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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/mips/include/asm/msa.h
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/mips/include/asm/msa.h')
-rw-r--r--kernel/arch/mips/include/asm/msa.h80
1 files changed, 80 insertions, 0 deletions
diff --git a/kernel/arch/mips/include/asm/msa.h b/kernel/arch/mips/include/asm/msa.h
index af5638b12..bbb85fe21 100644
--- 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) {