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-rw-r--r--arch/score/include/asm/asmmacro.h161
1 files changed, 161 insertions, 0 deletions
diff --git a/arch/score/include/asm/asmmacro.h b/arch/score/include/asm/asmmacro.h
new file mode 100644
index 000000000000..a04a54cea25d
--- /dev/null
+++ b/arch/score/include/asm/asmmacro.h
@@ -0,0 +1,161 @@
+#ifndef _ASM_SCORE_ASMMACRO_H
+#define _ASM_SCORE_ASMMACRO_H
+
+#include <asm/asm-offsets.h>
+
+#ifdef __ASSEMBLY__
+
+.macro SAVE_ALL
+ mfcr r30, cr0
+ mv r31, r0
+ nop
+ /* if UMs == 1, change stack. */
+ slli.c r30, r30, 28
+ bpl 1f
+ la r31, kernelsp
+ lw r31, [r31]
+1:
+ mv r30, r0
+ addri r0, r31, -PT_SIZE
+
+ sw r30, [r0, PT_R0]
+ .set r1
+ sw r1, [r0, PT_R1]
+ .set nor1
+ sw r2, [r0, PT_R2]
+ sw r3, [r0, PT_R3]
+ sw r4, [r0, PT_R4]
+ sw r5, [r0, PT_R5]
+ sw r6, [r0, PT_R6]
+ sw r7, [r0, PT_R7]
+
+ sw r8, [r0, PT_R8]
+ sw r9, [r0, PT_R9]
+ sw r10, [r0, PT_R10]
+ sw r11, [r0, PT_R11]
+ sw r12, [r0, PT_R12]
+ sw r13, [r0, PT_R13]
+ sw r14, [r0, PT_R14]
+ sw r15, [r0, PT_R15]
+
+ sw r16, [r0, PT_R16]
+ sw r17, [r0, PT_R17]
+ sw r18, [r0, PT_R18]
+ sw r19, [r0, PT_R19]
+ sw r20, [r0, PT_R20]
+ sw r21, [r0, PT_R21]
+ sw r22, [r0, PT_R22]
+ sw r23, [r0, PT_R23]
+
+ sw r24, [r0, PT_R24]
+ sw r25, [r0, PT_R25]
+ sw r25, [r0, PT_R25]
+ sw r26, [r0, PT_R26]
+ sw r27, [r0, PT_R27]
+
+ sw r28, [r0, PT_R28]
+ sw r29, [r0, PT_R29]
+ orri r28, r0, 0x1fff
+ li r31, 0x00001fff
+ xor r28, r28, r31
+
+ mfcehl r30, r31
+ sw r30, [r0, PT_CEH]
+ sw r31, [r0, PT_CEL]
+
+ mfcr r31, cr0
+ sw r31, [r0, PT_PSR]
+
+ mfcr r31, cr1
+ sw r31, [r0, PT_CONDITION]
+
+ mfcr r31, cr2
+ sw r31, [r0, PT_ECR]
+
+ mfcr r31, cr5
+ srli r31, r31, 1
+ slli r31, r31, 1
+ sw r31, [r0, PT_EPC]
+.endm
+
+.macro RESTORE_ALL_AND_RET
+ mfcr r30, cr0
+ srli r30, r30, 1
+ slli r30, r30, 1
+ mtcr r30, cr0
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ .set r1
+ ldis r1, 0x00ff
+ and r30, r30, r1
+ not r1, r1
+ lw r31, [r0, PT_PSR]
+ and r31, r31, r1
+ .set nor1
+ or r31, r31, r30
+ mtcr r31, cr0
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ lw r30, [r0, PT_CONDITION]
+ mtcr r30, cr1
+ nop
+ nop
+ nop
+ nop
+ nop
+
+ lw r30, [r0, PT_CEH]
+ lw r31, [r0, PT_CEL]
+ mtcehl r30, r31
+
+ .set r1
+ lw r1, [r0, PT_R1]
+ .set nor1
+ lw r2, [r0, PT_R2]
+ lw r3, [r0, PT_R3]
+ lw r4, [r0, PT_R4]
+ lw r5, [r0, PT_R5]
+ lw r6, [r0, PT_R6]
+ lw r7, [r0, PT_R7]
+
+ lw r8, [r0, PT_R8]
+ lw r9, [r0, PT_R9]
+ lw r10, [r0, PT_R10]
+ lw r11, [r0, PT_R11]
+ lw r12, [r0, PT_R12]
+ lw r13, [r0, PT_R13]
+ lw r14, [r0, PT_R14]
+ lw r15, [r0, PT_R15]
+
+ lw r16, [r0, PT_R16]
+ lw r17, [r0, PT_R17]
+ lw r18, [r0, PT_R18]
+ lw r19, [r0, PT_R19]
+ lw r20, [r0, PT_R20]
+ lw r21, [r0, PT_R21]
+ lw r22, [r0, PT_R22]
+ lw r23, [r0, PT_R23]
+
+ lw r24, [r0, PT_R24]
+ lw r25, [r0, PT_R25]
+ lw r26, [r0, PT_R26]
+ lw r27, [r0, PT_R27]
+ lw r28, [r0, PT_R28]
+ lw r29, [r0, PT_R29]
+
+ lw r30, [r0, PT_EPC]
+ lw r0, [r0, PT_R0]
+ mtcr r30, cr5
+ rte
+.endm
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_SCORE_ASMMACRO_H */