Support the MIPS32 / MIPS64 DSP ASE.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 8 insertions, 3 deletions

diff --git a/include/asm-mips/system.h b/include/asm-mips/system.h
index 6663efd49b27..cd3a6bca7abd 100644
--- a/include/asm-mips/system.h
+++ b/include/asm-mips/system.h
@@ -17,6 +17,7 @@
 
 #include <asm/addrspace.h>
 #include <asm/cpu-features.h>
+#include <asm/dsp.h>
 #include <asm/ptrace.h>
 #include <asm/war.h>
 #include <asm/interrupt.h>
@@ -154,9 +155,13 @@ extern asmlinkage void *resume(void *last, void *next, void *next_ti);
 
 struct task_struct;
 
-#define switch_to(prev,next,last) \
-do { \
-        (last) = resume(prev, next, next->thread_info); \
+#define switch_to(prev,next,last)                                       \
+do {                                                                    \
+        if (cpu_has_dsp)                                                \
+                __save_dsp(prev);                                       \
+        (last) = resume(prev, next, next->thread_info);                 \
+        if (cpu_has_dsp)                                                \
+                __restore_dsp(current);                                 \
 } while(0)
 
 #define ROT_IN_PIECES                                                   \