CoCalc -- asmmacro.h

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