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29 lines
646 B
29 lines
646 B
#[inline(always)]
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#[cfg(target_arch = "x86_64")]
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pub unsafe fn disable_and_store() -> usize {
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let rflags: usize;
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asm!("pushfq; popq $0; cli" : "=r"(rflags));
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rflags & (1 << 9)
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}
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#[inline(always)]
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#[cfg(target_arch = "riscv32")]
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pub unsafe fn disable_and_store() -> usize {
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let sstatus: usize;
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asm!("csrrci $0, 0x100, 1" : "=r"(sstatus));
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sstatus & 1
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}
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#[inline(always)]
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#[cfg(target_arch = "x86_64")]
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pub unsafe fn restore(flags: usize) {
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if flags != 0 {
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asm!("sti");
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}
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}
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#[inline(always)]
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#[cfg(target_arch = "riscv32")]
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pub unsafe fn restore(flags: usize) {
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asm!("csrs 0x100, $0" :: "r"(flags));
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} |