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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-08-10 19:46:28 +0200 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-08-10 19:46:28 +0200 |
| commit | 2f058256cb64e346f4fb4499ff4e0f1c2791a4b4 (patch) | |
| tree | 91e06602f4d3abb6812ea8c9bc9ba4501e14c84e /include/asm-i386/tlbflush.h | |
| parent | libata: Update 'passthru' branch for latest libata (diff) | |
| parent | [PATCH] Fix ide-disk.c oops caused by hwif == NULL (diff) | |
| download | linux-2f058256cb64e346f4fb4499ff4e0f1c2791a4b4.tar.xz linux-2f058256cb64e346f4fb4499ff4e0f1c2791a4b4.zip | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'include/asm-i386/tlbflush.h')
| -rw-r--r-- | include/asm-i386/tlbflush.h | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/include/asm-i386/tlbflush.h b/include/asm-i386/tlbflush.h index f22fab0cea26..ab216e1370ef 100644 --- a/include/asm-i386/tlbflush.h +++ b/include/asm-i386/tlbflush.h @@ -22,16 +22,18 @@ */ #define __flush_tlb_global() \ do { \ - unsigned int tmpreg; \ + unsigned int tmpreg, cr4, cr4_orig; \ \ __asm__ __volatile__( \ - "movl %1, %%cr4; # turn off PGE \n" \ + "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" (mmu_cr4_features & ~X86_CR4_PGE), \ - "r" (mmu_cr4_features) \ + : "=&r" (tmpreg), "=&r" (cr4), "=&r" (cr4_orig) \ + : "i" (~X86_CR4_PGE) \ : "memory"); \ } while (0) |