1 files changed, 63 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/irqflags.h b/arch/blackfin/include/asm/irqflags.h
new file mode 100644
index 000000000000..139cba4651b1
--- /dev/null
+++ b/arch/blackfin/include/asm/irqflags.h
@@ -0,0 +1,63 @@
+/*
+ * interface to Blackfin CEC
+ *
+ * Copyright 2009 Analog Devices Inc.
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_IRQFLAGS_H__
+#define __ASM_BFIN_IRQFLAGS_H__
+
+#ifdef CONFIG_SMP
+# include <asm/pda.h>
+# include <asm/processor.h>
+/* Forward decl needed due to cdef inter dependencies */
+static inline uint32_t __pure bfin_dspid(void);
+# define blackfin_core_id() (bfin_dspid() & 0xff)
+# define bfin_irq_flags cpu_pda[blackfin_core_id()].imask
+#else
+extern unsigned long bfin_irq_flags;
+#endif
+
+static inline void bfin_sti(unsigned long flags)
+{
+        asm volatile("sti %0;" : : "d" (flags));
+}
+
+static inline unsigned long bfin_cli(void)
+{
+        unsigned long flags;
+        asm volatile("cli %0;" : "=d" (flags));
+        return flags;
+}
+
+static inline void raw_local_irq_disable(void)
+{
+        bfin_cli();
+}
+static inline void raw_local_irq_enable(void)
+{
+        bfin_sti(bfin_irq_flags);
+}
+
+#define raw_local_save_flags(flags) do { (flags) = bfin_read_IMASK(); } while (0)
+
+#define raw_irqs_disabled_flags(flags) (((flags) & ~0x3f) == 0)
+
+static inline void raw_local_irq_restore(unsigned long flags)
+{
+        if (!raw_irqs_disabled_flags(flags))
+                raw_local_irq_enable();
+}
+
+static inline unsigned long __raw_local_irq_save(void)
+{
+        unsigned long flags = bfin_cli();
+#ifdef CONFIG_DEBUG_HWERR
+        bfin_sti(0x3f);
+#endif
+        return flags;
+}
+#define raw_local_irq_save(flags) do { (flags) = __raw_local_irq_save(); } while (0)
+
+#endif