ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/sparc/include/asm/irqflags_64.h b/marvell/linux/arch/sparc/include/asm/irqflags_64.h
new file mode 100644
index 0000000..c29ed57
--- /dev/null
+++ b/marvell/linux/arch/sparc/include/asm/irqflags_64.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * 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
+
+#include <asm/pil.h>
+
+#ifndef __ASSEMBLY__
+
+static inline notrace unsigned long arch_local_save_flags(void)
+{
+ unsigned long flags;
+
+ __asm__ __volatile__(
+ "rdpr %%pil, %0"
+ : "=r" (flags)
+ );
+
+ return flags;
+}
+
+static inline notrace void arch_local_irq_restore(unsigned long flags)
+{
+ __asm__ __volatile__(
+ "wrpr %0, %%pil"
+ : /* no output */
+ : "r" (flags)
+ : "memory"
+ );
+}
+
+static inline notrace void arch_local_irq_disable(void)
+{
+ __asm__ __volatile__(
+ "wrpr %0, %%pil"
+ : /* no outputs */
+ : "i" (PIL_NORMAL_MAX)
+ : "memory"
+ );
+}
+
+static inline notrace void arch_local_irq_enable(void)
+{
+ __asm__ __volatile__(
+ "wrpr 0, %%pil"
+ : /* no outputs */
+ : /* no inputs */
+ : "memory"
+ );
+}
+
+static inline notrace int arch_irqs_disabled_flags(unsigned long flags)
+{
+ return (flags > 0);
+}
+
+static inline notrace int arch_irqs_disabled(void)
+{
+ return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+static inline notrace unsigned long arch_local_irq_save(void)
+{
+ unsigned long flags, tmp;
+
+ /* Disable interrupts to PIL_NORMAL_MAX unless we already
+ * are using PIL_NMI, in which case PIL_NMI is retained.
+ *
+ * The only values we ever program into the %pil are 0,
+ * PIL_NORMAL_MAX and PIL_NMI.
+ *
+ * Since PIL_NMI is the largest %pil value and all bits are
+ * set in it (0xf), it doesn't matter what PIL_NORMAL_MAX
+ * actually is.
+ */
+ __asm__ __volatile__(
+ "rdpr %%pil, %0\n\t"
+ "or %0, %2, %1\n\t"
+ "wrpr %1, 0x0, %%pil"
+ : "=r" (flags), "=r" (tmp)
+ : "i" (PIL_NORMAL_MAX)
+ : "memory"
+ );
+
+ return flags;
+}
+
+#endif /* (__ASSEMBLY__) */
+
+#endif /* !(_ASM_IRQFLAGS_H) */