mips0                           \n"     \
                "       " insn  "                               \n"     \
                "       .set    mips3                           \n"     \
-               "2:     sc      $1, %2                          \n"     \
+               "2:     "user_sc("$1", "%2")"                   \n"     \
                "       beqz    $1, 1b                          \n"     \
                __WEAK_LLSC_MB                                          \
                "3:                                             \n"     \
@@ -174,12 +175,12 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
                "       .set    push                                    \n"
                "       .set    noat                                    \n"
                "       .set    mips3                                   \n"
-               "1:     ll      %1, %3                                  \n"
+               "1:     "user_ll("%1", "%3")"                           \n"
                "       bne     %1, %z4, 3f                             \n"
                "       .set    mips0                                   \n"
                "       move    $1, %z5                                 \n"
                "       .set    mips3                                   \n"
-               "2:     sc      $1, %2                                  \n"
+               "2:     "user_sc("$1", "%2")"                           \n"
                "       beqz    $1, 1b                                  \n"
                __WEAK_LLSC_MB
                "3:                                                     \n"