Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus

[pandora-kernel.git] / arch / mn10300 / include / asm / irqflags.h

diff --git a/arch/mn10300/include/asm/irqflags.h b/arch/mn10300/include/asm/irqflags.h
index 5e529a1..7a7ae12 100644 (file)
--- a/arch/mn10300/include/asm/irqflags.h
+++ b/arch/mn10300/include/asm/irqflags.h
@@ -13,6 +13,9 @@
 #define _ASM_IRQFLAGS_H
 
 #include <asm/cpu-regs.h>
+#ifndef __ASSEMBLY__
+#include <linux/smp.h>
+#endif
 
 /*
  * interrupt control
@@ -23,11 +26,7 @@
  *   - level 6 - timer interrupt
  * - "enabled":  run in IM7
  */
-#ifdef CONFIG_MN10300_TTYSM
-#define MN10300_CLI_LEVEL      EPSW_IM_2
-#else
-#define MN10300_CLI_LEVEL      EPSW_IM_1
-#endif
+#define MN10300_CLI_LEVEL      (CONFIG_LINUX_CLI_LEVEL << EPSW_IM_SHIFT)
 
 #ifndef __ASSEMBLY__
 
@@ -64,11 +63,12 @@ static inline unsigned long arch_local_irq_save(void)
 /*
  * we make sure arch_irq_enable() doesn't cause priority inversion
  */
-extern unsigned long __mn10300_irq_enabled_epsw;
+extern unsigned long __mn10300_irq_enabled_epsw[];
 
 static inline void arch_local_irq_enable(void)
 {
        unsigned long tmp;
+       int cpu = raw_smp_processor_id();
 
        asm volatile(
                "       mov     epsw,%0         \n"
@@ -76,8 +76,8 @@ static inline void arch_local_irq_enable(void)
                "       or      %2,%0           \n"
                "       mov     %0,epsw         \n"
                : "=&d"(tmp)
-               : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw)
-               : "memory");
+               : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw[cpu])
+               : "memory", "cc");
 }
 
 static inline void arch_local_irq_restore(unsigned long flags)
@@ -94,7 +94,7 @@ static inline void arch_local_irq_restore(unsigned long flags)
 
 static inline bool arch_irqs_disabled_flags(unsigned long flags)
 {
-       return (flags & EPSW_IM) <= MN10300_CLI_LEVEL;
+       return (flags & (EPSW_IE | EPSW_IM)) != (EPSW_IE | EPSW_IM_7);
 }
 
 static inline bool arch_irqs_disabled(void)
@@ -109,6 +109,9 @@ static inline bool arch_irqs_disabled(void)
  */
 static inline void arch_safe_halt(void)
 {
+#ifdef CONFIG_SMP
+       arch_local_irq_enable();
+#else
        asm volatile(
                "       or      %0,epsw \n"
                "       nop             \n"
@@ -117,7 +120,97 @@ static inline void arch_safe_halt(void)
                :
                : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)
                : "cc");
+#endif
 }
 
+#define __sleep_cpu()                          \
+do {                                           \
+       asm volatile(                           \
+               "       bset    %1,(%0)\n"      \
+               "1:     btst    %1,(%0)\n"      \
+               "       bne     1b\n"           \
+               :                               \
+               : "i"(&CPUM), "i"(CPUM_SLEEP)   \
+               : "cc"                          \
+               );                              \
+} while (0)
+
+static inline void arch_local_cli(void)
+{
+       asm volatile(
+               "       and     %0,epsw         \n"
+               "       nop                     \n"
+               "       nop                     \n"
+               "       nop                     \n"
+               :
+               : "i"(~EPSW_IE)
+               : "memory"
+               );
+}
+
+static inline unsigned long arch_local_cli_save(void)
+{
+       unsigned long flags = arch_local_save_flags();
+       arch_local_cli();
+       return flags;
+}
+
+static inline void arch_local_sti(void)
+{
+       asm volatile(
+               "       or      %0,epsw         \n"
+               :
+               : "i"(EPSW_IE)
+               : "memory");
+}
+
+static inline void arch_local_change_intr_mask_level(unsigned long level)
+{
+       asm volatile(
+               "       and     %0,epsw         \n"
+               "       or      %1,epsw         \n"
+               :
+               : "i"(~EPSW_IM), "i"(EPSW_IE | level)
+               : "cc", "memory");
+}
+
+#else /* !__ASSEMBLY__ */
+
+#define LOCAL_SAVE_FLAGS(reg)                  \
+       mov     epsw,reg
+
+#define LOCAL_IRQ_DISABLE                              \
+       and     ~EPSW_IM,epsw;                          \
+       or      EPSW_IE|MN10300_CLI_LEVEL,epsw;         \
+       nop;                                            \
+       nop;                                            \
+       nop
+
+#define LOCAL_IRQ_ENABLE               \
+       or      EPSW_IE|EPSW_IM_7,epsw
+
+#define LOCAL_IRQ_RESTORE(reg) \
+       mov     reg,epsw
+
+#define LOCAL_CLI_SAVE(reg)    \
+       mov     epsw,reg;       \
+       and     ~EPSW_IE,epsw;  \
+       nop;                    \
+       nop;                    \
+       nop
+
+#define LOCAL_CLI              \
+       and     ~EPSW_IE,epsw;  \
+       nop;                    \
+       nop;                    \
+       nop
+
+#define LOCAL_STI              \
+       or      EPSW_IE,epsw
+
+#define LOCAL_CHANGE_INTR_MASK_LEVEL(level)    \
+       and     ~EPSW_IM,epsw;                  \
+       or      EPSW_IE|(level),epsw
+
 #endif /* __ASSEMBLY__ */
 #endif /* _ASM_IRQFLAGS_H */