ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/arch/s390/include/asm/fpu/internal.h b/marvell/linux/arch/s390/include/asm/fpu/internal.h
new file mode 100644
index 0000000..4a71dbb
--- /dev/null
+++ b/marvell/linux/arch/s390/include/asm/fpu/internal.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * FPU state and register content conversion primitives
+ *
+ * Copyright IBM Corp. 2015
+ * Author(s): Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+ */
+
+#ifndef _ASM_S390_FPU_INTERNAL_H
+#define _ASM_S390_FPU_INTERNAL_H
+
+#include <linux/string.h>
+#include <asm/ctl_reg.h>
+#include <asm/fpu/types.h>
+
+static inline void save_vx_regs(__vector128 *vxrs)
+{
+ asm volatile(
+ " la 1,%0\n"
+ " .word 0xe70f,0x1000,0x003e\n" /* vstm 0,15,0(1) */
+ " .word 0xe70f,0x1100,0x0c3e\n" /* vstm 16,31,256(1) */
+ : "=Q" (*(struct vx_array *) vxrs) : : "1");
+}
+
+static inline void convert_vx_to_fp(freg_t *fprs, __vector128 *vxrs)
+{
+ int i;
+
+ for (i = 0; i < __NUM_FPRS; i++)
+ fprs[i] = *(freg_t *)(vxrs + i);
+}
+
+static inline void convert_fp_to_vx(__vector128 *vxrs, freg_t *fprs)
+{
+ int i;
+
+ for (i = 0; i < __NUM_FPRS; i++)
+ *(freg_t *)(vxrs + i) = fprs[i];
+}
+
+static inline void fpregs_store(_s390_fp_regs *fpregs, struct fpu *fpu)
+{
+ fpregs->pad = 0;
+ fpregs->fpc = fpu->fpc;
+ if (MACHINE_HAS_VX)
+ convert_vx_to_fp((freg_t *)&fpregs->fprs, fpu->vxrs);
+ else
+ memcpy((freg_t *)&fpregs->fprs, fpu->fprs,
+ sizeof(fpregs->fprs));
+}
+
+static inline void fpregs_load(_s390_fp_regs *fpregs, struct fpu *fpu)
+{
+ fpu->fpc = fpregs->fpc;
+ if (MACHINE_HAS_VX)
+ convert_fp_to_vx(fpu->vxrs, (freg_t *)&fpregs->fprs);
+ else
+ memcpy(fpu->fprs, (freg_t *)&fpregs->fprs,
+ sizeof(fpregs->fprs));
+}
+
+#endif /* _ASM_S390_FPU_INTERNAL_H */