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#
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#
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#include "regname.h"
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#include "regname.h"
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#include "spr.h"
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#include "spr.h"
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.data
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flush_buffer:
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	.space 4
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.text
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.text
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.global memsetb
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.global memsetb
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.global memcpy
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.global memcpy
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.global halt
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.global halt
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	b 1b
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	b 1b
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halt:
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halt:
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	b halt
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	b halt
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flush_instruction_cache:
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	# Flush data cache
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	lis r3, flush_buffer@h
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	ori r3, r3, flush_buffer@l
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	li r4, L1_CACHE_LINES
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	mtctr r4
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	0:
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	lwz r4, 0(r3)
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	addi r3, r3, L1_CACHE_BYTES
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	bdnz 0b
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	# Invalidate instruction cache
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	li r3, 0
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	ori	r3, r3, (HID0_ICE | HID0_DCE | HID0_ICFI | HID0_DCI)
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	mfspr r4, SPRN_HID0
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	or r5, r4, r3
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	isync
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	mtspr SPRN_HID0, r5
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	sync
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	isync
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	# Enable instruction cache
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	ori	r5, r4, HID0_ICE
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	mtspr SPRN_HID0, r5
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	sync
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	isync
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	blr
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jump_to_kernel:
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jump_to_kernel:
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	mfmsr r4
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	mfmsr r4
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	andis. r4, r4, (~MSR_DR | MSR_IR) >> 16
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	andis. r4, r4, (~MSR_DR | MSR_IR) >> 16
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	mtspr SPRN_SRR0, r3
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	mtspr SPRN_SRR0, r3
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	mtspr SPRN_SRR1, r4
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	mtspr SPRN_SRR1, r4
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	sync
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	bl flush_instruction_cache
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	RFI
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	rfi