These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / arch / mips / include / asm / msa.h

diff --git a/kernel/arch/mips/include/asm/msa.h b/kernel/arch/mips/include/asm/msa.h
index af5638b..bbb85fe 100644 (file)
--- a/kernel/arch/mips/include/asm/msa.h
+++ b/kernel/arch/mips/include/asm/msa.h
@@ -14,10 +14,90 @@
 
 #ifndef __ASSEMBLY__
 
+#include <asm/inst.h>
+
 extern void _save_msa(struct task_struct *);
 extern void _restore_msa(struct task_struct *);
 extern void _init_msa_upper(void);
 
+extern void read_msa_wr_b(unsigned idx, union fpureg *to);
+extern void read_msa_wr_h(unsigned idx, union fpureg *to);
+extern void read_msa_wr_w(unsigned idx, union fpureg *to);
+extern void read_msa_wr_d(unsigned idx, union fpureg *to);
+
+/**
+ * read_msa_wr() - Read a single MSA vector register
+ * @idx:       The index of the vector register to read
+ * @to:                The FPU register union to store the registers value in
+ * @fmt:       The format of the data in the vector register
+ *
+ * Read the value of MSA vector register idx into the FPU register
+ * union to, using the format fmt.
+ */
+static inline void read_msa_wr(unsigned idx, union fpureg *to,
+                              enum msa_2b_fmt fmt)
+{
+       switch (fmt) {
+       case msa_fmt_b:
+               read_msa_wr_b(idx, to);
+               break;
+
+       case msa_fmt_h:
+               read_msa_wr_h(idx, to);
+               break;
+
+       case msa_fmt_w:
+               read_msa_wr_w(idx, to);
+               break;
+
+       case msa_fmt_d:
+               read_msa_wr_d(idx, to);
+               break;
+
+       default:
+               BUG();
+       }
+}
+
+extern void write_msa_wr_b(unsigned idx, union fpureg *from);
+extern void write_msa_wr_h(unsigned idx, union fpureg *from);
+extern void write_msa_wr_w(unsigned idx, union fpureg *from);
+extern void write_msa_wr_d(unsigned idx, union fpureg *from);
+
+/**
+ * write_msa_wr() - Write a single MSA vector register
+ * @idx:       The index of the vector register to write
+ * @from:      The FPU register union to take the registers value from
+ * @fmt:       The format of the data in the vector register
+ *
+ * Write the value from the FPU register union from into MSA vector
+ * register idx, using the format fmt.
+ */
+static inline void write_msa_wr(unsigned idx, union fpureg *from,
+                               enum msa_2b_fmt fmt)
+{
+       switch (fmt) {
+       case msa_fmt_b:
+               write_msa_wr_b(idx, from);
+               break;
+
+       case msa_fmt_h:
+               write_msa_wr_h(idx, from);
+               break;
+
+       case msa_fmt_w:
+               write_msa_wr_w(idx, from);
+               break;
+
+       case msa_fmt_d:
+               write_msa_wr_d(idx, from);
+               break;
+
+       default:
+               BUG();
+       }
+}
+
 static inline void enable_msa(void)
 {
        if (cpu_has_msa) {