31 lines
517 B
ArmAsm
31 lines
517 B
ArmAsm
#if __riscv_xlen == 64
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# define STORE sd
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# define LOAD ld
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# define LOG_REGBYTES 3
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#else
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# define STORE sw
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# define LOAD lw
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# define LOG_REGBYTES 2
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#endif
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#define REGBYTES (1 << LOG_REGBYTES)
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.global enable_mmu
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.global return_from_interrupt
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.text
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enable_mmu:
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la sp, _estack // Trash the stack and start over
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return_from_interrupt:
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mret // Return to kmain
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.global flush_mmu
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flush_mmu:
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sfence.vma
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ret
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.global my_fence
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.global read_satp
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.text
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read_satp:
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csrr a0, satp
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ret
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