162 lines
		
	
	
	
		
			2.4 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			162 lines
		
	
	
	
		
			2.4 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
|   | #ifndef _ASM_SCORE_ASMMACRO_H
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|  | #define _ASM_SCORE_ASMMACRO_H
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|  | 
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|  | #include <asm/asm-offsets.h>
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|  | 
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|  | #ifdef __ASSEMBLY__
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|  | 
 | ||
|  | .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 | ||
|  | 
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|  | #endif /* __ASSEMBLY__ */
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|  | #endif /* _ASM_SCORE_ASMMACRO_H */
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