[MIPS] Fix use of ehb instruction for non-R2 configurations.

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

3 files changed, 12 insertions, 11 deletions

diff --git a/include/asm-mips/asmmacro.h b/include/asm-mips/asmmacro.h
index 2c42f6b00a49..92e62ef711ed 100644
--- a/include/asm-mips/asmmacro.h
+++ b/include/asm-mips/asmmacro.h
@@ -26,14 +26,14 @@
         ori     \reg, \reg, TCSTATUS_IXMT
         xori    \reg, \reg, TCSTATUS_IXMT
         mtc0    \reg, CP0_TCSTATUS
-        ehb
+        _ehb
         .endm
 
         .macro  local_irq_disable reg=t0
         mfc0    \reg, CP0_TCSTATUS
         ori     \reg, \reg, TCSTATUS_IXMT
         mtc0    \reg, CP0_TCSTATUS
-        ehb
+        _ehb
         .endm
 #else
         .macro  local_irq_enable reg=t0
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index 673977901ed3..9192d76c133d 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -1459,7 +1459,8 @@ static inline void __emt(unsigned int previous)
 static inline void __ehb(void)
 {
         __asm__ __volatile__(
-        "       ehb                                                     \n");
+        "       .set    mips32r2                                        \n"
+        "       ehb                                                     \n"             "       .set    mips0                                           \n");
 }
 
 /*
diff --git a/include/asm-mips/stackframe.h b/include/asm-mips/stackframe.h
index 513aa5133830..158a4cd12e46 100644
--- a/include/asm-mips/stackframe.h
+++ b/include/asm-mips/stackframe.h
@@ -304,7 +304,7 @@
                 mfc0    v0, CP0_TCSTATUS
                 ori     v0, TCSTATUS_IXMT
                 mtc0    v0, CP0_TCSTATUS
-                ehb
+                _ehb
                 DMT     5                               # dmt a1
                 jal     mips_ihb
 #endif /* CONFIG_MIPS_MT_SMTC */
@@ -325,14 +325,14 @@
  * restore TCStatus.IXMT.
  */
                 LONG_L  v1, PT_TCSTATUS(sp)
-                ehb
+                _ehb
                 mfc0    v0, CP0_TCSTATUS
                 andi    v1, TCSTATUS_IXMT
                 /* We know that TCStatua.IXMT should be set from above */
                 xori    v0, v0, TCSTATUS_IXMT
                 or      v0, v0, v1
                 mtc0    v0, CP0_TCSTATUS
-                ehb
+                _ehb
                 andi    a1, a1, VPECONTROL_TE
                 beqz    a1, 1f
                 emt
@@ -411,7 +411,7 @@
                 /* Clear TKSU, leave IXMT */
                 xori    t0, 0x00001800
                 mtc0    t0, CP0_TCSTATUS
-                ehb
+                _ehb
                 /* We need to leave the global IE bit set, but clear EXL...*/
                 mfc0    t0, CP0_STATUS
                 ori     t0, ST0_EXL | ST0_ERL
@@ -438,7 +438,7 @@
                  * and enable interrupts only for the
                  * current TC, using the TCStatus register.
                  */
-                ehb
+                _ehb
                 mfc0    t0,CP0_TCSTATUS
                 /* Fortunately CU 0 is in the same place in both registers */
                 /* Set TCU0, TKSU (for later inversion) and IXMT */
@@ -447,7 +447,7 @@
                 /* Clear TKSU *and* IXMT */
                 xori    t0, 0x00001c00
                 mtc0    t0, CP0_TCSTATUS
-                ehb
+                _ehb
                 /* We need to leave the global IE bit set, but clear EXL...*/
                 mfc0    t0, CP0_STATUS
                 ori     t0, ST0_EXL
@@ -479,7 +479,7 @@
                 andi    v1, v0, TCSTATUS_IXMT
                 ori     v0, TCSTATUS_IXMT
                 mtc0    v0, CP0_TCSTATUS
-                ehb
+                _ehb
                 DMT     2                               # dmt   v0
                 /*
                  * We don't know a priori if ra is "live"
@@ -495,7 +495,7 @@
                 xori    t0, 0x1e
                 mtc0    t0, CP0_STATUS
 #ifdef CONFIG_MIPS_MT_SMTC
-                ehb
+                _ehb
                 andi    v0, v0, VPECONTROL_TE
                 beqz    v0, 2f
                 nop     /* delay slot */