Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/psr.h b/arch/sparc/include/asm/psr.h
new file mode 100644
index 000000000..65127ce56
--- /dev/null
+++ b/arch/sparc/include/asm/psr.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * psr.h: This file holds the macros for masking off various parts of
+ *        the processor status register on the Sparc. This is valid
+ *        for Version 8. On the V9 this is renamed to the PSTATE
+ *        register and its members are accessed as fields like
+ *        PSTATE.PRIV for the current CPU privilege level.
+ *
+ * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
+ */
+#ifndef __LINUX_SPARC_PSR_H
+#define __LINUX_SPARC_PSR_H
+
+#include <uapi/asm/psr.h>
+
+
+#ifndef __ASSEMBLY__
+/* Get the %psr register. */
+static inline unsigned int get_psr(void)
+{
+	unsigned int psr;
+	__asm__ __volatile__(
+		"rd	%%psr, %0\n\t"
+		"nop\n\t"
+		"nop\n\t"
+		"nop\n\t"
+	: "=r" (psr)
+	: /* no inputs */
+	: "memory");
+
+	return psr;
+}
+
+static inline void put_psr(unsigned int new_psr)
+{
+	__asm__ __volatile__(
+		"wr	%0, 0x0, %%psr\n\t"
+		"nop\n\t"
+		"nop\n\t"
+		"nop\n\t"
+	: /* no outputs */
+	: "r" (new_psr)
+	: "memory", "cc");
+}
+
+/* Get the %fsr register.  Be careful, make sure the floating point
+ * enable bit is set in the %psr when you execute this or you will
+ * incur a trap.
+ */
+
+extern unsigned int fsr_storage;
+
+static inline unsigned int get_fsr(void)
+{
+	unsigned int fsr = 0;
+
+	__asm__ __volatile__(
+		"st	%%fsr, %1\n\t"
+		"ld	%1, %0\n\t"
+	: "=r" (fsr)
+	: "m" (fsr_storage));
+
+	return fsr;
+}
+
+#endif /* !(__ASSEMBLY__) */
+
+#endif /* !(__LINUX_SPARC_PSR_H) */