Merge 3.10-rc6 into usb-next

[firefly-linux-kernel-4.4.55.git] / arch / mips / include / asm / irqflags.h

diff --git a/arch/mips/include/asm/irqflags.h b/arch/mips/include/asm/irqflags.h
index 9f3384c789d7bfdff5511706b0dffc3d2962c96c..45c00951888b4661ecbcf93bcc46fff33f9a9555 100644 (file)
--- a/arch/mips/include/asm/irqflags.h
+++ b/arch/mips/include/asm/irqflags.h
@@ -14,53 +14,48 @@
 #ifndef __ASSEMBLY__
 
 #include <linux/compiler.h>
+#include <linux/stringify.h>
 #include <asm/hazards.h>
 
 #if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC)
 
-__asm__(
-       "       .macro  arch_local_irq_disable\n"
+static inline void arch_local_irq_disable(void)
+{
+       __asm__ __volatile__(
        "       .set    push                                            \n"
        "       .set    noat                                            \n"
        "       di                                                      \n"
-       "       irq_disable_hazard                                      \n"
+       "       " __stringify(__irq_disable_hazard) "                   \n"
        "       .set    pop                                             \n"
-       "       .endm                                                   \n");
-
-static inline void arch_local_irq_disable(void)
-{
-       __asm__ __volatile__(
-               "arch_local_irq_disable"
-               : /* no outputs */
-               : /* no inputs */
-               : "memory");
+       : /* no outputs */
+       : /* no inputs */
+       : "memory");
 }
 
+static inline unsigned long arch_local_irq_save(void)
+{
+       unsigned long flags;
 
-__asm__(
-       "       .macro  arch_local_irq_save result                      \n"
+       asm __volatile__(
        "       .set    push                                            \n"
        "       .set    reorder                                         \n"
        "       .set    noat                                            \n"
-       "       di      \\result                                        \n"
-       "       andi    \\result, 1                                     \n"
-       "       irq_disable_hazard                                      \n"
+       "       di      %[flags]                                        \n"
+       "       andi    %[flags], 1                                     \n"
+       "       " __stringify(__irq_disable_hazard) "                   \n"
        "       .set    pop                                             \n"
-       "       .endm                                                   \n");
+       : [flags] "=r" (flags)
+       : /* no inputs */
+       : "memory");
 
-static inline unsigned long arch_local_irq_save(void)
-{
-       unsigned long flags;
-       asm volatile("arch_local_irq_save\t%0"
-                    : "=r" (flags)
-                    : /* no inputs */
-                    : "memory");
        return flags;
 }
 
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+       unsigned long __tmp1;
 
-__asm__(
-       "       .macro  arch_local_irq_restore flags                    \n"
+       __asm__ __volatile__(
        "       .set    push                                            \n"
        "       .set    noreorder                                       \n"
        "       .set    noat                                            \n"
@@ -69,7 +64,7 @@ __asm__(
         * Slow, but doesn't suffer from a relatively unlikely race
         * condition we're having since days 1.
         */
-       "       beqz    \\flags, 1f                                     \n"
+       "       beqz    %[flags], 1f                                    \n"
        "       di                                                      \n"
        "       ei                                                      \n"
        "1:                                                             \n"
@@ -78,33 +73,44 @@ __asm__(
         * Fast, dangerous.  Life is fun, life is good.
         */
        "       mfc0    $1, $12                                         \n"
-       "       ins     $1, \\flags, 0, 1                               \n"
+       "       ins     $1, %[flags], 0, 1                              \n"
        "       mtc0    $1, $12                                         \n"
 #endif
-       "       irq_disable_hazard                                      \n"
+       "       " __stringify(__irq_disable_hazard) "                   \n"
        "       .set    pop                                             \n"
-       "       .endm                                                   \n");
-
-static inline void arch_local_irq_restore(unsigned long flags)
-{
-       unsigned long __tmp1;
-
-       __asm__ __volatile__(
-               "arch_local_irq_restore\t%0"
-               : "=r" (__tmp1)
-               : "0" (flags)
-               : "memory");
+       : [flags] "=r" (__tmp1)
+       : "0" (flags)
+       : "memory");
 }
 
 static inline void __arch_local_irq_restore(unsigned long flags)
 {
-       unsigned long __tmp1;
-
        __asm__ __volatile__(
-               "arch_local_irq_restore\t%0"
-               : "=r" (__tmp1)
-               : "0" (flags)
-               : "memory");
+       "       .set    push                                            \n"
+       "       .set    noreorder                                       \n"
+       "       .set    noat                                            \n"
+#if defined(CONFIG_IRQ_CPU)
+       /*
+        * Slow, but doesn't suffer from a relatively unlikely race
+        * condition we're having since days 1.
+        */
+       "       beqz    %[flags], 1f                                    \n"
+       "       di                                                      \n"
+       "       ei                                                      \n"
+       "1:                                                             \n"
+#else
+       /*
+        * Fast, dangerous.  Life is fun, life is good.
+        */
+       "       mfc0    $1, $12                                         \n"
+       "       ins     $1, %[flags], 0, 1                              \n"
+       "       mtc0    $1, $12                                         \n"
+#endif
+       "       " __stringify(__irq_disable_hazard) "                   \n"
+       "       .set    pop                                             \n"
+       : [flags] "=r" (flags)
+       : "0" (flags)
+       : "memory");
 }
 #else
 /* Functions that require preempt_{dis,en}able() are in mips-atomic.c */
@@ -115,8 +121,18 @@ void __arch_local_irq_restore(unsigned long flags);
 #endif /* if defined(CONFIG_CPU_MIPSR2) && !defined(CONFIG_MIPS_MT_SMTC) */
 
 
-__asm__(
-       "       .macro  arch_local_irq_enable                           \n"
+extern void smtc_ipi_replay(void);
+
+static inline void arch_local_irq_enable(void)
+{
+#ifdef CONFIG_MIPS_MT_SMTC
+       /*
+        * SMTC kernel needs to do a software replay of queued
+        * IPIs, at the cost of call overhead on each local_irq_enable()
+        */
+       smtc_ipi_replay();
+#endif
+       __asm__ __volatile__(
        "       .set    push                                            \n"
        "       .set    reorder                                         \n"
        "       .set    noat                                            \n"
@@ -133,45 +149,28 @@ __asm__(
        "       xori    $1,0x1e                                         \n"
        "       mtc0    $1,$12                                          \n"
 #endif
-       "       irq_enable_hazard                                       \n"
+       "       " __stringify(__irq_enable_hazard) "                    \n"
        "       .set    pop                                             \n"
-       "       .endm");
-
-extern void smtc_ipi_replay(void);
-
-static inline void arch_local_irq_enable(void)
-{
-#ifdef CONFIG_MIPS_MT_SMTC
-       /*
-        * SMTC kernel needs to do a software replay of queued
-        * IPIs, at the cost of call overhead on each local_irq_enable()
-        */
-       smtc_ipi_replay();
-#endif
-       __asm__ __volatile__(
-               "arch_local_irq_enable"
-               : /* no outputs */
-               : /* no inputs */
-               : "memory");
+       : /* no outputs */
+       : /* no inputs */
+       : "memory");
 }
 
+static inline unsigned long arch_local_save_flags(void)
+{
+       unsigned long flags;
 
-__asm__(
-       "       .macro  arch_local_save_flags flags                     \n"
+       asm __volatile__(
        "       .set    push                                            \n"
        "       .set    reorder                                         \n"
 #ifdef CONFIG_MIPS_MT_SMTC
-       "       mfc0    \\flags, $2, 1                                  \n"
+       "       mfc0    %[flags], $2, 1                                 \n"
 #else
-       "       mfc0    \\flags, $12                                    \n"
+       "       mfc0    %[flags], $12                                   \n"
 #endif
        "       .set    pop                                             \n"
-       "       .endm                                                   \n");
+       : [flags] "=r" (flags));
 
-static inline unsigned long arch_local_save_flags(void)
-{
-       unsigned long flags;
-       asm volatile("arch_local_save_flags %0" : "=r" (flags));
        return flags;
 }