43 lines
2.3 KiB
C
43 lines
2.3 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _I386_TLBFLUSH_H
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#define _I386_TLBFLUSH_H
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#include <linux/mm.h>
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#include <asm/processor.h>
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#define __flush_tlb() __native_flush_tlb()
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#define __flush_tlb_global() __native_flush_tlb_global()
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#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
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#define __native_flush_tlb() do { unsigned int tmpreg; __asm__ __volatile__( "movl %%cr3, %0; \n" "movl %0, %%cr3; # flush TLB \n" : "=r" (tmpreg) :: "memory"); } while (0)
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#define __native_flush_tlb_global() do { unsigned int tmpreg, cr4, cr4_orig; __asm__ __volatile__( "movl %%cr4, %2; # turn off PGE \n" "movl %2, %1; \n" "andl %3, %1; \n" "movl %1, %%cr4; \n" "movl %%cr3, %0; \n" "movl %0, %%cr3; # flush TLB \n" "movl %2, %%cr4; # turn PGE back on \n" : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) : "i" (~X86_CR4_PGE) : "memory"); } while (0)
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#define __native_flush_tlb_single(addr) __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory")
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#define __flush_tlb_all() do { if (cpu_has_pge) __flush_tlb_global(); else __flush_tlb(); } while (0)
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#define cpu_has_invlpg (boot_cpu_data.x86 > 3)
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#define __flush_tlb_one(addr) do { if (cpu_has_invlpg) __flush_tlb_single(addr); else __flush_tlb(); } while (0)
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#define TLB_FLUSH_ALL 0xffffffff
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#include <linux/sched.h>
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#define flush_tlb() __flush_tlb()
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#define flush_tlb_all() __flush_tlb_all()
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#define local_flush_tlb() __flush_tlb()
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#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
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#endif
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