initial Olimex linux tree from Daniel, originally Feb 3, 2016

1 files changed, 47 insertions, 0 deletions

diff --git a/linux/arch/sparc/include/asm/irqflags_32.h b/linux/arch/sparc/include/asm/irqflags_32.h
new file mode 100644
index 00000000..71cc284f
--- /dev/null
+++ b/linux/arch/sparc/include/asm/irqflags_32.h
@@ -0,0 +1,47 @@
+/*
+ * include/asm/irqflags.h
+ *
+ * IRQ flags handling
+ *
+ * This file gets included from lowlevel asm headers too, to provide
+ * wrapped versions of the local_irq_*() APIs, based on the
+ * arch_local_irq_*() functions from the lowlevel headers.
+ */
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <asm/psr.h>
+
+void arch_local_irq_restore(unsigned long);
+unsigned long arch_local_irq_save(void);
+void arch_local_irq_enable(void);
+
+static inline notrace unsigned long arch_local_save_flags(void)
+{
+	unsigned long flags;
+
+	asm volatile("rd        %%psr, %0" : "=r" (flags));
+	return flags;
+}
+
+static inline notrace void arch_local_irq_disable(void)
+{
+	arch_local_irq_save();
+}
+
+static inline notrace bool arch_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & PSR_PIL) != 0;
+}
+
+static inline notrace bool arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* (__ASSEMBLY__) */
+
+#endif /* !(_ASM_IRQFLAGS_H) */