--- zzzz-none-000/linux-3.10.107/arch/mips/include/asm/stackframe.h	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/include/asm/stackframe.h	2021-11-10 11:53:54.000000000 +0000
@@ -51,6 +51,25 @@
 		LONG_S	v1, PT_ACX(sp)
 #else
 		mfhi	v1
+		LONG_S	v1, PT_HI(sp)
+		mflo	v1
+		LONG_S	v1, PT_LO(sp)
+#ifdef __mips_dsp
+		rddsp   v1
+		LONG_S	v1, PT_DSPCTRL(sp)
+		mfhi	v1, $ac1
+		LONG_S	v1, PT_AC1HI(sp)
+		mflo	v1, $ac1
+		LONG_S	v1, PT_AC1LO(sp)
+		mfhi	v1, $ac2
+		LONG_S	v1, PT_AC2HI(sp)
+		mflo	v1, $ac2
+		LONG_S	v1, PT_AC2LO(sp)
+		mfhi	v1, $ac3
+		LONG_S	v1, PT_AC3HI(sp)
+		mflo	v1, $ac3
+		LONG_S	v1, PT_AC3LO(sp)
+#endif /* __mips_dsp */
 #endif
 #ifdef CONFIG_32BIT
 		LONG_S	$8, PT_R8(sp)
@@ -59,17 +78,10 @@
 		LONG_S	$10, PT_R10(sp)
 		LONG_S	$11, PT_R11(sp)
 		LONG_S	$12, PT_R12(sp)
-#ifndef CONFIG_CPU_HAS_SMARTMIPS
-		LONG_S	v1, PT_HI(sp)
-		mflo	v1
-#endif
 		LONG_S	$13, PT_R13(sp)
 		LONG_S	$14, PT_R14(sp)
 		LONG_S	$15, PT_R15(sp)
 		LONG_S	$24, PT_R24(sp)
-#ifndef CONFIG_CPU_HAS_SMARTMIPS
-		LONG_S	v1, PT_LO(sp)
-#endif
 		.endm
 
 		.macro	SAVE_STATIC
@@ -195,9 +207,9 @@
 		 * Ideally, these instructions would be shuffled in
 		 * to cover the pipeline delay.
 		 */
-		.set	mips32
+/*		.set	mips32 CPUs die SMTC können benötigen das hier nicht */
 		mfc0	k0, CP0_TCSTATUS
-		.set	mips0
+/*		.set	mips0 */
 		LONG_S	k0, PT_TCSTATUS(sp)
 #endif /* CONFIG_MIPS_MT_SMTC */
 		LONG_S	$4, PT_R4(sp)
@@ -260,6 +272,22 @@
 		mtlo	$24
 		LONG_L	$24, PT_HI(sp)
 		mthi	$24
+#ifdef __mips_dsp
+		LONG_L	$24, PT_DSPCTRL(sp)
+		wrdsp   $24
+		LONG_L	$24, PT_AC1LO(sp)
+		mtlo	$24, $ac1
+		LONG_L	$24, PT_AC1HI(sp)
+		mthi	$24, $ac1
+		LONG_L	$24, PT_AC2LO(sp)
+		mtlo	$24, $ac2
+		LONG_L	$24, PT_AC2HI(sp)
+		mthi	$24, $ac2
+		LONG_L	$24, PT_AC3LO(sp)
+		mtlo	$24, $ac3
+		LONG_L	$24, PT_AC3HI(sp)
+		mthi	$24, $ac3
+#endif /* __mips_dsp */
 #endif
 #ifdef CONFIG_32BIT
 		LONG_L	$8, PT_R8(sp)
@@ -448,7 +476,7 @@
 
 		.macro	RESTORE_SP_AND_RET
 		LONG_L	sp, PT_R29(sp)
-		.set	mips3
+		.set	mips32r2
 		eret
 		.set	mips0
 		.endm